Samsung AQV07PSBN, Service Manual

Page: 192 / 204

Samsung Electronics 9-7
9-6 "Pump down" Procedure
Pump down will be carried out when an evaporator is replaced or when the unit is relocated in another area.
1) Remove the caps from the 2 way valve and
the 3 way valve.
3) Set the unit to cool operation mode.
(Check if the compressor is operating.)
4) Turn the 2 way valve clockwise to close.
7) Close the cap of each valve.
2) Turn the 3 way valve clockwise to close and
connect a pressure gauge (low pressure side)
to the service valve, and open the 3 way valve
again.
5) When the pressure gauge indicates "0" turn the
3 way valve clockwise to close.
6)
Stop operation of the air conditioner.
2 way Valve
3 way Valve
Relocation of the air conditioner
Ŗ
Refer to this procedure when the unit is relocated.
Ŗ
1. Carry out the pump down procedure (refer to the details of ‘pump down’).
Ŗ
2. Remove the power cord.
Ŗ
3. Disconnect the assembly cable from the indoor and outdoor units.
Ŗ 4. Remove the flare nut connecting the indoor unit and the pipe.
Ŗ 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.
Ŗ 5. Disconnect the pipe connected to the outdoor unit.
Ŗ 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.
Ŗ 6. Make sure you do not bend the connection pipes in the middle and store together with the cables.
Ŗ
7. Move the indoor and outdoor units to a new location.
Ŗ
8. Remove the mounting plate for the indoor unit and move it to a new location.
5/8" Service Valve
3/8" Service Valve
RJ040F2HXEA/RJ050F2HXEA
RJ060F3HXEA/RJ070F4HXEA/RJ080F4HXEA/RJ100F5HXEA
1) Remove the caps from the 3/8" service valve and
the 5/8" service valve.
3) Set the unit to cool operation mode.
(Check if the compressor is operating.)
4) Turn the 3/8" service valve clockwise to close.
7) Close the cap of each 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.
5) When the pressure gauge indicates "0" turn the
5/8" service valve clockwise to close.
6) Stop operation of the air conditioner.