Fujitsu AU G18LVLB Series Original operating manual

SPLIT TYPE
ROOM AIR CONDITIONER
Models
AO* G18LBCB
SERVICE
INSTRUCTION
R410A
AU* G18LVLB
AR* G18LLTB
AB* G18LVTB
Floor Ceiling type
Slim Duct
type
Cassette type
AR* G18LSLAP
Duct type
Indoor unit Outdoor unit
INVERTER

CONTENTS
1. DESCRIPTION OF EACH CONTROL OPERATION
1-1.COOLING OPERATION.............................................................................................
1-3. DRY OPERATION......................................................................................................
1-2. HEATING OPERATION..............................................................................................
1-5. INDOOR FAN CONTROL...........................................................................................
1-4. AUTO CHANGEOVER OPERATION.........................................................................
1-7. LOUVER CONTROL...................................................................................................
1-6. OUTDOOR FAN CONTROL.......................................................................................
1-9. TIMER OPERATION CONTROL................................................................................
1-8. COMPRESSOR CONTROL........................................................................................
1-11. TEST OPERATION CONTROL..................................................................................
1-10. ELECTRONIC EXPANSION VALVE CONTROL.......................................................
1-13. 4-WAY VALVE EXTENSION SELECT.......................................................................
1-12. PREVENT TO RESTART FOR 3 MINUTES (3 MINUTES ST)..................................
1-18. ECONOMY OPERATION...........................................................................................
1-14. AUTO RESTART........................................................................................................
1-21. DRAIN PUMP OPERATION.......................................................................................
1-19. FRESH AIR CONTROL..............................................................................................
1-22. DEFROST OPERATION CONTROL..........................................................................
01-01
01-02
01-02
01-03
01-05
01-09
01-10
01-13
01-14
01-18
01-18
01-18
01-19
01-20
01-20
01-21
1-20. EXTERNAL ELECTRICAL HEATER CONTROL........................................................ 01-20
01-22
1-23. OFF DEFROST OPERATION CONTROL.................................................................. 01-24
1-24. VARIOUS PROTECTIONS......................................................................................... 01-25
1-25. FORCED COOLING OPERATION............................................................................. 01-26
1-26. COMPRESSOR STOP CONTROL............................................................................. 01-26
01-18
1-15. MANUAL AUTO OPERATION.................................................................................... 01-19
1-16. COMPRESSOR PREHEATING..................................................................................01-19
1-17. 10°C HEAT OPERATION........................................................................................... 01-20
2-1-2 WIREDREMOTE CONTROLLER DISPLAY......................................................
2-1-1 INDOOR UNIT & WIRED REMOTE CONTROLLER DISPLAY..........................
2-1 ERROR DISPLAY ......................................................................................................
2. TROUBLE SHOOTING
2-2 TROUBLE SHOOTING WITH ERROR CODE ..........................................................
2-3 TROUBLE SHOOTING WITH NO ERROR CODE ....................................................
2-4 TROUBLE SHOOTING WITH ERROR CODE(For WIRELESS LAN ADAPTER).....
02-01
02-01
02-02
2-1-3 WIRELESS LAN INDICATOR DISPLAY.............................................................02-03
2-1-4 MOBILE APP DISPLAY(For AIR CONDITIONER)..............................................02-04
2-1-5 MOBILE APP DISPLAY(In WIRELESS LAN CONTROL SYSTEM)....................02-05
02-37
02-11
02-42
2-5 SERVICE PARTS INFORMATION ............................................................................ 02-50

R410A
F L O O R C E IL IN G / SLIM DUCT
MINI DUCT / CASSETTE type
IN V E R T E R
1 . DESCRIPTION OF EACH
CONTROL OPERATION

1-1. C OOLING OPE RA TION
1-1-1 C OOL ING C A PAC ITY C ONTROL
A sensor (room temperature thermistor) built in the indoor unit will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
The maximum frequency is limited in the range shown in Figure 1 based on the fan speed mode
and the outdoor temperature.
* If the room temperature is 2 degC higher than a set temperature,
the compressor operation frequency will attain to maximum frequency.
* If the room temperature is 2.5 degC lower than a set temperature, the compressor will be stopped.
* When the room temperature is between +2 degC to -2.5 degC of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
minimum
frequency
maximum
frequency
18rps 103rps
Outdoor air
temperature A zone
B zone
C zone
D zone
E zone
F zone
Hi Me Lo Quiet
A zone 103rps
49~56rps
74rps
38rps
49rps
29rps
25rps
18rps
B zone
C zone
D-F zone
( Table 1 : Compressor Frequency Range )
( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )
01-01
Fan speed
mode
When the room
temperature rises
When the room
temperature drops
36°C
32°C
21°C
12°C
2°C
34°C
30°C
19°C
10°C
0°C
103rps 74rps 49rps 25rps
80rps 49rps 38rps 25rps

1-2. HE A TING OPE RA TION
1-2-1 HE A TING C A PAC ITY C ONTROL
A sensor (room temperature thermistor) built in the indoor unit 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 3 degC than a set temperature,
the compressor operation frequency will attain to maximum frequency.
* If the room temperature is higher 2.5 degC than a set temperature, the compressor
will be stopped.
* When the room temperature is between +2.5 degC to -3 degC of the setting temperature,
the compressor frequency is controlled within the range shown in Table2.
( Table 2 : Compressor Frequency Range )
01-02
minimum
frequency
maximum
frequency
8rps 120rps
Operating
frequency
25 rps
1-3. DRY OPE RATION
1-3-1 INDOOR UNIT C ONTROL
The compressor rotation frequency shall change according to set temperature and room
temperature variation which the room temperature sensor of the indoor unit has detected
as shown in the Fig 2.
Room
temperature Room temperature
Compressor ON
Ts-0.5 degC
Ts-1.5 degC
Compressor OFF
( Table 3 : Compressor frequency )
( Fig.2 : Compressor Control based on Room Temperature )
Ts : Setting temperature

1-4. A UTO C HA NG E OVE R OPE RA TION
01-03
When the air conditioner is set to the Auto mode by remote controller, operation starts in the optimum
mode from among the Heating, Cooling, Dry and Monitoring mode. During operation, the
optimum mode is automatically switched in accordance with temperature changes. The temperature
can be set between 18°C and 30°C in 1°C steps.
When operation starts, indoor fan and outdoor fan are operated for
around 2 minutes (AB type, AR type), or 3 minutes (AU type).
Room temperature and outdoor temperature are sensed,
and the operation mode is selected in accordance with the table below.
<Monitoring mode>
Cooling mode
25°C
Heating mode
( Table 4 : Operation mode selection table )
Room temperature (TR)
TR> Ts + 2°C
Ts + 2°C TR Ts - 2°C
* Middle zone
TR < Ts - 2°C Heating
When Cooling or Dry mode was selected at and air flow mode is Auto, the air conditioner operates as follow.
The same operation as COOLING OPERATION AND DRY OPERATION.
When the room temperature has remained at set temperature -1.5°C,
operation is automatically switched to Dry mode.
If the room temperature reaches set temperature +2°C during Dry mode, operation returns to Cooling.
1
1
2
( Fig. 3 : Outdoor temperature zone selection )
Cooling
(Autmatic dry)
Operation mode
* If it's Middle zone, operation mode of indoor unit is selected as below.
(1). Same operation mode is selected as outdoor unit.
If outdoor unit is operating in Cooling, Dry, and Heating mode,
indoor unit will be operated by the same operation mode.
(2). Selected by the outdoor temperature.
If outdoor unit is operating in other than Cooling, Dry, and Heating mode,
indoor unit will be operated according to the outdoor temperature as below.
Cooling
Cooling
Dry
Dry
Compressor stop
When the room
temperature drops
When the room
temperature rises
Ts + 2°C
Ts - 0.5°C
Ts - 1.5°C
Ts + 1°C
Ts - 1.5°C
Ts - 2.5°C
( Fig.4 : Auto changeover : Cooling - Dry )
TR : Room temperature
Ts : Setting temperature
TR : Room temperature
Ts : Setting temperature
( Air flow mode : Auto )
When Heating was selected at , the same operation as HEATING OPERATION of page
01-02 is performed.
When the compressor was stopped for 6 consecutive minutes by the temperature control function
after the Cooling(Auto:Dry) or Heating mode was selected at above, operation is switched
to Monitoring and the operation mode is selected again.
3
1
4
1

01-04
START
Room temp.
Ts + 2
°C ?
COOLING (AUTO:DRY)
OPERATION
HEATING OPERATION
YES
YES
NO
NO
NO
AUTO CHANGEOVER operation flow chart
T S : Setting temperature
Room temp.
Ts - 2
°C ?
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
NO
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
Middle zone
NO
Operation mode
of outdoor unit : Cooling or Dry?
YES
NO
Operation mode
of outdoor unit : Heating?
YES
NO
YES
Outdoor temperature
25°C?
NO
YES
YES
NO
YESYES

1-5. INDOOR FAN CONTROL
1. Fan speed
( Table 5 : Indoor Fan Speed )
01-05
Operation mode Air flow mode Speed (rpm)
1040
1000
950
800
740
500
300
1040
950
800
740
500
740
300
Dry
Monitoring
Cooling
Fan
Heating
AB*G18LVTB
*Note, during Economy operation and operation
mode is Fan, air flow is 1 step downs.
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)
Hi
Me+
Me
Lo
Quiet
Cool air prevention
S-Lo
Hi
Me
Lo
Quiet
*Soft Quiet
Auto
S-Lo
Operation mode Air flow mode Speed (rpm)
1380
1300
1220
1140
600
1380
1300
1220
1140
600
1140
600
Dry
Monitoring
Cooling
Fan
Heating
AR*G18LLLA
Hi
Me
Lo
Quiet
S-Lo
Hi
Me
Lo
Quiet
*Soft Quiet
Auto
S-Lo
*Note, during Economy operation and operation
mode is Fan, air flow is 1 step downs.
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > S-Lo)
Operation mode Air flow mode Speed (rpm)
1290
1060
800
730
530
Dry
Monitoring
Cooling
Fan
Heating
AR*G18LSLAP
Hi
Me
Lo
Quiet
S-Lo
Hi
Me
Lo
Quiet
Auto
S-Lo
S-Lo
1290
1060
800
730
530
730
530
2. FA N OPE RA TIO N
The airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH,
while the indoor fan only runs.
When Fan mode is set at (Auto), it operates on [MED] Fan Speed.
*Note, during Economy operation and operation
mode is Fan, air flow is 1 step downs
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)
Operation mode Air flow mode Speed (rpm)
830
770
730
630
500
400
300
730
630
540
460
400
460
300
Dry
Monitoring
Cooling
Fan
Heating
AU*G18LVLB
Hi
Me+
Me
Lo
Quiet
Cool air prevention
S-Lo
Hi
Me
Lo
Quiet
*Soft Quiet
Auto
S-Lo
*Note, during Economy operation and operation
mode is Fan, air flow is 1 step downs
(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)

6. HEATING OPERATION (Auto : Heating)
01-06
3. COOLING OPERATION (Auto : Cooling)
( Fig.5 : Airflow change - over ( Cooling : AUTO ) )
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
TR-Ts > - 1.5 degC
=
- 2.5 degC > TR-Ts
- 1.5 degC > TR-Ts > - 2.5 degC
=
TR-Ts > 2 degC
=
1 degC > TR-Ts
2 degC > TR-Ts > 1 degC
=
TR-Ts > 2.5 degC
=
1.5 degC > TR-Ts
2.5 degC > TR-Ts > 1.5 degC
=
TR-Ts > - 1 degC
=
- 2 degC > TR-Ts
- 1 degC > TR-Ts > - 2 degC
=
High mode
Med mode
Low mode
( Fig.7 : Airflow change - over ( Heating : AUTO ) )
When the room
temperature rises
When the room
temperature drops TR : Room temperature
Ts : Setting temperature
Low mode
Med mode
High mode
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 5.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 7.
On the other hand, if switched [HIGH] [QUIET], the indoor motor will run at a constant airflow of [HEAT]
operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
4. DRY OPERATION (Auto : Dry)
Refer to Table 6. During the dry mode operation, the fan speed setting can not be changed.
Compressor
ON
OFF
Indoor fan
Dry air flow
S-Lo
OFF
( Fig.6 : Indoor Fan Control )
10 30 60 180 60 180 60 10 30 (SEC)
5. INDOOR UNIT FAN CONTROL FOR ENERGY SAVING (Cooling mode)
Switch the airflow at cooling mode, and the indoor fan motor will run as shown in Fig.6.
It depends on the Function setting "Indoor unit fan control for energy saving."

7. COOL AIR PREVENTION CONTROL (Heating mode)
01-07
The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.
When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.
( Fig.8 : Cool Air Prevention Control )
*Hi
or setting fan mode
*Lo
or setting fan mode
37°C
29°C
32°C
24°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
During Normal Heating operation During 10°C Heat operation
7-2. F or A R *G18L L L A / A R*G 18LS LA P
39°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Lo 34°C
Auto
42°C
30°C
34°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Hi
*Me+
or setting fan mode
*Lo
or setting fan mode
Cool air
prevention
39°C
37°C
37°C
32°C
24°C
S-Lo
S-Lo
37°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Lo 32°C
Auto
39°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Lo 34°C
Auto
During Normal Heating operation During 10°C Heat operation
7-1. F or A B *G 18L VTB
42°C
30°C
34°C
Indoor heat exchanger
temperature rises Indoor heat exchanger
temperature drops
Hi
*Me+
or setting fan mode
*Lo
or setting fan mode
Cool air
prevention
39°C
37°C
37°C
32°C
24°C
S-Lo
During Normal Heating operation During 10°C Heat operation
7-3. F or A U*G 18L VL B
*Lower speed is selected.
*Lower speed is selected.
*Lower speed is selected.

1-6. OUTDOOR FAN CONTROL
1. Outdoor Fan Motor
Follow
S-Hi2
S-Hi1
Hi
9
10
8
7
6
5
4
ing table shows the fan speed of the outdoor unit.
01-08
( Table 6
-
1000
850
770
630
440
320
1000
1000
900
850
620
550
470
: Fan speed of the outdoor unit )
Cooling / Dry
Y zone Z zone
Ambient Temperature zone
F zone G zone
Y zone
Z zone
F zone
21°C
12 °C
19°C
10°C
-
-
-
-
-
-
Heating
G zone
2 °C
0°C
3
2
1
440
440
440
-
-
-
- - - -
850
320
320
320
320
320
320
270
270
270
270
270
270
270
270
270
230
230
230
230
230
230
1100
1100
1100
1100
1000
800
770
700
630
550
470
440
420
( Table 7 : Fan speed when starting up outdoor fan )
The outdoor fan speed is changed in the range of the speed shown in the above table,
based on the frequency of the compressor.
(When the compressor frequency increases, the outdoor fan speed is also changed to
higher speed. If the compressor frequency decreases, the outdoor fan speed is changed
to the lower speed as well.)
After starting up the outdoor fan, it operates with the following speed for initial 20 seconds.
After operating the defrost control on heating mode, the fan speed becomes 190rpm when
However, it returns to the normal speed control when the defrosting operation does not function
for 240 minutes after releasing the defrost operation or when the outdoor temperature sensor
detection value becomes higher than 2°C.
Outdoor temperature
Over than 12°C
Less than 12°C
Fan speed
500 rpm
230 rpm
the outdoor temperature is below 1°C until the HEX(outlet)temperreaches 0°C.

1-7. L OUVE R C ONTROL
01-09
1-1. VE RTIC A L L OUVE R C ONTRO L
Each time the button is pressed, the air direction range will change as follows:
Use the air direction adjustments within the ranges shown above.
The vertical airflow direction is set automatically as shown, in accordance with the type of operation
selected.
Cooling / Dry / Fan mode Horizontal flow
Heating mode Downward flow
(Function Range)
(Fig.9 : Air Direction Range)
(Operation Range)
1-2. SWING OPE RA TION
When the swing signal is received from the remote controller, the vertical louver starts to swing.
The range of swing depends on the set airflow direction.
When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted
and the louver stops at the memorized position.
( Stop mode means Operation stop.)
During Cooling/Dry mode :
During Heating mode :
Fan mode :
During AUTO mode operation, for the first minute after beginning operation, air-flow will be horizontal
; the air direction cannot be adjusted during this period.
The type of operation
Cooling/Dry
Range of swing
to
Heating to
567
567
7
567
FAN( ) to
to
7
3
7
3
to
FAN( )
to
7
5
1. For Ceiling Type < AB*G18LVTB >

01-10
1-3. HORIZONTAL LOUVER CONTROL
Each time the button is pressed, the air direction range will change as follows:
(Function Range)
(Fig.10 : Air Direction Range)
1-4. SWING OPE RA TION
When the swing signal is received from the remote controller, the horizontal louver starts to swing.
The range of swing depends on the set airflow direction.
When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted
and the louver stops at the memorized position.
( Stop mode means Operation stop.)
The type of operation
Cooling/Dry
Range of swing
to
Heating to
5
FAN to
5
RIGHT/LEFT air direction louvers
Use the air direction adjustments within the ranges shown above.
The remote control unit's display does not change.
5
5
(All range)
(All range)
(All range)

01-11
2-1. VERTICAL LOUVER CONTROL
Each time the button is pressed, the air direction range will change as follows:
Use the air direction adjustments within the ranges shown above.
The vertical airflow direction is set automatically as shown, in accordance with the type of operation
selected.
Cooling / Dry / Fan mode Horizontal flow
Heating mode Downward flow
(Function Range)
(Fig.11 : Air Direction Range)
(Operation Range)
2-2. SWING OPE RA TION
When the swing signal is received from the remote controller, the vertical louver starts to swing.
The range of swing depends on the set airflow direction.
When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted
and the louver stops at the memorized position.
1
2
3
4
( Stop mode means Operation stop.)
During Cooling/Dry mode/Fan mode :
During Heating mode :
During AUTO mode operation, for the first minute after beginning operation, air-flow will be horizontal
; the air direction cannot be adjusted during this period.
The type of operation
Cooling/Dry/Fan
Range of swing
to
to
Heating
2. For Cassette Type <
AU*
G
18LVLB >

1-8. COMPRESSOR CONTROL
1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in Table 8.
Cooling / Dry Heating
Min Max Min Max
(Table 8 : Compressor Operation Frequency Range)
2. OPERATION FREQUENCY CONTROL AT START UP
The allowable maximum compressor frequency after the start up is shown in Figure 12.
(Fig.12 : Compressor Control at Start-up)
40rps
60sec 240sec 280sec
56rps
01-12
18rps 103rps 8rps 120rps
77rps
360sec 400sec
90rps
99rps

01-13
AR-WAE1E
1. ON / OFF TIMER
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 weekly timer allows up to two ON and OFF time to set up per day.
Use this timer function to set operating time for each day of the week.
Operation mode
The operating time can be set in 30 min increments only.
The OFF time can be carried over to next day.
The ON timer and the OFF timer functions cannot be set with using the weekly timer.
Both ON and OFF time must be set.
2. WE E K L Y TIME R
2-1. WEEKLY TIMER
Stop mode Stop mode Stop mode
Operation mode Operation mode
Set time Set time Set time Set time
1-9-1 Wired Remote C ontroller
ON / TIMER
OFF / TIMER
WEEKLY TIMER
TEMPERATURE SET BACK TIMER
1-9. TIMER OPERATION CONTROL

01-14
The DAY OFF setting is only available for days for which weekly settings already exist.
The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop
air conditioner operation.
The SET BACK timer can be set to operate up to two times per day but only one temperature setting
can be used.
During the COOL/DRY mode, the air conditioner will operate at a minimum of 18°C even if
the SET BACK temperature is set to 17°C or lower.
The DAY OFF setting can only be set one time. The DAY OFF setting is cancelled automatically
after the set day has passed.
Normal
Next day setting
If the operating time carries over to the next day (during a next day setting), the effective
DAY OFF range will be set as shown below.
2-2. DAY OFF setting
3. TEMPERATURE SET BACK TIMER
Stop mode Stop mode
Operation mode
Stop mode
Operation mode
Preceding day Next day
DAY OFF
Stop mode Stop mode
Operation mode
Stop mode
Operation mode
DAY OFF
Setting day
Preceding day Next daySetting day
Case of SET BACK timer on the Cooling operation.
( Setting temperature :22°C, SET BACK temperature :26°C)
SET BACK setting
Operation
temperature
Operation
temperature
26°C
22°C
26°C
22°C
24°C
*1
ON OFF OFFON
*1: During the SET BACK function,
the setting temperature is changed.
Chenge the setting temperature:
22°C 24°C

01-15
3. SL E E P TIME R
If the sleep timer 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 degC.
It increases the setting temperature another 1 degC after 1 hour.
After that, the setting temperature is not changed and the operation is stopped at the time
of timer setting.
Ts
+1degC
+2degC
-2degC
-1degC
-4degC
-3degC
Set 60min
In the heating operation mode
When the sleep timer is set, the setting temperature is decreased 1 degC.
It decreases the setting temperature another 1 degC every 30 minutes.
Upon lowering 4 degC, the setting temperature is not changed and the operation stops
at the time of timer setting.
Set 30min 30min 30min

1-10. ELECTRONIC EXPANSION VALVE CONTROL
1-11. TE ST OPE RA TION C ONTROL
Under the condition where the air conditioner stops, press the MODE button and the FAN button
simultaneously for 2 seconds or more, and the test operation control mode will appear.
During test running, " " will display on the remote controller display.
Set the test operation mode, and the compressor will continue to run regardless of whatever
the room temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
The compressor won't enter operation status for 3 minutes after the compressor is stopped,
even if any operation is given.
1-12. PRE VE NT TO RE S TA RT FOR 3 MINUTE S ( 3 MINUTE S S T )
01-16
With Wired Remote Controller
The most proper opening of the electronic expansion valve is calculated and controlled under the
present operating condition based on the following values.
The compressor frequency, the temperatures detected by the discharge temperature sensor, the
indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor.
Pulse range
52 480 pulse
(1) Pulse range of EEV
(2) The EEV is set up at 480 pulses when the compressor is stopped.
(3) Intialization (
(3-wire)
(2-wire)
Input of 528 pulses toward closing direction) is operated under
the following condition.
* When the power is turned on.
* 4 hours has passed since the last initialization, and 3 minutes has passed after the compressor stop.
(If 12 hours has passed since the last initialization, the compressor is compulsorily stopped.)
Cooling/ Dry
Heating
Operation
Under the condition where the air conditioner runs, press the TEST RUN button, and
the test operation control mode will appear.
During test running, the operation lamp and timer lamp of the air conditioner body twinkle simultaneously.
Set the test operation mode, and the compressor will continue to run regardless of whether the room
temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
With Wireless Remote Controller
At the time when the air conditioner is switched from the cooling mode to heating mode,
the compressor is stopped, and the 4-way valve is switched in 3 minutes later after the compressor stopped.
1-13. 4-WAY VALVE EXTENSION SELECT
With Wired Remote Controller
With “Monitor Mode Screen” displayed, press and hold the [MENU] button,
[<] button and [ENTER] button simultaneously for at least 2 seconds.
Setting item selection screen is displayed.
Select the number”09” of the item to be set with the [< ] or [> ] button,
press the [ENTER] button to switch to the Setting Screen.
The test operation screen is displayed.
Press the [ENTER ] button to test operation begins.
Test operation is completed after about an hour.

1-14. A UTO RE S TA RT
01-17
1-15. MANUAL AUTO OPERATION (When using the Wireless RC)
If MANUAL AUTO Button is set, the operation is controlled as shown in Table 10.
If the remote control is lost or battery power dissipated, this function will work without the remote control.
Operation mode Auto changeover
Auto
Normal
Normal
Continuous (No timer setting available)
24°C
(Table 10)
Setting temp.
Vertical louver
Horizontal louver
OFF
Economy
OFF
Swing
Fan control mode
Timer mode
1-16. COMPRESSOR PREHEATING
When the outdoor heat exchanger temperature is lower than - 4°C (5°C:JM2 Open) 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 heat exchanger temperature rises up, preheating is ended.
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 resumed with
the memorized operation contents.
(Table 9 : Operation contents memorized when the power is interrupted)
Operation mode
Set temperature
Set air flow
Set air flow direction
Swing
Economy operation
10°C Heat operation
Thermistor detected position
Timer mode
Wireless remote
controller
Wired remote controller
(Memory Backup : Disable)
Wired remote controller
(Memory Backup : Enable)
OFF Timer
ON Timer
WEEKLY Timer
Temperature
: Memorize
: Not memorize
*It is necessary to set on the DIP-SW1-No,6 of the wired remote controller, to enable the memory backup.
Refer to the installation manual of wired remote controller for details.
SET BACK Timer