MIUM0018_REV06_ QRCE_20180312-MIUM-ENG-AQ AQ_001523_02_0721
16
ENG
4.5.1 Air duct connection layout (multiport plenum PLM)
•
PLM plenum is provided with n°10 possible air connections of which n° 6 closed by insulated plates (A) fixed by
selfdrilling screws, as shown on
fig. 10a
.
•
in order to get the desired air inlet/air outlet layout, move opportunely and block again the plates on the
connections really not used; do this before positioning the plenum.
4.6 Air duct connections
•
The air ducts must be correctly sized, in order to match unit external static pressure at duty airflow rate; take also
into account the air pressure drop of possible options.
•
In order to prevent water condensation and to reduce noise to the rooms, it is strongly suggested to install
insulated air ducts or provide a duct insulation.
•
Consider the need to install sound attenuators depending on unit sound level and the required acoustic comfort
of the room to be treated.
•
Between unit and air ducts always install suitable flexible joints; anyway, the electrical continuity must be ensured
between air ducts (if metal type) and unit by a ground cable.
•
Air duct weight shall not load the unit or its possible external sections.
IMPORTANT: DO NOT OPERATE THE UNIT IF FAN OUTLETS ARE NOT DUCTED OR NOT PROTECTED BY
SAFETY GRID.
Fig. 10a
