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English
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 caps from the liquid stop valve and gas stop valve.
2)
Begin 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.
5)
Attach the valve caps once procedures are complete.
Liquid
stop valve
Hexagonal
wrench
Valve cap
Close
Gas
stop valve
Forced cooling operation
Using the indoor unit ON/OFF switch
Press the indoor unit ON/OFF switch for at least 5 seconds. (The operation will start.)
• Forced cooling operation will stop automatically after about 15 minutes.
To stop the operation, press the indoor unit ON/OFF switch.
Using the indoor unit’s remote controller
1)
Press
,
and
at the same time.
2)
Press
, select “
”, and press
for confirmation.
3)
Press
and select the COOL operation.
4)
Press
to turn on the system.
• Forced cooling operation will stop automatically after about 30 minutes. To stop the operation, press
.
Trial Operation and Testing
1.
Trial operation and testing
Refer to the installation manual for the indoor unit.
2.
Test items
Test items
Symptom
Check
Indoor and outdoor units are installed securely.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain hose extension are
thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
System is properly grounded.
Electrical leakage
Only specified wires are used for all wiring, and all wires are connected
correctly.
No operation or burn damage
Indoor or outdoor unit’s air inlet or air outlet are unobstructed.
Incomplete cooling/heating function
Stop valves are opened.
Incomplete cooling/heating function
Indoor unit properly receives remote control commands.
No operation
English
01_EN_3P686856-1.indd 12
2022/04/20 9:15:07
