COOLING CYCLE
Switch your thermostat to cool. Select a comfortable thermostat temperature setting, typically between 75 and 80°. Comfort sensations vary with individu- als. The lower the indoor temperature desired, the greater will be the number of hours your unit must operate.
Set your thermostat 2 or 3°F below normal several hours before entertain- ing large groups during hot weather. People give off considerable heat and moisture.
On an extremely hot day, the indoor temperature may rise 3 to 6°F above the thermostat setting. Properly selected equipment does not have the capacity to maintain a constant indoor temperature during the peak load.
| COOL |
DISCHARGED | SUPPLY AIR |
HEATED AIR |
|
OUTDOOR |
|
AIR INTAKE |
|
| WARM HOUSE AIR |
FIGURE 2:
TO MAXIMIZE OPERATING EFFICIENCY
HEATING CONSERVATION
For the most efficient operation, keep storm windows and doors closed all year long. They not only help insulate against heat and cold, but they also keep out dirt, pollen and noise.
Closing drapes at night, keeping fire- place dampers closed when not in use, and running exhaust fans only when necessary will help you to retain the air you have already paid to heat.
Keep lamps, televisions, or other heat producing sources away from the ther- mostat. The thermostat will sense this extra heat and will not be able to main- tain the inside temperature to the desired comfort level.
COOLING CONSERVATION
To comfortably cool your home, your air conditioner must remove both heat and humidity. Don't turn your system off even though you will be away all day. On a hot day, your system may have to operate between 8 to 12 hours to reduce the temperature in your home to a normal comfort level.
Keep windows closed after sundown. While the outdoor temperature at night may be lower than indoors, the air is generally loaded with moisture which is soaked up by furniture, carpets, and fabrics. This moisture must be removed when you restart your sys- tem.
The hotter the outside temperature, the greater the load on your system. Therefore do not be alarmed when your system continues to run after the sun has set on a hot day. Heat is stored in your outside walls during the day and will continue to flow into your home for several hours after sunset.
Use your kitchen exhaust fan when cooking. One surface burner on "HIGH" requires one ton of cooling. Turn on your bathroom exhaust fan while showering to remove humidity. However, exhaust fans should not be run excessively. It would decrease effi- ciency by removing conditioned air.
You can also help your system in the summer by closing drapes or blinds and by lowering awnings on windows that get direct sunlight.
CARE OF SYSTEM
IMPORTANT: The Owner/user should not attempt to disassemble the equipment nor perform the periodic maintenance unless he or she is experienced and qualified to
Turn off the electrical power at the main disconnect for both the indoor heating unit and the outdoor unit before attempting any maintenance operations.
A periodic inspection, cleaning, lubrica- tion and adjustment of your air condi- tioning system is available from your dealer. Be sure to ask him about this service.
For those who prefer to
Document and retain in your records, the following information:
Model Number: __________________
Serial Number: __________________
Date Installed: __________________
Installing Dealer: ________________
_______________________________
_______________________________
This information will be useful if the unit requires service from a qualified technician.
COIL CARE
Keep the outdoor unit free of loose snow, foliage, grass clippings, leaves, paper, and any other material which could restrict the proper air flow in and out of the unit. The coil may be vacu- umed to remove any debris from between the fins. However, don't knock ice off the outdoor unit's coil surface following an ice or severe snowstorm. The blows could mash the coil fins shut (blocking air passage), or break the refrigerant tubing allowing the refrigerant to escape.
If the coil becomes excessively dirty, turn the main disconnect switch to "OFF" and wash the coil with your gar- den hose. Avoid getting water into the fan motor and control box. Flush dirt from base pan after cleaning the coil.
Unitary Products Group | 3 |
