INVENTOR u-match on/off, Service Manual

Page: 56 / 163

U-MATCH AIR CONDITIONERS INSTALLATION
53
Figure 1-1-12
No. Designation No. Designation
1 Hanger rod 6 Transition duct
2 Air return duct 7 Air supply duct
3 Canvas duct 8 Air diffuser
4 Return air shutter 9 Connector of air diffuser
5 Air outlet
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.