Wilo Helix EXCEL 1004-2/25/V/KS Notice De Montage Et De Mise En Service page 63

Access lock
The "Access lock" can be used to block all
adjustments to the pump.
Proceed as follows:
• Place DIP switch 2 in the ON position.
The menu <7.0.0.0> will appear.
• Turn the rotary knob to activate or deactivate
the lock. The current status of the lock is
represented by the following symbols
Lock activated: The parameters
are locked and access to the
menus is authorised in read-on-
ly mode.
Lock deactivated: The parame-
ters can be changed and access
to the menus to make adjust-
ments is authorised.
• Place DIP switch 2 in the OFF position. The status
setting will reappear.
9. Maintenance
All maintenance must be performed by an
authorised service representative only!
WARNING! Risk of electric shock!
Danger from electrical current must be
eliminated.
Ensure that the pump's power supply is switched
off and secured against unauthorised reactiva-
tion before performing any work on the electric
system.
WARNING! Risk of burns!
In case of high water temperatures and high sys-
tem pressures, close the guard valves upstream
and downstream of the pump. First, allow pump
to cool down.
- No special maintenance required during oper-
ation. Nevertheless, a regular check is recom-
mended every 15,000
- The cartridge mechanical seal can be
easily replaced on some models thanks to its
design. Insert its adjusting wedge in its housing
(see Fig. 6) once the mechanical seal is correctly
positioned.
- Always keep the pump perfectly clean.
- Pumps that are not being used during periods of
frost should be drained to avoid damage:
Close the guard valves, open the drain/priming
plug completely and the drain cock.
- Service life: 10 years depending on the oper-
ating conditions and whether all requirements
described in this operation manual have been
met.
Installation and operating instructions –
:
hours.
Helix EXCEL 2­4­6­10­16
DANGER ! Risk of death!
The rotor inside the motor is subjected to a per-
manent magnetic field and represents a severe
danger for the persons with a pacemaker. The
disregard gives death or serious injury.
• Don't open the motor!
• Do the dismantling / reassembly of the rotor in
purposes of repair only by the after-sales ser-
vice!
English
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