Installation in ducts

CAUTION: Risk of cuts from metal housing plates with sharp edges. Use personal protective equipment (cut-resistant gloves) for installation work.

NOTICE: Risks of leakages if unit is not sealed tightly enough. Screw the fan firmly to the duct system at all flange holes. Fit suitable insulation, sound-absorbing and installation materials.

If necessary, install additional accessories, e.g., a GVI housing extension, an ADI suction nozzle, RSI duct silencer, RSKI duct silencer with baffle or GPI vibration damper.

  1. For wall/ceiling attachment, fit FUI mounting feet.
  2. If necessary, install a GFI counter flange or GSI counter socket on the two ducts.
  3. Transport the fan to the installation site → chapter .
    Recommendation: Attach suitable chains/ropes/lifting gear all around the housing and carefully transport the fan to the installation site using a crane, for example. NOTICE: The fan must not be deformed/warped during transport as this can lead to imbalance of the impeller. Observe the details in Transport, storage and the safety instructions supplement.
  4. Screw the DAR fan tightly to the duct system using the ELI flexible couplings. Screw all flange holes. Observe the tightening torques. Ensure seal integrity.
  5. With a free inlet, also fit an SGCI or SGRI protective grille as protection against accidental contact and drawing in.
  6. Fit suitable insulation and sound-deadening material.