OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403396

This is a genuine OEM Carrier Factory Authorized Part — the DCV (Demand-Controlled Ventilation) Economizer Control Board Kit, part number HH63AW001, factory-specified for the Carrier TCHC1850HE403396 commercial rooftop unit. The economizer control board is the intelligence center of your unit's economizer module: it continuously reads outdoor air quality and temperature sensors, then modulates the damper actuator to blend the optimal ratio of outside and return air — reducing mechanical cooling load and satisfying ASHRAE ventilation requirements. When this board fails, symptoms include a stuck-open or stuck-closed damper, inability to enable free-cooling mode, DCV sensor faults, or full unit lockout with a control board error code.

• Specs: 120V | 60 Hz | Dimensions approx. 4.7" × 3.2" | Weight 1 lb | Cross-reference: W7212A1017 | OEM Part: HH63AW001
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — not an aftermarket substitute. OEM boards ship pre-configured with factory firmware and tolerance-matched sensor inputs, eliminating the calibration drift and compatibility risks common with third-party economizer boards.
• Install Difficulty: 3/5 — Requires disabling unit power at the disconnect and documenting all low-voltage wiring before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wiring diagram (available in unit service manual). Configuration of DCV setpoints may require a technician interface tool or jumper adjustment per the installation instructions included in the kit.
• Warranty: 1-year OEM Carrier factory warranty on parts. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model TCHC1850HE403396 commercial rooftop equipment. Also cross-references Honeywell W7212A1017. Verify your unit's existing board part number on the component label before ordering — our team is available to confirm fitment. Order today and restore full economizer and DCV functionality to your rooftop system.