Powerful Operation; Indoor Unit Quiet Operation - Daikin Quaternity FTXG09HVJU Service Manual

SiUS04-921
2.9

POWERFUL Operation

Operation
 Effective mode for POWERFUL COOLING
 Effective mode for POWERFUL HEATING
Refer to the operation manual for details.
Note
Features The airflow rate and the compressor rotating speed are increased from the normal operation for 20
min. This operation is convenient when you return home. Normal operation will be resumed
automatically in 20 minutes.

2.10 Indoor Unit Quiet Operation

Features Forced lowering of the fan speed decreases the airflow rate and reduces airflow sound. Sound is
reduced by about 3 dB as compared to that in L speed.
Note
Function and Control
• Cooling
• Dry cooling
• Heating
 Operating sound becomes slightly louder.
 It is impossible to change the airflow rate, temperature, and humidity.
 Airflow rate can not be set.
 Since the performance is somewhat lowered as compared to that in normal operation (70%
under rated conditions), the room may not be cooled (or heated) when this operation is used
for a long time.
 The indoor unit quiet operation is kept in memory even when the power supply is turned OFF.
The indication remains on the display of the wireless remote controller and the indoor unit
quiet operation works when the power is turned ON again.
POWERFUL
(Can only be used
if the unit is running.)
(R10073)
Main Functions
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