Switching Off; Operation - Wilo CronoLine-IL 250 Série Notice De Montage Et De Mise En Service

8.1.1 Switching on

8.1.2 Switching off

8.2

Operation

Installation and operating instructions Wilo-CronoLine IL 250...
• The unit may only be switched on when the check valve on the pres-
sure side is closed. Only after full speed has been reached may this be
slowly opened and be adjusted to the dutypoint.
• The unit must run smoothly and free of vibration.
• The mechanical seal ensures that a seal will not leak and requires no
special setting. Should there be a small leak at the beginning, it will
stop when the initial break-in phase of the seal is over.
Immediately after the conclusion of all work, all the provided safety
and protection equipment items have to be properly installed and put
into operation.
DANGER! Danger of death!
Failure to install safety devices on the terminal box or near the
coupling can cause electrical shock or contact with rotating parts,
potentially resulting in life-threatening injuries.
• Immediately after maintenance, all previously removed safety
devices, such as terminal box covers or coupling covers, must be
reinstalled.
• Close the check valve in the pressure pipe.
NOTE:
In case a non-return valve is installed in the pressure pipe, the check
valve can remain open insofar as a counter pressure is present.
CAUTION! Risk of damage to property!
Danger of damage due to incorrect handling.
• When switching off the pump, the check valve in the inlet pipe may
not be closed.
• Switch off the motor and allow it to coast down completely. Ensure
the coasting is smooth.
• For longer downtimes, close the check valve in the inlet pipe.
• For longer periods of non-use and/or danger of freezing, empty the
pump and secure it against freezing.
NOTE:
The pump should always run smoothly and vibration-free and not be
operated in conditions other than those specified in the catalogue/
data sheet.
DANGER! Risk of burns or freezing to the pump when body parts
come into contact with the pump!
Depending on the pump or system operating conditions (fluid tem-
perature), the entire pump can become very hot or very cold.
• Keep a safe distance during operation!
• In the case of high water temperatures and system pressures, allow
the pump to cool down before all work.
• Always wear protective clothing, protective gloves and protective
goggles when working.
DANGER! Danger of death!
Due to protective equipment in the coupling area which has not
been installed, contact with rotating parts can lead to deadly inju-
ries.
English
37