Mueller AI15504 Relief Valve 318172-701 Bi-Directional Capability: Specifically designed for

Bi-Directional Capability: Specifically designed for heat pump applications

supporting both flush mount and surface mount configurations via a standard 1/8" NPT air connection

This Reznor gas heater conversion kit includes the required regulator spring kit and factory-spec burner orifices to transition your heating unit from liquid propane to natural gas

and fan speed sequences

The 8402-114BX is the manufacturer-specified direct replacement for the legacy S8402-114 and 8402-114 models

Mueller AI15504 Relief Valve 318172-701 Bi-Directional Capability: Specifically designed 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,