Field Controls 1170004 Switch R-134A It is ready for installation

It is ready for installation into compatible 3/4 HP units without the need for additional external software tools in the field

Optimized Thermal Isolation: Maintains the integrity of the heat exchanger assembly by preventing localized hot spots

typically at the 10 or 2 o'clock position

Manufactured to original equipment specifications for reliable installation

Integrated valve position indicator for accurate status monitoring

Field Controls 1170004 Switch R-134A It is ready for installationThe Field Controls 1170004 (FTS 4) is a critical manual reset thermal safety switch designed to protect gas fired furnaces, boilers, and water heaters from hazardous flue gas spillage. This SPST thermal switch monitors temperatures at the draft hood or barometric control, effectively de energizing the burner circuit if hot gases escape due to a blocked flue or inadequate chimney draft. Engineered for heavy duty applications, it features a 140F fixed