Toshiba RAV-SM2242DT-TR 88, n Diagrams for making connecting flanges, nDuct design, Unit: mm

Concealed Duct High Static Pressure	Installation Manual
n Diagrams for making connecting flanges	(Unit: mm)

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 outlet port flange>

			1130
65	250	250	250	250	65
12
		25	1080

394	370	25	344		25
	12			25		10-Ø8 hole

<Air inlet port connecting flange>

Concealed Duct High Static Pressure Installation Manual

nDuct design

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)>

Air outlet chamber		High efficiency filter
(with heat insulation)		inserting port
	Air outlet port		Pre filter
Flexible duct hanging band	connecting flange		inserting port
			Air inlet port
Duct hose (with heat insulation)	Indoor unit		connecting flange

Electrical	Filter	Air inlet
control box	chamber	chamber

– 88 –

430

40612

25

			1130
65	250	250	250	250	65
		25	1080

380

25

		Ceiling
Air outlet port	Air outlet port	Duct hose
		Check port or carrying
	Check port cap in port (600 × 600)
To ground floor		From ground floor

12 25 10-Ø8 hole

NOTE

All duct connection between units except outdoor unit must be procured and enforced locally.

– 13 – – 14 –