Can I drill out my existing orifices instead of using the kit

the York S1-022-08912-000 provides the responsive thermal feedback required to maintain high system efficiency and consistent discharge air temperatures

extending the life of the internal insulation and bearings

The unit operates within a 5-10 PSI range

060 lbs/hr

Raypak 004881F Gas Valve Refrigerant Can I drill out myThe Raypak 004881F Gas Valve is an essential genuine OEM replacement part engineered for high output 2 stage natural gas heating systems. As a critical component for Raypak boiler repair and water heater maintenance, this valve features a 1 inch inlet outlet and is pre set for a 4 inch water column to ensure precise fuel regulation and manifold pressure. Operating on a standard 24V transformer circuit, the 004881F is built to handle the rigors of both