Installation And Commissioning; Recommended System Component Layout; Compressed Air Pre-Treatment - CompAir CN2-20P Mode D'emploi

3 Installation and Commissioning

Installation should be performed by Service Personnel only.

3.1 Recommended System Component Layout

Ref Description
(1)
1
Compressor
2 Wet air receiver complete with pressure relief valve and gauge
3 Water separator
4 General purpose and dust filtration
5 Compressed air dryer
(1) If using an oil lubricated compressor we recommend the use of oil vapour removal filtration.
The system must be protected with a suitably rated thermal pressure relief valve upstream of the generator.

3.1.1 Compressed air pre-treatment

To achieve the maximum performance, reliability and service life, CompAir strongly recommend the use of a desiccant dryer based pre-treatment
package.
A Desiccant dryer pretreatment package provides a physical barrier to oil, ensures maximum generator efficiency by minimising Carbon
Molecular Sieve (CMS) moisture loading and is in full compliance with the CompAir 5 year warranty program.
Some applications such as pharmaceutical and food require nitrogen moisture contents that are only achievable with a desiccant dryer based
pre-treatment package.
PPM generators must be operated with a desiccant dryer based pre-treatment package.
This generator will operate with a refrigerant type dryer providing it is correctly maintained and achieves a constant pdp of +3°C, however this is
the least preferred option as this type of dryer provides a minimal barrier to oil carry-over and should be strongly discouraged. It must be used in
conjunction with an activated carbon Oil Vapour Removal (OVR) filter.
In certain circumstances it may also be necessary to install an OVR filter after the desiccant dryer pre-treatment package.
Note. Any contamination of the CMS due to oil or excess moisture loading will invalidate the warranty.
If in any doubt, consult your local CompAir specialist for further information.
Ref Description
6 Dust filter
7 Buffer vessel
8 Dust filter (supplied with the generator)
9 Nitrogen generator
10 Nitrogen Outlet to application
11