2202L5JE-DA-C5-N_2015.05.
2 Compressor Specifications and Structure
Compound 2-stage Screw Compressor 2.3 Compressor Specifications
1612LSC Speed Increaser Type
2-3
2.3.2 Operation Limits
Table 2-2 Operation Limits of 1612LSC Speed Increaser type
Items Operation Limits
Maximum discharge pressure MPa 1.96
Minimum suction pressure MPa −0.080
Maximum intermediate pressure MPa 0.588
Minimum intermediate pressure - > Suction pressure
Oil supply pressure
･ Maximum journal lubrication pressure MPa Discharge pressure + 0.39
･ Minimum journal lubrication pressure
MPa
Discharge pressure +0.049 and
Suction pressure +0.49
･ Minimum oil injection pressure MPa Suction pressure +0.49
Maximum Suction temperature °C 85
Minimum suction temperature °C −60
Maximum low-stage discharge temperature °C 90
Maximum high-stage discharge temperature °C 100
Maximum oil supply temperature °C 60
Minimum oil supply temperature °C 30
Maximum M (mail) rotor rotation speed min
-1
4500
Minimum M (male) rotor rotation speed min-
1
1450
Note : Unless otherwise noted, the pressure unit MPa represents the gauge pressure in this manual.
If operation at a indicated load of less than 30 % of capacity control is continued
for a long time except when starting up the machine, abnormal noises or
vibration may occur, so avoid doing so.
Repeating startup or shutdown operations in a short period of time is detrimental
for the starter and the motor as well as for the compressor itself. Refer to the
documentation of each device for the starting and stopping limitations of the
starter and the motor. After stopping the compressor, wait 15 minutes or more
before performing the next startup procedure.
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