C950 PLANNING & INSTALLATION MANUAL
7
TP0029 Rev.5
Ó
2000 Ingersoll-Rand Company
Date of Revision: 15 August, 2000
Plant Layout
The location of a packaged centrifugal compressor within a plant facility is very important.
The compressor should be located in an area that is accessible to operators and
maintenance personnel.
Machinery should be installed where it is easily accessible for observation and maintenance.
Operation and maintenance personnel will generally give better attention to a compressor
located in a well planned, accessible area. Compressors installed in elevated locations or in
pits should have stairways, catwalks, etc. for easy access to the machinery.
During installation, machinery can best be handled with overhead crane facilities. Adequate
space should be provided to permit easy handling of the unit during installation (see the
General Arrangement drawing for compressor maintenance space). Provide floor space in
the vicinity of machinery where parts may be placed during periodic inspection of the rotating
elements and internal parts. Make provisions for clearance requirements specified on the
General Arrangement drawing.
Indoor/Outdoor Installation
The unit may be installed indoors or outdoors. For an outdoor installation, protective
measures are necessary for the motor, control panel, and other items. It is important when
the compressor package is purchased that Ingersoll-Rand is made aware of plans and
makes any necessary recommendations for outdoor installation.
If the unit is an indoor installation, a heated building is preferred. Provide adequate space for
ease of handling during installation.
Ventilation
Ventilation around the unit is important. The unit should not be installed in a damp or dusty
atmosphere or where corrosive vapors may enter the compressor or driver.
On motor driven units the heat radiated to air in the room will be approximately 6% of the
total horsepower: 1HP=42.4 BTU/MIN
1KW=56.9 BTU/MIN
Noise
In areas where noise could be a problem, it is important to treat hard reflective surfaces in
the area. Avoid installing the unit in an area with low hard ceilings and walls.
Foundation
The compressor foundation does not need to be massive but should be sufficient to provide
support for the unit.
Since there are no out-of-balance forces, such as reciprocating or shock loads, all loads on
the foundation may be considered as static loads. If the unit is to be located in an area with
other machinery, it is essential that vibrations are not transmitted to the compressor. Isolation
pads are recommended in these instances.
For the Centac compressor package, a simple continuous concrete pad or steel support
structure is recommended for each compressor. Precautions should be taken to ensure a
reasonably uniform base around the pad. Uneven settling or thermal expansion could cause
machinery misalignment. Appropriate bolting must be used to keep the compressor in place.
Refer to the General Arrangement drawing for location and size of anchor boltholes.
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90.10_Pre-Installation and Operation Manual
