From inside (document excerpt):
Product Data ® 58PAV High-Efficiency Induced-Combustion Upflow Furnace Input Capacities: 45,000 thru 155,000 Btuh 80% AFUE At Budget Price Carrier provides an 80% Annual Fuel Utilization Efficiency (AFUE) gas furnace for the budget conscious consumer and builder. The 58PAV offers the same high quality you demand and receive from Carrier. The cabinet is constructed from a specially selected galvanized steel.
There is also double protection for the cabinet. First, a galvanized steel substrate provides resistance to rusting. Then the cabinet is constructed of prepainted steel — the same highquality finish found on refrigerators and dishwashers. The 58PAV offers a hot surface ignition system which provides a superior and more reliable ignition system than older spark relight systems. The heat exchangers are constructed of aluminized steel and covered by a 20-year Limited Warranty. They are Carrier’s patented Super-S heat exchangers that improve heat transfer and enable downsizing of this furnace to only 40-in. tall. To improve the sound level, we have incorporated a soft mount inducer assembly and a slow opening gas valve. The control board is the brain of this induced-combustion gas furnace. It offers a unique self-test feature that checks all the major functions of the furnace within 1 minute. The control board also features a 3-amp fuse that protects the transformer and control board. Another feature on the control board is a LED status indicator light to ensure top furnace performance. 1996 Carrier Corporation Form No. 58PAV-6PD HUM A89217 COM W Y R G 24V A95246 A92074 HEAT EXCHANGER CONTROL BOARD INDUCER BLOWER MEETS DOE RESIDENTIAL CONSERVATION SERVICES PROGRAM STANDARDS. ® ama CANADIAN GAS ASSOCIATION A PP R O VED R Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Model number nomenclature 58PAV 045 161 08 Cooling Size (Airflow) (400 CFM per 12,000 Btuh) 08 — 800 CFM 12 — 1200 CFM 14 — 1400 CFM 16 — 1600 CFM 20 — 2000 CFM Series Number Induced-Combustion Upflow Furnace Input Capacity 045 — 44,000 Btuh 070 — 66,000 Btuh 090 — 88,000 Btuh 111 — 110,000 Btuh 135 — 132,000 Btuh 155 — 154,000 Btuh 2 1 9 2 3 4 10 5 6 7 8 11 A94089 NOTE: The 58PAV Furnaces are for use with natural gas. These furnaces can be field-converted for propane gas with a factory-authorized and listed accessory conversion kit. NOTE: Control location and actual control may be different than shown above. 1 2 3 4 5 6 Inducer Assembly Pressure Switch Gas Control Valve Burner Assembly Blower Door Safety Switch Control Box 7 8 9 10 11 Air Filter Retainer Air Filter Wrap-Around Casing Heat Exchanger Blower and Blower Motor 3 Carrier accessories* 5/ 8 FILTER FRAME C FILTER B C FILTER FILTER A B FURNACE A FURNACE A93067 DOOR A93068 A91465 A91365 RETURN-AIR PLENUM Custom made return-air plenum can be mounted on either side of the furnace. Includes washable filters. SIDE FILTER RACK Custom made filter rack for easy connection when a return plenum already exists. Provides easy access for cleaning filter.