Gree GUHN36NM3HO - Specification of Connection Pipe

U-Match Series Service Manual
62
When the height difference between the indoor unit and outdoor unit is larger than 10 meters, an oil
bend should be employed for every 6 meters.
Oil bend
Oil bend
Indoor
Outdoor
6m
Figure 3-2-5
3.2 Specification of Connection Pipe
Table 3-2-4
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
GUHN18NK3HO
1/4
1/2
15
15
Φ16X2.0
GUHN24NK3HO
3/8
5/8
15
15
Φ16X2.0
GUHN30NK3HO
3/8
5/8
30
15
Φ16X2.0
GUHN36NM3HO
3/8
3/4
30
15
Φ16X2.0
GUHN42NM3HO
1/2
3/4
30
30
Φ16X2.0
GUHN48NM3HO
1/2
3/4
30
30
Φ16X2.0
GUHN60NM3HO
1/2
3/4
30
30
Φ16X2.0
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 cooling and heating effect performs.