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. ERM ... Ex e, ERM ... Ex t: Transport fan to installation location. Note safety instructions and data in the previous chapter.

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

    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. If mounting with FUM mounting foot: Mount suitable mounting foot on fan housing with the self-cutting tapping screws provided (do not use screws near the impeller). Any installation position can be selected. Make sure that there is free access to terminal box at the installation location.
  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. ERM 22 Ex e, ERM 22 Ex t: If reducing to 200 mm, fit the reducer [3] between the fan and ventilation duct or flexible cuff.

  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 SG..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.