the K3A542V is a direct replacement for previous models

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

High Temperature Compatibility: Engineered to withstand the thermal stresses found in demanding hot water and steam applications

The Modine 78641 functions as the brain of the unit

allowing for seamless integration into building management systems (BMS)

Resideo VCZZ6100 Replacement Cartridge 320734-701 the K3A542V is a directThe 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