It is installed in the Water Heater and control the amount of the gas combustion in detail. The flood temperature of the Gas Water Heater is kept constantly, and the no stage combustion control becomes possible.

The remote control operation from a place away becomes possible by the current

control, too.

Shut-off Valve rated voltage: ～AC220V all wave rectification and

Proportional Control Valve: ～DC260mA

The control of the gas mass flow and the passage opening and shutting performance are possessed.