Pump Down Procedure - Samsung DC48GTTX Installation Manual

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 cap from the low pressure side.
2 Turn the low pressure side valve clockwise to close and connect a pressure
gauge (low pressure side) to the service valve, and open the valve again.
3 Set the unit to cool operation mode. (Check if the compressor is operating.)
4 Turn the high pressure side valve counter clockwise to close.
5
When the pressure gauge indicates "0" turn the low pressure side valve counter
clockwise to close.
6
Stop operation of the air conditioner.
7 Close the each cap of valve.
Note Relocation of the air conditioner
 Refer to this procedure when the unit is relocated.
 Carry out the pump down procedure (refer to the details of 'pump
down').
 Remove the power cord.
 Disconnect the assembly cable from the indoor and outdoor units.
 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.
 Disconnect the pipe connected to the outdoor unit.
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.
 Make sure you do not bend the connection pipes in the middle and
store together with the cables.
 Move the indoor and outdoor units to a new location.
 Remove the mounting plate for the indoor unit and move it to a new
location.
High pressure side
(Liquide side)
Low pressure side
(Gas side)
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