18
Installation Procedure
English
Ins
tallation Pr
oc
edur
e
Indoor Unit
Outdoor Unit
Liquid side stop valve(service port)
Gas side stop valve(service port)
Balance
Ref
Vacuum
pump
Calculating the quantity of refrigerant to add
The quantity of additional refrigerant is variable
according to the installation situation. Thus, make sure
the outdoor unit situation before adding refrigerant.
This operation can only be performed by a qualified
refrigeration specialist.
When installing the outdoor unit only
Model
Interconnection pipe length (m)
0 to
30
30 to
40
40 to
50
50 to
60
60 to
70
70 to
75
AC071KXAPEH
AC071KXADEH
+25 g/m over 5 m
AC100KXAPEH
AC100KXADGH
0
+45 g/m over 30 m
AC125KXAPEH
+45 g/m over 30 m
AC140KXAPEH
AC140KXADGH
+45 g/m over 30 m
Step 9 Performing the gas leak test
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect leaks of the brazed fittings, it is the
responsibility of the installer to pressurize the whole
system with nitrogen (using a cylinder with pressure
reducer) at a pressure above 4 Mpa (gauge).
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into
the system and create vacuum. After opening valves
check leaks using a leak detector for refrigerant R-410A.
Once you have completed all the connections, check for
possible leaks using leak detector specifically designed
for HFC refrigerants.
A(Gas)
B(liquid)
• The designs and shape are subject to change
according to the model.
360_AC_Outdoor_AU_Eng_EN.indb 18
2016-09-20 오후 8:00:33
