DC Inverter U-match Series Duct Type Unit
25
4.6.2 Installation of the Supply Air Duct
(1) Installation of the Rectangular Duct.
Fig. 4.34
Table 4.6 Installation of the rectangular duct
No.
Name
No.
Name
1
Hanger
5
Filter
2
Air Intake Pipe
6
Main Air Supply Pipe
3
Canvas Air Pipe
7
Air Supply Outlet
4
Air Intake
--
--
①
The maximum length of the duct means the maximum length of the supply air duct plus the
maximum length of the return air duct.
②
The duct is rectangular and connected with the air inlet/outlet of the indoor unit. Among all
supply air outlets, at least one should be kept open.
Bottom Return Air Installation only for the 18k Units.
(2) The default installation location of the rectangular flange is at the back and
the return air cover plate is at the bottom, as shown in Fig. 4.35.
Fig. 4.35
