WHITE-RODGERS 1F95-1277 Universal Thermostat Owner’s Manual

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2

90 Series Blue Universal Thermostat  

Wiring Diagrams for 1F95-1277  

Single Stage, Multi-Stage, Heat Pump  

Heat Pump Connections  

If you do not have a heat pump system, refer to figures 2 & 3.  

Refer to equipment manufacturers' instructions for specific system  

wiring information.  

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 com-  

pressor system with gas or electric backup.  

After wiring, see INSTALLER CONFIGURATION section for proper  

thermostat configuration.  

You can configure the thermostat for use with the following heat  

pump systems.  

Figure 1 – Heat Pump Systems  

NOTE: If your system does not  

To Remote Temperature Sensor  

provide an E connection, jumper W2  

to W/E to use the Auxiliary Heat in the  

Emergency Mode.  

Jumper  

Jumper  

B

O

RC  

+

Y2  

Y

G

RH  

C

S

-

W2 W/E  

6

L

* 24 VAC common connection  

optional for system operation.  

System  

(Dual  

Fuel  

disabled)  

Emer-  

gency  

Heat  

Pump 1  

(HP1)  

Required for fault or malfunction indi-  

cation, remote temperature sensor, or  

for continuous backlight operation.  

Blower/  

Circula-  

tor Fan  

Energiz-  

ed on  

DC  

Power  

Closed  

Conn-  

ection  

for  

DC  

Return  

to  

No  

Output  

Fault  

Indicator  

or  

1st  

supply  

voltage  

to re-  

24 VAC  

Com-  

mon  

Remote  

Temp-  

erature  

Sensor  

signal  

Energiz-  

ed in  

Heat/  

Auxil-  

iary &  

Emer-  

gency  

Heat  

Stage  

Heat &  

Cool  

Energiz-  

ed in  

Cool  

heat  

2nd stage  

24 VAC  

(Hot)  

Heat  

24 VAC  

(Hot)  

Cool  

Remote  

Te mp-  

erature  

Sensor  

System  

Malfunc-  

tion  

mote  

(Dual  

Fuel  

enabled)  

Auxiliary  

& Emer-  

gency  

(option-  

al) *  

Emer-  

gency  

Mode  

(Com-  

pressor)  

**  

2nd  

& Off  

Mode  

call for  

Heat or  

Cool  

Te mp-  

erature  

Sensor  

3-wire  

zone  

valve  

Heat  

Pump 2  

(HP2)  

** Dual fuel option de-energizes  

compressor when auxiliary heat is  

energized.  

Stage  

Heat/  

Cool  

(Com-  

pressor)  

Comfort  

Alert II module  

or similar  

1st  

Stage  

Switch  

heat  

2nd stage  

malfunction  

module  

NEUTRAL  

24VAC  

HOT  

120VAC  

CLASS II  

TRANSFORMER  

Single Stage and Multi-Stage Connections  

Refer to equipment manufacturers' instructions for specific system  

wiring information.  

SiNglE STAgE (SS 1) gas, oil or electric.  

MUlTi-STAgE (MS 2) gas, oil or electric.  

After wiring, see INSTALLER CONFIGURATION section for proper  

thermostat configuration.  

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

transformer system.  

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

systems:  

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

To Remote Temperature Sensor  

Jumper  

B

O

RC  

+

Y2  

Y

G

RH  

C

S

-

W2 W/E  

6

L

System  

Blower/  

Circula-  

tor Fan  

Energiz-  

ed on  

Ener-  

gized  

* 24 VAC common connection  

optional for system operation.  

Single  

Stage 1  

(SS1)  

DC  

Power  

Closed  

Conn-  

ection  

for  

DC  

No  

Return Output  

No  

Output  

Fault  

Indicator  

or  

Cool  

Mode  

1st  

on call  

for  

Heat  

supply  

voltage  

to re-  

24 VAC  

Com-  

mon  

Remote  

Temp-  

erature  

Sensor  

signal  

Energiz-  

ed in  

Ener-  

gized  

in Heat  

Mode  

to  

Required for fault or malfunc-  

tion indication, remote temper-  

ature sensor, or for continuous  

backlight operation.  

24 VAC  

(Hot)  

Heat  

24 VAC  

(Hot)  

Cool  

Remote  

Te mp-  

System  

Malfunc-  

tion  

Stage  

(Com-  

pressor)  

Cool &  

Off  

Mode  

call for  

Cool &  

for Heat  

(if ELE  

is sel-  

mote  

(option-  

al) *  

Cool  

mode  

2nd  

Te mp-  

erature  

Sensor  

Heat  

Mode  

1st  

3-wire  

zone  

valve  

Heat  

Mode  

2nd  

erature  

Sensor  

Multi-  

Stage 2  

(MS2)  

Comfort  

Alert II module  

or similar  

Switch  

Stage  

(Com-  

pressor)  

Stage  

Stage  

malfunction  

module  

ected)  

NEUTRAL  

24VAC  

HOT  

120VAC  

CLASS II  

TRANSFORMER  

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

To Remote Temperature Sensor  

NOTE: If continuous backlight or hardwired  

power input are desired but do not function  

in both HEAT and COOL modes, cut the  

heating transformer 24V wires and tape off.  

Connect the neutral circuit disconnected  

from the heating transformer to the neutral  

circuit of the cooling transformer. Discon-  

nect the wire to the RH terminal and install  

a jumper between RH and RC. Depending  

on the system requirements, replace the  

cooling transformer with a 75VA class II  

transformer if needed.  

B

O

RC  

+

Y2  

Y

G

RH  

C

S

-

W2 W/E  

6

L

System  

Blower/  

Circula-  

tor Fan  

Energiz-  

ed on  

Ener-  

Single  

Stage 1  

(SS1)  

gized  

on call  

for  

DC  

No  

Output  

DC  

Return  

to  

No  

Output  

Power  

Closed  

Conn-  

ection  

for  

Cool  

Mode  

1st  

supply  

voltage  

to re-  

Fault  

Indicator  

or  

24 VAC  

Com-  

mon  

Remote  

Temp-  

erature  

Sensor  

signal  

Energiz-  

ed in  

Ener-  

gized  

in Heat  

Mode  

24 VAC  

(Hot)  

Heat  

24 VAC  

(Hot)  

Cool  

Heat  

Remote  

Te mp-  

erature  

Sensor  

Cool &  

Off  

Mode  

call for  

Cool &  

for Heat  

(if ELE  

is sel-  

Stage  

(Com-  

pressor)  

mote  

System  

Malfunc-  

tion  

(option-  

al) *  

Cool  

mode  

2nd  

Heat  

Mode  

2nd  

Temp-  

erature  

Sensor  

Heat  

Mode  

1st  

Multi-  

Stage 2  

(MS2)  

3-wire  

zone  

valve  

Comfort  

Alert II module  

or similar  

Switch  

Stage  

(Com-  

pressor)  

Stage  

Stage  

ected)  

malfunction  

module  

NEUTRAL  

24VAC  

HOT  

120VAC  

NEUTRAL  

24VAC  

HOT  

120VAC  

COOLING  

CLASS II  

TRANSFORMER  

HEATING  

CLASS II  

TRANSFORMER  

PART NO. 37-6808C  

www.white-rodgers.com  

Replaces 37-6808B  

0808  

https://manual-hub.com/  

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Name	WHITE-RODGERS 1F95-1277 Universal Thermostat Owner’s Manual
Make	WHITE RODGERS
Language	English
Filetype	PDF (Download)
File size	0.19 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• WHITE RODGERS

WHITE-RODGERS 1F95-1277 Universal Thermostat Owner’s Manual Overview

Summary of Contents

• Page 1: 90 Series Blue Universal Thermostat Wiring diagrams for 1F95-1277 Single stage, multi-stage, heat pump If you do not have a heat pump system, refer to figures 2 & 3. Refer to equipment manufacturers' instructions for specific system wiring information. After wiring, see installer configuration section for proper thermostat configuration. You can configure the thermostat for use with the following heat pump systems. This thermostat is designed to operate a single-transformer or two-transformer system. After wiring, see installer configuration section for proper thermostat configuration. Required for fault or malfunction indication, remote temperature sensor, or for continuous backlight operation.
• Page 2: Diagramas de conexiones del termostato universal Blue serie 90 para 1F95-1277. Conexiones de la bomba de calor. Si no tiene un sistema de bomba de calor, refiérase a las figuras 2 y 3. Puede configurar el termostato para utilizarlo con los siguientes sistemas de bombas de calor. Sistema de compresor de una sola etapa; sistema auxiliar de gas o eléctrico. Sistema de compresor multietapa o de dos compresores con sistema de gas o eléctrico auxiliar. Después de conectar el termostato, vea en la sección INSTALLER CONFIGURATION cómo configurarlo correctamente. Este termostato está diseñado para operar un sistema de un solo transformador o de dos transformadores. Refiérase a las instrucciones del fabricante del equipo para ver información más específica sobre las conexiones. Si desea iluminación constante de la luz de fondo o alimentación de entrada con cableado interno pero no desea que el sistema funcione en los modos HEAT y COOL, corte los cables de 24 V del transformador de calefacción y encíntelos.