Operation Limits - mycom J-Series Instruction Manual

2.3.2

Operation Limits

Table 2-4 Operation Limits of the J-Series Screw Compressor
Maximum discharge pressure
Maximum suction pressure
Minimum suction pressure
Minimum lubrication pressure
Forced oil supply system MPa
Differential pressure oil supply system MPa
Maximum suction temperature
Minimum suction temperature
Maximum discharge temperature
Maximum lubrication temperature
Minimum lubrication temperature
Maximum rotation speed (M rotor)
Minimum rotation speed (M rotor)
Refrigerant
Note 1: Pressure unit [MPa] in the table 2-4 means gauge pressure.
Note 2: The J-series compressors must be used within the allowable operation range defined in the
table 2-4 and next page, Figure2-1.
 When using J series in the explosion-proof area, use certainly in the condition with the
maximum suction temperature of equal to or less than 50 °C, the maximum lubrication
temperature of equal to or less than 55 °C (Refer to Note).
It is important specifically in the Application limits each clause eyes.
Note: When exceeding 55 °C, consult us for the further study because the maximum
lubrication temperature limitation is related to the atmosphere temperature, too.
Screw Compressor J-series
I t e m
MPa
MPa
MPa
Po: Lubrication pressure, Ps: Suction pressure,
Pd: Discharge pressure
MPa
min
min
2 Structure and Specifications of the Compressor
L i m it va l u e
( Po - Ps ) ≧0.5
( Po - Pd ) ≧0.05
( Pd - Po ) ≤ 0.15
°C
°C
°C
°C 70 but, when using in the
explosion-proof area, it is 55.
°C
-1
4500 (280J: 3600)
-1
- NH , HFC, CO
3
2-5
2205B0JE-DA-J-N_2014.05.
3.2
1.0
-0.080
50
-60
100
20
1450
, Propane and Propylene
2
2.3 Compressor Specifications