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From inside (document excerpt):
58PHA/PHX PERFORMANCETM BOOST 80 4 WAY MULTIPOISE INDUCED COMBUSTION GAS FURNACE Input Capacities: 45,000 thru 135,000 Btuh Series 110 Product Data 58PHA/PHX furnaces are approved for use with natural or propane gas, and the 58PHX is approved for use in Low NOx Air Quality Management Districts. STANDARD FEATURES S ECM Blower Motor included S QuieTecht noise reduction system S SmartEvapt–Humidity control when using a Thermidistatt Control S ComfortFant–adjustable constant fan speed from the thermostat S Microprocessor based control center Enhanced diagnostics with LED and reflective sight glass.
Stores fault codes during power outages Adjustable heating air temperature rise Adjustable cooling airflow Dehumidification selection for summer-time cooling S 4-way Multipoise furnace, 13 vent applications S Compact design – only 33-1/3 in. (847 mm) tall S Power Heat SiNt Igniter A10251 S Draft safeguard switch to ensure proper furnace venting S Insulated blower compartment S Inner door for tighter sealing S Certified to leak 2 percent or less of its nominal air conditioning CFM delivered when pressurized to 1-In. Water Gauge with all present air inlets, air outlets, and condensate drain port(s) sealed. S HYBRID HEAT® Dual Fuel System compatible S All models are chimney friendly when used with accessory vent kit S Residential installations eligible for consumer financing through the Retail Credit Program THE CARRIER PERFORMANCEt BOOST 80 GAS FURNACE The 58PHA/PHX 4-way Multipoise Gas Furnaces offer deluxe features not found in other single-stage 80% gas furnaces. The ECM motor and Carrier’s control logic combine to provide a SEER BOOST of up to 1.5 points.* Carrier’s QuieTecht noise reduction system makes the Performancet Boost 80 an incredibly quiet induced-draft gas furnace. The gas furnace control system provides a dehumidification mode, a motor speed selection for continuous fan operation selectable at the thermostat, and fault code storage in the event of power outages. Applications are easy with 4-way multipoise design, through-the-furnace downflow venting, 13 different venting options, and a design for easy service access. An inner blower door is provided for tighter sealing in sensitive applications. The *as compared to the Air Conditioning Heating and Refrigeration Institute’s standard coil only rating when paired with selected Carrier evaporator coils. 1 MODEL NUMBER NOMENCLATURE 58PHA 045 100 08 Nominal Cooling Size (Airflow at .5 e.s.p.) 400 CFM per 12,000 Btuh) 08 800 CFM 12 1200 CFM 20 2000 CFM 58DLA/DLX Input Rates 045 44,000 Btuh 070 66,000 Btuh 090 88,000 Btuh 110 110,000 Btuh 135 132,000 Btuh A02169 A02169 A08063 A02170 HEAT EXCHANGER CONTROL BOARD INDUCER BLOWER 58PHA Deluxe 4 Way Multipoise 58PHX Low NOx Version 100 110 Series Number 2 FURNACE COMPONENTS INDUCER MOTOR ASSEMBLY VENT ELBOW MAIN LIMIT SWITCH (BEHIND GAS VALVE) PRESSURE SWITCH BLOCKED VENT SWITCH FLUE COLLECTOR BOX GAS VALVE FLAME SENSOR MANUAL RESET LIMIT SWITCHES GAS MANIFOLD HOT SURFACE IGNITOR GAS BURNER BLOWER DOOR SAFETY SWITCH FURNACE CONTROL BOARD BLOWER AND MOTOR CAPACITOR/ POWER CHOKE A10314 NOTE: The 58PHA/PHX Furnaces are factory shipped for use with natural gas. These furnaces can be field-converted for propane gas with a factory-authorized and listed accessory conversion kit. 3 58PHA CARRIER ACCESSORIES ON Electronic High Efficiency Air Filtration System OFF Cell Energized Input Power JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC A97432 CONTROLS: THERMOSTATS AND ZONING Available in programmable and non-programmable models, Carrier thermostats maintain a constant, comfortable temperature level in the home.