Bryant 383KAV instruction manual Electrostatic Discharge ESD Precautions, Ð1Ð

service and	373LAV
maintenance procedures	383KAV
GAS-FIRED	Series G
INDUCED-COMBUSTION FURNACES

SAFETY CONSIDERATIONS
NOTE: Read the entire instruction manual before performing any
service or maintenance.
This symbol → indicates a change since the last issue.
These procedures are for size 45,000 through 155,000 Btuh input
units.
Index	Page
SAFETY CONSIDERATIONS	1-2
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE	2
CARE AND MAINTENANCE	2-11
Air Filter Arrangement	2-3
Blower Motor and Wheel	3-4
Cleaning Heat Exchanger	4-5
Electrical Controls and Wiring	5-6
Troubleshooting	6-11
Unit Wiring Diagram	8
Service Label	9
Troubleshooting Guide	10-11
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. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) NFPA No. 54-1996/ANSI Z223.1-1996 and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1- and .2-M95 Natural Gas and Propane Installation Codes (NSCNGPIC). 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. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

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Cancels: SP04-44	SP04-53
	9-98

A94087

Fig. 1ÐModel 373LAV Horizontal

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CANADIAN GAS ASSOCIATION

A P P R O V E D

R

A94086

Fig. 2ÐModel 373LAV

Downflow

REGISTERED QUALITY SYSTEM

A94085

Fig. 3ÐModel 383KAV

Upflow