Daikin-McQuay 300003004 Relay 321042-401 This HVAC replacement part is

This HVAC replacement part is essential for preventing heat exchanger damage and ensuring system integrity during high-thermal events

including the PGX3 and PDX3 series

this flapper stabilator valve is engineered to regulate combustion air and exhaust flow

Designed for a union nut connection

Daikin-McQuay 300003004 Relay 321042-401 This HVAC replacement part isThe Daikin McQuay 300003004 Relay is a specialized 24V reset relay enclosed in a durable protective housing, engineered for precise control in commercial HVAC systems. Designed to interface with low voltage control circuits, this component facilitates the manual or automatic resetting of system logic following a fault condition. Its enclosed design protects the internal electromagnetic coil and contacts from dust and debris, ensuring consistent