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

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 connec-
tions.

5.3 Installation example

When positioning and installing the pump, follow the instal-
lation examples below in order to avoid damaging the pump.
1. Pipe support: Support piping system properly to avoid
stresses on connections.
2. On-off valves: Install on-off valves for easy access- before
the pump intake and after the pump discharge.
3. Use flexible piping on both inlet and outlet sides of the
pump to reduce vibration and transmission of noise.
4. Check valves will prevent return flow of pumped liquid
when pump is stopped, reducing the danger of pump da-
mage.
5. Control Panel: Use high quality components. Make sure
that the panel conforms to local standards and regulations.
6. Do not place elbows next to the pump inlet and discharge.
7. If pump needs to be operated with on-off valve closed, ins-
tall a by-pass line to avoid damaging the pumping system.
8. 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.
9. Using elbows will increase the flow resistance. Long radi-
us bends will result in less flow resistance.
10. The piping must have a level or positive gradient to pre-
vent the formation of air pockets.
11. The diameter of the drop pipe must be bigger than the
diameter of the pump's suction port.
12. Use a foot valve in case of negative suction head.
13. Size pump for correct head.
14. Place the intake of the suction pipe so that the footvalve is
always submerged to prevent entry of air.
15. Install a compound gauge at the pump suction and a
pressure gauge at the pump discharge.

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.
- Overload protection should be provided.
- To connect, proceed as shown on the inside of the termi-
nal board cover.
- The terminal box can be turned to four positions.
- Check the direction of rotation (Three-phase motor only).
- Make sure that the controls are properly grounded.
- To avoid the possibility of dry running, we strongly recom-
mend installing dry running protection.
7. START-UP
The pump and suction pipe should be filled with the liquid to
be pumped before start-up to prevent dry running at start-up.
WARNING: Dry running can damage the pump bearing and
shaft seal.
7.1 Operation
- Start the pump and check the direction of rotation of the
motor (Three –Phase motors).
- Start the pump, keeping the on-off valve of the dischar-
ge side of the pump closed. Then, open the on- off valve
slowly. The pump must run smoothly and noiselessly. If
not, then it may be necessary re-prime the pump.
- Check the current drawn by the motor. If necessary, ad-
just the setting of the thermal relay.
- Any air pockets trapped inside the pump may be released
by adjusting the air screw.
WARNING: If the pump is installed in a location where it is
subject to freezing when not in operation, then the pump and
the pipe system should be drained to prevent damage from
freezing.
ENGLISH
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