6
Installation
Upon its arrival, check your BoosterpaQ system for ship-
ping damage and confirm that you have received the
correct system prior to installation.
Location
BoosterpaQ systems must be installed in a well-ventilated
area. When a BoosterpaQ is installed outdoors, it must
be protected from rain, cold, heat, and direct sunlight to
operate within the product humidity and temperature
limits. The BoosterpaQ should be placed with a 3-foot
clearance in front and on the two sides for ease of service.
Hydraulic installation
Arrows on the pump
base show the direc-
tion of flow of water
through the pump. The
pipes connected to the
BoosterpaQ must be of
adequate size. To avoid
resonance, expansion
joints may be connected
to the discharge and suc-
tion pipes (see drawing
at right).
The system pipes are
connected to the mani-
folds of the BoosterpaQ.
Either end of the mani-
folds can be used as long
as the pipe does not pass
in front of the control
panel (check building
codes). Apply approved
sealing compound to
the unused end of each
manifold and fit the
screw cap. For manifolds with flanges, blind flanges with
gaskets are included.
If the suction pressure periodically exceeds the discharge
pressure, installing a bypass check valve (see drawing
above) minimizes flow through the pumps when the sys-
tem shuts down.
If the discharge pressure could reach pressures above the
plumbing maximum rating due to VFD failure or other
system causes, a pressure relief device must be installed.
Another option is to install a pressure sustaining valve
to return discharged fluid back to the suction manifold.
Grundfos offers this option.
BoosterpaQ hardware should be checked for tightness
prior to startup to avoid leaks due to transportation vibra-
tion. When a BoosterpaQ is installed in a densely popu-
lated building or the first user on the line is close to the
BoosterpaQ, it is advisable to fit pipe hanger/supports on
the suction and discharge pipes to prevent vibration being
transmitted through the pipe work (see drawing at left
with pipe hanger/support).
The BoosterpaQ should be positioned on a flat, level, solid
surface; for example, a concrete floor or foundation. If the
BoosterpaQ is not fitted with vibration dampers, it must
be bolted to the floor or foundation. The pipes must be
fastened securely to ensure that they cannot move or be
twisted.
Expansion joints, pipe hangers and vibration dampers
shown in the illustration at left are not included with the
BoosterpaQ.
Install a diaphragm tank as specified in the “Technical
Information” section.
Electrical connection
The connection of the electrical supply, transmitters and
external monitoring equipment must be carried out by an
authorized electrician in accordance with the NEC, local
regulations and the BoosterpaQ wiring diagram.
Ensure that the Control 2000 and the pumps are suitable
for the electricity supply on which they will be used (see
Technical Data). Please read the wiring diagram carefully.
According to the NEC, if the motors cannot be seen from
the control panel, they must be fitted with a disconnect
switch.
Any BoosterpaQ that utilizes a variable frequency drive
(ME, MEH, MF, MFH, MES) should be connected to an
electrical supply that all phase lines are electrically
symmetrical with respect to ground. A “four wire wye”
electrical supply is recommended. If a variable frequency
drive is connected to a delta transformer, the drive may
not operate correctly and may not provide optimum per-
formance (excessive faults, erratic behavior, or complete
failure). Ask your power company or electrician to deter-
mine what type of electrical supply is present. Generator
supplied power must meet public utility power quality
standards.
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