Colasit CDVA 400 Manuel d'utilisation - Page 12

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Operating instructions

To operate the fan, we recommend the production of process instructions. These documents are intended to

simplify repetitive workflows, reduce the risk of incorrect operation and are a valuable aid for training and

when personnel changes occur.

If the fan must be qualified, process instructions are an absolute prerequisite.

You will find important instructions on how to produce process instructions in various chapters of this

operating manual.

To help ensure the safe operation of the fan, COLASIT offers the service of reviewing

process instructions prepared by the operator

Logbook

For your own safety and as an aid to personal responsibility, we recommend the keeping of a logbook for the

entire period during which the fan is in service.

All events should be recorded in the logbook.

In case of damage and also in case of an accident, this document is the first source of information.

For example, enter the date and your signature:

Start and end of a work cycle

Special events, even if they do not concern the fan itself (e.g. power failure, alarm)

Change of supervision staff (e.g. in case of shift operation),

Repairs carried out and spare parts installed,

Putting out of operation,

Special instructions,

etc.

Disposal

Before disposing of plastics and other components (complete or as broken parts), please clean them as

necessary to avoid any danger to the environment.

Dispose of the components properly. Instruct a waste disposal company to do this or return them to us for

disposal.

Troubleshooting

If faults occur, we recommend you identify and clear them using the following table.

If the fault cannot be cleared, please contact our customer service department.

Fault

Fan not running smoothly

Fan output too low

Page 12

TD-000 812-E

Edition 02/2023, Subject to alteration

Possible causes

Impeller imbalance

Impeller caked up

Material corrosion on impeller due

to aggressive conveyed medium.

Impeller deformed due to high

temperature.

Incorrect rotation direction of

impeller

Pressure losses in ducts too high

Restrictors not or only partly open Check opening on site

Remedy

Rebalance by specialist company

Clean carefully rebalance if

necessary

Consult the manufacturer

Consult the manufacturer.

Install new impeller.

Check bearings

Change rotation direction

Change duct arrangement

COLASIT AG

Plastics construction

CH-3700 Spiez

Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61