9.3. Shut-down procedure
To shut down the pressurisation unit, please follow the steps below:
1.Isolate the electrical power supply to the pressurisation unit
2.Isolate the mains water supply from the pressurisation unit with the isolation valve in the hose
3.Isolate the pressurisation unit from the system using the isolation valve in the hose
If it is anticipated that the unit will be out of commission for more than 24 hours, it is
advisable to disconnect the hoses from the unit.
9.4. Restarting
After long periods of downtime
If this downtime was planned or scheduled, turn OFF the control unit and close off the isolating
valve to the system and the isolating valve to the top-up line. After that, decompress and then
drain the water area. We recommend you carry out maintenance before restarting (see chapter
11 Maintenance).
Use the commissioning records for restarting and check especially for changes that can lead to
other operating conditions of the expansion automat (e.g. system pressure).
If the power supply has failed the unit restarts automatically.
Please ensure that when the system cools down or warms up, the minimum or
maximum system pressure does not exceed or fall below the permitted operating
pressure.
9.5. Resetting
You can only perform a reset in the main screen described in chapter 9.2 Normal operation. To
reset the alarm or perform a Factory Reset you must first exit the menu.
To reset the Alarm press and hold the button. A countdown is displayed. “Alarm reset” is
displayed.
To perform a Factory Reset press and hold all buttons ( + + ) until the display
shows “Factory reset”. This will take around 30 seconds.
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