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Honeywell Thermostat Equipment Interface Module

THM5421R1021

$55.99
Retail: $64.99 /ea
You Save: 14%
As low as
$55.99
Retail: $64.99
You Save: 14%
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The Honeywell Thermostat Equipment Interface Module is the correct component used with the following:

  • All versions of Prestige IAQ Thermostats
  • VisionPRO Thermostats with RedLINK technology
  • All THX9421R5021 Prestige 2-Wire IAQ Thermostats

The Honeywell Thermostat Equipment Interface Module controls up to 4 stages of heat and 2 stages of cool in a heat pump system. In a conventional system, it controls up to 3 stages of heat and 2 stages of cool. This module is used in gas, oil, electric, heat pump, forced warm air, hot water, gravity or steam applications. There are three sets of universal IAQ contacts to control humidification, ventilation and dehumidification.

Honeywell Thermostat Equipment Interface Module Specifications:

  • THM5421R1021
  • Color: Gray
  • Power Method: Hardwired
  • Thermostat Equipment Interface Module
  • Electrical Connections: Screw Terminals
  • Dimensions: 9 5/16" (High) x 4 13/16" (Wide) x 1 5/8" (Deep)
  • Operating temperature: -40 degrees Fahrenheit (-40 degrees Celsius) to 165 degrees Fahrenheit (73.9 degrees Celsius)
  • Used: All THX9421R5021 Prestige 2-Wire IAQ Thermostats, all versions of Prestige IAQ Thermostats and the VisionPRO Thermostats with RedLINK technology

The Honeywell Thermostat Equipment Interface Module can be mounted vertically and four sensor inputs for wired sensors or dry contact devices are included.


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