The zone consists of two rooms with different temperatures in them, so we wanted to replace it with a thermostat capable of taking a reading from a remote sensor. This Module will control 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.

They are also powering the totally wireless communication betweem my stat and the furnace via the equipment interface module which is in turn hard wired to the furnace. Understanding the importance of quality and reliability, we supply an extensive selection of energy-efficient heating equipment for sale, as well as energy-efficient HVAC equipment designed to elevate the functionality and efficiency of existing systems.I own a Honeywell VisionPRO thermostat (TH8320R1003) which is used to control my natural gas furnace through an Honeywell Equipment Interface Module (THM5421R1021). If you have any problems with the registration process or your account login, please contact support. Highly compatible with the Honeywell Prestige IAQ System, the THM5421R1021 module saves you time and money.

You can easily relocate a thermostat or upgrade equipment without running new wires when using this module and a wireless FocusPRO® thermostat. I suspect it is OK and even preferrable to do so and it sounds like jtrammel has already done this without any problems.I want to replace my Honeywell thermostat that is only connected using 3 wires; Red, White and green to a nest thermostat. Instead of saying it could be powered by either batteries or 24V they should say batteries and/or 24V. Then there is the concern that my installer connected only the batteries and not the readily available 24V wiring. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. These radio-using devices require wired-power -- 24VAC -- to talk to sensors so I decided to reuse the existing two wires to supply that, with the signaling done wirelessly.

We make it easy and affordable for professionals and homeowners alike to find discounted air conditioning parts and wholesale heating system supplies.We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. My new thermostat booted and I was able to pair it with an in-house and an outside sensors with ease.