Honeywell THM5421R1021 IAQ Equipment Interface Module

Product Information

Our inventory includes everything from air conditioner fan motors, compressor parts for HVAC, HVAC filter replacements, to thermostat components for heating systems. Please let me know if you have other questions or concerns as I will be locking this in 24 hours if I won't hear back from you again. Then you'll be able to select which homeowners see your logo based on the pricing per household (consumer will not be charged).

It's designed for easy installation and can be used with the THM5421R1012 or THM5421R1021U or THM5421R1021HWREDLINKEQUIPMENTINTERFACEMODULE. Right now there are absolutly no wires connected between the stat and the furnace or the equipment interface module. If you have any problems with the registration process or your account login, please contact support. Gas, Oil, Electric, Heat Pump, Forced Warm Air, Hot Water, Steam Or Gravity Application, Up To 3 Heat 2 Cool Heat Pump Or Up To 2 Heat 2 Cool Conventional Stages, For Use With Wireless FocusPRO Thermostats.From bathroom and kitchen products to pre-assembled installation kits and behind-the-wall products, you can count on Stream33 for convenience, quality and value. Everything seemed to work fine so as others have stated there is no problem having both the batteries and the 24v connected at the same time. Then there is the concern that my installer connected only the batteries and not the readily available 24V wiring.

To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. I want to replace my Honeywell thermostat that is only connected using 3 wires; Red, White and green to a nest thermostat.Our old heat-only thermostat had exactly two wires running to it from the boiler room: red and white (connected to the R and W terminals respectively). They design and manufacture products that allow buildings to be cooled, heated, ventilated, and humidified. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Powered by reliable RedLINK® technology, the Honeywell Home Equipment Interface Module works with up to 3 heat/2 cool pump systems. We make it easy and affordable for professionals and homeowners alike to find discounted air conditioning parts and wholesale heating system supplies.

My new thermostat booted and I was able to pair it with an in-house and an outside sensors with ease. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Whether you're in need of HVAC troubleshooting parts for a system that's not cooling, seeking out seasonal HVAC maintenance kits for summer AC repair parts and winter heating system upgrades, or simply looking for the best parts for AC repair and HVAC upgrade kits online, Cold Air Central is your go-to source.The Equipment Interface Module controls up to 4-stages of heat and 2-stages of cool in a heat pump system and up to 3-stages of heat and 2-stages of cool in a conventional system.