FPZ SCL K07R MD-MOR Instructions page 30

9.3 FAULT CONDITION AND MAINTENANCE
Before starting routine maintenance on the unit, or for a fault, take the following safety measures:
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Disconnect the unit from the power supply via the main the switch.
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Place a sign: "DANGER! Maintenance work in progress." on the system control and the unit's control elements.
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Allow the unit to cool!
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Wait until the unit has completely stopped, i.e. that the impeller is not rotating, checking the electric motor fan.
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Ensure the absence of vacuum or overpressure in the unit and in the piping to be disconnected and that no fluid can escape from
the unit and/or system!
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Follow the maintenance instructions in this manual.
Danger due to rotating impellers: cutting or shearing.
The rotating impeller can be accessed through the openings of the body and cover of the machine, once the manifolds or blind flanges
are removed!
Never put hands or anything through these openings.
Danger due to electricity!
Improper behaviour can cause serious accidents!
Work on the electrical equipment must only be carried out by qualified and authorised electricians!
Before starting work on the unit or system, take the following precautions:
- disconnect the mains power;
- take steps to prevent the power from being reconnected;
- open the terminal box only after making sure the power is disconnected.
9.4 RESIDUAL RISKS
When designing the machines or systems on which the blower is to be installed, the following residual risks must be considered.
Danger due to hot surfaces!
In operation the unit may overheat, exposing the operator to contact with hot surfaces.
Do not touch the unit when in operation.
Before carrying out any operation after shutdown allow the unit to cool by waiting at least 20 minutes.
Danger due to rotating parts: electric motor cooling fan.
Although designed to reduce any danger, the machine has residual risks linked to the rotation of the fan.
Precautions to be taken:
- Do not wear loose fitting clothes
- Do not go near the machine with long and loose hair
Danger due to noise from the unit!
Some machines can produce high noise levels, even exceeding 80 dB(A).
The reference values are given in the specifications, which do not consider environmental reverberation.
Precautions to be taken:
Check the actual sound pressure of the machine in the place, and if necessary:
- Report the foreseen noise risk
- Arrange the use of PPE
- Insulate the place
10 FORESEEN USE
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FPZ side channel blowers / exhausters are designed to generate vacuum and overpressure and for conveying non-explosive, non-
flammable, non-toxic and non-aggressive gases and air in continuous duty in a non-explosive environment.
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They consist of a toroidal chamber; between the body and cover there is an impeller with radial peripheral blades.
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FPZ side channel blowers / exhausters are designed and built for use in industrial plants and are equipped with three-phase or
single-phase asynchronous bipolar electric motors in compliance with IEC 60034-1.
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