Fujitsu UTY-RNN*M series Installation Manual

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PART NO. 9373328162-04

AIR CONDITIONER
REMOTE CONTROLLER
(WIRED TYPE)
UTY-RNNM

INSTALLATION MANUAL

For authorized service personnel only.

MANUEL D'INSTALLATION

Pour le personnel agréé uniquement.

MANUALE D'INSTALLAZIONE

Ad uso esclusivo del personale autorizzato.

РУКОВОДСТВО ПО УСТАНОВКЕ

Для уполномоченного персонала.

INSTALLATIONSANLEITUNG

Nur für autorisiertes Personal.

MANUAL DE INSTALACIÓN

Solo para personal autorizado.

MANUAL DE INSTALAÇÃO

Apenas para técnicos autorizados.

ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ

Για εξουσιοδοτημένο προσωπικό σέρβις.

MONTAJ KILAVUZU

Yetkili servis personeli içindir.

安裝說明書

只限授權服務人員。

En-1

INSTALLATION MANUAL

PART NO. 9373328162-04
AIR CONDITIONER REMOTE CONTROLLER
(WIRED TYPE)

Contents

1. SAFETY PRECAUTIONS .............................................. 1

2. ACCESSORIES ............................................................. 1

3. ELECTRICAL REQUIREMENT ...................................... 1

4. SELECTING AN INSTALLATION LOCATION

4.1. Dimensions ............................................................. 2

4.2. Name of parts ......................................................... 2

5. INSTALLING THE REMOTE CONTROLLER

5.1. Installation ..................................................................3

5.2. Setting the DIP switch ............................................ 3

5.3. Connection of Remote Controller Cable ................. 4

6. INSTALLATION METHODS

6.1. Group control .......................................................... 4

6.2. Dual remote control ................................................ 4

7. TURNING ON THE POWER .......................................... 5

8. SETTING THE ROOM TEMPERATURE

DETECTION LOCATION ..................................................5

9. FUNCTION SETTING .................................................... 5

10. TEST OPERATION ........................................................ 7

11. ERROR CODES ............................................................ 8

1. SAFETY PRECAUTIONS

Let the customer keep this installation manual because it is needed •
when the air conditioner or remote controller is serviced or moved.

WARNING

This mark indicates procedures which, if improp­erly performed, might lead to the death or serious
injury of the user.

For the air conditioner to operate satisfactorily, install it as outlined in •
this installation manual.

Installation work must be performed in accordance with national wiring •
standards by authorized personnel only.

Do not turn on the power until all installation work is complete.•

CAUTION

This mark indicates procedures which, if improp­erly performed, might possibly result in personal
harm to the user or damage to property.

When detecting the room temperature using the remote controller, •
please set up the remote controller according to the following
conditions. If the remote controller is not located properly, the correct
room temperature will not be detected, and thus abnormal conditions
like “not cooled” or “not heated” will occur even if the air conditioner is
running normally.

Locate where an average temperature •
for the room being air-conditioned will be
sensed.

Do not locate directly exposed to the outlet •
air from the air conditioner.

Locate out of direct sunlight.•
Locate away from the infl uence of other •

heat sources.

Do not touch the remote controller PC board and •
PC board parts directly with your hands.

Do not wire the remote controller cable and the bus wire together with •
or parallel to the connection cables, transmission cables, and power
supply cables of the indoor and outdoor units. It may cause erroneous
operation.

When installing the bus wire near a source of electromagnetic waves, •
use shielded wire.

Do not set the DIP switches, either on the air conditioner or the remote •
controller, in any way other than indicated in this manual or the manual
that is supplied with the air conditioner. Doing so may result in an
improper operation.

Temperature senso

r

2. ACCESSORIES

The following installation parts are supplied. Use them as required.

Name and Shape Q’ty Application

Installation manual

1

This manual

Operating manual

1

Instruction book for operation

Remote controller cable

1

For connecting the remote
controller

Connecting cable

1

For connecting the remote control­ler cable to the wall mounted type
and the fl oor type indoor unit

Tapping screw (M4 x 16mm)

2

For installing the remote controller

Binder

1

For remote controller and remote
controller cable binding

Tapping screw (M4 x 14mm)

1

For installing the remote controller
cable to the indoor unit

Cable clamper

1

For installing the remote controller
cable to the indoor unit

3. ELECTRICAL REQUIREMENT

When connecting the remote controller use the following wiring.

Cable Cable size Remarks

Remote controller

cable

22AWG

Sheathed PVC cable,

Polar 3 core

Use Sheathed PVC

cable in accordance with

local rules for cable.

* We recommend that you purchase our service parts for the remote control-

ler cable. Contact service personnel to purchase this.

En-2

Display panel ●

16 17 18 19

20

21

22 23 24 25 26 27 28

1

“ ”, “ ” (Set Temperature Button)

2

“ ” (Timer Mode/Clock Adjust Button)

3

“ ” (Day/Day OFF Button)

4

“ ” (Set Back Button)

5

“ ”, “ ” (Set Time Button)

6

“ ” (Timer Delete Button)

7

“ ” (Timer Set Button)

8

“ ” (Start/Stop Button)

9

“ ” (Mode Button)

10

“ ” (Fan Control Button)

11

“ ” (Horizontal airfl ow direction and swing Button)

12

“ ” (Vertical airfl ow direction and swing Button)

13

“ ” (Economy/Thermo Sensor Button)

14

“ ” (Maintenance/Filter Reset Button)

15

Operation Lamp

16

Day Display

17

Operation Lock Display

18

Temperature Display

19

Fan Speed Display

20

Timer Mode Display

21

Operation Mode Display

22

Timer and Clock Display

23

Filter Display

24

Economy Display

25

Thermo Sensor Display

26

Vertical Swing Display

27

Horizontal Swing Display

28

Defrost Display

4. SELECTING AN INSTALLATION
LOCATION

4.1. Dimensions

120

120

18

83.5

15.3

63.5

Hole

4.5

9

12.5

45.3

Hole× 2

Hole

×

3

4.5

4.5

6

30 33.5

23

Unit: mm

4.2. Name of parts

With cover open ●

1

2

3
4

5

6

7

8

9

10

11

12

13
14

15

Display panel

En-3

Remote controller

Wrap the connector and remote controller
cables with vinyl tape or some other type
of insulation as shown in the fi gure.

Earth (Ground) the remote controller if it has an earth (a ground) cable.

5.2. Setting the DIP switch

CAUTION

Install the remote controller wires so as not to be direct touched with •

your hand.

• Do not touch the remote controller PC board and PC board parts
directly with your hands.

Set the remote controller DIP switches.
Set DIP switch 1 - NO.6 to ON.
For the other switch, set it according to the situation.

[Example]

DIP switch 1

Front case (back side)

ONOFF

1
2
3
4
5
6

Do not use this
DIP switch 2

NO.

Switch state

Detail

OFF ON

DIP switch 1

1

Cannot be used. (Do not
change)

2

Dual remote controller
setting
* Refer to 6.2. Dual

remote control in

6. INSTALLATION
METHODS.

3

Follow the

selection in

9.FUNCTION
SETTING

Invalidity

Filter reset operation
and fi lter display

4

Cannot be used. (Do not
change)

5

Cannot be used. (Do not
change)

6

Invalidity

Validity

Memory backup setting
* Set to ON to use bat-

teries for the memory
backup. If batteries are
not used, all of the set­tings stored in memory
will be deleted if there
is a power failure.

(

Factory setting)

5. INSTALLING THE REMOTE
CONTROLLER

5.1. Installation

5.1.1. INSTALLING THE REMOTE CONTROLLER

Open the operation panel on the front of the remote controller, remove the
2 screws indicated in the following fi gure, and then remove the front case of
the remote controller.

When installing the remote controller, remove the connector from the
front case.
The wires may break if the connector is not removed and the front case
hangs down.
When installing the front case, connect the connector to the front case.

Fig. 1

SET BACK

Front case
(back side)

Rear case

Screws

Connector

When remote controller cable is embedded
(1) Embed the remote controller cable and box.
(2) Pass the remote controller cable through the hole in the rear case and

connect the remote controller cable to the remote controller terminal
board specifi ed in Fig. 2.

(3) Clamp the remote controller cable sheath with the binder as shown in

Fig. 2.
(4) Cut off the excess binder.
(5) Install the rear case to the wall, box, etc., with 2 screws (Fig. 3).

Fig. 2

Binder

1. 12V
(Red)

2. Signal
(White)

3. COM
(Black)

Hole

CAUTION

When connecting the remote
controller cables, do not over
tighten the screws.

777

Unit : mm

1. 12V
(Red)

2. Signal
(White)

3. COM
(Black)

Fig. 3 [Example]

Remote controller
cable

Box

Screw

s

Connector

Rear
case

En-4

5.3. Connection of Remote Controller Cable

CAUTION

When connecting the remote controller cable to the wall mounted type •
and the fl oor type indoor unit, do not connect it to the outdoor unit or
the indoor unit power terminal block. It may cause a failure.

There are 2 methods to connect the remote controller cable to the indoor
unit. One is the connection using contained connecting cable and the other
is the connection the remote controller cable is connected to the exclusive
terminal block of the indoor unit.
Exclusive terminal block for remote controller connection method is different
depending on each model. Modify the remote controller cable as per below
description and connect it.
(For the details, refer to the installation manual of the indoor unit to be used.)

5.3.1. WHEN CONNECTING TO THE WALL

MOUNTED TYPE AND THE FLOOR TYPE
CONNECTOR

Connect the remote controller cable to the connecting cable and insert it to
the connector.

Pattern 1

PCB

Connecting cable

Remote controller
cable

Indoor unit

Outdoor
unit /
power
supply
terminal
block

Connector

Pattern 2

PCB

Connecting cable

Remote controller

cable

Indoor unit

Outdoor
unit /
power
supply
terminal
block

Connector

Communication

kit (option)

Modify the cable as per below methods.
(1) Use a tool to cut off the terminal on the end of the remote controller cable

and then remove the insulation from the cut end of the cable as shown

in Fig. 1.
(2) Connect the remote controller cable and connecting cable as shown in

Fig. 2.
(3) Be sure to insulate the connection between the cables.

Connecting
cable

Connector

Fig. 1 Fig. 2

White

Red

White

Red

Black

Black

Insulated
connection

Remote
controller cable

Remote
controller cable

20 mm

5.3.2. WHEN CONNECTING TO THE EXCLUSIVE

TERMINAL BLOCK

Connect the end of remote controller cable directly to the exclusive terminal
block.

Terminal block

M4 screw

3
2
1

*

* Earth (Ground) the remote
controller if it has an earth
(a ground) wire.

Black
White
Red

Indoor unit
side

PCB

Indoor unit

Outdoor unit /
power supply
terminal block

Remote controller
terminal block

Remote controller
cable

It may be failed if it is connected to the outdoor unit or the terminal block

for power supply.

d

6. INSTALLATION METHODS

6.1. Group control

A number of indoor units can be operated at the same time using a single •
remote controller.
Depending on the model, some indoor units cannot be connected for •
group control. (Group control is available for the duct type, the cassette
type and the ceiling type indoor unit.)
Some functions may become unusable, depending on the combination of •
the indoor units that are connected in a group.

(1) Wiring method (indoor unit to remote controller)

EXAMPLE: Single Type

Remote controller

Remote controller
cable

Indoor unit 0 Indoor unit 1 Indoor unit 2 Indoor unit 3

123

123

123 123 123

When there is an earth (a ground) cable.

(2) Indoor unit address setting

Set each indoor unit address using the DIP switch of each indoor unit.
(Refer to the installation manual for the indoor unit.)

6.2. Dual remote controllers

Depending on the model, some indoor units cannot be connected for dual •
remote controllers. (Dual remote controllers are available for the duct
type, the cassette type and the ceiling type indoor unit.)
Two separate remote controllers can be used to operate the indoor units.•
The timer and self-diagnosis functions cannot be used on the slave units.•

(1) Wiring method (indoor unit to remote controller)

Remote controller cabl

e

Indoor unit

Slave unitMaster unit

1 231 23

1 2 3

Remote controller

When there are
earth (ground)
cables.

En-5

(2) Remote controller DIP switch 1 setting

Set the remote controller DIP switch 1-No. 2 according to the following

table.

Number of remote

controllers

Master unit Slave unit

DIP Switch 1-No. 2 DIP Switch 1-No. 2

1 (Normal) OFF –

2 (Dual) OFF ON

7. TURNING ON THE POWER

CAUTION

Recheck the wiring. Incorrect wiring will cause trouble.•

(1) Check the remote controller wiring and DIP switch settings.
(2) Install the front case.

* When installing the front case, connect the connector to the front case

(in 5. INSTALLING THE REMOTE CONTROLLER).

(3) Check the indoor and outdoor unit wiring and circuit board switch

settings, and then turn on the indoor and outdoor units. After “

” has
fl ashed on the set temperature display for several seconds, the clock
display will appear in the center of the remote controller display.

SUMOTUWETH FR

SA

8. SETTING THE ROOM TEMPERATURE
DETECTION LOCATION

The detection location of the room temperature can be selected from the •
following 2 examples. Choose the detection location that is best for the
installation location.

A. Indoor unit setting (factory setting)

The room temperature is detected by the indoor unit temperature sensor.
(1) When the “

” button is pressed, the lock

display fl ashes because the function is locked at the factory.

A

Indoor unit

B. Indoor unit/remote controller setting (room temperature sensor
selection)

The temperature sensor of the indoor unit or the remote controller can be
used to detect the room temperature.
When use this function, set “Indoor room temperature sensor switching
function (Function Number:42)” of “9. FUNCTION SETTING” to “Yes(01)”.
(1) Enable the room temperature sensor selection in FUNCTION SETTING,

which will be described later.

(2) Press the “

” button for 5 seconds or
more to select the temperature sensor of the indoor unit or the remote
controller.

B

Indoor unit

CAUTION

When select the “Remote controller setting”, if the

detected temperature value between the temperature
sensor of the indoor unit and the temperature sensor of
the remote controller varies signifi cantly, it is likely to
return to the control status of temperature sensor of the
indoor unit temporarily.

As the temperature sensor of remote controller detects the temperature
near the wall, when there is a certain difference between the room
temperature and the wall temperature, the sensor will not detect the room
temperature correctly sometimes. Especially when the outer side of the
wall on which the sensor is positioned is exposed to the open air, it is
recommended to use the temperature sensor of the indoor unit to detect
the room temperature when the indoor and outdoor temperature difference
is signifi cant.

The temperature sensor of the remote controller is not only used when
there is a problem in the detection of the temperature sensor of the indoor
unit.

NOTES

If the function to change the temperature sensor is used as shown in
example A (other than example B), be sure to lock the detection location.
If the function is locked, the lock display

will fl ash when the

“

” button is pressed.

9. FUNCTION SETTING

This procedure changes the function settings used to control the indoor unit
according to the installation conditions. Incorrect settings can cause the in­door unit to malfunction. This procedure should be performed by authorized
installation or service personnel only.
Perform the “FUNCTION SETTING” according to the installation conditions
using the remote controller. (Refer to the indoor unit installation manual for
details on the function numbers and setting values.)

(1) Press the “

” button, “ ” button and
“ ” button simultaneously for more than 5 seconds to enter the
function setting mode.

SUMOTUWETH FR

SA

(2) Press the “ ” button to select the indoor unit number.

SET BACK

SUMOTUWETH FR

SA

Unit number of
INDOOR UNIT

(3) Press the “ ” button or “ ” buttons to select the function

number.

Function
number

SUMOTUWETH FR

SA

(4) Press the “

” button, “ ” button to select
the setting value. The display fl ashes as shown to the right during setting
value selection.

En-6

(5) Press the TIMER SET button to confi rm the setting.

Press the TIMER SET button for a few seconds until the setting value
stops fl ashing.
If the setting value display changes or if “- -” is displayed when the
fl ashing stops, the setting value has not been set correctly.
(An invalid setting value may have been selected for the indoor unit.)

Setting value

SUMOTUWETH FR

SA

(6) Repeat steps 2 to 5 to perform additional settings.

Press the “

” button, “ ” button and
“ ” simultaneously again for more than 5 seconds to cancel the
function setting mode. In addition, the function setting mode will be
automatically canceled after 1 minute if no operation is performed.

(7) After completing the FUNCTION SETTING, be sure to turn off the power

and turn it on again.

Function Details

Functions

Function

Number

Com-

pact
Cas-

sette

Slim
Duct

Com-

pact
Wall

Mounted

Wall

Mounted

Floor

1) Filter sign 11

●

●

*1 ●●●

2) Ceiling height 20 ●

––––

3) Outlet directions 22 ●

––––

4)

Embedding
the indoor unit
in a wall

23

––––

●

5) Static pressure

––

●

–––

6)

Cooler room
temperature
correction

30 ●●●●●

7)

Heater room
temperature
correction

31 ●●●●●

8) Auto restart 40 ●●●●●

9)

Indoor room
temperature
sensor switching
function

42 ●●●●●

10)

Remote control­ler signal code

44 ●●●●●

11)

External input
control

46 ●●●●●

12)

Room tem­perature control
switching

48 ●●●●●

*1: It is effective only to install IR Receiver unit.

1) Filter sign

The indoor unit has a sign to inform the user that it is time to clean the
fi lter. Select the time setting for the fi lter sign display interval in the table
below according to the amount of dust or debris in the room. If you do
not wish the fi lter sign to be displayed, select the setting value for “No
indication”.

(♦... Factory setting)

Setting Description Function Number Setting Value

Standard

11

00
Long interval 01
Short interval 02

♦ No indication 03

The fi lter sign interval time is different according to Indoor unit type as
follows.

Setting Description

Compact
Cassette

Slim
Duct

Compact Wall

Mounted

Wall

Mounted

Floor

♦ Standard

2,500 hours

400 hours

Long interval

4,400 hours

1,000 hours

Short interval

1,250 hours

200 hours

2) Ceiling height

Select the setting values in the table below according to the height of the
ceiling.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ Standard (2.7m)

20

00

High ceiling (3.0m) 01

3) Outlet directions

Select the setting values in the table below for using a 3-way outlet.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ 4-way

22

00

3-way 01

4) Embedding the indoor unit in a wall

When embedding the indoor unit in a wall, restrict the movement of the
horizontal vane for the upper air outlet so that it only operates horizontally.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ Standard

23

00

(Setting forbidden) 01

In a wall 02

5) Static pressure

Select appropriate static pressure according to the installation conditions.
Please refer to the installation manual of each indoor unit for details.

6) Cooler 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

30

00

Slightly Lower control 01

Lower control 02

Warmer control 03

En-7

7) Heater room temperature correction

Depending on the installed environment, the room temperature sensor
may require a correction.
The settings may be changed as shown in the table below.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ Standard

31

00

Lower control 01

Slightly warmer control 02

Warmer control 03

8) Auto restart

Enable or disable automatic system restart after a power outage.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ Ye s

40

00

No 01

* 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.

9)

Indoor room temperature sensor switching function

(Only for Wired remote controller)
The following settings are needed when use the control by Wired remote
controller temperature sensor.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ No

42

00

Yes 01

* If setting value is “00” :

Room temperature is controlled by the indoor unit temperature sensor.

* If setting value is “01” :

Room temperature is controlled by either indoor unit temperature sensor
or remote controller unit sensor.

10) Remote controller signal code

Change the indoor unit Signal Code, depending on the remote controllers.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ A

44

00
B01
C02
D03

11) External input control

“Operation/Stop” mode or “Forced stop” mode can be elected.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦ Operation/Stop mode

46

00

(Setting forbidden) 01

Forced stop mode 02

12) Room temperature control switching

(Only for Wired remote controller)
This setting is used to set the room temperature control method when the
wired remote controller is selected by the Indoor room temperature sensor
switching function.

(♦... Factory setting)

Setting Description Function Number Setting Value

♦

Control by the sensors of
both the indoor unit and the
wired remote controller.

48

00

Control only by the sensor of
the wired remote controller

01

13) Setting record

Record any changes to the settings in the following table.

Setting Description Setting Value

Filter sign

Ceiling height

Outlet directions
Embedding the indoor unit

in a wall
Static pressure
Cooler room temperature

correction
Heater room temperature
correction

Auto restart
Indoor room temperature

sensor switching function
Remote controller signal code

External input control
Room temperature control

switching

After completing the FUNCTION SETTING, be sure to turn off the power
and turn it on again.

10. TEST OPERATION

(1) If the operation lamp is on, press the START/STOP button to turn it off.
(2) Press the “ ” button and

“ ”

button at the same time for

more than 2 seconds to start the test operation.

The operation lamp will light up and “ ” will be displayed on the set

temperature display.

* Perform the test operation for 60 minutes.

* Pressing the START/STOP button will stop the test operation.

Test operation display

En-8

11. ERROR CODES

If you use a wired remote controller, error codes will appear on the remote
controller display.
If you use a wireless remote controller, the lamp on the IR receiver unit will
output error codes by way of blinking patterns. See the lamp blinking patterns
and error codes in the table below. An error display is displayed only during
operation.

Error display

Wired

remote

controller

Error code

Description

OPERATION

lamp

(green)

TIMER

lamp

(orange)

ECONOMY

lamp

(green)

●

(1)

●

(1)

◊

Serial communication
error

●

(1)

●

(2)

◊

Wired remote
controller
communication error

●

(1)

●

(5)

◊

Check run unfi nished

●

(2)

●

(1)

◊

Unit number or
Refrigerant circuit
address setting error
[Simultaneous Multi]

●

(2)

●

(2)

◊

Indoor unit capacity
error

●

(2)

●

(3)

◊

Combination error

●

(2)

●

(4)

◊

Connection unit •
number error
(indoor slave unit)
[Simultaneous Multi]

Connection unit •
number error (indoor
unit or branch unit)
[Flexible Multi]

●

(2)

●

(7)

◊

Master unit, slave
unit set-up error
[Simultaneous Multi]

●

(3)

●

(2)

◊

Indoor unit PCB
model information
error

●

(3)

●

(5)

◊

Manual auto switch
error

●

(4)

●

(1)

◊

Inlet air temp. sensor
error

●

(4)

●

(2)

◊

Indoor unit Heat Ex.
Middle temp. sensor
error

●

(5)

●

(1)

◊

Indoor unit fan motor
error

●

(5)

●

(3)

◊

Drain pump error

●

(5)

●

(7)

◊

Damper error

●

(5)

●

(15)

◊

Indoor unit error

●

(6)

●

(2)

◊

Outdoor unit
main PCB model
information error or
communication error

●

(6)

●

(3)

◊

Inverter error

●

(6)

●

(4)

◊

Active fi lter error,
PFC circuit error

●

(6)

●

(5)

◊

Trip terminal L error

●

(6)

●

(10)

◊

Display PCB
microcomputers
communication error

●

(7)

●

(1)

◊

Discharge temp.
sensor error

●

(7)

●

(2)

◊

Compressor temp.
sensor error

●

(7)

●

(3)

◊

Outdoor unit Heat Ex.
liquid temp. sensor
error

●

(7)

●

(4)

◊

Outdoor temp. sensor
error

●

(7)

●

(5)

◊

Suction Gas temp.
sensor error

●

(7)

●

(6)

◊

2-way valve temp. •
sensor error

3-way valve temp. •
sensor error

●

(7)

●

(7)

◊

Heat sink temp.
sensor error

●

(8)

●

(2)

◊

Sub-cool Heat Ex. •
gas inlet temp.
sensor error

Sub-cool Heat Ex. •
gas outlet temp.
sensor error

●

(8)

●

(3)

◊

Liquid pipe temp.
sensor error

●

(8)

●

(4)

◊

Current sensor error

●

(8)

●

(6)

◊

Discharge pressure •
sensor error

Suction pressure •
sensor error

High pressure •
switch error

●

(9)

●

(4)

◊

Trip detection

●

(9)

●

(5)

◊

Compressor rotor
position detection
error (permanent
stop)

●

(9)

●

(7)

◊

Outdoor unit fan
motor error

●

(9)

●

(9)

◊

4-way valve error

●

(10)

●

(1)

◊

Discharge temp. error

●

(10)

●

(3)

◊

Compressor temp.
error

●

(10)

●

(4)

◊

High pressure error

●

(10)

●

(5)

◊

Low pressure error

●

(13)

●

(2)

◊

Branch boxes error
[Flexible Multi]

Display mode ● : 0.5s ON / 0.5s OFF

◊

: 0.1s ON / 0.1s OFF

( ) : Number of fl ashing

Wired Remote Controller Display

Error code