{"product_id":"carrier-tchc1850he403395-control-board-11kz9v","title":"OEM Carrier DCV Economizer Control Board HH63AW001 — TCHC1850HE403395","description":"\u003ch1\u003eOEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403395\u003c\/h1\u003e\u003cp\u003eThis is a genuine OEM Carrier Economizer Control Board Kit (part# \u003cstrong\u003eHH63AW001\u003c\/strong\u003e), the factory-authorized replacement for the \u003cstrong\u003eCarrier TCHC1850HE403395\u003c\/strong\u003e commercial rooftop unit. The DCV (Demand-Controlled Ventilation) economizer control board serves as the intelligence center of your unit's economizer system — it continuously monitors outdoor air conditions, CO₂ levels (when a DCV sensor is present), and enthalpy to determine when free-cooling with outside air is both possible and energy-efficient. When this board fails, symptoms include the economizer damper becoming stuck open or closed, fault codes related to the economizer circuit, loss of free-cooling operation, or the unit failing to meet ventilation code requirements entirely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number \u0026amp; Specs:\u003c\/strong\u003e OEM Carrier HH63AW001 | DCV Economizer Control Board Kit | Input Voltage: 120V \/ 60Hz | Cross-reference: W7212A1017 | Dimensions: approx. 4\" × 4\" × 2\" | Weight: ~1 lb | All inputs Class 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory-authorized OEM board is pre-programmed to Carrier's exact DCV logic and enthalpy algorithms. Aftermarket substitutes may lack proper DCV calibration, leading to ventilation code violations and increased energy consumption — particularly critical in commercial applications subject to ASHRAE 62.1 compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Commercial rooftop economizer board replacement requires safe rooftop access and lockout\/tagout procedures. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a laptop with Carrier service software if DCV sensor recalibration is required. Always photograph all wiring harness connections before removal. Recommended for qualified HVAC technicians.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. Ships same business day from our warehouse — get your commercial system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier TCHC1850HE403395\u003c\/strong\u003e commercial rooftop unit. Also cross-references Honeywell W7212A1017. Verify your existing board's part number against HH63AW001 before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order — contact us today and we'll ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640277782899,"sku":"CARRIE-TCHC1850HE403395-CONTROL_BOARD-HH63AW001","price":325.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640277815667,"sku":"CARRIE-TCHC1850HE403395-CONTROL_BOARD-HH63AW001-GEN","price":286.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HH63AW001_94f67afa-9e03-47ec-aae7-7f595a1a9c14.jpg?v=1775026244","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he403395-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}