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9.3
Checking the direction of rotation
9.4
Activation
9.5
Switching off
9.6
Operation
Installation and operating instructions • Wilo-VeroLine-IPL-Z, Wilo-VeroTwin-DPL-Z • Ed.01/2024-07
By briefly activating it, check whether the direction of rotation matches the arrow on the
motor (fan cover or flange). If the direction of rotation is incorrect, perform the following
steps:
•
swap 2 phases on the motor terminal board (e.g. phase L1 for phase L2).
•
The unit may only be switched on when the shut-off device on the discharge side is
closed! Only after full speed has been reached may the shut-off device be slowly
opened and be adjusted to the duty point.
The unit must run smoothly and free of vibration.
During the running-in period and normal operation of the pump, a small amount of leakage,
i.e. a few drops, is normal. A visual inspection is required from time to time. If there is clearly
detectable leakage, the gasket must be replaced.
DANGER
Danger of death due to lack of protective devices!
Due to missing protective devices of the terminal box or near the coup-
ling/motor, electric shock or contact with rotating parts can lead to life-
threatening injuries.
• Immediately after the conclusion of all work, all the provided safety
and protection equipment items must be properly installed and put
into operation!
•
Close the shut-off device in the discharge line.
NOTICE
If a non-return valve is installed in the discharge line, and there is coun-
terpressure, the shut-off device can remain open.
CAUTION
Risk of damage due to incorrect handling!
When switching off the pump, the shut-off device in the inlet pipe must
not be closed.
•
Switch off the motor and allow it to coast down completely. Ensure the coasting is
smooth.
•
For longer downtimes, close the shut-off device in the inlet pipe.
•
For longer periods of non-use and/or danger of freezing, drain the pump and secure it
against freezing.
•
After removing the pump, store it in a dry and dust-free place.
NOTICE
The pump must always run smoothly and vibration-free and must not be
operated in conditions other than those specified in the catalogue/data
sheet.
DANGER
Danger of death due to lack of protective devices!
Due to missing protective devices of the terminal box or near the coup-
ling/motor, electric shock or contact with rotating parts can lead to life-
threatening injuries.
• Immediately after the conclusion of all work, all the provided safety
and protection equipment items must be properly installed and put
into operation!
en
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