Carrying Out Setting-To-Work; Daily Start-Up; Setting-To-Work After Storage - Laird OL 4503 Operation Manual

6.2.4 Carrying out Setting-to-Work

CAUTION
Lack of coolant may destroy the pump!
 Operate the unit only when the filling level of the coolant container is correct!
 Check the filling level of the coolant container regularly!
After connecting the cooling circuit, filling the coolant container and finishing the electrical connection follow
the steps below for the setting-to-work of the unit:
1) Open the stop valve.
2) Let the unit run for about 1 minute in order to de-aerate the pump.
3) Switch off the unit.
4) Close the stop valve.
5) Let the unit run for about 10 minutes in order to fill and de-aerate the cooling circuit.
6) Switch off the unit.
7) Check the filling level using the inspection glass. Fill up oil, if required, until a liquid level in the center of
the inspection glass. Use a funnel in order not to moisten any current-carrying components with oil.
8) Remount the unit cover.
DANGER
Danger to life by electrical shock caused by improperly mounted grounding washer!
 Mount the grounding washer at the position of one of the four screws securing the unit cover!
 Make sure that the screws are properly tightened!
This is to make sure that the grounding washer cannot get loose by vibrations during operation which could
lead to the situation of the unit cover carrying current.
9) Switch on the unit again and check the compliance with the operational parameters.
 The unit is ready for use.
6.3

Daily Start-up

Switch on the unit about 1 minute prior to using the equipment that is to be cooled.
6.4

Setting-to-Work after Storage

Setting-to-work after storage will have to follow the same procedures as required for initial operation (see
chapter 6.2).
Laird Technologies GmbH
Operation Manual (Translation)
Date: 06-Jul-2015
Version: 2.0
Initial Operation
Daily Start-up
Oil-Air Cooling Unit OL 4503
1264.00
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