19
8-3. DRY (
) OPERATION
(1) Press OPERATE/STOP(ON/OFF) button.
OPERATION INDICATOR lamp of the indoor unit
turns on with a beep tone.
(2) Select DRY mode with the OPERATION SELECT
button.
(3) The microprocessor reads the room temperature
and determines the set temperature. Set tempera-
ture is as shown on the right chart.
Thermostat (SET TEMP.) does not work.
The other operations are same as DRY mode of “I
FEEL CONTROL”.
(4) DRY operation will not function when the room tem-
perature is 55°F or below.
8-4. FAN(
d
)OPERATION
(1) Press OPERATE/STOP(ON/OFF) button.
OPERATION INDICATOR lamp of the indoor unit
turns ON with a beep tone.
(2) Select FAN mode with the OPERATION SELECT
button.
Only indoor fan operates. Outdoor unit does not
operate.
86
77
68
59
50
50
59
68
77
86
95
95
-
F
-
F
Set temperature
Initial room temperature
Set temperature and initial temperature in DRY mode
8-2. COOL (
) OPERATION
(1) Press OPERATE/STOP(ON/OFF) button.
OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.
(2) Select COOL mode with the OPERATION SELECT button.
(3) Press TEMPERATURE buttons.
(TOO WARM or TOO COOL button) to select the desired temperature.
The setting range is 59 ~ 89°F.
w
Indoor fan continues to operate regardless of thermostat’s OFF-ON at set speed.
w
Coil frost prevention is as same as COOL mode of “I FEEL CONTROL”.
High
Med.
Low
High
8-5. FAN MOTOR CONTROL
(1) Rotational frequency feedback control
The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to
feedback the rotational frequency. Comparing the current rotational frequency with the target rotational frequency
(High,Med.,Low), the microprocessor controls, SR141 and adjusts fan motor electric current to make the current
rotational frequency close to the target rotational frequency. With this control, when the fan speed is switched,
the rotational frequency changes smoothly.
(2) Fan motor lock-up protection
When the rotational frequency feedback signal has not output for 12 seconds, (or when the microprocessor cannot
detect the signal for 12 seconds) the fan motor is regarded locked-up. Then the electric current to the fan motor is shut
off. 3 minutes later, the electric current is applied to the fan motor again. During the fan motor lock-up, the OPERATION
INDICATOR lamp flashes on and off to show the fan motor abnormality. (Refer to page 29.)
OB311--1.qxp 04.1.13 9:53 AM Page 19
