BWT PERMAQ Compact CRU, Installation And Operating Manual

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4.3. Electric installation
Note! The electric connections must be made in compliance with local regulations. The elec-
tric connection to the BWT PERMAQ Compact CRU must be as follows:
Voltage : 230 V/50 Hz
Fuse: 10A
Max. power consumption: 1.0 kW
Colour code of power cable:
Blue wire: N
Brown wire: L
Yellow/green wire: PE
5. START AND OPERATION OF BWT PERMAQ Compact CRU
Note! Check before start-up that all water and electrical connections are made as de-
scribed in the previous sections and that they are in compliance with local regulations.
The transport pump pressure switch and pressure tank are preset in our factory and do not
need to be adjusted.
1: Make sure that the overflow branch is connected to the drain and there is concen-
trate flow (max. 500l/h) from BWT RO plant in to the BWT PERMAQ Compact CRU
2: Power ON the BWT PERMAQ Compact CRU and check that the transport pump mo-
tor is running.
Note! The transport pump cannot be started until the tank of the unit
has been filled up.
3: Wait for the tank to be completely filled. Check that level switch stops the transport
pump automatically when the tank is full. NOTE: Do not touch the level switch.
4: Create a large consumption of water for 5 min (the TP-pump needs to be bled of air)
5: Check that the transport pump starts automatically.
6: Check that the pump supplies water and pressure. If the pump does not supply water
and pressure, see Chapter 8: Trouble-shooting.
7: When the transport pump is found to be working properly, consumption of concen-
trate shall be stopped.
8: Wait for the transport pump to stop automatically.
Note! (on BWT RO reservoir and BWT CRU units): The transport pump doesn’t stop
until 10-30 sec. after the consumption has stopped due to the built-in time delay in
the control box.
9: The BWT PERMAQ Compact CRU has now been commissioned and is ready for use.