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11
2.4 ELECTRICAL INSTALLATION
Before proceeding further, we recommend that you
review the safety data in the front of this manual.
Locate the compressor data plate on the side of the
cooler box or end of the unit.
The data plate lists the rated operating pressure, the
maximum discharge pressure and the electric motor
characteristics and power.
Confirm that the line voltage and compressor nameplate
voltage are the same and that the standard starter box
meets the intent of NEMA 1 guidelines.
Open the starter box door. Confirm that all electrical
connections are made and tightened. Confirm that the
control transformer is wired correctly for supply voltage.
See Figure 2.4-1 on next page for typical control
transformer wiring.
Two types of dryers, refrigerated or desiccant, are used
to correct moisture related problems in a compressed air
system. Refrigerated dryers are normally specified where
compressed air pressure dew points of 33°F (1°C) to
39°F (4°C) are adequate. Desiccant dryers are required
where pressure dew points must be below 33°F (1°C).
Contact your local Ingersoll-Rand distributor for
assistance in selecting correct Ingersoll-Rand filtration or
drying products.
NOTE: Screw type compressors should not be installed
in air systems with reciprocating compressors without a
means of pulsation isolation, such as a common receiver
tank. We recommend both types of compressor units be
piped to a common receiver utilizing individual air lines.
When two rotary units are operated in parallel, provide an
isolation valve and drain trap for each compressor before
the common receiver.
ROTARY TWO COMPRESSOR SYSTEM
PRESSURE
RELIEF
VALVE
PRESSURE
GAUGE
54425996 Rev. C (75-160 KW)
Compressor Package Data
COMPRESSOR MODEL...............................
CAPACITY......................................................
RATED OPERATING PRESSURE.................
MAX.DISCHARGE PRESSURE...................
MAX.MODULATE PRESSURE.....................
NOMINAL DRIVE MOTOR............................
NOMINAL FAN MOTOR................................
TOTAL PACKAGE AMPS...............................
VOLTS............................................................
PHASE / HERTZ............................................
CONTROL VOLTAGE.....................................
SERIAL NUMBER..........................................
CONTACTOR AMP. RATING.....................................
ASSEMBLY AMP. RATING........................................
LOCKED ROTOR AMP. RATING OF ASSY.............
AIR SOLUTIONS GROUP
DAVIDSON, NORTH CAROLINA 28036
WWW.AIR.INGERSOLL-RAND.COM
54425996 Rev.C
m
3
/MIN
BARG
BARG
BARG
KW
KW
39557095 Rev.05 (100-200 HP)
Compressor Package Data
COMPRESSOR MODEL...............................
CAPACITY......................................................
RATED OPERATING PRESSURE.................
MAX.DISCHARGE PRESSURE...................
MAX.MODULATE PRESSURE.....................
NOMINAL DRIVE MOTOR............................
NOMINAL FAN MOTOR................................
TOTAL PACKAGE AMPS...............................
VOLTS............................................................
PHASE / HERTZ............................................
CONTROL VOLTAGE.....................................
SERIAL NUMBER..........................................
CONTACTOR AMP. RATING.....................................
ASSEMBLY AMP. RATING........................................
LOCKED ROTOR AMP. RATING OF ASSY.............
AIR SOLUTIONS GROUP
DAVIDSON, NORTH CAROLINA 28036
WWW.AIR.INGERSOLL-RAND.COM
39557095 Rev.05
CFM
PSIG
PSIG
PSIG
H.P.
H.P.