Carrier 58YAV 2SM Gas Furnace Owners Manual

58YAV Induced-Combustion Furnaces Visit www.carrier.com Service and Maintenance Instructions For Sizes 070-155, Series 100 NOTE: Read the entire instruction manual before performing any service or maintenance. These procedures are for size 66,000 through 154,000 Btuh input units. Index Page SAFETY CONSIDERATIONS .1 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE .2 CARE AND MAINTENANCE 2-10 Air Filter Arrangement .2 Blower Motor and Wheel 2-3 Cleaning Heat Exchanger 3-4 Electrical Controls and Wiring .5-6 Troubleshooting .6-10 Unit Wiring Diagram 8 Troubleshooting Guide 9-10 Service Label 11 SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components.

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Only trained and qualified personnel 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 54-1999/ANSI Z223.1-1999 and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the CAN/CGA-B149.1- and .2-M95 National Standard of Canada, 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, CAUTION, and NOTE. These words are used with the safety-alert symbol. DANGER 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. ama CANADIAN GAS ASSOCIATION ® A PP R O VED R REGISTERED QUALITY SYSTEM A94085 Fig. 1–Model 58YAV Upflow Furnace The ability to properly perform maintenance on this equipment requires certain expertise, mechanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User’s Manual. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN POSSIBLE DAMAGE TO THIS EQUIPMENT, SERIOUS PERSONAL INJURY, OR DEATH. 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. 535-738.

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