Description
The Field Controls 46086400 Safety Switch MV/24V GSK-3 is a thermal safety component used in gas-fired heating equipment to monitor flue gas spillage conditions. It is installed in the vent or draft area where it detects excessive heat caused by blocked flues, draft, or venting issues in HVAC systems. When unsafe conditions occur, it opens the electrical circuit to shut down the burner and requires manual reset before operation can resume. It is commonly used in residential and light commercial boiler and furnace system as part of the safety control circuit to help prevent hazardous operation.
