York DF 072 Technical Manual
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Contents
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254599-YTG-C-0807Unitary Products Group 15TYPICAL POWER WIRINGTYPICAL CONTROL WIRINGFIGURE 2 - TYPICAL FIELD POWER & CONTROL WIRINGREFER TO THE ELECTRICAL DATATABLES TO SIZE THE DISCONNECTSWITCH, OVERCURRENT PROTEC-TION AND WIRING.RVYCGFRY1CY2THERMOSTAT1TERMINALSUNIT TERMINALSTRIP TB124 VOLTTRANSFORMERCOOLING ONLY (24 VOLT THERMOSTAT)1 24 VOLT THERMOSTAT 2TH07701024. TO CONTROL THE ECONOMIZERON SECOND STAGE COOLING, USE THE THERMOSTAT 2TH0401224.GRCRHY1Y2W1W2GLED 1LED 2COMA1A2TTBRY1Y2GCXOCCW2W1THERMOSTAT1TERMINALS UNIT TERMINALSTRIP TB1 24 VOLTTRANSFORMERTO REMOTE SENSOR2TH040702224 IF USEDNOTUSEDADDJUMPERADDJUMPER44321 ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET04700224 (INCLUDES SUBBASE).2 SECOND STAGE COOLING IS NOT REQUIRED ON UNITS LESS ECONOMIZER.3 SECOND STAGE HEATING IS ONLY REQUIRED ON UNITS WITH A TWO STAGEELECTRIC HEATER OR 2 STAGE GAS HEAT.4COOLING / HEATING (ELECTRONIC THERMOSTAT)MULTI STAGEREMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTORP6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAYOUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THETHERMOSTAT SWITCHES TO THE SET-BACK POSITION.RCYRY1Y2W1WW2GCGRHTHERMOSTATTERMINALSUNIT TERMINALSTRIP TB124 VOLTTRANSFORMERADDJUMPER1COOLING / HEATING (24 VOLT THERMOSTAT)24 VOLT THERMOSTAT 2ET07701024. TO CONTROL THE ECONOMIZER ON THE SECONDSTAGE COOLING OR TO HAVE AN ELECTRIC HEAT ACCESSORY WITH TWO STAGES OFHEAT, USE THERMOSTAT 2TH0471024.1RHRCYWGRY1W1CGADDJUMPERTHERMOSTAT1TERMINALS UNIT TERMINALSTRIP TB124 VOLTTRANSFORMER1 ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT2TH04700224.COOLING / HEATING (ELECTRONIC THERMOSTAT)SINGLE STAGE |
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