GF Hycleen Automation System, User Manual

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4 Working with the master
4.5 Automatic Maintenance Process
Once a week, the Maintenance application is actuated.
It ensures long-term reliable operation of the valves during hydraulic alignment. A
basic problem of hydraulic regulator valves is the fact that during operation they are
never shut fully or only during maintenance measures. There are also lines that only
have to be regulated very rarely. This leads to the danger of sediments accumulating
and obstructing the function of the valves. The automatic maintenance process pre-
vents this problem by moving the valve to the positions 0 and 100% opening degree.
Potential sedimentation is also avoided in this way. In addition, the sequential opening
of the individual circulation lines at 100% ensures repeated high flow velocity (cleaning
effect).
Process sequence
All circulation regulators decrease the flow to the leakage rate.
Each valve opens in sequence for 30 seconds and is rinsed, then the valve
assumes the preset position again.
Define the desired day of the week (1) and starting time (2) for the automatic
maintenance process. The starting time must be selected so that the process
takes place at a time when no warm water is withdrawn, i.e. typically at night.
Save the changes using the confirm key (3).
The play key (4) initiates an immediate maintenance process.
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