OEM Carrier Economizer Control Board HH63AW001 for Model TCHC1850HE401023

This is the genuine OEM Carrier Economizer Control Board (part number HH63AW001), the factory-specified replacement for the Carrier TCHC1850HE401023 commercial packaged unit. The economizer control board manages the outdoor air damper actuator, monitors enthalpy or dry-bulb sensors, and coordinates free-cooling operation to maximize energy efficiency. When this board fails, symptoms include the economizer damper stuck open or closed, loss of free-cooling mode, fault codes related to outdoor air control, or complete economizer lockout — all of which can result in comfort complaints and failed energy-code compliance.

• OEM Part Number: HH63AW001 | Carrier Economizer Control Board Kit | Factory-direct replacement — no modifications required
• OEM vs Generic: This is a genuine Carrier OEM board, pre-programmed and factory-calibrated to the exact sensor input thresholds and damper control logic required by the TCHC1850HE401023. Aftermarket alternatives may lack proper firmware, risking damper over-travel, sensor misreads, or non-compliance with ASHRAE 90.1 economizer requirements.
• Install Difficulty: 4/5 — Economizer board replacement is an advanced commercial HVAC task. A licensed commercial HVAC technician is strongly recommended. Tools required: multimeter, low-voltage test leads, flathead and Phillips screwdrivers, wire labels. Always photograph and label all wiring harnesses and sensor leads before disconnecting. Verify 24V control power is off before handling the board.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier TCHC1850HE401023 commercial packaged unit with factory economizer assembly. Verify your existing board's part number against HH63AW001 before ordering — economizer board variants can differ by sensor type (enthalpy vs. dry-bulb) and unit tonnage. Our HVAC parts specialists are available to confirm fitment before you purchase. Order now — in stock and ships today.