Radio Thermostat CT102 User Manual page 21

4 Wire Heat Pump (heat/cool) without
Auxiliary Heat
1. Connect the O wire to the O
terminal or the B wire to the
B terminal. This connects the
change-over valve. If you have
both O and B, connect only the
O wire to the O terminal and DO
NOT connect B to B terminal (see
the Wire Reference Table on
2. Connect the Y wire to the Y terminal. This connects the
compressor.
3. Connect the R wire to the RH terminal. This connects the power.
4. Connect the G wire to the G terminal. This connects the fan.
5. Connect the C wire to the C terminal. Your HVAC system is now
connected to the CT102.
6. Go to "Connect Your Wires" on
Multi-stage Heat Pump with Multi-
Stage Aux Heat
The CT102 can handle up to 2
stages of Pump compression and 2
stages of AUX heat.
1. Connect O wire to the O terminal
or the B wire to the B terminal.
This connects the change-over
valve. If you have both O and B, connect only the O wire to the O
terminal and DO NOT connect B to B terminal (see Wire Reference
Table on page X for Trane terminal labels.).
2. Connect the AUX 1 and AUX 2 wires to the AUX 1 and AUX 2
terminals. This connects the auxiliary heat.
3. Connect the Y and Y2 wires to the Y and Y2 terminals. This
connects the compressor.
4. Connect the R wire to RH terminal. This connects the power.
5. Connect the G wire to the G terminal. This connects the fan.
6. Connect the C wire to the C terminal. Your HVAC system is now
connected to the CT102.
7. Go to "Connect Your Wires" on
Installation Guide CT102
Wiring Diagrams
POWER
or
C B O W
THERMOSTAT TERMINALS
page X for Trane terminal labels).
page X.
HVAC SYSTEM
C B O
POWER
or
or
C B O W
THERMOSTAT TERMINALS
page X.
HVAC SYSTEM
C B O Y R
or
W Y Y R RC G A
2 2 H
AUX1 AUX2 Y Y R
2
W Y Y R RC G A
2 2 H
G
G
21