21English
Installation Procedure
Set up indoor quantity by key switch(K1, K2)
Press and hold K1 switch to enter the setting mode on the
number of the installed indoor unit : Check “A0” sign on
7-segment
- Press K2 switch to set the number of the installed
indoor unit :
Ex) If there are two indoor units, press K2 switch
twice, and check “A2” sign on 7-segment.
If there are three indoor units, press K2 switch
three times, and check “A3” sign on 7-segment.
If there are four indoor units, press K2 switch
four times, and check “A4” sign on 7-segment.
- Press K1 switch to complete setting the number
of the installed indoor unit : Check “AA” sign on
7-segment.
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 0.2MPa, less than 4MPa
(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.
• 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 "A" 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.
4 Ensure that the drained water runs off correctly and
safely.
Model A B
AC026MXADKH
AC035MXADKH
AC052MXASEH
AC052MXADKH
AC060MXADKH
AC071MXADKH
AC071MXASEH
80mm 30mm
AC100MXASEH
50mm 13mm
5 Be sure to plug the rest of drain holes not connected
with drain plugs using drain caps.