Safety instructions

Do not use the unit for “purposes other than those for which it was intended” under any circumstances.

The installation may only be carried out by a qualified person, as described in these instructions. → Qualification of installation, cleaning and maintenance staff

Danger of electric shock.

  1. Whenever working on the unit, release the supply current circuits, secure to prevent them from switching on again and ensure the unit is de-energised.
  2. Attach a clearly visible warning sign.
  3. Ensure that there is no explosive atmosphere.

Risk of explosion if the cables are incorrectly inserted into the terminal box.

Degree of protection is not guaranteed.

  1. Ensure degree of protection by correctly inserting the cables into the terminal box.
  2. Cable screw connections must comply with standard EN 60079-1 (Ex “d”).

Explosion hazard when operating with unit not fully mounted and if air inlet or outlet is not correctly protected.

  1. The fan may only be operated if the unit is fully mounted and with the protective devices fitted (in accordance with EN 13857) for the air channel.
  2. Ensure that foreign bodies cannot be sucked into the unit and ducts.

Explosion hazard due to incorrect adjustment.

The rotating parts of the unit were adjusted in the manufacturer’s factory.

  1. The unit must not therefore be taken apart. The temporary removal of the terminal box cover during unit installation is the only exception to this restriction.

Risk of explosion/risk of injury due to incorrectly mounted or falling unit.

  1. Only mount on walls/ducts with sufficient load-bearing capacity and sufficiently dimensioned mounting material.
  2. Mounting material is to be provided by the customer.
  3. During installation, do not allow people to stand under the installation location.