58CTA/58CTX2 Stage Deluxe Induced-Combustion4-Way Multipoise FurnaceForm No. 58CT-5SI 1-05Installation, Start-up, Operating, and Serviceand Maintenance Instructions-Series 110THE PERFORMANCE 80 GAS FURNACEThe 58CTA/CTX Two-Stage, 4-way Multipoise Gas Furnaces offer unmatched comfort in their class withComfortHeat™ Technology in an 80% AFUE gas furnace. You get the benefits of a ComfortHeat™ Technologyfurnace: reduced drafts, reduced sound levels, longer cycles, less temperature swings between cycles, and lesstemperature differences between rooms. Its exclusive, intelligent microprocessor control adapts to the heating needsof the home by automatically adjusting high and low heat times to maximize comfort. The 58CTA/CTX furnaces areapproved for use with natural or propane gas, and the 58CTX is also approved for use in Low NOx Air QualityManagement Districts.STANDARD FEATURES- ComfortHeat™ TechnologyTwo-stage heating with single-stage thermostatVery low operating sound through low-stage operation andQuieTech™ system- Media Filter Cabinet Available- Microprocessor based "smart" control centerAdapts heating stages to meet demandDehumidification selection for summer-time coolingAdjustable heating air temperature riseAdjustable cooling airflowComfortFan™--Constant fan speed selectable fromthermostatLED diagnostics and self test featureStores fault codes during power outages- 4-way Multipoise furnace, 13 vent applications- Hot surface ignition (HSI)- Draft safeguard switch to ensure proper furnace venting- All Models Chimney-Friendly when used with theaccessory vent kit.- Insulated blower compartment- Heat pump compatible- Residential installations eligible for consumer financingthrough the Retail Credit Program- Twinning in Upflow, Downflow and HorizontalCERTIFIED ®LIMITED WARRANTY- 20-year warranty on "Super S™" heat exchanger- 5-year parts warranty on all other componentsCatalog No: 535-80124