EVCO EC6708 - Manual (Page 24)

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WORKING SETPOINT
Working setpoint setting (working suction pressure) - Working setpoint
WORKING SETPOINT SETTING (WORKING SUCTION PRES-
SURE)
To modify the working setpoint value:
a) push and release the set key (to the release of the set key the
instrument displays the actual value, for instance 0.00 bar, the
compressors/choking valves and condenser fans associated to
the outputs K1 ... 8 LED turning on to indicate the actual user-
relay output configuration and the set LED flashes to indicate
that a working setpoint setting procedure is running; passed
four seconds without operated with the keys the instrument
automatically turns out from the working setpoint setting pro-
cedure)
b) push and release over and over the up or the down key within
four seconds as long as the instrument displays the desired
value, for instance 1.00 bar (keeping pushed the up or the
down key the value gets increased or decreased more quickly)
c) after the modification push and release the set key (to the
release of the set key the instrument turns out from the work-
ing setpoint setting procedure).
Additional informations
• during a corrupted memory data alarm the access to the
working setpoint setting procedure is refused (see the para-
graph Alarms on the page 46)
• the working setpoint value gets stored in a non volatile memory
even if a lack of power supply happens.
WORKING SETPOINT
LABEL MIN. MAX. U.M. WORKING SETPOINT
r 1 r 2 (3) working setpoint
Notes
• the parameters r 1 and r 2 belong to the User Menu; see the
chapter User Menu on the page 32
• the symbol (3) indicates that the unit of measure depends from
the parameter /5P and from the parameters /A6 and /A7 (the
parameters /5P, /A6 and /A7 belong to the User Menu; see the
chapter User Menu on the page 32).
working setpoint
It establishes the suction pressure associated to the compressors.
For further informations about the working setpoint meaning see the
paragraph Suction pressure regulation on the page 9.