Cassette Type Air Conditioner Unit
7
(7).
Provide the space shown in Fig. 3.2, so that the air flow is not blocked. Also for
efficient operation, leave three of four directions of peripheral constructions open.
＞
50
0m
m
(1
-2
/3
fee
t)
＞
20
00
m
m
(6
-5
/9
fee
t)
＞
50
0m
m
(1
-2
/3
fee
t)
＞
50
0m
m
(1
-2
/3
fee
t)
＞
500mm
(1-2/3feet)
＞
2000mm
(6-5/9feet)
＞
10
00
m
m
(3
-2
/7
fee
t)
Fig. 3.2
3.3 Connection Pipe Requirement
CAUTION!
The maximum length of the connection pipe is listed in the Table below. Do not place the units between
which the distance exceeds the maximum length of the connection pipe.
Table 3.4
Item
Model
Size of Fitting
Pipe(Inch)
Max. Pipe Length
(m)
Max. Height
Difference
between Indoor
Unit and Outdoor
Unit (m)
Drainage
pipe(Outer
Diameter × wall
thickness) (mm)
Liquid
Gas
GKH18K3HI
GUHN18NK3HO
1/4
1/2
15
15
φ
26×3
GKH24K3HI
GUHN24NK3HO
3/8
5/8
15
15
φ
33×4
GKH30K3HI
GUHN30NK3HO
3/8
5/8
30
15
GKH36K3HI
GUHN36NM3HO
3/8
3/4
30
15
GKH42K3HI
GUHN42NM3HO
1/2
3/4
30
30
GKH48K3HI
GUHN48NM3HO
1/2
3/4
30
30
GKH60K3HI
GUHN60NM3HO
1/2
3/4
30
30
φ
32×2
The connection pipe should be insulated with proper water-proof insulating
material.
The pipe wall thickness shall be 0.5-1.0 mm and the pipe wall shall be able to
withstand the pressure of 6.0 MPa. The longer the connecting pipe, the lower the
