Installation Instructions
7
4
3
2
5
1
8
7
6
9
Fig.8
No.
Name
No.
Name
1
Hanger
6
Transition Duct
2
Return Air Duct
7
Air Supply Duct
3
Canvas Duct
8
Diffuser
4
Return Air Louver
9
Diffuser Joint
5
Air Supply Outlet
Table 3
c. Installation Steps of the Round Air Supply Duct
1) Preinstall the outlet of the round duct on the transition duct and then fix it by the self-tapping screw.
2) Place the transition duct to the air outlet of the unit and fix it with rivet.
3) Connect the outlet to the duct and then tighten them with tape. Other installation details are not
covered herein.
CUATION
！
① .
The maximum length of the duct means the maximum length of the air supply duct plus the maximum
length of the return air duct.
② .
For the unit with the auxiliary electric heating function, if the round duct is to be adopted, then the
straight length of the transition duct can not be less than 200mm.
③ .
The duct is either rectangular or round and connected with the air inlet/outlet of the indoor unit.
Among all air supply outlets, at least one should be kept open. As for the round duct, it needs a transition duct
of which the size should match with the air supply outlet of the unit. After the fitting of the transition duct, it is
the turn of the round duct, which is better to be kept 10 meters far away from the corresponding diffuser. The
standard accessories supplied by
C&H
is the transition duct 200mm long and round air outlet φ200, however,
those of other specifications can be purchased.
6 Drawings of the Air Supply Outlet and Return Air Inlet
capacity:2.5~7.1kW
Fig.9 Air Supply Outlet Fig.10 Return Air Inlet
