23
23
ENGLISH
• For self-priming pumps only: The li-
quid column above the check valve on
the delivery pipeline prevents self-pri-
ming of the pump = drain the delivery
pipeline. Check that check valve does
not retain liquid in the delivery pipe-
line. Repeat the start-up procedure.
Pump performance is reduced
• Pipelines obstructed = check pipelines
• Pump is not primed correctly = repeat
the "pump priming" procedure
• For self-priming pumps only: the in-
ternal valve has not closed = gradually
close a valve until there is a visible in-
crease in pressure or flow. Then open
the valve gradually until the required
flow rate is reached.
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 self-priming 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.
Содержание EVO-MULTIMAX 340 KIT
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Страница 167: ...167 RCD 30 mA Evo Multimax ACS 5 C 50 C 40 C 8bar 0 8MPa 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...
Страница 168: ...168 70dB LpA Evo Multimax 340 Logic Safe Evo Mul timax 550 Logic Safe Evo Multimax 840 Evo Multimax 340 Kit A1 50 40 C...
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Страница 172: ...172 1 11 5 1 11 PN 5 1 2 3 4 LOGIC SAFE Evo Multimax 340 Logic Safe Evo Multi max 550 Logic Safe Evo Multimax LOGIC Safe...
Страница 174: ...174 LOGIC SAFE...
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Страница 190: ...190 RCD 30 A Evo Multimax AC 5 C 50 C 40 C 8 0 8 M a 5 1 2 3 4 5...
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Страница 197: ...197 Failure Restart Failure Restart Failu re Restart RESTART...
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Страница 216: ...PENTAIR INTERNATIONAL S a r l Avenue de Sevelin 18 1004 Lausanne Switzerland...