Outdoor Unit | Installation Manual |
13UNIT PUMP DOWN
• Use the pump down switch SW801 on the P.C. board of the outdoor unit to pump down the unit.
Procedure
1.Turn on the power of the air conditioner.
2.Select the FAN mode for indoor unit operation with the remote controller.
3.Set SW804 on the P.C. board of the outdoor unit to all OFF, and then press SW801 for 1 second or more. The air conditioner enters the forced cooling mode for up to 10 minutes.
Pump down the unit during this 10 minutes.
4.Upon completion of pump down the unit, close the valve and press SW801 for at least 1 second to stop operation.
5.Turn off the power.
RefrigerantPump downPP.C.C. .boardboard recoveryswitch switch
SW801
SW801
Optional connectorOptional connectorCN610 CN610
Special operation Special operation select switch select switch SW804 SW804
ExistingPower savepipeswitch 
switchSW802SW802
DANGER
Be careful of electric shock because the P.C. board has an electrical current running through it.
14POWER SAVE
• Power save can be set by setting SW802 dip switch.
Procedure
1. Turn on the SW802 dip switch 2 to activate Power save.
Power save controls reducing compressor periodicity (by approx. 10%) depending on the indoor unit heat exchanger temperature in heating operation
SW802
| 4 |
| 3 |
ON | 2 |
1 | |
|
|
... Power save setting
* All switches are OFF as factory default.
CAUTION | EN |
Do not touch SW802 dip switch 1, 3 and 4.
If any changes are made, the unit may not work properly.
– 22 – |
