197
Slim Duct Type
Indoor Unit
Installation of air-inlet grille
The angle of air-inlet grille should be parallel with that of
air inlet direction, otherwise it will cause more noise. As
shown in the gure on the right.
Installation of Duct Pipe of Indoor Units:
1. Installation of the air blowing pipe:
With a square blast pipe, the bore shouldn't be less than
the sizes of air outlet pipe.
2. Installation of the air return pipe: Connect one side
of the air return pipes to the air return port of the indoor
units with rivets, with the other side connected to air
return shutter, as shown in Fig.1.
3. Heat Preservation of Blast Pipes: Heat preservation
lays should be provided for air blowing & return pipes.
Paste glue nails on the blast pipes and attach thermo
wool, which covered by a layer of silver paper, x it with
glue nail cover, and then seal the joint with silver paper.
Selection of fan outlet (when a high-performance lter is used)
The fan has red and white terminals. Its air outlet is set to the standard before delivery. If a high-performance lter
or other optional devices is used to increase static pressure, it is required to change the connection of connector on
the side of control enclosure as shown in the following.
Static pressure range Unit: Pa
Air return shutter
Air return pipe
Indoor unit
Revit
Galvanizing plate
Thermo Wool
Glue nail cove
Rubber belt
Silver
paper
Glue nail
C
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