Installation and operating instructions Wilo-Para STG 39
en
6.2 Electrical connection
The electrical connection may only be carried out by a
qualified electrician.
CAUTION!
Insufficient heat dissipation and condensation water may
damage the control module and the glandless motor.
• Do not thermally insulate the glandless motor (2).
• Ensure all condensate drain openings (3) are kept free.
WARNING!
Risk of fatal injury from magnetic field!
Risk of fatal injury for people with medical implants due
to permanent magnets installed in the pump.
• The motor must never be removed.
DANGER!
Risk of fatal injury from electrical voltage!
Immediate risk of fatal injury if live components are touched.
• Before commencing work, switch off the power sup
-
ply and secure it from being switched on again.
• Never open the control module (5) and never remove
operating elements.
CAUTION!
Pulsed mains voltage can cause damage to electronic
components.
• Never supply the pump with phase angle control.
• For applications where it is not clear whether the
pump is operated with pulsed voltage, get the
control/system manufacturer to confirm that the
pump is operated with sinusoidal AC voltage.
• Switching the pump on/off via triacs/solid-state
relays must be examined on a case-by-case basis.
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