P&I Diagram

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Packaged DFA P&I Diagram

Notes:1. Chiller scope2. Parts marked with "**" are not applicable to cooling/heating type, andthose marked with "*" & "**" are not applicable to cooling only type.3. Line type:actuator signal outputsensor signal inputcommunicationControl devicesINV1INV3INV5INV6TSPLCBCsolution pump inverterrefrigerant pumpcooling tower inverter(one as standard)cooling water pumpinverterTS touch screenprogrammable logic controllerburner controlControlled objectsRPHPLPVPLQFJF24F25F26BF2BF3BF4YBKFBMrefrigerant pumpsolution pumpLTG solution pumpair vent pumpair cooling tower fanrefrigerant motor valvehot W. 3-way valve*heating W. 3-way valve*fuel gas main solenoidvalvefuel gas work solenoid valvefuel gas ignition solenoidvalvedrain motor valvecontrol cabinet fanburnerSensorsT1T2T2AT3T4T5T5AT6T9T10T11T12T13T14T15T16T17T18T19B1B1AB2B3GYYK1YK2YK3YK4YK5YK6V1V2V3V4SΔPSG1SG2chilled W. inlet temp. sensorchilled W. outlet temp. sensorchilled W. calibration temp. sensorcooling W. inlet temp. sensorcooling W. outlet temp. sensorHTG temp. sensor (to PLC)HTG temp. control (to burner)exhaust temp. sensorambient temp. sensorHTG crystallization sensorLTHE diluted solution inlet temp. sensorLTG crystallization sensorcontrol cabinet temp. sensorheating W. inlet temp. sensor*heating W. outlet temp. sensor*hot W. inlet temp. sensor**hot W. outlet temp. sensor**LTG temp. sensorcondenser temp. sensorchilled W. flow switchchilled W. flow switchcooling W. flow switchcooling W. flow switchpressure controlHTG solution level proberefrigerant level probenon-condensable gas sensorauto air vent probeLTG solution level probeabsorber solution level probechilled/heating W. flowmetercooling W. flowmeter (≥BY75)gas flowmeterhot W. flowmeter **conductivity sensor (≥BY75)differential pressure sensor (optional)burner gas leakage sensormachine room gas leakage sensorComponentsHTHEHigh Temperature Heat ExchangerLTHELow Temperature Heat ExchangerOthersF1F2F3F4F5F6F8F9F10F11F12F13F14F15F16F17F18F19F20F21F27F28F29F30YA1YA2FEBF1BF8BF9P1P2PRG1G3YAYCYDYEYFCG1CG2RDchilled/heating W. switch valve*chilled/heating W. outlet single valve*steam angle valveconcentrated solution angle valvediluted solution angle valveHTG concentration regulating valvewater system shutoff valverefrigerant sampling valveLTHE sampling valveHTHE sampling valvediluted solution sampling valvemain purge valvedirect purge valveHTG purge valvesampling purge valvebalance valvemain shell pressureHTG pressure detecting valvevacuum vent valve & manual valvenitrogen charging valvechilled W. drain valvecooling W. drain valveheating W. drain valve*hot W. drain valve**hot W. pressure release valve**heating W. pressure release valve*auto water makeup valvefuel gas ball valvefuel oil filter discharge valvefuel oil filter vent valvelower limit pressure switchupper limit pressure switchfuel gas pressure regulatorgas filteroil filterauto air ventmanual drain valvedischarge valvewater makeup valvemanual water makeup valveHTG compound gaugemain shell compound gaugerupture disccooling tower fancooling tower fanA/C Waterpi-diagram.img.ltg.1LTGLTHEHot Watercity waterwater softenerauto chemical dosing devicecooling W. pumpA/C W. pumphot W. pumppump control cabinetheating W. heater *hot W. heater F19 hot W.exhaustheat exchanger(optional)condenserabsorberevaporatorpi-diagram.img.htg.1HTGHTHEsetup outdoorfuel gasfuel oilBASBAS control system (optional)CCSCCS control interface (optional)internetdraft fansupplied with enclosureprogrammable logic controllerauto purge/vent system

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Packaged Steam Chiller

(similar for BSY: steam chiller, BHY: hot W. chiller, BEY: exhaust chiller)


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Packaged Single-stage Steam Chiller

(similar for BDSY: Single-stage steam chiller, BDHY: Single-stage hot W chiller, BDEY: Single-stage exhaust chiller)


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Packaged Exhaust & Direct-fired Chiller


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Packaged Multi-energy Chiller

similar for BZHEY: Hot W., exhaust & direct-fired chiller