SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
INVERTER
SERVICE
INSTRUCTION
R410A
ASU09RL2
ASU12RL2
AOU09RL2
AOU12RL2
CONTENTS
1. DESCRIPTION OF EACH CONTROL OPERATION
1. COOLING OPERATION................................................................................................
3. DRY OPERATION.........................................................................................................
2. HEATING OPERATION.................................................................................................
5. INDOOR FAN CONTROL..............................................................................................
4. AUTO CHANGEOVER OPERATION............................................................................
7. LOUVER CONTROL.....................................................................................................
6. OUTDOOR FAN CONTROL..........................................................................................
9. TIMER OPERATION CONTROL...................................................................................
8. COMPRESSOR CONTROL..........................................................................................
11. FOUR-WAY VALVE EXTENSION SELECT................................................................
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST ).................................
13. MANUAL AUTO OPERATION ( Indoor unit body operation ).....................................
12. AUTO RESTART.........................................................................................................
14. FORCED COOLING OPERATION..............................................................................
15. COMPRESSOR PREHEATING..................................................................................
16. ECONOMY OPERATION............................................................................................
01-01
01-02
01-02
01-03
01-04
01-06
01-07
01-08
01-09
01-11
01-11
01-11
01-12
01-12
01-12
17. POWERFUL OPERATION.......................................................................................... 01-12
19. OFF DEFROST OPERATION CONTROL...................................................................
18. DEFROST OPERATION CONTROL........................................................................... 01-13
01-15
20. VARIOUS PROTECTIONS.......................................................................................... 01-16
01-11
2. TROUBLE SHOOTING
2-1 ERROR DISPLAY.......................................................................................................
2-2 TROUBLE SHOOTING WITH ERROR CODE............................................................
2-3 TROUBLE SHOOTING WITH NO ERROR CODE.....................................................
02-01
02-02
02-21
2-4 SERVICE PARTS INFORMATION.............................................................................. 02-26
3. APPENDING DATA
3-1 FUNCTION SETTING.................................................................................................
3-1-1 INDOOR UNIT....................................................................................................
3-1-2 Procedures to change the Function Setting for wireless RC..............................
03-01
03-01
03-03
3-2 Thermistor Resistance Values.....................................................................................
3-2-1 INDOOR UNIT....................................................................................................
3-2-2 OUTDOOR UNIT................................................................................................
03-06
03-06
03-06
1 . DESCRIPTION OF EACH
CONTROL OPERATION
R410A
WALL MOUNTED type
INVERTER
( Fig.1 : Outdoor temperature zone )
1. COOLING OPERATION
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
Minimum
frequency
Maximum
frequency
Maximum
frequency
AOU09RL2
AOU12RL2
18rps
57rps
80rps
36°C
(97°F)
A zone
34°C
(93°F)
32°C
(90°F)
B zone
30°C
(86°F)
21°C
(70°F)
C zone
19°C
(66°F)
D zone
Indoor fan mode
Me Lo Quiet
A zone 80rps 49rps 42rps 32rps
B zone 80rps 49rps 42rps 32rps
C zone 80rps 49rps 42rps 32rps
ASU09RL2
D zone 49rps 44rps 40rps 29rps
E zone 49rps 44rps 40rps 29rps
F zone 49rps 44rps 40rps 29rps
( Table 1 : Compressor frequency range )
01-01
E zone
F zone
10°C
(50°F)
0°C
(32°F)
12°C
(54°F)
2°C
(36°F)
* When the room temperature is between +2°C(4°F) to -2.5°C(-5°F) of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Fig.1 based on the indoor
fan mode and the outdoor temperature.
* If the room temperature is some degrees lower than a set temperature,
the compressor will be stopped.
ASU12RL2
A zone 96rps 61rps 51rps 33rps
B zone 96rps 61rps 51rps 33rps
C zone 96rps 61rps 51rps 33rps
D zone 73rps 57rps 45rps 33rps
E zone 73rps 57rps 45rps 33rps
F zone 73rps 57rps 45rps 33rps
When the outdoor
temperature drops
When the outdoor
temperature rises
( Table 2 : Limit of maximum speed based on outdoor temperature )
80rps
96rps
Outdoor
temp. zone
Hi
* If the room temperature is 2°C(4°F) higher than a set temperature, the compressor operation
frequency will attain to maximum performance.
When the compressor operates for 30 minutes continuously at over the maximum frequency ,
the maximum frequency is changed from Maximum Frequency to Maximum Frequency.
2. HEATING OPERATION
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is lower by 3°C (6°F) than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is some degrees higher than a set temperature,
the compressor will be stopped.
* When the room temperature is between +2.5°C (+5°F) to -3°C (-6°F) of the setting temperature,
the compressor frequency is controlled within the range shown in Table 3.
However, the maximum frequency is limited shown in Table 4 based on the fan mode.
( Table 3 : Compressor frequency range )
01-02
Minimum
frequency
Maximum
frequency
AOU09RL2
AOU12RL2
18rps
120rps
80rps
3. DRY OPERATION
The compressor frequency shall change according to the temperature, set temperature,
and room temperature variation which the room temperature sensor of the indoor unit body has
detected as shown in the Table 5.
However, after the compressor is driven, the indoor unit shall run at operation frequency of
(09 : 52 rps, 12 : 61 rps) for 60 seconds.
Ts+0.5°C (Ts+1°F)
Ts -1.5°C (Ts-3°F)
Ts -0.5°C (Ts-1°F)
Ts+1.5°C (Ts+3°F)
( Table 5 : Compressor frequency in Dry mode)
( Fig.2 : Compressor control based on room temperature )
Operating
frequency
30rps
28rps
0rps
AO09RL2
X zone
J zone
Y zone
Operating
frequency
J zone
Y zone
X zone 33rps
25rps
0rps
AO12RL2
X zone
J zone
Y zone
When the room
temperature drops
When the room
temperature rises
Indoor fan mode
Me Lo Quiet Auto
120rps
80rps
( Table 4 : Limit of maximum speed based on outdoor temperature )
Hi
AOU09RL2
AOU12RL2
4. AUTO CHANGEOVER OPERATION
01-03
(Fig. 3 : Operation flow chart in Auto changeover)
START
Room temp.
Room temp.
>Ts+2°C (4°F) ?
COOLING OPERATION
HEATING OPERATION
YES
YES
NO
NO
NO
NO
YES
YES
TS : Setting temperature
<Ts- 2°C(4°F) ?
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
NO
NO
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
YES
YES
When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the Heating, Cooling, Dry and Monitoring modes.
During operation, the optimum mode is automatically switched in accordance with temperature changes.
The temperature can be set between 18°C (64°F) and 30°C (88°F) in 1°C (2°F) steps.
5. INDOOR FAN CONTROL
The airflow can be switched in 5 steps such as Auto, Quiet, Lo, Me, Hi, while the indoor fan only runs.
When fan mode is set at [Auto], it operates on [Me] fan Speed.
01-04
2. FAN OPERATION
3. COOLING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig4.
On the other hand, if switched in [Hi] [Quiet], the indoor motor will run at a constant airflow of [Cool]
operation modes Quiet, Lo, Me, Hi, as shown in Table 6.
( Fig.4 : Airflow change - over ( Cooling : Auto ) )
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
TR-Ts > 2°C (4°F)
1°C (2°F) > TR-Ts
2°C (4°F) > TR-Ts > 1°C (2°F)
=
TR-Ts > 2.5°C (5°F)
=
1.5°C (3°F) > TR-Ts
2.5°C (5°F) > TR-Ts > 1.5°C (3°F)
=
Hi mode
Me mode
Lo mode
1. Fan speed
( Table 6 : Indoor fan speed )
Operation mode Air flow mode
Speed (rpm)
Cooling/ Fan
Heating
Dry
X zone: 700
J zone: 600
X zone: 700
J zone: 600
ASU09RL2
ASU12RL2
4. DRY OPERATION
Refer to the Table 6.
During the dry mode operation, the fan speed setting can not be changed.
Hi 1360
Hi 1320
Me+ 1290
Me 1120
Me 1120
Lo 900
Lo 840 860
Quiet 700
* Soft Quiet 600
Quiet 700
S-Lo 480
Cool air prevention 600
Powerful 1420
Powerful 1400
1360
1320
1290
1120
1120
900
700
600
700
480
600
1420
1400
*Note, during Economy operation and operation mode is Fan, air flow is 1 step downs.
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)
The maximum value of the indoor fan speed is set as shown in Fig.6 based on the detected
temperature by the indoor heat-exchanger sensor on heating mode.
( Fig.6 : Cool air prevension control )
01-05
5. HEATING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig. 5
On the other hand, if switched in [Hi] [Quiet], the indoor motor will run at a constant airflow
of [Heat] operation modes Quiet, Lo, Me, High, as shown in Table 6.
6. COOL AIR PREVENTION CONTROL (Heating mode)
( Fig.5 : Airflow change - over ( Heating : Auto ) )
TR-Ts > -1.5°C (-3°F)
=
-2.5°C (-5°F) > TR-Ts
-1.5°C (3°F) > TR-Ts > -2.5°C (-5°F)
=
TR-Ts > -1°C (-2°F)
=
-2°C (-4°F) > TR-Ts
-1°C (-2°F) > TR-Ts > -2°C (-4°F)
=
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
Lo mode
Me mode
Me+ mode
42°C (108°F)
30°C (86°F)
34°C (93°F)
When the Indoor heat
exchanger temp. rises
When the Indoor heat
exchanger temp. drops
When the Indoor heat
exchanger temp. rises
When the Indoor heat
exchanger temp. drops
* Hi or setting
Fan mode
* Me+ or setting
Fan mode
* Lo or setting
Fan mode
Cool air
prevention
39°C (102°F)
37°C (99°F)
37°C (99°F)
32°C (90°F)
28°C (82°F)
S-Lo
Switch the airflow [Auto] at cooling mode, and the indoor fan motor will run as shown in Fig.7.
7. MOISTURE RETURN PREVENTION CONTROL (Cooling mode& Dry mode)
( Fig.7 : Indoor fan control )
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in Table 7)
S-Lo
OFF
10 30 60 180 60 180 60 10 30
(sec)
( Table 7 : Indoor fan speed )
X zone J zone
ASU09/12RL2
700rpm 600rpm
Y zone
0 480rpm 700rpm
Dry
Cooling
42°C
(108°F)
30°C
(86°F)
34°C
(93°F)
Powerful
Hi
Lo
Cool air
prevention
39°C
(102°F)
37°C
(99°F)
37°C
(99°F)
32°C
(90°F)
28°C
(82°F)
S-Lo
<Normal operation>
<Powerful operation>
* Lower speed is selected.
* Lower speed is selected.
6. OUTDOOR FAN CONTROL
( Table 9 : Outdoor fan speed )
( Fig.8 : Outside air temperature zone selection )
Refer to Fig.8
01-06
1. Outdoor Fan Motor
2. Fan Speed
Following table shows the type of the outdoor fan motor. The control method is different
between AC motor and DC motor.
*The outdoor fan speed mentioned adove depends on the compressor frequency.
(When the compressor frequency increases, the outdoor fan speed also changes to the higher
speed. When the compressor frequency decreases, the outdoor fan speed also changes to the
lower speed.)
*After the defrost control is operated on the heating mode, the fan speed keeps at the higher speed
as table 10 without relating to the compressor frequency.
( Table 8 : Type of Motor )
Zone
Cooling Heating
AOU09RL2 900 / 650 / 470 730 / 470
Y 730 / 650 / 470
860 / 760 / 470
860 / 470 / 380
730 / 470 / 360
360 / 150
210 / 150
380 / 280
280 / 200
Z
F
G
Y
Z
F
G
AOU12RL2 900 / 760 / 680 / 470 760 / 470
Dry
AC motor DC motor
AOU09RL2
AOU12RL2
( Table 10 : Outdoor fan speed after the defrost )
900 rpm
AOU09RL2
AOU12RL2
21°C (70°F)
Outside air
temperature
Outside air
temperature
2°C (36°F)
10°C (50°F)
Y zone
Z zone
F zone
12°C (54°F)
19°C (66°F)
0°C (32°F)
G zone
7. LOUVER CONTROL
1. VERTICAL LOUVER CONTROL
3. SWING OPERATION
Each time the button is pressed, the air direction range will change as follow:
(Function Range)
01-07
The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.
Cooling / Dry mode Horizontal flow
Heating mode Downward flow
When the swing signal is received from the remote controller, the vertical louver starts to swing.
(Table10 : Swinging Range)
Fig.8 : Air Direction Range
Cooling / Dry mode
Fan mode ( )
Types of Air flow Direction Setting:
, , , : During Cooling/Dry modes
, , , : During Heating
The Remote Controller's display does not change.
Use the air direction adjustments within the ranges shown above.
If you set the angle to position ~ for more than 30 minutes in Cooling or Dry mode,
they automatically return to position .
In Cooling or Dry mode, if the angle is set to position ~ for many hours,
condensation may be formed, and the drips may wet your property.
Range
Heating
mo
de
Fa
n
m
od
e
(
)
The SWING operation may stop temporarily when the air conditioner’s fan is not operating,
or when operating at very low speeds.
2. ADJUST THE RIGHT-LEFT LOUVERS
Move the Right-Left louvers to adjust air flow in the direction you prefer.
Knob (2 places)
To select Vertical Airflow Swing Operation
To select Horizontal Airflow Swing Operation
(No function)
1
2
3
4
5
6
7
Right-Left Louvers
Knob
8. COMPRESSOR CONTROL
01-08
1. OPEARTION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the Table 11.
Cooling / Dry Heating
Minimum Maximum Minimum Maximum
AOU09RL2
AOU12RL2
18rps
80rps
18rps 120rps
96rps
AOU09RL2
AOU12RL2
AOU09RL2
AOU12RL2
56rps 67rps 75rps
(Table 11 : Compressor frequency range)
2. OPEARTION FREQUENCY CONTROL AT NORMAL START UP
The compressor frequency soon after the start-up is controlled as shown in the Fig.9.
(Fig.9 : Compressor control at start-up)
Time
Time Time Time
Time
(Frequency)
Frequency
Frequency
Frequency Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Time
Time Time Time
Time
80sec 140sec 200sec
(Time)
AOU09RL2
AOU12RL2
78rps 78rps
Frequency
Time
6
Frequency
Time
6
78rps
56rps 74rps 87rps 97rps 108rps 119rps
380sec 440sec440sec
60sec 100sec 140sec 200sec 410sec350sec
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table12.
Under Over Under Over Under Over
45rps 27rps
35rps 23rps
30rps-------
(Table12 : Limitation of Compressor Frequency)
AOU09RL2
AOU12RL2
10°C (50°F) 14°C (59°F) 40°C (104°F)
Under Over Under Over Under Over Under Over
34rps 22rps 27rps
36rps 27rps 27rps
30rps-------
- 3°C (26°F) 7°C (45°F) 14°C (59°F) 40°C (104°F)
[ Cooling/ Dry ]
[ Heating ]
9. TIMER OPEARTION CONTROL
1. OPEARTION FREQUENCY RANGE
The Table 13 shows the available timer setting based on the product model.
ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER
ASU09RL2
ASU12RL2
OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
Operation mode
Stop mode
Set time of timer
ON timer : When the clock reaches the set time, the air conditioner will be turned on.
Operation mode
Stop mode
Set time of timer
The program timer allows the OFF timer and ON timer to be used in combination one time.
Operation mode
Operation will start from the timer setting (either OFF timer or ON timer) whichever is closest
to the clock's current timer setting.
The order of operations is indicated by the arrow in the remote control unit's display.
SLEEP timer operation cannot be combined with ON timer operation.
( Table 13 : Timer Setting )
2. PROGRAM TIMER
Stop mode
Stop mode
Stop mode
Operation mode
Operation mode
Set time Set time Set time Set time
01-09
9-1 WIRELESS REMOTE CONTROLLER
3. SLEEP TIMER
If the sleep is set, the room temperature is monitored and the operation is stopped automatically.
If the operation mode or the set temperature is change after the sleep timer is set, the operation is
continued according to the changed setting of the sleep timer from that time ON.
Set temperature rises
( Ts : Set temperature )
Stop of operation
Set temperature lowers
( Ts : Set temperature )
Ts
Stop of operation
In the cooling operation mode
When the sleep timer is set, the setting temperature is increased 1°C (2°F).
It increases the setting temperature another 1°C (2°F) after 1 hour.
After that, the setting temperature is not changed and the operation is stopped at the time
of timer setting.
Ts
+1°C (2°F)
+2°C (4°F)
Set
60min
In the heating operation mode
When the sleep timer is set, the setting temperature is decreased 1°C (2°F).
It decreases the setting temperature another 1°C (2°F) every 30 minutes.
Upon lowering 4°C (8°F), the setting temperature is not changed and the operation stops at
the time of timer setting.
-4°C (-8°F)
-3°C (-6°F)
-2°C (-4°F)
-1°C (-2°F)
Set
30min
30min
30min
01-10
01-11
The compressor won't enter operation status for 2 minutes and 20 seconds after the compressor is stopped,
even if any operation is given.
At the time when the air conditioner is switched from the cooling mode to heating mode, the
compressor is stopped, and the four-way valve is switched in 2 minutes and 20 seconds later after
the compressor stopped.
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )
11. FOUR-WAY VALVE EXTENSION SELECT
When the power was interrupted by a power failure, etc. during operation, the operation contents
at that time are memorized and when power is recovered, operation is automatically started with
the memorized operation contents.
When the power is interrupted and recovered during timer operation, since the timer operation time
is shifted by the time the power was interrupted, an alarm is given by blinking (7 sec ON/2 sec OFF)
the indoor unit body Timer lamp.
[ Operation contents memorized when the power is interrupted ]
Operation mode
Set temperature
Set air flow
Timer mode and set time
Set air flow Direction
Swing
ECONOMY operation
12. AUTO RESTART
13. MANUAL AUTO OPERATION (Indoor unit body operation)
When the remote control is lost or battery power dissipated, this function will work without the remote control.
When MANUAL AUTO button is set more than 3seconds and less than 10seconds, MANUAL AUTO OPERATION
will be started as shown in Table14.
To stop operation, press the MANUAL AUTO button for 3seconds.
(Table14 : MANUAL AUTO OPERATION)
Press and hold MANUAL AUTO
button for 3 ~ 10seconds
OPERATION MODE Auto changeover
FAN CONT. MODE Auto
TIMER MODE Continuous
SETTING TEMP. 24°C (75°F)
SETTING LOUVER Standard
SWING
ECONOMY
OFF
OFF
(No timer setting available)
Manual auto operation
01-12
14. FORCED COOLING OPERATION (TEST OPERATION)
Forced cooling operation is started when press MANUAL AUTO button for 10 seconds or more.
During the forced cooling operation, it operates regardless of room temperature sensor.
Operation lamp and Timer lamp blink at the same time during the forced cooling operation.
They blink for 1 second ON and 1 second OFF on both Operation lamp and Timer lamp (same as test operation).
Forced cooling operation is released after 60 minutes of starting operation or pressing MANUAL AUTO button
for 3 seconds or pressing START/STOP button on the remote controller.
( Table15 : FORCED COOLING OPERATION )
When FORCED COOLING OPERATION is set, the operation is controlled as shown in Table15.
Forced cooling operation
Cooling
Hi
Horizontal
(It is changed follow as setting of remote controller)
OFF
Room Temp is not controlled
-
-
OPERATION MODE
FAN CONT. MODE
TIMER MODE
SETTING TEMP.
SETTING LOUVER
SWING
ECONOMY
15. COMPRESSOR PREHEATING
16. ECONOMY OPERATION
The ECONOMY operation functions by pressing ECONOMY button on the remote controller.
At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation
for cooling and heating.
The ECONOMY operation is almost the same operation as below settings.
( Table 16 )
When the outdoor heat exchanger temperature is lower than 5°C and the all operation has
been stopped for 30 minutes, power is applied to the compressor and the compressor is heated.
(By heating the compressor, warm air is quickly discharged when operation is started.)
When operation was started, and when the outdoor temperature rises to 7°C (44.6°F) or greater,
preheating is ended.
17. POWERFUL OPERATION
The POWERFUL OPERATION functions by pressing POWERFUL button on the remote controller.
The indoor unit & outdoor unit will operate at maximum power as shown in Table17.
Release Condition is as follows.
[Cooling / Dry]
- Room temperature < Setting temperature - 1.5°C (-3°F) or Operation time has passed 20 minutes.
COMPRESSOR FREQUENCY Maximum
FAN CONT. MODE Powerful
SETTING LOUVER Cooling/ Dry : 3, Heating : 5
(Table17)
Powerful operation
=
=
[Heating]
- Room temperature > Setting temperature +1.5°C (+3°F) or Operation time has passed 20 minutes.
Mode Cooling/ Dry
Heating
Target temperature Setting temp.+1°C (2°F) Setting temp.-1°C (-2°F)
01-13
18. DEFROST OPERATION CONTROL
1. CONDITION OF STARTING THE DEFROST OPERATION
The defrost operation starts as shown in the following Table 18.
2. CONDITION OF THE DEFROST OPERATION COMPLETION
Release Condition
Outdoor heat exchanger temperature sensor value is higher than +16°C (60.8°F) or
Compressor operation time has passed 15 minutes.
(Table 18 : Condition of starting Defrost Operation)
Defrost operation is released when the conditions become as shown in Table 19.
(Table 19 : Defrost Release Condition)
Integrating defrost
If the compressor continuous operation time is less than 10 minutes,
the OFF number of the compressor is counted.
If any defrost operated, the compressor OFF count is cleared.
Normal defrost
Compressor integrating operation time
Less than 25 minutes More than 25 minutes
Does not operate
Outdoor heat exchanger temp. < -17°C (1.4°F)
(at outside air temp. > -10°C (14°F))
Outdoor heat exchanger temp. < Outside air temp.
- 7°C (-44.6°F)
or Outdoor heat exchanger temp. < - 20°C (-13°F)
(at outside air temp. < -10°C (14°F))
More than 240 minutes
(For continuous operation)
Less than 10 minutes
( For intermittent operation )
Compressor integrating operation time
Outdoor heat exchanger
temperature below -3°C (-6°F)
More than 213 minutes
(For continuous operation)
Outdoor heat exchanger
temperature below -5°C (-10°F)
OFF count of the compressor
40 times
=
=
=
=
01-14
Outdoor fan : OFF
Compressor speed : 0 rps
4-way valve : OFF
Compressor speed : 90rps
3. Defrost Flow Chart
The defrosting shall proceed by the integrating operation time, outdoor temperature
and outdoor heat exchanger temperature as follows.
(Not defrosted for 10 minutes)
Heating operation start : Compressor ON
Outdoor HEX temp.: Over 16°C (60.8°F)
or
Compressor ON time: Maximum 15 minutes
Defrost end
Outdoor HEX temp.
Below - 17°C(1.4°F)
Outdoor HEX temp.
- Outside air temp.
Below - 7°C(-44.6°F)
or
Outdoor HEX temp.
Below - 20°C(-4°F)
Integrating defrost
Defrost Indicator:
[Operation lamp]
7 sec ON / 2 sec OFF
Defrost start
Normal defrost
Outside air temp. > -10°C Outside air temp. < -10°C
=
Compressor
OFF count :
40 times
(Less than 10min.)
Compressor
integrating
operation:
Over 240 min.
Outdoor
heat exchanger
temperature:
Below - 3°C
(26.6°F)
Compressor
integrating
operation:
Over 213 min.
Outdoor
heat exchanger
temperature:
Below - 5°C
(23°F)
Intermittent operation Continuous operation
(14°F)(14°F)
19. OFF DEFROST OPEARTION CONTROL
01-15
1. OFF DEFROST OPERATION CONDITION
When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat
exchanger, the defrost operation will proceed automatically. In this time, if indoor unit Operation lamp
flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost,
and then stop.
OFF Defrost Flow Chart
Heating operation stop
Defrost start
Defrost Indicater:
[Operation lamp]
7 sec ON / 2 sec OFF
Outdoor heat exchanger temperature:
Over 16°C (60.8°F) or
Compressor ON time: Over 15 minutes
Defrost end
2. OFF DEFROST END CONDITION
Release Condition
Outdoor heat exchanger temperature sensor value is higher than
16°C (60.8°F) or Compressor operation time has passed 15 minutes.
In heating operation, the outdoor heat exchanger temperature is less than - 4°C (24.8°F),
compressor continuous operation more than 10 minutes, and
compressor operation integrating time lasts for more than 30 minutes.
Outdoor heat exchanger temperature :
Below - 4°C (24.8°F)
Compressor continuous operation :
Over 10 minutes
Compressor integrating operation :
Over 30 minutes
20. VARIOUS PROTECTIONS
1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL
The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature.
When the discharge temperature becomes higher than Temperature , the compressor frequency
is decreased 20rps, and it continues to decrease the frequency for 20rps every 120 seconds until
the temperature becomes lower than Temperature .
When the discharge temperature becomes lower than Temperature , the protection control of the
compressor frequency will be released.
When the discharge temperature becomes higher than Temperature , the compressor is stopped
and the indoor unit body Operation lamp and Timer lamp starts blinking.
104°C
(219.2°F)
101°C
(213.8°F)
110°C
(230°F)
(Table 20 : Discharge temperature over rise prevension control / Release temperature)
Temperature
Temperature
Temperature
2. CURRENT RELEASE CONTROL
The compressor frequency is controlled so that the outdoor unit input current does not exceed
the current limit value that was set up with the outdoor temperature.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.
( Table 21 : Current release operation value / Release value )
01-16
[ Heating ]
OT : Outdoor Temperature
[ Cooling ]
AOU09RL2
OT (Control / Release)
8.0A / 7.5A
9.0A / 8.5A
12.0A / 11.5A
46°C (114.8°F)
40°C (104°F)
46°C (114.8°F)
40°C (104°F)
OT : Outdoor Temperature
AOU09RL2
OT (Control / Release)
10.5A / 10.0A
12.0A / 11.5A
12.5A / 12.0A
12.5A / 12.0A
17°C (62.6°F)
12°C (53.6°F)
5°C (41°F)
17°C (62.6°F)
12°C (53.6°F)
5°C (41°F)
[ Heating ]
OT : Outdoor Temperature
[ Cooling ]
AOU12RL2
OT (Control / Release)
9.0A / 8.5A
10.0A / 9.5A
12.0A / 11.5A
OT : Outdoor Temperature
AOU12RL2
OT (Control / Release)
11.0A / 10.5A
12.0A / 11.5A
14.0A / 13.5A
14.5A / 13.5A
3. ANTIFREEZING CONTROL (Cooling and Dry mode)
The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger
temperature sensor detects the temperature lower than Temperature .
Then, the anti-freezing control is released when it becomes higher than Temperature .
(Table 22 : Anti-freezing Protection Operation / Release Temperature)
4. COOLING PRESSURE OVERRISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to 67°C (152.6°F) or greater,
the compressor and the outdoor fan motor are stopped and trouble display is performed.
5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
01-17
Outdoor temperature
Over than 10°C (50°F)*1
or 12°C (53.6°F) *2
Less than 10°C(50°F) *1
or 12°C (53.6°F) *2
*1. When the temperature rises.
*2. When the temperature drops.
4°C (39.2°F)
7°C (44.6°F)
13°C (55.4°F)
Temperature Temperature
On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.
[ Control System ]
Indoor heat exchange
temperature rises
Indoor heat exchange
temperature drops
It returns to the normal operation
Compressor is stopped
53°C (127.4°F)
55°C (131°F)
63°C (145.4°F)
50°C (122°F)
The compressor frequency is
decreased 3rps every 60seconds.
The compressor frequency is
decreased 25rps every 120seconds.
Stable zone
2 . TROUBLE SHOOTING
R410A
WALL MOUNTED type
INVERTER
2. TROUBLESHOOTING
02-01
2-1 ERROR DISPLAY
Please refer the flashing pattern as follows.
Indoor Unit : ASU09/ 12RL2
The Operation, Timer and Economy lamps operate as follows according to the error contents.
Manual auto switch error
Room temp. sensor error
Indoor unit PCB model information error
Error Contents
Continuous
Continuous
4 times
Continuous2 times
3 times
3 times
5 times
Continuous1 times1 times
Trouble
shooting
(Green)
(Orange)
(Green)
1 times
Serial communication error
Indoor unit fan motor error
Indoor unit Heat Ex. middle temp.
sensor error
Continuous4 times 2 times
Continuous1 times5 times
Outdoor unit main PCB model
information error or communication error
Continuous
2 times6 times
Continuous
Continuous
4 times
7 times
6 times
1 times
Continuous
7 times 3 times
Continuous
7 times 4 times
Continuous
PFC circuit error
Discharge temp. sensor error
Outdoor unit Heat Ex. liquid temp.
sensor error
Outdoor temp. sensor error
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Continuous
8 times
4 times
Current sensor error
Continuous
Continuous
Continuous
5 times9 times
Compressor rotor position detection error
Continuous
7 times9 times
Outdoor unit fan motor error
4 times9 times
9 times 9 times
4-way valve error
1 times10 times
Discharge temp. error
Trip detection
Continuous
5 times6 times
Trip terminal L error
Indoor Unit Display
[ ]
[ ]
[ ]
Operation
Timer
Economy
02-02
2-2 TROUBLE SHOOTING WITH ERROR CODE
Trouble shooting 1-1
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
OK
YESYES
NO
RED
WHITE
BLACK
BLACK
WHITE
GREEN
+
-
OK
Serial communication error
(Serial Reverse Transfer Error)
Outdoor unit Main PCB
1. Connection failure 2. External cause 3. Main PCB failure
Check Point 1-1 : Reset the power and operate
Does Error indication show again?
Check Point 1-2: Check external cause such as noise
Check the complete insulation of the grounding.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Check Point 2 : Check Connection
Check any loose or removed connection line of
Indoor unit and Outdoor unit.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.
Check Point 3 : Check the voltage of power supply
Check the voltage of power supply
>> Check if AC103V (AC115V -10%) - 127V (AC115V +10%) appears
at Outdoor Unit Terminal L - N.
Check Point 4 : Check Serial Signal (Reverse Transfer Signal)
Check Serial Signal (Reverse Transfer Signal)
>> Check if Indicated value swings between AC45V and AC135V at Outdoor Unit Terminal 1 - 3.
>> If it is abnormal, replace Main PCB.
When the indoor unit cannot receive the serial signal from Outdoor unit
more than 2minutes after power ON, or the indoor unit cannot receive
the serial signal more than 15seconds during normal operation.
N
L
3
2
1
Indicate or Display:
Refer to error code table.
02-03
Trouble shooting 1-2
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
OK
YESYES
NO
+
-
OK
Serial communication error
(Serial Forward Transfer Error)
Indoor unit Controller PCB
Indoor unit Fan motor
1. Connection failure 2. External cause 3. Controller PCB failure 4. Indoor unit fan motor failure
Check Point 1-1 : Reset the power and operate
Does Error indication show again?
Check Point 1-2: Check external cause such as noise
Check the complete insulation of the grounding.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Check Point 2 : Check Connection
Check any loose or removed connection line of
Indoor unit and Outdoor unit.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.
Check Point 3 : Check the voltage of power supply
Check the voltage of power supply
>> Check if AC103V (AC115V -10%) - 127V (AC115V +10%) appears
at Outdoor Unit Terminal L - N.
Check Point 4 : Check Serial Signal (Reverse Transfer Signal)
Check Serial Signal (Forward Transfer Signal)
>> Check if Indicated value swings between AC30V and AC130V at Outdoor Unit Terminal 2 - 3.
>> If it is abnormal, replace Controller PCB.
>> If it is abnormal, Check Indoor unit fan motor. (PARTS INFORMATION 4)
>> If Indoor unit fan motor is abnormal, replace Indoor unit fan motor and Controller PCB.
When the outdoor unit cannot receive the serial signal from Indoor unit
more than 10seconds.
RED
WHITE
BLACK
BLACK
WHITE
GREEN
N
L
3
2
1
Indicate or Display:
Refer to error code table.
Detective Actuators:
Detective details:
Forecast of Cause:
Check Point 3 : Replace Controller PCB
Check Point 2 :
Check Indoor unit electric components
YESYES
NO
Trouble shooting 2
INDOOR UNIT Error Method:
Indoor unit PCB model information
error
Indoor unit Controller PCB
1. External cause 2. Defective connection of electric components 3. Controller PCB failure
Check Point 1-1 : Reset Power Supply and operate
Does Error indication show again?
Check Point 1-2 :
Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Note : EEPROM
EEPROM(Electronically Erasable and
Programmable Read Only Memory) is a nonvolatile memory which keeps memorized
information even if power is turned off. It can
change the contents electronically.
To change the contents, it uses higher
voltage than normal, and it can not change a
partial contents. (Rewriting shall be done
upon erasing the all contents.)
There is a limit in a number of rewriting.
Change Controller PCB.
Check all connectors.
(loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.
When power is on and there is some below case.
1. When model information of EEPROM is incorrect.
2. When the access to EEPROM failed.
02-04
Indicate or Display:
Refer to error code table.
02-05
Trouble shooting 3
INDOOR UNIT
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
OKOK
Manual auto switch error
Indoor unit Controller PCB
Indicator PCB
Manual auto switch
When the Manual auto switch becomes ON for consecutive 60 or
more seconds.
1. Manual auto switch failure 2.Controller PCB and Indicator PCB failure
Check Point 1 : Check the Manual auto switch
Check if Manual auto switch is kept pressed.
Check Point 2 : Replace Controller PCB
If Check Point 1 do not improve the symptom, change Controller PCB and Indicator PCB.
Check ON/OFF switching operation by using a meter.
>>If Manual Auto Switch is disabled (on/off switching), replace it.
Indicate or Display:
Refer to error code table.
Trouble shooting 4
INDOOR UNIT
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 : Check Point 2 : Remove connector and check Thermistor resistance value
Check Point 1 : Check connection of Connector
Check Point 3 : Check Point 3 : Check voltage of Controller PCB (DC5.0V)
10.012.515.7119.9125.3932.6742.3655.46Resistance Value (k )
Temperature
OK
OK
5.3166.528.051Resistance Value (k )
Temperature
Room temp. sensor error
Indoor unit Controller PCB
Room temperature thermistor
When Room temperature thermistor open or short-circuit is detected.
1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Controller PCB.
02-06
25°C
(77°F)
20°C
(68°F)
15°C
(59°F)
10°C
(50°F)
5°C
(41°F)
0°C
(32°F)
-5°C
(23°F)
-10°C
(14°F)
40°C
(104°F)
4.354
45°C
(113°F)
35°C
(95°F)
30°C
(86°F)
THERMISTOR
(ROOM TEMP.)
THERMISTOR
(PIPE)
BLACK
CN4
1
2
3
4
1
2
3
4
BLACK
BLACK
BLACK
Indicate or Display:
Refer to error code table.
Trouble shooting 5
INDOOR UNIT
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
62.9102.1131.4170.7223.3295.1Resistance Value (k )
Temperature
OKOK
OK
17.1125.839.78Resistance Value (k )
Temperature
Indoor unit Heat Ex. middle temp.
sensor error
Indoor unit Controller PCB
Heat Ex. temperature thermistor
When Heat Ex. temperature thermistor open or short-circuit is detected.
1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 3 : Check voltage of Controller PCB (DC5.0V)
Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Controller PCB.
02-07
20°C
(68°F)
10°C
(50°F)
5°C
(41°F)
0°C
(32°F)
-5°C
(23°F)
-10°C
(14°F)
50°C
(122°F)
11.6
60°C
(140°F)
10.36
63°C
(144°F)
40°C
(104°F)
30°C
(86°F)
Indicate or Display:
Refer to error code table.
THERMISTOR
(ROOM TEMP.)
THERMISTOR
(PIPE)
BLACK
CN4
1
2
3
4
1
2
3
4
BLACK
BLACK
BLACK
Trouble shooting 6
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
Check Point 1 : Check rotation of Fan
Check Point 2 : Check ambient temp. around motor
OK
OK
OK
Indoor unit fan motor error
Indoor unit Controller PCB
Indoor unit Fan motor
1. Fan rotation failure 2. Fan motor winding open 3. Motor protection by surrounding temperature rise
4. Control PCB failure 5. Indoor unit fan motor failure
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
>>If Fan or Bearing is abnormal, replace it.
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
>>Upon the temperature coming down, restart operation.
When the condition that actual frequency of Indoor Fan is
below 1/3 of target frequency is continued more than 56 seconds.
02-08
Check Point 4 : Replace Controller PCB
If Check Point 1- 3 do not improve the symptom, replace Controller PCB.
Check Point 3 : Check Indoor unit fan motor
Check Indoor unit fan motor. (PARTS INFORMATION 4)
>>If Indoor unit fan motor is abnormal, replace Indoor unit fan motor.
Indicate or Display:
Refer to error code table.
Detective Actuators:
Detective details:
Forecast of Cause:
Check Point 2 : Replace Main PCB
YESYES
NO
Trouble shooting 7
OUTDOOR UNIT Error Method:
Outdoor unit main PCB model
information error or communication error
Outdoor unit Main PCB
1. External cause (Noise, temporary open, voltage drop) 2. Main PCB failure
Check Point 1-1 : Reset Power supply and operate
Does Error indication show again?
Check Point 1-2 : Check external cause
Check if temporary voltage drop was not generated.
Check if momentary open was not generated.
Check if ground is connection correctly or there are no related
cables near the power line.
Change Main PCB.
02-09
Indicate or Display:
Refer to error code table.
When model information of EEPROM is incorrect at power ON.
If the above operation is repeated 3 times,
the compressor stops permanently.
Trouble shooting 8
INDOOR UNIT
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
OKOK
OKOK
PFC circuit error
Outdoor unit Main PCB
1. External cause 2. Connector connection failure 3. Main PCB failure
Check Point 2 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 3 : Replace Main PCB
If Check Point 1, 2 do not improve the symptom, change Main PCB.
Check Point 1 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)
Instant drop : Check if there is a large load electric apparatus in the same circuit.
Momentary power failure : Check if there is a defective contact or leak current
in the power supply circuit.
Noise : Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
02-10
When inverter output DC voltage is higher than 415V for over 3 seconds,
the compressor stops.
If the same operation is repeated 5 times, the compressor stops permanently.
Indicate or Display:
Refer to error code table.
02-11
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 1 : Replace Main PCB
Outdoor unit Main PCB
1. Main PCB failure
Change Main PCB.
Trouble shooting 9
OUTDOOR UNIT Error Method:
Trip terminal L error
Indicate or Display:
Refer to error code table.
When the signal from FO terminal of IPM in Main PCB is "L"(=0V)
while the compressor stops.
Trouble shooting 10
INDOOR UNIT
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
Check Point 3 :
64.22102.5130.9168.6218.6286.3Resistance Value (k )
Temperature
OKOK
OKOK
41.33
1.9563.4304.6396.3758.909Resistance Value (k )
Temperature
Discharge temp. sensor error
Outdoor unit Main PCB
Discharge pipe temperature thermistor
When Discharge pipe temperature thermistor open or short-circuit
is detected at power ON or while running the compressor.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
02-12
90°C
(194°F)
80°C
(176°F)
70°C
(158°F)
27.26
40°C
(104°F)
18.40
50°C
(122°F)
12.68
60°C
(140°F)
30°C
(86°F)
100°C
(212°F)
2.573
110°C
(230°F)
5°C
(41°F)
0°C
(32°F)
-5°C
(23°F)
-10°C
(14°F)
20°C
(68°F)
10°C
(50°F)
120°C
(248°F)
THERMISTOR
(PIPE)
THERMISTOR
(DISCHARGE)
THERMISTOR
(OUTDOOR)
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
1
2
3
4
1
2
3
4
1
2
3
1
2
3
CN71
CN70
Indicate or Display:
Refer to error code table.
Trouble shooting 11
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
6.1299.77512.4716.0520.8027.21Resistance Value (k )
Temperature
OKOK
OKOK
3.947
0.61150.85311.2131.7592.606Resistance Value (k )
Temperature
Outdoor unit Heat Ex. liquid temp.
sensor error
Outdoor unit Main PCB
Heat exchanger temperature thermistor
When Heat exchanger temperature thermistor open or
short-circuit is detected at power ON or while running the compressor.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
02-13
Indicate or Display:
Refer to error code table.
Check Point 3 :
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
THERMISTOR
(PIPE)
THERMISTOR
(DISCHARGE)
THERMISTOR
(OUTDOOR)
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
1
2
3
4
1
2
3
4
1
2
3
1
2
3
CN71
CN70
80°C
(176°F)
70°C
(158°F)
40°C
(104°F)
50°C
(122°F)
60°C
(140°F)
30°C
(86°F)
5°C
(41°F)
0°C
(32°F)
-5°C
(23°F)
-10°C
(14°F)
20°C
(68°F)
10°C
(50°F)
Trouble shooting 12
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
26.5334.5745.4060.2380.56109.0Resistance Value (k )
Temperature
OKOK
OKOK
20.56
6.4087.97810.0012.2616.04Resistance Value (k )
Temperature
Outdoor temp. sensor error
Outdoor unit Main PCB
Outdoor temperature thermistor
When Outdoor temperature thermistor open or short-circuit is
detected at power ON or while running the compressor.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
02-14
-15°C
(5°F)
-20°C
(4.0°F)
35°C
(95°F)
5.184
40°C
(104°F)
4.216
45°C
(113°F)
3.451
50°C
(122°F)
2.841
55°C
(131°F)
30°C
(86°F)
25°C
(77°F)
10°C
(50°F)
5°C
(41°F)
0°C
(32°F)
-5°C
(23°F)
-10°C
(14°F)
20°C
(68°F)
15°C
(59°F)
Indicate or Display:
Refer to error code table.
Check Point 3 :
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
THERMISTOR
(PIPE)
THERMISTOR
(DISCHARGE)
THERMISTOR
(OUTDOOR)
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
1
2
3
4
1
2
3
4
1
2
3
1
2
3
CN71
CN70
Trouble shooting 13
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 4 : Replace Main PCB
YES
NO
OK
Current sensor error
Outdoor unit Main PCB
Check Point 2 :
Check connections of Outdoor Unit Electrical Components
Check if connector is removed.
Check if the terminal connection is loose.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring,
reset the power.
Check Point 1-2 :
Check external cause at Indoor and Outdoor
(Voltage drop or Noise)
1. Defective connection of electric components 2. External cause 3. Main PCB failure
Instant drop : Check if there is a large load electric
apparatus in the same circuit.
Momentary power failure : Check if there is a defective
contact or leak current in the
power supply circuit.
Noise : Check if there is any equipment causing harmonic
wave near electric line.(Neon bulb or electric
equipment that may cause harmonic wave)
Check the complete insulation of grounding.
Check Point 1-1 : Reset Power Supply and operate
Does Error indication show again?
When Input Current Sensor has detected 0A, while Inverter Compressor is
operating at higher than 56rps, after 1minute upon starting the Compressor.
(Except during the defrost operation)
02-15
If Check Point 1, 2 do not improve the symptom, change Main PCB.
Indicate or Display:
Refer to error code table.
Trouble shooting 14
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Outdoor unit Main PCB
Compressor
Trip detection
02-16
Indicate or Display:
Refer to error code table.
When more than normal operating current to IPM in Main PCB flows,
the compressor stops.
After the compressor restarts, if the same operation is repeated
within 40sec, the compressor stops again.
If and repeats 5 times, the compressor stops permanently.
Forecast of Cause :
OK
OK
Check Point 4 : Replace Main PCB
OK
Check Point 1 : Check connections of Outdoor unit electrical components
1. Defective connection of electric components 2. Outdoor heat exchanger clogged 3. Compressor failure
4. Main PCB failure
Check if connector is removed.
Check if the terminal connection is loose.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Check Heat exchanger
Is there anything obstructing the air distribution circuit?
Is there any clogging of Outdoor Heat Exchanger?
Check Point 3 : Check Compressor
Check Compressor. (PARTS INFORMATION 2)
If Check Point 1 ~ 3 do not improve the symptom, change Main PCB.
Trouble shooting 15
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 : Check connection of around the Compressor components
OKOK
OKOK
Check Point 3: Replace Main PCB
Outdoor unit Main PCB
Compressor
Compressor rotor position
detection error
1. Defective connection of electric components 2. Main PCB failure 3. Compressor failure
If Check Point 1,2 do not improve the symptom, change Main PCB.
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
(Refer to PARTS INFORMATION 2)
For Compressor Terminal, Main PCB
If the detected rotor location is out of phase with actual rotor location
more than 90°, the compressor stops.
After the compressor restarts, if the same operation is repeated
within 40sec, the compressor stops again.
If and repeats 5 times, the compressor stops permanently.
02-17
Check Point 1 : Check Noise from Compressor
Turn on Power and check operation noise.
If an abnormal noise show, replace Compressor.
OKOK
Check Point 4: Replace Compressor
If Check Point 3 do not improve the symptom, change Compressor.
Indicate or Display:
Refer to error code table.
Trouble shooting 16
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
Check Point 3 : Check Outdoor unit fan motor
OK
OK
Outdoor unit fan motor error
Outdoor unit Main PCB
Outdoor unit Fan motor
1. Fan rotation failure 2. Motor protection by surrounding temperature rise 3. Main PCB failure
4. Outdoor unit fan motor
Check Point 1 : Check rotation of Fan
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
>>If Fan or Bearing is abnormal, replace it.
Check Outdoor unit fan motor. (PARTS INFORMATION 5)
>>If Outdoor unit fan motor is abnormal, replace Outdoor unit fan motor.
Check Point 4 : Check Output Voltage of Main PCB
Check outdoor unit circuit diagram and the voltage.
(Measure at Main PCB side connector)
If the voltage is not correct, replace Main PCB.
When outdoor fan rotation speed is less than 100rpm in 20 seconds
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60sec is repeated
3 times in a row, compressor and fan motor stops.
If and repeats 5 times in a row, compressor and fan motor stops
permanently.
Read wire DC voltage
Red - Black
White - Black
15 1.5V
02-18
CN800
1
2
3
4
5
6
7
BLACK
WHITE
YELLOW
RED
FM
FAN MOTOR
Check Point 2 : Check ambient temp. around motor
OK
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
>>Upon the temperature coming down, restart operation.
Indicate or Display:
Refer to error code table.
BROWN or BLUE
290V (AC115V-10%)~ 360V (AC115+10%)
Trouble shooting 17
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
OKOK
OKOK
4-way valve error
Indoor unit Controller PCB
Heat Ex. temperature thermistor
Room temperature thermistor
4-way valve
When the indoor heat exchanger temperature is compared with
the room temperature, and either following condition is detected
continuously two times, the compressor stops.
1. Connector connection failure 2. Thermistor failure 3. Coil failure 4. 4-way valve failure
5. Controller PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>> Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 3 : Check the solenoid coil and 4-way valve
Remove CN30 from PCB and check the resistance value of coil.
Resistance value is 1.88k 2.29k (at 20°C (68°F)).
>> If it is Open or abnormal resistance value, replace Solenoid Coil.
02-19
Cooling or Dry operation
[Indoor heat exchanger temp.] - [Room temp.] > 10degC (20°F)
Heating operation
[Indoor heat exchanger temp.] - [room temp.] < - 10degC (-20°F)
If the same operation is repeated 5 times,
the compressor stops permanently.
[ Solenoid coil ]
Check each piping temperature,
and the location of the valve by the temperature difference.
>> If the value location is not proper, replace 4-way valve.
[ 4-way valve ]
OKOK
Check Point 4 : Replace Controller PCB
If Check Point 1- 3 do not improve the symptom, replace Controller PCB.
Check Point 2 : Check each thermistor
Isn’t it fallen off the holder?
Is there a cable pinched?
>> Check characteristics of thermistor (Refer to Trouble shooting 5, 6),
If defective, replace the thermistor
Indicate or Display:
Refer to error code table.
Trouble shooting 18
INDOOR UNIT
OUTDOOR UNIT Error Method:
Discharge temperature error
02-20
Indicate or Display:
Refer to error code table.
<Cooling operation>
OK
OK
OK
OK
OK
<Heating operation>
Outdoor unit Main PCB
Discharge temperature thermistor
"Protection stop by "discharge temperature 110degC during compressor
operation"" generated 2 times within 24 hours.
Check Point 1 : Check if 3-way valve(gas side) is open.
Discharger thermistor characteristics check.
(Check by disconnecting thermistor from PCB.)
* For the characteristics of the thermistor, refer to the "Trouble shooting 10".
Check Point 4 : Check the discharge thermistor
Capillary tube, Strainer(after Capillary) clogging check.
Check Point 3 : Check the outdoor unit fan,heat exchanger
Check for foreign object at heat exchanger
Check if fan can be rotated by hand.
Motor check (PARTS INFORMATION 5)
Check Point 2 : Check the capillary tube, strainer
Check Point 5 : Check the refrigerant amount
Leak check
Capillary tube, Strainer(before Capillary) clogging check.
Check Point 2 : Check the capillary tube, strainer
If the 3-way valve(gas side) was closed, open the
3-way valve(gas side) and check operation.
Check Point 1 : Check if 2-way valve(liquid side) is open.
If the 2-way valve(liquid side) was closed, open the
2-way valve(liquid side) and check operation.
OK
Detective Actuators:
Detective details:
Forecast of Cause :
Refer to "Service Parts Information 3".
Refer to "Service Parts Information 3".
1. 2/ 3-way valve not opened 2. Capillary tube, strainer clogged
3. Outdoor unit operation failure, foreign matter on heat exchanger
4. Discharge temperature thermistor failure 5. Insufficient refrigerant
6. Main PCB failure
Trouble shooting 19
Forecast of Cause:
OKOK
Indoor Unit - No Power
1. Power supply failure 2. External cause
3. Electrical components defective
Check Point 1 : Check Installation Condition
Isn’t the breaker down?
Check loose or removed connection cable.
>>If abnormal condition is found, correct it by referring
to Installation Manual or Data & Technical Manual.
Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in
the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
02-21
2-3 TROUBLE SHOOTING WITH NO ERROR CODE
Check Point 3 : Check Electrical Components
YESYES
NO
Check the voltage of power supply.
>> Check if AC103 - 127V appears at Outdoor Unit Terminal L - N.
Check Fuse in Main PCB.
>> If Fuse is open, check if the wiring between Terminal and Main PCB
is loose, and replace Fuse.
Check Varistor in Main PCB.
>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power supply and replace Varistor.
Upon checking the normal power supply, replace Varistor.
OK
Trouble shooting 20
Forecast of Cause:
Check Point 3 : Check Electrical Components
OKOK
OKOK
YESYES
OK
NO
Check Point 1 : Check Installation Condition
Outdoor Unit - No Power
1. Power supply failure 2. External cause
3. Electrical Components defective
Isn’t the breaker down?
Check loose or removed connection cable.
>>If abnormal condition is found, correct it by referring
to Installation Manual or Data & Technical Manual.
Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
Check the voltage of power supply.
>> Check if AC103 - 127V appears at Outdoor Unit Terminal L - N.
Check Fuse in Main PCB.
>> If Fuse is open, check if the wiring between Terminal and Main PCB is loose,
and replace Fuse.
Check Varistor in Main PCB.
>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power supply and replace Varistor.
Upon checking the normal power supply, replace Varistor.
If the symptom does not change by above Check 3, replace Main PCB.
02-22
Trouble shooting 21
Forecast of Cause:
Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)
Check Point 1 : Check indoor and outdoor installation condition
OK
OK
OKOK
No Operation (Power is ON)
1. Setting/ Connection failure 2. External cause
3. Electrical component defective
Are these Indoor Unit, Outdoor Unit, and Remote Control suitable model numbers to connect?
>> If there is some abnormal condition, correct it by referring to Installation manual and
Data & Technical Manual.
Turn off Power and check/ correct followings.
Is there loose or removed communication line of Indoor Unit and Outdoor Unit?
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
02-23
If the symptom does not change by above Check 1, 2, replace Main PCB.
Attention
Trouble shooting 22
Forecast of Cause:
Check Point 2 : Check Outdoor unit operation
Check Point 1 : Check Indoor unit
Check Point 3 : Check Site condition
Check Point 5 : Check Refrigeration cycle
Check Point 4 :
Check Indoor/ Outdoor installation condition
Pipe (In) Pipe (Out)
Pipe (In) Pipe (Out)
OKOK
OKOK
OKOK
OKOK
MPa MPa
No Cooling / No Heating
1. Indoor Unit error 2. Outdoor unit error
3. Effect by surrounding environment
4. Connection pipe / Connection wire failure 5. Refrigeration cycle failure
Does Indoor unit Fan run on High fan?
Is Air filter dirty?
Is Heat exchanger clogged?
Check if Energy save function is operated.
Check if Outdoor unit is operating
Check any objects that obstruct the air flow route.
Check clogged Heat Exchanger.
Is the Valve open?
Is capacity of Indoor unit fitted to room size?
Any windows open? or direct sunlight ?
Check connection pipe
(specified pipe length & Pipe diameter?)
Check any loose or removed communication line.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data & Technical
Manual.
Check if Strainer is clogged (Refer to the figure at right).
Measure Gas pressure and if there is a leakage, correct it.
>> When recharging the refrigerant, make sure to perform
vacuuming, and recharge the specified amount.
Check Capillary tube (PARTS INFORMATION 3)
Check Compressor (PARTS INFORMATION 1,2)
Strainer normally does not have temperature difference
between inlet and outlet as shown in , but if there is a
difference like shown in , there is a possibility of inside
clogged. In this case, replace Strainer.
02-24
Trouble shooting 23
Forecast of Cause :
Trouble shooting 24
Forecast of Cause:
OK
OK
OK
OK
OKOK
OKOK
OKOK
MPa MPa
Abnormal Noise
1. Abnormal installation (Indoor/ Outdoor)
2. Fan failure (Indoor/ Outdoor)
3. Compressor failure (Outdoor)
Diagnosis method when abnormal noise is occurred
Abnormal noise is coming from Indoor unit.
(Check and correct followings)
Abnormal noise is coming from Outdoor unit.
(Check and correct followings)
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
Is Main unit installed in stable condition?
Is the installation of air suction grille and
front panel normal?
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
Is Main unit installed in stable condition?
Is Fan guard installed normally?
Check if vibration noise by loose bolt or contact noise
of piping is happening.
Is Compressor locked?
>> Check Compressor (PARTS INFORMATION 1,2)
Water Leaking
1. Erroneous installation 2. Drain hose failure
Diagnosis method when water is spitting out.
Is the filter clogged?
Check Gas pressure and correct it
if there was a gas leak.
Diagnosis method when water leak occurs
Is Drain hose connection loose?
Is there a trap in Drain hose?
Is Drain hose clogged?
Is Main unit installed in stable condition?
Is Main unit broken or deformed at the time of
transportation or maintenance?
Is Fan rotating?
02-25
SERVICE PARTS INFORMATION 1
MPa MPa
Compressor
Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting )
Does not start up
Is there open or loose connection
cable?
Check Main PCB, connection of
Compressor, and winding resistance.
(Refer to the next page).
Check Main PCB, connection of Compressor,and winding
resistance. (Refer to the next page).
>> If there is no failure, the defect of
Compressor is considered (Locked
compressor due to clogged dirt or
less oil)
Replace Compressor
Replace Compressor
Replace Compressor
Stops soon after starting up
Is there open or loose connection
cable?
Is Gas pipe valve open?
(Low pressure is too low)
Check if Refrigerant is leaking.
(Recharge Refrigerant)
Check if capillary tube, strainer is
clogged.
(PARTS INFORMATION 3)
>> If there is no failure, the defect of Compressor can be
considered. (Compression part broken or valve defective.)
Abnormal noise
Defective Compressor
can be considered.
(due to inside dirt clogging
or broken component)
Check if vibration noise by
loose bolt or contact noise
of piping is happening.
02-26
2-4 SERVICE PARTS INFORMATION
SERVICE PARTS INFORMATION 2
Check Point 1 : Check Connection
Check Point 2 : Check Winding Resistance
Check Point 3 : Replace Main PCB
C
S
R
Inverter Compressor
Check terminal connection of Compressor
(loose or incorrect wiring)
Check winding resistance of each terminal
If the resistance value is 0 or infinite, replace Compressor.
If the symptom does not change with above Check 1, 2, replace Main PCB.
02-27
S(V)
R(U)
(RED)
C(W)
(BLACK)
Terminal cover opened
(WHITE)
Resistance Value :
1.3 at 20°C (68°F)
SERVICE PARTS INFORMATION 3
Check Point 2 : Check Coil of EEV
Yellow - Red
Orange - Red
Blue - Red
White - Red
Read wire
46 4
Resistance value
Check Point 1 : Check Connections
Check Point 5 : Check Opening and Closing Operation of Valve
Check Point 3 : Check Voltage from Main PCB.
Check Point 4 : Check Noise at start up
Pipe (In)
Pipe (Out)
Hi TEMP.
Pipe (In)
Hi TEMP.
Normal TEMP.
CLOSE
Example : Hot Gas
OPEN
Example : Hot Gas
Pipe (Out)
Hi TEMP.
Pipe (In) Pipe (Out)
Pipe (In) Pipe (Out)
Check Point 6 : Check Strainer
DC
CN40
EXPANSION
VALVE COIL
EV
RED
BLUE
ORANGE
YELLOW
WHITE
1
2
3
4
5
at 20°C
Outdoor unit Electronic Expansion Valve
( EEV )
Check connection of connector (CN40)
( Loose connector or open cable )
Remove connector, check each winding
resistance of Coil.
If Resistance value is abnormal, replace EEV.
Remove Connector and check Voltage (DC12V)
If it does not appear, replace Main PCB.
Turn on Power and check operation noise.
If an abnormal noise does not show,
replace Main PCB.
When Valve is closed,
it has a temp. difference between Inlet and Outlet.
If it is open,
it has no temp. difference between Inlet and Outlet.
Strainer normally does not have temperature difference between inlet and outlet as shown in ,
but if there is a difference as shown in , there is a possibility of inside clogged. In this case, replace Strainer.
02-28
1
2
3
4
5
SERVICE PARTS INFORMATION 5
Check Point 1 : Check rotation of Fan
Outdoor unit fan motor
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
>>If Fan or Bearing is abnormal, replace it.
Check Point 2 : Check resistance of Outdoor Fan Motor
Refer to below. Circuit-test "Vm" and "GND" terminal.
(Vm: DC voltage, GND: Earth terminal)
>>If they are short-circuited (below 300 k ), replace Outdoor fan motor and Main PCB.
Pin number
(wire color)
Terminal function
(symbol)
1 (Red)
2
3
4 (Black)
5 (White)
6 (Yellow)
7 (Brown or Blue)
DC voltage (Vm)
No function
No function
Earth terminal (GND)
Control voltage (Vcc)
Speed command (Vsp)
Feed back (FG)
SERVICE PARTS INFORMATION 4
Check Point 1 : Check rotation of Fan
Indoor unit fan motor
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
>>If Fan or Bearing is abnormal, replace it.
Check Point 2 : Check resistance of Indoor Fan Motor
Refer to below. Circuit-test "Vm" and "GND" terminal.
(Vm: DC voltage, GND: Earth terminal)
>>If they are short-circuited (below 300 k ), replace Indoor fan motor and Controller PCB.
Pin number
(wire color)
Terminal function
(symbol)
1 (Blue)
2 (Yellow)
3 (White)
4 (Black)
5
6 (Red)
Feed back (FG)
Speed command (Vsp)
Control voltage (Vcc)
Earth terminal (GND)
No function
DC voltage (Vm)
02-29
3 . APPENDING DATA
R410A
WALL MOUNTED type
INVERTER
03-01
3-1. FUNCTION SETTING
Follow the instructions in the Local Setup Procedure, which is supplied with the remote control,
in accordance with the installed condition.
After the power is turned on, perform the Function Setting on the remote control.
The settings may be selected between the following two: Function Number or Setting Value.
Settings will not be changed if invalid numbers or setting values are selected.
3-1-1 INDOOR UNIT
( Factory setting)
Setting Description
Function Number Setting Value
Standard (400 hours)
Long interval (1000 hours)
Short interval ( 200 hours)
No indication
11
00
01
02
03
1-1. Setting the Filter Sign
The indoor unit has a sign to inform the user that it is time to clean the filter.
Select the time setting for the filter sign display interval in the table
below according to the amount of dust or debris in the room.
If you do not wish the filter sign to be displayed, select the setting value for "No indication".
( Factory setting)
Setting Description
Function Number Setting Value
Standard
Slightly lower control
Lower control
Warmer control
30
00
01
02
03
1-2. Cooling Room Temperature Correction
Depending on the installed environment, the room temperature sensor may require a correction.
The settings may be selected as shown in the table below.
( Factory setting)
Setting Description
Function Number Setting Value
Standard
Lower control
Slightly warmer control
Warmer control
31
00
01
02
03
1-3. Heating Room Temperature Correction
Depending on the installed environment, the room temperature sensor may require a correction.
The settings may be selected as shown in the table below.
03-02
( Factory setting)
Setting Description
Function Number Setting Value
Yes
No
40
00
01
1-4. Setting the Auto Restart
Enable or disable automatic system restart after a power outage.
*Auto restart is an emergency function such as for power failure etc.
Do not start and stop the indoor unit by this function in normal operation.
Be sure to operate by the control unit, or external input device.
( Factory setting)
Setting Description
Function Number Setting Value
A
B
C
D
44
00
01
02
03
1-5. Remote controller signal code
Change the indoor unit Signal Code, depending on the remote controllers.
The remote controller resets to signal code when the batteries in the remote controller are replaced.
If you use a signal code other than signal code , reset the signal code after replacing the batteries.
If you do not know the air conditioner signal code setting, try each of the signal codes ( )
until you find the code which operates the air conditioner.
The air conditioner signal code is set to prior to shipment.
Contact your retailer to change the signal code.
03-03
The function settings of the control of the indoor unit can be changed by this procedure according
to the installation conditions. Incorrect settings can cause the indoor unit malfunction.
After the power is turned on, perform the "FUNCTION SETTING" according to the installation
conditions using the remote controller.
The settings may be selected between the following two: Function Number or Setting Value.
Settings will not be changed if invalid numbers or setting values are selected.
Entering the Function Setting Mode
PREPARATION
While pressing the FAN button and SET TEMP.( ) button simultaneously,
press the RESET button to enter the function setting mode.
Turn on the power
*By turning on the power indoor units, so make sure the piping air-tight test and vacuuming
have been conducted before turning on the power.
*Also check again to make sure no wiring mistakes were made before turning on the power.
3-1-2 Procedures to change the Function Setting for wireless RC
STEP 1.
Setting the Remote controller Signal Code
(1) Press the SET TEMP.( ) ( ) button to change the signal code
between .
Match the code on the display to the air conditioner signal code.
(inituially set to )
(If the signal code does not need to be selected, press the MODE button and
proceed to STEP 2.)
(2) Press the MODE button to accept the signal code, and proceed to STEP 2.
Use the following steps to select the signal code of the remote controller.
(Note that the air conditioner cannot receive a signal code if the air conditioner
has not been set for the signal code.)
The signal code that is set through this process are applicable only to
the signal in the FUNCTION SETTING.
For details on how to set the signal code through the normal process,
refer to SELECTING THE REMOTE CONTROLLER SIGNAL CODE.
Note :
*1) Small " " is displayed on the right of the signal code during the FUNCTION SETTING.
FUNCTION SETTING METHOD (for Wireless remote controller)
*1
03-04
(2) Press the FAN button to proceed to setting the value.
(Press the FAN button again to return to the function number selection.)
STEP 2.
Selecting the Function Number and Setting Value
(5) Press the RESET button to cancel the function setting mode.
(6) After completing the FUNCTION SETTING, be sure to turn off the
power and turn it on again.
CAUTION
After turning off the power, wait 10 seconds or more before turning on it again.
The FUNCTION SETTING doesn't become effective if it doesn't do so.
(3) Press the SET TEMP.( ) ( ) buttons to select the setting value.
(Press the MODE button to switch between the left and right digits.)
Function
Number
(1) Press the SET TEMP.( ) ( ) buttons to select the function number.
(Press the MODE button to switch between the left and right digits.)
(4) Press the SLEEP button, then after you hear the beep emitted from
the indoor unit, press the START/STOP button to confirm the settings.
Setting Value
Note :
*1) Small " " is displayed on the right of the signal code during the FUNCTION SETTING.
*1 *1
03-05
(1) Press the MODE button for at least 5 seconds to display the current signal code.
(initially set to ).
(3) Press the MODE button again. The signal code will be changed.
(2) Press the SET TEMP.( ) ( ) button to change the signal code
between .
Match the code on the display to the air conditioner signal code.
If no buttons are pressed within 30 seconds after the signal code is displayed,
the display returns to the original status. In this case, start again from step 1.
Use the following steps to select the signal code of the remote controller.
(Note that the air conditioner cannot receive a signal code if the air conditioner
has not been set for the signal code.)
REMOTE CONTROLLER SIGNAL CODE SETTING
The remote controller resets to signal code when the batteries in the remote controller are replaced.
If you use a signal code other than signal code , reset the signal code after replacing the batteries.
If you do not know the air conditioner signal code setting, try each of the signal codes ( )
until you find the code which operates the air conditioner.
The air conditioner signal code is set to prior to shipment.
Contact your retailer to change the signal code.
-10.0 55.46
-30.0 977.6
-5.0 42.36 -25.0 713.2
0.0 32.67 -20.0 526.8
5.0 25.39 -15.0 392.1
10.0 19.91 -10.0 295.1
15.0 15.71 -5.0 223.3
20.0 12.5 0.0 170.7
25.0 10.0 5.0 131.4
30.0 8.051 10.0 102.1
35.0 6.52 15.0 79.81
40.0 5.316 20.0 62.9
45.0 4.354
0.76
0.95
1.17
1.41
1.67
1.94
2.22
2.50
2.77
3.03
3.26
3.48 25.0 49.84
30.0 39.78
35.0 31.92
40.0 25.8
45.0 20.94
50.0 17.11
55.0 14.05
60.0 11.6
63.0 10.36
0.24
0.33
0.43
0.56
0.72
0.91
1.13
1.38
1.64
1.92
2.21
2.50
2.78
3.05
3.30
3.52
3.72
3.90
4.06
4.14
Room temperature thermistor
Temp ( C)
Resistance(k )
Voltage(V)
Indoor heat exchanger thermistor
Temp ( C)
Resistance(k )
Voltage(V)
Discharge thermistor
Outdoor heat exchanger thermistor
Outdoor temperature thermistor
03-06
3-2. Thermistor Resistance Values
3-2-1 INDOOR UNIT
3-2-2 OUTDOOR UNIT
-30.0 920.3
-25.0 676.6
-20.0 503.5
-15.0 377.6
-10.0 286.3
-5.0 218.6
0.0 168.6
5.0 130.9
10.0 102.5
15.0 80.82
20.0 64.22
25.0 51.36
30.0 41.33
35.0 33.64
40.0 27.26
45.0 22.33
50.0 18.40
55.0 15.23
60.0 12.68
65.0 10.60
70.0 8.909
75.0 7.518
80.0 6.375
85.0 5.427
90.0 4.639
95.0 3.981
100.0 3.430
105.0 2.965
110.0 2.573
115.0 2.239
120.0 1.956
0.07
0.09
0.13
0.17
0.22
0.28
0.36
0.45
0.56
0.69
0.84
1.01
1.20
1.39
1.61
1.84
2.07
2.30
2.53
2.75
2.97
3.17
3.35
3.53
3.69
3.83
3.96
4.07
4.17
4.27
4.35
Temp ( C)
Resistance(k )
Voltage(V)
-30.0 87.21
-25.0 64.16
-20.0 47.78
-15.0 35.86
-10.0 27.21
-5.0 20.80
0.0 16.05
5.0 12.47
10.0 9.775
15.0 7.709
20.0 6.129
25.0 4.903
30.0 3.947
35.0 3.196
40.0 2.606
45.0 2.135
50.0 1.759
55.0 1.457
60.0 1.213
65.0 1.015
70.0 0.8531
75.0 0.7206
80.0 0.6115
0.26
0.34
0.45
0.58
0.74
0.93
1.14
1.38
1.64
1.91
2.18
2.46
2.73
2.99
3.23
3.45
3.65
3.83
3.98
4.12
4.24
4.34
4.43
Temp ( C)
Resistance(k )
Voltage(V)
-30.0 205.7
-25.0 148.8
-20.0 109.0
-15.0 80.56
-10.0 60.23
-5.0 45.40
0.0 34.57
5.0 26.53
10.0 20.56
15.0 16.04
20.0 12.26
25.0 10.00
30.0 7.978
35.0 6.408
40.0 5.184
45.0 4.216
50.0 3.451
55.0 2.841
0.78
1.02
1.30
1.61
1.94
2.29
2.63
2.95
3.25
3.52
3.79
3.96
4.14
4.28
4.40
4.50
4.59
4.65
Temp ( C)
Resistance(k )
Voltage(V)
1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan
Mar. 2012 Printed in Japan
Loading...