Toshiba
– 22 –
EN
Outdoor Unit
Installation Manual
13
UNIT 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.
DANGER
Be careful of electric shock because the P.C. board has an electrical current running through it.
14
POWER 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
* All switches are OFF as factory default.
CAUTION
Do not touch SW802 dip switch 1, 3 and 4.
If any changes are made, the unit may not work properly.
1234
ON
1234
ON
Refrigerant
recovery switch
SW801
Optional
connector CN610
Special operation
select switch
SW804
Power save switch
SW802
P.C. board
12
3
4
ON
SW802
... Power save setting
22-EN
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Summary of Contents for CARRIER RAV-SP300AT2-UL
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