Page 4.1
SECTION 4
Wire ConnectionsWire Connections
4
If the terminal designations on your old thermostat
do not match those on the new thermostat, refer
to the chart below, or the wiring diagrams
that follow.
* O/B is used if your system is a Heat Pump.
Wire from the
old thermostat
terminal marked
Function
Install on the
new thermostat
connector marked
G or F Fan G
Y1, Y or C
Cooling Y1
W1, W or H
Heating
W1/O/B
PowerRh, R, M, Vr, A R
C
O/B
C
Common
Rev. Valve
W2
2nd Stage Heat
RS+5
Outside Sensor +5vdc
RS+5
RSGND
Outside Sensor Ground
RSGND
W1/O/B*
W2
MISC1
MISC2
MISC3
MISC1
MISC2
MISC3
Configurable Output #1
Configurable Output #2
Configurable Output #3
RS2 RS2
Outside Sensor Signal #2
Carrier
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