Start-Up; Liquid Distribution; General; Flushing The Single Cooling Circuits - KEB COMBIVERT F5 Instructions For Use Manual

STArT-UP

8 Start-up

8.1 Liquid distribution

8.1.1 General

To ensure an unrestricted function of the cooling system, it is necessary to flush the
complete cooling system before the start-up of the cabinet system in order to remove
air inclusions.
ATTENTION

8.1.2 Flushing the single cooling circuits

The table shows the times and sequence of the single flushing operations.
Sequence 1
component WrA
Time 2 min
Amount 30 l/min
Table 9: Flushing the single cooling circuits
When flushing the single circuits proceed as follows:
► Close all circuits in flow and return flow at the liquid distributor.
► If a control of the volume flow via the cooling unit is not possible, control must be
► Flush the cooling circuits of WRA and WRB of the drive converter by opening the
► Flush the cooling circuit of the LW heat exchanger by opening the shutoff valve
► Open the ball valves at the water distributors.
► Open the cooling circuit of the AFE filter until the mechanical volume flow rate dis-
► Open the cooling circuit of the SF filter until the mechanical volume flow rate dis-
► In order to ensure complete ventilation, make sure that no air inclusions can be
► After the flushing process is completed, open all the shutoff valves and check the
When flushing do not use the flow rate of 130 l/min required to operate
the cabinet system. Observe the data from => Table 9.
1
Wrb
2 min
30 l/min
done via the ball valves at the coolant distributors. In this case, open the ball valves
on the water distribution halfway. See „Position stopcock".
shutoff valve completely.
completely.
plays max. 15 l/min, then flush.
plays max. 15 l/ min, then flush.
heard.
flow rate display of AFE and SF filters. The value may be max. 15 l/min.
2
LW heat exchanger
8 min
50 l/min 10-15 l/min
3 4
AFE filter SF filter
5 min 5 min
10-15 l/min
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