OEM Carrier DCV Economizer Control Board Kit HH63AW001 for Model TFACCY50HJ484261

This genuine OEM Carrier Economizer Control Board Kit (part #HH63AW001) is the factory-specified replacement for the Carrier TFACCY50HJ484261 commercial packaged rooftop unit. The economizer control board is the intelligent hub of the unit's demand-controlled ventilation (DCV) system — it continuously monitors outdoor air conditions and dynamically modulates the outdoor air damper to maximize free cooling, maintain indoor air quality compliance, and minimize mechanical cooling runtime. When this board fails, you may experience stuck damper positions, loss of DCV control, economizer fault codes, diminished indoor air quality, or significant increases in energy consumption as the system defaults to full mechanical cooling.

• Specs: 120V input | 60Hz | Board dimensions: 4" × 4" × 2" | Weight: 1 lb | OEM Part #HH63AW001 | Cross-reference: W7212A1017 | Sold as complete kit
• OEM vs Generic: This is a genuine Carrier factory-authorized part engineered to exact DCV tolerances for the TFACCY50HJ484261 platform. Aftermarket substitutes may lack proper sensor calibration ranges and DCV logic firmware, risking non-compliance with ventilation codes and continued fault conditions.
• Install difficulty: 3/5 — Requires shutting down and locking out the RTU before access. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, multimeter, and wiring diagram (available in unit service manual). Photograph all wiring connections before disconnection. Recommended for qualified HVAC/R technicians familiar with commercial rooftop controls.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.

Compatibility: Engineered for the Carrier TFACCY50HJ484261 commercial packaged rooftop unit. Cross-references with Honeywell W7212A1017 economizer controller. Always verify the part number on your existing board's label before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions.