OEM Carrier DCV Economizer Control Board Kit HH63AW001 for TCHC1850HE401025

This is a genuine OEM Carrier Factory Authorized Part (HH63AW001), the direct factory replacement for the DCV Economizer Control Board Kit used in the Carrier TCHC1850HE401025 commercial rooftop unit. The economizer control board is the intelligence center of your unit's free-cooling system — it continuously monitors outdoor air conditions, CO₂ levels (in DCV-equipped systems), and enthalpy to determine when and how much outside air to introduce. When this board fails, symptoms include economizer damper stuck open or closed, fault codes indicating economizer communication errors, poor indoor air quality, increased energy consumption, and failed building energy code compliance.

• Part Specs: OEM Part# HH63AW001 | Cross-ref: W7212A1017 | Voltage: 120V / 60Hz | Dimensions: approx. 4" × 4" × 2" | Weight: 1 lb | Factory Authorized Carrier Replacement Components Division part
• OEM vs Generic: This is a factory-matched OEM board engineered to exact tolerances for the TCHC1850HE401025 platform. Generic aftermarket boards may lack DCV (Demand Controlled Ventilation) compatibility, potentially causing compliance failures and code violations in commercial installations.
• Install Difficulty: 3/5 — Commercial rooftop work. Lock out/tag out the unit before beginning. Tools needed: ¼" and 5/16" nut drivers, needle-nose pliers, multimeter, torque screwdriver. Photograph all wiring harness connections before disconnecting. Verify all sensor inputs are reseated and DCV sensor (if applicable) is re-calibrated after install. Recommend licensed HVAC technician for commercial units.
• Warranty: 1-year OEM manufacturer warranty. Orders placed before 3PM EST ship same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier TCHC1850HE401025 commercial rooftop unit. Also cross-references Honeywell W7212A1017 economizer controllers used in Carrier/Bryant/Payne rooftop platforms. Always verify your existing board's part number on the component label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.