Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
219/346
Set-up
Compressor type
Type no.
Oil level/flow switch
Notes
Gram
. GST 13-*GSB 84
58-98 level switch - used
Oil level check enabled
Stal
. SAB 80
48 level switch - used
Oil level check enabled
. FV/SV
49-52
flow switch - not used
. S50/70/93 53-55 no level switch - jumper Oil level check enabled
Older types
. VMY Mk 2 36
flow switch - not used
. VMY 347/447
37-40
flow switch - not used
. Grasso screw 103 flow switch - not used
Frick/Sabroe 1)
. SAB 120 S-355 X
118-138 level switch - used
Oil level check enabled
. SAB 157 HR 142 level switch - used Oil level check enabled
. SABflex 159
143 level switch - used
Oil level check enabled
Other screw types NOT supported
Frick/Sabroe screw compressor types are as standard equipped with Oil separator temperature control
and Oil level check as start permission. Therefore the Sep. temp. control configuration is enabled as de-
fault for Frick/Sabroe screw compressors.
Other screw compressor types listed in the table can now be set up for Oil separator temperature con-
trol. This is an advantage when UniSAB III is used for retrofit. For Gram compressors and some Stal
types equipped with oil level switch, the Oil level check is used as start permission and oil heater ‘switch
on’ permission.
14: Oil low alarm coefficient
This parameter is used for SABflex and SABCube oil pressure calculation, see Table 9: Measured and
calculated pressure levels - screw compressors.
15: Oil unload coefficient
This fixed parameter is used for SAB 157 HR to unload the plug valve to secure the lubricating oil pres-
sure at start-up. See subsection 3.2.3 Special limiters, Plug valve limiters (SAB 157 HR).
16: Oil load coefficient
This fixed parameter is used for SAB 157 HR to load the plug valve at start-up. See subsection 3.2.3
Special limiters, Plug valve limiters (SAB 157 HR).
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