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Multi Variable Air Conditioners Fresh Air Series Indoor Unit
14
Fig 4.3.11
4.4 Installation of Air Duct
NOTES!
①.
There should be insulating layer on air-out duct, air-return duct and fresh air duct to
avoid heat loss and moisture. Adhere a nail on the air duct and then add thermal
sponge with a layer of tin. Fasten it with a nail cover and then seal the junction with tin
tapes; You can also use other materials that have good insulation quality.
②.
Each air-out duct and air-return duct should be fixed on a pre-made board with iron
frame. The junction of air duct should be well-sealed in order to prevent air leakage.
③.
The design and construction of air duct should comply with national requirements.
④.
The edge of air-return duct is suggested to be more than 150mm away from the wall.
Add afilter to the air-return opening.
⑤.
Please consider noise-damping and vibration damping for the design and construction
of air duct. Besides, noise source must be away from people. For instance, do not
have the air-return opening installed on top of the user (offices, rest area, etc.).
4.4.1 Installation of Air-out Duct
(
1
)
Installation of the Rectangular Duct
Fig 4.4.1
No.
Name
No.
Name
1
Hanger Rod
5
Static Pressure Box
2
Fresh Air Duct
6
Main Supply Air Duct
3
Canvas Duct
7
Supply Air Outlet
4
Fresh Air Inlet
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