also known as the EK-165S

For a proper seal

this split sleeve coupling operates effectively across a temperature range of -30°F to +275°F

this specific spring is sized for the 81 and 210D series

Extended 30" Reach: Long lead length simplifies installation in larger commercial or residential furnace heat exchangers

Trane CNT1219 Temp Control also known as the EK-165SThe Trane CNT1219 is an OEM grade SPST N C Temp Control switch designed for high limit temperature monitoring in commercial and residential HVAC systems. Engineered as a normally closed (N C) safety device, it proactively safeguards equipment by opening the electrical circuit when the sensing environment reaches its fixed 170 degree Fahrenheit trip point. This Trane limit switch replacement is critical for preventing heat exchanger fatigue and