![service and](/images/new-backgrounds/53901/539011x1.webp)
service and | 333BAV |
maintenance procedures | 333JAV |
UPFLOW/HORIZONTAL, | Series B |
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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 60,000 through 120,000 Btuh units.
Index | Page |
SAFETY CONSIDERATIONS | 1 |
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS |
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PROCEDURE | 2 |
CARE AND MAINTENANCE | |
Air Filter Arrangement | |
Blower Motor and Wheel | 3 |
Cleaning Heat Exchanger | |
Electrical Controls and Wiring | 5 |
Troubleshooting | 5 |
Application Wiring Diagrams | 6 |
Unit Wiring Diagram | 7 |
Service Label | 8 |
Troubleshooting Guide | 9 |
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- 1996/ANSI
Recognize safety information. This is the . 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
Cancels: | |
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A95137
Fig. 1ÐModel 333BAV or 333JAV Horizontal
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CANADIAN GAS ASSOCIATION
A P P R O V E D
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A94085
Fig. 2ÐModel 333BAV or
CERTIFICATION OF333JAV Upflow
MANUFACTURING SITE
WARNING: The ability to properly perform mainte- nance on this equipment requires certain expertise, me- chanical skills, tools, and equipment. If you do not possess these items, do not attempt to perform any maintenance on this equipment other than those proce- dures recommended in the User's Manual. A FAILURE TO FOLLOW THIS WARNING COULD RESULT IN POSSIBLE DAMAGE TO THIS EQUIPMENT, SERI- OUS PERSONAL INJURY, OR DEATH.
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