"Pump Down" Procedure; Relocation Of The Air Conditioner - Samsung AJ009JNNDCH Service Manual

7-6 "Pump down" Procedure

Pump down will be carried out when an evaporator is replaced or when the unit is relocated in another area.

Relocation of the air conditioner

Refer to this procedure when the unit is relocated.
1. Carry out the pump down procedure (refer to the details of ' pump down ' ).
2. Remove the power cord.
3. Disconnect the assembly cable from the indoor and outdoor units.
4. Remove the flare nut connecting the indoor unit and the pipe.
4. At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
5. Disconnect the pipe connected to the outdoor unit.
4. At this time, cover the valve of the outdoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
6. Make sure you do not bend the connection pipes in the middle and store together with the cables.
7. Move the indoor and outdoor units to a new location.
8. Remove the mounting plate for the indoor unit and move it to a new location.
7-6
AJ020JCJ2CH/AJ024JCJ3CH/AJ036JCJ5CH
1) Remove the caps from the 3/8" service valve and
the 5/8" service valve.
2) Turn the 5/8" service valve clockwise to close and
connect a pressure gauge (low pressure side)
to the service valve, and open the 5/8" service valve
again.
3) Set the unit to cool operation mode.
(Check if the compressor is operating.)
4) Turn the 3/8" service valve clockwise to close.
5) When the pressure gauge indicates "0" turn the
5/8" service valve clockwise to close.
6) Stop operation of the air conditioner.
7) Close the cap of each valve.
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