2.4 Locating the Equipment
2.4.1 Environment
The equipment should be located indoors in an environment that protects it from direct sunlight, moisture, and dust. Changes in temperature,
humidity, and airborne pollution will affect the environment in which the equipment is operating and may impair the safety and operation. It is the
customers' responsibility to ensure that the environmental conditions specified for the equipment are maintained.
2.4.2 Space Requirements
The equipment should be mounted on a flat surface capable of supporting its own weight plus the weight of all ancillary parts. There must be
adequate space around the equipment to allow airflow and access for maintenance purposes and lifting equipment. A minimum spacing of
approximately 500mm (20") is recommended around all sides. Refer to table 2.2 for overall dimensions of the equipment.
Do Not position the equipment so that it is difficult to operate or disconnect from the electrical supply.
Once positioned the equipment should be secured to the floor using M20 bolts.
2.4.3 Ventilation Requirements
Due to the nature of operation there is a possibility of oxygen enrichment surrounding the generator. Ensure that the
area is adequately ventilated. Where the risk of oxygen enrichment is high, such as a confined space or poorly ventilated
room, the use of oxygen monitoring equipment is advisable.
Nitrogen is not a poisonous gas but, in a concentrated form, there is a risk of asphyxiation. Depending upon the model
and operating pressure, the generator is capable of delivering nitrogen at a flow rate of 33.3 m
operated within a confined space ensure that adequate ventilation and oxygen monitoring equipment is fitted.
2.4.4 Air Inlet Quality
This generator is designed for use with clean dry compressed air in accordance with ISO 8573-1:2001 class 3.2.2.
ISO8573-1:2001 is an international standard that specifies the purity classes of compressed air with respect to solid particulates, water and oil.
Understanding the requirements of the standard falls outside of the scope of this manual, however the following table summarises the
classification for each contaminant. Further information on ISO 8573-1 can be found in the domnick hunter publication "A GUIDE TO THE ISO
8573 SERIES COMPRESSED AIR QUALITY STANDARD" (Stock Number: 17 400 4765).
ISO 8573-1:2001 class 3.2.2 equates to the following:
Class 3 (Solid Particulate)
In each cubic metre of compressed air, not more than 10,000 particles in the 0.5–1 micron size range are allowed.
In each cubic metre of compressed air, not more than 500 particles in the 1–5 micron size range are allowed.
Class 2 (Water)
A pressure dewpoint of -40
No liquid is allowed.
Class 2 (Oil)
In each cubic metre of compressed air, not more than 0.1mg of oil is allowed.
Note. This is the combined level for aerosol, liquid and vapour.
2.4.5 Electrical Requirements
Connection to the electrical supply should be made through a switch or circuit breaker rated at 250VAC, 15A with a minimum short circuit rating
of 10KA. This device should have a disconnection time not exceeding 40mS and all current carrying conductors should be disconnected.
The device chosen should be clearly and indelibly marked as the disconnecting device for the equipment and be located in close proximity to
the equipment and within easy reach for the operator.
Overcurrent protection must be fitted as part of the building installation. This protection should be selected in accordance with local and national
code regulations with a minimum short circuit rating of 10KA.
o
C or better is required.
3
/hr. If the generator is
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