Carrier 48HG14---28 User's Information 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
DETERMINE TYPE OF UNIT CONTROL
TO LIGHT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Units with Thermostat Control
Units with ComfortLINKt Control
TO SHUT UNIT OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Units with Thermostat Control
Units with ComfortLINK Control
MAINTAINING YOUR UNIT
ROUTINE MAINTENANCE AND CARE FOR
THE EQUIPMENT OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . .
REGULAR DEALER MAINTENANCE
BEFORE YOU CALL FOR SERVICE, CHECK
FOR SEVERAL EASILY SOLVED PROBLEMS

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.
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FIRE, EXPLOSION HAZARD
1
Failure to follow this warning could result in personal injury,
death and/or property damage.
2
1. Improper installation, adjustment, alteration, service,
2- -6
or maintenance can cause property damage, personal
2
injury, or loss of life. Refer to the User's Information
Manual provided with this unit for more details.
3
2. Do not store or use gasoline or other flammable
6- -8
vapors and liquids in the vicinity of this or any other
6 appliance.
What to do if you smell gas:
6
1. DO NOT try to light any appliance.
8
2. DO NOT touch any electrical switch, or use any
phone in your building.
9
3. Leave the building immediately.
4. IMMEDIATELY call your gas supplier from a
10
neighbor's phone. Follow the gas supplier's
instructions.
11
5. If you cannot reach your gas supplier, call the fire
department.
!
PERSONAL INJURY, DEATH AND / OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Improper installation,
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
WARNING
adjustment, alteration, service,