Water Valve Manifold Assembly - Zamboni FastICE DK - 11000 Operating Manual

Water Valve Manifold Assembly

The following is an illustration of the water control valve assembly, which is located under the operator's
feet, under the brake master cylinder:
This subassembly contains the water control valves, the water pressure sensor, the water temperature
sensor, and an air purge valve.
The air purge valve should also be used to completely drain the valve manifold assembly in cases where the
machine will be stored in freezing conditions.
The water valve subassembly features a flange connection that allows for ease of servicing the inlet filter
element in the event that it become clogged with debris.
Regarding the water control valves, it is worth noting that the control signals sent to the water control
valves have a distinct operating characteristic:
• For the sake of energy conservation, the water valves are controlled using a method known as a
"digital hot-shot". In this control method, the current required to open the valve is applied for ½ of 1
second, and after this 1 second period, the current is reduced to an amount that is sufficient to keep
the valve open. This method of controlling the valves reduces the overall energy requirements of the
system.
Zamboni FastICE ® Operating Manual
DK - 11000
Operating Manual
DRAIN / PURGE VALVE
Page 29 of 44