{"product_id":"white-rodgers-21m51u-843-2-stage-furnace-control-kit-html","title":"White-Rodgers 21M51U-843 2 Stage Furnace Control Kit","description":"\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eWhite-Rodgers 21M51U-843 Universal Two-Stage HSI Furnace Control Kit\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eReplaces White-Rodgers 50M51-242 and All 50M61-XXX Two-Stage HSI Systems with 80V or 120V Ignitor.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e120 VAC Ignitor Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e120 VAC Two-Speed Inducer Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e120 VAC Humidifier Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e120 VAC Electronic Air Cleaner Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e120 VAC 3-Speed PSC Circulator Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e2-Stage Gas Valve Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eFuse Protection 3 Amp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eFurnace Status LED Tri-Color (Green, Red and Amber)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eHeat Fan OFF Delay (Dipswitch Selectable)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eFan ON Delay for Cooling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eAuto Second Stage Delay (Dipswitch Selectable Mode)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eHistorical Fault Retrieval by Pushbutton\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eYLO, Y, W1, W2, R, G, C, TWIN Terminals\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003ePressure Switch Inputs and Monitoring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eFlash Microprocessor with Non-Volatile Memory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eFlame Current Measurement Points\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eElectrical Ratings [@ 77°F (25°C)]\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eInput Voltage: 24 VAC, 60 Hz (Class II transformer required)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eNom. Input Current @ 24 VAC: 530 mA + MV\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eRelay Load Ratings\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eGas Valve Relays: 1.5 amps @ 24 VAC, 60 Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eInducer Relays: 2.2 FLA 3.5 LRA @ 120 VAC\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eCirculator Relays: 14.5 FLA 25.0 LRA @ 120 VAC\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eHumidifier Load: 1.0 amp max. @ 120 VAC\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003e Electronic Air Cleaner Load: 1.0 amp max. @ 120 VAC\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eIgnitor Relay: 4.0 amps max. @ 132 VAC, 60 Hz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eFlame Current Requirements\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eMinimum current to insure flame detection: 0.3 DC*\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eMaximum current for non-detection: 0.1 DC*\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003e Maximum allowable leakage resistance: 100 M ohms\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003e   *Measured with a DC microammeter in the flame probe lead\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003e-40° to 175°F (-40° to 80°C)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003e5% to 93% relative humidity (non-condensing)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eTiming Specifications (@ 60 Hz)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: large;\"\u003eFlame Failure Response Time: 2.0 sec. max.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eGases Approved:\u003c\/strong\u003e Natural, Manufactured, Mixed, Liquefied Petroleum and LP Gas\/Air Mixtures are all approved for use\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eKit Includes:\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eIgnition Control Module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Universal 120V Nitride Ignitor Kit 21D64-2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Installation Instructions and OEM Cross-Reference\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eReplaces:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eWhite-Rodgers 18M3401,20300001, 20300003, 46M9901, 50M51-242, 50M61-120, 50M61-288, 50M61-289, 50M61-495, 50M61-843, 83L9301, CNT03077, X13650839010\u003c\/span\u003e\u003c\/p\u003e","brand":"Copeland Comfort Control LP","offers":[{"title":"Default Title","offer_id":41471841173578,"sku":"WHIT23","price":312.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3549\/7290\/files\/34927__25273.1484848914.1280.1280.jpg?v=1720529803","url":"https:\/\/c38b33-2.myshopify.com\/products\/white-rodgers-21m51u-843-2-stage-furnace-control-kit-html","provider":"Climatedoctors","version":"1.0","type":"link"}