Automatic operation device
The value of automatic operation device is set as follows:
Item (unit) Setting value Remarks
Variable: 30 sec ~ 10 min
(standard value: 3 min) (Note 1)
It should be normally over 3 min.
In all chiller units there is a timer which prevents compressors starting at the same time.
5.1.4. Individual indication for activation of protection device
Indication in the segment
Status of unit and activation of the different protection devices are indicated on the display. This indication
helps to make a diagnosis about the unit, indicating if it is running well, and it can help to solve different
inconvenients on the system.
Indication on the segment at normal operation (standard menu display) is as follows:
Segment indication abnormal
code
Contents
C1~C5 means No of cycle. (C1: Cycle 1)
Number of cycle whose manual set switch is ON is indicated alternately.
It is a state from the output of pump operation signal to the confi rmation of pump interlock. In case that
pump interlock is confi rmed immediately, it is possible that the indication is not checked visually since the
indication time is too short.
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