Bard HVAC 8408-039BX Stat 320735-701 Rapid Response: SPST configuration ensures

Rapid Response: SPST configuration ensures immediate interruption of the 24V or line voltage control loop

The epoxy-encapsulated housing provides robust moisture and vibration resistance

PF 1501) and Knight series units including AWN151PM

depending on local particulate levels

This often indicates the switch isn't closing or is stuck in the open position

Bard HVAC 8408-039BX Stat 320735-701 Rapid Response: SPST configuration ensuresThe Bard HVAC 8408 039BX Stat is a high precision L250 50F discharge line thermostat engineered for heavy duty commercial and wall mount equipment. As the direct replacement for 8408 039, this OEM component is critical for monitoring compressor discharge temperatures to prevent high head pressure events and thermal overload. Designed with a specific L250 50F setpoint, the switch opens at 250F and automatically resets at 200F (50F differential),