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ENGLISH
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)
