{"product_id":"902987-nordyne-4-7-wire-a-c-relay-box","title":"902987 Nordyne 4-7 wire A\/C - H\/P relay kit","description":"\u003ch1\u003e902987 Nordyne 4-7 wire A\/C - H\/P relay kit\u003c\/h1\u003e\n\u003ch2\u003e🔌 Product Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 902987\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eType\u003c\/strong\u003e: A\/C – H\/P Relay Box\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e: Allows connection of 2-wire and 4–7 wire thermostats to Nordyne electric furnaces when adding A\/C or heat pump\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCircuit board\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdapter harnesses\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMounting brackets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: ~6.5″ × 4″ × 1.5″\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e: ~2.82 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePackage Size\u003c\/strong\u003e: 10″ × 12″ × 12″\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eVendor\u003c\/strong\u003e: Nordyne\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis relay box acts as a bridge between the thermostat and furnace control board, enabling staged cooling and reversing valve control for heat pump systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e✅ Compatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe 902987 relay box is used when retrofitting or upgrading \u003cstrong\u003eNordyne electric furnaces\u003c\/strong\u003e that were not originally equipped for A\/C or heat pump operation:\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFurnace Series\u003c\/th\u003e\n\u003cth\u003eCompatible Models (Typical)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE1EH Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE1EH010H, E1EH015H, E1EH017H, E1EH020H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE2EH Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE2EH010HA, E2EH015HA, E2EH017HA, E2EH020HA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE1EB Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE1EB010H, E1EB015H, E1EB017H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE2EB Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE2EB010HA, E2EB015HA, E2EB017HA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE2BH Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE2BH017HA, E2BH020HA (heat pump-ready models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eAlso compatible with \u003cstrong\u003eIntertherm, Miller, and other Nordyne-manufactured mobile home electric furnaces.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e🛠️ Installation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRequired when upgrading from basic 2-wire thermostats to multi-stage cooling or heat pump setups\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIncludes all necessary wiring adapters and mounting hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for technician kits servicing mobile home electric furnaces with A\/C or H\/P retrofits \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e2 wire and 4-7 wire control box package used when adding a\/c or a heat pump to a Nordyne E1EH, E2EH, E1EB, E2EB \u0026amp; E2BH electric furnaces that are not already a\/c equipped. Also found on many M1 furnaces. For a replacement circuit board, order part number 624625. This will replace the obsolete 2-wire control box 902986 including control board 624567. When replacing a 2-wire system, you will need to order a 903992 4-5 wire thermostat. If you only have 2 thermostat wires running from the furnace to the thermostat, you will need to update that with a 4-7 wire cable. Box contains a circuit board and a variety of adapter harnesses. Includes mounting brackets. Box measures approximately 6.5\" x 4\" x 1.5\".\u003cbr\u003e\u003cbr\u003e\u003ca href=\"http:\/\/www.mobilehomerepair.com\/media\/img\/nordyne\/902987.pdf\" class=\"articles\"\u003eInfo sheet\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eReplaces 703110, 902798, 902986 \u0026amp; possibly others.\u003c\/p\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":13195393539,"sku":"902987","price":172.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/yhst-130159302524877_2272_663211608.jpeg?v=1566072845","url":"https:\/\/hvacpartstore.com\/products\/902987-nordyne-4-7-wire-a-c-relay-box","provider":"HVACpartstore","version":"1.0","type":"link"}