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3.3.1 Maximum Head
Operation with PFU 2000 RAM / PMU 2000 Settings:
This setting is only possible on service code level.
The maximum head H
is the head at maximum speed and
o
flow = 0. It influences the calculation of the speed settings during
switching and pump change processes (display 232).
Pump head = discharge pressure – pre-pressure.
If the pre-pressure is not measured, it is set to zero in the for-
mula.
The value must be set according to the H
nameplate.
The setting range is 0 to the maximum value of the measuring
range of the relevant analog input.
The default setting is the maximum value of the measuring range
of the relevant analog input.
Operation with PFU 2000 EPROM Settings:
The default setting is the higher value of:
•
setpoint max. + 10% of setpoint or
•
setpoint max. + 5% of transmitter measuring range.
3.3.2 Operating Hours
Operation with PFU 2000 RAM / PMU 2000 Settings:
The operating hours are counted for each pump when operating.
When a pump is replaced, the operating hours for the pump can
be changed (display 233).
3.3.3 Start Time
Operation with PFU 2000 RAM / PMU 2000 Settings:
This setting is only possible on service code level.
The "start time" is the time a pump needs to run up to maximum
speed after having been started. The value is set in the setting
menu.
This parameter is used to calculate the timing of speed settings
when a pump is stopped and during pump change.
The setting range is 0 to 100 secs. in steps of 0.1 sec.
The default setting is 1.0 sec.
Operation with PFU 2000 EPROM Settings:
The default setting is 1.0 sec.
Fig. 24
Start Time
Speed
1.
2.
1. Maximum speed.
2. Start time.
4. Installation
The installation and operation should be in accord-
ance with local regulations and accepted codes of
good practice.
20
stated on the pump
o
Time
4.1 Location
The booster sets Hydro 2000 S must be installed in a well venti-
lated room. Hydro 2000 S is not suitable for outdoor installation.
The booster set should be placed with a 1 metre clearance in
front and on the two sides.
Use a fork-lift truck to move the booster set. It is shown on the
booster set where it can be lifted.
4.2 Hydraulic Installation
Arrows on the pump base show the direction of flow of water
through the pump.
The pipes connected to the booster set must be of adequate size.
To avoid resonance, expansion joints should be fitted in the dis-
charge and suction pipes, see fig. 25.
The pipes are connected to the manifolds of the booster set.
Either end can be used. Apply sealing compound to the unused
end of the manifold and fit the screw cap. For manifolds with
flanges, a blind flange with gasket must be fitted.
The booster set should be tightened up prior to start-up.
If booster sets are installed in blocks of flats or the first consumer
on the line is close to the booster set, it is advisable to fit pipe
hangers on the suction and discharge pipes to prevent vibration
being transmitted through the pipework, see fig. 25.
The booster set should be positioned on a plane and solid sur-
face, e.g. a concrete floor or foundation. If the booster set is not
fitted with vibration dampers, it must be bolted to the floor or foun-
dation.
The pipes must be fastened to parts of the building to ensure that
they cannot move or be twisted.
Fig. 25
1
2
1. Expansion joint.
2. Pipe hanger.
Expansion joints, pipe hangers and vibration dampers shown in
fig. 25 are not included in the standard booster set.
4.3 Electrical Connection
The connection of electricity supply, transmitters and external
monitoring equipment must be carried out by an authorized elec-
trician in accordance with local regulations and the relevant wir-
ing diagram.
Make sure that the Control 2000 S and the pumps are suitable for
the electricity supply on which they will be used. Pay special at-
tention to "Important Notes" in the wiring diagram.
If the motors cannot be seen from the control box, they must be
fitted with a repair switch.
For further information, see section
11.4 Electrical Data.
2
1
2
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