Honeywell Honeywell THM5421R1021 Interface Module for Prestige 2Wire IAQ partsautozone PLEASANT Fashionable

Description

Honeywell Prestige 2-Wire IAQ Equipment Interface Module

The Honeywell THM5421R1021 is a Equipment Interface Module that 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. Three sets of Universal IAQ contacts to control humidification, dehumidification, and ventilation. Four sensor inputs for wired sensors or dry contact devices. This module can be used with all THX9421R5021 Prestige® 2-Wire IAQ Thermostats and all versions of Prestige® IAQ Thermostats and the VisionPRO® Thermostats with RedLINK™ technology. This module is designed for gas, oil, electric, heat pump, forced warm air, hot water, steam, or gravity applications.