2GIG CT100 - Manual (Page 17)

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Wire Reference Table
Possible Wires What They Control
R or V or VR RH
and RC Single power for HEAT and COOL
RH or 4 RH
Power for HEAT (RH not connected to RC jumper wire removed)
RC RC
Power for COOL (RH not connected to RC jumper wire removed)
W W
Heat control
W2 W2
2nd stage HEAT
AUX or AUX1 AUX1
1st stage of AUX heat in the CT100
AUX2 AUX2
2nd stage of AUX heat in the CT100
Y Y
COOL control or 1st stage compression for heat pump
Y2 Y2
2nd stage COOL control or 2nd stage compression for a heat pump
G or F G
FAN control
C or X C
24VAC power (to power thermostat)
NOTE: TRANE, AMERICAN STANDARD and YORK often use the letter B for C
H H
External Humidiier
DH DH
External Dehumidiier
EX EX
external fresh air bafle
B B
Heat pump changeover (cool to heat, powered in heat)
O O
Heat pump changeover (heat to cool, powered in cool)
B and O IMPORTANT: If there are both B and O wires (Trane pump
products) DO NOT CONNECT B to B terminal, connect B to C
terminal.
E
n/a Emergency heat (do not connect, tape off)
L
n/a System monitor (do not connect, tape off)
T
n/a Outdoor sensor (do not connect, tape off) Wire Reference