05-231 Mini ECO-i T/D-3 p1-38

Technibel Page 26
Control of Mini Multiset
3. Wired Remote Controller
Wired Remote Controller / K70D036Z
■ How to Use the Wired Remote Controller
●
This remote control unit can be used to operate up to 8 indoor units.
Once the operation settings are made, the units can be operated by
simply pressing the ON/OFF operation button.
●
In the SPW-AS, U, D, F and FM series, the flap position is not shown on
the display.
●
The SPW-DR764/964GXH56 does not have a dry function.
O: Remote control sensor
B: Operation lamp
A: ON/OFF operation button
J: TIMER SET button
E: FAN SPEED selector
button
K: Time setting buttons
3
G: CHECK button
C: MODE button
N: VENTILATION button
D: Temperature setting
buttons
F: FILTER button
L: SET button
H: UNIT button
M: CL button
I: FLAP button
A: ON/OFF operation button
This button is for turning the air conditioner on and off.
B: Operation lamp
This lamp lights when the air conditioner is turned on.
This lamp blinks when an error occurs or a protective device is activated.
C: MODE button
Use this button to select one of the following 5 operating modes.
(AUTO)
: Used to automatically set cooling or heating operation. Only for single
heat pump type.
(Temperature range: 17 to 27°C)
(HEAT)
: Used for normal heating operation. Only for heat pump type.
(Temperature range: 16 to 30°C)
(DRY)
: Used for dehumidifying without changing the room temperature.
(Temperature range: 18 to 30°C)
(COOL)
: Used for normal cooling operation.
(Temperature range: 18 to 30°C)
(FAN)
: Used to run the fan only, without heating or cooling operation.
D: Temperature setting
buttons
: Press this button to increase the temperature setting.
: Press this button to decrease the temperature setting.
E: FAN SPEED selector button
(AUTO)
(HI)
(MED)
(LO)
: The air conditioner automatically decides the fan speeds.
: High fan speed
: Medium fan speed
: Low fan speed
3 - 26
Technibel
Page 27
Control of Mini Multiset
3. Wired Remote Controller
F: FILTER button
This button is used to turn off the filter sign ( ). When the filter sign appears
on the display, clean the filter, and then press this button to turn off the sign.
G: CHECK button
This button is used only when servicing the air conditioner.
CAUTION
Do not use the CHECK button for normal operation.
H: UNIT button
When more than one indoor unit is connected, this button is used to select a
unit when adjusting the airflow direction.
If no unit is selected, the airflow direction of all units can be adjusted
concurrently using the FLAP button.
I:
1. Use this button to set the airflow direction to a specific angle.
The airflow direction is displayed on the remote control unit.
FLAP button
Operation mode
(COOL) or (DRY)
(HEAT) or
(FAN)
(AUTO)
Cooling mode:
Heating mode:
CAUTION
●
●
NOTE
(SWEEP)
Number of airflow direction settings
3
5
3
5
In the Cool mode and Dry mode, if the flaps are set in a downward
position, condensation may form and drip around the vent.
Do not move the flap with your hands.
This function is available only for models X, LD, S, T and K.
2. Use this button to make the airflow direction sweep up and down
automatically.
Press this button several times until the
symbol appears on the
display.
To stop the swing operation
Press the FLAP button again during the flap swing operation to stop the flap
at the desired position. Then, the airflow can be set from the top position by
pressing the FLAP button again.
Indicator when swing operation is stopped
Fan and heating
Cooling and drying
During cooling and drying, the flap does not stop at the downward position.
Even if the flap is stopped at the downward position during the swing
operation, it does not stop until it moves to the third position from the top.
NOTE
This function is available only for models AWS,ASS,FC,ACS
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3
Technibel
Page 28
Control of Mini Multiset
3. Wired Remote Controller
J: TIMER SET button
(OFF Timer)
(OFF Cycle Timer)
(ON Timer)
K: Time setting buttons
3
Use this button while the unit is operating to switch between timer settings.
:
The air conditioner stops after a preset time elapses.
: The air conditioner always stops after a preset time elapses.
:
The air conditioner starts after a preset time elapses.
: Press this button to increase the time.
tton to decrease the time.
: Press this butt
L: SET button
Use this button to set the timer.
M: CL button
Use this button to clear the timer setting.
N: VENTILATION button
This is used when a ventilation fan (available commercially) is connected.
Pressing the VENTILATION button turns the fan on and off. The ventilation
fan also turns on and off when the air conditioner unit is turned on and off.
(The display of the remote control unit shows “
” while the ventilation fan
is running.)
* If “ ” is shown on the display of the remote control unit when the
VENTILATION button is pressed, this indicates that the ventilation fan is
not connected.
O: Remote control sensor
Normally, the temperature sensor of the indoor unit is used to detect the
temperature. However, it is also possible to detect the temperature around
the remote control unit.
For details, contact the dealer where you made the purchase.
(Do not set when using group control.)
NOTE
1) When 2 remote control units are being used in one group control*
system,
a) the most recent button that is pressed on any remote control unit is
effective.
b) either a main-remote control unit or a sub-remote control can set the
timer.
* Group control means that maximum up to 8 indoor units can be
concurrently controlled with a remote control unit.
2) If a power failure occurs in timer mode, the time counted up to that point
will be stored in memory.
After power is restored, the timer starts again counting up to the set time.
3 - 28
Technibel Page 29
Control of Mini Multiset
3. Wired Remote Controller
■ Display
F
B
C
H
N
J
K
D
O
G E
I
M
A
L
Description
A: When the unit is in heating standby status, the
indicator appears.
While this indicator is displayed, the indoor fan turns off or on at low fan
speed.
B: The currently selected operation mode is displayed.
* The SPW-DR764/964GXH56 shows the dry indicator, but it does not
have a dry function.
C: This is displayed if a different operation mode was selected already by
another remote control unit and indicates that the mode cannot be
changed.
D: After turning on the mains power switch for the first time,
indicator
blinks on the display of the remote control unit. While this is displayed, the
system is automatically checking units, and so wait until the
indicator turns off to operate the remote control unit. When the TIMER
SET button is pressed to set the timer, the
indicator flashes.
E: The currently selected FAN SPEED, fan angle and SWEEP status are
displayed.
F: This is displayed only if an abnormality occurs within a unit.
G: When the CHECK button is pressed for more than 4 seconds, the TEST
indicator appears. Then, press the ON/OFF operation button to start test
run.
H: This is displayed to indicate that the system controller is being used for
control. When
is flashing on the display, the operation is not accepted
by the system controller.
I: This displays the unit number of the indoor unit selected with the unit
selection button or the indoor/outdoor unit where an error is indicated.
Unit No.
1 – 2
Indoor unit No.
Refrigerant circuit No.
J: This is displayed if it is time to clean the filter.
K: When setting the timer, the selected timer mode is displayed. This displays
the time of the timer. (An alarm message is displayed when an error
occurs.) Pressing the TIMER SET button cycles through the options in this
order:
No Display
L: This is displayed when using the remote control unit sensor.
M: This is displayed if a function is unavailable when a button is pressed.
N: This displays the temperature setting.
O: This is displayed when a connected ventilation fan (available
commercially) is operating.
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3
Technibel
Page 30
Control of Mini Multiset
3. Wired Remote Controller
■ Setting the Timer
Using the timer
Set the timer during air conditioner operation.
Recommended usage
Time indicator of timer
Timer indicator
3
Display
To stop the air conditioner after a preset time
elapses
OFF timer
To always stop the air conditioner after a preset
time elapses
OFF cycle
timer
To start the air conditioner after a preset time
elapses
ON timer
Each time
is pressed, the time setting increases at 0.5-hour (30 minute)
intervals. The upper limit is 72.0 hours.
Each time
is pressed, the time setting decreases at 0.5-hour (30 minute)
intervals. The lower limit is 0.5 hours.
The timer cycles through the following options each time
SET button) is pressed.
(TIMER
No display
OFF timer
Use this mode to turn off the unit automatically after a preset time elapses.
OFF
ON
Set time
OFF cycle timer
OFF
OFF
ON
Use this mode to always turn off the unit automatically after a preset time
elapses.
ON
Set time
Set time
ON timer
Use this mode to start the unit automatically after a preset time elapses.
OFF
ON
Set time
NOTE
When 2 remote control units are being used, either a main remote control
unit or a sub remote control unit can be used for timer operations.
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Technibel
Page 31
Control of Mini Multiset
3. Wired Remote Controller
How to set the OFF timer (
)
Example: Stopping the air conditioner after 3.5 hours of operation
Operation
Indication
1. Press the ON/OFF button once to
start the air conditioner.
2. Press the TIMER SET button to
select the
mode.
The
and time
indications (hour) flash.
button until 3.5 is
3. Press the
displayed.
Press the
button if the set time
is exceeded.
4. Press the SET button to set the
OFF timer.
How to set the OFF cycle timer (
)
3
Example: Always stopping the air conditioner after 3.5 hours of operation
Operation
1. Press the ON/OFF button to start the air conditioner.
2. Press the TIMER SET button twice to select the
3. Set the time using the
or
mode.
button.
4. Press the SET button to set the OFF cycle timer (
NOTE
How to set the ON timer (
).
When the OFF cycle timer is set, the unit will always stop after 3.5 hours of
operation.
)
Example: Starting the air conditioner 10.5 hours after the ON time setting
Operation
Indication
1. Press the ON/OFF button to start
the air conditioner.
2. Press the TIMER SET button to
select
mode.
The
and time
indications (hour) flash.
3. Press the
button until 10.5 is
displayed.
Press the
button if the set time
is exceeded.
4. Press the SET button to set the ON
timer.
NOTE
Canceling timer operation
When the ON timer is set, the unit enters the paused state.
Press the CL button to cancel operation. The time setting is canceled, and
the timer indicator no longer appears on the display.
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Technibel
Page 32
Control of Mini Multiset
3. Wired Remote Controller
■ How to Install the Remote Controller
CAUTION
Remote controller wiring can be extended to a maximum of 1,000 m.
●
CAUTION
●
●
3
Do not twist the control
wiring with the power
wiring or run it in the
same metal conduit,
because this may cause
malfunction.
Do not supply power to the
unit or try to operate it until
the tubing and wiring to the
outdoor unit is completed.
Opening for switch box
M4 × 25
screws (2)
Install the remote controller away from sources
of electrical noise.
Remote
controller
Spacer
Under case
(Back case)
Decorative
cover
Install a noise filter or
take other appropriate
action if electrical noise
affects the power supply
circuit of the unit.
Accessories for remote controller switch
The mounting position for the remote controller
should be located in an accessible place for control.
Never cover the remote controller or recess it into the
wall.
No.
1
(1) When you open the decorative cover, you will see 2
gaps under the remote controller. Insert a coin into
these gaps and pry off the back case.
2
Supplied parts
Remote controller
switch
(with 200 mm
wire)
Small screws
M4 × 25
Supplied parts
Q’ty No.
Q’ty
Spacers
1
2
4
Wire joints
2
2
5
When Using a Wall Box for Flush Mounting
Wood screws
If local codes allow, this remote controller can be
mounted using a conventional wall box for flush
mounting.
3
(2) Attach the back case with the 2 small screws provided. Using a screwdriver, push open the cut-outs
on the back case. These holes are for screws.
Use the spacers and take care not to tighten the
screws excessively. If the back case will not seat
well, cut the spacers to a suitable thickness.
2
Diagram of outer dimensions
4
2.7
●
(3) Connect the remote controller wiring (3 wires) correctly to the corresponding terminals in the electrical component box of the indoor unit.
When wiring, do not connect the remote controller
wires to the adjacent terminal block for the power
wiring. Otherwise, the unit
will break down.
120
CAUTION
120
(4) To finish, fit the back tabs of the case into the
remote controller and mount it.
3 - 32
16
Technibel
Page 33
Control of Mini Multiset
3. Wired Remote Controller
■ Basic Wiring Diagram
CAUTION
Install wiring correctly
(incorrect wiring will damage the equipment).
Remote
control wiring
Standard
Group
control Connection wiring remote control
Multiple
remote control
for group control
●
Use shielded wires for remote control wiring and
ground the shield on both sides. Otherwise misoperation due to electrical noise may occur.
1 2
Terminal
3P
1 2
1 2
Indoor unit
No. 2
1 2
Indoor unit
No. 1
1 2
1 2
1 2
1 2
Indoor unit
No. 3
1 2
1 2
Indoor unit
No. 8
1 2
1 2
Shielded wire
1 2
Outdoor unit
Ground
Inter-unit control wiring
: Ground
Inter-unit wiring
Indoor
unit 1
Indoor
unit 2
Indoor
unit 7
Indoor
unit 8
Group-control wiring
(Main) (Sub)
■ Wiring System Diagram for Group Control
This diagram shows when several units (maximum of
8) are controlled by a remote controller (main unit). In
this case, a remote controller can be connected at
any indoor unit.
Remote
controller
1 2
Terminal
3P
Wiring procedure
Each successive unit will respond at 1-second
intervals following the order of the group address
when the remote controller is operated.
1 2
1 2
Indoor unit
No. 2
Indoor unit
No. 3
Indoor unit
No. 8
1 2
1 2
1 2
1 2
Inter-unit
control
wiring
1 2
Outdoor unit
Group control using 2 remote controllers
It does not matter which of the 2 remote controllers
you set as the main controller.
When using multiple remote controllers (up to 2 can
be used), one serves as the main remote controller
and the other as the sub-remote controller.
1 2
Indoor unit
No. 1
Wire according to the diagram at right:
●
1 2
Connection wiring for
group control
Remote
controller
(main)
12
(sub)
Connection wiring
for group control
12
3P terminal
base for remote
control wiring
12
Indoor unit
No. 1
: Ground (earth)
3 - 33
12
Indoor unit
No. 2
12
Indoor unit
No. 3
12
Indoor unit
No. 8
3
Technibel
Page 34
Control of Mini Multiset
3. Wired Remote Controller
Setting the main and sub remote controllers
1. Set one of the 2 connected remote controllers as the main remote controller.
2. On the other remote controller (sub-remote controller), switch the remote controller address connector on the
rear of the remote controller PCB from Main to Sub. When the connector has been switched, the remote controller will function as the sub-remote controller.
The sub-remote controller will also operate when connected to the indoor unit (indoor unit 2 or 3).
TIMER
TMNL.
To Service Technicians
To display the sensor temperature:
Press both
and
buttons on the
remote controller for more than 4 seconds
together.
Change the sensor address (CODE NO.)
with
/
(SET TEMP) buttons.
Select the UNIT NO. that you want to call
with
button.
Press the
button to finish service mode.
RCU.Main
RCU.CK
RCU.Sub
3
RCU
TMNL.
RCU.ADR
To display the trouble history:
Press both
and
buttons on the
remote controller for more than 4 seconds
together.
Change the alarm message:
/
(SET TEMP) buttons
CODE NO.
(New) (Old)
Press the
button to finish service
mode.
Changing method for room
temperature sensor (from Indoor
unit to RCU)
1 On the remote controller, press
+
+
at the same time for
more than 4 seconds.
Set
CODE
No.
with
/
2
(SET TEMP) button.
3 Set DATA from
with
To avoid an electric shock hazard,
WA R N I N G DO NOT touch any ter-
4 Press
minal on the Printed Circuit Board with a metal rod, a
screwdriver edge or bare hand
when power
is supplied.
Finally, Press
NOTE
Cautions on group control
●
Group control within the same refrigerant tubing system is recommended.
[Tubing system which is NOT recommended]
Outdoor units
Tubing
system 2
Tubing system 1
2
1
3
2
1
Group 3
3
4
5
6
2
1
Group address
3
2
1
Group 2
Indoor Units
Group 1
Remote
controller
Group 4
<Example 1> In the Mini ECO-i system, group control
extending over tubing systems
becomes impossible to set, which
means the indoor units cannot operate.
While Group 4 is in heating operation, if later Group 3
begins cooling operation, indoor units 1, 2 of Group 3
can be operated, but the indoor units 3-6 of Group 4
cannot operate.
3 - 34
/
to
(TIMER) button.
Remote controller
address connector
Remote Controller (Main)
Remote Controller (Sub)
Technibel
Page 35
Control of Mini Multiset
3. Wired Remote Controller
■ Switching the Room Temperature Sensors
Room temperature sensors are contained in the indoor unit and in the remote controller.
One or the other of the temperature sensors is used for operation. Normally, the indoor unit sensor is set; however,
the procedure below can be used to switch to the remote controller sensor.
(1) Press and hold the
+
+
buttons for 4 seconds or longer.
NOTE
●
The unit No. that is initially displayed is the indoor unit address of the group control main unit.
●
Do not press the
button.
(2) Use the temperature setting
(3) Use the timer time
/
/
buttons to select item code 32.
buttons to change the setting data from 0000 to 0001.
(4) Press the
button. (The change is completed when the display stops blinking.)
(5) Press the
button.
The unit returns to normal stop status. At this time, “Remote controller sensor” is displayed on the LCD.
NOTE
●
If 2 remote controllers are used for control, this setting can be made from either the main or sub remote controller. However, the temperature sensor that is used is the sensor in the main remote controller.
●
When group control is used, the remote controller sensor will not function unless the group address is set to the
address of the main indoor unit.
●
If both the remote sensor and remote controller are used, do not use the temperature sensor in the remote controller.
■ Connecting to a Ventilation Fan
If a commercially available ventilation fan or similar device is run from the ventilation fan output terminal (FAN
DRIVE: 2P (white), DC 12 V) (Note) on the indoor unit PCB, use the
button to enable fan operation and
change the settings.
(1) Press and hold the
+
+
buttons for 4 seconds or longer.
NOTE
●
The unit No. that is initially displayed is the indoor unit address of the group control main unit.
●
Do not press the
button.
(2) Use the temperature setting
(3) Use the timer time
/
/
buttons to select item code 31.
buttons to change the setting data from 0000 to 0001.
(4) Press the
button. (The change is completed when the display stops blinking.)
(5) Press the
button.
The unit returns to normal stop status. Press the
button and check that “Fan” is displayed on the LCD display.
(Note) A special adapter (optional) is required to convert the signal for use at the no-voltage A contact.
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3
Technibel Page 36
Control of Mini Multiset
3. Wired Remote Controller
■ Wiring the Remote Controller
<Flush Mounting>
● Connection diagram
Approx.
200 mm
Terminal board for
indoor unit remote
controller wiring
W
BK
1
2
Connector
Remote controller wiring
(field supply)
1
2
Remote
controller
unit
Power wire from remote
controller unit
● Use 0.5 mm2 – 2 mm2 wires.
(1) Strip the insulation to approximately 14 mm from
the ends of the wires that will be connected.
Provided wire joint
(white)
Remote controller wiring
(2) Twist together the 2 wires and create a crimp
connection at the wire joint.
3
(3) If a special crimping tool is not used, or if the connection is soldered, insulate the wires using insulation tape.
Power wire from
remote controller
unit
Wire joint
CE-1, white
● Use the remote controller cord (optional) for remote
controller wiring.
(1) Disconnect the lead wire that is wound around the
lead wire anchor on the remote controller unit. Disconnect the connector and connect the remote
controller cord (optional) to the connector on the
remote controller unit. Insert the remote controller
cord (optional) into the groove and bend it into the
correct shape, then wind it around the lead wire
anchor.
(2) If the remote controller cord (optional) is used,
refer to the installation manual that is provided
with the cord.
Connector
Lead wire anchor
Remote controller cord (optional)
3 - 36
Technibel
Page 37
Control of Mini Multiset
3. Wired Remote Controller
■ Meaning of Alarm Messages
Table of Self-Diagnostics Functions and Description of Alarm Displays
Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also
displayed on the wired remote controller.
●
LED 1 and 2 (D72 and D75) alarm displays
LED 1
Alarm contents
LED 2
Alarm display
Alternating
(
LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm 6: L alarm
N = Alarm No.
Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.
Alarm is "P17."
: Blinking)
Alarm
message
Possible cause of malfunction
Serial communication errors
Mis-setting
Remote controller is detecting
error signal from indoor unit.
Error in receiving serial communication signal.
(Signal from main indoor unit in case of group control)
Ex: Auto address is not completed.
Error in transmitting serial communication signal.
Indoor unit is detecting error signal from remote controller (and system controller).
Indoor unit is detecting error
signal from outdoor unit.
Error in receiving serial communication signal.
When turning on the power supply, the number of connected
indoor units does not correspond to the number set. (Except R.C.
address is “0.”)
Error of the outdoor unit in receiving serial communication signal
from the indoor unit.
Improper setting of indoor unit or Indoor unit address setting is duplicated.
remote controller.
Remote controller address connector (RCU. ADR) is duplicated.
(Duplication of main remote controller)
Error in driver communication signal for DC Inverter Fan.
Starting auto. address setting is prohibited.
During auto. address setting,
number of connected units does This alarm message shows that the auto address connector CN100
not correspond to number set.
is shorted while other RC line is executing auto address operation.
When turning on the power
supply, number of connected
units does not correspond to
number set.
(Except R.C. address is “0.”)
Indoor unit communication error
of group control wiring.
Improper setting.
Error in auto. address setting. (Number of connected indoor units
is less than the number set)
Error in auto. address setting. (Number of connected indoor units
is more than the number set)
No indoor unit is connected during auto. address setting.
Error of outdoor unit address setting.
Error of main indoor unit in receiving serial communication signal
from sub indoor units.
This alarm message shows when the indoor unit for multiple-use
is not connected to the outdoor unit.
Duplication of main indoor unit address setting in group control.
Duplication of outdoor R.C. address setting.
(See note)
<E01>
<E02>
<<E03>>
E04
<E06>
E08
<<E09>>
E10
E12
E15
E16
E20
E25
E18
L02
<L03>
L04
There are 2 or more indoor units Priority set remote controller
controllers which have operation
mode priority in 1refrigerant circuit. Non-priority set remote controller
L05
Group control wiring is connected to individual control indoor unit.
L07
Indoor unit address is not set.
L06
L08
Capacity code of indoor unit is not set.
<<L09>>
Capacity code of outdoor unit is not set.
L10
Mis-match connection of outdoor units which have different kinds
of refrigerant.
L17
4-way valve operation failure
L18
Continued
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3
Technibel Page 38
Control of Mini Multiset
3. Wired Remote Controller
Alarm
message
Possible cause of malfunction
Activation of
protective
device
Thermistor
fault
3
Protective device in outdoor unit
is activated.
Indoor thermistor is either open
or damaged.
Outdoor thermistor is either
open or damaged.
Thermal protector in indoor unit fan motor is activated.
Improper wiring connections of ceiling panel.
<<P01>>
<<P09>>
Float switch is activated.
Incorrect discharge temperature.
High pressure switch is activated.
<<P10>>
P03
P04
Outdoor unit fan motor is unusual.
P22
Compressor running failure resulting from missing phase in the
compressor wiring, etc. (Start failure not caused by IPM or no gas.)
P16
Overcurrent at time of compressor runs more than 80Hz (DCCT
secondary current or ACCT primary current is detected at a time
other than when IPM has tripped.)
P26
IPM trip (IPM current or temperature)
H31
Inverter for compressor is unusual. (DC compressor does not
operate.)
P29
Indoor coil temp. sensor (E1)
Indoor coil temp. sensor (E2)
Indoor coil temp. sensor (E3)
Indoor suction air (room) temp. sensor (TA)
Indoor discharge air temp. sensor (BL)
Comp. No. 1 discharge gas temp. sensor (T,D)
Outdoor No. 1 coil gas temp. sensor (C1)
Outdoor air temp. sensor (T,O)
Compressor suction temperature sensor (T,S)
High pressure sensor
(See Note)
F29
EEPROM on indoor unit PCB failure
Protective
device for
compressor is
activated
Protective device for compressor
is activated.
<<F01>>
<<F02>>
<<F03>>
<<F10>>
<<F11>>
F04
F06
F08
F12
F16
EEPROM on the outdoor unit PCB has failed.
Overload current is detected.
Lock current is detected.
Current is not detected when comp. is ON.
F31
H01
H02
H03
Discharge gas temperature of the comp. is not detected. Temp.
sensor is not seated at the sensor holder.
H05
Alarm messages displayed on system controller
Serial
communication
errors
Mis-setting
Activation of
protective
device
Error in transmitting serial
communication signal
Indoor or outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, outdoor unit
and system controller.
C05
Error in receiving serial
communication signal
Indoor or outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, outdoor unit
and system controller.
CN1 is not connected properly.
C06
Protective device of sub indoor When using wireless remote controller or system controller, in
unit in group control is activated. order to check the alarm message in detail, connect wired
remote controller to indoor unit temporarily.
NOTE
1. Alarm messages in << >> do not affect other indoor unit operations.
2. Alarm messages in < > sometimes affect other indoor unit operations depending on the fault.
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P30
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