York DM 180 Technical Manual
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Contents
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262259-YTG-B-0107Unitary Products Group 29TABLE 24: SUPPLY FAN VFD WEIGHTS, IN LBS.SUPPLY FAN MOTOR 230V 460V 575VW/O MANUAL BYPASS5.0 hp 25 25 307.5 hp 30 30 3010.0 hp 30 30 3515.0 hp 30 30 40W/MANUAL BYPASS5.0 hp 30 30 357.5 hp 35 35 3510.0 hp 35 35 4015.0 hp 40 35 45TABLE 25: ELECTRIC HEAT CORRECTIONFACTORSNOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER208 208 1.00240 230 0.92480 460 0.92600 575 0.92FIGURE 3 - TYPICAL DM FIELD WIRING DIAGRAMRHRCY1Y2W1W2GRRHY1Y2W1W2GBLED1LED2COMA1A2TT443 3Y1Y2W1W2GBXA1A2L1L3L2RCRY1Y2W1W2GBXA1A2Y3NOT USEDTO REMOTE SENSOR2THO4702224 IF USED1 Electronic programmable thermostat 2ET04700224 (includes subbase).2 Terminal block 1TB- located on relay board in 24-volt section of the unit control box.3 Second stage heating is not required on units with a single stage electric heater.4 Terminals A1 and A2 provide a relay output to close the outdoor economizer damperswhen the thermostat switches to the set-back position.NOTE: Fans switch must be in "ON" position for minimum ventilation during heater operation.LINE VOLTAGETERMINALBLOCK 2TBIN CONTROL BOXGROUND LUGRefer to theELECTRICAL DATAtables to size thepower wiring, thefuses and thedisconnect switch.24 VOLTTRANSFORMERCOOLING / HEATING (24 VOLT THERMOSTAT)THERMOSTAT 1TERMINALSCONTROL WIRINGUNIT TERMINALBLOCK 1TB 21 24 Volt Thermostat 2TH04701024 or 2TH04701524(with Subbase 2TB04700324).2 Terminal strip 1TB - located on relay board in 24-volt sectionof the unit control box.3 Second stage heating is not required on units with a single stageelectric heater.THERMOSTAT1TERMINALS UNIT TERMINALBLOCK 1 TB2COOLING ONLY (24 VOLT THERMOSTAT)24 VOLTTRANSFORMERPOWER WIRINGADDJUMPERADDJUMPERADDJUMPER |
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