Infiniton SSDC-4630 Manual De Instrucciones página 27

4.7 Production and installation of the air duct
1. Production of the air duct
The air duct can be produced refer to the relevant requirements in metal air duct section of GB50243-97
specification.
2. The installation of new air duct
1) Entry of new air duct can be directly selected at a place of clean, no dust pollution. Rain louver and
filter must be installed at the outdoor air intake. Air volume control valve is recommended to be installed
at new air duct section; It's appropriate if the fresh air accounts for 0 ~ 15 % of the total air volume, shown
in figure 9:
Fresh air
2)Installation of air duct
Rectangular air intake duct can be directly connected with the outlet of the indoor unit, and connected
with the diffuser, with a total length no more than 6m. The velocity of each air outlet at diffuser should be
adjusted to basically the same in order to meet the indoor air conditioner requirements, shown in figure
3) Installation of return air duct
Connect the air return duct to the return air intake of indoor unit with a rivet, and the other end is
connected to indoor return air intake, a short soft air duct in material of fireproof canvas can be made,
and be penetrated and connected with 8 # wire to form a fold shape, which can be freely adjusted
according to the indoor ceiling height, as shown in figure 21:
4.Installation guide
Air conditioner
Return air
Figure 19
Figure 20
22
Air intake
Rivet holes