Step 10 Performing The Gas Leak Test; Step 11 Connecting The Drain Hose To The Outdoor Unit - Samsung AC***KX4D*H Series Installation Manual

When installing the outdoor unit only
Interconnection pipe length (m)
Model
0 to 30 to
30
AC071KX4DKH +20 g/m over 5m
AC090KX4DKH
AC100KX4DKH
AC100KX4DNH
0
AC120KX4DKH
AC120KX4DNH
AC140KX4DKH
AC140KX4DNH

Step 10 Performing the gas leak test

LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before
recreating the vacuum and recirculating the R-410A, 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.
40 to 50 to 60 to 70 to
40 50 60 70 75
+50 g/m
over 30 m
+50 g/m
over 30 m
+50 g/m
over 30 m
+50 g/m
over 30 m
+50 g/m
over 30 m
'+50 g/m over 30 m
'+50 g/m over 30 m
• The designs and shape are subject to change
according to the model.
Step 11 Connecting the drain hose to
the outdoor unit
When using the air conditioner in the heating mode, ice
may accumulate . During de-icing (defrost operation),
the condensed water must be drained off safely.
Consequently, you must install a drain hose on the
outdoor unit, following the instructions below.
1 Make space more than 80 mm between the bottom of
the outdoor unit and the ground for installation of the
drain hose, as shown in figure.
2 Insert the drain plug into the hole on the underside of
the outdoor unit.
3 Connect the drain hose to the drain plug.
A(Gas)
B(liquid)
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English