Carrier 58MCA 10SM Gas Furnace Owners Manual

58MCA 4-Way Multipoise Fixed-Capacity Direct-Vent Condensing Gas Furnace Visit www.carrier.com Service and Maintenance Instructions For Sizes 040–140, Series 180 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. TABLE OF CONTENTS 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 .3 Cleaning Burners 4 Cleaning Heat Exchangers 5 Primary Heat Exchangers 5 Secondary Heat Exchangers 6 Flushing Collector Box and Drainage System 6 Servicing Hot Surface Igniter .8 Electrical Controls and Wiring .8 Checking Heat Tape Operation (If Applicable) 9 Winterizing 9 WIRING DIAGRAM .11 TROUBLESHOOTING .11 Status Codes 11 Component Tests 11 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, 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 hazards 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. A93040 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous operation, serious 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. 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. 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. 535-80139 Printed in U.S.A. Form 58MCA-10SM Pg 1 9-04 Replaces: 58MCA-9SM Tab 6a 8a 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. Untrained personnel can perform basic maintenance functions described in User’s Information Manual such as cleaning and replacing air filters. All other operations must be performed by trained and qualified service agency 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 the National Fuel Gas Code (NFGC) NFPA 54-2002/ANSI Z223.1-2002 in the U.S.A.; National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1-00 (NSCNGPIC) in Canada