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Honeywell THM5421R1021 Prestige 2-Wire IAQ Equipment Interface Module
THM5421R1021/U The Honeywell Home Prestige® 2-Wire IAQ Equipment Interface Module is compatible with RedLINK®-enabled thermostats. It 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.
UPC | 85267328180 |
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Brand/ Manufacturer | Honeywell |
Model # | THM5421R1021 |
Accessory Type | Thermostat (Wi-Fi) |