{"product_id":"carrier-tchc1850he403396-control-board-11kz9v","title":"OEM Carrier DCV Economizer Control Board Kit HH63AW001 — TCHC1850HE403","description":"\u003ch1\u003eOEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403396\u003c\/h1\u003e\u003cp\u003eThis is a genuine OEM Carrier Factory Authorized Part — the DCV (Demand-Controlled Ventilation) Economizer Control Board Kit, part number \u003cstrong\u003eHH63AW001\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier TCHC1850HE403396\u003c\/strong\u003e commercial rooftop unit. The economizer control board is the intelligence center of your unit's economizer module: it continuously reads outdoor air quality and temperature sensors, then modulates the damper actuator to blend the optimal ratio of outside and return air — reducing mechanical cooling load and satisfying ASHRAE ventilation requirements. When this board fails, symptoms include a stuck-open or stuck-closed damper, inability to enable free-cooling mode, DCV sensor faults, or full unit lockout with a control board error code.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V | 60 Hz | Dimensions approx. 4.7\" × 3.2\" | Weight 1 lb | Cross-reference: W7212A1017 | OEM Part: HH63AW001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part — not an aftermarket substitute. OEM boards ship pre-configured with factory firmware and tolerance-matched sensor inputs, eliminating the calibration drift and compatibility risks common with third-party economizer boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disabling unit power at the disconnect and documenting all low-voltage wiring before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wiring diagram (available in unit service manual). Configuration of DCV setpoints may require a technician interface tool or jumper adjustment per the installation instructions included in the kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM Carrier factory warranty on parts. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model TCHC1850HE403396\u003c\/strong\u003e commercial rooftop equipment. Also cross-references Honeywell W7212A1017. Verify your unit's existing board part number on the component label before ordering — our team is available to confirm fitment. Order today and restore full economizer and DCV functionality to your rooftop system.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640277717363,"sku":"CARRIE-TCHC1850HE403396-CONTROL_BOARD-HH63AW001","price":325.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640277750131,"sku":"CARRIE-TCHC1850HE403396-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_fabde780-f8d2-461e-91b4-535ad34f7874.jpg?v=1775026258","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he403396-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}