OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCHC1850HE401024

This is a genuine OEM Carrier Factory Authorized Part (HH63AW001), the factory-specified DCV Economizer Control Board Kit for the Carrier TCHC1850HE401024 commercial rooftop unit. The economizer control board serves as the command center for your unit's economizer system — continuously monitoring outdoor air conditions, CO₂ levels (in DCV-equipped systems), and enthalpy sensors to intelligently modulate the outdoor air damper. When this board fails, you may experience symptoms including a stuck-open or stuck-closed damper, erratic outdoor air modulation, CO₂ demand-controlled ventilation faults, loss of free-cooling capability, or fault codes related to the economizer circuit on the unit's control display.

• OEM Part Number: HH63AW001 | Cross-reference: W7212A1017 | Genuine Carrier Factory Authorized Parts (FAP)
• Specs: 120V | 60 Hz | Dimensions approx. 4″ × 4″ × 2″ | Weight: 1 lb | All inputs Class 2 rated | Designed for DCV (Demand Controlled Ventilation) economizer systems
• OEM vs Generic: This OEM board is pre-programmed and factory-calibrated for Carrier RTU economizer logic. Aftermarket boards may lack DCV firmware, causing improper damper sequencing, false fault codes, and potential code-compliance issues with ASHRAE 62.1 ventilation standards.
• Install Difficulty: 4/5 — Commercial rooftop board replacement requires shutting down the unit, safely isolating 120V supply, and carefully documenting all wiring connections before removal. Tools needed: screwdrivers (flathead and Phillips), needle-nose pliers, multimeter, and wiring labels. Recommend a qualified commercial HVAC technician for this repair.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier TCHC1850HE401024 commercial packaged rooftop unit. Also cross-references Honeywell W7212A1017. Verify your existing board's part number against HH63AW001 before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your unit back online fast.