White Rodgers Wiring Diagrams and Configuration Guides for 1F95-1291 Thermostat

WIRING DIAGRAMS

Figure 2 – Single Stage or Multi-Stage System

(No Heat Pump) with Single Transformer

System	RC	RH	C	Y	Y2	W/E	W2	G	O/B	6	L
Single Stage 1				Call for cool	No Output	Call for heat	No output		Installer
(SS1)									Configuration		Fault or System
			24 volt						Menu selects
											Malfunction
									“O” or “B” for
			common					Blower/Circulator fan			Indicator for
									changeover	Power closed
	24 volt	24 volt	(optional					energized on a call			Heat Pumps
			for system					for cool or Fan On	function. Set	connection for	with “L” terminal
	power for	power for							to “O” terminal	SPDT 3-wire
	cooling	heating	operation,					(also energized in	energized in Cool		connection.
Multi Stage 2			required	Cool mode-1st	Cool mode-2nd	Heat mode-1st	Heat mode-2nd	heating if configured		zone valve	Original production
									& Off mode. Set
			for remote					for Electric Heat)			1F95-1291’s
(MS2)				stage	stage	stage	stage		to “B” terminal
			sensor)								do not have this
									energized in
											connection
									Heat & mergency
									mode

	NEUTRAL
	24VAC
				120VAC
	HOT
Single Stage and Multi-Stage Connections	SINGLE STAGE (SS 1) gas, oil or electric.
			CLASS II
Refer to equipment manufacturers’ instructions for specific system	MULTI-STAGE (MS 2) gas, oil or electric.	TRANSFORMER
wiring information.
This thermostat is designed to operate a single-transformer or two-	After wiring, see INSTALLER CONFIGURATION section for proper
transformer system.	thermostat configuration.

You can configure the thermostat for use with the following fossil fuel systems:

Figure 3 – Heat Pump Systems

System	RC	RH	C	Y	Y2	*W/E	*W2	G	O	6	L
						Heat mode-2nd	Heat mode-3rd
						stage, Emergency	stage, Emergency
Heat						Mode-1st stage	Mode-2nd stage
						*Note: Dual Fuel	*Note: Dual Fuel
Pump 1					No Output
						option de-	option de-
(HP1)									Installer
						energizes Heat	energizes Heat
						mode stage 1	mode stage 1		Configuration		Fault or System
			24 volt			(compressor)	(compressor)		Menu selects
											Malfunction
						when auxiliary	when auxiliary		“O” or “B” for
			common					Blower/Circulator fan			Indicator for
				Heat mode-1st		heat is energized	heat is energized		changeover	Power closed
	24 volt	24 volt	(optional	stage,				energized on a call	function. Set	connection for	Heat Pumps
			for system					for cool or Fan On			with “L” terminal
	power for	power for		Cool mode-1st					to “O” terminal	SPDT 3-wire
			operation,			Heat mode-3rd	Heat mode-4th	(also energized in			connection.
	cooling	heating		stage,					energized in Cool
			required					heating if configured		zone valve	Original production
				(Compressor)		stage, Emergency	stage, Emergency		& Off mode. Set
			for remote			Mode-1st stage	Mode-2nd stage	for Electric Heat)	to “B” terminal		1F95-1291’s
			sensor)								do not have this
Heat					Heat mode-2nd				energized in
						*Note: Dual Fuel	*Note: Dual Fuel				connection
									Heat & mergency
Pump 2					stage,
						option de-	option de-		mode
(HP2)					Cool mode-2nd
						energizes Heat	energizes Heat
					stage,
						mode stages 1	mode stages 1
					(Compressor)
						and 2 (both	and 2 (both
						compressors)	compressors)
						when auxiliary	when auxiliary
						heat is energized	heat is energized

		NEUTRAL
120VAC	120VAC	24VAC
HEATING		HOT
	CLASS II
	TRANSFORMER

NEUTRAL
24VAC
			120VAC
HOT
			COOLING
*Dual fuel option, if selected turns off compressor(s) when Auxiliary stages energize.
		CLASS II
	TRANSFORMER

Heat Pump Connections

If you do not have a heat pump system, refer to figures 3 & 4. Refer to equipment manufacturers’ instructions for specific system wiring information.

You can configure the thermostat for use with the following heat pump systems.

HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas or electric backup.

HEAT PUMP TYPE 2 (HP 2). Multi-stage compressor or two compressor system with gas or electric backup.

After wiring, see INSTALLER CONFIGURATION section for proper thermostat configuration.

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