the D6997805S provides the exact air-to-gas ratio required for the venturi to operate within manufacturer specifications

this 40VA-rated model provides a stable secondary output of 24VAC

this replacement burner head ensures precise fuel-to-air ratios

preserving cooling capacity

if the system has overheated

York S1-028-15540-000 Condensate Hose 323080-701 the D6997805S provides the exactThe York S1 028 15540 000 Condensate Hose is a critical OEM HVAC replacement part engineered specifically for high efficiency condensing units and residential furnaces. As a veteran technician, you know that managing discharge is vital to preventing secondary damage from acidic condensate. This HVAC drain hose is constructed from heavy duty, moisture resistant polymers, ensuring it maintains structural integrity under the constant thermal cycling and