Wire Reference Table - Radio Thermostat CT200 User Manual

Wire Reference Table

Possible
Wires
R or V or VR
RH or 4
RC
W
W2
W3
Y
Y2
G or F
C or X
H
DH
EX
B
O
B and O
E
L
T
Vivint Element CT200 Installation Guide
What They Control
RH and RC Single power for HEAT and COOL
RH Power for HEAT (RH not connected to RC jumper clip
removed)
RC Power for COOL (RH not connected to RC jumper clip
removed)
W 1st stage HEAT or 1st stage auxiliary heat
W2 2nd stage HEAT or 2nd stage auxiliary heat
W3 3rd stage HEAT or 2nd stage of 2 stage auxiliary heat
Y COOL control or 1st stage compression for heat pump
Y2 2nd stage COOL control or 2nd stage compression for
a heat pump
G FAN control
C 24VAC power (to power thermostat) NOTE: TRANE uses B
for this connection
H External Humidifier
DH External De-Humidifier
EX external fresh air baffle
B Heat pump changeover (cool to heat, powered in heat)
O Heat pump changeover (heat to cool, powered in cool)
IMPORTANT: If there are both B and O wires (Trane pump
products) DO NOT CONNECT B to B terminal Instead,
connect B to C terminal. If not a Trane product, tape off B.
n/a Emergency heat (do not connect, tape off)
n/a System monitor (do not connect, tape off)
n/a Outdoor sensor (do not connect, tape off)
Wiring Diagrams
23