Carrier 58MVB 2SM Gas Furnace Owners Manual

58MVB Deluxe 4 Way Multipoise Variable Capacity Condensing Gas Furnace Service and Maintenance Instructions For Sizes 040– 120, Series 100 NOTE: Read the entire instruction manual before starting the installation. ! TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS 1 GENERAL 2 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 2 CARE AND MAINTENANCE 3 Cleaning and/or Replacing Air Filter . 3 Blower Motor and Wheel Maintenance .

4 Cleaning Burners 5 Cleaning Heat Exchangers . 6 Flushing Collector Box and Drainage System 7 Servicing Hot Surface Igniter . 8 Electrical Controls and Wiring 9 Checking Heat Tape Operation (If Applicable) 10 Winterizing 10 WIRING DIAGRAMS 12 TROUBLESHOOTING . 12 WARNING ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD Failure to follow this warning could result in possible damage to this equipment, serious personal injury, or death. 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. ! WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could cause corrosion of heat exchanger, fire, personal injury, or death. Never store anything on, near, or in contact with the furnace, such as: 1. Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners, or other cleaning tools. 2. Soap powders, bleaches, waxes or other cleaning compounds, plastic or plastic containers, gasoline, kerosene, cigarette lighter fluid, dry cleaning fluids, or other volatile fluids. 3. Paint thinners and other painting compounds, paper bags, or other paper products. ! WARNING ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous operation, personal injury, death, or property damage. Improper servicing could result in dangerous operation, serious injury, death, or property damage. – Before servicing, disconnect all electrical power to furnace. – When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly. – Verify proper operation after servicing. – SAFETY CONSIDERATIONS 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 CAUTION. 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 may 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. 1 Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified service agency personnel should install, repair, or service heating equipment. Follow all safety codes including the National Fuel Gas Code (NFGC) NFPA 54-2005/ANSI Z223.1-2005 in the USA, CSA B149.1-05 National Standard of Canada, Natural Gas and Propane Installation Codes (NSCNGPIC) in Canada, and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. Wear safety glasses and work gloves. Have a fire extinguisher available during start-up and adjustment procedures and service calls. GENERAL This furnace can be installed as a direct vent (2-pipe) or non-direct vent (1-pipe) condensing gas furnace. These instructions are written as if the furnace is installed in an upflow application. An upflow furnace application is where the blower is located below the combustion and controls section of the furnace, and conditioned air is discharged upward.