White Rodgers 1F85-0422 Wiring Diagrams

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.
L
O/B
System
O
Energized in
Fault Indicator Cool Mode
or
Heat Pump 1
B
System
(HP1)
Malfunction
Energized in
Switch
Heat, Off,
Emergency
Mode
Comfort Alert II Module
or Similar System
Malfunction Module
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:
Figure 2 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer
System
Single
Fault
Stage 1
Indicator
(SS1)
or
System
Malfunction
Multi-
Switch
Stage 2
(MS2)
Comfort Alert II Module
or Similar System
Malfunction Module
Wiring Diagrams for 1F83-0422 & 1F85-0422
Figure 1 – Heat Pump Systems
Jumper
Y
Y2 W2
W/E
Heat Mode
Heat and
Emergency 2nd Stage.
Cool Mode No
Mode
Emergency
1st Stage Output
1st Stage Mode 2nd
(Compressor)
Stage
L
Y
O/B Y2
O
Energized Constantly
in
No
Heat
Cool Mode
Output
Mode
Cool Mode
1st Stage 1st Stage
B
Cool
Energized Constantly
Mode
in Heat, Off,
2nd
Emergency
Stage
Mode
www.white-rodgers.com
80 Series Thermostat
Single Stage, Multi-Stage, Heat Pump
HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas
or electric backup.
Jumper
G RH RC C
Blower/
Circulator
Fan Energized
Optional*
on Call for 24 Volt 24 Volt
24 Volt
Heat or Cool. (Hot)
(Hot)
(Com-
Set Elect/Gas Heat Cool
mon)
Option for
Emergency
Mode
NEUTRAL
24VAC
HOT
TRANSFORMER
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.
Jumper
W2 G RH RC
W/E
Blower/
Circulator
No Output
Fan Energized
24 Volt 24 Volt
on Call for
(Hot) (Hot)
Cool (and
Heat Cool
Heat if
Heat Mode
configured
2nd Stage
for Electric
Heat)
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.
120VAC
CLASS II
C
* Common connection
required for fault or
Optional*
malfunction indication.
24 Volt
(Com-
mon)
NEUTRAL
120VAC
24VAC
HOT
CLASS II
TRANSFORMER
PART NO. 37-6895B
Replaces 37-6895A
0825