Single Stage Compressor; No Heat Pump (Ss1); Multi Stage 2; No Heat Pump (Ms2) - White Rodgers 1F95-1291 Install And Operation Instructions

WIRING DIAGRAMS

System
RC RH C
Single Stage 1
(SS1)
24 volt
common
(optional
24 volt 24 volt
for system
power for
power for
operation,
cooling heating
required

Multi Stage 2

for remote
(MS2)
sensor)
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:
System RC
Heat
Pump 1
(HP1)
24 volt
power for
cooling
Heat
Pump 2

(HP2)

NEUTRAL
120VAC
24VAC
120VAC
HOT
HEATING
CLASS II
TRANSFORMER
Heat Pump Connections
If you do not have a heat pump system, refer to fi gures 3 & 4.
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 2 – Single Stage or Multi-Stage System
(No Heat Pump) with Single Transformer
Y Y2 W/E
Call for cool No Output Call for heat
Cool mode-1st Cool mode-2nd Heat mode-1st
stage stage
stage
Figure 3 – Heat Pump Systems
RH C Y Y2
No Output
24 volt
common
Heat mode-1st
(optional
24 volt stage,
for system
power for
Cool mode-1st
operation,
heating stage,
required
(Compressor)
for remote
sensor)
Heat mode-2nd
stage,
Cool mode-2nd
stage,
(Compressor)
*Dual fuel option, if selected turns off compressor(s) when Auxiliary stages energize.
W2 G
No output
Blower/Circulator fan
energized on a call
for cool or Fan On
(also energized in
energized in Cool
heating if configured
Heat mode-2nd
& Off mode. Set
for Electric Heat)
stage
Heat & mergency
SINGLE STAGE (SS 1)
MULTI-STAGE (MS 2)
After wiring, see INSTALLER CONFIGURATION section for proper
thermostat confi guration.
*W/E *W2 G
Heat mode-2nd Heat mode-3rd
stage, Emergency stage, Emergency
Mode-1st stage Mode-2nd stage
*Note: Dual Fuel *Note: Dual Fuel
option de- option de-
energizes Heat energizes Heat
mode stage 1 mode stage 1
(compressor) (compressor)
when auxiliary when auxiliary
Blower/Circulator fan
heat is energized heat is energized
energized on a call
for cool or Fan On
(also energized in
Heat mode-3rd Heat mode-4th
heating if configured
stage, Emergency stage, Emergency
for Electric Heat)
Mode-1st stage Mode-2nd stage
*Note: Dual Fuel *Note: Dual Fuel
option de- option de-
energizes Heat energizes Heat
mode stages 1 mode stages 1
and 2 (both and 2 (both
compressors) compressors)
when auxiliary when auxiliary
heat is energized heat is energized
HEAT PUMP TYPE 1 (HP 1)
gas or electric backup.
HEAT PUMP TYPE 2 (HP 2).
compressor system with gas or electric backup.
After wiring, see INSTALLER CONFIGURATION section for proper
thermostat confi guration.
O/B 6 L
Installer
Configuration
Fault or System
Menu selects
Malfunction
"O" or "B" for
Indicator for
changeover
Power closed
Heat Pumps
function. Set
connection for
with "L" terminal
to "O" terminal
SPDT 3-wire
connection.
zone valve
Original production
1F95-1291's
to "B" terminal
do not have this
energized in
connection
mode
NEUTRAL
24VAC
HOT
CLASS II
gas, oil or electric.
TRANSFORMER
gas, oil or electric.
O 6 L
Installer
Configuration
Fault or System
Menu selects
Malfunction
"O" or "B" for
Indicator for
changeover
Power closed
Heat Pumps
function. Set
connection for
with "L" terminal
to "O" terminal
SPDT 3-wire
connection.
energized in Cool
zone valve
Original production
& Off mode. Set
1F95-1291's
to "B" terminal
do not have this
energized in
connection
Heat & mergency
mode
NEUTRAL
24VAC
HOT
TRANSFORMER
.
Single stage compressor system;
Multi-stage compressor or two
120VAC
120VAC
COOLING
CLASS II
3