Bard HVAC 8402-145BX Limit Switch 321894-709 This boiler pressure relief valve

This boiler pressure relief valve utilizes a silicone seat to prevent leakage and "simmering" near set pressure

the S1-4101400 is an essential truck-stock item for restoring high-efficiency heating and cooling performance

while factory-set for natural gas at 3

Key Benefits Specifically engineered for 2-stage ignition systems to optimize fuel consumption and heat output

Measuring 8

Bard HVAC 8402-145BX Limit Switch 321894-709 This boiler pressure relief valveThe Bard 8402 145BX Limit Switch is a critical safety component designed for high temperature protection in commercial HVAC systems. This Green A R limit switch features an L230 30 temperature rating, meaning it opens the circuit at 230F and closes once the temperature drops by a 30F differential. As a direct replacement for Bard 8402 145, the 8402 145BX ensures seamless compatibility with wall mount air conditioners and heat pumps without the need