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9
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The acoustic alarm can be switched off by pressing any button on the front side.
Display
Fig. 9.1
Fig. 9.2
Fig. 9.3
Fig. 9.4
Fig. 9.5
417101555_CoolProtect.doc
Cause of error
Bleeding ball valve blocked
Bleeding relay does not switch
Bleeding ball valve does not
close
Bleeding relay does not switch
Bleeding ball valve blocked
Bleeding relay does not switch
There is no release
(terminal 18/19).
Circulation pump is activated
(terminal 53/54/55), but release
(running message circulation
pump) does not occur.
- 72 -
Remedy
Clean bleeding ball valve
Exchange the relay board
Exchange bleeding ball valve
Exchange the relay board
Clean bleeding ball valve
Exchange the relay board
Check release signal
Check release signal
Rev.: 08-06/10
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