OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE401483

This is a genuine OEM Carrier Factory Authorized Part — the DCV Economizer Control Board Kit (part# HH63AW001) — engineered as the direct replacement for commercial rooftop units including the Carrier TCHC1850HE401483. The economizer control board acts as the brain of the economizer system, continuously monitoring outdoor air conditions via CO₂ and enthalpy sensors and modulating the outdoor air damper to maximize free cooling and maintain indoor air quality (IAQ). When this board fails, you may experience symptoms such as damper stuck open or closed, erratic economizer cycling, fault codes on the unit controller, excessive energy consumption, or complete loss of demand-controlled ventilation (DCV) function.

• Specs: 120V | 60Hz | DCV Demand-Controlled Ventilation logic | Dimensions approx. 4.7" × 3.2" | Weight: 1 lb | Cross-reference: W7212A1017
• OEM vs Generic: This factory-authorized OEM board carries pre-loaded Carrier firmware and calibrated sensor thresholds. Aftermarket boards often require manual recalibration and may not support full DCV logic, risking code compliance failures on commercial installations.
• Install difficulty: 3/5 — Requires disconnecting 24V control wiring, CO₂/enthalpy sensor leads, and damper actuator connections. Tools needed: insulated screwdrivers, needle-nose pliers, multimeter, wiring diagram. Always de-energize unit at disconnect before servicing. Recommend a qualified commercial HVAC technician for installation.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Engineered for the Carrier TCHC1850HE401483 commercial rooftop unit. Also cross-references Honeywell W7212A1017. Verify your unit's control board part number on the component label inside the economizer compartment before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — contact us today and get this part on its way to you fast.