Instruction/ maintenance manual of the product 37-5086B White Rodgers
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PART NO. 37-5086B Replaces 37-5086A 9517 FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. DESCRIPTION This wall-mounted, low voltage thermostat maintains room temperature by controlling the operation of heating and cooling systems.
2 SPECIFICA TIONS ELECTRICAL DATA Electrical Rating: 17 to 30 VAC, 50/60 Hz. 0.05 to 1.5 Amps 1.5 Amps Maximum Total Load (All terminals combined) Anticipation: Heating 2 to 40 Cooling 4 to 40 THERMAL.
3 REPLACEMENT INST ALLA TION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installa- tion is complete. Verify power is off with a voltmeter. 2. Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall.
4 RH Y MV 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM G W Figure 7. Typical wiring diagram for heat/cool, 4-wire, single transformer systems TRANSFORMER 6 Cooling System Fan Relay Heating System RC J.
5 RH Y MV 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM G W HEATING TRANSFORMER 6 24 VAC 120 VAC Hot Neutral COOLING TRANSFORMER Cooling System Fan Relay Heating System RC G RC 6 MV Y W RH Thermostat Terminal Connections From fan relay From heating system From 24 VAC cooling transformer From cooling system From 24 VAC heating transformer Figure 11.
6 Figure 13. Back of thermostat Option switches 3-pin connector 6-pin connector Batteries W14 W22 (Group A) (Group B) ATTACH THERMOSTAT TO SUBBASE IT IS RECOMMENDED THAT YOU SET OPTION SWITCHES TO DESIRED POSITION BEFORE ATTACH- ING ON SUBBASE (see OPERATION ).
7 ON 123 Switch #1 OFF Switch #2 OFF Switch #3 (see step B5) 2. Manual Changeover (Heating/Cooling Systems Only) 3. Heat Only Systems 4. Cool Only Systems 5.
COOLING SYSTEM To prevent compressor and/or property damage, if power to the compressor has been off or inter- rupted for more than 1 hour and the outdoor temperature is below 50 ° F, DO NOT operate .
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