Service manual

24
9 OPERATION FLOW-CHART
START
STOP
EMERGENCY
ALL STOP
COOL OPERATION
DRY OPERATION
POWER SUPPLY
Live
ON/OFF
button ON
Abnormal
operation mode
MODE SELECT
button
POWER lamp ON
Protection device
Self hold reset
Protection device
Self hold
Self-diagnostic function
Indicate & Memory
NO
NO
YES
<Note 4>
<Note 5>
NO
1
NO
YES
YES
COOL
DRY
1. Main operation
Note1. The unit starts operation by pressing the ON/OFF switch when unit is OFF.
During operation, the unit stops operation by pressing the ON/OFF switch.
In addition, operation can be turned ON/OFF with the centralized remote controller or the remote switch.
Note2. The factors which cause “abnormal operation mode” are as follows.
● Outdoor unit abnormal operation.
● Fault of room temperature thermistor(RT1).
● Fault of indoor coil thermistor(RT2).
● Indoor coil frost protection mode.
● Fault of drain sensor(DS).
● Drain water overflow prevention mode.
Refer to page 30 for abnormal operation, mode details.
Note3. The indoor fan runs on the low speed for 1 minute to eliminate remaining heat.
Note4. The compressor will not start for 3 minutes after the stop.
Note5. The thermostat is continuously ON during the test run.
Note6. Refer to page 31 for coil frost protection.
Note7. Range A : Indoor coil temperature is more than 5 degrees above room temperature.
Range B : Indoor coil temperature is within 5 degrees either way of room temperature.
Range C : Indoor coil temperature is more than 5 degrees below room temperature.
OC129A-1.qxp 01.10.1 7:33 PM Page 24