Справочник Пользователя для Nordyne R-410A

Скачать
Страница из 20
4
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 an unknown fact that heat is always 
in the air, even when the outside temperature is 
below freezing. The heat pump uses this basic 
law 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 
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 exhausted inside the home. 
This effi cient 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 furnace designs.
During summer, the heat pump reverses the fl ow 
of the heat-absorbing refrigerant to become an 
energy-effi cient, central air conditioner. Excess 
heat energy inside the home is absorbed by the 
refrigerant and exhausted outside the home.
OPERATING INSTRUCTIONS
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 
or AUTO and change the fan mode to AUTO. 
See Figure 1
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 approximately three 
minutes following a previous operation or the 
interruption of the main electrical power.
Heating Operation Only
1.  Set the thermostat’s system mode to HEAT 
or AUTO and change the fan mode to AUTO. 
See Figure 1.
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 approximately three 
minutes following a previous operation or the 
interruption of the main electrical power.
Emergency Heat
Some thermostats may include a system mode 
called EM HT or AUX HT, etc. This is a back-
up heating mode that should only be used if a 
problem is suspected. With the mode set to EM 
HT, etc., the compressor and outdoor fan will 
be locked off and supplemental heat (electric 
resistance heating) will be used as a source of 
heat. Sustained use of electric resistance heat in 
place of the heat pump will result in an increase 
in electric utility costs.
Defrost Operation
During cold weather heating operation, the 
outdoor unit will develop a coating of snow 
and ice on the heat transfer coil. This is normal 
USER INFORMATION
SAFETY INFORMATION
IMPORTANT: Safety markings are used 
frequently throughout this manual to designate 
a degree or level of seriousness and should not 
be ignored. WARNING indicates a potentially 
hazardous situation that if not avoided, could 
result in personal injury or death. CAUTION 
indicates a potentially hazardous situation that 
if not avoided, may result in minor or moderate 
injury or property damage.
Figure 1. Digital Thermostat
Fan
Mode
Temperature
Selector
System
Mode