Wiring Diagrams - White Rodgers 1F85-0477 Installation And Operating Instructions Manual

WIRING DIAGRAMS

Heat Pump Connections
If you do not have a heat pump system, refer to figures 4-6.
Refer to equipment manufacturers' instructions for specific
system wiring information.
You can configure the thermostat for use with the following
heat pump systems.
L
System
Heat Pump 1
(HP1)
Fault Indicator
or System
Malfunction
Switch
Heat Pump 2
(HP2)
Comfort Alert II Module
or Similar System
Malfunction Module
Single Stage and Multi-Stage 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
fossil fuel systems:
Figure 4 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer
L
System
Single
Stage 1
Energized Constantly
Fault
(SS1)
in Cool Mode
Indicator
or
System
Multi-
Malfunction
Energized Constantly
Stage 2
Switch
in Heat, Off,
(MS2)
Emergency
System Malfunction
Module
Figure 3 – Heat Pump Systems
Y Y2
O/B
O
No
Energized in
Output
Cool Mode
Heat and
Cool Mode
B
1st Stage
Energized in
2nd
(Compressor)
Heat, Off,
Stage
Emergency
(Com-
Mode
pressor)
O/B Y Y2 W/E
O
No
Output
Heat
Cool Mode
Mode
1st Stage
B
1st Stage
Cool
Mode
2nd
Stage
Mode
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.
Jumper
W2 G
W/E
Heat Mode
Blower/
2nd Stage.
Circulator
Emergency
Fan Energized
Mode 2nd
Emergency on Call for
Stage
Mode Heat or Cool.
Heat Mode
1st Stage Set Elect/Gas
3rd Stage.
Option for
Emergency
Emergency
Mode 2nd
Mode
Stage
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.
Jumper
W2 G RH
Blower/
Circulator
No Output
Fan Energized
on Call for 24 Volt
Cool (and (Hot)
Heat if Heat
Heat Mode
configured
2nd Stage
for Electric
Heat)
Jumper
RH RC C
NOTE: If your system does
not provide an E connection,
jumper W2 to W/E to use
the Auxiliary Heat in the
Optional* Emergency Mode.
24 Volt
24 Volt
24 Volt
(Hot)
(Hot)
(Com-
Heat Cool
* Common connection
mon)
required for fault or
malfunction indication.
NEUTRAL
24VAC
HOT
CLASS II
TRANSFORMER
C
RC
* Common connection
required for fault or
Optional*
24 Volt
24 Volt
malfunction indication.
(Hot)
(Com-
Cool
mon)
NEUTRAL
24VAC
HOT
CLASS II
TRANSFORMER
120VAC
120VAC
3