Armstrong Air Conditioning 4HP13 Installation & Start-Up Instructions - Page 17

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On models without a fan Selection Switch, the fan will cycle

with the outdoor unit.

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 & drainpan cleanliness (indoor & outdoor)

! Electrical component operation & wiring check

! Proper refrigerant level & refrigerant leaks

! Proper airflow

! Drainage of condensate

! Air filter(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 from trees can be drawn into coils by movement

of the air. Clogged condenser coils will lower the efficiency

of your unit and could cause damage to the condenser.

506318-01

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.

Use a soft bristle 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 YOU SERVICING DEALER.

Be sure to describe the problem, and have the model

and serial numbers of the equipment available.

If warranted replacements parts are required, the

warranty must be processed through a qualified distribution

location.

Issue 0946

WARNING

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