Comfort-Aire TPRG Series - Manual (Page 4)

4
OPERATING INSTRUCTIONS
Thermostat styles vary. Some models may not include an AUTO
heat/cool changeover mode and others will have the AUTO heat/
cool changeover in addition to HEAT & COOL. Please refer to the
thermostat’s User manual for detailed programming instructions.
The thermostat should be mounted about 5 feet above the floor on
an inside wall and not on an outside wall or other location where its
operation may be adversely affected by radiant heat from fireplaces,
sunlight, or lighting fixtures, and convective heat from warm air
registers or electrical appliances.
Cooling Operation
1. Set the thermostat system mode to COOL and the thermostat
fan mode to AUTO. See Figure 1.
2. Set the thermostat temperature selector to the desired temperature
level. The outdoor fan, compressor, and indoor blower will all
cycle on and off to maintain the indoor temperature at the desired
cooling level.
NOTE: If the temperature level is re-adjusted, or the system
mode is reset, the fan and compressor in the outdoor unit may
not start immediately. There may be a protective timer circuit in
the thermostat which holds the compressor and the outdoor fan
off for approximately 5 minutes following a previous operation
or the interruption of the main electrical power.
Figure 1. Digital Thermostat
Fan
Mode
Temperature
Selector
System
Mode
Heating Operation
1. Set the thermostat system mode to Heat and the thermostat fan
mode to AUTO. See Figure 1.
2. Set the thermostat temperature selector to the desired temperature
level. The indoor blower and gas heat module will cycle on and
off to maintain the indoor temperature at the desired heating
level.
WARNING:
If overheating occurs, or the gas supply fails to
shut off, shut off the gas valve to the unit before
shutting off the electrical supply.
System Shutdown
Set the thermostat system mode to OFF (see Figure 1) and the
thermostat fan mode to AUTO.
NOTE: The system will not operate,
regardless of the thermostat temperature selector’s setting.
Continuous Indoor Blower Operation
The continuous indoor blower operation is typically used to circulate
the indoor air to equalize a temperature imbalance due to a solar
load, cooking, or fireplace operation.
Set the thermostat fan mode to ON (see Figure 1). The indoor blower
will start immediately and will run continually until the fan switch is
reset to AUTO.
NOTE: On some thermostat models the setting may
be called CONT.
The continuous indoor blower operation can be obtained with the
thermostat system switch set in any position, including OFF.
GAS HEATING / ELECTRIC COOLING UNITS
ABOUT THE GAS HEATING / ELECTRIC
COOLING UNIT
This gas heating unit with electric cooling has been designed and built
to provide many years of safe and dependable comfort, providing it is
properly installed and maintained. With regular maintenance, this unit
will operate satisfactorily year after year. Abuse, improper use, and/
or improper maintenance can shorten the life of the appliance and
create unsafe hazards. A regular service and maintenance schedule
should be established to ensure efficient and safe operation of the
unit. See System Maintenance on page 5.
This unit uses environmentally friendly R-410A refrigerant.