Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
89/346
Compressor control and surveillance
The
Actual set point
shows the regulating value of the inlet temperature at that particular moment.
If the outside temperature is 30
°
C, this value must be 40
°
C. If the outside temperature is -10
°
C, the val-
ue must be 65
°
C. The outside temperature can be seen in % of the measuring range in the picture
Con-
trol values/Capacity/Values
.
Examples 1) and 2) precondition that the flow temperature is measured with the normal
Process Out
PT100 input
, but if a temperature transducer of 4-20 mA is installed in a common reservoir using
User
input 1
, the outdoor compensation will also be able to work here.
See subsection
3.1.10 User input regulator (Ext. input)
where the procedure is exactly the same as the
one described in the above examples as this regulator can also be used for both
Cooling
and
Heating
functions.
In both examples the outlet temperature will rise when outside temperatures fall. If the opposite effect is
required, i.e. rising outlet temperature at rising outside temperature,
Sp1
and
Sp2
must be switched.
Содержание SABROE Unisab III Control
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