Carrier 58MCA instruction manual Service and Maintenance Instructions

58MCA 4-Way Multipoise Fixed-Capacity Direct-Vent Condensing Gas Furnace

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Service and Maintenance Instructions

→For Sizes 040Ð140, Series 131

®

A93040
NOTE: Read the entire instruction manual before performing any
service or maintenance.
This symbol → indicates a change since the last issue.
Index	Page
SAFETY CONSIDERATIONS	1-2
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS	2
GENERAL	2
CARE AND MAINTENANCE	2-11
Cleaning and/or Replacing Air Filter	3
Blower Motor and Wheel Maintenance	3-4
Cleaning Burners	4-5
Cleaning Heat Exchangers	5-7
Primary Heat Exchangers	5-7
Secondary Heat Exchangers	7
Flushing Collector Box and Drainage System	7
Servicing Hot Surface Ignitor	7-8
Electrical Controls and Wiring	8-9
Troubleshooting	9-10
Checking Heat Tape Operation (If Applicable)	10
Winterizing	10-11
WIRING DIAGRAM	12
SERVICE LABEL	13
TROUBLESHOOTING GUIDE	14-15
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, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.

→Follow all safety codes, including NFPA 54/ANSI Z223.1-1996, National Fuel Gas Code and ANSI/NFPA 90B, Installation Stan- dards, Warm Air Heating and Air Conditioning Systems. In Canada, refer to the current edition of the National Standard of

ama

CANADIAN GAS ASSOCIATION

A P P R O V E D

R

As an ENERGY STARSM Partner, Carrier Corporation

has determined that this prod- uct meets the ENERGY STAR guidelines for energy

efficiency.A93278

CERTIFICATION OF MANUFACTURING SITE

Fig. 1ÐMultipoise Furnace in Upflow Orientation

Canada CAN/CGA-B-149. Wear safety glasses and work gloves. Have a 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 unit 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 hazards 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. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

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. 565-879	Printed in U.S.A.	Form 58MCA-4SM	Pg 1	11-96	Replaces: 58MCA-3SM
Tab	6a	8a