Hydraulic Connection; Priming - Pentair NOCCHI SSCX Serie Manual

CHAPTER 3
INSTALLATION
DANGER
The installation operations must be performed by expert, qualified personnel.
Use specific guards and equipment as per safety standards
Fully comply with safety and accident prevention standards in force.
DANGER - ELECTRIC SHOCK RISK
Warns that the failure to follow the directions given may cause electric shock.

3.1 HYDRAULIC CONNECTION

The system can be used with a direct connection to the aqueduct or suction from a first tank.
DANGER
For connection to the aqueduct, pay full attention to local standards in force.
Check the sum of the intake pressure and the maximum pressure of the motor pump do not exceed the maximum
values allowed by the system.
• SSCX series electropumps are not
self-priming. It is advisable to install
it under the level of the water
• If the electropump is to be installed
above the water level then a suction
pipe should be used with a diameter
equal to that of the suction duct for
electropump
• If the height between the pump axis
and the minimum basin level is over
4 meters use a tube with a larger
diameter
• The suction line should be perfectly
airtight

3.2 PRIMING

DANGER
Never start the machine if it is not completely filled with water.
All manuals and user guides at all-guides.com
• No elbows and/or slopes should be
present to prevent the formation
of air locks that could affect the
electropump efficiency
• A standing valve with filter should be
fitted at about half a metre below the
fluid that has to be pumped on one
end of the line
• Load losses can be reduced using
delivery piping with a diameter
equivalent or greater than the
electropump mouth
• It is advisable to install a check valve
directly on the delivery line to prevent
the electropump being damaged by
"water hammer"
• A cut-off valve should also be
installed downstream from the check
valve, to facilitate servicing operations
• Piping should be fitted so that
vibrations, when existing, tension and
weight do not affect the pump
• Piping should be routed along
the shortest and straighter track,
avoiding an excessive number of
bends
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