OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TCACCY50TM480019

This is a genuine OEM Carrier Economizer Control Board Kit (part# HH63AW001), the factory-specified replacement for the Carrier TCACCY50TM480019 commercial rooftop unit. The economizer control board acts as the decision-making hub for your unit's economizer system — continuously reading outdoor air enthalpy and CO₂/DCV sensor inputs to modulate the outdoor air damper and maximize free cooling while minimizing mechanical refrigeration run time. When this board fails, symptoms include economizer dampers stuck open or closed, loss of demand-controlled ventilation (DCV) function, fault codes related to economizer operation, or a noticeable spike in energy costs due to uncontrolled outside air intake.

• Specs: 120V | 60Hz | DCV (Demand-Controlled Ventilation) capable | Dimensions approx. 4" × 4" × 2" | Weight: 1 lb | Cross-reference: W7212A1017
• OEM vs Generic: This factory-authorized OEM board is pre-programmed and calibrated to Carrier RTU specifications. Generic or aftermarket economizer boards often require additional configuration and may lack full DCV compatibility, risking improper ventilation control and potential code violations.
• Install difficulty: 3/5 — Disconnect power at the disconnect box before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, smartphone/camera for wiring documentation. Label and photograph all harness connectors before removal. Commercial rooftop work should be performed by a licensed HVAC technician.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier TCACCY50TM480019 commercial packaged rooftop unit. Cross-references Honeywell W7212A1017. Always verify your existing board's part number and input/output configuration against your unit's wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.