Disassembly And Disposal - Pentair NOCCHI MULTI EVO Manual De Instrucciones

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  • ESPAÑOL, página 57
Pump performance is unstable
•   Pump suction pressure too low or
cavitation = check the pump inlet
conditions
•   Suction pipe is partially obstructed
with impurities = clean the suction
pipe
•   Leak from suction pipe = repair or
replace suction pipe
•   air in suction pipe = bleed the suc­
tion pipe, repeat the "pump priming"
instructions
•   +For self­priming pumps only: The
differential pressure inside the pump
is too low = gradually close a valve
until delivery pressure stabilizes and
the noise level is reduced
The pump rotates in the opposite direc-
tion when shut down
•   Foot valve or check valve defective or
blocked in the open position = remove
and clean or replace the valves
•   Leak from suction pipe = remove and
repair suction pipe
DISASSEmBLy AND
DISPOSAL
Before any intervention on the
pump, disconnect the electrical
mains. Ensure that the electrical
power supply cannot be restored inadver­
tently.
•   Disconnect the pump electrically from
the system according to safety stan­
dards
•   Open the tap nearest to the pump to
decrease the system's pressure
•   Before disassembly, close the shut­
off valves on the delivery side, and if
present also close the shutoff valve on
the suction side.
Note the position of the filler
hole, which is also used as a
bleed point. Ensure that the liq­
uid on outlet cannot cause damage or
physical injury.
•   Loosen the filler cap to reduce the
pressure of the liquid remaining be­
tween the two valves
•   Remove the drain cap from the pump
body to completely empty the pump
This product or any part of the latter must
be disposed of in accordance with lo­
cal standards using the public or private
waste collection authorities as required.
ENGLISH
23 23

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