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ABOUT THE HEAT PUMP

Your heat pump is a unique, all weather comfort-control 
appliance that will heat and cool your home year round and 
provide energy saving comfort. It’s often not recognized 
that heat is always in the air, even when the outside 
temperature is below freezing. The heat pump uses 
this basic fact of physics to provide energy saving heat 
during the winter months. For example, If the outdoor 
temperature is 47° F (8° C), your heat pump can deliver 
approximately 3.5 units of heat energy per each unit of 
electrical energy used, as compared to a maximum of 
only 1 unit of heat energy produced with conventional 
electric heating systems.

In colder temperatures, the heat pump performs like an air 
conditioner run in reverse. Available heat energy outside 
the home is absorbed by the refrigerant and released 
inside the home. This efficient process means you only 
pay for “moving” the heat from the outdoors to the indoor 
area. You do not pay to generate the heat, as with more 
traditional means of heating.

During summer, the heat pump reverses the flow of the 
heat-absorbing refrigerant to become an energy-efficient, 
central air conditioner. Excess heat energy inside the 
home is absorbed by the refrigerant and released outside 
the home.

OPERATING INSTRUCTIONS

Thermostat styles vary. Please refer to the thermostat 
manufacturer’s User manual for detailed programming 
instructions.

Cooling Operation Only

1. Set the thermostat’s system mode to COOL and change 

the fan mode to AUTO.

2. Set the temperature selector to the desired temperature 

level. The outdoor fan, compressor, and blower motor 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. A protective 
timer circuit holds the compressor and the outdoor 
fan off for typically 3 to 5 minutes following a previous 
operation or the interruption of the main electrical power 
before restarting.

3. When the difference between temperature setpoint 

and actual room temperature is relatively small, the 
unit will operate at stage 1 and a lower indoor blower 
air flow rate is used. When that temperature difference 
is higher than some value (determined by the specific 
themostat used), the unit will operate at Stage 2, and a 
higher air flow rate will be used. The outdoor equiment 
will operate at one or more different speeds in each of 
these stages, depending on the heat pump model.

Heating Operation Only

1. Set the thermostat’s system mode to HEAT and change 

the fan mode to AUTO.

2. Set the temperature selector to the desired temperature 

level. The compressor, outdoor fan, and blower motor 
will cycle on and off to maintain the indoor temperature 
at the desired heating 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. A protective 
timer circuit holds the compressor and the outdoor 
fan off for typically 3 to 5 minutes following a previous 
operation or the interruption of the main electrical power 
before restarting.

3. When the difference between temperature setpoint 

and actual room temperature is relatively small, the 
unit will operate at stage 1 and a lower indoor blower 
air flow rate is used. When that temperature difference 
is higher than some value (determined by the specific 
themostat used), the unit will operate at Stage 2, and a 
higher air flow rate will be used. The outdoor equiment 
will operate at one or more different speeds in each of 
these stages, depending on the heat pump model.

Emergency Heat

Many thermostats include a system operating mode called 
Emergency Heat (abbreviated EM HT or AUX HT, etc). In 
this mode, heating is provided solely by the backup means 
(electric strip heat or gas furnace), and the heat pump 
is not used. This may typically be selected by the user 
when there is a problem with the heat pump equipment, 
when the outdoor temperature is too low for heat pump 
operation, or for any other reason or preference. Some 
thermostats automatically revert to backup heating means 
under certain conditions. Refer to the thermostat manual. 
The user is advised to avoid using Emergency Heat except 
under exceptional circumstances, since the energy costs 
are likely to be significantly higher than with the heat pump

Defrost Operation

During cold weather heat pump operation, the outdoor unit 
will develop a coating of snow and ice on the heat transfer 
coil. This is normal and the unit will defrost itself. This unit 
features Demand Defrost that monitors ambient and coil 
temperatures to regulate the defrost function accordingly.

At the beginning of the defrost cycle, both the outdoor 
condenser fan and compressor will turn off. After a brief 
delay, the compressor will turn on and begin to heat the 
outdoor coil causing the ice and snow to melt. 

NOTE: 

While the ice and snow is melting, some steam may rise 
from the outdoor unit as the warm coil causes the melting 
frost to evaporate. When defrost is completed, the outdoor 
fan motor will start, and the compressor will turn off again. 
After a brief delay, the compressor will start up again and 
continue normal operation.

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Страница 1: ...thoroughly before using the equipment Follow all precautions and warnings contained within these instructions and on the unit Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance DO NOT DESTROY PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE WARNING To achieve optimum performance and minimize equipment failure it is r...

Страница 2: ...pump model Heating Operation Only 1 Set the thermostat s system mode to HEAT and change the fan mode to AUTO 2 Setthetemperatureselectortothedesiredtemperature level The compressor outdoor fan and blower motor will cycle on and off to maintain the indoor temperature at the desired heating level NOTE If the temperature level is re adjusted or the system mode is reset the fan and compressor in the o...

Страница 3: ...or tripped circuit breakers Check the filters for dust accumulation Checktheunitandmakesureitiscleanandnotcovered with grass or leaves If the items above don t resolve your problems then call your nearest service technician HEAT PUMP MAINTENANCE WARNING This heat pump contains liquid and gaseous refrigerant under pressure Installation and servicingshouldonlybeattemptedbyqualified trained personnel...

Страница 4: ...the unit to ensure that it is physically sound without sagging cracks gaps etc Air Filters WARNING Never operate the unit without a filter in the return air system Dust and lint in the return air can build up on the internal components resulting in loss of efficiency equipment damage and possible fire risk Inspect and clean or replace air filters at the beginning ofeachheatingandcoolingseason ormo...

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