OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCACCY50TM480778

This is a genuine OEM Carrier Factory Authorized Part — the HH63AW001 DCV Economizer Control Board Kit — factory-specified for the Carrier TCACCY50TM480778 commercial rooftop unit. The economizer control board is the brain of your unit's free-cooling and demand-controlled ventilation (DCV) strategy: it continuously monitors outdoor air temperature and CO₂/enthalpy conditions, then modulates the economizer damper to bring in the optimal blend of outside air. When this board fails, you may experience stuck-open or stuck-closed dampers, fault codes related to economizer operation, loss of free-cooling mode, poor indoor air quality, or full unit lockout during an economizer proving sequence.

• OEM Part Number: HH63AW001 | Cross-references: W7212A1017 | Carrier Factory Authorized Parts (FAP) designation | Voltage: 120V / 60Hz | Dimensions: approx. 4" × 4" × 2" | Weight: 1 lb
• OEM vs Generic: This is a genuine Carrier OEM board — not a third-party clone. OEM boards carry factory firmware, calibrated sensor thresholds, and full UL/safety ratings matched to your unit's control architecture. Generic boards risk firmware mismatches, incorrect damper sequencing, and voided equipment warranties.
• Install Difficulty: 4/5 — This is a commercial rooftop board replacement. Requires lockout/tagout, familiarity with low-voltage Class 2 wiring, and proper damper actuator re-commissioning after installation. Recommended tools: multimeter, insulated screwdrivers, wiring diagram (available from Carrier technical support). Always photograph all wiring harness connections before removal.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse. Packaged in original Carrier Factory Authorized Parts packaging.

Compatibility: Factory-specified for the Carrier TCACCY50TM480778 commercial packaged rooftop unit. Also cross-references W7212A1017 for compatible Bryant and Payne commercial RTU platforms. Verify your unit's full model and serial number against your wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order now and ship today.