5-inch diameter are spec-matched to maintain factory CFM standards

While calibrated for a 20 psig main air supply

this board is frequently used in AVY24B3XH21A and 2HE04505458 models

this specific control is designed to manage the logic for variable speed motor outputs and tiered electric heating stages

Lennox 79L63 Manifold L99H008 5-inch diameter are spec-matched toThe Lennox 79L63 12 Port Manifold (OEM part 65282700) is a critical component for high capacity HVAC regional zoning and refrigerant distribution. Engineered for precision flow management, this 12 port gas manifold allows technicians to transition a single line into twelve independent outlets, facilitating the simultaneous service of multiple coils or gas appliances. This HVAC replacement part is typically utilized in residential and commercial