Airwell DVHA Serie Manuel D'utilisation Et D'installation page 20

Installation Procedures
7. Cautions in Installation of Air Return Pipe & Exhaust Pipe
It is recommended to use the blast pipes, which can be anti-condensation and absorb sound,
(purchased at local shops)
Complete the installation of the blast pipes before fitting up the suspended ceiling.
Heat insulation should be made for the blast pipes.
The special exhaust port should be arranged at the place where
the air is distributed evenly.
An inspection hole should be left on the surface of the ceiling
for future maintenance.
8. Connection of return air duct (setting back air return
opening when leaving factory)
Remarks:
ln installation, you can select the lower air return or back air
return by adjusting the location of air inlet
frame. Air return from bottom will influence the unitnoise,so we
suggest use rear returninstallation.
air outlet electric
control box
pipe
9. Install outlet flange
Install outlet flange basising the needs, the outlet flange is standard component, bolts are laied
in accessories box.
Note: You can select not to connect with the flange. Instead of it, you can use the round plastic
air outlet (purchased by user)
indoor unit
return
drainpipe
air pipe
ceiling
1005
298
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special exhaust port
positioning with bolt
blast pipe
air
air
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