E Service / Repair

DELTABOOSTER_GB01
Function
From the situation on page 3.
The water tank is now almost full. At the moment the level switch (B5) closes, the light
will turn on and the filling stops. A user has just ended his consumption.
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Unstable
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Stable
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L
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3
2
1
3
2
1
A
A
A
A
A
A
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6
5
4
6
5
4
25.......50.........100...120.....150..175...200
Bar
C
Operation, User No. 2 stops
At the moment a user stops, the pressure will increase by approx. 10 bar and the unused
water, which in this case is the water volume of one pump, will now be lead back to the
water tank through the overflow valve (V1) and the flow valve (B4).
Via a timer (B4) will give signal to stop one pump (P2) which will stop after approx. 15
sec. The stable operation will continue with one user.
When the last user stops the same will happen as described above, and the last pump
will stop. Now the machine is standing with pressure (working pressure) ready for operation.
At the moment a user starts a consumption, the pressure will drop to the level of the
pressure switch (B2) which is approx. 25 bar as standard. That means that the lights (B1)
and (B2) goes out before the start signal to a pump is released, and one pump will start.
If it takes more than approx. 3 sec. to build up the pressure to (B1) level, another pump
will be started. This situation often appears in big pipelines or if there is air in the system.
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L
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H
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4