Spare Parts - Wilo CO-HELIX-V 4 Instrucciones De Instalación Y Funcionamiento

NO DELIVERY PRESSURE
RANDOM OPERATING, STARTING
FREQUENCY TOO HIGH
TRIPPING FREQUENCY OF DRY RUNNING
SAFETY TOO HIGH
OPERATING AUTOMATISM DEVICE
DEFECTIVE
DELIVERY CHECK VALVE NOT TIGHT
CONVERTER FAULT
THE BOOSTER DON'T STOP OR START

11. Spare parts

All spare parts must be ordered through WILO
Customer Services.
In order to avoid returns and incorrect orders,
please specify the name plate data for all orders.
Subject to technical alterations!
WILO SE 01/2012
Flow higher than booster capabilities.
One or two pumps are no more primed.
Public water pressure lower than the
minimum pressure planned.
A pump is obstructed by particles.
Voltage of the motors too low.
Pressure transmitter defective.
Installation capacity too low.
No air inside the tank or under inflation. Pressurize the tank or replace the bladder.
Setting of dry running pressure switch
too high .
Drop of the public water supply pressure
when starting the pumps.
Control box or cabinet defective.
Wires disconnected.
Transmitter defective.
Valve diaphragm or ring destroyed.
The pump converter displays a fault
indication.
The shut off valve (Fig. 5, pos. 16) is
closed.
Plan to replace the booster by a more
adequate one (do not forget to contact
us in any case).
Check that the suction strainer does not
let air in or the tank filling point is too
close from the strainer.
Contact the public water supply company
or replace the booster. Contact us.
Have the pump dismantled and cleaned.
Check the voltage on motor terminals.
Check the setting: transmitter not stable,
replace it if necessary.
Add a tank.
Set the pressure switch correctly.
Set the dry running pressure switch to
the minimum value. If it recurs, the pub-
lic water mains is inadequate ; check the
pressure with the pressure gauge when
starting the pumps or contact the public
water mains service.
See starting instruction of the control
box or cabinet.
Check all connections to the terminal
block of the control box.
Check the contacts, change the transmit-
ter concerned if necessary.
Change the valves.
See starting instruction of the pump.
Open the shut off valve (pos.16).
English
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