burrs from getting into the pipe.
pipe and outdoor valve;
install the union nut on
the pipe.
union pipe
pipe
C: Put on suitable insulating pipe 
Remove the burrs with shaper and prevent the 
smooth surface
improper expanding
the length is equal
uneven
thickness
leaning
damaged
crack
surface
Remove the union nut on the indoor connection
Expand the port with expander.
expander
pipe
hard
mold
●
A(mm)
Max Min
Φ6 - 6.35(1/4")
1.3 0.7
1.6 1.0
Φ12-12.7(1/2")
1.0
Φ15.8-16(5/8")
1.8
2.4 2.2
Outer diameter
(mm)
●
B: Remove the burrs
D: Put on the union nut
●
●
E: Expand the port
●
F: Inspection 
Check the quality of expanding port. If there is 
shaper
downwards
pipe
Φ9 - 9.52(3/8")
21
NOTICE
Working temperature range
43/26
Indoor side
DB/WB(°C)
Outdoor side
DB/WB(°C)
32/23
24/18
Maximum
27/-
cooling 
For some models:
For some models:
heating 
Maximum
NOTE
●
NOTE
●
50/2632/23
27/- 30/18
●
Indoor side
"A" is different according to the diameter, please refer 
to the sheet below:
DB/WB(°C)
any blemi
sh, expand the port again according to 
the steps above.
Outdoor side
DB/WB(°C)
Maximum
GWH12AGC-K6DNA1F/I(LC)
GWH09AGC-K6DNA1F/I(LC)
GWH18AGD-K6DNA1E/I(LC)
NOTE
cooling 
Maximum
●
heating 
GWH12AGC-K6DNA1F/I(LCLH)
GWH09AGC-K6DNA1F/I(LCLH)
GWH18AGD-K6DNA1E/I(LCLH)
NOTE
The operating temperature range (out door tempera-
ture) for Low-temperature cooling only unit is -15°C
~50°C ; for heat pump unit is -15°C~50°C.
The operating temperature range (out door tempera-
ture) for Low-temperature cooling only unit is -15°C
~50°C ; for Low-temperature heat pump unit is -25°C
~50°C.
The operating temperature range (outdoor tempera-
ture)  for  cooling  only  unit  is  18°C~43°C;  for  heat 
pump unit is -15°C~43°C.
NOTE
●
GWH24AGE-K6DNA1A/I(LCLH)
The operating temperature range (outdoor tempera-
ture)  for  cooling  only  unit  is  -15°C~43°C;  for  heat 
pump unit is -15°C~43°C.
The operating temperature range (out door tempera- 
ture) for Low-temperature cooling only unit is -15°C 
~43°C ; for Low-temperature heat pump unit is -25°C 
~43°C.