Cleaning sponge balls, The Helios cycle is fully automatic and controlled by a programmable controller, as described below: Between cycles, the sponge balls are stored in the Collector and all valves are closed. At programmed intervals, the Controller commands the injection valves to open and pump to start, and the balls are injected into the heat exchanger inlet line.

Cleaning sponge balls, The Helios cycle is fully automatic and controlled by a programmable controller, as described below: Between cycles, the sponge balls are stored in the Collector and all valves are closed. At programmed intervals, the Controller commands the injection valves to open and pump to start, and the balls are injected into the heat exchanger inlet line.