The Resideo THM5421R1021 is a 2-Wire IAQ Equipment Interface Module designed to integrate indoor air quality accessories with RedLINK-enabled HVAC systems. It acts as a wireless control bridge, allowing thermostats to manage humidifiers, dehumidifiers, ventilators, and other IAQ devices using a simple two-wire connection. The module communicates via RedLINK technology to coordinate operation based on system demand. Used with forced-air furnaces, heat pumps, and air handlers, it simplifies installation, reduces wiring complexity, and delivers reliable IAQ control, improved comfort, system efficiency, and flexible equipment compatibility.
For an efficient and reliable HVAC system, the Resideo 2-Wire IAQ Equipment Interface Module RedLINK is a great choice for optimal system performance.
#Resideo #ResideoParts #THM5421R1021 #InterfaceModule #HVACParts #FurnaceParts #AirConditionerParts
Visit The Website : https://www.partshnc.com/thm5421r1021-resideo-interfacemoduleredlinkiaq
Resideo THM5421R1021 2-Wire IAQ Equipment Interface Module RedLINK
Published on January 28, 2026
Published by Edison
Viewed by 3 people
Description of item
Location
Country
United States
Region
IL
City
Chicago
Address
700 Nicholas BLVD Suite 105 Elk Grove Village IL 60007
Seller information
Name
Edison
Phone
8667730XXX
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Registered
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Location
Chicago in IL, United States
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