KSB moviBOOST Vt, Manual

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moviBOOST Vt
5 Installation at site
5.1 Readiness for operation
The owner or the owner’s representative must report the system’s
readiness for operation to the responsible authorities (normally
either the water company or the Trade Inspection Office). Prior
to commissioning, the installation contractor must demonstrate
conclusively that the installation requirements have been
complied with.
The power supply line must be installed / connected by a duly
authorised company.
5.2 Installation and location
The moviBOOST must be located either in the technical equipment
room or in a well-ventilated, frost-free, lockable room used for no
other purpose. No harmful gases are allowed to enter the place
of installation. An adequately sized drain connection (leading to
a sewer or equivalent) must be provided.
The unit is designed for a maximum ambient temperature of 0
0
C
to +40
0
C at a relative humidity of 50%.
moviBOOST units should not be installed next to sleeping or
living quarters.
Thanks to the anti-vibration mounts, the moviBOOST Vt unit is
adequately insulated to prevent transmission of solid-borne noise.
5.3 Piping
All piping must be installed without transmitting any stresses or
strains. The use of length-limited expansion joints is advisable
(see Accessories).
The formation of air pockets must be avoided. For suction lift
operation, the suction side piping must be laid with a continuously
rising slope.
5.4 Foundation
The package unit is designed for installation on a level concrete
floor. Its anti-vibration pads provide adequate insulation against
solid-borne noise.
5.5 Location
Prior to installing the unit, remove the packaging.
Connect the unit’s inlet and discharge pressure lines with the
corresponding distribution lines.
In order to avoid transmission of piping forces onto the system
and transmission of solid-borne noise, we recommend installing
length-limited expansion joints.
The unit must be accessible to allow maintenance and repair
work.
5.6 Installing a pressure reducer
A length of approximately 600 mm must be provided on the inlet
pressure side to accommodate a pressure reducer, if necessary.
A pressure reducer must be installed if the inlet pressure
fluctuation is so high that the unit must be stopped or if
the total system pressure (inlet pressure plus shut-off
head) exceeds the design pressure.
The maximum pump discharge pressure at zero flow point is
reached in manual mode.
For the pressure reducer to function properly, there must be a
minimum pressure gradient of 5 m. The pressure downstream of
the pressure reducer (downstream pressure) is the basic
parameter for defining the pump head.
Example :
The inlet pressure fluctuates between 4 and 8 bar. A pressure
reducer is needed upstream of the unit on the inlet pressure side.
Min. inlet pressure (H
vor
) = 4 bar
Minimum pressure gradient = 0.5 bar
Downstream pressure = 3.5 bar
5.7 Location and installation of unpressurised
inlet tanks
5.7.1 Location
Inlet tanks may be installed in the same location as the pressure
boosting unit. Installation and location are governed by the rules
applicable to the pressure boosting unit (see 5.2).
5.7.2 Installation
The closed PE inlet tank (under atmospheric pressure) available
as an accessory must be installed as described in the installation
instructions supplied with the tank.
Mechanical and electrical installation of the tank must be
completed prior to commissioning of the unit.
Clean the tank before filling it.
5.8 Valves and fittings
All other valves and fittings in the service pipes, e.g. gate valves,
water meters and non-return valves must be sized in accordance
with the data provided by the responsible water company.
5.9 Noise characteristics
moviBOOST Vt systems are available with different pump models
in variable numbers.
Therefore, the total sound pressure level in dB(A) needs to be
calculated.
For the noise level of the individual pumps refer to the pumps
Operating Instructions or to the Type Series Booklet
moviBOOST.
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