Rotenso ANERU Series, Service Manual

Page: 318 / 552

 3. IDU Installation-Duct 
NOTE:
1. Do not put the connecting duct weight on the
indoor unit.
2. When connecting the duct, use an nonflammable
canvas tie-in to prevent vibrating.
3. When connecting duct, install in place prone to
takedown for maintenance.
4. Change the fan motor static pressure corresponding to
external duct static pressure.
5. If installed in place like meeting room where noise is
easy to be perceived, design isolation booth and internal
duct underlayer to muffle the duct system and weaken the
air encounter noise in the duct.
3.4 Adjust the air inlet direction(From rear
side to under-side.)
1. Take off ventilation panel and flange,
Air return flange
Ventilation panel
Bend the rear ventilation panel 90 degrees along the
dotted line into a descending ventilation panel.(some
models)
2. Change the mounting positions of ventilation panel and
air return flange .
Air return flange
Ventilation panel
3. When installing the filter mesh, fit it into the flange as
illustrated in the following figure.
or
Air return flange
Ventilation panel
NOTE: All the figures in this manual are for demonstration
purposes only. The air conditioner you have purchased may
be slightly different in design, though similar in shape.
3.5 Fresh air duct installation
Dimension :
Duct joint for fresh air
9-12k
Ø92mm(3.62”)
Ø113mm(4.45”)
18-60k
125mm(4.92”)
160mm(6.3”)