{"product_id":"carrier-tchc1850he401484-control-board-11kz9v","title":"OEM Carrier Economizer Control Board Kit HH63AW001 — TCHC1850HE401484","description":"\u003ch1\u003eOEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE401484\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Economizer Control Board Kit (part# \u003cstrong\u003eHH63AW001\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier TCHC1850HE401484\u003c\/strong\u003e commercial rooftop unit. The economizer control board is the intelligence hub of your unit's free-cooling system — it continuously monitors indoor and outdoor air conditions, modulates the outdoor air damper, and manages demand-controlled ventilation (DCV) signals to maximize energy savings while maintaining proper indoor air quality. When this board fails, symptoms include a locked-open or locked-closed damper, loss of DCV\/CO₂ sensor communication, fault codes on the unit controller, or the unit running full mechanical cooling when free-cooling should be available — all of which spike energy costs and compromise occupant comfort.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HH63AW001 | Cross-reference: W7212A1017 | Factory Authorized Carrier OEM replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input Voltage: 120V | Frequency: 60Hz | Dimensions: ~4\" × 4\" × 2\" | Weight: 1 lb | All inputs Class 2 rated | Compatible with CO₂\/DCV sensor inputs for demand-controlled ventilation\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 approximation. OEM boards carry factory-programmed logic, exact terminal layouts, and tested communication protocols. Generic boards risk damper calibration errors, sensor incompatibility, and premature failure that void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and 120V wiring harnesses, labeling all DCV sensor leads, and verifying damper actuator feedback after installation. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and access to the unit's wiring diagram. Always de-energize the unit at the disconnect before servicing. Recommend a qualified commercial HVAC technician for this replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse in original Carrier packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eTCHC1850HE401484\u003c\/strong\u003e commercial rooftop unit with factory DCV economizer configuration. Also cross-references W7212A1017. Verify your existing board's part number on the unit data plate or control compartment label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640278372723,"sku":"CARRIE-TCHC1850HE401484-CONTROL_BOARD-HH63AW001","price":366.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640278405491,"sku":"CARRIE-TCHC1850HE401484-CONTROL_BOARD-HH63AW001-GEN","price":322.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HH63AW001_0e1416ae-579d-4b61-b175-bad54257af1a.jpg?v=1775028985","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he401484-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}