OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403404

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 TCHC1850HE403404 commercial packaged unit. The economizer control board serves as the intelligence center for your unit's economizer system, continuously monitoring outdoor air conditions and modulating the outdoor air damper to optimize the balance between free cooling, indoor air quality, and energy efficiency. When this board fails, you may experience a stuck-open or stuck-closed damper, loss of demand-controlled ventilation (DCV) operation, fault codes related to economizer function, or degraded indoor air quality and increased energy consumption.

• OEM Part Number: HH63AW001 | Cross-reference: W7212A1017 | Factory Authorized Parts — exact fit, no modifications required
• Specs: Input Voltage: 120V | Frequency: 60Hz | Dimensions: approx. 4" × 4" × 2" | Weight: 1 lb | All inputs Class 2 | DCV (Demand-Controlled Ventilation) capable
• OEM vs Generic: This OEM board is factory-programmed and calibrated to Carrier specifications. Generic substitutes may lack DCV logic, correct damper actuator signaling, or proper fault-code integration — risking code violations, comfort complaints, and compressor damage from uncontrolled outdoor air ingestion.
• Install Difficulty: 3/5 — Requires disabling the unit at the disconnect before access. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, multimeter, and wiring diagram (attached to unit door). Photograph all wiring connections before disconnecting. Recommend verifying CO₂ sensor and actuator function after board replacement. Best performed by a licensed commercial HVAC technician.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered for the Carrier TCHC1850HE403404 commercial packaged unit. Also cross-references Honeywell W7212A1017. Always verify the part number on your existing board's label before ordering — our fitment team is available to confirm compatibility prior to purchase. In stock and ready to ship today.