Pump Down Operation; Forced Cooling Operation - Daikin 2MXS18NMVJU Installation Manual

Pump Down Operation

In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve cap from liquid stop valve and gas stop valve.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal
wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop forced
cooling operation.

Forced cooling operation

1) Switch off the power.
2) Remove the Service lid (2 screws).
3) Remove the service PC-board switch cover (1 screw).
4) Switch SW5 and SW6 to off.
5) Turn the operation mode switch (SW2) to COOL.
6) Screw the service PC-board switch cover back on (1 screw).
7) Switch the power on.
8) Push the forced operation switch (SW1) above the service PC-board cover.
Start forced cooling operation.
To stop forced operation, push the forced operation switch (SW1) again.
WARNING
Do not remove the switch cover unless the power has been turned off. (Risk of electric shock)
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English
Service PC-board
Remove
the switch
E
cover
D
2
4
C
1
COOL
3
B
Screw
2
A
1
COOL
Gas stop valve
Liquid stop
valve
•Switch SW5 and SW6 to off.
ON OFF
2
1
ON OFF
4
E
3
D
C
B
2
A
2
1
1
4
3
2
1
Operation mode switch (SW2)
HEAT
•Set to COOL.
COOL HEAT
Forced operation switch (SW1)
Close
Hexagonal
wrench
Valve cap
SW6
SW5
16