Lennox 57W64 Coil 321894-709 This 24-pack bulk configuration is

This 24-pack bulk configuration is the standard for facility managers and HVAC contractors performing full-scale teardowns or routine seasonal heat exchanger maintenance across multiple units

or foot-style mounting

This SPNO (Single Pole Normally Open) switch is factory-calibrated to a -

corrosion-resistant steel

External Integration: Includes terminals for remote indoor/outdoor sensors and signal inputs for more complex automation requirements

Lennox 57W64 Coil 321894-709 This 24-pack bulk configuration isThe Lennox 57W64 Secondary Heat Exchanger Coil serves as a critical replacement component for high efficiency condensing gas furnaces within the Lennox G61MPV and G61V series. This stainless steel condensing coil is engineered to extract latent heat from combustion gases, maximizing the AFUE rating of the HVAC system. As a Lennox OEM replacement part, it ensures precise fitment and structural integrity within the heat exchanger assembly. Technicians