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Find the user manual you need for your home appliance products and more at ManualsOnline. Carrier 33CS450-01 Thermostat User Manual.Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. Configurable Output Jumper: Using We have 4 Carrier 33CS450-01 manuals available for free PDF download: Owner's Programming the Thermostat to Display Temperature in Fahrenheit or Celsius. Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. Owner's Manual. Part Number 33CS220-01 IMPORTANT: Read entire instructions before program- Carrier's 7-day, commercial, programmable thermostats.