Service Manual

Main Functions SiUS041829E
34 Part 4 Functions and Control
Notes
1.11 POWERFUL Operation
Outline In order to exploit the cooling and heating capacity to full extent, the air conditioner can be operated
by increasing the indoor fan rotating speed and the compressor frequency.
Details When POWERFUL button is pressed, the fan speed and target temperature are converted to the
following states for 20 minutes.
A = ~ 80 rpm
Ex: POWERFUL operation in cooling
POWERFUL operation cannot be used together with ECONO, COMFORT AIRFLOW or
OUTDOOR UNIT QUIET operation.
Operation mode Fan speed Target temperature
COOL H tap + A rpm 18°C (64.4°F)
DRY Dry rotating speed + A rpm Lowered by 2.5°C (4.5°F)
HEAT H tap + A rpm 31°C (87.8°F)
FAN H tap + A rpm —
AUTO Same as cooling/heating in
POWERFUL operation
The target temperature is kept
unchanged.
(R24589)
Target temp.
Fan
A rpm
H tap
Set tap
20 minutes
Lower limit of cooling
temperature
Remote controller registers
20 minutes independently.
POWERFUL
ON
POWERFUL
OFF
Ending conditions:
1. Lapse of 20 minutes
2. System operation OFF
3. POWERFUL operation OFF
18°C (64.4°F)