Installation And Electrical Connection; Installation Site; Hydraulic Connection - salmson ALTI-AQUA Notice De Montage Et De Mise En Service

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7. INSTALLATION AND ELECTRICAL CONNECTION

7.1 Installation site

Install the pressure boosting system in an easily accessible, nor-
mally ventilated room protected against freezing. Make sure
that the pressure boosting system can be transported through
the door of the room.
Provide enough space for maintenance work. The system
should be freely accessible from at least two sides.
7.2 Installation
Position the system on a smooth, flat bearing surface or on a
concrete pedestal which is anchored to the bearing surface
below. Provide insulation material (made of cork or reinforced
rubber) between the pedestal and the bearing surface to pre-
vent the transmission of flow noise.

7.3 Hydraulic connection

CAUTION! Risk of damage to the product!
Comply with the requirements of the water supply com-
pany and the applicable local regulations.
•The suction/pressure pipes can be connected either on the
right or the left; seal off the unused openings with threaded
caps.
•Fit valves in the pipes so that the system can be isolated from
the mains if necessary.
•The system must always have at least one diaphragm pressure
vessel with a capacity of 18 or 24 l installed on the pressure
pipe (see Fig. 1); if its capacity is greater, the vessel should be
positioned next to the system.
•The existing pipes on site must be connected to the system
without any tension whatsoever.
We recommend using expansion joints or flexible connection
hoses for this purpose, in order to prevent tension in rigid con-
nections and the transmission of vibrations from the system to
the building.
Direct connection to municipal water supply network
Check whether the system installed at the site is able to with-
stand the maximum pressure of the pump at zero flow plus the
pressure of the municipal water supply network. If this is not the
case, install a pressure reducer at the output of the pressure
boosting system.
We strongly recommend fitting a pressure reducer and a reg-
ulating valve in the inlet pipe of the pressure boosting system in
order to prevent pressure fluctuations at the system's inlet.
Intake from break tank
Check whether the system installed at the site is able to with-
stand the maximum pressure of the pump at zero flow plus the
pressure of the break tank. If this is not the case, install a pres-
sure reducer at the output of the pressure boosting system.
Suction operation from break tank
Make sure that the friction loss in the suction line is not greater
than the suction capacity of the pumps (check the NPSH). We
recommend installing a foot valve with strainer with a pipe
having a diameter which is at least the nominal diameter of
the suction line or one size larger.
7.4 Electrical connection
DANGER! Danger of death!
Electrical connection must be carried out by an electri-
cian authorised by the local electricity supply com-
pany and in accordance with the applicable local
regulations.
When carrying out electrical connection, the installation and
operating instructions and the wiring diagrams provided must
be followed. The following general instructions apply:
•The current type and the mains voltage must comply with the
details on the rating plate and terminal diagram of the switch-
gear.
•For safety reasons, the pressure boosting system must be prop-
erly earthed (meaning earthed in accordance with the local
regulations and conditions); the terminals provided for this pur-
pose are marked accordingly (see also the terminal diagram).
Connecting cable
The electrical connecting cable must be properly dimen-
sioned according to the total power of the pressure boosting
system (see rating plate).
Do not connect the switchgear to any voltage other than that
specified in the instructions (see 5.2 Technical data).
NOTE: There is a wiring diagram with detailed informa-
tion provided in the switchgear and in Fig. 9a / 9b.
CAUTION! Risk of damage to the product!
Do not forget to connect the earth terminal!
Dry-running protection
An On-Off input (250 V 2 A) (Fig. 5, No.1 and 2) is provided to
protect the pressure boosting system from low water; a pres-
sure switch (normally open contact) or float switch needs to be
connected to this input for this purpose.
CAUTION! Risk of damage to the product!
Do not apply any additional external voltage to the ter-
minals!
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