Daikin-McQuay 4009501 Circuit Board 320734-701 This HVAC replacement part is

This HVAC replacement part is essential for restoring system performance and improving diagnostic visibility in aging equipment

20" WC switch

As a versatile adjustable pressure control

Designed to operate on 120Vac power

System Protection: Effectively filters out micro-particulates up to 20 microns to protect sensitive TXV components

Daikin-McQuay 4009501 Circuit Board 320734-701 This HVAC replacement part isThe Daikin McQuay 4009501 Circuit Board is a critical OEM replacement component engineered for precise logic control in Daikin HVAC systems. As a primary printed circuit board (PCB), this unit serves as the communication hub, managing electrical signals between sensors, thermostats, and mechanical components to ensure stable system operation. Designed to match original factory specifications, it provides a direct fit solution for technicians looking