OEM Carrier Economizer Control Board Kit HH63AW001 for Model TCHC1850HE401028

This is the factory OEM replacement Economizer Control Board Kit (Part # HH63AW001) for the Carrier TCHC1850HE401028 commercial packaged unit. The economizer control board manages the outdoor air damper actuator, enthalpy/dry-bulb sensors, and free-cooling logic that allows the unit to use outside air for cooling when conditions are favorable — reducing compressor runtime and energy costs. When this board fails, symptoms typically include a damper stuck in the fully open or fully closed position, loss of free-cooling operation, active economizer fault codes on the thermostat or DDC controller, or erratic damper hunting during operation.

• Specs: OEM Kit Part # HH63AW001 | Factory-matched to Carrier TCHC1850HE401028 commercial rooftop/packaged unit | Includes control board and all required mounting hardware | Compatible with Carrier's integrated economizer assembly
• OEM vs Generic: This is a genuine Carrier OEM board — pre-configured with the exact firmware, logic thresholds, and I/O mapping for the TCHC1850HE401028. Aftermarket boards frequently require manual calibration, lack enthalpy curve matching, and may void equipment warranties.
• Install difficulty: 3/5 — Requires safe lockout/tagout of the unit before access. Tools needed: 1/4" and 5/16" nut drivers, flathead screwdriver, multimeter, wiring diagram (refer to unit's service manual). Photograph all low-voltage wiring connections before disconnecting. Recommend testing damper actuator independently before condemning the board.
• Warranty: 1-year OEM factory warranty on parts. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier TCHC1850HE401028 commercial packaged unit with factory-installed economizer. Always cross-reference the part number on your existing board's label before ordering. Need fitment confirmation? Our HVAC parts specialists are available to verify compatibility before you buy — same-day shipping guaranteed on in-stock orders.