This part number refers to the compressor plug assembly

This genuine HVAC OEM part is the direct performance 103094-01 cross-reference for the legacy Lennox 18L89

Common indicators include visible melting or charring on the plug

the K3A542V is a direct replacement for previous models

The Modine 78641 functions as the brain of the unit

Resideo VCZZ6100 Replacement Cartridge 320734-701 This part number refers toThe 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