OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TFACCY48TM482634

This is a genuine OEM Carrier Factory Authorized Part — the HH63AW001 DCV Economizer Control Board Kit — designed as the factory-specified replacement for the Carrier TFACCY48TM482634 commercial rooftop unit. The economizer control board is the intelligence hub of your unit's free-cooling system: it continuously monitors outdoor air enthalpy and CO₂/DCV (Demand Controlled Ventilation) sensor inputs, then modulates the damper actuator to maximize use of outside air when conditions allow. When the board fails, you may experience loss of economizer function, stuck dampers (full open or full closed), active fault codes on the unit controller, or compressor short-cycling caused by improper outdoor air mixing. Replacing the board with the correct OEM kit restores factory-calibrated control logic and sensor compatibility.

• Specs: OEM Part # HH63AW001 | Cross-reference: W7212A1017 | Input voltage: 120V / 60Hz | Dimensions: approx. 4" × 4" × 2" | Weight: 1 lb | All inputs Class 2 | Factory Authorized Parts (Carrier Corporation)
• OEM vs Generic: This is a genuine Carrier OEM board with factory-programmed DCV logic and exact sensor calibration. Aftermarket boards may lack CO₂ input compatibility or use non-matched firmware, resulting in improper damper positioning and building code compliance issues for commercial applications.
• Install difficulty: 3/5 — Requires disconnecting low-voltage Class 2 wiring harnesses and documenting DIP switch settings before removal. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, needle-nose pliers, smartphone (to photograph wiring). Recommend qualified HVAC-R technician for commercial RTU work. Verify DCV sensor wiring compatibility before powering up.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse in original Carrier Factory Authorized Parts packaging.

Compatibility: Engineered for the Carrier TFACCY48TM482634 commercial packaged rooftop unit. Cross-references Honeywell W7212A1017. Confirm your existing board's part number and DCV configuration before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you order if you have any questions.