Emerson White Rodgers 1F95-0680 Installation And Operating Instructions Manual page 4

WIRING DIAGRAMS
L
O/B
System
O
Heat Pump 1
Energized in
(HP1)
Cool Mode
Diagnostic
Indicator
B
or System
Energized in
Malfunction
Heat Pump 2
Heat, Off,
Switch
(HP2)
Emergency
Mode
Comfort Alert II Module
or Similar System
Diagnostic Module
See Module Instructions
for details
Heat Pump 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
systems:
Figure 5 – 3-Wire (SPDT) Heat Only Zone Valve Wiring
6
System
Single Stage
3-wire
Closes
Zone Valve
Valve
application
(6)
4
Figure 4 – Heat Pump Systems
Y Y2 +
W/E
Heat Mode - 2nd
Stage, Emergency
Mode - 1st Stage
Note: Dual Fuel option
No +
de-energizes Heat mode
Output
stage 1 (compressor)
Heat and
when auxiliary heat
Cool Mode
is energized
1st Stage
Heat Mode - 3rd
2nd
(Compressor) Stage, Emergency
Stage
Mode - 1st Stage
(Com-
Note: Dual Fuel option
+
de-energizes Heat mode
pressor)
stage 1 (compressor)
when auxiliary heat
is energized
* Common connection required for diagnostic or malfunction indication.
Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize.
+
W
Y G
Blower/Circulator
Opens
Fan Energized
Valve
(4)
Jumper
W2 G RH
+
Heat Mode - 3rd
Stage, Emergency
Mode - 2nd Stage
Blower/
Note: Dual Fuel option
+ Circulator Fan
de-energizes Heat mode
Energized on
stage 1 (compressor)
24 Volt
when auxiliary heat
Call for Heat
is energized
(Hot)
or Cool.
Heat Mode-4th
Heat
Set Elect/Gas
Stage. Emergency
Option for
Mode - 2nd Stage
Emergency
+ Note: Dual Fuel option
de-energizes Heat mode
mode
stage 1 (compressor)
when auxiliary heat
is energized
Heat PuMP tYPe 1 (HP 1).
system; 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 configuration.
Jumper
RH RC C
Constant
24 Volt
24 Volt
24 Volt
(Hot)
(Hot)
(Com-
Cool
Heat
mon)
(5)
C
RC A1
Time of
Day/
Optional*
(Economizer/
24 Volt
24 Volt
Damper)
(Hot)
(Com-
Energized
Cool
mon)
in Morn,
Day, Eve
Periods
NEUTRAL
120VAC
24VAC
HOT
CLASS II
TRANSFORMER
Single stage compressor
Multi-stage compressor or two
NEUTRAL
24VAC
HOT
CLASS II
TRANSFORMER
120VAC