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en - Original instructions
• Observe accident prevention regula-
tions in force.
• Use suitable equipment and protec-
tion.
• Always refer to the local and/or na-
tional regulations, legislation, and co-
des in force regarding the selection of
the installation site, plumbing, and
power connections.
4.1 Facility requirements
4.1.1 Pump location
DANGER:
Do not use this unit in environments that
may contain flammable/explosive or
chemically aggressive gases or powders.
Guidelines
Observe the following guidelines regarding the loca-
tion of the product:
• Make sure that no obstructions hinder the normal
flow of the cooling air that is delivered by the mo-
tor fan.
• Make sure that the installation area is protected
from any fluid leaks, or flooding.
• If possible, place the pump slightly higher than
the floor level.
• The ambient temperature must be between
-30°C (-22°F) and +50°C (+122°F) unless other-
wise specified in the data plate.
• The relative humidity of the ambient air must be
less than 50% at +40°C (+104°F).
Installation above liquid source (suction lift)
The theoretical maximum suction height of any
pump is 10.33 m. In practice, the following affect the
suction capacity of the pump:
• Temperature of the liquid
• Elevation above the sea level (in an open sys-
tem)
• System pressure (in a closed system)
• Resistance of the pipes
• Own intrinsic flow resistance of the pump
• Height differences
For more information about the performance, see .
NOTICE:
Do not exceed the pumps suction capacity as this
could cause cavitation and damage the pump.
4.1.2 Piping requirements
Precautions
CAUTION:
• Use pipes suited to the maximum
working pressure of the pump. Fail-
ure to do so can cause the system to
rupture, with the risk of injury.
• Make sure that all connections are
performed by qualified installation
3
fuses aM (motor starting), or magneto-thermal switch with curve C and Icn ≥ 4.5 kA or other equivalent device
4
Overload thermal relay with operation class 10 A + fuses aM (motor starting) or motor protection magneto-thermal switch
with operation class 10 A.
10
technicians and in compliance with
the regulations in force.
Piping checklist
• Pipes and valves must be correctly sized.
• Pipe work must not transmit any load or torque to
pump flanges.
For illustration that shows the piping requirements,
see
Figure 5
(page 172).
4.2 Electrical requirements
• The local regulations in force overrule these
specified requirements. In the case of fire fighting
systems (hydrants and/or sprinklers), check the
local regulations in force.
Electrical connection checklist
Check that the following requirements are met:
• The electrical leads are protected from high tem-
perature, vibrations, and collisions.
• The power supply line is provided with:
– A short-circuit protection device
– A high-sensitivity differential switch (30 mA)
[residual current device RCD] to provide more
protection against electric shock.
– A mains isolator switch with a contact gap of
at least 3 mm
The electrical control panel checklist
NOTICE:
The control panel must match the ratings of the elec-
tric pump. Improper combinations could fail to guar-
antee the protection of the motor.
Check that the following requirements are met:
• The control panel must protect the motor against
overload and short-circuit.
• Install the correct overload protection (thermal re-
lay or motor protector).
Pump Type
Single phase standard
electric pump ≤ 2.2 kW
Three-phase electric
4
pump
• The control panel must be equipped with a dry-
running protection system to which a pressure
switch, float switch, sensors, or other suitable de-
vice is connected.
Protection
– Built-in automatic
reset thermal-am-
perometric protec-
tion (motor protec-
tor)
– Short circuit protec-
tion (must be sup-
plied by the instal-
3
ler)
– Thermal protection
(must be supplied
by the installer)
– Short circuit protec-
tion (must be sup-
plied by the instal-
ler)
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