Ingersoll-Rand M200-LV, Operation And Maintenance Manual, Page: 16 / 38

GENERAL INFORMATION
14
M200–LV M250–LV
GENERAL OPERATION
The compressor is an electric motor driven, single stage screw
compressor, complete with accessories piped, wired and baseplate
mounted. It is a totally self contained air compressor package.
The standard compressor is designed to operate in an ambient
range of 1,7
_
C to 46
_
C. The standard maximum temperature of 46
_
C
is applicable up to an elevation of 1000m (3280ft) above sea level.
Above this altitude significant reductions in ambient temperature are
required if a standard motor is to be used.
Compression in the screw type air compressor is created by the
meshing of two (male & female) helical rotors.
The air/coolant mixture discharges from the compressor into the
separation system. This system removes all but a few PPM of the
coolant from the discharge air. The coolant is returned to the cooling
system and the air passes to the aftercooler and out of the compressor
through the moisture separator (optional).
Air is pulled into the compressor by the cooling fan and is pushed
through the coolers.
By cooling the discharge air and passing it through the separator,
much of the water vapour which is naturally present in the air, can be
removed.
The coolant system consists of a sump, cooler, thermostatic valve
and a filter. When the unit is operating, the coolant is pressurised and
forced to the compressor bearings.
The compressor load control system is automatic ’On–Off line’. The
compressor will operate to maintain a set discharge line pressure and
is provided with an auto restart system for use in plants where the air
demand varies widely.
Panel instrumentation is provided to indicate the compressor
operating conditions and general status.
The modulation system extends the control types to Modulation
(capacity control) and Automatic Control System when the compressor
switches between ’On–Off line’ and modulation as demand varies.
The electrical components are housed in a readily accessible sheet
metal cabinet.
Safety of operation is provided for as the compressor will shut down
if excessive temperatures, electrical overload conditions, or system
over pressure should occur.
M200AC M200WC
PRESSURE 7.5 bar
(L)
8.5 bar
(M)
10.0 bar
(H)
7.5 bar
(L)
8.5 bar
(M)
10.0 bar
(H)
CAPACITY 34.3 m
3
/min
1211 ft
3
/min.
32.9 m
3
/min
1162 ft
3
/min.
30.2 m
3
/min
1066 ft
3
/min.
34.3 m
3
/min
1211 ft
3
/min.
32.9 m
3
/min
1162 ft
3
/min.
30.2 m
3
/min
1066 ft
3
/min.
FULL LOAD CURRENT
(MAXIMUM)
380V 465 433
FULL LOAD CURRENT
(MAXIMUM)
415V 431 407
STARTING CURRENT
(MAXIMUM)
380V 862 862
STARTING CURRENT
(MAXIMUM)
415V 942 942
*NOISE LEVEL
CAGI PNEUROP 1m 84 +/– 3dB(A) 84 +/– 3dB(A)
* Equivalent continuous sound pressure level (workstation) (rated load)
WEIGHT
O.D.P. 3930 kg 4030 kg
WEIGHT
T.E.F.C. 4560 kg 4660 kg