Preconditions for use, 4 manufactured by – Kemppi FreshAir Pressure Flow Control unit User Manual

Page 6

errors or omissions. Kemppi reserves the right to change the specification of

the product described at any time without prior notice. Do not copy, record,

reproduce or transmit the contents of this guide without prior written

permission from Kemppi.

1.3

Requirements for compressed air supplied from

the compressor

• FA Pressure Conditioner can only be connected to a compressor which

supplies air at an oxygen concentration of 20 – 22 % vol.

• The carbon dioxide concentration must not exceed 500 ppm and the

carbon monoxide concentration must not exceed 15 ppm.

• The maximum concentration of water in the air may be 50 mg/m3 at

the rated pressure of 1 – 20 MPa. The humidity of the supplied air must

be controlled to prevent the unit from freezing.

1.4

Manufactured by

Manufactured for and on behalf of Kemppi Oy by:

CleanAir Ltd.

PRECONDITIONS FOR USE

Before you can use the system correctly and safely, you must fully

understand all of the following precautions.

• It is forbidden to use the unit in explosive environments.

• The system may only be used in environments where the probability

of damaging the supply hose is small and the user’s movement is not

limited.

• If the unit is used in environments with high temperatures, the supply

hose must be resistant to such effects.

• During an extreme work load, the pressure in the hood may reach

negative values and the user may feel air deficiency. In such case the

protection of air passages is reduced.

• In the FreshAir system it is forbidden to use oxygen-enriched air or

oxygen. There is a risk of explosion.

• If another accessory apart from FreshAir (e.g. a spray gun) is connected

to the compressed air supply, the user must make sure that a sufficient

air flow to the hood is secured even at the maximum air consumption

by this accessory.

• Before every use of the unit, check that the air flow is higher than the

minimum value specified in the technical parameters.

• If the unit stops supplying air for any reason, the user must leave the

contaminated area immediately.

• The unit, in a combination with a welding helmet or a hard hat, is

FreshAir Pressure Flow Control / Conditioner