Daikin-McQuay 4009501 Circuit Board 320734-701 Designed to operate on 120Vac

Designed to operate on 120Vac power

20" WC switch

technicians should verify the model number against the data plate to ensure compatibility with Armor and Shield boilers

Can I use a standard 16x16x1 residential filter as a substitute

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

Daikin-McQuay 4009501 Circuit Board 320734-701 Designed to operate on 120VacThe 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