Carrier 48TM016 - User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 534-80112 Printed in U.S.A. Form 48TM-1SO Pg 1 5-02 Replaces: New
Book 1 4
Ta b 1 a 6 a
User’s Information Manual
NOTE TO INSTALLER
This manual should be left with the equipment owner.
Your combination heating/cooling unit is equipped with an
automatic intermittent pilot and induced draft power combus-
tion blower.
TO LIGHT UNIT
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 combustion
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 thermostat
to desired setting.
WARNING: If the information in this man-
ual is not followed exactly, a fire or explo-
sion may result causing property dam-
age, personal injury or loss of life.
— 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
• 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 sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information consult a qualified installer,
service agency, or the gas supplier.
Before performing recommended maintenance, be sure
main power switch to unit is turned off and lockout tag is
installed. Electrical shock could cause personal injury.
Pilot will light automatically. Do not attempt to light by
hand; personal injury may result.
1. Do not turn off the electrical power to unit without
first turning off the gas supply.
2. Before attempting to start the gas heating section,
familiarize yourself with all the procedures 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 damage, injury, or
loss of life.
48TM016-028
Combination
Heating/Cooling Units

Summary

Unit Operation and Safety

General Safety Precautions

Critical warnings about fire, explosion, property damage, and personal injury from incorrect operation.

Gas Leak Safety Procedures

Steps to take if you smell gas, including contacting suppliers and fire department.

Unit Lighting Instructions

Step-by-step guide to safely start the heating unit, including gas valve and thermostat settings.

Unit Maintenance

General Maintenance Guidelines

Emphasizes professional service and keeping the area clear of combustibles.

Owners Routine Maintenance

Guidance for owners on routine checks, safety, and air filter care.

Safety Before Maintenance

Crucial safety steps, including shutting off gas and electrical power before servicing.

Air Filter Care and Replacement

Instructions for managing air filters, including checking, cleaning, and replacement.

Unit Shutdown Procedure

Steps to Shut Unit Off

Detailed step-by-step instructions for safely turning off the heating unit.

Component Maintenance and Inspection

Fan and Motor Maintenance

Guidance on checking fan wheels, housings, belts, and motor lubrication.

Coil and Drain Maintenance

Instructions for cleaning evaporator, condenser coils, and condensate drain.

Heat Exchanger Inspection

Procedure for inspecting the heat exchanger before the heating season.

Electrical and Gas System Checks

Checks for electrical controls, wiring, IGC alarms, and refrigerant circuits.

Combustion and Vent System Inspection

Visual inspection of combustion areas and vent systems for obstructions and buildup.

Troubleshooting and Service

Burner Flame Inspection

How to inspect burner flame appearance for proper operation and potential issues.

Regular Dealer Maintenance Checklist

Comprehensive list of annual inspections recommended for professional service.

Easy Solved Problems

Common issues and checks for insufficient heating/cooling or unit not operating.

Contacting Your Dealer

Information on what to do if troubleshooting fails and how to provide unit details.

Carrier 48TM016 Specifications

General

Model Number	48TM016
Category	Air Conditioner
Refrigerant Type	R-410A
Voltage	208/230V
Phase	1
Compressor Type	Scroll
Cooling Capacity	16, 000 BTU