http://air.ingersollrand.com
OPeRATInG InSTRUCTIOnS
OPeRATIOn AnD MAInTenAnCe MAnUAL
OPeRATInG InSTRUCTIOnS
GeneRAL OPeRATIOn
The compressor is an electric motor driven, single
stage screw compressor, complete with accessories
piped, wired and base plate mounted. It is a totally self
contained air compressor package.
The standard compressor is designed to operate in
an ambient range of 5.°F - 10°F (2°C to 0°C). The
maximum temperature is applicable up to a maximum
elevation of 20ft (1000m) above sea level. Above this
altitude significant reduction in maximum allowable
ambient temperature is required.
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 through the aftercooler and out of the
compressor.
Cooling air is moved through the coolers by the cooling
fan and discharged from the machine.
CAUTIOn
Cooling air is drawn in at the rear of the machine
package passing through the filter and cooler
before being discharged from the top of
the machine. Care should be taken to avoid
blocking the airflow, or causing any restriction
in excess of the maximum backpressure allowed
for ducting.
Do not direct the airflow at face or eyes.
By cooling the discharge air, much of the water vapour
naturally contained in the air is condensed and may be
drained from the downstream piping and equipment.
The coolant system consists of a sump, cooler,
thermostatic valve and a filter. When the unit is
operating, the coolant is pressurized and forced to the
compressor bearings.
The compressor load control system is automatic
on-
off line.
This allows the compressor to maintain a set
discharge line pressure by varying output capacity to
match the system demand. The unit is provided with
an automatic stop and restart system for use in plants
where the air demand varies sufficiently to allow a
compressor to shut down and save power. Significant
system volume will assist this and is recommended.
When the compressor is equipped with the optional
dryer, the dryer will cycle on and off with the
compressor.
wARnInG
when the unit stops running as the result of low
air demand, it may restart and return to load at
any time.
Safety of operation is provided as the compressor
will shut down if excessive temperatures or electrical
overload conditions should occur.
CAUTIOn
This unit is not designed or intended to operate
when contaminated with silicone. Lubricants,
greases or other items containing silicone
should not be used on this unit.
CAUTIOn
LOw DeMAnD APPLICATIOnS
During periods of low demand, the compressor
may not reach its normal operating
temperature. Sustained operation at low
demand can result in the build up of condensate
in the coolant. If this situation occurs, the
lubricating characteristics of the coolant can
be impaired which may lead to damage of the
compressor.
THe COMPReSSOR SHOULD Be ALLOweD
AMPLe LOADeD RUnnInG TIMe OF AT LeAST 10
MInUTeS PeR HOUR DURInG nORMAL DAILY
USe.
