Operating Your Heat Pump - Carrier HEAT PUMP Manual

CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE,
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
Fig. 2—Typical Carrier Non-Programmable Thermostat
of the indoor cooling coil. Check this occasionally to be sure
the drain system is not clogged. Of course, don't expect to see
much drainage if you live in a very dry environment.
• During the heating cycle, air from your registers may seem
cooler than you might first expect. This is because your heat
pump delivers a constant flow of air at around 90 ° F to 105 ° F
instead of in sudden bursts of hot air as with a conventional
furnace. This air may feel cool because it is slightly less than
your skin temperature. However, it is sufficiently warm to
keep you comfortable.
• Ice or frost will tend to form on the outdoor coil during the win-
ter heating operation. Your heat pump is designed to automatical-
ly melt the ice. When in this defrost cycle, it is normal for steam
or fog to rise from the outdoor unit. Do not be alarmed!
PROGRAM BUTTONS
FOR PROGRAMMING
HEATING/COOLING
CYCLES.
LCD READOUT DISPLAYS
UNIT MODE SETTING,
AND FAN MODE SETTING.
RESET/FILTER
FAN
FAN BUTTON CHOOSES
BETWEEN ON OR AUTO
FAN OPERATION
MODE BUTTON SELECTS
BETWEEN OFF, HEAT,
COOL, AUTO, AND
EMERGENCY HEAT
OPERATION.
COPY PREVIOUS DAY PROGRAM
CHANGE DAY END PROGRAM
SET TIME RESET FILTER
SET TIME
BUTTON
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
Fig. 3—Typical Carrier Programmable Thermostat
MODE
MODE BUTTON SELECTS
BETWEEN OFF, HEAT,
COOL, AUTO, AND EMERGENGY
HEAT OPERATION.
• Do not operate your unit in cooling mode when outdoor
temperatures are below 55 ° F unless your unit was modified
for low-ambient operation.
• Do not operate your unit in heating mode when outdoor
temperatures are above 66 ° F unless you set your thermostat
to emergency heat mode.

OPERATING YOUR HEAT PUMP

The operation of your heat pump system is controlled by the
indoor thermostat. You simply adjust the thermostat and it
maintains the indoor temperature at the level you select. Most
thermostats for heat pump systems have 3 controls: a temper-
ature control selector, a FAN control, and a SYSTEM or
MODE control.
LCD READOUT DISPLAYS
CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE
OR OUTDOOR TEMPERATURE,
UNIT MODE SETTING,
FAN MODE SETTING,
AND TIME OF DAY.
MODE
FAN
HOLD
FAN BUTTON CHOOSES
BETWEEN ON OR AUTO
FAN OPERATION
HOLD BUTTON MAINTAINS
THE CURRENT TEMPERATURE
AND OVERRIDES PROGRAMMED
TEMPERATURE CHANGES
UNTIL RESET.
3
UP AND DOWN
BUTTONS INCREASE
OR DECREASE THE
DESIRED TEMPERATURE
SETTINGS.
UP AND DOWN
BUTTONS INCREASE
OR DECREASE THE
DESIRED TEMPERATURE
SETTINGS.