Connection Pipe Requirement - Gree GUHN18NK3HO Owner's Manual

Cassette Type Air Conditioner Unit
Provide the space shown in Fig. 3.2, so that the air flow is not blocked. Also for
(7).
efficient operation, leave three of four directions of peripheral constructions open.

3.3 Connection Pipe Requirement

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.
Item
Model
GKH18K3HI
GUHN18NK3HO
GKH24K3HI
GUHN24NK3HO
GKH30K3HI
GUHN30NK3HO
GKH36K3HI
GUHN36NM3HO
GKH42K3HI
GUHN42NM3HO
GKH48K3HI
GUHN48NM3HO
GKH60K3HI
GUHN60NM3HO
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
Size of Fitting
Pipe(Inch)
Max. Pipe Length
Liquid Gas
1/4 1/2
3/8 5/8
3/8 5/8
3/8 3/4
1/2 3/4
1/2 3/4
1/2 3/4
＞ 2000mm
Fig. 3.2
CAUTION!
Table 3.4
Max. Height
between Indoor
(m)
Unit and Outdoor
15
15
30
30
30
30
30
7
(6-5/9feet)
Difference
pipe(Outer
Diameter × wall
thickness) (mm)
Unit (m)
15
15
15
15
30
30
30
＞ 500mm
(1-2/3feet)
Drainage
φ 26×3
φ 33×4
φ 32×2