Bosch 6000 Technical Information download pdf (Page 15)

Safety instructions

1-8

1070 080 059-101 (2001.04) GB

CAUTION

Damage to property through inappropriate or insufficient cooling of

the medium-frequency inverters!

Water-cooled medium-frequency inverters may only be operated

when the cooling water circuit is active! Condensation on water-car-

rying components must be prevented.

Damage to property through insufficient water quality in the cooling

water circuit!

Deposits in the cooling system may reduce the water flow, thus im-

pairing the performance of the cooling system with time.

Therefore, you should ensure that your cooling water has the follow-

ing properties:

D pH value :7 to 8.5

D Degree of hardness D

max

: 10 German degrees

(1 German degree = 1.25 British degrees = 1.05 US degrees =

1.8 French degrees)

D Chlorides : max. 20 mg/l

D Nitrates : max. 10 mg/l

D Sulfates : max. 100 mg/l

D Insoluble substances : max. 250 mg/l

Tap water usually meets these requirements. However, an algicide

should be added.

L Make sure that all contact surfaces are bright, i.e. free of paint, plastic coat-

ing or dirt/oxidation.

L Mount the device in a vertical position.

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Bosch 6000 Technical Information Page 15