Honeywell THM5421R1021/U

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. Three sets of Universal IAQ contacts to control humidification, dehumidification and ventilation. Four sensor inputs for wired sensors or dry contact devices.

Honeywell Prestige® Equipment Interface Module, 2-Wire, For Use With: All THX9421R5021 Prestige® 2-Wire IAQ Thermostats and all Versions of Prestige® IAQ Thermostats and the VisionPRO® Thermostats with RedLINK™ Technology, 18 to 30 VAC 50/60 Hz, Screw Terminal, Gray, 9-5/16 in H x 4-13/16 in W x 1-5/8 in D, Import

• 5 to 95 percentage RH, non-condensing operating humidity
• -40 to 165 deg F operating temperature
• 1 a running cool or heat, 0.5 a running fan
• Stages up to 4 heat or 2 cool heat pump or up to 3 heat or2 cool conventional
• Screw terminal