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507043-04

Page 9 of 9

Issue  1832

Homeowner’s Information

Important System Information

•  Your system should never be operated without a clean 

air filter properly installed.

•  Return air and supply air registers should be free from 

restrictions or obstructions to allow full flow of air.

Regular Maintenance Requirements

Your system should be regularly inspected by a qualified 

service technician. These regular visits may include 

(among other things) checks for:
•  Motor operation

•  Ductwork air leaks

•  Coil & drain pan cleanliness (indoor and outdoor)

•  Electrical component operation & wiring check

•  Proper refrigerant level & refrigerant leaks

• 

Proper airflow

•  Drainage of condensate

• 

Air filters(s) performance

•  Blower wheel alignment, balance & cleaning

•  Primary & secondary drain line cleanliness

•  Proper defrost operation (heat pumps)
There is some routine maintenance procedures you can do 

to help keep your system operating at peak performance 

between visits.

Air Filter

Inspect air filters at least monthly and replace or clean as 

required. Disposable filters should be replaced. Washable 

filters  may  be  cleaned  by  soaking  in  mild  detergent  and 

rinsing  with  cold  water.  Replace  filters  with  the  arrows 

pointing in the direction of airflow. Dirty filters are the most 

common cause of poor heating/cooling performance and 

compressor failures.

Indoor Coil

If the system has been operated with a clean filter in place, 

it should require minimal cleaning. Use a vacuum cleaner 

and soft brush attachment to remove any accumulation of 

dust from the top and underside of the finned coil surface. 

However, perform this maintenance only when the coil is 

completely dry.

If the coil cannot be cleaned by this method, call your 

dealer for service. It may need a detergent solution and 

rinsing with water for cleaning, which may require coil 

removal, You should not attempt this yourself.

Condensate Drain

During cooling season check at least monthly for free flow 

of drainage and clean if necessary.

Condenser Coils

Grass cuttings, leaves, dirt, dust, lint from clothes dryers, 

and fall off trees can be drawn into coils by movement of 

the air. Clogged condenser coils will lower the efficiency of 

your unit and cause damage to the condenser.

Periodically, debris should be brushed from the condenser 

coils.

SHARP OBJECT HAZARD!

Condenser coils have sharp edges. Wear adequate 

body protection on body extremities (e.g. gloves).

FAILURE TO FOLLOW THIS WARNING COULD 

RESULT IN BODILY INJURY.

 WARNING

Use a soft brush with light pressure only. DO NOT damage 

or  bend  condenser  coil  fins.  Damaged  or  bent  fins  may 

affect unit operation.

Painted Surfaces

For maximum protection of the unit’s finish, a good grade 

of  automobile  wax  should  be  applied  every  year.  In 

geographical areas where water has a high concentration 

of minerals (calcium, iron, sulfur, etc.), it is recommended 

that lawn sprinklers not be allowed to spray the unit. In 

such applications, the sprinklers should be directed away 

from the unit. Failure to follow this precaution may result 

in  premature  deterioration  of  the  unit  finish  and  metal 

components.

In sea coast areas, special maintenance is required due 

to the corrosive atmosphere provided by the high salt 

concentration in ocean mists and the air. Periodic washing 

of all exposed surfaces and coil will add additional life to 

your unit. Please consult your installing dealer for proper 

procedures in your geographic area.

IF YOUR SYSTEM DOES NOT WORK, BEFORE 

REQUESTING A SERVICE CALL:

1.  Ensure thermostat is set below (cooling) or above 

(heating) room temperature and that the system lever 

is in the “COOL,” “HEAT” or “AUTO” position.

2. 

Inspect  your  return  air  filter:  If  it  is  dirty  your  air 

conditioner may not function properly.

3.  Check indoor and outdoor disconnect switches. 

Confirm circuit breakers are ON or that fuses have not 

blown. Reset breakers/replace fuses as necessary.

4.  Inspect the outdoor unit for clogged condenser 

coils,(grass cuttings, leaves, dirt, dust or lint). Ensure 

that branches, twigs or other debris are not obstructing 

the condenser fan.

IF YOUR SYSTEM STILL DOES NOT OPERATE, 

CONTACT YOUR SERVICING DEALER.

Be sure to describe the problem, and have the model and 

serial numbers of the equipment available.

If warranted replacement parts are required, the warranty 

must be processed through a qualified distribution location.

Summary of Contents for 4AC14

Page 1: ...ensed professional installer or equivalent service agency or the gas supplier WARNING Installation or repairs made by unqualified persons can result in hazards to you and others Installation MUST conf...

Page 2: ...contact with water pipes duct work floor joists wall studs floors walls and any structure 7 Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct co...

Page 3: ...tubes Split systems may be installed with up to 50 feet of line set no more than 20 feet vertical without special consideration For lines 50 feet or longer refer to long line set guidelines Do not lea...

Page 4: ...ion lines and the indoor coil without disturbing the factory charge in the outdoor unit 3 Follow the vacuum pump manufacturer s instructions Allow the pump to operate until the system has been evacuat...

Page 5: ...m of 10 minutes before checking charge 2 Measure suction pressure by attaching a gage to suction valve service port Determine saturation temp from T P chart 3 Measure suction temperature by attaching...

Page 6: ...hing an accurate gage to service port Determine saturation temp from T P chart 3 Measure liquid line temperature by attaching an accurate thermistor type or electronic thermometer to liquid line near...

Page 7: ...507043 04 Page 7 of 9 Issue 1832 Figure 3 A C Single Phase Wiring Diagram single speed condenser fan...

Page 8: ...Page 8 of 9 507043 04 Issue 1832 Figure 4 A C Single Phase Wiring Diagram multi speed condenser fan...

Page 9: ...trees can be drawn into coils by movement of the air Clogged condenser coils will lower the efficiency of your unit and cause damage to the condenser Periodically debris should be brushed from the con...

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