Carrier 58TMA Service And Maintenance Instructions
Deluxe 2-speed gas-fired induced-combustion furnace
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Also See for 58TMA:
- Installation, start-up, and operating instructions manual (18 pages) ,
- Install and operation instructions (24 pages) ,
- User's information manual (13 pages)
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Service and Maintenance Instructions
NOTE: Read the entire instruction manual before performing any
service or maintenance.
This symbol
indicates a change since the last issue.
Index
SAFETY CONSIDERATIONS..................................................1-2
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE ...........................................................................2
CARE AND MAINTENANCE..................................................2-7
Air Filter Arrangement..........................................................2-3
Blower Motor and Wheel......................................................3-4
Cleaning Heat Exchanger......................................................4-6
Electrical Controls and Wiring .............................................6-7
Troubleshooting ...................................................................7-10
Unit Wiring Diagram................................................................8
Service Label ............................................................................9
Troubleshooting Guide ...........................................................10
SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified person-
nel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations must
be performed by trained service personnel. When working on
heating equipment, observe precautions in the literature, tags, and
labels attached to or shipped with the unit and other safety
precautions that may apply.
Follow all safety codes. In the United States, follow all safety
codes including the National Fuel Gas Code NFPA No. 54-
1992/ANSI Z223.1-1992. In Canada, refer to the current edition of
the National Standard of Canada CAN/CGA-B149.1- and .2-M91
Natural Gas and Propane Gas Installation Codes. Wear safety
glasses and work gloves. Have fire extinguisher available during
start-up and adjustment procedures and service calls.
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 CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER 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 would result in minor personal
injury or product and property damage.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101
Catalog No. 565-845
Tab 6a 8a
Induced-Combustion Furnace
For Sizes 040-135, Series 100
Page
.
Printed in U.S.A.
58TMA, 58TUA
Deluxe 2-Speed Gas-Fired
Fig. 1—Model 58TMA Horizontal
®
ama
A PP R O VED
R
Fig. 3—Model 58TUA Upflow
Form 58T-3SM
Pg 1
A94087
Fig. 2—Model 58TMA
Downflow
A94086
A94085
1-95
Replaces: 58T-2SM
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Table of Contents
Related Manuals for Carrier 58TMA
Summary of Contents for Carrier 58TMA
- Page 1 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 CAU- TION.
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Page 2: Care And Maintenance
24-1/2 (2) 16 X 25 X 1* (1) 24 X 25 X 1 Cleanable * Factory provided with the furnace. Filters may be field modified as required by cutting and folding the frame as indicated on the filter. Never operate unit without a filter or with filter access door removed. - Page 3 Replace blower access door and turn on electrical supply to furnace. 2. Upflow. Each furnace requires 1 or 2 filters which are installed in the blower compartment. (See Fig. 6.) To remove filters for cleaning or replacement, proceed as follows: a.
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Page 4: Cleaning Heat Exchanger
LIMIT SWITCH MOUNTING SCREWS RELIEF Fig. 7—Model 58TMA Downflow c. Disconnect wires from auxiliary limit on blower housing (if present). 3. Disconnect blower electrical leads from control. (See Fig. 6 and 7.) Note location of wires for reassembly. 4. Remove control. - Page 5 13 32 " BURNER Fig. 9—Position of Ignitor to Burner (8.) Repeat foregoing procedures until each cell in furnace has been cleaned. (9.) Using vacuum cleaner, remove residue from each cell. (10.) Using vacuum cleaner with soft brush attachment, clean burner assembly.
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Page 6: Electrical Controls And Wiring
Condensing Units polarity is NOT correct, the furnace control will display code 02 on the status LED and prevent heat operation. The control system also requires an earth ground for proper operation of the microproces- sor. -
Page 7: Troubleshooting
Refer to the service label on the blower compartment door for code explanations and useful troubleshooting suggestions. (See Fig. 13.) It is important to note that the power to the furnace must not be interrupted and the furnace blower door must not be removed until the LED status code(es) is recorded. - Page 8 7 8 9 1 2 3 USED) (WHEN NOTE 10 11 12 1 2 3 SETTING FACTORY...
- Page 9 RAPID FLASHING Line voltage polarity reversed. If twinned, 24V power to one furnace may be out of phase with power to other furnace. EACH OF THE FOLLOWING STATUS CODES IS A TWO-DIGIT NUMBER WITH THE FIRST DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT BY THE NUMBER OF LONG FLASHES.
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Page 10: Troubleshooting Guide
SW-1 and SW-2 to original desired settings.) Copyright 1995 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.