Assembly; Setup; Vessel Connection; Top-Up Connection - Wilo Sinum MP M-2-50 Notice De Montage Et De Mise En Service

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6. Assembly

6.1. Setup

• Fit the automatic vent (supplied separately).
Caution: If the screw cap is not opened, exces-
sive pressure may build up in the vessel. The gas
discharge will be restricted.
• Remove the transport seal by the volume sensor
once the basic vessel has been set up in the pro-
posed place and no further positional changes are
necessary. Avoid impact on the sensor and make
sure the sensor is on a surface which does not
impair the function of the sensor pressure-pad.
• Installation of the weight-capacity sensor and the
adjustable feet.
1000 Ltr
1000 Ltr
• Using the foot-height adjuster, adjust the vessel
until it is vertical. Use two vertical magnetic spirit
levels.
• E nsure that no external additional forces can be
exerted on the basic vessel (e.g. tools laid on the
vessel, things leaning on the sides).
• D o not fix the basic vessel to the ground on which
it is erected (do not use any sort of fastening
which can adversely affect the vessel, e.g. sinking
the feet into concrete or lime, welding of the
vessel or its feet, clamps and ties on the body of
the structure or appurtenances).
• Place the control module, the basic vessel and the
auxiliary vessel at the same height.
Note: If the vessels are at different levels:
the volume sensor reading will not be the actual
volume in the vessel. As a consequence, error
18
Fig. FM.028.V01.15
Fig. FM.030.V01.15
Fig. FM.031.V01.15
Fig. FM.032.V01.15
messages, regardless of the actual (sufficient)
water level in the vessel, may impair the system's
ability to maintain pressure.
Note: If the vessels and unit are at different
levels:
a dangerous pressure build-up at the connection
between the unit and the vessel could lead to un-
acceptably low volumetric flow or loss of pressure
increase. Make sure that the set-up location of
the basic vessel and the unit are governed by the
connection assembly.

6.2. Vessel connection

The vessel connection is produced as an electric
or hydraulic connection to the pump module. For
the installation diagram and example installation
see appendix 1. Please observe the following
points prior to filling and commissioning of the
pressure expansion vessels:
Fig. FM.033.V01.15
• Install the connection assembly between the
vessel and the control module.
Caution: Ensure that the connection between the
pump module and the basic vessel is made with
the supplied flexible pressure hoses (connection
assembly).
Take note of the labels 'pump' and 'valve' on the
connections and connect up the appropriate
connection from the pump module (valve) to the
pump (valve) on the vessel connection.
Do not cross these connections and, if neces-
sary, mount the vessel connection flange so as
to enable parallel pipe fitting. Use the flat seals
supplied.
• Connect the signal line via the quick-release
connection to the capacity sensor. Screw this
connection entirely into the connector (protec-
tion class IP67).
Fig. FM.034.V01.15
• Open the lockshield valve on the connection
assembly between the vessel (basic vessel, inter-
mediate vessel) and control module.

6.3. Top-up connection

The top-up connection should be connected
to the control unit. Assured top-up requires an
average set feed pressure of
approx. 4-6 bar (max. 8 bar). High feed pressures
may require devices to prevent water hammer
(pressure reducing valve).
Non-return valve
Fig. FM.035.V01.15
Appendix 1 shows the installation diagram and
example installation.
WILO SE 08/2018