Industrial-Grade Thermal Protection: Engineered to withstand the high-temperature environment of the heat exchanger cabinet

ensuring the control board receives the necessary signal to proceed with the ignition sequence

meaning it breaks the circuit when the temperature reaches the setpoint

Precision Balance: Factory-aligned to prevent shaft oscillation and extend the lifespan of the motor assembly

monitors the venting system to ensure the combustion blower is moving sufficient air for safe operation before the ignition sequence begins

Carrier KHALS0401LLS Solenoid Valve Kit 321894-708 Industrial-Grade Thermal Protection: Engineered toThe Carrier KHALS0401LLS is a high performance liquid line solenoid valve kit engineered specifically for bi flow applications in R 410A Puron and R 22 heat pump systems. For veteran technicians, this kit is the standard solution for preventing refrigerant migration during the off cycle, which is critical in residential split systems where the indoor unit is located significantly above or below the outdoor section. Operating on a 24V 120V 50 60Hz