Installation
50
“Pump down” Procedure
12
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.)
5. When the pressure gauge indicates "0"
turn the 3-way valve clockwise to close.
4. Turn the 2-way valve clockwise to close.
6. Stop operation of the air conditioner.
7. Close the cap of each valve.
Relocation of the air conditioner
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.
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.
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.
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.
2-Way Valve
3-Way Valve
Refer to this procedure when the unit is relocated.
00150A(2)-37~53 2/5/01 11:44 AM Page 50
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