Operation; Initial Start Preparation; Coupling Alignment - Ingersoll-Rand CENTAC C1000 Betriebsanleitung

11912.10.40
1
•
Cools down the compressor. After the compressor
shuts down, the prelube pump should be allowed to
run 0 to 0 minutes to cool down the compressor
bearings.
•
A seal air pressure transmitter interlock prevents the
prelube pump from operating if seal air pressure is
not established.
Main oil pump:
•
A positive displacement type pump driven by the
bullgear shaft.
•
The discharge pressure is controlled by a relief valve
downstream of the oil cooler and filter.
•
In the event of a main driver or power failure, the
main oil pump will continue to supply oil to the
bearings and gears during coast down.
The oil pumps are equipped with an inlet strainer for
protection against foreign particles. Check valves in the
discharge line of the prelube pump and on the inlet of the
main pump are provided to prevent reverse flow through
the pumps.
The oil follows the following path:
1. Oil passes through the oil pump to the oil cooler,
where the oil is cooled to between 40°C (105°F) and
46°C (115°F).
. Oil from the cooler is mixed with hot oil in the
thermostatic control valve.
. Oil then flows to the oil filter. The oil filter supplied is
a 10 micron treated paper element type filter.
4. Oil passes from the oil filter to the compressor
bullgear and pinion bearings.
5. A portion of the oil is bypassed through a relief
valve to the reservoir. This valve allows the input
pressure to the compressor to be raised or lowered
by adjusting the valve setting.

Operation

Initial Start Preparation

The preparation for and the initial start-up of the
Centac compressor should be done under supervision
of an Ingersoll Rand Technical Representative.
80446099-B EN
NOTE
6. The remainder of the oil passes through the
compressor and drains into the reservoir.
All the necessary instruments and safety devices are
included in the oil system to protect the compressor. The
compressor protection devices in the lubrication system
include:
•
A pressure-sensing device trips the unit to indicate
low oil pressure.
•
A temperature-sensing device that senses abnormal
oil temperature is provided. This device is set to trip
the unit and indicate abnormal temperature. The
same device acts as an interlock to prevent the unit
from being started if oil temperature is below the
minimum.
•
A wet element type lube oil reservoir heater is
supplied for most units to insure adequate oil
temperature for compressor start-up.
•
The lube oil reservoir has provisions for a lube oil
drain with plug. The customer may install a valve on
the connection to facilitate changing lubricant.
•
An oil temperature control device is supplied that
automatically regulates proper oil temperature to
the bearings by mixing hot and cold lubricant.
Some common optional equipment which may be
furnished as part of the Centac compressor lubrication
system include:
A dual element oil filter complete with built-in transfer
valve.
•
A shell and tube type oil cooler sized for 5°C (95°F)
water
•
A shell and tube type oil cooler sized for 40°C (105°F)
water
Refer to certified drawings for optional devices and proper
settings.

Coupling Alignment

CAUTION
Coupling alignment must be correct for successful
operation. Flexible couplings will not compensate
for any appreciable misalignment. Rapid wear, noise,
vibration, and actual damage to the equipment may
be caused by misalignment. Therefore, the coupling
must be aligned within the limits given.
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C1000 OPERATION MANUAL