Selco WU 330 Instrucciones De Uso página 14

Every six months, change the cooling liquid and wash out the
hoses and tank with water. Change the liquid in cases, where it
should boil, since it would loose its protective properties.
Filling or topping up of the tank with cooling
liquid must be performed with the power source
and WU assembled and positioned on a horizon-
tal surface.
Filling or topping up of the tank must be per-
formed with cooling liquid, code 18.91.001.
The equipment must not be used without cool-
ing liquid.
Do not use conductive cooling liquids.
Failure to carry out the above maintenance will invalidate all
warranties and exempt the manufacturer from all liability.
5 TROUBLESHOOTING
The repair or replacement of any parts in the
system must be carried out only by qualified
personnel.
The repair or replacement of any parts in the system by unau-
thorized personnel will invalidate the product warranty.
The system must not be modified in any way.
The manufacturer disclaims any responsibility if the user
does not follow these instructions.
No liquid flow in circuit
Cause No liquid in the tank.
Solution Refill.
Cause Air in cooling circuit.
Solution Connect the by-pass to the outlet connection
(blue colour) and bleed the hydraulic circuit allow-
ing the cooling fluid to emerge for a few seconds.
Cause Cooling circuit blocked or broken.
Solution Check the state of the connections (inside the unit)
of the hydraulic circuit.
Check the state of the torch's hydraulic circuit.
Check the condition of the coolant circuit in the cable
bundle.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Presence of the cooling unit alarm.
Solution Reset the alarm.
Connect a torch or the by-pass in the operating
modes requiring the cooling unit to be active.
Check the state of the connections (inside the unit)
of the hydraulic circuit.
Check the state of the torch's hydraulic circuit.
Contact the nearest service centre to have the sys-
tem repaired.
14
Cause Faulty pump.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Insufficient cooling capacity
Cause Faulty fan.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Faulty pump.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
6 TECHNICAL SPECIFICATIONS
Power supply voltage U1
Input current I1 max
Cooling power (25°C)
Type of exchanger
Nominal flow rate (QV)
Maximum flow rate (Qvmax)
Pump total head (Hmax)
Pump type
Maximum rpm
IP Protection rating
Tank capacity
Dimensions (lxdxh)
Weight
Manufacturing standards
WU 330
1x400 V
0.5 A
1.0 Kw
H2O - Air
2.3 l/min
4.6 l/min
35 m
Centrifugal
2900 rpm/min
IP23S
5.5 l
705x305x250 mm
15.0 Kg.
EN 60974-2/EN 60974-10