{"product_id":"carrier-tchc1850he403349-control-board-11kz9v","title":"OEM Carrier Economizer Control Board Kit HH63AW001 — TCHC1850HE403349","description":"\u003ch1\u003eOEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403349\u003c\/h1\u003e\u003cp\u003eThis is a genuine OEM Carrier Economizer Control Board Kit (part #HH63AW001), factory-specified for the \u003cstrong\u003eCarrier TCHC1850HE403349\u003c\/strong\u003e commercial packaged rooftop unit. The economizer control board is the intelligence center of the unit's demand-controlled ventilation (DCV) system — it continuously monitors outdoor air conditions and modulates the economizer damper to blend the optimal ratio of outdoor and recirculated air. When this board fails, common symptoms include stuck-open or stuck-closed dampers, loss of demand-controlled ventilation, increased energy consumption, fault codes on the thermostat or BMS, and degraded indoor air quality (IAQ) in the conditioned space.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HH63AW001 | Cross-reference: W7212A1017 | Input voltage: 120V \/ 60Hz | Dimensions: approx. 4\" × 4\" × 2\" | Weight: 1 lb | Class 2 inputs | Factory Authorized Parts — Carrier Corporation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part, manufactured to exact OEM tolerances. Generic or aftermarket control boards often lack proper firmware calibration for Carrier DCV sequences, risking damper hunting, incorrect free-cooling lockout temperatures, and potential ASHRAE 62.1 compliance failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect and lock out power before beginning. Document all wiring connections with photographs before removing the old board. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 120V supply and 24V control circuit). Commercial rooftop application — follow all applicable electrical codes. Professional installation recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier TCHC1850HE403349\u003c\/strong\u003e commercial rooftop unit. Cross-references OEM part numbers HH63AW001 and W7212A1017. Verify your unit's data plate and existing board part number before ordering. Not sure it fits? Contact our expert parts team — we confirm fitment before you buy. Order now and receive same-day shipping on in-stock inventory.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640278307187,"sku":"CARRIE-TCHC1850HE403349-CONTROL_BOARD-HH63AW001","price":337.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640278339955,"sku":"CARRIE-TCHC1850HE403349-CONTROL_BOARD-HH63AW001-GEN","price":297.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HH63AW001_788ad4b4-30e2-4524-8b67-81872039ddbf.jpg?v=1775028988","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he403349-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}