salmson NEXIS-V 2 Instalacion Y Puesta En Servicio página 16

ENGLISH
10. F ULTS, C USES ND REMEDIES
W RNING! Electrical shock hazard!
Dangers caused by electrical energy must be excluded.
All electrical work must be performed after the electrical supply has
been switched off and secured against unauthorized switching.
W RNING! Risk of scalding!
At high water temperatures and system pressure close isolat-
ing valves before and after the pump. First, allow pump to
cool down.
F ULTS
10.1 PUMP F ILS TO a) No current:
OPER TE
b) The thermistor tripping device has
tripped out, cutting off power:
10.2 PUMP RUNS BUT a) Wrong direction of rotation:
DELIVERS TOO
b) Parts of the pump are obstructed by
LITTLE forei¬gn bodies:
c) ir in suction pipe:
d) Suction pipe too narrow:
e) The valve is not open far enough:
10.3 PUMP DELIVERS
a) ir in pump:
UNEVENLY
10.4 PUMP VIBR TES a) Foreign bodies in pump:
OR IS NOISY
b) Pump not properly attached to
ground:
c) Bearing damaged:
10.5 MOTOR OVE-
a)
RHE TS. ITS PRO-
b) mbient temperature too high:
TECTION TRIPS
OUT
10.6 MECH NIC L a) Mechanical seal is damaged:
SE L IS LE KING
11. SP RE P RTS
All spare parts must be ordered through SALMSON Customer
Services.
In order to avoid any mistakes, please specify the name plate data
for orders.
C USES
phase is open-circuit:
a) Check the fuses, the wiring, and the connectors.
b) Eliminate any cause of overloading of the motor.
a) Check the direction of rotation of the motor and correct it if necessary.
b) Check and clean the pipe
c) Make the suction pipe airtight.
d) Install a larger suction pipe.
e) Open the valve properly.
a) Evacuate the air in the pump; check that the suction pipe is airtight. If
required, start the pump 20-30s – open the air bleed screw in order to
move air away – close the air bleed screw and repeat it several times
until no more air is going out of the pump.
a) Remove the foreign bodies.
b) Retighten the screws.
c) Call SALMSON Customer Service.
a) Check the fuses, the wiring, and the connectors.
b) Provide cooling.
a) Replace the mechanical seal
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REMEDIES