Johnson Controls SABROE Unisab III Control - Set Points for Regulators

3.1.9 Set points for regulators
Settings - regulating parameters, screw compressors
Regulator type Minimum Maximum
Factory
setting
Unit
Capacity control
Nz 0.0 10.0 0.0 %
Pb 0.1 999.9 200.0 %
Min. pulse 0.3 50.0 0.5 sec.
Run time 1.0 999.9 See note 1 sec.
Vi slide control,
compressors with
automatic Vi-
regulation
Nz 0.0 10.0 4.0 %
Pb 0.1 999.9 200.0 %
Min. pulse 0.3 10.0 0.5 sec.
Run time 1.0 999.9 See note 1 sec.
Suction
pressure
Sp 1
-1
-90
9
24.8
1
-19.1
bar
°C/R717
Sp 2
-1
-90
9
24.8
1
-19.1
bar
°C/R717
Sp 1
(SAB 157HR)
-1
-90
19
49.3
1
-19.1
bar
°C/R717
Sp 2
(SAB 157HR)
-1
-90
19
49.3
1
-19.1
bar
°C/R717
Nz 0.0 200.0 0.0
°C/R717
Pb 0.1 999.9 10.0
°C/R717
(T.Int.) Only
when PID=Yes
0.5 999.9 60.0 sec.
(T.Diff.) Only
when PID=Yes
0.0 99.9 0.0 sec.
Process out
temperature
(Brine)
Sp 1 -60 100 20
°C
Sp 2 -60 100 20
°C
Nz 0.0 100 0
°C
Pb 0.1 999.9 50
°C
(T.Int.) Only
when PID=Yes
0.5 999.9 60.0 sec.
(T.Diff.) Only
when PID=Yes
0.0 99.9 0 sec.
Discharge
Sp 1
-1
-90
24
58
8
21.4
bar
°C/R717
Sp 2
-1
-90
24
58
8
21.4
bar
°C/R717
Sp 1
(SAB 157HR)
-1
-90
52
90.0
8
21.4
bar
°C/R717
Sp 2
(SAB 157HR)
-1
-90
52
90.0
8
21.4
bar
°C/R717
Nz 0.0 200 0.0
°C/R717
Pb 0.1 999.9 10
°C/R717
(T.Int.) Only
when PID=Yes
0.5 999.9 60.0 sec.
(T.Diff.) Only
when PID=Yes
0.0 99.9 0 sec.
Process out
Sp 1 -60 100 20
°C
Compressor control and surveillance
Engineering manual - Unisab III 1.10
001930 en 2014.09
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