Johnson Controls SABROE Unisab III Control - Measured and Calculated Pressure Levels - Recips

2.1.4 Measured and calculated pressure levels - recips.
Measuring Min. Max. Factory Note
Suction pressure
(bar)
High shutdown
High alarm
Low alarm
Low shutdown
-
1.5
-1.0
-1.0
-
9.0
6.0
6.0
-
5.0
2.5
1.5
-
3+4+5
3+4+5
3+4+5
Discharge pressure
(bar)
High shutdown
High alarm
Low alarm
Low shutdown
4.0
3.0
-
-1.0
24.0
22.0
-
-1.0
16.0
15.0
-
-1.0
1+6
1+6
-
1+5
Intermediate pressure (bar)
Two stage compressors only
High shutdown
High alarm
Low alarm
Low shutdown
4.0
3.0
-1.0
-1.0
24.0
22.0
10.0
10.0
7.0
6.0
-1.0
-1.0
1+6
1+6
1+6+16
1+6+16
Oil pressure (bar)
Calculated value
SMC100/TSMC/HPC
High shutdown
High alarm
Low alarm
Low shutdown
Low-low shutdown
5.0
5.0
0.5
0.5
0.0
7.0
7.0
5.0
5.0
1.5
6.0
5.5
4.0
3.5
0.5
2+5+16
2+5
2+5+14
2+5+14
2+5+32
Diff. pressure across oil filter
(bar)
Calculated value SMC100/
TSMC/HPC
High shutdown
High alarm
Low alarm
Low shutdown
0.0
0.0
-
-
10.0
7.0
-
-
6.0
4.0
-
-
2+11a
2+11a
-
-
Table 11: Measured and calculated pressure levels - reciprocating compressors
Alarms and shutdowns
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Engineering manual - Unisab III 1.10
001930 en 2014.09