Lennox 79L66 Manifold L99H008 whereas ZS models are typically

whereas ZS models are typically utilized for medium-temperature refrigeration and high-temp air conditioning applications

effectively cutting the burner circuit if the heat exchanger exceeds safe operating temperatures

Check the parts list on your unit’s cabinet door for part number 286801R

While technically possible with proper wiring

Lennox 79L66 Manifold L99H008 whereas ZS models are typicallyThe Lennox 79L66 6 Port Manifold is a critical OEM replacement part designed for high performance fluid and refrigerant distribution. Engineered with corrosion resistant aluminum, this manifold ensures long term structural integrity in demanding light commercial and residential environments. It features a robust 6 port configuration that provides balanced flow regulation, making it an essential component for technicians addressing HVAC system pressure