Carrier 48HJ015-025 - User Manual

User’s Information Manual
NOTE TO INSTALLER:
This manual should be left with the equipment owner.
FOR YOUR SAFETY
Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
Improper installation, adjustment, alteration, serv-
ice or maintenance can cause injury or prop-
erty damage. Refer to this manual. For assis-
tance or additional information consult a qualified
installer, service agency, or the gas supplier.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
Before performing recommended maintenance, be
sure main power switch to unit is turned off. Elec-
trical shock could cause personal injury.
Your combination heating/cooling unit is equipped with
an automatic intermittent pilot and induced draft power
combustion blower.
Pilot will light automatically. Do not attempt to light
by hand; personal injury may result.
TO LIGHT UNIT
1. Do not turn off the electrical power to unit with-
out first turning of the gas supply.
2. Before attempting to start the gas heating sec-
tion, familiarize yourself with all the proce-
dures that must be followed.
3. Never attempt to manually light the pilot on unit
with a match, lighter, or any other flame. If the
electric sparking device fails to light the pilot,
refer to the shutdown procedures, then call your
dealer as soon as possible.
If you do not follow these instructions exactly, a
fire or explosion may result, causing property dam-
age, injury, or loss of life.
See Fig. 1 for location of gas valves. Refer to Fig. 2 while
proceeding with the following steps.
Step 1 — Set room thermostat to the lowest temperature
setting and set SYSTEM switch to HEAT position.
Step 2 — Close the external manual gas valve.
Step 3 — Turn off the electrical supply to the unit.
Step 4 — Remove the burner compartment access panel.
Step 5 — Turn the control dial on the internal gas valve
counterclockwise to the OFF position and wait
5 minutes.
Step 6 — Turn control dial on internal gas valve clock-
wise to ON position.
Step 7 — Replace the burner compartment access panel.
Step 8 — Turn on the electrical supply to unit.
Step 9 — Open the external gas valve.
Step 10 — Set room thermostat selector slightly above
room temperature to start unit. The induced-draft combus-
tion air fan will start. Main burners light within 30 seconds.
Indoor blower will start within a few minutes of main gas
ignition.
Step 11 — Set the temperature selector on room thermo-
stat to desired setting.
48HJ015-025
48TJ016-028
Combination Heating/Cooling Units
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 1a 6a
PC 111 Catalog No. 564-930 Printed in U.S.A. Form 48H,T-2SO Pg 1 9-96 Replaces: 48H,T-1SO

Carrier 48HJ015-025 Specifications

General

Brand	Carrier
Model	48HJ015-025
Category	Heater
Language	English

Summary

Users Information Manual

General Safety Precautions

Safety guidelines for users, including handling flammable vapors and electrical shock prevention.

Gas Leak Response

Steps to take if you smell gas, emphasizing immediate actions and contacting the gas supplier.

Unit Lighting Procedure

Step-by-step instructions for lighting the unit, including critical safety warnings.

Maintaining Your Unit

Routine Maintenance and Owner Care

Guidance for owners on routine maintenance and care, including area clearance.

Servicing Safety Precautions

Safety warnings to turn off gas and electrical power before servicing.

Air Filter Maintenance

Instructions for checking, cleaning, or replacing air filters and filter data.

How to Shut Unit Off

Step-by-step procedures to safely shut down the unit, including gas and electrical.

Panel Locations and Component Maintenance

Heat Exchanger Maintenance

Checks and cleaning for the heat exchanger, recommending qualified personnel.

Fans and Belts Inspection

Periodically checking fan wheels, housings, and belt tension.

Motor and Fan Shaft Bearing Lubrication

Lubrication recommendations for motors and fan shaft bearings.

Coil and Drain Maintenance

Cleaning evaporator/condenser coils and condensate drain line.

Compressor Oil Level

Information on compressor oil levels and service technician's role.

System Inspection and Troubleshooting

Condenser Fan Safety

Warning against inserting objects into the condenser fan blades.

Electrical Controls and Wiring Checks

Guidance on checking electrical controls and wiring, recommending dealer service.

Integrated Gas Controller (IGC)

Information on the IGC board and its LED alarm codes.

Combustion Area and Vent System Inspection

Visual inspection of combustion area and vent system for dirt, soot, or scale.

Proper Flame Appearance

Description of correct burner flame appearance (bright blue).

Regular Dealer Maintenance and Service Advice

Regular Dealer Maintenance Checklist

A list of items a qualified service technician should inspect annually.

Easily Solved Problems

Checks for insufficient heating/cooling and units not operating at all.

In Case of Trouble

Action to take if performance is unsatisfactory after checks, including dealer contact.