Lennox 47K19 Defrost Sensor Maximum Close-Off: Includes heavy-duty linkage

Maximum Close-Off: Includes heavy-duty linkage springs designed to maintain tight shut-off even in high-pressure steam or water systems

providing a secure

What is the difference between the CS3AH16A24 and the CS3AN16A24

For technicians performing routine maintenance or troubleshooting Reznor gas-fired unit heaters

For veteran technicians and building automation contractors

Lennox 47K19 Defrost Sensor Maximum Close-Off: Includes heavy-duty linkageThe Lennox 47K19 Defrost Sensor is a critical OEM replacement part designed for high performance heat pump maintenance. Engineered for residential and commercial HVAC applications, this defrost tube thermostat monitors the temperature of the outdoor evaporator coil to prevent excessive ice accumulation. The 47K19 features a precise tube mount design that ensures accurate thermal feedback, initiating the defrost cycle by closing at 32 F and terminating