Carrier Owners Manual - Enlarge page 1 of 8
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From inside (document excerpt):
58CMR MULTIPOISE OIL FURNACE INPUT RATES: 70,000 thru 154,000 BTUH SERIES 120 Product Data 58CMR FEATURES/BENEFITS Riello Oil Burner and UTEC Controls S High quality Riello oil burner allows safe and efficient combustion of oil. S UTEC fan timer board provides reliable operation and easy connection of thermostat and accessory wiring. Casing S Made of 20–gauge, powder–painted steel for years of durability and attractiveness.
S Cabinet features a reversible door, ensuring ease of service access even in downflow applications. Insulation and Soundproofing S Unique silencer baffle, insulated walls and rubber blower mounts capture most combustion noise and vibration and make this unit one of the quietest on the market. Combustion Products Venting S Top or side flue outlet. S Unit may be vented using Type L vent material and a factory-built metal or masonry chimney. S A06625 Unit may also be sidewall vented with an approved power venter. Adjustable Blower Speed S 4–speed blower for precise airflow selection of heating or cooling operation. THE LATEST IN OIL FURNACE TECHNOLOGY The model 58CMR combines high efficiency and quiet operation with oil heating technology. The 58CMR is available in 2 sizes. Each size can be fired at 3 different rates by a simple nozzle change. Unit 58CMR105 covers input ranges from 70,000 to 105,000 Btuh. Unit 58CMR120 covers input ranges from 119,000 to 154,000 Btuh. The furnace design is a multipoise style for upflow, downflow, and horizontal applications. The components of the 58CMR are the finest in the industry. The unit uses a Riello oil burner with a UTEC fan timer control. The 58CMR is a standard part of a quality-built home. This energy-efficient furnace will provide years of quality service to home builders and homeowners alike. As with other Carrier furnaces, this model is designed to work as part of a total home comfort system which includes elements for cooling, air cleaning, humidification, ventilation, and zoning. This unit is not approved for use in mobile home installations. Constant Low-Speed Blower Switch S Allows continual low–speed air circulation through the home to efficiency. maximize comfort while maintaining S Air is constantly filtered and stagnant air is avoided. S This option can be controlled by the homeowner. Combustion Chamber/Heat Exchanger S Composed mainly of stainless and aluminized steel, the unique combination combustion chamber/heat exchanger resists corrosion, overheating, and deterioration. S Heat transfer properties make it energy efficient.