Johnson Controls SABROE Unisab III Control, Engineering Manual

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Engineering manual - UniSAB III 1.10.8
224/346
001930 en 2021.06
Set-up
• SMC, CMO
• TSMC, TCMO (( Intermediate pressure sensor range -1 to 25 Bar will not change)
When using high-pressure ranges 25/59/25/25 or 25/59/59/59, the maximum setting for suction pres-
sure high alarm is raised to 18.0 bar and maximum settings for suction pressure set point 1 and set point
2 are raised to 16.0 bar.
In addition to high-pressure screw compressor types, the pressure range 25/59/59/59 can now also be
selected for a range of ‘normal’ screw compressor types.
New screw compressor types:
• SAB 120 S - SAB 151 L
• SAB 193 S - SAB 355 X
• SABCube 109 - 159
• SABflex 159 ( Internal suction pressure sensor range -1 to 25 Bar will not change)
Old screw compressor types:
• VMY Mk 2 - VMY 447 M
• SAB 80 - S 93
• SAB 110 - 163 H Mk 2
• SAB 202 S - SAB 330 E
• SAB 128 HR - SAB 163 HR
• SAB 110 SR/LR
• GST 13 - GST 25,
• GSV 50 L - GSV 900 H
• SAB 283 - SAB 355 Mk 1
When using the high-pressure ranges 25/59/25/25 or 25/59/59/59, for the range of ‘normal’ screw com-
pressor types, the maximum setting for
Suction pressure high alarm is raised to 18.0 bar, and maximum
setting for suction pressures (set point 1 and set point 2) are raised to 16.0 bar. All other alarm and shut-
down maximum limits will still be limited as listed in the tables in subsections 2.1.2 and 2.1.3
. For the
compressor type VMY Mk 2, however, it is possible to increase the suction pressure, discharge pres-
sure, discharge temperature and oil temperature alarm/shutdown high limits and set points to the high-
pressure settings listed with bold types in Table 50.
It is the responsibility of the operator to make sure that compressor safety is not compromised
when using these high-pressure settings.