From inside (document excerpt):
58VLR LOW-BOY OIL FURNACE Series 100 Input Capacities: 70,000 thru 154,000 Btuh Product Data The Latest in Oil Furnace Technology The model 58VLR combines variable-speed high efficiency and quiet operation with oil heating technology. The 58VLR is available in 2 sizes. Each size can be fired at 3 different rates by a simple nozzle and pump pressure change. Unit 58VLR105 covers input ranges from 70,000 to 105,000 Btuh.
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Unit 58VLR120 covers input ranges from 119,000 to 154,000 Btuh. The furnace design is a low-boy style for upflow applications, where overhead space is limited. The components of the 58VLR are the finest in the industry. The unit uses a Riello oil burner with an electronic air damper. The 58VLR is a standard part of a quality-built home. This highefficiency 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. 58VLR FEATURES/ BENEFITS Casing — Made of 18-gauge painted steel for years of durability. The cabinet features an insulated enclosure for the burner and controls. Certifications — The 58VLR unit is UL and ULC certified. The efficiency is GAMA efficiency rating certified. Warranties — Limited Lifetime Warranty on combustion chamber/ heat exchanger. Five-year Warranty on Riello burner. Two-year Warranty on ignition controls. Contact your dealer for details. Combustion Products Venting — Rear flue outlet. Unit may be vented using Type L vent material and a factory-built metal or masonry chimney. The unit may also be sidewall vented with an approved power venter. Insulation and Soundproofing — A unique sound trap along with insulated walls efficiently capture most combustion noise and vibrations and makes this unit one of the quietest on the market. The flue-silence baffle ensures quiet operation. Variable Speed Blower — Variablespeed blower for precise airflow selection of heating or cooling operation. Riello Oil Burner — High quality Riello oil burner allows safe and efficient combustion of oil. Combustion Chamber/Heat Exchanger — Composed mainly of stainless and aluminized steel, the unique combination combustion chamber/heat exchanger resists corrosion, overheating, and deterioration. Its responsive heat transfer properties make it highly efficient. All seams are tightly welded for leak-free operation. Ignition Control and Electronic Fan Control — Ignition control and fan control board provide reliable operation and easy connection of thermostat and accessory wiring. 120 VAC SW1 HEAT 1 2 A OFF OFF ON OFF B C OFF ON ON ON D ON SW1 OFF SW3 1 2 OFF OFF ON OFF OFF ON ON ON ON SW3 OFF OFF R23 ADJ A B C D OFF SW4 DELAY.