OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE401484

This is the genuine OEM Carrier Economizer Control Board Kit (part# HH63AW001), factory-specified for the Carrier TCHC1850HE401484 commercial rooftop unit. The economizer control board is the intelligence hub of your unit's free-cooling system — it continuously monitors indoor and outdoor air conditions, modulates the outdoor air damper, and manages demand-controlled ventilation (DCV) signals to maximize energy savings while maintaining proper indoor air quality. When this board fails, symptoms include a locked-open or locked-closed damper, loss of DCV/CO₂ sensor communication, fault codes on the unit controller, or the unit running full mechanical cooling when free-cooling should be available — all of which spike energy costs and compromise occupant comfort.

• Part Number: HH63AW001 | Cross-reference: W7212A1017 | Factory Authorized Carrier OEM replacement
• Specs: Input Voltage: 120V | Frequency: 60Hz | Dimensions: ~4" × 4" × 2" | Weight: 1 lb | All inputs Class 2 rated | Compatible with CO₂/DCV sensor inputs for demand-controlled ventilation
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — not an aftermarket approximation. OEM boards carry factory-programmed logic, exact terminal layouts, and tested communication protocols. Generic boards risk damper calibration errors, sensor incompatibility, and premature failure that void equipment warranties.
• Install Difficulty: 3/5 — Requires disconnecting 24V and 120V wiring harnesses, labeling all DCV sensor leads, and verifying damper actuator feedback after installation. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and access to the unit's wiring diagram. Always de-energize the unit at the disconnect before servicing. Recommend a qualified commercial HVAC technician for this replacement.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse in original Carrier packaging.

Compatibility: Designed for the Carrier TCHC1850HE401484 commercial rooftop unit with factory DCV economizer configuration. Also cross-references W7212A1017. Verify your existing board's part number on the unit data plate or control compartment label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions.