White Rodgers 1F85-0422 User Manual
80 Series Thermostat
Wiring Diagrams for 1F83-0422 & 1F85-0422
Single Stage, Multi-Stage, Heat Pump
Heat Pump Connections
If you do not have a heat pump system, refer to fi gures 2 & 3.
Refer to equipment manufacturers’ instructions for specifi c system
wiring information.
You can confi gure the thermostat for use with the following heat
pump systems.
Refer to equipment manufacturers’ instructions for specifi c system
wiring information.
You can confi gure the thermostat for use with the following heat
pump systems.
Figure 1 – Heat Pump Systems
HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas
or electric backup.
or electric backup.
NOTE: If your system
does not provide an E
connection, jumper W2 to
W/E to use the Auxiliary
Heat in the Emergency
Mode.
* Common connection
required for fault or
malfunction indication.
Single Stage and Multi-Stage Connections
Refer to equipment manufacturers’ instructions for specifi c system
wiring information.
This thermostat is designed to operate a single-transformer or two-
transformer system.
You can confi gure the thermostat for use with the following fossil fuel
systems:
wiring information.
This thermostat is designed to operate a single-transformer or two-
transformer system.
You can confi gure the thermostat for use with the following fossil fuel
systems:
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 confi guration.
MULTI-STAGE (MS 2) gas, oil or electric.
After wiring, see INSTALLER CONFIGURATION section for proper
thermostat confi guration.
Figure 2 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer
* Common connection
required for fault or
malfunction indication.
www.white-rodgers.com
PART NO. 37-6895B
Replaces 37-6895A
0825
Heat Pump 1
(HP1)
(HP1)
O
Energized in
Cool Mode
B
Energized in
Heat, Off,
Emergency
Mode
No
Output
Output
Heat and
Cool Mode
1st Stage
(Compressor)
Cool Mode
1st Stage
(Compressor)
Blower/
Circulator
Fan Energized
on Call for
Heat or Cool.
Set Elect/Gas
Option for
Emergency
Mode
Circulator
Fan Energized
on Call for
Heat or Cool.
Set Elect/Gas
Option for
Emergency
Mode
Heat Mode
2nd Stage.
Emergency
Mode 2nd
Stage
2nd Stage.
Emergency
Mode 2nd
Stage
Emergency
Mode
1st Stage
Mode
1st Stage
Optional*
24 Volt
(Com-
mon)
Fault Indicator
or
System
Malfunction
Switch
or
System
Malfunction
Switch
24 Volt
(Hot)
Cool
(Hot)
Cool
System
Y
W/E
C
L
RC
CLASS II
TRANSFORMER
HOT
24VAC
NEUTRAL
120VAC
24 Volt
(Hot)
Heat
(Hot)
Heat
RH
Jumper
Y2
W2
G
Jumper
Comfort Alert II Module
or Similar System
Malfunction Module
O/B
Single
Stage 1
(SS1)
Stage 1
(SS1)
Multi-
Stage 2
(MS2)
Stage 2
(MS2)
O
Energized Constantly
in
Cool Mode
B
Energized Constantly
in Heat, Off,
Emergency
Mode
No
Output
Output
Cool
Mode
2nd
Stage
Mode
2nd
Stage
Cool Mode
1st Stage
1st Stage
Blower/
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)
No Output
Heat Mode
2nd Stage
2nd Stage
Heat
Mode
1st Stage
Mode
1st Stage
Optional*
24 Volt
(Com-
mon)
24 Volt
(Hot)
Cool
(Hot)
Cool
System
Y
G
W/E
C
L
RC
CLASS II
TRANSFORMER
HOT
24VAC
NEUTRAL
120VAC
24 Volt
(Hot)
Heat
(Hot)
Heat
RH
Y2
W2
Jumper
Fault
Indicator
or
System
Malfunction
Switch
Indicator
or
System
Malfunction
Switch
Comfort Alert II Module
or Similar System
Malfunction Module
O/B