#: locale=en ## Action ### PDF PopupPDFBehaviour_20B2254B_3D6A_4D30_41CA_ADDBA418EB31.url = files/Pump%20Test%20Form_en.pdf PopupPDFBehaviour_506607D4_4273_966E_41A7_A9928CC2D554.url = files/Older%20Triple%20Duty%20Valve%20Submittal_en.pdf PopupPDFBehaviour_518AFA1B_4250_9E1A_41BF_56D696E0E53B.url = files/Bell%20and%20Gossett%206%20%20G%20Submittal_en.pdf PopupPDFBehaviour_9A12115D_8148_332E_41D4_4C4FD1452BB3.url = files/CHW%20Plant%20Drawing%20Set_en.pdf PopupPDFBehaviour_CB4E1DA6_DD63_5F02_41D6_DEB6F6F2F47B.url = files/Flow%20Switch%20Information_en.pdf PopupPDFBehaviour_87C76276_94B7_8CCB_41B0_895E9BE24D91.url = files/Initial%20Info%20Request_en.pdf PopupPDFBehaviour_86DF2921_95AC_9C48_41C8_5FD6B625EFB2.url = files/Operator%20Interview%20Results_en.pdf PopupPDFBehaviour_64EBFBF2_44A7_18AA_41B7_B3DE4EF9577A.url = files/Ball%20Room%20AHU%20Drawing%20Set_en.pdf PopupPDFBehaviour_64CA3DB1_44A7_38A6_41A4_30F5F51C96A2.url = files/CHW%20Plant%20Drawing%20Set_en.pdf PopupPDFBehaviour_5BFC596A_44A1_39BA_41B6_60365BDAB97D.url = files/CHW%20Plant%20Drawing%20Set_en.pdf PopupPDFBehaviour_08190BAB_4D45_A809_41D1_4EF2F9942CD8.url = files/CHW%20Plant%20Drawing%20Set_en.pdf PopupPDFBehaviour_08190BAB_4D45_A809_41D1_4EF2F9942CD8.url = files/CHW%20Plant%20Drawing%20Set_en.pdf PopupPDFBehaviour_1FAEF013_3F3A_4350_41BB_887445F225F8.url = files/Centrifugal%20Pump%20Application%20and%20Optimization_en.pdf PopupPDFBehaviour_6596F9D7_472B_C4D0_41C6_993D259D1858.url = files/Hijend%20Hotel%20CH2%20Evaporator%20Pump%20Test%20Results_en.pdf PopupPDFBehaviour_1CCF2C36_3F36_C350_41C0_1CDFD81B7A2C.url = files/Pump%20System%20Troubleshooting_en.pdf PopupPDFBehaviour_1C237D91_3CDA_7D50_41C7_AEFD6EAC7B06.url = files/Sample%20Pump%20I%20and%20OM_en.pdf PopupPDFBehaviour_72061139_6116_28C3_41D0_6DA5625E5CB2.url = files/2024-01-30%20PEC%20Evaporator%20Pump%20and%20Flow%20Profile%20v1_en.pdf PopupPDFBehaviour_ED60F0A5_562F_ADC2_41BF_0EB148647CE3.url = files/Hyspan%20Meter%20Data%20and%20Instructions_en.pdf ### URL LinkBehaviour_9273A6E4_56E2_B543_41C8_9136001E2F0B.source = https://av8rdas.wordpress.com/?s=aliasing LinkBehaviour_67E75E32_719B_5303_41C2_216EB1ABF6EB.source = https://www.av8rdas.com/ashrae---engineers-notebook.html#TMY LinkBehaviour_EFE8DE6F_56E1_955D_41D1_86C3053549E0.source = https://www.av8rdas.com/data-logging-resources.html PopupWebFrameBehaviour_2AF44560_3D6A_4DF0_41B4_31C404362A12.url = https://www.av8rdas.com/functional-testing-guide.html LinkBehaviour_ECE1CB28_56E1_9CC3_41CE_904E44C7B5AA.source = https://www.av8rdas.com/plot-digitizer.html LinkBehaviour_668249D8_719C_B100_41D9_687AEBB0B454.source = https://www.av8rdas.com/pump-power-and-energy.html LinkBehaviour_EC68B93A_56E2_7CC6_41C9_85A21E5DC894.source = https://www.av8rdas.com/square-law.html LinkBehaviour_EC6DCB07_56E6_9CCD_41CE_CD086027547E.source = https://www.av8rdas.com/testing-a-pump.html PopupWebFrameBehaviour_2A81F791_39AD_BA97_41B3_75DC3242698A.url = https://www.av8rdas.com/testing-a-pump.html LinkBehaviour_E2E18344_5267_9342_41CA_29892A10DDF4.source = https://www.av8rdas.com/variable-flow-systems.html PopupWebFrameBehaviour_7B8FEEBA_43CE_A808_41B6_2772A6253509.url = https://www.av8rdas.com/variable-flow-systems.html LinkBehaviour_E2E18344_5267_9342_41CA_29892A10DDF4.source = https://www.av8rdas.com/variable-flow-systems.html PopupWebFrameBehaviour_7B8FEEBA_43CE_A808_41B6_2772A6253509.url = https://www.av8rdas.com/variable-flow-systems.html PopupWebFrameBehaviour_7B8FEEBA_43CE_A808_41B6_2772A6253509.url = https://www.av8rdas.com/variable-flow-systems.html PopupWebFrameBehaviour_7B8FEEBA_43CE_A808_41B6_2772A6253509.url = https://www.av8rdas.com/variable-flow-systems.html LinkBehaviour_66D93717_719C_D101_41AA_9D0CFF4A91A7.source = https://www.xylem.com/en-us/products--services/pumps-packaged-pump-systems/pumping-accessories/bell-gossett-accessories/bell--gossett-pump-accessories/triple-duty-valves/ LinkBehaviour_6699F865_719D_FF01_41D1_AA8E08A660C0.source = https://www.xylem.com/en-us/products--services/pumps-packaged-pump-systems/pumps/end-suction-pumps/series-e-1510-base-mounted-end-suction-pumps/ WebFrame_89D1677E_91D3_E284_41D5_487D2ACF414C.url = //www.youtube.com/embed/Ac7G7xOG2Ag?si=Fr6ULPf0DDGKA6IA ## E-Learning ### Answer questionOption_FCC2A295_5222_6DC2_4192_37FF2FD96A91.text = 1. Evaporator pump amps will vary directly with flow so the amp reading can be scaled based on the design flow rate and used as a proxy for flow. This value can be used to develop the flow profile which is identical to the flow profile in the distribution system. This flow profile, when combined with the temperature difference across the chillers can be used to calculate the tons and load profile produced by the chillers for each logged data interval using the waterside load equation. Conservation of mass and energy requires that the tons produced by the chillers will exactly equal the tons consumed by the loads, thus the system load profile is identical to the chiller load profile. questionOption_FCC2A295_5222_6DC2_4192_37FF2FD96A91.text = 1. Evaporator pump amps will vary directly with flow so the amp reading can be scaled based on the design flow rate and used as a proxy for flow. This value can be used to develop the flow profile which is identical to the flow profile in the distribution system. This flow profile, when combined with the temperature difference across the chillers can be used to calculate the tons and load profile produced by the chillers for each logged data interval using the waterside load equation. Conservation of mass and energy requires that the tons produced by the chillers will exactly equal the tons consumed by the loads, thus the system load profile is identical to the chiller load profile. questionOption_FC258746_5222_734E_4198_D4BAAC887B5A.text = 2. Given the design of this plant, the evaporator pump flow will be fairly constant and can be determined using a pump test. This flow rate, when combined with the chiller temperature difference, can be used to determine the tons and load profile carried by the chillers for each logged data interval using the waterside load equation. Conservation of mass and energy requires that the tons produced by the chillers will exactly equal the tons consumed by the loads, thus the system load profile is identical to the chiller load profile. Having developed the load profile carried by the distribution loop, if the supply and return temperature for the loop is logged, then the water side load equation can be solved for flow for each logged interval and used develop the flow profile. questionOption_FC258746_5222_734E_4198_D4BAAC887B5A.text = 2. Given the design of this plant, the evaporator pump flow will be fairly constant and can be determined using a pump test. This flow rate, when combined with the chiller temperature difference, can be used to determine the tons and load profile carried by the chillers for each logged data interval using the waterside load equation. Conservation of mass and energy requires that the tons produced by the chillers will exactly equal the tons consumed by the loads, thus the system load profile is identical to the chiller load profile. Having developed the load profile carried by the distribution loop, if the supply and return temperature for the loop is logged, then the water side load equation can be solved for flow for each logged interval and used develop the flow profile. questionOption_D5F9D604_F6C8_E29A_41E8_9F4F6F3DE457.text = 0 questionOption_E77628D7_F587_7D16_41E5_0E86FA0E4409.text = 0 questionOption_D29C67A3_F6C8_A19E_41DE_690BDCE3E0DA.text = 0 questionOption_D29B58FC_F6C8_AF6A_41ED_F71D69D5AC69.text = 1 questionOption_E75BF59B_F587_571D_41D3_6B4286A2E1CA.text = 1 questionOption_D50169EB_F6C8_E16E_41B2_1B210479EA1A.text = 1 questionOption_D50EDD52_F6C8_E6BE_41BC_E9576C1B5FBB.text = 2 questionOption_E7534B22_F587_532F_41AA_7D1B316BC0AE.text = 2 questionOption_D28C0D07_F6C8_A6A6_41ED_82FAD34807F9.text = 2 questionOption_E74580CF_F586_AD76_41E9_B68780658241.text = 3 questionOption_D2B48013_F6C8_5EBE_41EA_70F12E5F122E.text = 3 questionOption_D517B08F_F6C8_DFA6_41C7_013B1019DF5D.text = 3 questionOption_D51FF413_F6C8_A6BE_41E7_3548984DFA81.text = 4 questionOption_D2BC73A0_F6C8_619A_41E6_E838DFE51B09.text = 4 questionOption_D6ED5201_F683_6CEA_41E8_F2571134E2A9.text = 4 questionOption_D520799C_F6C8_A1AA_41E1_0ED4ACD23D63.text = 5 questionOption_D2A7D67D_F6C8_636A_41C1_760932BD1F3F.text = 5 questionOption_D7329A40_F681_BD6B_41E3_A1B303B7A084.text = 5 questionOption_C9A67B46_DD6D_3B02_41E2_DD88452E74CD.text = A chilled water flow meter. questionOption_C87AE5F9_DD6D_CF0E_41DF_7D1D1D7065AB.text = A chilled water flow switch. questionOption_C82A1AC3_DD6D_C503_41CE_707F54815231.text = A condenser water flow meter. questionOption_C9F5CA33_DD6D_4502_41CB_ECE1935B7553.text = A condenser water flow switch questionOption_86DDCE24_94AC_B44F_41D2_B5283A31F8C0.text = A year's worth of interval data for the utilities. questionOption_59DA5E35_4304_D38D_41BA_5C9E9A0D219F.text = About how many hours per year are you running two chillers? questionOption_C99A5DFC_DD6C_FF05_41C4_A91DD5513674.text = An automatic air vent. questionOption_822ECEC3_9170_4992_41DC_7665CE7A9715.text = Approximately 330 tons. questionOption_87723003_9170_5892_4160_DE1C75556D23.text = Approximately 410 tons. questionOption_6F61929C_5742_24D7_41B0_F98C2390856E.text = Ask if its O.K. to use just one of their gauges or your own test gauge so you can eliminate gauge error which means you will need to be moving the gauge isolation valves and unscrewing gauges and moving them around. questionOption_67C294B2_57CE_2CD3_41D4_8A49F9EB0D3E.text = Ask if its O.K. to use just one of their gauges or your own test gauge so you can eliminate gauge error which means you will need to be moving the gauge isolation valves and unscrewing gauges and moving them around. questionOption_67C294B2_57CE_2CD3_41D4_8A49F9EB0D3E.text = Ask if its O.K. to use just one of their gauges or your own test gauge so you can eliminate gauge error which means you will need to be moving the gauge isolation valves and unscrewing gauges and moving them around. questionOption_6F61929C_5742_24D7_41B0_F98C2390856E.text = Ask if its O.K. to use just one of their gauges or your own test gauge so you can eliminate gauge error which means you will need to be moving the gauge isolation valves and unscrewing gauges and moving them around. questionOption_7C04ADE7_57C5_FC71_41D4_DF4453816177.text = Ask the staff to shut down the pump and remove the coupling guard so you can take a tach reading. questionOption_67AEE9E7_57CE_2471_4178_C93CB6108DC5.text = Ask the staff to shut down the pump and remove the coupling guard so you can take a tach reading. questionOption_67AEE9E7_57CE_2471_4178_C93CB6108DC5.text = Ask the staff to shut down the pump and remove the coupling guard so you can take a tach reading. questionOption_7C04ADE7_57C5_FC71_41D4_DF4453816177.text = Ask the staff to shut down the pump and remove the coupling guard so you can take a tach reading. questionOption_7C24D7B7_57C5_ECD0_41CB_F82133DE2471.text = Ask the staff to transition to a different chiller so that there is no risk of affecting loosing cooling during the test. questionOption_7C24D7B7_57C5_ECD0_41CB_F82133DE2471.text = Ask the staff to transition to a different chiller so that there is no risk of affecting loosing cooling during the test. questionOption_6F4246B6_5742_2CD3_41D1_3C86DA45654E.text = Ask the staff to transition to a different chiller so there is no risk of a flow safety trip during the test. questionOption_6F4246B6_5742_2CD3_41D1_3C86DA45654E.text = Ask the staff to transition to a different chiller so there is no risk of a flow safety trip during the test. questionOption_44D35173_5672_F80F_41AA_FDC355A692DE.text = Assuming gauges exist, it can be accomplished with very little time and effort. questionOption_44D35173_5672_F80F_41AA_FDC355A692DE.text = Assuming gauges exist, it can be accomplished with very little time and effort. questionOption_44DBB471_5672_F80B_41A1_AC2C75D38A13.text = Assuming the gauges are reasonably accurate, it can provide a general sense of the pumps operating point to help you prioritize your implementation targets. questionOption_44DBB471_5672_F80B_41A1_AC2C75D38A13.text = Assuming the gauges are reasonably accurate, it can provide a general sense of the pumps operating point to help you prioritize your implementation targets. questionOption_7068ED3D_4777_BD50_418B_43C617BA87AB.text = Bell and Gossett End Suction Pumps questionOption_73D952D3_4776_44D0_41B5_9474798C7228.text = Bell and Gossett Triple Duty Valves questionOption_7C3874E8_2C1C_2908_41C0_903E1360AC2E.text = CHWP-2's selector switch is in "Hand". questionOption_4C83F947_430C_B18C_41CA_C83B4E89FCEC.text = Can I use your computer for some internet searches? questionOption_7072936B_4777_C5F0_41C0_038113051F47.text = Climate Data questionOption_87FA47D5_94B5_93C9_41D6_4B48C4764B6F.text = Commissining and energy analysis reports from previous projects. questionOption_89AB99FB_91B4_618E_41DF_3D4FCB2946F3.text = Comply with the lock-out/tag-out procedures in place at the Hijend Hotel and comply with good practice for working around electrical gear. questionOption_8780851A_94AC_B47B_41CB_DA49F7A6F801.text = Construction documents (plans and specifications). questionOption_86918375_94AD_8CC9_41D9_BCC827A79517.text = Control drawings. questionOption_8BAA509F_57E2_ADFE_41C0_A70132F68347.text = Dead Head Test questionOption_8BAA509F_57E2_ADFE_41C0_A70132F68347.text = Dead Head Test questionOption_5323518C_4270_8AFE_41B9_0D9E4BDD849E.text = Do you happen to have the submittals for the pump triple duty valves in your filing system? questionOption_50577C37_4270_BA2A_419D_38EAE1C2765F.text = Do you happen to have the submittals for the evaporator pumps in your filing system? questionOption_F7523187_F8FA_A6B2_41DE_704CFF810842.text = Do you happen to know the line size for the piping serving CHWP-1 and 2? questionOption_7079E0CA_42C6_7808_41D1_8332D7D1C425.text = Do you have a system diagram for the chilled water system other than what is on the mechanical drawings? questionOption_E15F6058_52EE_6D42_41B6_9AA9ED4121B3.text = Do you have chilled water flow and temperature trended in your control system and if so, can I get a copy of the day so I can put together the flow and load profile I will need to do my savings projections? questionOption_5217929E_4251_8E1A_4161_8F1A83302888.text = Do you know how many hours per year you run each of the chillers? questionOption_500AC6CE_4270_967A_41C3_CF095C0CF2AC.text = Do you know how much you are paying for electricity on average? questionOption_7C3F9150_42C3_D817_41C1_DF90E5689B34.text = Do you know how to do things with the control system like add or modify trends, add points, modify programming, stuff like that? questionOption_52C3EFE9_423C_182D_41CB_F34D6A010DC4.text = Do you know what you are paying for electricity currently on average? questionOption_67B2B697_57CE_2CD0_41C4_FFB766B158B7.text = Document nameplate data. questionOption_67B2B697_57CE_2CD0_41C4_FFB766B158B7.text = Document nameplate data. questionOption_7C1103F3_57C5_E451_41C6_6D5ECDB01BF3.text = Document nameplate data. questionOption_7C1103F3_57C5_E451_41C6_6D5ECDB01BF3.text = Document nameplate data. questionOption_679BFCE6_57CE_1C73_41CB_F303FC5B3F28.text = Document the position of the discharge valve before moving it. questionOption_679BFCE6_57CE_1C73_41CB_F303FC5B3F28.text = Document the position of the discharge valve before moving it. questionOption_7C1AA0D0_57C5_E450_4179_A482D5E8170A.text = Document the position of the discharge valve. questionOption_7C1AA0D0_57C5_E450_4179_A482D5E8170A.text = Document the position of the discharge valve. questionOption_6EB16CA3_5742_1CF1_41CC_A6F54A3C4604.text = Document the position of the discharge valve. questionOption_6EB16CA3_5742_1CF1_41CC_A6F54A3C4604.text = Document the position of the discharge valve. questionOption_8B61C86C_57E2_BD42_41D4_53F77CBB8D3C.text = Formal As Found Test questionOption_8B61C86C_57E2_BD42_41D4_53F77CBB8D3C.text = Formal As Found Test questionOption_6EBFF005_5745_E3B1_41C8_82EB19F4F47E.text = Fully close the discharge valve. questionOption_6EBFF005_5745_E3B1_41C8_82EB19F4F47E.text = Fully close the discharge valve. questionOption_6795EF80_57CE_1CAF_41C1_B2DE499902FF.text = Fully open the discharge valve. questionOption_6795EF80_57CE_1CAF_41C1_B2DE499902FF.text = Fully open the discharge valve. questionOption_87B5A5CB_94AC_97D8_41C9_0973EE9A8309.text = Guest satisfaction data (records of guest complaints, in particular, compliants related to comfort). questionOption_5850E4CF_4307_F09D_41CF_76E2ED758693.text = Has anyone ever told you that you look a lot like one of the SketchUp components used to represent a person in a SketchUp model? questionOption_5EC959E9_1C04_1B08_41AA_B6A88552DD26.text = Head to the airport/home because you may have time for a nice glass of wine before your flight once you get through TSA since you finished ahead of time. questionOption_44CAD974_5672_E809_41C6_D7E6253158F6.text = If you repeat the test several times over the course of the time you are there, for a variable flow system, you may get a sense of the flow profile. questionOption_44CAD974_5672_E809_41C6_D7E6253158F6.text = If you repeat the test several times over the course of the time you are there, for a variable flow system, you may get a sense of the flow profile. questionOption_7D206C1A_43C2_680B_4195_4094C3416E8F.text = In reality, the plant ventilation AHU is connected to the system on the plant side of the isolation valves in the mains over the door but the sketch the ventilation AHU is connected on the building side of the isolation valves. questionOption_7D206C1A_43C2_680B_4195_4094C3416E8F.text = In reality, the plant ventilation AHU is connected to the system on the plant side of the isolation valves in the mains over the door but the sketch the ventilation AHU is connected on the building side of the isolation valves. questionOption_8B58F495_57E2_B5C2_41D4_2D898C8E78EE.text = Informal As Found Test questionOption_8B58F495_57E2_B5C2_41D4_2D898C8E78EE.text = Informal As Found Test questionOption_865F4840_94B4_BCC7_41E1_72947ECDCF92.text = Installation and Operation Manuals (I&OM) for all of the equipment in the facility. questionOption_88E0125E_9538_A1AD_41D5_4FC9C0BA8B2D.text = It is not possible to draw any conclusions from the information that is available. questionOption_827BD684_9170_D996_41AC_9D9C1E955394.text = It is not possible to estimate the load from this information. questionOption_611BDA45_43C2_6878_41CE_0974EC69AAA3.text = It matters quite a bit. questionOption_611BDA45_43C2_6878_41CE_0974EC69AAA3.text = It matters quite a bit. questionOption_44C3070C_5672_F819_41D0_626A77454937.text = It will save you a repeat visit to the site since it will provide you with all of the data you need to assess the pump. questionOption_44C3070C_5672_F819_41D0_626A77454937.text = It will save you a repeat visit to the site since it will provide you with all of the data you need to assess the pump. questionOption_610056B1_43C2_7819_41CB_318701C13AB0.text = It's just a nice touch, but no big deal if the tiny hole he made was not covered up. questionOption_610056B1_43C2_7819_41CB_318701C13AB0.text = It's just a nice touch, but no big deal if the tiny hole he made was not covered up. questionOption_5FCF6DCB_1C04_1B08_41A2_E4F60C9B9997.text = Make sure that everything has been returned to the operating state it was in when you started (throttled valve, lead chiller, etc.) unless the operating team prefers otherwise. questionOption_6F49E9A4_5742_24F7_41CB_440A4755EDA3.text = Make sure the chiller that is brought on line is stable before proceeding with the test. questionOption_6F49E9A4_5742_24F7_41CB_440A4755EDA3.text = Make sure the chiller that is brought on line is stable before proceeding with the test. questionOption_404F5D59_62B7_4D0B_41D0_052367D8B9D6.text = Maybe, I need to do a bit of research before I decide questionOption_5D7C6643_627C_B271_41C7_469F5DAEBC33.text = Maybe, I need to do a bit of research before I decide. questionOption_5DEF2946_6204_9E73_41CC_DB9E2DE1BDE1.text = Maybe, I need to do a bit of research before I decide. questionOption_531361D0_620C_8E6F_41D3_70B5488F750C.text = Maybe, I need to do a bit of research before I decide. questionOption_7A7ED2F6_6204_F213_41C1_2A6302D55C0A.text = Maybe, I need to do a bit of research before I decide. questionOption_2BF22DDE_60F5_FB41_4188_165953C3CBB6.text = Maybe, I need to do a bit of research before I decide. questionOption_5050683F_616A_393E_41CC_13751928A33B.text = Maybe, I need to do a bit of research before I decide. questionOption_4845084B_62BF_530F_41C2_3B884FA415C9.text = Maybe, I need to do a bit of research before I decide. questionOption_50F28FDC_616A_1742_41D4_3729444B3E07.text = Maybe, I need to do a bit of research before I decide. questionOption_5F6070FF_1C04_2908_41B1_5C2B32BB3CAE.text = Monitor the system for 30-60 minutes to make sure there were no adverse impacts as a result of the disruption the test caused. This is less crucial for a test that did not have an impact on flow or operating configuration of the system, like the as found tests, which only gathered data but did not change anything in the system other than perhaps the gauges. questionOption_94D83D0C_5621_B4C2_41A6_04AB702E919F.text = No questionOption_4F9B1E12_628A_CF19_41AF_778DFC78A658.text = No questionOption_4B80F149_62BB_750B_41B0_24EE6CEC55E7.text = No questionOption_94D83D0C_5621_B4C2_41A6_04AB702E919F.text = No questionOption_5D76F23A_627C_B213_41A8_1A09A9C5039A.text = No questionOption_70D9F507_5742_6DB0_41C6_8A6E0F13D68E.text = No questionOption_5DF5D679_6204_9210_41D1_DEE2755F662F.text = No questionOption_94D83D0C_5621_B4C2_41A6_04AB702E919F.text = No questionOption_7AB15C74_57C2_FC57_41B1_8BEBB37F6A1D.text = No questionOption_43EAD1D6_2C1C_EB18_41BD_9C735F114688.text = No questionOption_53217F6A_620C_B230_41D8_7A8F3519F417.text = No questionOption_7A74B05A_6204_8E13_419E_BCCE8A157EC8.text = No questionOption_70D9F507_5742_6DB0_41C6_8A6E0F13D68E.text = No questionOption_45D9D98C_343C_1B08_41C0_14DAF11C6734.text = No questionOption_70D9F507_5742_6DB0_41C6_8A6E0F13D68E.text = No questionOption_427765BA_3404_EB08_41B1_4DD44EE5A206.text = No questionOption_70D9F507_5742_6DB0_41C6_8A6E0F13D68E.text = No questionOption_427765BA_3404_EB08_41B1_4DD44EE5A206.text = No questionOption_7AB15C74_57C2_FC57_41B1_8BEBB37F6A1D.text = No questionOption_485765A0_62BF_5D39_419B_5B497D573722.text = No questionOption_49E01531_628A_BD1B_41AF_101475953BC4.text = No questionOption_28069B10_60F5_F8C2_41D3_FFE18DB1D888.text = No questionOption_94D83D0C_5621_B4C2_41A6_04AB702E919F.text = No questionOption_42E1169F_628B_DF07_41A6_4BDF1DD93658.text = No questionOption_405B8A8E_62B7_5709_41BA_8839FEB696FB.text = No questionOption_7AB15C74_57C2_FC57_41B1_8BEBB37F6A1D.text = No questionOption_5056B64E_616A_295E_41D0_EF2C9D900B0E.text = No questionOption_7AB15C74_57C2_FC57_41B1_8BEBB37F6A1D.text = No questionOption_50FA2D0E_616A_18DE_4152_B455E7BCFE8B.text = No questionOption_7E9C8374_4343_B81F_41CC_DD6045F96A89.text = No it does not. questionOption_7E9C8374_4343_B81F_41CC_DD6045F96A89.text = No it does not. questionOption_72B34BFC_574E_2457_41D2_27C03AD152E4.text = No thanks. questionOption_6D990E84_5743_FCB7_41C2_AF930AE5433A.text = No thanks. questionOption_79459742_57C2_6DB0_41D0_DD60626F6D6A.text = No thanks. questionOption_6D990E84_5743_FCB7_41C2_AF930AE5433A.text = No thanks. questionOption_79459742_57C2_6DB0_41D0_DD60626F6D6A.text = No thanks. questionOption_6DEC2103_5746_25B1_41CF_798D1570A42F.text = No thanks. questionOption_6123E5EF_5743_EC71_41B0_FAFBD58BF15B.text = No thanks. questionOption_628AB52E_5746_6DF3_41D0_B8307171C1D7.text = No thanks. questionOption_628AB52E_5746_6DF3_41D0_B8307171C1D7.text = No thanks. questionOption_628AB52E_5746_6DF3_41D0_B8307171C1D7.text = No thanks. questionOption_628AB52E_5746_6DF3_41D0_B8307171C1D7.text = No thanks. questionOption_6123E5EF_5743_EC71_41B0_FAFBD58BF15B.text = No thanks. questionOption_79459742_57C2_6DB0_41D0_DD60626F6D6A.text = No thanks. questionOption_6123E5EF_5743_EC71_41B0_FAFBD58BF15B.text = No thanks. questionOption_79459742_57C2_6DB0_41D0_DD60626F6D6A.text = No thanks. questionOption_72B34BFC_574E_2457_41D2_27C03AD152E4.text = No thanks. questionOption_72B34BFC_574E_2457_41D2_27C03AD152E4.text = No thanks. questionOption_72B34BFC_574E_2457_41D2_27C03AD152E4.text = No thanks. questionOption_6DEC2103_5746_25B1_41CF_798D1570A42F.text = No thanks. questionOption_6123E5EF_5743_EC71_41B0_FAFBD58BF15B.text = No thanks. questionOption_6DEC2103_5746_25B1_41CF_798D1570A42F.text = No thanks. questionOption_6D990E84_5743_FCB7_41C2_AF930AE5433A.text = No thanks. questionOption_6DEC2103_5746_25B1_41CF_798D1570A42F.text = No thanks. questionOption_265BFDD7_1CFC_1B18_41AD_C39C2A38807A.text = No thanks. questionOption_6D990E84_5743_FCB7_41C2_AF930AE5433A.text = No thanks. questionOption_EEF82E19_F0FD_5F66_41E2_2AC716EB2B4E.text = No, because there is no energy savings benefit associated with this obvious indicator. questionOption_EDEA0A5E_F0F3_679A_41ED_59C28E2BADE1.text = No, you would need to develop a functional testing strategy designed to capture the data needed. questionOption_86564106_94AD_8C48_41E0_A82431B2BF5A.text = One or more year's worth of occupancy data. questionOption_87669763_94AD_94C9_41D3_21325534D0C1.text = One or more years of utilty bills. questionOption_869B3CD8_91B3_A78A_41DD_EADC0337E0C9.text = Proceed with caution if you are sensitive to ruminative Diethyliodohexamine. questionOption_707FC050_4777_C3D0_41C6_8114ADFEE376.text = Pump Power and Energy Relationship questionOption_877EEA3B_91B4_E28E_41CE_E708E1089393.text = Release the preload on the main spurving bearings. questionOption_7C59B9EA_57C5_E473_419D_1BE200E45C0A.text = Remove the existing gauges and install your test gauge or differential pressure instrument on the existing gauge taps. questionOption_7C59B9EA_57C5_E473_419D_1BE200E45C0A.text = Remove the existing gauges and install your test gauge or differential pressure instrument on the existing gauge taps. questionOption_5F75ED49_1C04_1B08_41A3_DD455A78D628.text = Review your results to see if they seem reasonable. questionOption_44FB8D48_5672_E819_41CE_BE08D73CEAA4.text = Since the operating team has given you permission to explore the central plant on your own as long as you don't touch anything, it is a test you can accomplish because you are just reading the existing instruments. questionOption_44FB8D48_5672_E819_41CE_BE08D73CEAA4.text = Since the operating team has given you permission to explore the central plant on your own as long as you don't touch anything, it is a test you can accomplish because you are just reading the existing instruments. questionOption_52888626_44A1_2BAA_41B0_8AC1D7242CB6.text = Spherical questionOption_50097B71_44A1_19A6_4185_1CF586A9C0FB.text = Standard questionOption_40D58E16_340C_1919_41BC_FFCF84022B4B.text = The building is a tall building with CHW piping running to the highest level. The high pressures represent the static head in the system. questionOption_40D58E16_340C_1919_41BC_FFCF84022B4B.text = The building is a tall building with CHW piping running to the highest level. The high pressures represent the static head in the system. questionOption_40D58E16_340C_1919_41BC_FFCF84022B4B.text = The building is a tall building with CHW piping running to the highest level. The high pressures represent the static head in the system. questionOption_40D58E16_340C_1919_41BC_FFCF84022B4B.text = The building is a tall building with CHW piping running to the highest level. The high pressures represent the static head in the system. questionOption_5A0C6D1B_4342_A809_41B4_A8F1B12375C8.text = The chipped paint is a sign of poor maintenance. questionOption_8814A06E_953B_626A_41DB_21C6FBAC26B7.text = The condenser water flow rate is above the design target. questionOption_83F30A74_9605_9E4B_41A8_1348EE4C8A77.text = The condenser water flow rate is below the design target but not so low as to cause head pressure problems. questionOption_88CDC29D_9538_A6AE_4173_06420EBE8C63.text = The flow rate is at approximately the design flow rate. questionOption_40A2CA51_340C_1918_4160_9F6FC6A929F4.text = The other pumps in the system are creating the pressure. questionOption_40A2CA51_340C_1918_4160_9F6FC6A929F4.text = The other pumps in the system are creating the pressure. questionOption_40A2CA51_340C_1918_4160_9F6FC6A929F4.text = The other pumps in the system are creating the pressure. questionOption_40A2CA51_340C_1918_4160_9F6FC6A929F4.text = The other pumps in the system are creating the pressure. questionOption_7C5C8EA6_2C1C_1938_4185_00F8866FF60A.text = The pilot light for CHWP-1 is burned out. questionOption_5A0C7D1B_4342_A809_41C2_63E89BA101FC.text = The pump has been aligned in the field. questionOption_7D106587_43C2_78F9_41CF_7C20AB3ED43F.text = The return water main tees to serve CHWP-1 an then tees to serve CHWP-2 and then becomes the decoupling bypass, connecting to the chilled water supply main from the chillers to the distribution pumps. questionOption_7D106587_43C2_78F9_41CF_7C20AB3ED43F.text = The return water main tees to serve CHWP-1 an then tees to serve CHWP-2 and then becomes the decoupling bypass, connecting to the chilled water supply main from the chillers to the distribution pumps. questionOption_83A40C5A_5622_F547_41B0_24E797A3C828.text = The valve has been throttled, probably because the pump was oversized and delivering more than the design flow rate. While throttling probably saves some pump energy, more energy could be save by using a technique that moves the operating point down the system curve instead of up the impeller curve. questionOption_E31EA0D0_F073_A4E6_41DF_C294713CF19D.text = The valve should not have been insulated because you cannot see the direction of flow arrow that is probably cast into the body. questionOption_7D5E1DE9_43C2_6809_41C4_FAB1C8933997.text = The ventilation AHU chilled water control valve is in the return line in reality but the sketch shows it in the supply line. questionOption_7D5E1DE9_43C2_6809_41C4_FAB1C8933997.text = The ventilation AHU chilled water control valve is in the return line in reality but the sketch shows it in the supply line. questionOption_7C4EC1D7_2C1C_2B18_41BE_9D82E436AE97.text = There are wires without conduit protection coming out of the starters. questionOption_E47F7612_5267_94C7_41C9_7469434BDEBB.text = They have five loggers deployed on the chilled water system and they do not have all of the data they need. questionOption_E47F7612_5267_94C7_41C9_7469434BDEBB.text = They have five loggers deployed on the chilled water system and they do not have all of the data they need. questionOption_E46E4976_5267_9F4E_41C3_E079CC8077AA.text = They have five loggers deployed on the chilled water system which should give them everything they need to know. questionOption_E46E4976_5267_9F4E_41C3_E079CC8077AA.text = They have five loggers deployed on the chilled water system which should give them everything they need to know. questionOption_E410DF62_5267_9347_41AF_0EB467281738.text = They have six loggers deployed on the chilled water system and that provides all of the data they need. questionOption_E410DF62_5267_9347_41AF_0EB467281738.text = They have six loggers deployed on the chilled water system and that provides all of the data they need. questionOption_E463FC74_5267_9542_41D1_5D105A32ED1D.text = They have two loggers deployed on the chilled water system and they do not have all of the data they need. questionOption_E463FC74_5267_9542_41D1_5D105A32ED1D.text = They have two loggers deployed on the chilled water system and they do not have all of the data they need. questionOption_E4043293_5266_6DC6_41D1_DBD202BEA93E.text = They have two loggers deployed on the chilled water system which should give them everything they need to know questionOption_E4043293_5266_6DC6_41D1_DBD202BEA93E.text = They have two loggers deployed on the chilled water system which should give them everything they need to know questionOption_E36C009B_F074_E49B_41D6_40BFB4840A38.text = This valve can be used to throttle flow, isolate the pump and acts as a check valve and installing it like this on the suction side of the pump is a mistake because it could cause cavitation. questionOption_E30A9A91_F073_6767_41D6_CB20E365D082.text = This valve can be used to throttle flow, isolate the pump and acts as a check valve. But if the regular repeated action of the check valve wears out the valve set, there is no way to isolate and repair the seat since that same valve seat is used for the isolation function. Thus, the repair would require a system outage if there is not an independent isolation valve provided. questionOption_86163453_94AC_B4C9_41E0_B34BF5E54FA9.text = Trend data for all the systems in the facility. questionOption_86BF865F_91B4_6286_41D2_3DF1570B1B80.text = Use a meter to verify that opening the disconnect switch has isolated the VSD from the power source. questionOption_53225B2F_423C_F825_41C7_C0053BC8BB15.text = We understand that there are some woodchucks on your family's farm and were wondering if you had ever tried to figure out how much wood they could chuck? questionOption_598AE7E6_4305_508F_41C0_CF0B3329843D.text = What are you paying for electricity on average? questionOption_539D7D00_4251_9BE6_41CD_E2A8383C501A.text = What is APE? questionOption_53B13DA3_4270_7A2A_41C4_812DF146616E.text = Who was your favorite Beatle? questionOption_8B8E9C42_57E2_B547_41D0_13542C20971A.text = Wide Open Test questionOption_8B8E9C42_57E2_B547_41D0_13542C20971A.text = Wide Open Test questionOption_7D18C876_43C2_681B_41CA_69C21DFF0BC9.text = With the plant piped the way it is, at part load - say 75% of plant rated capacity - with two chillers running (when there is reverse flow in the bypass), both chillers will see an entering water temperature that is a blend of the return flow and the bypass flow and as a result will share the load equally assuming they are set to deliver the same leaving water temperature. questionOption_7D18C876_43C2_681B_41CA_69C21DFF0BC9.text = With the plant piped the way it is, at part load - say 75% of plant rated capacity - with two chillers running (when there is reverse flow in the bypass), both chillers will see an entering water temperature that is a blend of the return flow and the bypass flow and as a result will share the load equally assuming they are set to deliver the same leaving water temperature. questionOption_7BB1FB36_57C2_25D3_41CA_B2206FD27301.text = Yes questionOption_459B55E7_343C_EB38_41B6_581937684DDF.text = Yes questionOption_482812C3_62BF_577F_41C3_3D1D2F9338AC.text = Yes questionOption_7C7D40FB_2C1C_E908_41C0_993882584076.text = Yes questionOption_4266D279_3404_E908_41C0_C4609AAF16BF.text = Yes questionOption_4980B1BE_628A_B508_41D6_449DC97BF1F0.text = Yes questionOption_42CE02DA_628B_D709_41BF_A8BE71F957CB.text = Yes questionOption_705D0119_5742_25D0_41BB_532965A36FFD.text = Yes questionOption_502472FA_616A_2941_41B8_8C420EA50640.text = Yes questionOption_50A9C97A_616A_1B41_41CB_2BDF882B91F6.text = Yes questionOption_705D0119_5742_25D0_41BB_532965A36FFD.text = Yes questionOption_7BB1FB36_57C2_25D3_41CA_B2206FD27301.text = Yes questionOption_4B9EFE49_62BB_4F0B_4189_AA0E47276048.text = Yes questionOption_4266D279_3404_E908_41C0_C4609AAF16BF.text = Yes questionOption_4020079F_62B7_5D07_41D5_2913A835A4F2.text = Yes questionOption_4FBD1941_628A_D57B_41BA_AF5D8BD8E82A.text = Yes questionOption_94CF19C9_5621_BF45_41B1_6BE8DAD4DBCC.text = Yes questionOption_705D0119_5742_25D0_41BB_532965A36FFD.text = Yes questionOption_5D693E95_627C_9211_41C0_BA5A46567D11.text = Yes questionOption_7BB1FB36_57C2_25D3_41CA_B2206FD27301.text = Yes questionOption_705D0119_5742_25D0_41BB_532965A36FFD.text = Yes questionOption_7A1A5D2A_6204_9633_41BF_DF214D283181.text = Yes questionOption_281407AD_60F5_F7C2_415C_F72CF6BC3A30.text = Yes questionOption_5D83F2A3_6204_9231_41C2_9952B2ADFE18.text = Yes questionOption_7BB1FB36_57C2_25D3_41CA_B2206FD27301.text = Yes questionOption_94CF19C9_5621_BF45_41B1_6BE8DAD4DBCC.text = Yes questionOption_94CF19C9_5621_BF45_41B1_6BE8DAD4DBCC.text = Yes questionOption_52D2BB0C_620C_B3F7_41B7_ECBB0C7F9011.text = Yes questionOption_94CF19C9_5621_BF45_41B1_6BE8DAD4DBCC.text = Yes questionOption_89DF3A1A_57E2_9CC7_41C7_65A8487B17C1.text = Yes I do. questionOption_7EBB2EE3_4343_A838_41CA_2EB1A3CC4747.text = Yes it does. questionOption_7EBB2EE3_4343_A838_41CA_2EB1A3CC4747.text = Yes it does. questionOption_7224B360_574E_E46F_41A6_40235FF11226.text = Yes please. questionOption_61DDB25A_5743_E453_41D4_59FCB7610718.text = Yes please. questionOption_6D854C62_5746_3C70_41D5_9287B43CC0E6.text = Yes please. questionOption_6D854C62_5746_3C70_41D5_9287B43CC0E6.text = Yes please. questionOption_6D854C62_5746_3C70_41D5_9287B43CC0E6.text = Yes please. questionOption_6E64BACF_5743_E4B1_41C9_321E8974B421.text = Yes please. questionOption_7224B360_574E_E46F_41A6_40235FF11226.text = Yes please. questionOption_7224B360_574E_E46F_41A6_40235FF11226.text = Yes please. questionOption_6D854C62_5746_3C70_41D5_9287B43CC0E6.text = Yes please. questionOption_6E64BACF_5743_E4B1_41C9_321E8974B421.text = Yes please. questionOption_7951B3FF_57C2_6450_41CF_80B283491C78.text = Yes please. questionOption_6E64BACF_5743_E4B1_41C9_321E8974B421.text = Yes please. questionOption_61DDB25A_5743_E453_41D4_59FCB7610718.text = Yes please. questionOption_7951B3FF_57C2_6450_41CF_80B283491C78.text = Yes please. questionOption_62B3F169_5746_6471_41D4_27C8A2ED9672.text = Yes please. questionOption_62B3F169_5746_6471_41D4_27C8A2ED9672.text = Yes please. questionOption_7224B360_574E_E46F_41A6_40235FF11226.text = Yes please. questionOption_7951B3FF_57C2_6450_41CF_80B283491C78.text = Yes please. questionOption_61DDB25A_5743_E453_41D4_59FCB7610718.text = Yes please. questionOption_6E64BACF_5743_E4B1_41C9_321E8974B421.text = Yes please. questionOption_61DDB25A_5743_E453_41D4_59FCB7610718.text = Yes please. questionOption_62B3F169_5746_6471_41D4_27C8A2ED9672.text = Yes please. questionOption_62B3F169_5746_6471_41D4_27C8A2ED9672.text = Yes please. questionOption_7951B3FF_57C2_6450_41CF_80B283491C78.text = Yes please. questionOption_82689B51_562F_B345_41BD_DBB9F514C686.text = Yes, it is possible to do that. questionOption_444C214B_2BFC_6B08_41C1_B59398F5949D.text = You could go over and see if you could hear the pump running. questionOption_444C214B_2BFC_6B08_41C1_B59398F5949D.text = You could go over and see if you could hear the pump running. questionOption_44C3AEEA_2BFC_1908_41B0_E5B145A336BE.text = You could look at the gauges to see if the pump is creating any pressure. questionOption_44C3AEEA_2BFC_1908_41B0_E5B145A336BE.text = You could look at the gauges to see if the pump is creating any pressure. questionOption_44967506_2BFC_68FB_417C_ED69005F0957.text = You could look to see if you could tell if the pump shaft or motor were spinning by looking for motion questionOption_44967506_2BFC_68FB_417C_ED69005F0957.text = You could look to see if you could tell if the pump shaft or motor were spinning by looking for motion questionOption_44B16BB7_2BFC_1F18_41B6_7D98F009D045.text = You could touch the motor to see if its hot. questionOption_44B16BB7_2BFC_1F18_41B6_7D98F009D045.text = You could touch the motor to see if its hot. questionOption_44A7D854_2BFC_1918_41BF_F0B82CB988CA.text = You could touch the pump or motor to see if its vibrating. questionOption_44A7D854_2BFC_1918_41BF_F0B82CB988CA.text = You could touch the pump or motor to see if its vibrating. ### Question question_5B05FC9D_1C0C_3908_41B2_6899C674DF67.title = After you complete testing, what steps should you take? question_84B7E606_9173_D893_41E0_A5E0FF4B75A5.title = Based on the instrumentation on the evaporator piping at the chiller along with an assessment of the evaporator pump and its nameplate data and/or information from the equipment schedule, what is the load on the chiller currently? \ \ (You may need to visit the engineering office to obtain a copy of the drawing with the equipment schedule and you may need to go over and take a look at the evaporator pumps). question_E2E78C6F_F075_A3BA_41DE_46F0D4CD90E1.title = Congratulations! You just earned a point for noticing an obvious indicator of opportunity. \ \ You can score additional points by identifying the specific opportunity(s) this clue represents from the list below. Select all that you think apply. Right answers increase your score. question_411778C8_343C_3908_41A7_AC300E8239D9.title = Correct! \ \ You would expect selector switches to be in "Auto" to allow schedules and other automation to work and manage the operation of the pump. \ \ Having discovered this, should you place the switch back in "Auto" question_7DBF5C0C_2C04_1908_41B6_63234A518145.title = Do you see an opportunity here? question_5D64FA03_1C04_18F8_4199_71F1A01F9884.title = Do you want to test this pump? question_72025DA1_5742_1CF0_41C9_9F70B613A730.title = Do you want to try again or a different pump test? question_72025DA1_5742_1CF0_41C9_9F70B613A730.title = Do you want to try again or a different pump test? question_72025DA1_5742_1CF0_41C9_9F70B613A730.title = Do you want to try again or a different pump test? question_72025DA1_5742_1CF0_41C9_9F70B613A730.title = Do you want to try again or a different pump test? question_61E973AF_574E_24F0_41D3_2868E1625414.title = Do you want to try again or try a different pump test? question_6CB996FF_5742_2C51_41C0_0900516642CF.title = Do you want to try again or try a different pump test? question_6CB996FF_5742_2C51_41C0_0900516642CF.title = Do you want to try again or try a different pump test? question_6CB996FF_5742_2C51_41C0_0900516642CF.title = Do you want to try again or try a different pump test? question_61E973AF_574E_24F0_41D3_2868E1625414.title = Do you want to try again or try a different pump test? question_6CB996FF_5742_2C51_41C0_0900516642CF.title = Do you want to try again or try a different pump test? question_61E973AF_574E_24F0_41D3_2868E1625414.title = Do you want to try again or try a different pump test? question_61E973AF_574E_24F0_41D3_2868E1625414.title = Do you want to try again or try a different pump test? question_79E5EB44_57C2_25B7_41CB_64CCB0035118.title = Do you want to try again or try a different pump test? question_79E5EB44_57C2_25B7_41CB_64CCB0035118.title = Do you want to try again or try a different pump test? question_79E5EB44_57C2_25B7_41CB_64CCB0035118.title = Do you want to try again or try a different pump test? question_79E5EB44_57C2_25B7_41CB_64CCB0035118.title = Do you want to try again or try a different pump test? question_7BABABA8_57C6_E4FF_418B_0050718C2D76.title = Do you want to try another pump test? question_71DAD22E_5742_27F0_41A6_F948348F6E04.title = Do you want to try another pump test? question_71DAD22E_5742_27F0_41A6_F948348F6E04.title = Do you want to try another pump test? question_6C4810A3_5742_E4F1_41B9_BEA01C1C3532.title = Do you want to try another pump test? question_6C4810A3_5742_E4F1_41B9_BEA01C1C3532.title = Do you want to try another pump test? question_6C4810A3_5742_E4F1_41B9_BEA01C1C3532.title = Do you want to try another pump test? question_7BABABA8_57C6_E4FF_418B_0050718C2D76.title = Do you want to try another pump test? question_7BABABA8_57C6_E4FF_418B_0050718C2D76.title = Do you want to try another pump test? question_62190C79_5746_3C51_41C1_69F2D3FAF10C.title = Do you want to try another pump test? question_62190C79_5746_3C51_41C1_69F2D3FAF10C.title = Do you want to try another pump test? question_71DAD22E_5742_27F0_41A6_F948348F6E04.title = Do you want to try another pump test? question_62190C79_5746_3C51_41C1_69F2D3FAF10C.title = Do you want to try another pump test? question_62190C79_5746_3C51_41C1_69F2D3FAF10C.title = Do you want to try another pump test? question_7BABABA8_57C6_E4FF_418B_0050718C2D76.title = Do you want to try another pump test? question_71DAD22E_5742_27F0_41A6_F948348F6E04.title = Do you want to try another pump test? question_6C4810A3_5742_E4F1_41B9_BEA01C1C3532.title = Do you want to try another pump test? question_606C0FE7_43C6_6838_41B5_0D4B4F46D1AD.title = Does it matter that Joe De Nuguy used HVAC tape to cover up the hole he punched in the insulation from an operational and efficiency standpoint. Or is it just a "nice touch", showing a sign of professionalism but not at all necessary? question_606C0FE7_43C6_6838_41B5_0D4B4F46D1AD.title = Does it matter that Joe De Nuguy used HVAC tape to cover up the hole he punched in the insulation from an operational and efficiency standpoint. Or is it just a "nice touch", showing a sign of professionalism but not at all necessary? question_7D387961_4346_6839_41CD_044EBDF09BE5.title = Does the piping as it is actually installed in the central plant match the sketch Harley developed from the schematic on the drawings? question_7D387961_4346_6839_41CD_044EBDF09BE5.title = Does the piping as it is actually installed in the central plant match the sketch Harley developed from the schematic on the drawings? question_758C9EBD_4D42_6808_41D1_3FE917B5A25C.title = Given Harley's system diagram sketch (you will have to ask him for it if you haven't already), the water side load relationship, and the principle of conservation of mass and energy, what is the "trick" that Noreen is using to come up with a load and flow profile using data loggers: question_758C9EBD_4D42_6808_41D1_3FE917B5A25C.title = Given Harley's system diagram sketch (you will have to ask him for it if you haven't already), the water side load relationship, and the principle of conservation of mass and energy, what is the "trick" that Noreen is using to come up with a load and flow profile using data loggers: question_FA660788_5223_93C2_41C8_33BC82ACDA61.title = Given Harley's system diagram sketch (you will have to ask him for it if you haven't already), the water side load relationship, and the principle of conservation of mass and energy, what is the "trick" that Noreen is using to come up with a load and flow profile using data loggers? question_FA660788_5223_93C2_41C8_33BC82ACDA61.title = Given Harley's system diagram sketch (you will have to ask him for it if you haven't already), the water side load relationship, and the principle of conservation of mass and energy, what is the "trick" that Noreen is using to come up with a load and flow profile using data loggers? question_40106916_2C04_3B18_41BE_E24EECBD2ED1.title = How could you tell if CHWP-1 was running? \ \ (Select all that apply) question_40106916_2C04_3B18_41BE_E24EECBD2ED1.title = How could you tell if CHWP-1 was running? \ \ (Select all that apply) question_47D44B8D_340C_1F08_41C0_398A43556E82.title = If the pump is off, why are the pressure so high? question_47D44B8D_340C_1F08_41C0_398A43556E82.title = If the pump is off, why are the pressure so high? question_47D44B8D_340C_1F08_41C0_398A43556E82.title = If the pump is off, why are the pressure so high? question_47D44B8D_340C_1F08_41C0_398A43556E82.title = If the pump is off, why are the pressure so high? question_EE9476BA_F0D5_ECA5_41E3_0BF213201CE8.title = If this obvious indicator has energy savings potential associated with it, is there a way you could use field clues and other resources available to you in the field to ball-park estimate the savings potential? question_875F8004_91B4_BE7A_41DE_B7714374EA3B.title = If you needed to open up the VFD enclosure to inspect or service the components inside, what precautions should you take? question_27035AD1_60FA_3942_4165_1EF73982B82C.title = Is there an issue or opportunity here? question_75C56900_6205_7FEF_41BE_959677FD688C.title = Is there an issue or opportunity here? question_4B23DA18_62BF_F70A_41AF_425FE18E5EEC.title = Is there an issue or opportunity here? question_4D7653EF_620D_B231_41C2_3AF359990438.title = Is there an issue or opportunity here? question_4B054EC6_62B5_4F79_41A3_CDC4A0311584.title = Is there an issue or opportunity here? question_4F1B843B_628B_730F_41C9_6F2B2412DC6B.title = Is there an issue or opportunity here? question_509A4716_6176_28CE_41C2_F2FAC5A162B5.title = Is there an issue or opportunity here? question_5D5AF417_627C_9611_41BE_49EBE5A285DD.title = Is there an issue or opportunity here? question_5DA22987_6205_7EF1_41C0_B79DA9E343B2.title = Is there an issue or opportunity here? question_4AF1A78E_62BA_DD09_41D0_455EDDBF4017.title = Is there an issue or opportunity here? question_558B54FF_616B_E93F_41D2_0C6C366D5B8D.title = Is there an issue or opportunity here? question_41340A19_62B6_F70B_41CB_B7C0CBD5E625.title = Is there an issue or opportunity here? question_421F45FE_628B_7D08_41D4_9B21E1C55EB7.title = Is there an issue or opportunity here? question_E998285F_5262_FD7E_41C5_309CC7007CE1.title = That's Right! \ \ Knowing the trick, you should be able to identify the data points required to pull it off. If you explore the plant, you should be able to find the data loggers that Noreen and Harley deployed on the chilled water system and equipment to do the "trick". Based on your observations how many loggers are deployed and, do they have all of the data they will need? \ \ question_E998285F_5262_FD7E_41C5_309CC7007CE1.title = That's Right! \ \ Knowing the trick, you should be able to identify the data points required to pull it off. If you explore the plant, you should be able to find the data loggers that Noreen and Harley deployed on the chilled water system and equipment to do the "trick". Based on your observations how many loggers are deployed and, do they have all of the data they will need? \ \ question_064D899C_4343_A80F_41A9_3147F798EEDA.title = That's right, and the differences may be important in terms of how the plant operates. \ \ Which items on the list below are differences that you observed? Select all that apply. question_064D899C_4343_A80F_41A9_3147F798EEDA.title = That's right, and the differences may be important in terms of how the plant operates. \ \ Which items on the list below are differences that you observed? Select all that apply. question_5A062D1A_4342_A80B_4184_1206D593FEA1.title = There is a clue about an O&M issue visible here. What is it? question_4457AF0A_5671_A818_41C5_DB67CC551D64.title = To get your test data, identify the items on the list below that are the benefits of performing and informal as found pump test while you are on site scoping. \ \ (Select all that apply) \ \ question_4457AF0A_5671_A818_41C5_DB67CC551D64.title = To get your test data, identify the items on the list below that are the benefits of performing and informal as found pump test while you are on site scoping. \ \ (Select all that apply) \ \ question_6F87E33B_5742_65D1_4171_EE4F82351575.title = To get your test data, identify the items on the list below that should be done prior to performing your dead head test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. question_6F87E33B_5742_65D1_4171_EE4F82351575.title = To get your test data, identify the items on the list below that should be done prior to performing your dead head test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. question_7C81ABF9_57CE_6451_41CE_63D52000821D.title = To get your test data, identify the items on the list below that should be done prior to performing your formal as found pump test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. \ \ (Select all that apply) \ \ question_7C81ABF9_57CE_6451_41CE_63D52000821D.title = To get your test data, identify the items on the list below that should be done prior to performing your formal as found pump test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. \ \ (Select all that apply) \ \ question_67F7CAA3_57CE_64F1_41D4_F37F4B9201CF.title = To get your test data, identify the items on the list below that should be done prior to performing your wide open pump test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. \ \ (Select all that apply) question_67F7CAA3_57CE_64F1_41D4_F37F4B9201CF.title = To get your test data, identify the items on the list below that should be done prior to performing your wide open pump test. \ \ Think carefully; some of them are Almost, but Not Quite correct. The information provided in the information window about functional testing may help you think this part through. \ \ (Select all that apply) question_87BD04EA_94D4_F5DB_41B7_4693C466C4AC.title = Ultimately, you will likley need all of the items on thi list below as you work on the EBCx project. But which five items would be the most important and practical to request in advance of your initial site visit (especially if your project was energy efficiency driven) to help you focus your scoping effort and maximize the benefit of your field time? question_88B842CF_9538_E6AB_41A1_35A7E7F86721.title = What does the information provided by the instrumentation on Chiller 2's condenser water connections tell you about the condenser water flow when you compare it with the current operating condition and information on the equipment schedule? (You may need to visit the Engineering Office to get a copy of the equipment schedule.) question_C91F70AE_DD65_4502_41D2_7778F6297338.title = What is this device? question_867AEA85_57E1_BDC2_4171_1CBDE3AE3B45.title = What type of pump test would you like to do? question_867AEA85_57E1_BDC2_4171_1CBDE3AE3B45.title = What type of pump test would you like to do? question_E763CCF0_F581_B52B_41E8_A93887663296.title = What was your Informal As Found Test score? question_D2D63691_F6C9_A3BA_41E0_35BA60976324.title = What was your Dead Head test score? question_D50F966A_F6CF_A36E_41EC_30A83F8DDC42.title = What was your Wide Open Test score? question_764403BA_4776_4550_41C8_13C6D11301B9.title = What website would you like to view? \ \ (Close the question box to see the answer once you have selected a question? question_41B55EAE_3404_7908_418F_CD4539C65A37.title = When you finally return the switch to Auto, are you guaranteed that energy will immediately be saved? question_41B55EAE_3404_7908_418F_CD4539C65A37.title = When you finally return the switch to Auto, are you guaranteed that energy will immediately be saved? question_83AA68CB_5226_FD46_41B5_9E12F5548E68.title = When you were looking for the data loggers, did you discover a resource that Harley and Noreen do not realize they have? question_83AA68CB_5226_FD46_41B5_9E12F5548E68.title = When you were looking for the data loggers, did you discover a resource that Harley and Noreen do not realize they have? question_83AA68CB_5226_FD46_41B5_9E12F5548E68.title = When you were looking for the data loggers, did you discover a resource that Harley and Noreen do not realize they have? question_83AA68CB_5226_FD46_41B5_9E12F5548E68.title = When you were looking for the data loggers, did you discover a resource that Harley and Noreen do not realize they have? question_7D57CD28_2C1C_7B08_41AF_F9F0FC1BA4ED.title = Which of these opportunities exists? question_5114385A_44A7_679A_41CB_2ADCBED7BB32.title = Would you like to view a standard panorama or a spherical panorama? \ \ (Close the question box to see the answer once you have selected a question.) question_52E40E64_423C_3824_41C6_045ED91D8562.title = You can ask Harley any or all of the following questions. \ \ (Close the question box to see the answer once you have selected a question.) question_504E9D5E_4270_9A1A_41B0_5327734B7837.title = You can ask Kathy any or all of the following questions. \ \ (Close the question box to see the answer once you have selected a question.) \ \ question_5979C253_4305_D384_41AA_C97E189D4A7B.title = You can ask Noreen any or all of the following questions. \ \ (Close the question box to see the answer once you have selected a question.) ### Question Screen quizQuestion_46A39EEF_50ED_5EF8_4197_3746E25901FA.ok = OK ### Report Screen quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.title = - SCORE - quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.completion = Completed quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.questionsCorrect = Correct quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.downloadCSV = Download .csv quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.questionsIncorrect = Incorrect quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.items = Items Found quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.questions = Questions quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.repeat = Repeat quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.submitToLMS = Submit quizScore_46A5BEEF_50ED_5EF8_41D1_7C556F53EED1.elapsedTime = Time ### Score Name score5.label = Dead Head score1.label = Findings score3.label = Formal As Found score2.label = Informal As Found Test score7.label = Questions Correct score6.label = Scratch score4.label = Wide Open ### Timeout Screen quizTimeout_46A39EEF_50ED_5EF8_41AF_879A7AF2D5CF.title = - TIMEOUT - quizTimeout_46A39EEF_50ED_5EF8_41AF_879A7AF2D5CF.repeat = Repeat quizTimeout_46A39EEF_50ED_5EF8_41AF_879A7AF2D5CF.score = View Score ## Hotspot ### Text HotspotPanoramaOverlayTextImage_5D389C4C_430B_B79C_41C0_4B7C64DD38DC.text = Click Here to Ask Noreen Questions HotspotPanoramaOverlayTextImage_52F816F3_4234_283D_41CA_4D1F633A11E4.text = Click here if you have a question for Harley HotspotPanoramaOverlayTextImage_53301B19_4270_9FE7_41C8_C761C7095555.text = Click here to ask Kathy questions. FlatHotspotPanoramaOverlayTextImage_4F58C76B_5B21_8826_41C2_D8F0151C3073.text = Point A on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4A3021B6_5B20_882E_41CF_63DBB371DF4F.text = Point A on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_48C12130_5B20_8821_41C3_9839E33868EF.text = Point B On The System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4F2C379C_5B23_88E2_41BB_FF028C831D27.text = Point B on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4FDB78C6_5BE3_F861_41D4_8B73C8B1BAD8.text = Point B on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4F260367_5BE1_882E_41CD_55F229860602.text = Point C on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4F61865B_5B20_8867_41D6_A1B2DB039932.text = Point C on the System Diagram Sketch FlatHotspotPanoramaOverlayTextImage_4FEBE4E9_5BE0_8822_41D5_5DB13008DC48.text = Point D on the System Diagram Sketch HotspotPanoramaOverlayTextImage_54B1BC6B_4304_D785_41B1_2DF05BFA50C7.text = Sure, just click on the monitor to use my computer! ### Tooltip HotspotMapOverlayArea_5BE31B33_42C6_6819_41A5_8D9E764AA379.toolTip = Allows you to look around at the chilled water pumps. HotspotPanoramaOverlayArea_5A6F6C23_44A7_3FAA_41D0_C4336DA5DC51.toolTip = Get some drawings for the central plant HotspotPanoramaOverlayArea_5B002949_44A1_39E6_41B7_1025B4719CCE.toolTip = Get sp,e drawings for the Ball Room AHU HotspotPanoramaOverlayArea_784568B4_472A_4350_41B8_3F18C7827033.toolTip = Head back out to the plant. HotspotMapOverlayArea_52EB62FA_42CD_F80B_41B7_7A78FB49C2F1.toolTip = Looking around standing between the chillers, standard vs. 360° perspective. HotspotMapOverlayArea_55BD0241_42C2_D879_41B8_3C702482A26C.toolTip = Starting Point Standing Inside the Door HotspotPanoramaOverlayArea_E3CEE596_F0F6_206F_41D4_9E090872E01D.toolTip = Use Kathy's computer to search on line for stuff (or just use your's or your phone). 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APE is the Hijend Hotel system Advanced Program for Engineering. Its a program that is targeted at engineering directors, chiefs, and engineering technicians and tries to teach them how to think more holistically about their facility's in particular about how they use energy and resources. It also helps them develop their leadership, presentation, and bussiness skills.
You have to be recommended by an area director to attend, so it's a pretty cool "feather in your cap" to go. I sure hope I can go someday because Noreen really raves about it.
htmlText_7B071D0E_4342_680B_41C5_466C3FA222FC.html =
Actually, there are some differences. Go take a closer look and in particular, pay attention to the order of connection.
For instance, where does the plant ventilation AHU connect to the chilled water mains relative to the point where they enter the room and the service valves that are located there?
htmlText_7B071D0E_4342_680B_41C5_466C3FA222FC.html =
Actually, there are some differences. Go take a closer look and in particular, pay attention to the order of connection.
For instance, where does the plant ventilation AHU connect to the chilled water mains relative to the point where they enter the room and the service valves that are located there?
htmlText_9BD997D2_5622_B346_41BA_BCD1A6284BE9.html =
Actually, there is. Give this question another shot to learn a bit more. Try looking around carefully from the top of the ladder near the expansion tank and make up water manifold.
htmlText_9BD997D2_5622_B346_41BA_BCD1A6284BE9.html =
Actually, there is. Give this question another shot to learn a bit more. Try looking around carefully from the top of the ladder near the expansion tank and make up water manifold.
htmlText_9BD997D2_5622_B346_41BA_BCD1A6284BE9.html =
Actually, there is. Give this question another shot to learn a bit more. Try looking around carefully from the top of the ladder near the expansion tank and make up water manifold.
htmlText_9BD997D2_5622_B346_41BA_BCD1A6284BE9.html =
Actually, there is. Give this question another shot to learn a bit more. Try looking around carefully from the top of the ladder near the expansion tank and make up water manifold.
htmlText_6C918471_5746_2C51_41BF_32B7C1552AA4.html =
All of the answers were correct except for the last one.
It's kind of like the game "Simon Says".
You should always have the operating team make changes like opening and closing valves, starting and stopping machinery, etc. unless they have specifically told you that you can do it. So the correct answer could have been "Ask the operating team to fully close the discharge valve" or "Ask the operating team if it is O.K. for you to fully close the discharge valve".
htmlText_6C918471_5746_2C51_41BF_32B7C1552AA4.html =
All of the answers were correct except for the last one.
It's kind of like the game "Simon Says".
You should always have the operating team make changes like opening and closing valves, starting and stopping machinery, etc. unless they have specifically told you that you can do it. So the correct answer could have been "Ask the operating team to fully close the discharge valve" or "Ask the operating team if it is O.K. for you to fully close the discharge valve".
htmlText_622A9270_5742_246F_41B3_8B10626D32CE.html =
All of the items were correct answers other than the last one.
The last one is incorrect because you should always have the operating team make changes like opening and closing valves, starting and stopping machinery, etc. unless they have specifically told you that you can do it. So the correct answer could have been "Ask the operating team to fully open the discharge valve" or "Ask the operating team if it is O.K. for you to fully open the discharge valve"
htmlText_622A9270_5742_246F_41B3_8B10626D32CE.html =
All of the items were correct answers other than the last one.
The last one is incorrect because you should always have the operating team make changes like opening and closing valves, starting and stopping machinery, etc. unless they have specifically told you that you can do it. So the correct answer could have been "Ask the operating team to fully open the discharge valve" or "Ask the operating team if it is O.K. for you to fully open the discharge valve"
htmlText_7623C65D_5742_2C51_41BF_FFC8F0BDBF8F.html =
All of the reasons given as being a benefit for doing the informal test were correct except for the 4th item, "It will save you a repeat visit to the site since it will provide you with all of the data you need to assess the pump".
If you really decide to modify the pump, you really will need to do a more formal test that:
Uses a single, high accuracy gauge or differential pressure meter to eliminate gauge error.
Takes one or more pieces of data like pump amperage or motor slip to cross-check the result.
Documents the impeller size with a dead head test if possible.
Documents the wide open operating point.
htmlText_7623C65D_5742_2C51_41BF_FFC8F0BDBF8F.html =
All of the reasons given as being a benefit for doing the informal test were correct except for the 4th item, "It will save you a repeat visit to the site since it will provide you with all of the data you need to assess the pump".
If you really decide to modify the pump, you really will need to do a more formal test that:
Uses a single, high accuracy gauge or differential pressure meter to eliminate gauge error.
Takes one or more pieces of data like pump amperage or motor slip to cross-check the result.
Documents the impeller size with a dead head test if possible.
Documents the wide open operating point.
htmlText_404553EA_340D_EF08_41A5_410EFCADCFBE.html =
All of these are legitimate ways to see if the pump is running. However, in a noisy mechanical room, it is sometimes difficult or impossible to tell if any given piece of equipment is contributing to the sound or not unless you happen to have a mechanic's stethoscope.
And without a strobe, it can be difficult to tell if something is spinning when it is spinning at a high speed like a pump would be.
Vibration can be a clue, but it is not impossible for something to feel like it is vibrating due to vibration being transmitted to it from other machinery.
As long as the pump has been running for a while and the location is no extremely cold, in all likelihood, the motor would feel hot.
And assuming there is nothing between the gauge tap location and the pump (for example the discharge gauge is after the check valve), then if the pump is off, both gauges will show the same or nearly the same value.
htmlText_404553EA_340D_EF08_41A5_410EFCADCFBE.html =
All of these are legitimate ways to see if the pump is running. However, in a noisy mechanical room, it is sometimes difficult or impossible to tell if any given piece of equipment is contributing to the sound or not unless you happen to have a mechanic's stethoscope.
And without a strobe, it can be difficult to tell if something is spinning when it is spinning at a high speed like a pump would be.
Vibration can be a clue, but it is not impossible for something to feel like it is vibrating due to vibration being transmitted to it from other machinery.
As long as the pump has been running for a while and the location is no extremely cold, in all likelihood, the motor would feel hot.
And assuming there is nothing between the gauge tap location and the pump (for example the discharge gauge is after the check valve), then if the pump is off, both gauges will show the same or nearly the same value.
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By the nature of the design of this system (variable flow primary/secondary), these pumps are decoupled from the operation of the other pumps and are not meaningfully affected by the pressure and flow they produce.
htmlText_439B26FF_3404_6908_41B9_F83C6294179B.html =
By the nature of the design of this system (variable flow primary/secondary), these pumps are decoupled from the operation of the other pumps and are not meaningfully affected by the pressure and flow they produce.
htmlText_439B26FF_3404_6908_41B9_F83C6294179B.html =
By the nature of the design of this system (variable flow primary/secondary), these pumps are decoupled from the operation of the other pumps and are not meaningfully affected by the pressure and flow they produce.
htmlText_439B26FF_3404_6908_41B9_F83C6294179B.html =
By the nature of the design of this system (variable flow primary/secondary), these pumps are decoupled from the operation of the other pumps and are not meaningfully affected by the pressure and flow they produce.
htmlText_8CA2CA67_57E3_9D4E_41B4_B9C01927C163.html =
Congratulations!
You scored a point for recognizing that you probably will want to test a pump at some point if you find it has a throttled valve or seems to have more head than needed and that a full blown pump test requires some planning and additional/better instrumentation than you have access to on your scoping visit.
And you probably realized that doing an informal test using the information you can glean from the gauges that are installed on the pump along with any other data you can readily pick up on your field trip may provide some insight for prioritizing your efforts moving forward.
htmlText_77DDE634_5746_2FD7_41C4_6FA4101141BF.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_7BFCC933_57C2_25D0_41D2_30F8474ADAA6.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_62A31452_5742_2C53_41D2_0951D03603A3.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_62A31452_5742_2C53_41D2_0951D03603A3.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_7BFCC933_57C2_25D0_41D2_30F8474ADAA6.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_6C8EBE0E_574E_3FB3_41BE_2B3490513445.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_6C8EBE0E_574E_3FB3_41BE_2B3490513445.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_77DDE634_5746_2FD7_41C4_6FA4101141BF.html =
Congratulations!
Here is your test data. We will use this in class to plot the pumps performance and consider the optimization options.
But feel free to try it on your own ahead of time if you want. The information window has some resources that will help you with this.
htmlText_4E885CDB_7012_C2D8_41CE_B54BC89C0AAE.html =
Congratulations! You have just scored a point for taking the time to get to know the operating team you will be working with.
Harley (David's son) is working part time for Hijend as an Engineering Technician while completing his engineering degree at a local university. It was his excitement about Hijend's approach to operations that got his Dad interested in working for Hijend when the DOE position opened up.
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Congratulations! You just scored a point for noticing a valuable resource. Most facilities will be able to provide you with paper or electronic copies of their drawings if you ask. Occasionally, they may not have those records or they may ask you to pay for making the copies. But the information is well worth the investment if you will be working on the facility.
When this closes, you will be given an opportunity to save the drawings associated with the chilled water plant. There may be other drawing sets around that you will want to ask for so "keep your eyes peeled" as they say.
htmlText_4EE0FE10_7015_4128_41C8_0413CDC58C83.html =
Congratulations! You just scored a point for spending some time getting to know the operating team you will be working with.
Noreen has been at the hotel since it was opened, starting out as an engineering technician. She was recently nominated to attend the Hijend Hotel's Advanced Engineering Program (AEP), where she has been introduced to Existing Building Commissioning (EBCx) principles and encouraged to make them standard operating proceedure at her hotel.
As a result, she has retained Joe DeNuguy and his team to support her and her engineering technician Harley in their initial EBCx effort.
htmlText_485E89FB_7077_C2D8_41D5_E2F24A5A19F8.html =
Congratulations! You just scored a point for taking the time to get to know the operating team you will be working with.
David is new to the Hijend Hotel system, coming into it from a position as director of facilities for Center of the State University (COSTU) in Golden Girl, Missouri.
David's son, Harley, is attending a nearby university in pursuit of an engineering degree, and works for Hijend part time as an engineering technician. It was Harley's enthsiasm for Hijend's approach to operations and their dedication to sustainable, efficient operations that caused David to apply for the DOE position when it opened up, even though it meant a move from the Midwest to the West Coast.
htmlText_4E5A962A_7016_C179_41C6_71415464A2E7.html =
Congratulations! You just scored a point for taking the time to get to know the operatint team you will be working with.
Kathy has been at the Hijend since it opened and manages the hotel's facility engineering office.
She is a wealth of information. If you are looking for a drawing or information about a piece of equipment, she is very adept at retriving everything there is on it from her filing system and providing you with copies.
She is also extremely good at multitasking; she can be enchanting the person who just showed up in the office in receptionist mode while patching a call through from a vendor to David's voice mail, all accomplished while sorting the mail and filing submittals from the current meeting room rennovation.
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Congratulations! You just scored a point for visiting the Engineering Office.
This is an important stop, and ideally, should be the first stop you make, especially on your first site visit. For one thing, you should let the engineering team know you are there and what you will be doing before you start wandering around in their plant.
Plus, its an opportunity to get to know the folks who will ulitmately implement the recommendations you make. Showing up with doughnuts occasionally never hurts.
In addition, most engineering offices include a library of information that will be crucial for your success, things like drawings, specifications, utiltiy records, equipment submittals and manuals, etc.
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Contratulations, you scored a point for identifying an important resource. As you work through the project, you will want to check back here to see if there is information available to support the development of your findings.
For example, if you discover a pump optimization opportunity, you may want to check back with Kathy to see if she has the submittal information on the pump and its pump curve in the files.
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False: In reality the control valve is in the supply line but Harley's sketch shows it in the return line. If you take a look, you can see the control valve in the light blue line leading to the unit. Light blue is the color code in the plant for chilled water supply and you can verify that by following the line and discovering it is the supply line leaving the distribution pumps. Plus the plant leaving water temperature indicator shows it to be the line with colder water compared to the teal line next to it.
The clue that it there is a control valve there is that you can just see the red actuator sticking up on top of the pipe and there is a conduit leading to it from a conduit system that - if you trace it out - comes from the Moneyhell control panel located on the side of the unit.
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False: In reality the control valve is in the supply line but Harley's sketch shows it in the return line. If you take a look, you can see the control valve in the light blue line leading to the unit. Light blue is the color code in the plant for chilled water supply and you can verify that by following the line and discovering it is the supply line leaving the distribution pumps. Plus the plant leaving water temperature indicator shows it to be the line with colder water compared to the teal line next to it.
The clue that it there is a control valve there is that you can just see the red actuator sticking up on top of the pipe and there is a conduit leading to it from a conduit system that - if you trace it out - comes from the Moneyhell control panel located on the side of the unit.
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False: In reality, the return tees through its branch to serve a common header that then serves CHWP-1 and CHWP-2 and the run of the tee becomes the decoupling bypass.
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False: In reality, the return tees through its branch to serve a common header that then serves CHWP-1 and CHWP-2 and the run of the tee becomes the decoupling bypass.
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For a cold piping system, the benefits of insulating the valve body - including energy savings and house keeping (no puddle of water or rust and corrosion as a result of condensation) - outweigh the convenience of having the flow direction arrow visible. If you understand how a centrifugal pump works, you can figure out the direction of flow based on the shape of the volute and the points where the piping connects to it.
Try answering the question again until you find the right answer(s).
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For piping that is cold, the insulation is designed to act as a vapor barrier in addition to a thermal barrier. The vapor barrier prevents moisture from migrating and condensing in the insulation when it is humid in the surrounding area.
Since the chiller room is ventilated, but not cooled (other than for what an economizer cycle can accomplish on a cool day), the indoor dewpoint and specific humidity will always be at or above the outdoor dewpoint/specific humidity. Because the cold pipe will lower the temperature of the insulation touching it, it will also the vapor pressure of any air in its vicinity.
Water vapor migrates from high vapor pressure (high dewpoint) locations to low vapor pressure locations. As a result, on humid days, if the hole in the insulation was not sealed up after the insulation thickness was measured, it would provide a path for moisture to enter into the insulation and condense in it, which eventually, would ruin it.
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For piping that is cold, the insulation is designed to act as a vapor barrier in addition to a thermal barrier. The vapor barrier prevents moisture from migrating and condensing in the insulation when it is humid in the surrounding area.
Since the chiller room is ventilated, but not cooled (other than for what an economizer cycle can accomplish on a cool day), the indoor dewpoint and specific humidity will always be at or above the outdoor dewpoint/specific humidity. Because the cold pipe will lower the temperature of the insulation touching it, it will also the vapor pressure of any air in its vicinity.
Water vapor migrates from high vapor pressure (high dewpoint) locations to low vapor pressure locations. As a result, on humid days, if the hole in the insulation was not sealed up after the insulation thickness was measured, it would provide a path for moisture to enter into the insulation and condense in it, which eventually, would ruin it.
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Generally speaking a pump with a throttled valve will represent an opportunity and will merit a test to quantify the potential benefit. So, if you observe a throttled valve, you probably want to target that pump for a test. Doing an informal "As Found" test using the existing gauges may provide additional insight and will take very little additional time given that you are on site and scoping the system anyway.
Full disclosure, there is a remote possibility that a throttled valve does not represent a meaningful energy savings opportunity. For instance, if the line size happens to be large relative to the pumps rated capacity, a valve that appears to be heavily throttled may not represent much of a pressure drop.
But an informal "As Found" pump test would reveal that and help you organize your "next steps".
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I actually don't know that, but I probably should. I bet if you asked Kathy, she would know because she takes the data from our utiltiy bills and enters it into the system we use to benchmark against other Hijend Hotels and track our average daily utility consumption.
Noreen probably knows too because she started that process after she attended the Hijend APE class.
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I know we run one chiller 24/7 for guest satisfaction reasons and always have a couple hundred tons of load on it. But I have not been around the plant long enough to know how often we need the second chiller and what that amounts to in terms of annual run time.
I suspect Noreen knows beause she has been working with the plant for quite a while now, so you may want to ask her.
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I think you should look more closetly at what is going on here. There actually is an opportunity.
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If I am remembering correctly, the blended rate for our last bill was around $0.16 per kWh. I can verify that for you if you need the exact number.
I guess if you are doing something that will reduce demand in addition to saving energy, you would need to know the demand charge and the time of day rate schedule, which I really don't remember off the top of my head. But I can look that stuff up for you and e-mail it to you.
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Immediate energy savings are not necessarily guaranteed.
If the pump is the lead pump and the plant runs 24/7, there will be no immediate savings since the pump would be running.
How ever, it will restore the automation sequence and if the lead pump is switched periodically, then when this pump because the lag pump, it may cycle off depending on the load condition at the time and eventually would cycle off when the load dropped to the point where only one pump and chiller was required.
Thus, to evaluate the savings potential, you need to understand the load and flow profile on the plant so you can figure out how many hours the lag pump would run.
It is good to recognize that you will need to understand the load and flow profile early on in a project because by nature, it takes some time to develop this data. Thus, you will want to begin accumulating that data early on in your project so you have it available when you need to do your savings calculations.
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Immediate energy savings are not necessarily guaranteed.
If the pump is the lead pump and the plant runs 24/7, there will be no immediate savings since the pump would be running.
How ever, it will restore the automation sequence and if the lead pump is switched periodically, then when this pump because the lag pump, it may cycle off depending on the load condition at the time and eventually would cycle off when the load dropped to the point where only one pump and chiller was required.
Thus, to evaluate the savings potential, you need to understand the load and flow profile on the plant so you can figure out how many hours the lag pump would run.
It is good to recognize that you will need to understand the load and flow profile early on in a project because by nature, it takes some time to develop this data. Thus, you will want to begin accumulating that data early on in your project so you have it available when you need to do your savings calculations.
htmlText_43DDD0C9_3404_6908_41B0_00BE84082311.html =
Immediate energy savings are not necessarily guaranteed.
If the pump is the lead pump and the plant runs 24/7, there will be no immediate savings since the pump would be running.
How ever, it will restore the automation sequence and if the lead pump is switched periodically, then when this pump because the lag pump, it may cycle off depending on the load condition at the time and eventually would cycle off when the load dropped to the point where only one pump and chiller was required.
Thus, to evaluate the savings potential, you need to understand the load and flow profile on the plant so you can figure out how many hours the lag pump would run.
It is good to recognize that you will need to understand the load and flow profile early on in a project because by nature, it takes some time to develop this data. Thus, you will want to begin accumulating that data early on in your project so you have it available when you need to do your savings calculations.
htmlText_41FB74E2_3404_6938_41AD_92CF2A2868AB.html =
Immediate energy savings are not necessarily guaranteed.
If the pump is the lead pump and the plant runs 24/7, there will be no immediate savings since the pump would be running.
How ever, it will restore the automation sequence and if the lead pump is switched periodically, then when this pump because the lag pump, it may cycle off depending on the load condition at the time and eventually would cycle off when the load dropped to the point where only one pump and chiller was required.
Thus, to evaluate the savings potential, you need to understand the load and flow profile on the plant so you can figure out how many hours the lag pump would run.
It is good to recognize that you will need to understand the load and flow profile early on in a project because by nature, it takes some time to develop this data. Thus, you will want to begin accumulating that data early on in your project so you have it available when you need to do your savings calculations.
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It actually is possible to estimate it in the field if you can remember or look up the relationship between pump energy, flow, and head and then use information you can observe or look up in the field to evaluate the equation.
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It actually is possible to estimate it in the field if you can remember or look up the relationship between pump energy, flow, and head and then use information you can observe or look up in the field to evaluate the equation.
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It's probably obvious that Item B, while tempting, is not correct.
And it is a really bad feeling to be looking over your test data as you plane lifts off and realize the numbers cannot be correct, which means that at a minimum, you are going to have to get the operating team to repeat the test. Or, you may need to make an extra trip back to the site yourself to repeat it.
Taking the time to do a "sanity check" on your results also allows you to make sure the system is operating smoothly after the test. And while technically, it’s the operating team's problem to deal with any issues, they will appreciate that you hung around to make sure things were O.K.
And, if you discover that your data does not make sense and you need to do some more testing, staying over an extra day to get it right, while potentially a bit "painful" compared to being back home with your loved ones will be less painful and costly than having to make an extra trip.
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Items B, C, and D are correct.
The reason item A is not correct is that you should always ask the operating team if it is O.K. to do anything that moves or modifies their system. In other words, the correct answer would have been Ask the staff to remove the existing gauges and install your test gauge or differential pressure instrument on the existing gauge taps. They may tell you it's O.K for you to do it yourself. But you should never assume that.
The reason item E is not correct is that this particular test will not impact the flow in the system in anyway, other than for a brief shutdown of Chiller 1 to allow the coupling guard to be removed. (The thermal inertia of the system will carry it through the 1-2 minutes needed to remove the coupling guard).
This is unlike the wide open test - which could significantly change the flow to the chiller or the dead head test - which will reduce the flow to zero and would trip a flow safety on the chiller if it was not taken off line first.
While ultimately, this decision would be up to the operating team, most of the time, they would likely feel comfortable performing the informal test without transitioning to the other chiller. This avoids the wear and tear associated with the Chiller 2 starts and stop that would occur if they made the transition.
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Items B, C, and D are correct.
The reason item A is not correct is that you should always ask the operating team if it is O.K. to do anything that moves or modifies their system. In other words, the correct answer would have been Ask the staff to remove the existing gauges and install your test gauge or differential pressure instrument on the existing gauge taps. They may tell you it's O.K for you to do it yourself. But you should never assume that.
The reason item E is not correct is that this particular test will not impact the flow in the system in anyway, other than for a brief shutdown of Chiller 1 to allow the coupling guard to be removed. (The thermal inertia of the system will carry it through the 1-2 minutes needed to remove the coupling guard).
This is unlike the wide open test - which could significantly change the flow to the chiller or the dead head test - which will reduce the flow to zero and would trip a flow safety on the chiller if it was not taken off line first.
While ultimately, this decision would be up to the operating team, most of the time, they would likely feel comfortable performing the informal test without transitioning to the other chiller. This avoids the wear and tear associated with the Chiller 2 starts and stop that would occur if they made the transition.
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Nope, not the right answer. But now you know the other answer is correct, so try again and select it to score some points and learn a few more things.
The webpage that opened up with this window has some resources that will help you understand why this was the wrong answer if you are wondering, in particular the Variable Flow System Overview and Evolution video.
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Nope, not the right answer. But now you know the other answer is correct, so try again and select it to score some points and learn a few more things.
The webpage that opened up with this window has some resources that will help you understand why this was the wrong answer if you are wondering, in particular the Variable Flow System Overview and Evolution video.
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Noreen came back from APE all excited about the system concept and system diagrams and has me working developing them for our systems. She wants to print them out and hang them in the machine rooms for reference and maybe even see if we can build our control system graphics round them once we get a better system.
I finished the one for the ball room AHU and started for the chilled water system using the drawings but I have not had time to field verify it other than going to the machine rooms to see what type of control valves are on the different units. Most of them are two way, but there are also some three-way valves here and there.
Anyway, I am happy to share a copy of what I have if that would be useful to you.
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Not off the top of my head, but you can borrow my tape measure if that would help.
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Paul McCartney! As you can see, I once had my picture taken with him!
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Right now, its around $0.16 per kWh as a blended rate. Of course, if anything you do shifts demand, that could impact the blended rate some.
I can get you a copy of the rate tarrif if you need to get into that.
But on average, I think if you assumed $0.16 per kWh for a rough estimate of savings potential, that would be reasonable in my book.
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Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D2226570_F6F7_A17A_41E9_AEA93C01FD2D.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_E008CDE3_F581_B72D_41C1_BE009B9737C5.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D0B4D51C_F6C8_A6AA_41E3_4A48BD087B96.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D7020D8E_F68E_B7F6_41DE_40EEB27DADF7.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D1ACF870_F6C8_EF7A_41E8_28988E1CB166.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_E0CC9940_F583_7F6B_41A8_E1D13EF3E4FB.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D3325525_F6C8_669A_41BA_283739962F73.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
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Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D0431B39_F6C8_62EA_41E4_BCA9B00BFBA0.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D270181B_F6C8_AEAE_41E7_9CFBA47EDBB8.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D1C4A63E_F6C9_E2E6_41B3_A427B3A0E6CB.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D3D6073F_F6C9_E2E6_41E8_E47EDB637C95.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D4F5FABA_F6D7_A3EE_41A9_130345FEC047.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
htmlText_D75098EA_F68F_5D3F_41D9_B6BAD9C52BDF.html =
Sorry, but you did not get the correct precautions and preparatory steps.
So try again.
Once you get the correct precautions and preparatory steps, you will get your test data.
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That can get a little "fuzzy" because, from what I have observed, our load is driven by our occupancy in addition to the outdoor conditions. But a bad day for us is 80% occuppied, so I think the outdoor conditions are the bigger driver.
So, what I am trying to say here, I guess, is that while I have needed to bring a second chiller on line when it was in the upper 60°sF, most of the time, we can hold off until it is the low to mid 70's°F and not get complaints, which can be expensive if we have to comp the guests.
The control system is programmed to stage the chillers based on plant leaving water temperature, but we sometimes put them in hand because if Chiller 1 is the lag chiller and comes on too soon, it short cycles. And when it's the lead chiller, it short cycles like crazy. I was kind of hoping you could help us figure out why that is happening and how to fix it.
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The correct answer is that the pump has been aligned in the field.
The chipped paint is actually a good sign. It shows that the factory paint was scuffed up when the installing contractor and/or maintenance team aligned the pump after it was installed.
Even if a pump has been factory aligned, it can be knocked out of line by the shipping and installation process. Best practice is to align the pump with it's motor after it has been bolted in place and the piping connected to it and the system is up to temperature.
Some manufacturers recommend multiple alignments during the installation process. Specific requirements are included in their O&M manuals.
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The potential for the valve seat to fail due to the activity of the check valve, requiring that you shut down and drain the system to make a repair is quite true and is something you should consider if you are going to use a valve of this type. If the check valve seat is leaking then flow from the active pump will recirculate through the inactive pump, stealing capacity from the system and creating a potential start-up problem if the inactive pump is started against a revers spinning motor.
For a non-mission critical facility, a system shut down for repair may not be a huge issue; it could be coordinated for the unoccupied hours when the system was off line.
But for a mission critical facility, the need for an outage to make a relatively minor repair could be very costly and disruptive.
Even if you are "stuck" with the valve since you did not realize the issue when it was specified and installed, lessons like this make good design review targets for future projects.
There is also a second right answer, so try the question again to see if you can find it if you have not already found it.
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The right answer is that they have 6 loggers deployed and that gives them more than enough to do the "trick".
More specifically they have loggers on both chillers picking up supply and return temperature (you can see where they took out the thermometers and installed there sensors). This data along with the flow rate determined from a pump test for the evaporator pumps can be used with the water side load equation to calculate tons for each logged data interval and develop the load profile.
If you climb the ladder near the expansion tank and make up piping and look around, you will notice something on the piping where it leaves the plant. If you go look, you will discover they have loggers there picking up the supply and return temperature from the building. The did not have an extra set of wells and needed to keep the temperature sensors in the lines because the control system uses that data to stage the plant. So they:
1. Cut a plug out of the insulation to expose the pipe.
2. Installed their sensors on the pipe surface in a blog of heat transfer grease.
3. Replaced the insulation plug over the sensors so the thermal gradient is through the insulation and the temperature sensors will reflect the temperature of the water in the pipe, and
4. Covered the insulation plug with HVAC tape so there is a vapor seal and water does not migrate into the insulation and condense.
The building supply and return temperature difference can be used along with the ton profile developed for the chillers to calculate the flow profile for each logged interval by solving the waterside load equation for flow.
They also have a logger of some sort that is picking up data from the evaporator pump starters, which will tell them when the pumps and their associated chillers run. They could also determine this based on the chiller temperature difference because the temperatures will drift up towards ambient when a chiller cycles off.
But the pump amps or status will be more specific, showing an immediate change when the pump cycles. and will provide a cross-check on the temperature data.
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The right answer is that they have 6 loggers deployed and that gives them more than enough to do the "trick".
More specifically they have loggers on both chillers picking up supply and return temperature (you can see where they took out the thermometers and installed there sensors). This data along with the flow rate determined from a pump test for the evaporator pumps can be used with the water side load equation to calculate tons for each logged data interval and develop the load profile.
If you climb the ladder near the expansion tank and make up piping and look around, you will notice something on the piping where it leaves the plant. If you go look, you will discover they have loggers there picking up the supply and return temperature from the building. The did not have an extra set of wells and needed to keep the temperature sensors in the lines because the control system uses that data to stage the plant. So they:
1. Cut a plug out of the insulation to expose the pipe.
2. Installed their sensors on the pipe surface in a blog of heat transfer grease.
3. Replaced the insulation plug over the sensors so the thermal gradient is through the insulation and the temperature sensors will reflect the temperature of the water in the pipe, and
4. Covered the insulation plug with HVAC tape so there is a vapor seal and water does not migrate into the insulation and condense.
The building supply and return temperature difference can be used along with the ton profile developed for the chillers to calculate the flow profile for each logged interval by solving the waterside load equation for flow.
They also have a logger of some sort that is picking up data from the evaporator pump starters, which will tell them when the pumps and their associated chillers run. They could also determine this based on the chiller temperature difference because the temperatures will drift up towards ambient when a chiller cycles off.
But the pump amps or status will be more specific, showing an immediate change when the pump cycles. and will provide a cross-check on the temperature data.
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The throttled valve definately represents an energy savings opportunity. It is quite common and applies to any valve that is throttling the flow of a pump, not just a triple duty valve.
There is also a second right answer, so try the question again to see if you can find it if you have not already found it.
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The wires are temporary low voltage inputs to the data logger mounted on the side of CHWP-1's starter. Because they are low voltage and temporary, this is not a problem.
An added bonus is that Harley provided a cord and cable connector to route the cable from the CT out of the starter so he did not have to keep the starter door open while logging. Which would be a safety concern. This allows the starter door to be closed but makes the logger accessible for data retrieval by someone who is not an electrician. This would not be the case if the logger was mounted inside the starter and the door needed to be opened to read it.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
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There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
htmlText_EA972372_525E_9347_41B9_FCF9EC982618.html =
There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
htmlText_E4F53DA7_5262_F7CE_4175_14F51625D352.html =
There are actually more loggers, but you really have to look to find some of them. So, think a bit more about what data points you need and try again. Remember, some loggers can pick up more than one data point. Once you come up with the right number of loggers - which will provide all of the data needed - you will be given some additional details regarding the logger deployment.
htmlText_4064CD7C_3404_1B08_41B1_77773734172D.html =
This pump and its gauges are at the bottom of a very tall pipe and the pressure represents the weight of the water in the pipe. It's like when you are snorkeling; when you dive down to get a closer view of a fish, the deeper you go, the more pressure you feel in your ears.
htmlText_4064CD7C_3404_1B08_41B1_77773734172D.html =
This pump and its gauges are at the bottom of a very tall pipe and the pressure represents the weight of the water in the pipe. It's like when you are snorkeling; when you dive down to get a closer view of a fish, the deeper you go, the more pressure you feel in your ears.
htmlText_4064CD7C_3404_1B08_41B1_77773734172D.html =
This pump and its gauges are at the bottom of a very tall pipe and the pressure represents the weight of the water in the pipe. It's like when you are snorkeling; when you dive down to get a closer view of a fish, the deeper you go, the more pressure you feel in your ears.
htmlText_4064CD7C_3404_1B08_41B1_77773734172D.html =
This pump and its gauges are at the bottom of a very tall pipe and the pressure represents the weight of the water in the pipe. It's like when you are snorkeling; when you dive down to get a closer view of a fish, the deeper you go, the more pressure you feel in your ears.
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This tape is covering a hole that Joe DeNuguy punched in the insluation to figure out how thick it is. He found out that it was 1 inch thick.
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To answer this, you need to estimate the approximate amount of cooling that is being done by the chiller and recognize that the power being drawn by the compressor will also show up as rejected heat into the condenser water system.
Recognizing that, you can solve the water side load equation for flow using your estimate of rejected heat and the observed temperature rise, which will cause you to conclude that there is more than the design flow rate.
The higher than design flow rate is also evidient from the higher than design pressure drop across the condenser. You could use the observed pressure drop and the design flow rate and pressure drop from the equipment schedule along with the square law to estimate the current flow rate.
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Training was value engnieered out of the original project so we have been really blind in terms of our ability to do much with the control system. The good news is that when David Carson came on board as our new DOE (Harley's Davids son), he realized how crippling that was and asked for budget to get a couple of us into the factory training class.
I will be going next month. So, by the time you are ready to implement any changes, we should be in a position to do it in house as long as it's nothing too complex.
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True: This difference is not a huge issue but there are several potential benefits of the installed configuration:
1. This would allow the plant to remain on line and keep the electrical distribution room cool if major work needed to be done out in the facility that required the piping network to be isolated from the plant using the valves over the entry door so the piping network could be drained.
2. This would also allow the ventilation AHU to be used as a load on the plant during the commissioning process to allow the start-up team to begin to bring the plant on line even if the piping network serving the hotel was not completed and able to be filled with water.
htmlText_056EA313_43C2_5819_41C8_E16CA9F9BC30.html =
True: This difference is not a huge issue but there are several potential benefits of the installed configuration:
1. This would allow the plant to remain on line and keep the electrical distribution room cool if major work needed to be done out in the facility that required the piping network to be isolated from the plant using the valves over the entry door so the piping network could be drained.
2. This would also allow the ventilation AHU to be used as a load on the plant during the commissioning process to allow the start-up team to begin to bring the plant on line even if the piping network serving the hotel was not completed and able to be filled with water.
htmlText_07F1C850_43C2_6817_41BD_42A26B7FE2F4.html =
True: This is one of the significant differences between the design intent and the way the plant is actually piped because with two chillers operating against a load that is 75% of the plants rated capacity, the design intent piping favored Chiller 1 with warm return water, which would tend to keep it fully loaded. In contrast, Chiller 2 would see the lower return water temperature produced when bypass water blended with return water at the tee serving CHWP-2.
To understand this, you have to perform a node analysis and apply the principles of conservation of mass and energy at each tee in the system. This will be the topic of one of our discussions in class. But if you are curious about this, when you close this window, a link will open up to a webpage with a number of resources that illustrate how a variable flow plant like the one in the Hijend Hotel would work.
htmlText_07F1C850_43C2_6817_41BD_42A26B7FE2F4.html =
True: This is one of the significant differences between the design intent and the way the plant is actually piped because with two chillers operating against a load that is 75% of the plants rated capacity, the design intent piping favored Chiller 1 with warm return water, which would tend to keep it fully loaded. In contrast, Chiller 2 would see the lower return water temperature produced when bypass water blended with return water at the tee serving CHWP-2.
To understand this, you have to perform a node analysis and apply the principles of conservation of mass and energy at each tee in the system. This will be the topic of one of our discussions in class. But if you are curious about this, when you close this window, a link will open up to a webpage with a number of resources that illustrate how a variable flow plant like the one in the Hijend Hotel would work.
htmlText_F27D72E5_52E2_6D4D_41B3_0E3ADD8B0622.html =
We trend chilled water supply and return temperatures leaving the plant and for each chiller every thirty minutes. But unfortunately, the flow meter was eliminated from the project during a value engineering cycle.
We hope to add one eventually, but it will be expensive because we will probably have to shut down and drain the plant piping to cut in the meter. There is a possibility that we could hot tap a meter into the system which avoids the outage. But that is not without it's risks and is not particularly cheap either.
The good news is that I learned this really cool trick at APE and if it works we can use the data we have available along with some pump test data to develop the flow and load profile. But doing that will required working with the control system programming and database and nobody was trained on how to do that. I will be soon though.
But for the time being, I have deployed data some data loggers to pick up the data we need to do the trick to validate the concept. I'm happy to share that data with you and get your take on our idea.
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When working on electrical equipment, it is absolutely critical to comply with the protocols in place at the facility where you are working and also with good practice.
Good practice would dictate that you open the disconnect switch and lock it open with your designated lock along with a tag indicating that you had placed the lock on the disconnect. In some facilities, you may not be able to do this unless you have proper credentials, for instance, arc-flash training certifications or being a licensed electrician.
If I had a nickel for each time a Turboencabulator failed because someone failed to release the preload on the main spurving bearings, I would be rich. Taking this step is crucial to success.
Finally, the reason that being cautions if you are sensitive to ruminative Diethyliodohexamine. was not a correct answer is that the Turboencabulator module contains ruminative Tetraethyliodohexamine. Ruminative Diethyliodohexamine is totally safe because of the Di part instead of the Tetra part.
For a detailed explanation of the Turboencabulator, visit the link below.
htmlText_EA51742A_F0B3_63BA_41B8_669A131B3BE3.html =
While the functions associated with the first answer are correct, the valve is not located on the suction side of the pump. Rather, it's located on the discharge side of the pump, which is a suitable location for it.
Try answering the question again until you get the right answer(s).
htmlText_5846347C_4304_F07C_41BC_A8F4A576AA66.html =
Yeah, I get that a lot.
I think its probably my necklace; they are really popular and everone is wearing them.
htmlText_82954D60_5622_7743_41A2_D266532E2850.html =
Yes, they actually have a venturi meter in the supply to the building. It just is not hooked up to the control system. Apparently, the VE process removed the differential pressure sensors and associated wiring and programming required to use the venturi meter as an input to the control system from the control vendors scope of work.
But the venturi itself was in the mechanical contractors piping scope of work since it needed to be welded into the piping an the VE process did not remove it from the mechanical contractor's scope. Thus, it was installed, even thought it was not connected to the control system.
As a result all the Hijend team needs to do to add flow trending into their moneyHell control system, and add it to the point database. This is a much less costly proposition than cutting in or hot tapping in a flow meter and can probably be done in-house once they have been through some training on their control system.
Meanwhile, you could use a data logger to collect data from the flow meter to develop a flow profile if you wanted to and had the right kind of logging equipment.
htmlText_82954D60_5622_7743_41A2_D266532E2850.html =
Yes, they actually have a venturi meter in the supply to the building. It just is not hooked up to the control system. Apparently, the VE process removed the differential pressure sensors and associated wiring and programming required to use the venturi meter as an input to the control system from the control vendors scope of work.
But the venturi itself was in the mechanical contractors piping scope of work since it needed to be welded into the piping an the VE process did not remove it from the mechanical contractor's scope. Thus, it was installed, even thought it was not connected to the control system.
As a result all the Hijend team needs to do to add flow trending into their moneyHell control system, and add it to the point database. This is a much less costly proposition than cutting in or hot tapping in a flow meter and can probably be done in-house once they have been through some training on their control system.
Meanwhile, you could use a data logger to collect data from the flow meter to develop a flow profile if you wanted to and had the right kind of logging equipment.
htmlText_82954D60_5622_7743_41A2_D266532E2850.html =
Yes, they actually have a venturi meter in the supply to the building. It just is not hooked up to the control system. Apparently, the VE process removed the differential pressure sensors and associated wiring and programming required to use the venturi meter as an input to the control system from the control vendors scope of work.
But the venturi itself was in the mechanical contractors piping scope of work since it needed to be welded into the piping an the VE process did not remove it from the mechanical contractor's scope. Thus, it was installed, even thought it was not connected to the control system.
As a result all the Hijend team needs to do to add flow trending into their moneyHell control system, and add it to the point database. This is a much less costly proposition than cutting in or hot tapping in a flow meter and can probably be done in-house once they have been through some training on their control system.
Meanwhile, you could use a data logger to collect data from the flow meter to develop a flow profile if you wanted to and had the right kind of logging equipment.
htmlText_82954D60_5622_7743_41A2_D266532E2850.html =
Yes, they actually have a venturi meter in the supply to the building. It just is not hooked up to the control system. Apparently, the VE process removed the differential pressure sensors and associated wiring and programming required to use the venturi meter as an input to the control system from the control vendors scope of work.
But the venturi itself was in the mechanical contractors piping scope of work since it needed to be welded into the piping an the VE process did not remove it from the mechanical contractor's scope. Thus, it was installed, even thought it was not connected to the control system.
As a result all the Hijend team needs to do to add flow trending into their moneyHell control system, and add it to the point database. This is a much less costly proposition than cutting in or hot tapping in a flow meter and can probably be done in-house once they have been through some training on their control system.
Meanwhile, you could use a data logger to collect data from the flow meter to develop a flow profile if you wanted to and had the right kind of logging equipment.
htmlText_82D6A3FA_5623_9346_41B5_6B5747DC1BC8.html =
Yes, you are right. If you can remember the pump power relationship and use field clues and engineering judgement to evaluate the equation, you can ball-park the savings potential out in the field. This will help establish your priorities in terms of which opportunities to pursue first.
And it will help build confidence between you and the operating team because they will likely realize that you know what you are doing since you are using physical clues specific to their system to come up with answers.
See if you can estimate the savings potential based on what you are seeing. Remember, you might want to ask a few questions of the operating team to help you come to a conclusion.
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You don't really know just by looking at it since it is not push to test. To figure it out, you would have to figure out if the pump was running or not.
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You probably noticed that when this panorama opened up, the score bar at the top of the screen opened up. Please keep this open for the time being because if you test the pump, you will need to be able to see your score in the different pump test categories.
htmlText_439921C4_3404_2B78_41BE_F4A54931CF11.html =
You should not touch the switch. For one thing, you don't know why it is in Auto. If you put it in Hand, you might find out the hard way.
And you never should change anything in a plant without the operating team's permission.
Finally, if you are doing work under a utility rebate program, you need to document the "as found" condition before fixing the problem. This may require logged data for a specified length of time. So you would need to capture that data before returning the switch to Auto.
htmlText_402803C4_343B_EF78_41A1_9DAB215F2483.html =
You should not touch the switch. For one thing, you don't know why it is in Auto. If you put it in Hand, you might find out the hard way.
And you never should change anything in a plant without the operating team's permission.
Finally, if you are doing work under a utility rebate program, you need to document the "as found" condition before fixing the problem. This may require logged data for a specified length of time. So you would need to capture that data before returning the switch to Auto.
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We intentionally made the instructions cover the whole screen at start-up to encourage you to take a minute to read through them This will help you gain the maximum benefit from the exercise.


Notice there are several tabs. This first one give you general instructions on how to navigate the model and what the function of the buttons are in the lower left corner.


The second provides guidance about the icons you will run into as you navigate through the model, which generally are hot spots that open other views or interactive elements.


The third provides some background information about what is going on in the facility on the day of your virtual exercise. The events and climate conditions likely impact the systems you will be observing.


The fourth provides links to exercise guidance documents. We use this model for a number of different exercises in classroom settings. As we develop a formal exercise, we are developing guidance documents to support the exercise by providing a statement of the specific goals and illustrating how to start the exercise in a "Quick Start" format as well as a more detailed step by step format. Guidance documents will be linked from this page as we develop them and will open in a pop-up .pdf that you can download and refer to.


This exercise is intended to allow you to generally explore the Hijend Hotel central chilled water plant and then focus on scoping the chilled water pumps, developing a chilled water system diagram, and testing an evaporator pump. The model uses three different types of images to create the tour.


• Plan and elevation views
• Panoramas
• 360° spherical views


As you pan around in the different views and mouse over them, you will discover "hot spots" that will show up as a highlighted area. If you click on one of them, you will find things like information, questions you can answer to score points, or you will be taken to a different view based on the hot spot location. For instance, a hot spot over a door will probably take you through the door. A hot spot over an item like a piece of equipment will probably take you to a question or information about the item.


The plans, elevations and panorama views will be the most realistic. But, the plans and elevations will have very limited panning and zooming and are used to focus on a particular learning experience.


The panoramas will allow you to pan left and right and zoom a bit but will not allow you to pan up and down. It is as if you were standing someplace and turned your head left or right to look around. They are used to allow you to explore the model with the most realistic perspective and will contain hot spots that you can select so that you can investigate something in greater detail and perhaps score a point or two.


The 360° spherical views generally provide full flexibility to look in all directions and zoom quite a bit. But because of the technique used to create them, they will have some distortion associated with them. However, they are very useful if you are trying to trace out a pipe, duct, or conduit because they will allow you to follow it, just like you would in the field. Thus they provide a different way to explore the model, especially if you are trying to trace out a line to develop a system diagram or tracing a conduit to figure out what the wiring in it is controlling or powering.


So, if you were working on a system diagram, you would use the 360° spherical views much of the time. But if you were doing the scoping exercise or pump test, you would stick to the panorama, plan, and elevation views because they contain the hot spots you can use to find items, score points, do the virtual pump test, etc.


There are a number of ways to navigate through the model. One is to use the floor plan viewer. A drop down menu allows you to pick different areas in the model. The floor plans contain a number of red squares and yellow dots.


When you click on a red square, you will be moved to a panorama view from that location. If you pick a yellow dot, you will be moved to a 360° spherical view from that location.


Either way, the refrence point will be the point where the rdot or square is located, as if you were standing there. The yellow "radars" around the dot or square when you have clicked on it show your approximate field of view.


Note that hot spots may not be replicated in the different views. In other words, if there is a hot spot over a pump in one view and that same pump shows up in a different view, there may not be a duplicate hot spot in the second view. Bottom line, if you want to find everything, you need to explore the model from all of the view points provided. If you are in a real mechanical space, this is also true. Sometimes, a critical detail is only noticable from one, very specific perspective. So you want to learn to look at things from different angles.


When you run into a question to be answered, your anwer will often control wher you go next. Most, if not all questiosn can be repeated. If you get something wrong, you usually will be given some information about why your answer was wrong and then you can try again if you want.


"Yes - No - Maybe" questions should be carefully considered. If your answer is correct (and correct could be "Yes" or "No" depending on the nature of the question) then you will score a point. But, if your answer is incorrect (and incorrect could also be "Yes" or "No" depending on the nature of the question, then you will lose a point.


Answering "Maybe, but I need to do some research before I can answer for sure" has no impact on your score and gives you a chance to figure out what the right answer is rather than guessing. You should treat your clients the same way; a guess that is wrong could cause you to lose their respect at a minimum and could cost them money or worse.


Knowing what you don't know is actually empowering, especially if you then make the effort to learn something new and apply it.


"Yes", No, Maybe" questions should be carefully considered.


Most of the pop-up windows will close on their own given a bit of time. But you can also close them using the cluse button, which is usually an "X" in the upper right corner of the window.


Note also that a pop-up window might open and be partially obscured by the window that triggered it. You should be able to click on the header of the window that is in front and shift it so that you can fully view the window behind it.


There is a button in the lower left corner of this screen that lets you turn the floor plans on and off and generally you will probably want to turn them off once you have selected a location to maximize your viewing area. If, after following a series of hot spots, you find yourself "stuck" with no way back to where you came from, you can always use the floor plan viewer to return to one of the locations it contains and move on from there.


There are several other buttons in the lower left corner of the screen will allow you to toggle a number of things on and off so you can refer to them as needed but otherwise free up the view.


The speaker button toggles the sound on and off. You will probably be tempted to turn it off for peace of mind and to protect your hearing. But frequently, the sounds you hear in a plant are clues that you may not want to miss. So, rather than muting the sound, consider using your speaker controls to reduce the volume, just like what would happen if you put on hearing protectors or used ear plugs in a real plant.


The button with the presenter and students toggles this instruction window on and off (I bet you can't wait to turn it off, but keep reading just so you are aware of everything).


The buttom with the books toggles an information window on and off. As you work through the exercises, you may find that you want more information about a particular topic. For instance, if you are not familiar with what a pump test is, you might want to find out more about that topic. Or, if you are wondering about what the installation manual for a pump contains, you might want to take a look at one. The information window has been set up to provide you with information of this type using a tabbed arrangement similar to this instruction window. If you see the book icon in an information window while working through an exercise, that means there is supporting information available via the information window.


The camera button will take a screen shot and allow you to save it. It is analogous to being out in the field and taking a picture with your camera when you are scoping out a project or doing field work.


The score button toggles your scores on and off. The "Scoping Score" represets the points you accumulate based on identifying opportunities. The "Correct Questions" shows you how many of the questions were answered correctly. The "Dead Head Test Score" and similar are scores that you will need to enter to answer a question that will control how the branching logic in the model works when you are working through one of the pump tests.
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