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Honeywell YTH9421C1010 VisionPRO IAQ Total Home Comfort System 7 Day Programmable Communicating Touchscreen 4H / 2C Heat Pump 3H / 2C Conventional Thermostat with Outdoor Sensor - DISCONTINUED

Honeywell YTH9421C1010 - VisionPRO IAQ Total Home Comfort System 7 Day Programmable Communicating Touchscreen 4 Heat / 2 Cool Heat Pump 3 Heat / 2 Cool Conventional Thermostat with Outdoor Sensor

This product is a brand new genuine Honeywell YTH9421C1010 - VisionPRO IAQ Total Home Comfort System 7 Day Programmable Communicating Touchscreen 4 Heat / 2 Cool Heat Pump 3 Heat / 2 Cool Conventional Thermostat with Outdoor Sensor.

If you have any questions regarding this product please feel free to email [email protected] or call 1-855-932-4822 and one of our friendly Customer Experience Representatives will be more than happy to help.


  • Dimensions: 4-9/16"H x 6"W x 1-1/4"D
  • Includes: TH9421C1004 Thermostat, THM5421C1008 Equipment Interface Module and C7089U1006 Outdoor Temperature Sensor
  • Mounting: Horizontal
  • Electrical Ratings: Equipment Interface Module 20 to 30 Vac
  • Stages: Up to 4 Heat/2 Cool Heat Pump; Up to 3 Heat/2 Cool Conventional
  • Operating Humidity Range (% RH): 5 to 90, Non-Condensing
  • Sensor Element: Thermistor
  • Terminal Designations: 1, 2, 3, C, R, Rc, Rh, R, W1-O/B, W2-AUX2, Y, Y2, G, L, Out1, Out2, In1, In2, Dats1, Dats2, Hum1, Hum2, Dhm1, Dhm2, Vnt1, Vnt2
  • Setting Temperature Rante (F): Heat - 40 to 90; Cool - 60 to 99
  • Humidification Setting Range (% RH): 10 to 60
  • Dehumidification Setting Range (% RH): 40 to 80
  • Honeywell YTH9421C1010 VisionPRO IAQ Total Home Comfort System 7 Day Programmable Communicating Touchscreen 4H / 2C Heat Pump 3H / 2C Conventional Thermostat with Outdoor Sensor - DISCONTINUED

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