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126114-UUM-E-0107
Unitary Products Group 3
If your system is an add-on type, (installed in conjunction with a stan-
dard furnace) inspect your furnace blower motor and care for it in the
same way.
FILTER CARE
FILTER CAREFILTER CARE
FILTER CARE
Inspect the air filter(s) at least once a month. If they are dirty, wash
reusable filters with a mild detergent per manufacturer’s recommenda-
tions. Replace disposable filters with new filters.
Install the clean filters with “air flow” arrow in the same direction as the
air flow in your duct. Filters should be clean to assure maximum effi-
ciency and adequate air circulation. Drapes, furniture or other obstruc-
tions blocking your supply and return air grilles will also decrease
efficiency.
OUTDOOR UNIT FINISH
OUTDOOR UNIT FINISHOUTDOOR UNIT FINISH
OUTDOOR UNIT FINISH
If you wish to maintain the finish of the outdoor unit, it can be polished
with car wax. It is recommended the unit be cleaned with soap and
water prior to waxing.
CLEARANCES
CLEARANCESCLEARANCES
CLEARANCES
The minimum clearances shown below must be maintained should any
patio or yard improvements be done around the outdoor unit.
• Top 48”
• Sides 12”
• Access 24”
POWER INTERRUPTION
POWER INTERRUPTIONPOWER INTERRUPTION
POWER INTERRUPTION
When ice, snow, wind storms, etc. disrupt electrical power supply to
your house, proceed as follows:
Heating Season
1. Switch thermostat to emergency heat.
NOTE: There will be no heat available until power is re-established.
2. Leave on emergency heat for at least 8 hours after electrical
power is re-established if the power was off more than 8 hours.
3. Switch thermostat back to heating or auto.
Cooling Season
1. Switch thermostat to OFF position.
2. Do not switch to cooling or auto until electrical power has been re-
established for 8 hours if the power was off more than 8 hours.
SERVICE CALLS
SERVICE CALLSSERVICE CALLS
SERVICE CALLS
There are a few instances where you can avoid unnecessary service
calls. (See Troubleshooting Guide above). Some models provide fault
codes. The flashing light on the system thermostat is capable of provid-
ing you with time and money saving information. The fault code num-
bers listed can be handled by taking the corrective action indicated. Call
qualified service person if displaying fault code numbers not listed.
PARTS INFORMATION
PARTS INFORMATIONPARTS INFORMATION
PARTS INFORMATION
Replacement parts are available from local contractor/dealers or the
nearest distribution center.
TROUBLESHOOTING GUIDE
PROBLEM CHECK ACTION TO TAKE FAULT CODE
No Heat
or
Cooling
1. Thermostat for proper settings. Set thermostat to proper setting. -
2. Circuit breakers and fuses. Reset circuit breakers - Replace blown fuses. -
3. Check outdoor unit for dirty coil (Cooling). Clean coil, see “COIL CARE” section. 2
4. Outdoor unit for snow accumulation. (Heating). Remove loose snow only. 3
5. Indoor unit for dirty filter (Heating). Clean or replace, see “FILTER CARE” section. 2
6. Emergency heat light status on thermostat. Check 1 - 5, call qualified service person. 2
Light on = Malfunction Check 1 - 5, call qualified service person. -
Light flashing = Malfunction Check 1 - 5, call qualified service person with fault code. -
Wet on Floor
or in Furnace
Condensate drain and “P” trap Remove blockage, usually mold or fungus. -