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The air ducts in a second room connection have an effect on the airflow balance of the ventilation unit. The
balance adjustment must be conducted in accordance with the system characteristic curve by a skilled technician.
3.2.4
Installing the ventilation unit
Prior to starting work, ensure that the main power supply is disconnected!
Match the required load capacity of the respective mounting surface (dead weight of the ComfoAir 70 is 59 lbs (22
kg)) and the mounting options using wall anchors and screws of sufficient length. The supplied mounting material
should only be considered as a suggestion.
The wall mounting pipe must be installed prior to installation of ventilation unit per the instructions included with
this accessory. See section 4.2.5.4
Use the mounting template as an aid for the mounting holes. Prior to installing the unit, remove the upper and
lower canopies. Unplug the plug connection for the ribbon cable on the internal control panel.
A sensor system module (optional accessory) must be fitted in the unit before the unit is installed!
Proceed as follows for the installation of the ventilation unit:
1. Pull the upper canopy upwards and out of the bracket and remove the right screw and loosen the left screw.
2. Pivot the lower canopy to gain access to the back of the control panel, and while wearing an ESD band, pull the ribbon cable
carefully off the board of the internal control panel, by gripping the red plug.
3. Remove the left screw and set the lower canopy aside.
4. Remove the wall bracket from the EPP housing.
5. Drill the four mounting holes, in accordance with the mounting template, for attaching the wall bracket, and insert the supplied
or, depending on the wall construction, relevant mounting hardware or fasteners (wall anchors) into the holes.
Should the location for the mounting holes not be available, the holes can be transferred afterwards onto the inner
wall surface by means of alignment of the wall bracket in relation to the pipe axis per the mounting template on
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