Carrier 48HJ20---28 - Manual

48HG14 --- 28, 48HJ20 --- 28

48PG20 --- 28, 48PM16 --- 28

Gas Heating/Electric Cooling Unit

User’s Information Manual

NOTE TO INSTALLER:

This manual should be left with the equipment owner.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

1

. . . . . . . . . . . . . . . . . . . . . . . . .

DETERMINE TYPE OF UNIT CONTROL

2

. . . . . . . . . . . . . . .

TO LIGHT UNIT

2--6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Units with Thermostat Control

2

. . . . . . . . . . . . . . . . . . . . . . . . .

Units with

Comfort

LINK

t

Control

3

. . . . . . . . . . . . . . . . . . . .

TO SHUT UNIT OFF

6--8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Units with Thermostat Control

6

. . . . . . . . . . . . . . . . . . . . . . . . .

Units with

Comfort

LINK Control

6

. . . . . . . . . . . . . . . . . . . . . .

MAINTAINING YOUR UNIT

8

. . . . . . . . . . . . . . . . . . . . . . . . . .

ROUTINE MAINTENANCE AND CARE FOR
THE EQUIPMENT OWNER

9

. . . . . . . . . . . . . . . . . . . . . . . . . . .

REGULAR DEALER MAINTENANCE

10

. . . . . . . . . . . . . . . .

BEFORE YOU CALL FOR SERVICE, CHECK
FOR SEVERAL EASILY SOLVED PROBLEMS

11

. . . . . . . . .

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only

trained and qualified service personnel should install, repair, or

service air-conditioning equipment.
Untrained personnel can perform the basic maintenance functions

of replacing filters. All other operations should be performed by
trained service personnel. When working on air-conditioning

equipment, observe precautions in the literature, tags and labels
attached to the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves.

Have fire extinguishers available for all brazing operations.

Recognize safety information. This is the safety--alert symbol

.

When you see this symbol on the furnace and in instructions or

manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and

CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which

will

result in

severe personal injury or death. WARNING signifies a hazard

which

could

result in personal injury or death. CAUTION is used

to identify unsafe practices which

may

result in minor personal

injury or product and property damage. NOTE is used to highlight
suggestions which

will

result in enhanced installation, reliability, or

operation.

FIRE, EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death and/or property damage.
1. Improper installation, adjustment, alteration, service,

or maintenance can cause property damage, personal

injury, or loss of life. Refer to the User’s Information

Manual provided with this unit for more details.

2. Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other

appliance.

What to do if you smell gas:

1. DO NOT try to light any appliance.

2. DO NOT touch any electrical switch, or use any

phone in your building.

3. Leave the building immediately.

4. IMMEDIATELY call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

5. If you cannot reach your gas supplier, call the fire

department.

!

WARNING

PERSONAL INJURY, DEATH AND / OR PROPERTY

DAMAGE HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.
Improper

installation,

adjustment,

alteration,

service,

maintenance, or use can cause explosion, fire, electrical shock,

or other conditions which may cause personal injury or

property damage. Consult a qualified installer, service agency,

or your distributor or branch for information or assistance.

The qualified installer or service agency must use

factory--authorized kits or accessories when modifying this

product.

!

WARNING