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ComfortNet™ Communicating Control & System — CTK02


  • Advanced modulation control
  • Independent humidification control
  • Dehumidification control
  • Removable faceplate (gray and white included)
  • Intuitive installer menus
  • Adjustable maximum heat and cool settings
  • Extra-large touchpad for easy operation
  • Easy-to-read character size
  • Advanced diagnostics and fault code display
  • Fahrenheit/Celsius display
  • Optional continuous LED back-lighted display
  • Maximum four-wire low-voltage control wiring connection
  • Only two wires required to outdoor unit when used with optional outdoor transformer
  • Auto-setup and configuration of dipswitches
  • Hard-wired with battery back-up
  • Meets California Building Code, Title 24
  • Fast or slow heating cycle anticipation
  • Fast energizing between stages of heat and cool
  • Active system diagnostics
  • “Call for Service” diagnostic indicator
  • Dual-fuel heat pump compatible
  • Audible beep alert on key press
  • Humidifier pad maintenance reminder
  • Air filter maintenance reminder
  • UV lamp maintenance reminder
  • Humidifier pad replacement reminder
  • Adjustable brightness and keypad adjustment
  • Customizable home screen
  • Low-profile design
  • Seven-day programmable system
  • Four steps per daily schedule sequence
  • Simultaneous heat and cool program storage
  • Auto heat / cool change-over option: automatically switches between heating and cooling programs
  • Selectable continuous fan speeds
  • Dehumidification control
  • Airflow speed trimming adjustment
  • Energy Management Recovery program (EMR)
  • Program-loss, start‑up temperature
  • USB uploadable dealer information and set-point profiles


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