User Manual

PG
19
Wire Reference cont.
Possible Wires What They Control
Lennox Heat Pump
V or VR or R RH Power for HEAT
M or Y Y COOL control
Y or W or W2 W2 2nd stage HEAT or 2nd stage
heat pump auxiliary heat
F or G G Fan control
R or O O
X or X2 or C C
Trane Products [American Standard]
B C 24VAC power (to power thermostat)
W or W1 W 1st stage normal HEAT or 1st
stage heat pump auxiliary heat
X2 Emergency heat (do not connect, tape off)
C
Zoned Hot Water Heat -
For Solenoid valve or Motor valve connect the
wires based on diagrams below to the correct
terminal on the CT110. The third wire on your
valve may be called 6, Y, or G.
Your Wires...
2 wire Thermostat Terminal
R RH
W W
3 Wire
Solenoid Valves
R RH (power)
W A (heat ON)
Y or G (the 3rd wire) W (heat OFF)
SOLENOID VALV
E
W
A RH
CT32
MOTOR VALVE
W
RH A
CT32
FORR
3
WIRE
HOT WATER
W
R
A
W
R
A