Honeywell - THM5421C1008 - VisionPRO IAQ interface module for up to 4H/2C

Item Number: HONTHM5421C1008  MFR Part Number: THM5421C1008/U


Visionpro IAQ Interface Module For Up To 4H/2C
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Vision Pro IAQ Interface Module, Controls Up To 4 Heat/2 Cool Stages When Connected with Thermostat. Visionpro Indoor Air Quality (Iaq) Total Home Comfort System Features Effortless, Seven-Day Programmable Touchscreen Thermostat That Provides Control Of Temperature, Humidification, Dehumidification, and Ventilation. Large, Clear Display with Backlight Shows The Current and Set Temperature and Time, Even In The Dark. Touchscreen Interaction. Real-Time Clock Keeps Time During Power Failures and Automatically Updates To Daylight Savings. Change/Check Reminders Let Homeowner Know When To Schedule Service or Replace Filters. Various Hold Options Allows Override Of The Program Schedule, As Desired. Controls Humidification To Increase Comfort and Protect Woodwork and Furnishings. Controls Dehumidification Using Air Conditioner with High/Low Speed Fan or A Whole-House Dehumidifier. Controls Ventilation with Other Hrv, Erv, or Fresh Air Damper. Vent On Demand and Automatically, Using Patented Advanced Ventilation Control. Advanced Heat Pump Control Features Balance Point Plus Temperature Droop Control To Increase Comfort Levels.

California residents: see Proposition 65 Warning

Weight0.65 Pounds (Lb)
Width4.5 Inches (In)
Height7.25 Inches (In)
Country of OriginMEX
Length1.375 Inches (In)
Voltage20-30 VAC
Electrical RatingTHM5421 is rated 20 to 30 VAC
Power MethodHardwired
Stages Cool2
Stages Heat3
IncludesEquipment Interface Module Only
ApplicationHeat/Cool or Heat Pump with Auxiliary Heat
Comments/NotesIncludes 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 and Advanced Dual Fuel Heat Pump Control.
For Use WithTH9421 VisionPRO IAQ Thermostat
Terminal Designations1, 2, 3, C, R, Rc, Rh, R, W1-O/B, W2-Aux, W3-Aux2, Y, Y2, G, L, Out1, Out2, In1, In2, Dats1, Dats2, Hum1, Hum2, Dhm1, Dhm2, Vnt1, Vnt2
TypeNot Provided Before Item Discontinued
Warranty OfferedYes