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Circuit-breakers interrupt the current supply to the corresponding current consumer in
cases of increased motor current and short-circuits. Circuit-breakers can be waived,
depending on the plant & components and requirements of the standards.
A level indicator monitors the level of the user medium in the tank. In cases of insufficient
medium, the refrigeration unit is switched off until the level of medium has been restored.
In own-refrigeration units there is a current flow monitor to monitor the medium flow. If the
amount of flow falls below a certain value then the refrigeration unit is switched off.
The instrumentation unit monitors certain medium temperatures. Depending on the setting,
the refrigeration unit is switched off in cases of too-high or too-low values. For further
details see the circuit diagram.
9. Putting into Operation and Operating
A documented function, performance & safety acceptance procedure is carried out during
the course of manufacture.
The refrigeration unit is thoroughly inspected and tested in all its certified operative
elements.
9.1 Safety checks before putting into operation
A complete safety inspection is carried out on the unit before leaving the factory for
delivery.
Due to a change in the operational location, a safety, health and environment check on
location at the customer is recommended before putting into operation.
The room chosen for the aggregate has to have sufficient emergency exits. If this is not the
case, then a corresponding amount of room space according to DIN EN 378 has to be
available, so that in case of a cooling agent leakage there is no danger to health caused by
the leakage of cooling agent. This is best solved through consultation with the
manufacturer.
9.2 Safety checks during operation
The owner/operator is obliged to maintain documentation of safety-related inspections for
the refrigeration aggregate (available through the supplier). It is to be ensured that such
details are available to a technical expert in case of repairs and repeat inspections. A
suitable operating manual is available from the manufacturer.
In accordance with EN 378, regular inspections by suitable capable persons are prescribed
in order to maintain the minimum regulations regarding health & safety for the refrigeration
aggregate, the carrying out thereof being in the hands of the owner/operator. These can be
entered into the operating manual available from the manufacturer. The operating manual is
compiled in accordance with legal requirements.
9.3 Training and performance
Содержание Typ BR 058-31
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