Emerson 1F78 144 Users Manual
White-Rodgers-1F78-144-White-Rodgers-70-Series-Non-Programmable-Single-Stage-Thermostat-Supplemental-Wiring-676837 white-rodgers-1f78-144-white-rodgers-70-series-non-programmable-single-stage-thermostat-supplemental-wiring-676837
Emerson Thermostat 1F78-151 Cat_06_pg0190
1f781441 498fbc67-ccce-4ce2-8ff4-ea2dcff5d789 Emerson Thermostat 1F78-144 User Guide |
2015-01-05
: Emerson Emerson-1F78-144-Users-Manual-164380 emerson-1f78-144-users-manual-164380 emerson pdf
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1F78-144 1F78-151 CONFIGURATION AND TYPICAL WIRING DIAGRAMS CONFIGURATION W RH B RC G O Y W904 W905 Clip for Hydronic System W905 ELEC W904 Clip for Celsius Display GAS Electric/Gas Switch TYPICAL WIRING DIAGRAMS JUMPER WIRE B Y O G Cooling System W RC B THERMOSTAT RH Y G W Cooling System Fan Relay Heating System O RC RH THERMOSTAT SYSTEM SYSTEM Fan Relay Hot 24 VAC 120 VAC Hot 24 VAC Neutral 120 VAC HEATING TRANSFORMER Neutral Hot Cool only, 3-wire, single transformer systems 24 VAC 120 VAC Neutral COOLING TRANSFORMER Heat/cool, 5-wire, two-transformer systems JUMPER WIRE B O Y NOTE For 2-wire Heat only attach to RH and W G W Fan Relay Heating System RC THERMOSTAT RH SYSTEM Hot 24 VAC JUMPER WIRE B Y O JUMPER WIRE G W RC RH THERMOSTAT SYSTEM 120 VAC Neutral TRANSFORMER Heat only, 3-wire, single transformer systems Reversing Compressor Fan Valve* Contactor Relay Hot 24 VAC * Reversing valve is energized when the system switch is in the COOL position 120 VAC Neutral TRANSFORMER TECHNICAL HELP Heat pump with cool active reversing valve JUMPER WIRE B O NOTE RED jumper wire (provided with thermostat) must be connected between thermostat's RH and RC terminals for proper thermostat operation with this system. Y Cooling System G Fan Relay W RC RH SYSTEM Heating System Hot 24 VAC 120 VAC Neutral TRANSFORMER Heat/cool, 4-wire, single transformer systems 190 JUMPER WIRE THERMOSTAT www.white-rodgers.com B Reversing Valve* O Y G JUMPER WIRE W RC THERMOSTAT RH SYSTEM Compressor Fan Contactor Relay Hot 24 VAC * Reversing valve is energized when the system switch is in the HEAT position 120 VAC Neutral TRANSFORMER Heat pump with heat active reversing valve
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