Honeywell YTH9421C1010 IAQ Total Home Comfort System A Y-Pack Containing A Th9421C1004 A Thm5421C1008 And A C7089U1006
List Price: $593.56 Sale Price: $534.20
Touch screen IAQ Total Home Comfort System. The VisionPRO IAQ touchscreen universal programmable thermostat provides electronic control of 24 Vac heating and cooling systems in addition to humidification, dehumidification and ventilation all with just 3 wires to the thermostat. Includes Humidification Control with or without Frost Protection, Dehumidification using Whole House Dehumidifier or Air Conditioning with High or Low speed fan, Advanced Patented Ventilation Control, Advanced Dual Fuel Heat Pump Control and outdoor air sensor. Replaces part W8900A1046.
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