Two-stage Variable-speed 80% Gas Furnace with Comfort ECM

Air Conditioning Repair Houston multipoise Two-stage Variable-speed carrier Gas furnace

58CTW Variable-speed Two-stage 80% Gas Furnace

The 58CTW variable-speed, two-stage, 4-way multipoise gas furnaces offer unmatched comfort in their class with Comfort Heat Technology in an 80% AFUE gas furnace. You get the benefits of a Comfort Heat Technology furnace: reduced drafts, reduced sound levels, longer cycles, less temperature swing between cycles, and less temperature difference between rooms. Its exclusive, intelligent microprocessor control adapts to the heating needs of the home by automatically adjusting high and low heat times to maximize comfort. The 58CTW furnace is approved for use with natural or propane gas and uses the Comfort ECM blower motor for variable-speed comfort. The 58CTW furnaces feature:


Comfort Heat Technology

  • Two-stage heating with single-stage thermostat
  • Very low operating sound through low-stage operation and Quiet Tech system
  • Microprocessor based “smart” control center:
  • Adapts heating stages to meet demand
  • Dehumidification selection for summertime cooling
  • Adjustable heating air temperature rise
  • Adjustable cooling airflow
  • Comfort Fan – Constant fan speed selectable from thermostat
  • LED diagnostics and self-test feature
  • Stores fault codes during power outages
  • 4-way multipoise furnace, 13 vent applications
  • Comfort ECM & trade variable-speed blower motor
  • Hot Surface Ignition (HSI)
  • Draft safeguard switch to ensure proper furnace venting
  • Insulated blower compartment
  • Heat pump compatible
  • All models are chimney-friendly when used with accessory vent kit.

Pulse Width Modulation (PWM) Motor
Pull out all the stops with the PWM-ECM blower motor. Rather than using five discrete set points for fan speeds, a PWM motor works through programming.Each time the controller switches a stator winding on and off, it is called a Pulse. The length of time each pulse stays on is called the Width. By varying the pulse width, the controller varies the motor speed (or, “Modulation).



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