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WIRING
Refer to equipment manufacturer's instructions for specific system wiring information. After wiring, see
INSTALLER MENU for proper thermostat configuration. Wiring table shown are for typical systems and
describe the thermostat terminal functions. Wiring will change when dedicated emergency heat is on
(See Installer Menu #15).
Terminal Designations
6 (not shown) - 3 wire zone valve
Precautions
• Do not exceed the specification ratings.
• All wiring must conform to local and national electrical codes and ordinances.
• This control is a precision instrument, and should be handled carefully. Rough handling or
distorting components could cause the control to malfunction.
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will burn
out thermostat and could cause personal injury
Do not allow the compressor to run unless the compressor oil heaters have been operational
2
THERMOSTAT INSTALLATION
RC
RH
O/B
Y
G
W/E
C
L
Y2
W2
WARNING
!
cause shock or fire hazard.
and/or property damage.
To prevent compressor and/or property damage, if the outdoor temperature is below 50°F,
DO NOT operate the cooling system.
for 6 hours and the system has not been operational for at least 5 minutes.
Terminal Function
Power (24V) - Cooling
Power (24V) - Heating
Reversing Valve or output for 3 wire zone valves
Configurable as "O" or "B" Reversing Valve or 3 wire zone
heat (power close)
1st Stage Compressor (conventional or heat pump)
Fan Relay
1st Stage Heat (conventional);
1st Stage Auxiliary Heat (heat pump)
Can operate as Emergency Heat only
(See Installer Menu #15)
Common wire for 24V (optional with batteries)
Heat Pump Malfunction / Diagnostic terminal
(input signal requires common)
2nd Stage compressor (conventional only)
2nd Stage Heat (Conventional)
Can operate as 1st Stage Auxiliary Heat
(See Installer Menu #15)
To prevent electrical shock and/or equipment
damage, disconnect electrical power to system,
at main fuse or circuit breaker box,until
installation is complete.
CAUTION
!
Leveling Thermostat
Leveling is for appearance only and
will not affect thermostat operation.
CAUTION
!
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