Operations screen
Figure 58: Operations screen
This screen allows definition of general parameters having to do with the operation of the chiller.
Table 164: Display only
Field/LED name Description
Chilller Run Time
Displays the amount of time the chiller has been running since the
last start signal was received. Value is reset to zero when the chiller
enters coastdown. It remains at zero while shutdown and during
System Prelube
Table 165: Programmable
Button Access level Description
Control
Source
Operator
Defines whether the control of the chiller will be Local, Digital
Remote, Analog Remote, Modem Remote or ISN (BAS) Remote.
Number of
Starts
Admin
Displays the number of the starts the chiller has initiated. This may
be reprogrammed to a desired value (generally when this value has
been reset due to a Microboard replacement) but should not be
done so arbitrarily.
Operating
Hours
Admin
Displays the total accumulated run time of the chiller. This may be
reprogrammed to a desired value (generally when this value has
been reset due to a Microboard replacement), but should not be
done so arbitrarily
Level Control – Automatically set to Analog.
OptiSave – Automatically set to Disabled.
YK-EP Style B Centrifugal Chiller164
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