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Note: If on a double pump both the individual pumps are in
operation at the same time, the pre-selected speeds must be
identical for both pumps.
9 Maintenance
DANGER! Risk of fatal injury!
A fatal shock may occur when working on electrical equip-
ment.
• The pump should be electrically isolated and secured against
unauthorised switch-on during any maintenance or repair
work.
• Any damage to the connection cable should always be recti-
fied by a qualified electrician only.
After successful maintenance and repair work, install and con-
nect the pump according to the "Installation and electrical con-
nection" chapter. Switch on the pump according to the
"Commissioning" chapter.
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WILO SE 03/2015
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