– 30 –
Thermal insulator with sticking material
(50mm-width, 6mm (t))
Aluminum tape (Seal : 50mm-width)
Aluminum tape (Seal : 50mm-width)
Square duct board
(25mm-thickness, 64kg/m³ or equivalent)
Thermal insulator with sticking material
(50mm-width, 6mm-thickness)
Thermal insulator
(25mm-thickness, 24kg/m³ or equivalent)
Screws (6 pieces)
Screws (6 pieces)
Flange (procured locally)
Indoor unit side
Thermal insulator at indoor unit side
(Stuck already at shipment from the factory)
Fit to the arro
Fit to the arrow
w
direction by pushing.
Fit to the arrow
direction by pushing.
Fit to the arro
Fit to the arrow
w
direction by pushing.
Fit to the arrow
direction by pushing.
Seal/thermal insulator with sticking material
(25mm-width, 6mm (t))
Seal/thermal insulator with sticking material
(25mm-width, 6mm (t))
Thermal insulator at indoor unit side
(Stuck already at shipment from the factory)
Attach by pushing to the arrow direction.
(Outside corner direction)
Round duct
Flange
Fit the seal/thermal insulator (25mm-width, 6mm-thickness)
by pushing to the arrow direction so that no clearance can
be found between the flange and the round duct.
Cover for return air
[Square duct]
Fig. 9-4-10
[Round duct]
Fig. 9-4-11
9-4-4. Caution for Safety
1. Return air side
When you do not connect the duct to the return air side (using steel and others), apply a protective measures
so that your hands or fingers do not directly touch with the motor or other electric parts.
1. Return air from rear side
1) Follow the procedure same as that for the supply air side.
Flange mounting
→
Square duct making
→
Connecting work
2. Return air from lower side
1) Remove the cover for return air at the lower side of the indoor unit, and attach the cover to the opening
port at the rear side of the indoor unit.
Fig. 9-4-12
2) Mount the flange to the place from where the cover for return air was removed.
3) Mount the square duct.
4) Arrange the flange and the square duct.
