Lightstat TG Series - Thermostat Layout

TGHC Heating/
Cooling Thermostat Specications:
The TGHC is a single stage heat/cool ther-
mostat.
This thermostat cannot be used on:
1. Millivolt systems (self generating systems
that do not have a transformer or relay).
2. Two transformer systems using RC and
RH wires.
3. Heat pump systems.
4. Line voltage (120 VAC) systems directly.
Thermostat Layout
TGHC Wiring Diagram
6
TGHP Heat Pump Thermostat
Specications:
The TGHP is a single stage heat/cool
thermostat for heat pump applications.
This thermostat cannot be used on:
1. Millivolt systems (self generating systems
that do not have a transformer or relay).
2. Two transformer systems using RC and
RH wires.
3. DC voltage systems.
4. Line voltage (120 VAC) systems directly.
Note: TGHP models do not have
lock on/lock off timers for backup heating.
Operation is strictly temperature dependent.
Note: This model may be powered at all
times even when the switch is in the “OFF”
postion. (model dependent feature)
TGHP Wiring Diagram
Warning:
Never connect a common or
neutral wire to the Lightstat.
This will cause damage to the
Lightstat.