Electrical Connections - salmson HYDROBAT HPBS Serie Installation Et Mise En Service

ENGLISH
If not, connect a pressure reducer on the booster outlet.
We strongly recommend to install a pressure
reducer-regulator on the water supply pipe to
ATTENTION !
avoid all variations in the module inlet pressure.
If the module is suction-connected to a tank, the losses of head
must not exceed the suction capacity of the pumps.
The use of a check-valve strainer, with a pipe as large as or larger
than the nominal suction diameter, is recommended.
The installaton must always have a bladder tank.

5.4.Electrical connections

The electrical connections and tests must be made by
a licensed electrician and comply with applicable local
standards.
The control box of the booster cannot be connected to a
voltage other than the one for which it was ordered.
All booster electrical control units are connected to the control box.
- Use a cable with 4 conductors (3 phases + earth) to connect
three-phase 230 V or three-phase 400 V line power to the
terminals (RST) of the disconnecting switch (diagrams inside control
box).
DO NOT FORGET TO CONNECT THE EARTH
Float switch (version «B»)
The float switch, delivered separately, must be installed on the tank
and connected to terminals 1 and 2 of the control box by a two
conductor cable.
Remove the covers from the terminal blocks to check the electrical
connections of the motors (see FIG.3).
6. STARTING UP
6.1 Pressurising the tanks
- Pressurising of tanks to a pressure 0.3 bar less than the pump
starting pressure (Pf).
Maximum pressurisation:
Tank: 24L 16 bar = 5 bars*
*Safety valve mandatory.
6.2.Filling, degassing
- Check the water supply (tank full enough or town supply working).
- Open the bleed of the pumps and wait for water to flow out
steadily before closing.
Never operate the pump dry, even brefly.
ATTENTION !
6.3.Adjustments
Check of direction of rotation
- Set the pump switches to «OF».
- Close the disconnecting switch. The power indicator should light.
- Open the door of the control box and set the dry-running timer
(RME) to zero (0). You should hear a click.
- Set the switch of pump 1 to «Manual»; the pump should start
(indicator on control box lit); check that the motor turns the right
way.
- Repeat this step for pump 2.
- If a motor turns the wrong way, interchange two phase wires on its
terminal block.
- After this operation, set the switches of the pumps back to «Off».
Adjustment of automatic operation pressure switch (see FIG. 2)
With the front cover removed:
- Unscrew screw 1, and then screw in screw 3 in order to set pointers
2 and 4 to the highest value on the graduated scale to adjust the
pressure switch differential to its minimum.
- Set the reference pressure corresponding to the pump
engagement pressure, i.e.:
• Geometrical building height.
• Safety guard (0.3 bar).
• Module differential (0.6/0.8 bar).
• Difference (PF-Pf).
- Warning Pf must be lower than max pressure of pump (Q=0)
- Screw in screw (item 1) with graduation (item 2)
- For the pump engagement setting, unscrew screw (item 3) with
graduation (item 4).
Dry-running pressure switch (version»V»)
Pre-set to 1 bar at the plant.
Adjustment if necessary:
- Remove the cover.
- Screw the yellow difference screw all the way in, without locking,
then back off a quarter-turn.
- Remove the locking pin from the red disc.
- Fully unscrew the red disc.
- Set the dry-running pressure to the desired value.
Generaly: 0.3 bar for pump stopping
1.2 bar for restarting.
- Slowly screw the red disc back in untill a click is heard, the red dry-
running light on the control box goes on.
- Refit the locking pin and the cover.
Float switch (version «B»)
Adjust the float so as always to have at least 40 cm reserve water
abobe the inlet and outlet ports of the module, to overcome the
resistance of the check-valve strainer.
To check the connection, operate the float switch by hand to light
the dry-running indicator on the control panel.
Recommanded timer settings
1 - RMET timer (relay associated with dry-running pressure switch)
This timer provides a safety delay before the pumps are restarted.
- Set the timer to 180 seconds.
2 - RT1 timer (changeover relay)
This timer stages the starting of the pumps.
- Set in the plant to 1 second (do not change).
3 - RM timer (hold relay)
This timer is used to extend the operating time of the pump.
- Set the timer to 180 seconds.
This setting serves to limit the number of times the pumps are started.
4 - Temporisation RPT (Flow switch relay)
This timer is used to fileter flow switch durinfg start of pumpoperating
time of the pump.
- Set the timer to 10 seconds.
This setting serves to start the pumps with no flow when low pressure.
Timer settings:
• RMET 10 to 300s
• RT1 0,1 to 3s
• RM 10 to 300s
• RPT 10 to 300s
6.4.Commissioning
Note: The maximum service pressure of the installation is equal to the
no-flow pressure of the pumps, possibly plus the town water pressure
at the booster inlet.
Set the pump switches on the control box to «Auto». Booster
operation is then controlled automatically by the pressure switches
and the timers.
7. MAINTENANCE
• The booster needs no special servicing in operation.
• For pumps, refer to the specific handbook supplied together with
the module.
• Periodically check the tank inflation.
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