Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor

Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor

• Four sensor inputs for wired sensors or dry contact devices
• Three sets of IAQ contacts to control humidification, dehumidification, and ventilation
• Used with all versions of Prestige IAQ Thermostats and the New RedLINK VisionPRO Thermostats
• Four sensor inputs for wired sensors or dry contact devices
• Three sets of IAQ contacts to control humidification, dehumidification and ventilation
• Used with all versions of Prestige IAQ Thermostats and the New Relink VisionPRO Thermostats
• Four sensor inputs for wired sensors or dry contact devices
• Three sets of IAQ contacts to control humidification, dehumidification and ventilation
• Used with all versions of Prestige IAQ Thermostats and the New Relink VisionPRO Thermostats

This Honeywell IAQ Equipment Interface Module is used to 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.