Description Of Settings; Setting The Pressure Switch - salmson ALTI-AQUA Notice De Montage Et De Mise En Service

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8. COMMISSIONING
CAUTION! Risk of damage to the product!
The system cannot be allowed to run dry at any time.
Dry running destroys the mechanical shaft seals.
Before switching on the electrical power for the first time, make
sure the wiring is correct, especially the earthing.
CAUTION! Risk of damage to the product!
Tighten all terminals before commissioning the system!
8.1 Filling the diaphragm vessel
Before commissioning, check and correct the gas pressure on
the diaphragm pressure vessel(s) before the vessel is filled on
the water side. The gas pressure should be about 0.3 bar less
than the switch-on pressure of the pumps.
CAUTION! Risk of damage!
The maximum supply pressure of the vessel must not
exceed the maximum operating pressure.
8.2 Filling – bleeding
When connected to municipal supply network or with intake
from break tank
•Check the incoming water supply (is the break tank filled
enough / is the supply pressure from the municipal network
correct).
•Open the intake valve upstream from the system in order to fill
the system with water.
•Open the vent screws on the pumps (see Fig. 1 - No. 5) and
wait until the water flows out freely before closing them again.
•Hold the rocker switch (see Fig. 2 - No. 4) on "Manual" in order
to check the operation of the pump. If necessary, test the
pumps one after the other.
Suction operation from break tank
•Close the stop valve on the pressure side.
•Open the stop valve on the suction side.
•Remove the vent screws.
•Using a funnel, slowly fill the pumps and suction line com-
pletely.
•Filling is finished when water comes out and ventilation is com-
plete.
•Screw the vent screws back in firmly (see Fig. 1 - No. 5)
•Hold the rocker switch (see Fig. 2 - No. 4) on "Manual" in order
to check the operation of the pump. If necessary, test the
pumps one after the other.
8.3 Direction of rotation of the motors
The electrical connection of the pumps to the switchgear is
done at the factory. However, with the three-phase version,
the direction of rotation must be checked, as follows:
•Make sure that the pressure boosting system has been filled
with water.
•Set the rocker switch for the pumps (see Fig. 2 - No. 4) to "0".
•Set the main switch to On (1).
•Set the rocker switch for pump 1 to position "Manual". The
pump starts (the operation LED lights up on the switchgear);
now check the motor for the correct direction of rotation (see
operating instructions for the pump).
•Follow the same steps for pump 2.
•To change the direction of rotation, exchange two phases
with each other.
DANGER! Danger of death!
Before changing the phases, switch off the main switch
to isolate the system from the electricity supply.
•Then return the rocker switch for the pumps to the "0" position.

8.4 Description of settings

8.4.1 Setting the pressure switch

The switch is set by turning nut No. 1 for the upper switching
point (for deactivation of the pump) and nut No. 2 to set the
lower switching point and the pressure difference (for activa-
tion of the pump).
•Turning nut No. 1 clockwise increases the upper switching
point.
•Turning nut No. 2 clockwise reduces the lower switching point
(which makes the pressure difference greater).
The switch-on and switch-off pressure must be selected before
setting pressure switches PR1 and PR2 (use the charts in Fig. 8 if
necessary).
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