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Idiomas disponibles
Installation Procedures
6.Cautions in lnstallation of Air Return Pipe & Exhaust Pipe
air outlet direction
flexible
connections
shall be used
betweenthe
Top view
unit and the
air duct
air return direction
Note: The air tubing must be insulated to prevent condensation.
lt 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.
7.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 return
installation.
8. 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)
side fresh air inlet of the unit
fresh air inlet in the middle
of the return duct
G
ceiling
11
special exhaust port
positioning with bolt
air
air
Size
G
(mm)
Model
1392 165
DVFA-140N-01M22
t
t
blast pipe
e
H
(mm)
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