Carrier 48ES Owner's Manual download pdf (Page 4)

PERSONAL INJURY AND UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.

Do not insert sticks, screwdrivers, or any other objects into

revolving fan blades.

WARNING

The fan must be kept free of all obstructions to ensure proper cool-

ing. Contact your dealer for any required service.

Electrical Controls and W

iring

Electrical controls are difficult to check withoutproperinstrumenta-

tion. If there are any discrepancies in the operating cycle, contact

your local dealer and request service.

Refrigerant

Circuit

Therefrigerant circuitisdifficult to check forleaks without theprop-

er equipment. If inadequate cooling is suspected, contact your local

dealer for service.

EXPLOSION AND BURN HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.

System under pressure. Relieve pressure and recover all

refrigerant before system repair or final unit disposal. Use all

service ports and open all flow-- control devices, including

solenoid valves.

WARNING

Unit Panels

After performing any maintenance or service on the unit, be sure all

panels are fastened securely in place to prevent rain from entering

unit cabinet and to prevent disruption of the correct unit airflow pat-

tern.

Regular Dealer Maintenance

In addition to the type of routine maintenance you might be willing

to perform, your unit should be inspected regularly by a properly

trained service technician. An inspection (preferably each year, but

at least every other year) should include the following:

1. Inspection and, if required, cleaning of the outdoor and

indoor coils.

2. Inspection and, if required, cleaning of the indoor coil drain

pan.

3. Inspection and cleaning of blower wheelhousing and motor.

4. Inspection of all supply-- air and return-- air ducts for leaks,

obstructions, and insulation integrity. Any problems found

should be resolved at this time.

5. Inspection of theunit base to ensurethat no cracks,gaps,etc.,

exist which may cause a hazardous condition.

6. Inspection of the unit casing for signs of deterioration.

7. Inspection of all electrical wiring and components to assure

proper connection.

8. Inspection for leaks in the refrigerant circuit. Pressure check

to determine appropriate refrigerant charge.

9. Operational check of the unit to determine working

conditions. Repair oradjustment should be madeat thistime.

Your servicing dealer may offer an economical service contract that

covers seasonal inspections. Ask for further details.

Complete service instructions can be found in the unit Installation,

Start-- up and Service Instructions.

Warranty Certificate

Your unit has a limited warranty. Be sure to read the warranty care-

fully to determine the coverage for your unit.

Before you call for service...

...check for several easily--solved problems.

If insufficient heating or cooling is suspected:

( ) Check for sufficient airflow. Check the air filter for dirt. Check

for blocked return-- air or supply-- air grilles. Be sure they are open

and unobstructed. If these checks do not reveal the cause, call your

servicing dealer.

If your unit is not operating at all, check the following list for

easy solutions:

( ) Check to be sure that your thermostat temperature selector is

set below the indoor temperature during the cooling season or

above the indoor temperature during heating season. Be sure the

SYSTEM switch o r MODE control is in the COOL or HEAT and

not OFF.

( ) If your unit still fails to operate, call your servicing dealer for

troubleshooting and repairs. Specify the model and serial numbers

of your unit. (Record them in this manual in the space provided.) If

the dealer knows exactly which unit you have, he may be able to

offer suggestions over the phone, or save valuable time through

knowledgeable preparation for the service call.

In Case of Trouble

If you perform the steps above and unit performance is still unsatis-

factory, shut off the unit and call your dealer.

HEA T ING & COOL ING

TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or classified section of your local telephone directory under the

“Heating Equipment” or “Air Conditioning Contractors & Systems” heading for dealer listing by b rand name.

Have available the Model No., Series Letter, & Serial No. of your equipment to ensure correct replacement part.

Catalog No: OM48---27

Replaces: NEW

Manufacturer reserves the right to change, at any time, specificati ons and design without notice and without obligation.

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Carrier 48ES Owner's Manual Page 4

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