26-EN25-EN
– 13 –
Flange arrangement
Referring to the following dimensions, manufacture duct at the local site.
58 58
1316
200 200 200200 200 200
200 200 200200 200 200
41
41
58
1297
361
44
44
20
31.5
105.6105.6
44
343.2
383.6
Electrical control box
<Air outlet>
1430 (Unit external dimension)
1296 (Outside)
Hole for hanging bolt
324 (Outside)
89
1465 (Hanging bolt pitch)
45
21
99
477
810 (Hanging bolt pitch)
900 (Unit external dimension)
80
Screw holes for duct
mounting
(26-M5)
66
(4-Dia12×30)
(Unit external dimension)
Air outlet
P:100×11 = 1100
98
Air inlet
85
REQUIREMENT
If the air conditioner unit and the canvas joint are connected with the rivets, the fan and the refrigerating cycle
cannot be checked.
Be sure to use the flange as shown in the above and tighten it by the bolts.
(Fixing bolts M6 x 12 mm, locally procured)
7 Duct design
CAUTION
Be sure to apply heat insulation to the duct to prevent dewy condition.
If there is an incomplete duct work, the water leakage into the room may happen.
REQUIREMENT
y In order to prevent short circuits, design the duct work so that the intake and discharge openings are not
adjacent to each other.
y Install the filter chamber on the intake side of the indoor unit. Attach the long life prefilter and high-efficiency
filter to the filter chamber to remove dust. Send fresh air to the inside of the indoor unit and the area being air
conditioned.
y If no air filter is installed, dust will collect in the heat exchanger, which may cause the air conditioner to fail or
to leak.
y Be sure to set the duct at air intake side with descending inclination because the suction duct of the this unit
is exposed to outdoors and therefore rainwater, leaves and birds are easy to enter in if it is set horizontally.
Attaching wire netting and others to end of the suction duct is also recommended.
y Connect the duct so that the air intake sucks fresh air only.
Be sure to apply heat insulation for the duct to prevent dewing.
(Recommended material: Glass wool or foam polyethylene, Thickness: 25 mm)
y When welding the duct at the site, sparks may enter in the air filter or heat insulator.
To avoid spread of the fire, cover the duct with iron plate, etc.
y When penetrating metal lath, wire lath or metal plank with the metal duct, isolate the duct from the wall
electrically.
y Set the canvas ducts at air intake port and air supply port. It is to avoid conveyance of vibration, abnormal
resonance sound and also to make easy the disassembly of the main unit in service time.
y Connect the ducts so that the ducts do not weight on the main unit.
If connecting the ducts directly to the main unit, the duct vibration abnormal sound from the main unit may
happen, and also the filter and service panel cannot be detached.
y Be sure to fix the ducts by using the hanging bolts.
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