The Carrier HK02SA445 is a critical OEM high-pressure safety switch designed for precise refrigerant circuit monitoring in residential and commercial condensing units

preventing exhaust leakage and ensuring high-efficiency performance

while the high-grade rubber grommet housing compensates for minor mounting misalignments

the K3A542V is a direct replacement for previous models

this heater is engineered for both 06D and 06E series semi-hermetic models

Resideo VCZZ6100 Replacement Cartridge 320734-701 The Carrier HK02SA445 is aThe Resideo VCZZ6100 Replacement Cartridge is a critical component for maintaining or restoring the performance of 3 way VC series valves. Engineered for hydronic control systems, this cartridge features a silver spring and is designed specifically for linear flow characteristics. It is fully compatible with 2 position actuators as well as fail safe proportional actuators, ensuring precise modulation in both heating and cooling applications. The