Page 3.1
SECTION 3
Wire Connections
Wire Connections
TOTALINE
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
Power
Rh, R, M, Vr, A
R
C
O/B
C
Common
Rev. Valve
W2
2nd Stage Heat
RS+5
Remote 5vdc
RS+5
RSGND
Remote Sensor Ground
RSGND
W1/O/B**
W2
RS2
RS2
Remote Sensor Signal #2
3
Summary of Contents for P374-1 700
Page 3: ......
