U-Match Series Duct Type Unit
18
the outside of connection pipe should be added with a layer of insulating cotton to
protect it from mechanical damage during installation, maintenance and
transportation.
Item
Model
Size of Fitting Pipe
(Inch)
Maximum
pipe
length(m)
Biggest drop between
indoor and outdoor
units (m)
Liquid
Gas
GU50P/A1-K
1/4
1/2
30
15
GU50PS/A1-K
GU71P/A1-K
3/8
5/8
30
15
GU71PS/A1-K
GU85P/A1-K
3/8
5/8
30
15
GU85PS/A1-K
GU100PH/A1-K
3/8
5/8
30
20
GU100PHS/A1-K
GU125PH/A1-K
3/8
5/8
50
30
GU125PHS/A1-K
GU140PH/A1-K
3/8
5/8
50
30
GU140PHS/A1-K
GU160PH/A1-K
3/8
5/8
50
30
GU160PHS/A1-K
Connection pipe should adopt water-proof insulating material. Its wall thickness
should be 0.5-1.0mm and the pipe wall should be able to withstand 6.0MPa. The
longer the connection pipe is the worse cooling and heating performance it has.
When the drop between indoor and outdoor units is larger than 10m, an oil
return bend should be added every 6 meters.
The requirement on the adding of oil return bend is as below:
Summary of Contents for U-Match GU100W/A1-M
Page 52: ......
