this specific model (R374-02C) is the regulator only

with a maximum working pressure rating of 355 psig (with some configurations tested up to 680 PSI)

Can the spark gap be adjusted on this model

Energy Efficiency: Advanced ECM technology reduces electrical consumption compared to standard PSC motors

SPST normally closed switch is engineered to open the circuit at a 190-degree F fixed temperature

Daikin-McQuay 300003004 Relay 322838-754 this specific model (R374-02C) 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