Unit installation

  1. Check unit for transport damage.
  2. Prepare installation location for duct, wall or foot mounting: Lay ventilation duct or flexible duct. If mounting on wall, make sure there is a level support surface.
  3. Lay a permitted power cable to the installation location. Use a connection cable suited to the unit type.

  4. Risk of cuts from metal housing plates with sharp edges.

    1. Wear personal protective equipment (cut-resistant gloves) for installation.
  5. EZQ / EZS 20/4-E Ex e / t: Transport fan to installation location. Note safety instructions and data in the previous chapter.

  6. Explosion hazard/risk of injury from an incorrectly mounted fan or a falling fan.

    1. Only mount on walls/ceilings 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.

  7. Risks of leakages if unit is not sealed tightly enough.

    Firmly screw fan down at all flange holes.

  8. Install fan and firmly screw fan down to wall at all flange holes [X] (4x). Mounting material of the sufficient size should be provided by the customer. Note rotation direction and air flow direction air direction arrows on unit sticker.
  9. Check air gap between impeller and housing after installation with the gauge provided Fig B.

  10. Risk of explosion when operating without protective device, should foreign bodies fall or be drawn into the air duct.

    Risk of death due to spark formation.

    1. Be sure to fit any free air inlet/outlet with a protective device that meets the requirements of EN 13857 and is suitable for Ex areas, e.g. with MAICO protective grille SGM ... Ex (IP 20 degree of protection according to EN 60529). When using non-Maico products, an ignition hazard assessment must be carried out.
  11. If the air inlet or outlet is not covered, mount a permitted protective grille, e.g. MAICO SGM-Ex protective grille in front of the unit Figure C.
  12. Ensure a sufficient fresh air supply intake.
  13. Fit suitable insulation, sound-absorbing and installation materials.