Toshiba RAV-SM2242DT-E Installation Manual page 8

Diagrams for making connecting flanges
The connecting flange (Incl. the fixing screw) is not supplied to the indoor unit. When the connecting flange is
necessary, produce them in locally.
Drawing figure is as follows. (Material: Galvanized steel plate, thickness of 1.6 mm)
<Air discharge port flange>
65 250
25
<Air intake port connecting flange>
65 250
25
13-EN
1130
250 250 250 65
1080
25
10-Ø8 hole
1130
250 250 250 65
1080
25
10-Ø8 hole
– 7 –
Duct design
(Unit: mm)
1. In order to prevent short circuits, design the duct installation, so that the intake and discharge openings are not
adjacent to each other.
2. The indoor unit does not have a built-in air filter. Make sure to set up the filter chamber etc. and install the air
filter (Locally procured). If no air filter is installed, the heat exchanger will be blocked by dust, which may cause
the malfunction of air conditioner or the water leakage.
<Duct installation example (First floor)>
Duct hose (with heat insulation)
to ground floor
NOTE
All duct connection between units except outdoor unit must be procured and enforced locally.
Air discharge chamber
(with heat insulation)
Air discharge port
connecting flange
Flexible duct hanging band
Indoor unit
Electrical control
box
Air discharge port
Air discharge port
Ceiling
Check port or carrying
Check port cap
in port (600 x 600)
High efficiency filter
inserting port
Pre filter
inserting port
Air intake port
connecting flange
Filter Air intake
chamber chamber
Duct hose
from ground floor
14-EN