mycom 2016LMC User Manual

2200LZJE-HO-C6-N_2013.12.
Chapter 2 Configuration and Specifications of Compressor
Compound 2-stage Screw Compressor 2016**C 2.3 Compressor Specifications
2-3
2.3.2 Operation Limits
Table 2-2 Operation Limits of 2016**C
Items Operation Limits Remarks
Maximum discharge pressure 1.96 MPa *Note 1 Casing design pressure: 2.6 MPa
Minimum suction pressure -0.080 MPa Shaft seal, inherent properties
Maximum intermediate
pressure
0.588 MPa Bearing
Minimum intermediate pressure > Suction pressure
Recommended condition:
> Suction pressure + 0.1 MPa
Oil supply pressure Ps: Suction pressure, Pd: Discharge pressure
1) Journal lubrication
pressure
Pd + (0.049 to 0.39)
MPa
Balance piston lubrication
(Pressure lubrication)
2) Bearing and oil injection
minimum lubrication
pressure
Ps + 0.49 MPa
*Note 2
Check valve must be installed.
3) Balance piston minimum
lubrication pressure
Pd + 0.049 MPa
Suction temperature
max. 85°C
min. -60°C
Clearance allowed between rotor and
casing Casing design
Maximum discharge
temperature
Low-stage 90°C
High-stage 100°C
Clearance allowed between rotor and
casing
Maximum oil supply
temperature
60°C
Oil viscosity should be not less than
13mm
2
/s.
(Optimally, oil viscosity should be between
13 and 40 mm
2
/s.)
Minimum oil supply temperature 30°C
Oil viscosity should be not higher than
60mm
2
/s.
Maximum M rotor rotation
speed
4000 rpm Bearing, inherent properties, seal
Minimum M rotor rotation speed 1450 rpm Bearing
Note 1: Unless otherwise noted, the pressure unit MPa represents the gauge pressure in this manual.
Note 2: When it is required that pressure difference between Pd and Ps should be not greater than
0.49 MPa, oil pump needs to be installed.
If a combination of "NH
3
+ compatible oil (PN46)" is used for working fluid (refrigerant) and
lubricating oil, oil pump must be installed.
 If operation at partial load, which is not greater than 30% of the indicated load, is
continued for a long time except when starting up the machine, abnormal noises
or vibration may be generated. So avoid such operation.
 Repeated startup and stop in a short period is harmful not for the startup devices
and electric machinery but also for the compressor itself. For information on the
start/stop limitations, refer to each instruction manual. Wait at least 15 minutes
after stopping the compressor before restarting it.

mycom 2016LMC Specifications

General

Brand	mycom
Model	2016LMC
Category	Air Compressor
Language	English