{"product_id":"honeywell-thm5421r1021-u-equipment-interface-module-18-30-vac-single-thm5421r1021-u","title":"Honeywell THM5421R1021\/U Equipment Interface Module 18-30 VAC (Single) THM5421R1021\/U","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell THM5421R1021\/U is an equipment interface module for Prestige IAQ and VisionPRO 8000 thermostats with RedLINK. It supports up to 4 heat\/2 cool heat pump or 3 heat\/2 cool conventional configurations, operates on 18–30 VAC, and provides three universal IAQ contacts plus four sensor inputs for wired sensors or dry contact devices. The module is configurable for residential and light commercial installations and mounts in a wall-mount plastic enclosure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports up to 4 heat \/ 2 cool (heat pump) or up to 3 heat \/ 2 cool (conventional) stages\u003c\/li\u003e\n  \u003cli\u003eOperates on 18–30 VAC and provides three universal IAQ contacts for humidification, dehumidification, and ventilation control\u003c\/li\u003e\n  \u003cli\u003eIncludes four sensor inputs for wired sensors or dry contact devices; compatible with Prestige IAQ and VisionPRO 8000 with RedLINK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003eMulti-stage HVAC control; three IAQ contacts; four sensor inputs; RedLINK compatibility; wall-mount enclosure.\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HONEYWELL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: THM5421R1021\/U\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Honeywell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: THM5421R1021\/U\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Equipment Interface Module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Prestige IAQ and VisionPRO 8000 with RedLINK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Capacity\u003c\/strong\u003e: Up to 4 Heat \/ 2 Cool (heat pump) or up to 3 Heat \/ 2 Cool (conventional)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage\u003c\/strong\u003e: 18-30 VAC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIAQ Contacts\u003c\/strong\u003e: 3 sets of universal IAQ contacts (humidification, dehumidification, ventilation)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor Inputs\u003c\/strong\u003e: 4 sensor inputs for wired sensors or dry contact devices\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Wall mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Material\u003c\/strong\u003e: Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: -40 to 165°F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 9.3125 x 4.8125 x 1.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.90 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminals\u003c\/strong\u003e: R, RC, RH, C, W-O\/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L\/A, U1, U2, U3, S1, S2, S3, S4, A, B, C, D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Residential and light commercial\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"HONEYWELL","offers":[{"title":"Default Title","offer_id":51467398349106,"sku":"THM5421R1021\/U","price":133.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313940587.jpg?v=1783903545","url":"https:\/\/voomisupply.com\/products\/honeywell-thm5421r1021-u-equipment-interface-module-18-30-vac-single-thm5421r1021-u","provider":"Voomi Supply","version":"1.0","type":"link"}