Installation; Foundation/Bearing Surface; Hydraulic Connection And Pipes; Hygiene (Trinkwv 2001) - Wilo SiBoost-Smart-2 Helix V605 Notice De Montage Et De Mise En Service

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• The installation surface must be horizontal and
flat. A slight adjustment in height at the vibration
absorber may be necessary to achieve stabilisa-
tion on the base frame. If this is necessary, slacken
the lock nuts and screw the respective the vibra-
tion absorber out a little. Then retighten the lock
nuts.
• The system is designed for a maximum ambient
temperature of +0 °C to 40 °C with a relative
atmospheric humidity of 50 %.
• Installation and operation in the vicinity of living
rooms and bedrooms is not recommended.
• To avoid the transmission of structure-borne
noise and to ensure a stress-free connection to
upstream and downstream pipes, expansion joints
(Fig. 9 - B) with extension limiters or flexible con-
nection lines (Fig. 10 – B) should be used.

7.2 Installation

7.2.1 Foundation/bearing surface

The pressure boosting system is designed for
installation on a flat concrete floor. The base
frame is mounted on height-adjustable vibration
absorbers to prevent structure-borne noise.
NOTE:
For transport reasons, the vibration absorbers may
be supplied not fitted to the equipment. Before
installing the pressure boosting system, check
that all the vibration absorbers are fitted and
locked by threaded nuts. (See also Fig. 9)
Please note:
If the customer also wants to secure the installa-
tion to the floor, suitable measures must be taken
to avoid structure-borne noise transmission.

7.2.2 Hydraulic connection and pipes

When connecting to the public potable water
mains, the requirements of the local water supply
company must be met.
The installation must not be connected until all
the welding and soldering work and the necessary
flushing and, if necessary, disinfecting of the pipe
system and the pressure boosting system installa-
tion has been done (see 7.2.3).
The customer's pipes must be installed free from
stresses. Expansion joints with extension limiters
or flexible connection lines are recommended for
this purpose in order to avoid stresses on the pipe
connections and to minimise the transmission of
system vibrations to the building pipework. In
order to prevent the transmission of structure-
borne noise to the building, do not secure the pipe
clamps to the pressure boosting system pipes (see
Fig. 9 for example; 10 - C).
The connection is made either on the right or left
of the system, depending on the site conditions. It
may be necessary to move blind flanges or
threaded caps that are already fitted.
38
The flow resistance of the suction line must be
kept as low as possible (i.e. short pipe, few elbows
and sufficiently large check valves), otherwise the
protection against low water level may suffer
severe pressure losses in the event of high volume
flows. (Observe NPSH of the pump, avoid pressure
loss and cavitation).
NOTE!
Where systems are fitted with casings it is recom-
mended that these are removed before connect-
ing the system and are refitted after all installation
and set-up work has been completed (see Fig.11a
and 11b).

7.2.3 Hygiene (TrinkwV 2001)

The pressure boosting system supplied represents
current technology and in particular satisfies
DIN1988. It was checked at the factory to make
sure it functions perfectly. Please remember that
when used in the drinking water sector, the com-
plete drinking water supply system has to be
handed over to the operator in a perfect state of
hygiene.
Also observe the corresponding specifications in
DIN 1988 Part 2 section 11.2 and the comments
on the DIN. TwVO § 5. para 4 requires that this also
includes microbiological requirements, flushing if
necessary and also disinfecting in some circum-
stances. The limit values to be met are stated in
TwVO § 5.
WARNING! Contaminated potable water is a
health hazard!
Flushing the pipes and the system reduces the
risk of affecting the quality of the potable
water!
The water must be completely replaced after a
long period of system standstill.
For the simple flushing of the system, we recom-
mend the installation of a T-piece on the end
pressure side of the pressure boosting system (if
there is a diaphragm pressure vessel on the pres-
sure side, immediately downstream of it)
upstream of the next shut-off device. Its branch,
provided with a shut-off device, drains into the
waste water system during the flushing process
and has to be dimensioned according to the max-
imum volume flow of an individual pump (see Fig.
7 and 8, item 28). If it is not possible to achieve
free drainage, the requirements in DIN 1988 T5
must be observed when connecting a hose, for
example.
7.2.4 Dry-running protection/protection against low
water level (accessory)
Fitting dry-running protection:
• Direct connection to the public water mains:
Screw the protection against low water level
(WMS) into the socket provided on the suction
manifold pipe and seal (if retrofitting) and make
the electrical connection in the control device
according to the installation and operating
instructions and the control unit wiring diagram
(Fig. 6a and 6b)
WILO SE 04/2013