White Rodgers 1F95EZ-0671 Wiring Diagrams, with Single Transformer, with Two Transformers

WIRING DIAGRAMS

Figure 2 – Single Stage or Multi-Stage System (No Heat Pump)

with Single Transformer

Jumper

	L	O/B	Y	Y2	W/E	W2	G	RH	RC	C	6
System
Single	Diagnostic	O					Blower/
		Energized Constantly
Stage 1						No Output	Circulator
	Indicator	in		No
(SS1)					Heat		Fan Energized	24 Volt	24 Volt	Optional*
	Input	Cool Mode
			Cool Mode	Output	Mode		on Call for	(Hot)	(Hot)	24 Volt
	or
	System	B	1st Stage		1st Stage		Cool (and	Heat	Cool	(Com-
Multi-	Malfunction			Cool		Heat Mode	Heat if			mon)
Stage 2	Switch	Energized Constantly		Mode		2nd Stage	configured
		in Heat, Off,
(MS2)	Input			2nd			for Electric
		Emergency		Stage			Heat)
		Mode

Single Stage, Multi-Stage and Heat Pump Connections

Refer to equipment manufacturers' instructions for specific system wiring information.

This thermostat is designed to operate a single-transformer or two-transformer system.

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

SINGLE STAGE (SS 1) gas, oil or electric.

MULTI-STAGE (MS 2) gas, oil or electric.

or Similar System	NEUTRAL		HEAT PUMP TYPE 1 (HP 1). Single stage
Comfort Alert II Module
Diagnostic Module	24VAC	120VAC	compressor system; gas or electric backup.
See Module Instructions	HOT
for details			HEAT PUMP TYPE 2 (HP 2). Multi-stage
	CLASS II
	TRANSFORMER		compressor or two compressor system with
* Common connection required for diagnostic or malfunction indication.
			gas or electric backup.

Figure 3 – Single Stage or Multi-Stage System (No Heat Pump)

with Two Transformers

Remove Jumper Wire

Jumper between RH & RC

After wiring, see INSTALLER CONFIGURA- TION section for proper thermostat configura- tion.

L

O/B

Y

Y2

W/E

W2

G

RH

RC

C

System

Single

O

Blower/

Energized Constantly

Stage 1

No Output

Circulator

in

No

(SS1)

Diagnostic

Heat

Fan Energized

24 Volt

24 Volt

Optional*

Cool Mode

Indicator

Cool Mode

Output

Mode

on Call for

(Hot)

(Hot)

24 Volt

(Optional)

B

1st Stage

1st Stage

Cool (and

Heat

Cool

(Com-

Multi-

Cool

Heat Mode

Heat if

mon)

Stage 2

Energized Constantly

Mode

2nd Stage

configured

(MS2)

in Heat, Off,

2nd

for Electric

Emergency

Stage

Heat)

Mode

NEUTRAL

24VAC

120VAC

NEUTRAL

HOT

120VAC

24VAC

COOLING

HOT

CLASS II

HEATING

TRANSFORMER

CLASS II

TRANSFORMER

* Common connection required for diagnostic or malfunction indication.

Figure 4 – Heat Pump Systems

Jumper

L

O/B

Y

Y2

+W/E

+W2

G

RH

RC

C

6

System

Heat Mode - 2nd

Heat Mode - 3rd

O

Stage, Emergency

Stage, Emergency

Heat Pump 1

Mode - 1st Stage

Mode - 2nd Stage

Blower/

Energized in

No

+Note: Dual Fuel option

+Note: Dual Fuel option

Circulator Fan

(HP1)

Diagnostic

Cool Mode

Heat and

Output

de-energizes Heat mode de-energizes Heat mode

Energized on

Optional*

stage 1 (compressor)

stage 1 (compressor)

24 Volt

24 Volt

Indicator

Cool Mode

when auxiliary heat

when auxiliary heat

Call for Heat

24 Volt

or System

B

is energized

is energized

or Cool.

(Hot)

(Hot)

(Com-

1st Stage

2nd

Heat Mode - 3rd

Heat Mode-4th

Cool

Heat Pump 2

Malfunction

Energized in

(Compressor)

Stage, Emergency

Stage. Emergency

Set Elect/Gas Heat

mon)

(HP2)

Switch

Heat, Off,

Stage

Mode - 1st Stage

Mode - 2nd Stage

Option for

Emergency

(Com- +Note: Dual Fuel option

+Note: Dual Fuel option

Emergency

Mode

pressor)

de-energizes Heat mode de-energizes Heat mode

mode

stage 1 (compressor)

stage 1 (compressor)

when auxiliary heat

when auxiliary heat

is energized

is energized

Comfort Alert II Module
or Similar System	NEUTRAL
Diagnostic Module	24VAC

See Module Instructions HOT

120VAC

for details

* Common connection required for diagnostic or malfunction indication.

CLASS II

+Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize.

Figure 5 – 3-Wire (SPDT) Heat Only Zone Valve Wiring

				Jumper
6	Y	W	G	RH RC	C

System

Single Stage 3-wire Zone Valve application

Closes

Valve

(6)

Opens

Valve

(4)

Blower/Circulator

Fan Energized

24 Volt	24 Volt	Constant
		24 Volt
(Hot)	(Hot)	(Com-
Heat	Cool	mon)
(5)

NEUTRAL

24VAC

HOT

120VAC

CLASS II

TRANSFORMER

3