Samsung ASHM070VE Service Manual page 23

3-3-2(j) "Pump down" Procedure
• 'Pump down' shall be carried out when an evaporator is replaced or when the unit is relocated in
another are a .
1. Remove the caps from the 2-way valve and the 3-way
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.
3. Set the unit to cool operation mode. (3- UNITS operating)
(Check if the compressor is operating.)
4. Turn the 2-way valve clockwise to close. (A and B room
and C room)
5. When the pressure gauge indicates "0" turn the 3-way
valve clockwise to close. (A and B room and C room)
6. Stop operation of the air conditioner.
7. Close the cap of each valve.
Relocation of the air conditioner
• Refer to this pro c e d u re when the unit is re l o-
c a t e d .
1. Carry out the pump down pro c e d u re
( 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.
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.
Samsung Electronics
Operating Instructions and Installation
5. Disconnect the pipe connected to the outdoor
u n i t .
At this time, cover the valve of the outdoor
unit and the other pipe using a cap or vinyl
plug to avoid entering foreign material.
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
l o c a t i o o n .
8. Remove the mounting plate for the indoor
unit and move it to a new location.
2-Way Valve
3-Way Valve
3-15