Sinclair ASGE-09A Service Manual page 57

U-MATCH AIR CONDITIONERS
No.
1
2
3
4
5
Note:
The above two diagrams show how back return air inlets are installed. Lower return air inlets shall be used
according to actual installation demands. The installation method is similar to the back return air inlets. Among all
air outlets, at least one keeps open. If circular duct is in use, air shall be supplied to rooms through circular flexible
insulating duct. Air supply duct and return duct shall be heat insulated.
2） Installation of fresh air duct (only limited to excessive pressure units with refrigerating output
over 6000W)
The fresh air battle, as shown in Figure 1-1-13(a), must be removed for mounting the fresh
air duct. If the fresh air duct is not in use, gaps around the battle shall be sealed by sponge.
Circular flanges are mounted for convenient connection of the fresh air duct, as shown in
Figure 1-1-14(b)
Ducts and circular flanges must be sealed and insulated sufficiently.
Fresh air must be filtered air.
(a)
3 ） Installation of air return duct
Square flanges at ex-factory shall be defaulted to installation at the back and the air return cover plate shall
be mounted at the lower, as shown in figure 1-1-14.
Designation
Hanger rod
Air return duct
Canvas duct
Return air shutter
Air outlet
Figure 1-1-13
Figure 1-1-14
No. Designation
6 Transition duct
7 Air supply duct
8
9 Connector of air diffuser
Round air duct
(b)
INSTALLATION
Air diffuser
56