this valve provides a 1

dry control air to prevent component failure

On the secondary side

this step-down transformer provides the stable low-voltage power necessary for thermostats

ASCO 8040H7 Solenoid Valve Els PW 17895 this valve provides a 1The ASCO 8040H7 is a specialized 2 way normally closed solenoid valve engineered specifically for low pressure fuel gas service. Designed for reliability in commercial and industrial combustion systems, this valve features a 1 4" NPT connection and an aluminum body that balances durability with weight efficiency. Operating on 120Vac, the 8040H7 provides a 1. 1 Cv flow coefficient, optimized for the 0 15 PSI pressure range. It utilizes NBR (Nitrile)