Carrier Owners Manual - Enlarge page 1 of 20
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From inside (document excerpt):
58MCB 4-WAY MULTIPOISE FIXED-CAPACITY CONDENSING GAS FURNACE Input Rates: 40,000 thru 138,000 Btuh Product Data High Efficiency and Flexibility Designed to Meet the Needs of New Homes The model 58MCB combines high efficiency with flexibility to meet the changing needs of new home construction. The unique 4-way, multipoise design of the 58MCB allows for installation in upflow, downflow, horizontal left, and horizontal right orientations, meaning it is perfect for a variety of installation applications.
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With the exception of the 140 size unit, all sizes of the 58MCB can be installed in a manufactured (mobile) home when the optional kit is used and in installations with elevations up to 10,000 ft (140 size unit limitation 7,000 ft). The furnace is factory configured for upflow application but can easily be made ready for downflow or horizontal installation. With the exception of the 140 size, all sizes can be installed with 2-pipe or 1-pipe venting. The 140 size can be installed only as a 2-pipe system. Horizontal applications offer the advantage of reduced space requirements by locating the furnace in an attic or crawlspace, freeing space formerly dedicated to a furnace or utility room. The 58MCB is specifically designed to meet the needs of home builders and new home owners. Home builders benefit from the 58MCB’s unmatched flexibility and by building a reputation of using quality appliances in homes. Home owners benefit by energy savings from one of the most important home appliances. The components of the 58MCB represent the finest in the industry. Hot surface ignition (HSI) and a control center provide reliable and efficient ignition. The combustion inducer is unique in that efficient operation is achieved in any type of installation. Standard 2-in. PVC pipe connects the combustion-air and vent pipes to the furnace. The primary and secondary heat exchangers are backed by a 20-year Limited Warranty. The 58MCB is a standard part of a quality-built new home. This highefficiency furnace will provide years of quality service to home builders and home owners alike. As with other Carrier furnaces, this model is designed to work as a part of the total home comfort system which includes elements for cooling, air cleaning, humidification, ventilation, and zoning. 58MCB FEATURES/ BENEFITS SerpentuffTM–Exclusive Serpentuff coating, a patented polypropylene laminate is used on the secondary heat exchanger. Power HeatTM Igniter–Carrier’s unique SiN igniter is not only physically robust but it is also electrically robust. It is capable of running at line voltage and does not require complex voltage regulators as do other brands. This unique feature further enhances the reliability of the 58MCB gas furnace and continues Carrier’s tradition of technology leadership and innovation in providing a reliable and durable product. Control Center–Controls sequencing and furnace operation. Equipped with a component test feature and status indicator light to assist in troubleshooting. Control times blower start after main burners ignite to eliminate cold air blowing into rooms. Warranties–20-year Limited Warranty on the heat exchangers. Fiveyear Limited Warranty on entire unit. Contact your dealer for details.