Wiring Checking Function - Samsung AJ009JNNDCH Service Manual

4-3-1 Wiring checking function

This product is prohibited one indoor unit installation. Don't use pipe checking operation and Auto Addressing Mode when one
indoor unit is installed.
WARNING
Switch the system on and wait for code "
the external unit (this requires approximately 60 seconds ** ).
As soon as code " "displays, press once the red button (K1) shown on
the figure on the side of the page:
If the quantity of indoor units connected is lower than maximum con-
nectable to outdoor unit, the rotary switch SW01 has to be
WARNING
positioned, in order to select a number equal to indoor units'
quantity you connected.
After the operations described above have been performed, the system starts in Cooling or
Heating mode, depending on the external ambient temperature. After a few minutes (from a
minimum of 3 to 5 minutes for the internal unit), the system stops automatically, completing
the self-test and addressing procedure.
" " appears on the display of the external unit.
20 seconds after the display of "
procedure), the following codes (if four internal units are connected) display in sequence on
the display of the external unit:
Display 1 Display 2
At this point it is possible to start the internal units in the desired mode
If " "doesn't display, the procedure has failed and it is therefore necessary to read ALL
the operator's manual before repeating the operating described in steps 1-2-3-4.
Samsung Electronics
" to appear on the display of
" (that confirms the correct execution of the
Description
The outdoor unit is communication correctly together the in-
door unit connected to refrigerant pipe A.
The outdoor unit is communication correctly together the in-
door unit connected to refrigerant pipe B.
The outdoor unit is communication correctly together the in-
door unit connected to refrigerant pipe C.
The outdoor unit is communication correctly together the in-
door unit connected to refrigerant pipe D.
AJ020JCJ2CH/AJ024JCJ3CH
Display of the external unit
AJ036JCJ5CH
DIP
Display 1 Display 2
Switch
K1 Rotary
Switch
During the initial 60 seconds,
display 1 shows in sequence:
00 01 02 ...15 00...
4-13