Bard HVAC 8402-165BX Limit Switch 321042-401 this 3/4" NPT mount valve

this 3/4" NPT mount valve is the industry-standard solution for restoring reliable domestic hot water production

It is highly recommended to use a new collector box gasket during installation to ensure a gas-tight seal at the heat exchanger panel

and 0A2—to ensure the HVAC control electronics maintain original system parameters

Does the system reset automatically after a power outage

Bard HVAC 8402-165BX Limit Switch 321042-401 this 3/4" NPT mount valveThe Bard HVAC 8402 165BX Limit Switch is a critical high temperature safety component engineered for Bard wall mount HVAC units and furnaces. This L250 3F Auto Limit Switch is designed to monitor internal plenum temperatures, automatically opening the electrical circuit to shut down heating elements or burners if temperatures exceed the 250F threshold. Its primary function is to prevent heat exchanger damage and ensure safe system operation during