Installation; Installation Example; Electrical Connection - Pentair PVM Serie Instrucciones De Funcionamiento

EN
ORIGINAL INSTRUCTION
CHAPTER 5

INSTALLATION

Always refer to the local or national regulations and codes relating to the selection of the installation site, the water and power con-
nections, etc.
If installed for use with drinking water, clean the pump prior to installation - also clean if left unused for prolonged periods of time.
For drinking water, all materials used upstream and downstream of the pump must also be suitable for contact with drinking water for
human consumption
5.1 POSITION
Pumps should be installed in a protected environment – not exposed to weather. Make sure that there are no obstructions to prevent
proper motor cooling.
5.2 ANCHORING
The pump must be secured to a solid foundation by bolts through the holes in the flange or base plate.
The illustration shows the bolt location and the pipe connections.

5.3 INSTALLATION EXAMPLE

When positioning and installing the pump, follow the installation examples below in order to avoid damaging the pump.
• Pipe support: Support piping
system properly to avoid stresses on
connections.
• On-off valves: Install on-off valves for
easy access- before the pump intake
and after the pump discharge.
• Use flexible piping on both inlet and
outlet sides of the pump to reduce
vibration and transmission of noise.
• Check valves will prevent return flow of
pumped liquid when pump is stopped,
reducing the danger of pump damage.
• Control Panel: Use high quality
components. Make sure that the
panel conforms to local standards and
regulations.
CHAPTER 6

ELECTRICAL CONNECTION

• All electrical connection should be in
accordance with the local regulations
and made by a qualified electrician.
• Make sure that the supply voltages and
frequencies, and phase are suitable for
the motor used.
• Before proceeding, make sure that all
the connections are grounded and well
insulated.
6
• Do not place elbows next to the pump
inlet and discharge.
• If pump needs to be operated with on-
off valve closed, install a by-pass line to
avoid damaging the pumping system.
• If it is necessary to increase the
diameter of the suction pipe, place an
eccentric reducer between the check
valve and the flexible pipe section.
• Using elbows will increase the flow
resistance. Long radius bends will
result in less flow resistance.
• The piping must have a level or positive
gradient to prevent the formation of
air pockets.
• Overload protection should be
provided.
• To connect, proceed as shown on the
inside of the terminal board cover.
• The terminal box can be turned to four
positions.
• Check the direction of rotation (Three-
phase motor only).
• The diameter of the drop pipe must be
bigger than the diameter of the pump' s
suction port.
• Use a foot valve in case of negative
suction head.
• Size pump for correct head.
• Place the intake of the suction pipe so
that the footvalve is always submerged
to prevent entry of air.
• Install a compound gauge at the pump
suction and a pressure gauge at the
pump discharge.
• Make sure that the controls are
properly grounded.
• To avoid the possibility of dry running,
we strongly recommend installing dry
running protection.