21
WILO SE 03/2013
English
9. Maintenance
All servicing should be performed by an
authorized service representative!
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be
excluded.
All electrical work must be performed after
power supplies have been switched off for both,
pump and X-Care, and secured against unautho-
rized switching.
WARNING! Risk of scalding!
In case of high water temperatures and high sys-
tem pressure close the isolating valves located in
front of and behind the pump. First, allow pump
to cool down.
• Helix pumps have been designed for low-main-
tenance.
• If needed, mechanical seal is easily replaceable
thanks to its cartridge seal design. Turn both
pump and X-Care off. Disconnect [E] connector
for dismantling. After cartridge seal replacement,
take care to connect [A] before pump start.
• Always keep the pump and X-Care perfectly
clean.
• If required, clean X-Care only with a wet rag.
WARNING!
Do not use alcohol, solvent or acid solution to
clean X-Care.
• Take care to maintain pump according to its
installation and operating instructions.
10. Faults, causes and remedies
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be
excluded.
All electrical work must be performed after
power supplies of both, pump and X-Care, have
been switched off and secured against unautho-
rized switching.
DANGER! Risk of injury or electrical shock haz-
ard!
Electrical connections of pump and X-Care are
totally independent: power supplies of both,
pump and X-Care, must be turned off before any
operations.
In particular, X-Care power on indicator [1] does
not mean that pump is also turned off.
WARNING! Risk of scalding!
In case of high water temperatures and high sys-
tem pressure close the isolating valves located in
front of and behind the pump. First, allow pump
to cool down.
• All defects mentioned below activate the
“defect” indicator and the dry-contact relay but
only if the “Defect post” parameter is set (see
§8.1).
NOTE: Both "Defect" indicators show dry-con-
tact relay status.
8.2 X-Care settings
• In case of customization, it is recommended to
set up X-Care before any pump starts.
• Turn X-Care on.
• X-Care settings is possible by using infrared
communication or CAN bus facilities.
8.2.1 Infrared communication
• Requirements:
PDA with one SDIO slot,
IR-module (available as accesories),
IR-module setup software (available from Wilo
web site).
• When communication between PDA and X-Care
is set, one click on
button displays configu-
ration settings menu.
8.2.2 CAN bus
• CAN interface is developped according to ISO
11898 standard and data transfer rate could
reach up to Mbit/s.
• On this basis, profiles have been developed for
several product ranges and allows a uniform use
of products. CiA 450 profile defines properties
for pumps. Wilo CAN bus interface is already
compliant with future product profile based on
DS CiA 301 communication protocol.
NOTE: Use of optocoupler is recommended when
distance between 2 CAN devices exceeds 100 m.
• Requirements :
CAN library (available from Wilo web site) ,
Optocoupleur if necessary.
• See "Configuration" paragraph of CAN library
documentation to access to the same parame-
ters than those available through infrared com-
munication.
8.3 System filling - Venting
CAUTION! Possible damage of the pump!
Never operate the pump dry.
The system must be filled before starting the
pump.
• Take care to prepare pump according to its
installation and operating instructions.
• Correct direction of rotation will be shown by
"Direction of rotation" indicator [2] lit with
GREEN light.
8.4 Starting the pump
• Take care to start pump according to its installa-
tion and operating instructions.
