______________________________________________________
WTS32 Wireless Thermostat
950-0160revB February 2, 2012
20
Heat Pump Terminal Outputs
Refer to equipment manufacturers' instructions for specific system wiring information. You can configure the thermostat for use
with the following heat pump system types: Single stage compressor system; gas or electric backup. This thermostat is designed
to operate a single-transformer system.
Dual Transformer System:
If you have a two-transformer system, cut and tape off one transformer. If transformer safety circuits are in only one of the
systems, remove the transformer of the system with NO safety circuits. If required, replace remaining transformer with a 75VA
Class II transformer. After disconnecting one transformer, the two commons must be connected together. Use the terminal
output information below to help you wire the thermostat properly for your heat pump system.
After wiring, see CONFIGURATION section for proper thermostat configuration.
THERMOSTAT TERMINALS (HEAT PUMP)
SYSTEM
Single Compressor
Dual Compressor
C
24 VAC (Common)
R
24 VAC (Hot)
E/W1
Emergency Mode 1st stage
W2
HP 1 and Emergency 2nd stage
Y1
Heat and Cool mode 1st stage (compressor)
Y2
No output
2nd stage compressor
G
Blower/Fan Energized on call for Heat and Cool
Set GAS/ELEC switch for Emergency mode
O
Energized in Cool Mode
B
Energized in Heat Emergency mode
