From inside (document excerpt):
Product Data 58PAV Energy-Efficient Induced-Combustion Upflow Furnace Input Capacities: 45,000 thru 155,000 Btuh 80% AFUE At Budget Price Carrier provides an 80 percent 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. A patented draft safeguard will stop furnace operation if the vent system is not operating properly. 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 an LED status indicator light to ensure top furnace performance. 1998 Carrier Corporation Form No. 58PAV-8PD HUM A89217 COM W Y R G 24V A95246 A92074 HEAT EXCHANGER CONTROL BOARD INDUCER BLOWER Model number nomenclature 58PAV 045 160 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 10 2 3 4 11 5 6 7 8 12 A98062 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 12 Air Filter Retainer Air Filter Wrap-Around Casing Draft Safeguard Switch Heat Exchanger Blower and Blower Motor 3 Carrier accessories* FILTER FRAME ® B C FILTER A FURNACE DOOR A97432 A93068 A97380 A91365 CONTROLS: THERMOSTATS AND ZONING Available in programmable and non-programmable models, Carrier thermostats maintain a constant, comfortable temperature level in the home. For the ultimate in home comfort, Carrier’s 2, 4, and 8-zone systems allow temperature control of individual “zones ” of the home. This is accomplished through a series of electronic dampers and remote room sensors. The 4-zone system is shown. SIDE FILTER RACK Custom made filter rack for easy connection when a return plenum already exists. Provides easy access for cleaning filter. A B C 23-1/8 in. 2-3/8 in. 14-1/2 in. MECHANICAL OR ELECTRONIC AIR CLEANER Cleans the air of smoke, dirt, and many pollens commonly found. Saves decorating and cleaning expenses by keeping carpets, furniture, and drapes cleaner. Electronic air cleaner is shown. MODEL 49FH HUMIDIFIER By adding moisture to winter-dry air, a Carrier humidifier can often improve the comfort and keep furniture, rugs, and draperies in better condition. Moisturizing household air also helps to retain normal body heat and provides comfort at lower temperatures.