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Installation and operating instructions Wilo-SiClean Comfort
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7.5
Function and operation
DANGER! Risk of fatal injury!
Incorrect installation and improper electrical connections can
result in fatal injury. When working on an open switchgear, there is
risk of electric shock through contact with live parts.
• Have the electrical connections established by approved electri-
cians only, in compliance with the applicable regulations.
• Observe the accident prevention regulations!
NOTE
After connecting the switchgear to the supply voltage as well as after
every power failure, the controller returns back into the mode that
was set before power interruption.
7.5.1
Operating modes
In the automatic mode the control of the pump and the valves
depends on the operation settings. The number of flushing per day of
the respective month (menu 1.2.1.1, flushings/24h) determines the
remaining duration of pump running before the next flush.
The minutes (/day) or hours (/month) left until the next flushing are
indicated on the main screen.
If “External Off” and any alarms are inactive, the pump is always run-
ning except during a flushing phase.
At the beginning of the flushing process:
• The pump will switch off
• The drain valve opens. During the period specified in menu 1.2.7.1 the
valve stays open to flush out the water, after that time delay has
elapsed
• The valve closes according to the delay specified in menu 1.2.7.1
• The pump will start running again unless a leakage alarm occurs
If a leakage has been detected:
• (1) an alarm occurs
• (2) the safety valve closes and system waits until the time span spec-
ified in menu 1.2.7.2. The drain valve starts an “open/close cycle” in
order to remove the blocking point. In fact, the drain valve opens dur-
ing a certain duration (specified in menu 1.2.7.1) and closes then. The
safety valve stays closed during that unlock attempt.
• A manual reset is required in order to allow the next step.
• The safety valve reopens.
• Leakage detection:
• still active: Jump to the (1) and then (2) step.
• passive: The system goes back to its automatic mode and run.
NOTE
The leakage monitor is active while the pump is running.
External Off
The control system can be deactivated by an external NC contact. If
the pump runs in automatic mode, it will stop and the timer to the
next flush is interrupted.
Operating modes of pump and valves
In the menus 3.2.1.1, 3.2.3.1 and 3.2.4.1 the operation mode of the
pump and the valves can be selected (Hand, Off, Auto).
Logic of collective failure signal (SSM)
In menu 5.5.2.0 the logic of SSM can be selected between negative
logic (falling slope in case of a failure = “fall“) or positive logic (rising
slope in case of a failure = “raise“).
Function of collective run signal (SBM)
In menu 5.5.1.0 the function of SBM can be selected between „Ready“
(switchgear is ready to run) and „Run“ (at least one pump is running).
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