Mueller AI15504 Relief Valve 321894-709 This model is configured for

This model is configured for Counter-Clockwise (CCW) rotation when viewed from the lead end

or visible debris buildup and fin deformation that causes the HVAC blower motor to draw high amperage

With color-coded wire leads and spade connectors

preventing refrigerant loss and moisture ingress

Ease of Installation: Solid copper sweat connections allow for straightforward brazing into existing liquid lines

Mueller AI15504 Relief Valve 321894-709 This model is configured forThe Mueller AI15504 Relief Valve is a veteran grade SafetyMaster pressure relief valve designed for mission critical overpressure protection in commercial refrigeration and HVAC systems. Engineered for high side application on liquid receivers, this straight through 425 PSI PRV features a 1 2 inch NPTFE inlet and a 5 8 inch flare outlet connection. The brass body construction, paired with a stainless steel spring and a resilient neoprene seat disc,