Johnson Controls SABROE UniSAB III - Page 41

Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
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Alarms and shutdowns
Measuring Min. Max. Factory Note
Diff. pressure across oil
filter (bar)
Calculated value
SAB 120-151 and
SAB 193-233-283-355
High shutdown
High alarm
0.0
0.0
4.0
4.0
1.5
1.2
2+11b
2+11b
Diff. pressure across oil filter
(bar)
Calculated value
SAB 157HR, SAB 273S
High shutdown
High alarm
Low alarm
Low shutdown
0.0
0.0
-
-
2.0
1.6
-
-
1.5
1.2
-
-
2+11b
2+11b
-
-
Diff. pressure
across oil filter (bar)
Calculated value
SAB 80
High shutdown
High alarm
0.0
0.0
2.5
2.5
1.6
1.4
2+11a+19
2+11a+19
Diff. pressure across oil
filter (bar)
Calculated value
SAB 109-133-159 and SABflex
High shutdown
High alarm
Low alarm
Low shutdown
0.0
0.0
-
-
2.0
1.8
-
-
1.5
1.2
-1.0
-
2+11a+25
2+11a+25
-
Oil pump pressure (bar)
Calculated value
SAB 120-151 and SAB 193-
233- 283-355
High shutdown
High alarm
Low alarm
Low shutdown
-
-
0.0
0.0
-
-
3.2
3.2
-
-
0.4
0.1
-
-
2+5+30
2+5+31
Oil balance reduction pressure
(bar)
Calculated value
SAB 193H, 233H, 283H, 355H,
SAB 273S
High shutdown
High alarm
Low alarm
Low shutdown
5.0
5.0
0.0
0.0
15.0
15.0
9.0
9.0
11.0
9.0
5.0
3.0
1+36
1+36
1+36
1+36
Table 9: Measured and calculated pressure levels - screw compressors