OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403360

This is a genuine OEM Carrier Factory Authorized Part — the HH63AW001 DCV Economizer Control Board Kit — factory-specified for the Carrier TCHC1850HE403360 commercial rooftop unit. The economizer control board is the intelligence hub of your unit's free-cooling system: it continuously monitors outdoor air conditions via CO₂ and/or enthalpy sensors, modulates the outdoor air damper, and enforces demand-controlled ventilation (DCV) strategies to maximize energy savings. When this board fails, you'll typically see economizer fault codes, a damper stuck fully open or fully closed, uncontrolled outside air infiltration spiking energy costs, or a complete lockout of the free-cooling cycle — all of which can result in comfort complaints and code-compliance issues in commercial environments.

• Specs: Input Voltage: 120V | Frequency: 60Hz | Cross-Reference: W7212A1017 | Dimensions: ~4" × 4" × 2" | Weight: 1 lb | All inputs Class 2 rated
• OEM vs Generic: This Factory Authorized Carrier OEM board is pre-configured and calibrated to the exact DCV logic required by the TCHC1850HE403360. Third-party boards may lack proper CO₂ sensor input mapping and damper actuator feedback loops, risking ASHRAE 62.1 ventilation compliance failures.
• Install difficulty: 3/5 — Requires disconnecting 24V control wiring, CO₂/enthalpy sensor leads, and actuator connections before swapping boards. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wiring labels. Photograph all wiring before disconnecting. Recommend licensed commercial HVAC technician for this repair.
• Warranty: 1-year OEM Carrier Factory Authorized Parts warranty. Ships same business day from our stocked warehouse.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier TCHC1850HE403360 commercial rooftop unit economizer system. Cross-references Honeywell W7212A1017. Verify your existing board's part number label before ordering — if you need fitment confirmation, our HVAC parts specialists are available to verify compatibility before you buy. Order now and receive same-day shipping on all in-stock parts.