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

it typically requires a small pressure differential to function correctly

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

You must verify that the original wiring and thermal requirements match these specific SPDT parameters before installation

This kit is designed to return the unit to factory physical specifications

Carrier KHALS0401LLS Solenoid Valve Kit 321894-708 ensuring the control board receivesThe 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