Use of Fire Extinguisher:

1. Turn the valve counterclockwise with a wrench to open it; the drain valve will automatically close when the water pressure reaches 0.1MPa. Rotate clockwise to close the valve; the drain valve will open automatically to drain out the accumulated water.

2. Dual-purpose water in/out spout. Seal both KWS interfaces when using the suction pipe connector; seal the suction pipe connector when using the KWS interfaces.