Specifically designed for the Armstrong 813

common causes include blocked vent pipes

This two-way control valve features a forged brass body and plated brass trim

Aerated Non-Linting Design: Minimizes debris buildup to prevent nuisance lockouts and maintain a clean pilot flame

ensuring the burner circuit is interrupted if internal temperatures exceed safe operating parameters

Parker 77340 Coil Els PW 17895 Specifically designed for the ArmstrongThe Parker 77340 Solenoid Coil is an industrial grade 480V N C coil engineered for high demand HVACR and hydronic applications. Designed as a direct replacement part, this G23MM coil features a normally closed configuration, ensuring fail safe operation in general purpose valve systems. With 9 watts of power consumption and a 12 VA holding rating, it provides stable electromagnetic force to maintain valve positioning under continuous duty. The 30 VA