Johnson Controls YJHJXH018BARR-FX, YJHJYH018BARRA-X Service Manual

SERVICE MANUAL

Wall mounted Type

Order No.

YJHJXH018BARR-FX

FREE MATCH EK

YJHJYH018BARRA-X

indoor unit and remote controller

outdoor unit

Table of Contents

T

able of Contents

1. Introduction ……………………………………………………………………..1

2. List of Functions ……………………………………………………......………5

3. Specifications …………………………………………………………………...6

4. Printed Circuit Board ConnectorWiring Diagram ………………………...8

5. Functions and Control ……………….....…………..…………….…..…......13

5.1 Main functions and control specifications of indoor unit…….…….………13

5.2 Main functions and control specifications of outdoor unit …………….….21

5.3 Value of Thermistor………………..…............………..……………...……..27

6. System Configuration ……………………….…………………….….………39

6.1 System Configuration……………………..……………………...……...….39

6.2 Instruction …………….…………………………………………..………….39

7.Installations …… 50

…………………………….………….……………………....

65

9. Removal Procedure……………………………..…….…………………...….80

9.1 Removal of Indoor Unit…………………………….………………………..80

9.2 The removal procedure of outdoor……….…….……………………….....92

10.Wiring Diagrams ……………………………….……………………………105

10.1 Indoor Unit …………………………………..……………………………105

10.2 Outdoor Unit ………………………….………………………………..…106

11.Circuit Diagrams …………………………….………………………………107

12.Description of Coding rules of Unit Model ………………….…………..110

8. Error Codes and Descirption..……….……………………………………...

YJHJZH018BARRAFX－ＳＭ

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ntroduction

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mestic Air Conditioner

1. Introduction

1.1

Safety Cautions

Be

sure to read the following safety cautions before conducting repair work.

The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important

since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead

to serious accidents under some conditions if they are not followed. Therefore, be sure to observe all the safety

caution items described below.

About the pictograms

This symbol indicates an item for which caution must be exercised.

The pictogram shows the item to which attention must be paid.

This symbol indicates a prohibited action.

The prohibited item or action is shown inside or near the symbol.

This symbol indicates an action that must be taken, or an instruction.

The instruction is shown inside or near the symbol.

After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates

normally, and explain the cautions for operating the product to the customer.

1.1.

1 Caution in Repair

Warning

Be

sure to disconnect the power cable plug from the plug socket before disassembling the equipment for

a repair.

Working on the equipment that is connected to a power supply can cause an electrical shook.

If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not

touch any electrically charged sections of the equipment.

I

f the refrigerant gas discharges during the repair work, do not touch the discharging refrigerant gas.The

refrigerant gas can cause frostbite.

W

hen disconnecting the suction or discharge pipe of the compressor at the welded section, release the

refrigerant gas completely at a well-ventilated place first.

If there is a gas remaining inside the compressor, the refrigerant gas or refrigerating machine oil

discharges when the pipe is disconnected, and it can cause injury.

I

f the refrigerant gas leaks during the repair work, ventilate the area. The refrigerant gas can generate

toxic gases when it contacts flames.

The

step-up capacitor supplies high-voltage electricity to the electrical components of the outdoor unit.

Be sure to discharge the capacitor completely before conducting repair work.A charged capacitor can

cause an electrical shock.

D

o not start or stop the air conditioner operation by plugging or unplugging the power cable plug.

Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or

fire.

1

YJHJZH018BARRAFX－ＳＭ

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Warning

D

o not repair the electrical components with wet hands. Working on the equipment with wet hands can

cause an electrical shock.

D

o not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical

shock.

Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical

shocks.

Be

sure to turn off the power switch and unplug the power cable when cleaning the equipment. The

internal fan rotates at a high speed, and cause injury.

D

o not tilt the unit when removing it. The water inside the unit can spill and wet the furniture and floor.

B

e sure to check that the refrigerating cycle section has cooled down sufficiently before conducting repair

work. Working on the unit when the refrigerating cycle section is hot can cause burns.

U

se the welder in a well-ventilated place. Using the welder in an enclosed room can cause oxygen

deficiency.

1.1.2 Cautions Regarding Products after Repair

Wa

rning

Be

sure to use parts listed in the service parts list of the applicable model and appropriate tools to

conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can

cause an electrical shock, excessive heat generation or fire.

W

hen relocating the equipment, make sure that the new installation site has sufficient strength to

withstand the weight of the equipment.

If the installation site does not have sufficient strength and if the installation work is not conducted

securely, the equipment can fall and cause injury.

B

e sure to install the product correctly by using the provided standard installation frame.

Incorrect use of the installation frame and improper installation can cause the equipment to fall, resulting

in injury.

For

integral

units only

B

e sure to install the product securely in the installation frame mounted on a window frame.

If the unit is not securely mounted, it can fall and cause injury.

For

integral

units only

2

YJHJZH018BARRAFX－ＳＭ

In

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Warning

B

e sure to use an exclusive power circuit for the equipment, and follow the technical standards related to

the electrical equipment, the internal wiring regulations and the instruction manual for installation when

conducting electrical work.

Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire.

B

e sure to use the specified cable to connect between the indoor and outdoor units. Make the

connections securely and route the cable properly so that there is no force pulling the cable at the

connection terminals.

Improper connections can cause excessive heat generation or fire.

W

hen connecting the cable between the indoor and outdoor units, make sure that the terminal cover does

not lift off or dismount because of the cable.

If the cover is not mounted properly, the terminal connection section can cause an electrical shock,

excessive heat generation or fire.

D

o not damage or modify the power cable.

Damaged or modified power cable can cause an electrical shock or fire. Placing heavy items on the

power cable, and heating or pulling the power cable can damage the cable.

D

o not mix air or gas other than the specified refrigerant (R-410A / R22) in the refrigerant system.

If air enters the refrigerating system, an excessively high pressure results, causing equipment damage

and injury.

I

f the refrigerant gas leaks, be sure to locate the leak and repair it before charging the refrigerant. After

charging refrigerant, make sure that there is no refrigerant leak.

If the leak cannot be located and the repair work must be stopped, be sure to perform pump-down and

close the service valve, to prevent the refrigerant gas from leaking into the room. The refrigerant gas itself

is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters,

stoves and ranges.

W

hen replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent

children from swallowing it.

If a child swallows the coin battery, see a doctor imm ediately.

3

Cauti

on

I

nstallation of a leakage breaker is necessary in some cases depending on the conditions of the

installation site, to prevent electrical shocks.

Do not install the equipment in a place where there is a possibility of combustible gas leaks.

If a combustible gas leaks and remains around the unit, it can cause a fire.

Be

sure to install the packing and seal on the installation frame properly. If the packing and seal are not

installed properly, water can enter the room and wet the furniture and floor.

For

integral

units only

YJHJZH018BARRAFX－ＳＭ

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1.1.

3 Inspection after Repair

Warning

Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet

all the way.

If the plug has dust or loose connection, it can cause an electrical shock or fire.

I

f the power cable and lead wires have scratches or deteriorated, be sure to replace them.

Damaged cable and wires can cause an electrical shock, excessive heat generation or fire.

Wa

rning

D

o not use a joined power cable or extension cable, or share the same power outlet with other electrical

appliances, since it can cause an electrical shock, excessive heat generation or fire.

Cauti

on

C

heck to see if the parts and wires are mounted and connected properly, and if the connections at the

soldered or crimped terminals are secure. Improper installation and connections can cause excessive

heat generation, fire or an electrical shock.

I

f the installation platform or frame has corroded, replace it. Corroded installation platform or frame can

cause the unit to fall, resulting in injury.

C

heck the grounding, and repair it if the equipment is not properly grounded. Improper grounding can

cause an electrical shock.

B

e sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 M

ohm or higher.

Faulty insulation can cause an electrical shock.

Be

sure to check the drainage of the indoor unit after the repair.

Faulty drainage can cause the water to enter the room and wet the furniture and floor.

YJHJZH018BARRAFX－ＳＭ

Category

Healthy negative ion

Child lock

3D air flow

24Hour timer

Easy clean design

Intelligent air

Anti-mold filter

4 Fan setting

Auto mode

Power mode

Soft mode

Note:

Y: Holding Functions

N : No Functions

m

ake your room full of an abundance natural negative ions.

Functions

Quick cooling or heating

adjust the last fixed operation mode automatically.

Make dehumidifying in the room while keeping the constant temperature inside

lower noise operation condition

Slect the fan speed LO,MED,HI,AUTO

Constant temperature

dehumidification

Avoid the child's wrong operation on the remote controller

Sleep mode

Catches most small particles and remove unpleasant odors effectively.

With twin-blade technology ,the airflow can be adjusted not to blow directly

The 3D airflow is able to deliver the airflow horizontally and vertically.

Use the timer function to set on,or off,or from on to off,or from off to on

The panel is easy to wash and the airflow vents can be detached easily

The setting temprature and the indoor noise can be adjusted to a more comfortable
level when you set the "sleep mode"during night sleep

5

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

N

AS18GN3ERA

1U18EN2ERA

YJHJZH018BARRAFX－ＳＭ

16381

16381

163~941~2250

377~1412~2850

5.1

3.4

-

-

4.1

6.1

941

1412

4.8

4

4127

4.1

6.1

2.0

10

15

25

02

4127

12.7

AS18GN3ERA/1U18EN2ERA

7969

6.35

16.0

14.2

12.7

11.2

15.0

13.5

13.0

10.5

12.5

1016X304X360

938X187X265

55/52/48

55

3. Specifications

6

40

96

96

4.8

gnitaeHgnilooC

AS18GN3ERA

YJHJZH018BARRAFX－ＳＭ

0.5

R410a

33

1176.5

33

1176.5

35.5

33

780X245X640

930X340X714

54

40

54

1U18EN2ERA

1.2

900

4.1

6.1

15

7

FV50S

1412

941

SNB130FGYMC-L1

98

98

Specifications

5 m

Propeller

YJHJZH018BARRAFX－ＳＭ

Connector

Wiring Diagram

Domestic Air Conditioner

3ULQWHG&LUFXLW%RDUG&RQQHFWRU:LULQJ'LDJUDP

4.1˖Indoor

unit Connectors

Conn

ectors

PCB(1) (Control PCB) For AS18GN3ERA

1) CN26 Connector for fan motor

2) CN1 Connector for heat exchanger thermistor and Room temperature thermistor

3) CN11’ Connector for UP&DOWN STEP motor

4) CON2 Connector for power N wire

5) CON1 Connector for power L

6) CON13 Connector for power GRN

7) CN32 Connector for display board

8) CON7 Connector for communicate between the indoor board and the outdoor board

9) CN34 Connector for long-range control

Note: Other designations

PCB(1) (INdoor Control PCB)

1) SW1 Connector for Forced operation ON / OFF switch

2) SW2 1 Select remote code A or B,2 Select 25 or 35 ,3 Select room card able or disable

3) RV1 Varistor

4) FUSE1 Fuse 3.15A/250VAC

8

YJHJZH018BARRAFX－ＳＭ

Connector Wiring Diagram

Domestic Air Conditioner

PCB(1)

CN1

1’

CN34

CN26

CON1

CN1

CON7

CN32

CO

N13

CO

N2

9

YJHJZH018BARRAFX－ＳＭ

Connector Wiring Diagram

Domestic

Air Conditioner

4.2:

outdoor unit

Conn

ectors

PCB(1) (Control PCB) for 1U18EN2ERA

1) CN1,CN2 Connector for power N and L

2) CN3 Connector for ground

3) CN22 Connector for DC POWER 15Vand 5V to the module board

4) CN9,CN8 Connector for CN2,CN1 on the module board

5) CN21 Connector for fan motor

6) CN10 Connector for four way valve coil

7) CN17,CN18,CN19, CN20 Connector for thermistors

8)CN23 Connector for communicate between the control board and the module board

9) CN26,CN24 Connector to P and N of the module board

10) CN4 Connector for communicate between indoor and outdoor unit

11) CN16 Connector for electric expansion valves

PCB(2) (module PCB)

CN10 Connector for the DC power 5V and 15V form the control PCB

CN11 Connector for communicate between the control board and the module board

P( CN1), N(CN5) Connector for capacitance board

LI (CN7),LO(CN6) Connector for reactor
CN2ˈCN3ˈCN4 Connector for the U, V, W wire of the compressor

Note: Other Designations

PCB(1) (Control PCB)

1) FUSE 1, (25A,250VAC) FUSE 2(1A,250VAC)

2)LED 1 keep light representative normal ,if keep flash interval representative trouble Alarm

3)RV1,RV2,RV3 Varistor

10

YJHJZH018BARRAFX－ＳＭ

Connector

Wiring Diagram

Domestic Air Conditioner

PCB

(1)

11

CN1

CN2

CN3

CN2

2

CN8

CN9

CN2

1

CN1

0

CN1

7

CN1

8

CN1

9

CN2

0

CN2

3

CN2

4

CN2

6

CN4

CN1

6

CN5 CN6

YJHJZH018BARRAFX－ＳＭ

Connector

Wiring Diagram

Domestic

Air Conditioner

PCB

(2)

CN1

CN2

CN3

CN4

CN5

CN

6

CN7

CN11

CN10

12

YJHJZH018BARRAFX－ＳＭ

-SM

Funcitions and Control

Domestic

Air Conditioner

13

5.Funcitions and Control

5.1 Main functions and control specification of indoor unit

5.1.1 Automatic

operation

When the running mode is turned to automation after starting the system, the system will first

determine the running mode according to the current room temperature and then will run according to

the determined mode. Tr in the following selection conditions means room temperature, Ts means

setting temperature, Tp means temperature of indoor coil pipe
Tr23ć Choose Cooling Mode
Tr˘23ć Choose Heating Mode

After turning to the automation mode, the running mode can be switched between cooling mode,

fan mode and heating mode according to the change of the indoor ambient temperature. But the

automatic conversion between cooling mode and heating mode must be conducted after 15 minutes.

5.1.2 Cooling

operation mode

T

emperature control range: 16ć---30ć
Temperature difference: r1ć
* Control features: When Tr˄input airflow˅>Ts˄set temperature˅ć, the compressor will be opened,the

indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system. When
Tr˄input airflow˅ Ts˄set temperature˅ć , the compressor will be opened,the indoor fan will operate

at the set speed and the mode signal will be sent to the outdoor system. The system will keep the

original status if Tr= Ts.
Airflow speed control: (temperature difference 1ć)
Automatic: When Tr>=Ts+3ć, high speed.
When Ts+1ć=<Tr<Ts+3ć, medium speed
When Tr<Ts+1ć, low speed

When the sensor is off, low speed

When the airflow speed has no delay from the high to low switching, the speed should be delayed for

3 minutes (remain at high speed for 3 minutes.) before the next switch.

Manus: When the system is operating, you can set the high, medium or low speed manually. ( When

the sensor is on or off, the system will change the speed 2 seconds after receiving the signal.)

*Airgate location control: the location for the airgate can be set according to your needs.

*Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or

demoisture). When the compressor works continuously for 1/6 minutes (adaptable in EEPROM) and

the temperature of the indoor coils has been below zero centigrade for 10 seconds, the compressor

will be stopped and the malfunction will be recorded in the malfunction list. The indoor system will
continue to run. When the temperature of the indoor coil is raised to 7ć, the compressor will be

restarted again (the prerequirement of 3 minutes’ delay should be satisfied.)

* timing system on/off function.

* Dormant control function.

YJHJZH018BARRAFX

Domestic

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14

5.1.3 Demoisture

mode.

* temperature control range: 16---30ć
* temperature difference: r1ć

Control feature: send the demoisture signal to the outdoor system.
When Tr>Ts+2ć, the compressor will be turned on, the indoor fan will operate at the set speed.
When Tr is between the Ts and Ts+2ć, the outdoor system will operate at the high demoisture

frequency for 10 minutes and then at the low demoisture mode for six minutes. The indoor fan will

operate at low speed.

When Tr< Ts, the outsystem will be stopped, the indoor fan will be stopped for 3 minutes and then

turned to the low speed option.
All the frequency converses have a f1ć difference.

* Wind speed control: Automatic:
When Tr >= Ts+ 5ć, high speed.
When Ts+3ćdTr< Ts+5ć, medium speed.
When Ts+2ćdTr< Ts+3ć, low speed.
When Tr<Ts+2ć, light speed.

If the outdoor fan stopped, the indoor fan will be paused for 3 minutes.

If the outdoor fan stopped for more than 3 minutes and the outdoor system still operates, the system

will be changed into light speed mode.

When the airflow speed has no delay from the high to low switching, the speed should be delayed for

3 minutes (remain at high speed for 3 minutes.) before the next switch.
Manual: When the sensor is off or Tr< Ts+3ć, the manual operation can not be made. (obligatory

automatic operation.)

*Airgate location control: the location for the airgate can be set according to your needs.

*Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or

demoisture). When the compressor works continuously for 1/6 minutes (adaptable in EEPROM) and

the temperature of the indoor coils has been below zero centigrade for 10 seconds, the compressor

will be stopped and the malfunction will be recorded in the malfunction list. The indoor system will
continue to run. When the temperature of the indoor coil is raised to 7ć, the compressor will be

restarted again (the prerequirement of 3 minutes’ delay should be satisfied.)

* coil protection (synchronic overheating protection) are installed for the four directions latch

malfunctions when demoisturing.

* timing system on/off function.

* Dormant control functio

n.

5.1.4 Heating

operation mode.

*

temperature control range: 16---30ć

* temperature difference: r1ć

* control feature: the temperature compensation is automatically added and the system will send the

heating signals to the outdoor system.

If TrdTs, the outdoor compressor is turned on, the indoor fan will be at the cold air proof mode.

If Tr>Ts+, the outdoor system is turned off, the indoor fan will be at the heat residue sending mode.

Funcitions and Control Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

15

If

Tr<Ts+, the outdoor system will be turned on again, the indoor fan will be at the cold air proof mode.

*Indoor fan control

manual control: You can choose high, medium, low and automatic speed control.

Automatic: When Tr<Ts, high speed.

When Ts=<Tr=<Ts+2 , medium speed.

When Tr> Ts+2,low speed.

When the airflow speed has no delay from the high to low switching, the speed should be delayed for

3 minutes (remain at high speed for 3 minutes.) before the next switch.

*Airgate location control: the location for the airgate can be set according to your needs.

Coldair proof operation

1. The indoor operation within 4 minutes after the start up is as the following diagram, the air speed

can be raised only after the speed has reached a certain level.

2. 4 minutes after the start up of the indoor fan, the light airflow and the low airflow will be turned to the

set speed airflow.

3. In the cold air proof operation, the fan won’t stop after the start up.

4. During the cold air proof operation, the indoor system will continuously send ‘indoor high speed’

signals to the outdoor system.

* Residue heat sending. The indoor fan will send the residue heat at a low speed for 12 seconds.

If other conditions are satisified, when the compressor stops, the indoor system will operate at a light

speed. The indoor fan will stop when the coil temperature is below the ‘heat start temp 4’.

* Defrosting. When the system receives the defrosting signal from outdoors, the indoor fan will stop

and the indoor temperature display won’t change. At the time, any indoor coil malfunctions will be

neglected. When the outdoor defrosting finishes, the coil malfunction will still be neglected until the

compressor has been started up for 30 seconds. The indoor temperature display will not change and

the system operates at the cold air proof mode.

* Automatic heating temperature compensation: when the system enters the heating mode, the

temperature compensation (4) will be added. When the status is switched off, the compensation will

be erased.

5.1.5 strength

operation

a.

the system enters the mode after receiving the ‘strength signal’.

Send strength operation signal to the outdoor system.

The mode change finishes the strength operation.

Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strength

operation.

Heat

start temp 1

Heat

start temp

2

Heat

start temp

3

Heat

start temp

4

Set speed

Lo

w speed

L

ight speed

Fan/of

f

Fan/off

Keep

the hig

h

speed.

The fa

n

doesn’

t stop

Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

16

When

the system is at the automatic option with the strength/ mute function, if the system enters the

cooling mode, the cooling strength/ mute function will be offered; if the system enters the heating

mode, then the heating strength/ mute function will be offered; if the system enters the airflow mode,

there will be no strength/ mute function.

5.1.6 Mute

operation

the

system enters the mode after receiving the ‘mute signal’.

a. Mute heating: the airflow speed is slight, the system sends the mute signal to the outdoor system.

b. mute cooling: the airflow speed is slight, the system sends the mute signal to the outdoor system.

When the compressor operates, the airflow speed is mute speed. EEPROM is adaptable.

Mute operation can not work under the demoisturing and airflow-sending operation.

5.1.7 Air

refreshing

Af

ter receiving the signal from the remote control,(HV series: the background light of the ‘health’ logo

is green. HS series: the ‘health’ indicator will be lighted). If the fan operates, the negative ion

generator operates to realize the negative sending function.

If the indoor fan stops, the negative ion generator is turned off.

When the negative ion generator is turned off, if the air refreshing system is turned on, the negative

ion generator will be turned on when the fan operates.

5.1.8 Timing.

Y

ou can set 24 hours’ on/off timing accordingly. After the setting, the timing indicator will be lightened.

Also, the light will be turning off after the timing is finished. The followings are several timing methods.

1.system /on timing: The timing indicator will be lightened and the indoor system is under the waiting

mode. The light will be turned off when the timing is finished and the rest of the system will operate

under a normal condition. The timing starts since the last reception of the timing singal. You can have

the dormacy setting under the timing mode, the order of your settings will be operated according to

the timing settings.

2.system /off timing: When the system is turned on, the timing indicator is lightened, the rest of the

system will operated under a normal condition. When set time comes, the indicator light will be turned

off and the system will be turned off. If you have set the dormant functions, the order of your settings

will be operated according to the timing settings.

3 .system /on and off timing: The settings will be completed according to the orders.

5.1.9 Dormant

operation

The dormant timing is an eight hours unadaptable one. The timing signs are shown on the V series

board. (RC series show the dormant signal, the timing light is lighted on the 6 lights board).

2.1 Under the cooling/ demoisture operation, after the setting of the dormant operation, the set

temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade

Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

17

1

hour later. The system will keep this status for 6 hours and then close.

2.2 Under the heating mode, after the setting of the dormant operation, the et temperature will fall 2

centigrades after 1 hour’s operation and will fall 2 centigrades 1 hours later. 3 hours after the

preceding operations, the set temperature will be raised for 1 centigrade and the system will keep this

status for 3 hours and then close down.

2.3 During the dormant time, except the change of the system mode or a new press on the dormant

setting keys, the timing of the 8 hours dormancy will take the first timing as the start time, any presses

on other keys will not affect the original timing.

2.4 Indoor fan control under the dormant operation.

If the indoor fan is at the high speed before the dormant operation setting, the speed will be turned to

medium after the setting. If the fan is at the medium speed before the dormant setting, the speed will

be turned to low after the setting. If the fan is at the low speed before the dormant setting, the speed

will not change.

5.1.10 Urgent

on/off input

Press

the urgency button the buzzer will ring. The system will enter the automatic mode if you don’t

press the button for more than 5 seconds.

Under the system off mode, if you press the urgency key for 5 to 10 seconds, the system will start the

test operation.

Under the system off mode, If you press the urgency key for 10 to 15 seconds, the display screen will

show the resume of the last malfunction.

If the system is under operation, the press on the urgency key will stop it.

Under the system off mode, the display screen will show automatic running sign.

Under the system off mode, the system will not receive the remote control signal if the press on the

urgency key doesn’t last for 15 seconds or if the key is loosened.

Urgency operation: If you press the urgency key for less than 5 seconds, the buzzer will ring when you

press the on/off key. The system will enter the urgency operation when the urgency key is loosened.

The urgency operation is fully automatic.

Test operation.

The inlet temperature sensor doesn’t work, the indoor fan and the indoor air direction board motor

works synchronically. High speed airflow, cooling, outdoor system on, etc, will send the ambient

temperature 30 centigrade and coil temperature 16 centigrade information to the outdoor system.

Test operation

The defrost protection of the evaporator doesn’t work.

The temperature control doesn’t work.

The test operation will be finished in 30 minutes.

The test operation can be stopped by the relative commands from the remote control.

5.1.11

Low load protection control

In order to prevent the frosting of the indoor heat interaction device, the outdoor system will be

stopped if the indoor heat interaction temperature is below zero centigrade for 5 minutes, but the fan

will continue to operate. The outdoor system will be started again when the heat interaction

temperature is above 7 centigrade and the system has been stopped for 3 minutes. The malfunction

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will be stored

in the malfunction resume and will not be revealed.

5.1.12 High load protection control

The out

door system will be stopped if the coil temperature is above 65ć for 2 minutes. The indoor

fan will be controlled by the thermostat. The outdoor system can be restarted when the coil
temperature is below 42ć and the system has been stopped for 3 minutes. The malfunction will be

stored in the malfunction resume and will not be revealed.

5.1.13 abnormal operation of indoor system

When the outdoor system operates, if the indoor system operation differs from the outdoor system,

the abnormal operation malfunction will be reported. 10s after the report, the indoor system will be

closed.

Outdoor system mode Indoor system mode conflicts

cooling heating yes

cooling cooling no

cooling airflow no

heating heating no

heating airflow yes

heating cooling yes

5.1.14 Malfunction list resume.

Nothing is presented if there is no

code list.

The malfunction display will automatically finish in 10 seconds.

The remote control only receives the sigals for stop. According to the signals, the malfunction resume

presentation finishes.

The resume restores after the power supply restores.

5.1.15 abnormality confirmation approaches.

1. indoor temperatu

re sensor abnormality:

under the operation, the normal temperature ranges from 120 degree to -30 degree. When the

temperature goes beyond this range, the abnormality can be confirmed. If the temperature goes back

into the range, the system will automatically resume.

2 .indoor heat interaction sensor abnormality:

under the operation, the normal temperature ranges from 120 degree to -30 degree. When the

temperature goes beyond this range, the abnormality can be confirmed. If the temperature goes back

into the range, the system will automatically resume.

3 .indoor malfunction:

Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store

the code into E2 for the malfunction list resume. The indoor system will continue to operate according

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to the original

status, the malfunction code will not be revealed or processed.

4.transmission abnormality:

If the indoor system can’t receive the outdoor system for 8 minutes, the communication abnormality

can be confirmed and reported and the outdoor system will be stopped.

5.1.16 Single indoor system operation

* Enter

condition: First, set the high speed airflow and 30 centigrade set temperature, then press the

dormant keys for 6 times within 7 seconds, the system will feedback with 6 rings.

* After the system enters the separate indoor system operation mode, the indoor system will operate

according to the set mode and neglect the communication signals of the outdoor system. However, it

has to send signals to the outdoor system.

* Quitting condition: This mode can be quitted after receiving the quitting signal from the remote

control or urgency system. The indoor system thus can quit the single operation mode.

5.1.17

Power cut compensation.

* Entering condition: Press dormant butt

on 10 times within 7 second, the buzzer will ring 4 times and

the present system status will be stored into the EEPROM of the indoor system.

* After entering the power cut compensation mode, the processing of the indoor system should be as

the followings:

Remote control urgency singal: operate according to the remote control and the urgent conditions,

the present status will be stored into the EEPROM of the indoor system.

* Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring twice.

5.1.18 Fixed frequency operation.

1. Fixed cooling: a. unde

r G code condition: high speed cooling, set 16ć, press temperature ‘-‘ key

and the set key at the same time. The system will enter the fixed frequency operation after the buzzer

rings twice.

b. The proceeding programs are as the follows:

Entering the fixed frequency operation, you can set the fixed strength location 1 and send the coolng

signal to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, the

location of the airflow directin board can be switched to the maximal position.

c. Quitting condition: The fixed frequency cooling can be quitted after receiving the remote signal, and

the system will enter the remote setting status.

2. Fixed heating: a. under G code condition: high speed heating, set 30ć, press temperature ‘+‘ key

and the set key at the same time. The system will enter the fixed frequency operation after the buzzer

rings twice.

b. The proceeding programs are as the follows:

Entering the fixed frequency operation, you can set the fixed strength location 1 and send the heating

signal to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, the

location of the airflow directin board can be switched to the maximal position.

c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal, and

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the system

will enter the remote setting status.

5.1.19 Test program

First, connect the

test program terminal on the mainboard, then connect the system to the power

circuit. The test program will operate as follows.

HV series display: The buzzer rings for one time—the signal will be sent to outdoor system for 0.5

second— the violet is sent for 0.5-- the background light turns to white—the back ground light turns to

white—the background light turns to white—the background light is fully lighted for 0.5 second—LED

screen lights for 0.5 second— the step-in motor fully output for 0.5 second—then the motor doesn’t

output for 0.5 second—the motor fully output again for 0.5 second. The test program finishes.

5.1.20 Time cutting function:

con

nect the test program terminal on the mainboard after connecting the system to the power circuit.

The CPU of the main control will be 60 times faster.

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5.2 The control system of outdoor unit

5.2.1˖The operation frequency of out

door unit and its control

5.2.1.1˖The operation frequency control of compressor

The operation frequency scope of compressor˖

Mode

Minimun operation frequency Maximun operation frequency

Heatin

g 20Hz 110Hz

Refrigeration 20

Hz 90Hz

5.2.1.2˖The st

arting of compressor

When the compressor i

s started for the first time, it must be kept under the conditions of

58Hz,88Hz for one minute (the overheating protection of the outdoor unit air-blowing temperature,

immediately decrease the frequency when the compressor is overflowing and releasing the
pressure)ˈthen it can be operated towards the target frequency. When the machine runs normally,

there’s no such process. After starting the compressor for operation, the compressor should run

according to the calculated frequency, and every determined frequency for protection should be prior

to the calculated frequency.

5.2.1.3˖The speeds of increasing or decreasing the frequency of the compressor

The speed of increasing or decreasing the frequency rapidly 1 -----------1HZ/second

The speed of increasing or decreasing the frequency slowly 2 -----------1HZ/10seconds

5.2.1.4˖The calculation of the compressor

’s frequency

1˅ǃThe minimum/maximum frequency limitation
AˊWhile refrigerating: ˢˉ˩˝˴ˉ is the maximum operation frequency of the compressor;

ˢˉ˩INˉ is the minimum operation frequency of the compressor.

BˊWhile heating: ˢˉ˩˝˴ˉ is the maximum operation frequency of the compressor; ˢˉ

˩INˉis the minimum operation frequency of the compressor.

1˅ǃThe frequency limitation which is affected by the environment temperature.

Heating mode:

Serial No. Temperature scope Frequency limitation

1

Wh_c<-12 Max_hz8 110 HZ

2

Wh_c<-8 Max_hz7 110HZ

3

Wh_c<-2 Max_hz4 110 HZ

4

Wh_c<5 Max_hz5 100HZ

5

Wh_c<10 Max_hz1 90HZ

6

Wh_c<17 Max_hz2 80 HZ

7

Wh_c<20 Max_hz2 70 HZ

8

Wh_

c



20

Max_hz6 65

HZ

Remarks: the above are the maximum

frequency limitations of the complete appliance which are

affected by the environment, and they have nothing to do with the ability of the indoor unit.

Refrigeration/dehumidification mode::

Serial No. Temperature scope Frequency limitation

1

Wh_c<28 Max_hz1 45 HZ

2

Wh_c<32 Max_hz2 80 HZ

3

Wh_c<46 Max_hz3 90 HZ

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4

Wh_c<50 Max_hz4 80 HZ

5

Wh_

c



50

Max_hz5 60 HZ

Remarks: the above are not only

the maximum frequency limitations of the complete appliance which

are affected by the environment, but also the maximum ability limitation of the system. When the

starting ability is not the maximum, its maximum frequency limitation is calculated by the following

equations:

The frequency limitation which is affected by the temperature and under the condition of actual ability
˙the actural running system ability*the maximum frequency which is limited by the temperature and

under the condition of maximum ability/the maximum designing ability of the system

T=ě˄Ti*Pi˅/ěPi (Ti=|Tst_i-Tnh_i the indoor environment temperature| ;Pi˙i the ability of

the indoor unit)

Refrigeration/dehumidification:

Heating mode˖

K=ěKi/the number of running machines

The calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-*hPhK
When the healthy airflow has been set: F =F-ED-*hPhK˄airflow speed˅hK˄healthy airflow˅
When refrigerating, it is needed to satisfy ˢˉ˩INˉ< F<ˢˉ˩˝˴ˉ
When heating, it is needed to satisfy ˢˉ˩INˉr< F<ˢˉ˩˝˴ˉr

5.2.2˖The out

door fan control (exchange fan)

Whe

n the fan is changed among every airflow speed (including stop blowing), in order to avoid the

airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and

then it can be changed to another mode (when refrigerating, the time is changed to 15 seconds).

5.2.2.1˖

The outdoor fan control when refrigerating or dehumidifying

Af

ter the compressor is started for 5 seconds, the outdoor fan is started at the medium speed at first,

after 30 seconds,it begins to control the airflow speed according to the temperature conditions of the

outdoor environment.

T

<1

˙1 ˙2 ˙3



4

The pe

rcentage of the

rated frequency P

50% 70% 100% 120% 160%

T

<1

˙1 ˙2 ˙3



4

The pe

rcentage of the

rated frequency P

150% 170% 200% 220% 240%

The indoor set

airflow s

peed

Breeze Low Medium High Strong Quiet Healthy

airflow

The pe

rcentage

of the rated

frequency Ki

70ˁ

80% 90% 100% 180% 65% 65%

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5.2.2.2˖The outdoor fan control when heating

The temperature of the outdoor
air ˄Ta ˅

Airflow speed

Ta 22ć

Low

19ćTa

< 22 ć

Keeping the speed

16ćTa

< 22 ć

Medium

14ćTa <1 6 ć

Keeping the speed

Ta <1 4 ć

High

5.2.3˖The control of the out

door electronic expansion valve

Whe

n starting the compressor: the opening size of the valve must be guaranteed to have entered into

the standard opening size, and then the compressor can be started.

When refrigeration is in vain (the machine is shut down or is in the state of retrograde operation), the

opening size of the expansion valve of the indoor unit is 5 steps;

When heating is in vain, the opening size of the expansion valve of the indoor unit is 55 steps;

When the outdoor unit is shut down, the valve is opened completely for 2 minutes, and then begin

initialization.

The scope of refrigerationg valve 90-----480 steps

The scope of heating valve 60-----480 steps
The valves are adjusted according to the degree of superheat —SHaˈƸSHa.

5.2.4˖Four way control

For the det

ails of defrosting four-way valve control, see the defrosting process.

Four way working in other ways:

Under the mode of heating, open the four-way valve, when the compressor is not started or changed

to non-heating mode, make sure the compressor is stoped for 2 minutes, and then close the four-way

valve.

5.2.5 ˖Protection function

The temperature of the

out

door air ˄Ta˅

The temperature of the outdoor
coil˄Te ˅

Airflow speed

Ta 30ć

—— High

26ćTa

< 30 ć

—— Keeping the speed

24ćTa <2 6 ć

—— Medium

23ćTa <2 4 ć

—— Keeping the speed

10ćTa <2 3 ć

—— Low

5ćTa

< 10 ć

—— Low

Ta

< 5ć 15ćTe

Low

15ć>T

e

Stop

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5.2.5.1˖TTC

high temperature-preventing protection

Once

the machine is started, it can run TTC overheating protection of air-blowing, but air-blowing

sensor malfunction must alarm after 4 minutes during which the compressor is started (during the

course of self-detection, there’s no such limitation)

Sensor detection methods: 100 times (one cycle of procedure run is one time, and about 5ms,

detection method for each time: continuously sampling for 8 times, then order them and take the

mean value of the middle 2 values), take the mean value.
TTC˄ć˅

Abnormal stop

115
Decreasing the frequency rapidly˄1HZ/second˅

110

Decreasing the frequency slowly (1HZ/10seconds)

105

The frequency doesn’t change.

98
Increasing the frequency (1HZ/10second)

95
Increasing the frequency˄1HZ/1second˅
TTC>=115ć lasts for 20 seconds. Overheating protection of air-blowing, alarm malfunction to the

indoor, others don’t last.

5.2.5.2˖TC high temperature-preventing control of the indoor heating unit˖

Tpg_indoor

is the highest value of the effective indoor unit (start it and it is in accord with the running

state).

The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the
temperature is higher than 48ć, decrease the rotate speed of the compressor and do the high

temperature-preventing protection of the indoor heat exchanger; if the temperature of the indoor heat
exchanger is lower than 45ć, recover to the normal control.

TC

The compressor stops

Fgh_t1ˉ2

Fgh_t1 63ć

N Decreasing the frequency rapidly Fgh_t2 59ć

Fgh_t2ˉ2

P Decreasing the frequency slowly

Fgh_t3 56ć

Fgh_t3ˉ2

Q Prohibiting increasing the frequency

Fgh_t4 53ć

Fgh_t4—2 R Increasing slowly Fgh_t5 48ć

Fgh_t5—2

Normal

N˖Decreasing at the speed of 1HZ/1 s second
P˖Decreasing at the speed of 1Hz/10 s seconds
Q˖Continue to keep the last-time instruction cycle
R˖Increasing at the speed of 1Hz/10seconds

Remarks: the outdoor unit

5.2.5.3 The control of preventing the overcurrent of the compressor˖

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During

the starting process of the compressor, if the current of the compressor is greater than 17.5A

for 3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3

times in 20 minutes, stop the compressor and alarm, and confirm the malfunction. Then continue to

run it only after the the power is off.

During the starting process of the compressor, if the AC current is greater than 16.5A, the frequency

of the compressor decreases at the speed of 1HZ/second.

During

the starting process of the compressor, if the AC current is greater than 15.5A, the frequency

of the compressor decreases at the speed of 0.1HZ/second.

During

the starting process of the compressor, if the AC current is greater than14.5A, the frequency

of the compressor increases at the prohibited speed.

During

the starting process of the compressor, if the AC current is greater than 13.5A, the frequency

of the compressor increases at the speed of no faster than 0.1HZ/second.

5.2.5.4 The protection function of AC current:

During the starting process of the compressor, if the AC current is greater than 16.5A, the frequency

of the compressor decreases at the speed of 1HZ/second.

During the starting process of the compressor, if the AC current is greater than 15.5A, the frequency

of the compressor decreases at the speed of 0.1HZ/second.

During the starting process of the compressor, if the AC current is greater than 14.5A, the frequency

of the compressor increases at the prohibited speed.

During the starting process of the compressor, if the AC current is greater than 13.5A, the frequency

of the compressor increases at the speed of no faster than 0.1HZ/second.

Remarks: when the outdoor temperature is high, there’s compensation for AC current protection.

When the outdoor environment temperature is higher than 40 , AC current protection value

decreases by 25AD

When

the outdoor environment temperature is higher than 46

,AC

current protection value

decreases by 15AD

When

the outdoor environment temperature is higher than 50

,AC

current protection value

decreases by 35AD

5.2.5.5 Antifreezing

protection of the indoor heat exchanger

When

refrigerating/heating, prevent freezing.

Tpg_indoor is the minimum value of the effective indoor unit (start it and it is in accord with the running

state).

11

//ice_temp_3+5

9

i

ce_temp_3+3 Increasingslowly

8

//ice_temp_3+2

Keeping the frequency

ice_temp_3 7

6

ice_tem

p_2 5

Decreasingslowly

ice_temp_1 3

Decreasingrapidly ice_temp_1

0

Stop

When Tpg_indoor ice_temp_1 , the frequency of the compressor decreases at the speed of

1HZ/1second.

When Tpg_indoor ice_temp_2 , the frequency of the compressor decreases at the speed of

1HZ/10seconds.

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When

Tpg_indoor begins to rise again, and ice_temp_2İTpg_indoorİ ice_temp_3ć, the frequency

of thecompressor doesn’t change.
When ice_temp_3LJTpg_indoorLJice_temp_3+3ć, the frequency of the compressor increases at the

speed of 1HZ/10seconds.
For example, Tpg_indoorİ0ćˈlast for 2 minutes, and then the outdoor unit will stop, and report

underload malfunction, but don’t send malfunction report to the indoor.
The compressor stops for more than 3 minutes, Tpg_indoor> ice_temp_3+2ć, the compressor

recovers.

5.2.5.6 The

frequency limitation of modification rate

In

the field which is controlled by high frequency, if the modification rate is not high enough, the

control-driven chip will enter into weak magnetic control, this will help to relieve the problem of

modification rate. If during the course of weak magnetic control, the modification rate is still not high

enough, enter into the control of decreasing frequency until the alarm of modification rate is relieved.

5.2.5.7 T

emperature protection of the outdoor refrigerating coil

When

the defrosting temperature and the sensor’s temperature are higher than 68ć, the frequency of

the compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest
frequency. When the temperatures are lower than 68ć and higher than 61ć, keep the frequency of
the compressor. When the temperatures are lower than 61ć, relieve the defrosting temperature

protection.

5.2.5.8˖Malfunction display and malfunction handling

a)ǃFor

the complete appliance’s malfunctions˖Annex 2

If there’s malfunction with the outdoor unit, the light of the outdoor unit will flash and its frequency is

1HZ, the number of times is according to the table, when a round of flashing is finished, the light

shoud be off for 5 seconds.
b)ǃFor the units’ malfunctins˖Annex 1

If there’s malfunction with the units, this will not affect the run of the complete appliance, but this can

be displayed by the malfunction light, the light flashing frequency is 0.5HZ, the number of times is

according to the malfunction table of the indoor units. When a round of flashing is finished, the light
shoud be off for 10 seconds. Then report according to the order : unit Aėunit Bėunit Cėunit D, that

is, if there’s malfunction with several units, then just report the indoor unit with the highest priority level.

Among the unit malfunctions, the priority level of the communication malfunction is the highest, for

others, that appears first will have the priority.

Remarks: in 3 minutes when the compressor stops, the units’ malfunctions are not displayed; the

complete appliance’s malfunctions are prior to the units’ malfunctions.
Annex 1˖Malfunction codes of the whole unit

Remarks: under the mode of refrigeration, the malfunctions of each unit’s thin pipe temperature

sensor are not reported, under the mode of heating, the malfunctions of each unit’s thick pipe

temperature sensor are not reported.

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Room

sensor and Pipe Sensor

R25ć=10K¡f3%

B25ć/50ć=3700Kf3%

Temp.((ć))

Max.(Kȍ)

Normal(Kȍ) Min.(Kȍ)

Tolerance(ć)

-30

165.2170 147.9497 132.3678 -1.94 1.75

-29 155.5754 139.5600 125.0806 -1.93 1.74

-28

146.5609 131.7022 118.2434 -1.91 1.73

-27

138.1285 124.3392 111.8256 -1.89 1.71

-26

130.2371 117.4366 105.7989 -1.87 1.70

-25

122.8484 110.9627 100.1367 -1.85 1.69

-24

115.9272 104.8882 94.8149 -1.83 1.67

-23

109.4410 99.1858 89.8106 -1.81 1.66

-22

103.3598 93.8305 85.1031 -1.80 1.64

-21

97.6556 88.7989 80.6728 -1.78 1.63

-20

92.3028 84.0695 76.5017 -1.76 1.62

-19 87.2775 79.6222 72.5729 -1.74 1.60

-18

82.5577 75.4384 68.8710 -1.72 1.59

-17

78.1230 71.5010 65.3815 -1.70 1.57

-16

73.9543 67.7939 62.0907 -1.68 1.55

-15 70.0342 64.3023 58.9863 -1.66 1.54

-14

66.3463 61.0123 56.0565 -1.64 1.52

-13

62.8755 57.9110 53.2905 -1.62 1.51

-12

59.6076 54.9866 50.6781 -1.60 1.49

-11

56.5296 52.2278 48.2099 -1.58 1.47

-10

53.6294 49.6244 45.8771 -1.56 1.46

-9

50.8956 47.1666 43.6714 -1.54 1.44

-8 48.3178 44.8454 41.5851 -1.51 1.42

-7

45.8860 42.6525 39.6112 -1.49 1.40

Funcitions and Control

5.3

Value of Thermistor

5.3.1 int

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-6 43.5912

40.5800 37.7429 -1.47 1.39

-5 41.4249

38.6207 35.9739 -1.45 1.37

-4 39.3792

36.7676 34.2983 -1.43 1.35

-3 37.4465

35.0144 32.7108 -1.41 1.33

-2 35.6202

33.3552 31.2062 -1.38 1.31

-1 33.8936

31.7844 29.7796 -1.36 1.29

0 32.2608

30.2968 28.4267 -1.34 1.28

1 30.7162

28.8875 27.1431 -1.32 1.26

2 29.2545

27.5519 25.9250 -1.29 1.24

3 27.8708

26.2858 24.7686 -1.27 1.22

4 26.5605

25.0851 23.6704 -1.25 1.20

5 25.3193 23.9462 22.6273 -1.23 1.18

6 24.1432

22.8656 21.6361 -1.20 1.16

7 23.0284

21.8398 20.6939 -1.18 1.14

8 21.9714

20.8659 19.7982 -1.15 1.12

9 20.9688

19.9409 18.9463 -1.13 1.09

10 20.0176

19.0621 18.1358 -1.11 1.07

11 19.1149

18.2270 17.3646 -1.08 1.05

12 18.2580

17.4331 16.6305 -1.06 1.03

13 17.4442

16.6782 15.9315 -1.03 1.01

14 16.6711

15.9601 15.2657 -1.01 0.99

15 15.9366

15.2770 14.6315 -0.98 0.96

16 15.2385 14.6268 14.0271 -0.96 0.94

17 14.5748

14.0079 13.4510 -0.93 0.92

18 13.9436 13.4185 12.9017 -0.91 0.90

19 13.3431

12.8572 12.3778 -0.88 0.87

20 12.7718

12.3223 11.8780 -0.86 0.85

21 12.2280

11.8126 11.4011 -0.83 0.83

22 11.7102

11.3267 10.9459 -0.81 0.80

23 11.2172

10.8634 10.5114 -0.78 0.78

24 10.7475

10.4216 10.0964 -0.75 0.75

25 10.3000

10.0000 9.7000 -0.75 0.75

26 9.8975

9.5974 9.2980 -0.76 0.76

27 9.5129

9.2132 8.9148 -0.80 0.80

28 9.1454

8.8465 8.5496 -0.84 0.83

29 8.7942

8.4964 8.2013 -0.87 0.86

30 8.4583 8.1621 7.8691 -0.91 0.90

31 8.1371

7.8428 7.5522 -0.95 0.93

32 7.8299 7.5377 7.2498 -0.98 0.97

33 7.5359

7.2461 6.9611 -1.02 1.00

34 7.2546 6.9673 6.6854 -1.06 1.04

35 6.9852

6.7008 6.4222 -1.10 1.07

36 6.7273

6.4459 6.1707 -1.13 1.11

37 6.4803

6.2021 5.9304 -1.17 1.14

38 6.2437

5.9687 5.7007 -1.21 1.18

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39 6.0170

5.7454 5.4812 -1.25 1.22

40 5.7997

5.5316 5.2712 -1.29 1.25

41 5.5914

5.3269 5.0704 -1.33 1.29

42 5.3916

5.1308 4.8783 -1.37 1.33

43 5.2001

4.9430 4.6944 -1.41 1.36

44 5.0163

4.7630 4.5185 -1.45 1.40

45 4.8400

4.5905 4.3500 -1.49 1.44

46 4.6708

4.4252 4.1887 -1.53 1.47

47 4.5083

4.2666 4.0342 -1.57 1.51

48 4.3524

4.1145 3.8862 -1.61 1.55

49 4.2026

3.9686 3.7443 -1.65 1.59

50 4.0588 3.8287 3.6084 -1.70 1.62

51 3.9206

3.6943 3.4780 -1.74 1.66

52 3.7878

3.5654 3.3531 -1.78 1.70

53 3.6601

3.4416 3.2332 -1.82 1.74

54 3.5374

3.3227 3.1183 -1.87 1.78

55 3.4195

3.2085 3.0079 -1.91 1.82

56 3.3060

3.0989 2.9021 -1.95 1.85

57 3.1969

2.9935 2.8005 -2.00 1.89

58 3.0919

2.8922 2.7029 -2.04 1.93

59 2.9909

2.7948 2.6092 -2.08 1.97

60 2.8936

2.7012 2.5193 -2.13 2.01

61 2.8000 2.6112 2.4328 -2.17 2.05

62 2.7099

2.5246 2.3498 -2.22 2.09

63 2.6232 2.4413 2.2700 -2.26 2.13

64 2.5396

2.3611 2.1932 -2.31 2.17

65 2.4591

2.2840 2.1195 -2.36 2.21

66 2.3815

2.2098 2.0486 -2.40 2.25

67 2.3068

2.1383 1.9803 -2.45 2.29

68 2.2347

2.0695 1.9147 -2.49 2.34

69 2.1652

2.0032 1.8516 -2.54 2.38

70 2.0983

1.9393 1.7908 -2.59 2.42

71 2.0337

1.8778 1.7324 -2.63 2.46

72 1.9714

1.8186 1.6761 -2.68 2.50

73 1.9113

1.7614 1.6219 -2.73 2.54

74 1.8533

1.7064 1.5697 -2.78 2.58

75 1.7974 1.6533 1.5194 -2.83 2.63

76 1.7434

1.6021 1.4710 -2.88 2.67

77 1.6913 1.5528 1.4243 -2.92 2.71

78 1.6409

1.5051 1.3794 -2.97 2.75

79 1.5923 1.4592 1.3360 -3.02 2.80

80 1.5454

1.4149 1.2942 -3.07 2.84

81 1.5000

1.3721 1.2540 -3.12 2.88

82 1.4562

1.3308 1.2151 -3.17 2.93

83 1.4139

1.2910 1.1776 -3.22 2.97

Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

30

84 1.3730

1.2525 1.1415 -3.27 3.01

85 1.3335

1.2153 1.1066 -3.32 3.06

86 1.2953

1.1794 1.0730 -3.38 3.10

87 1.2583

1.1448 1.0405 -3.43 3.15

88 1.2226

1.1113 1.0092 -3.48 3.19

89 1.1880

1.0789 0.9789 -3.53 3.24

90 1.1546

1.0476 0.9497 -3.58 3.28

91 1.1223

1.0174 0.9215 -3.64 3.33

92 1.0910

0.9882 0.8942 -3.69 3.37

93 1.0607

0.9599 0.8679 -3.74 3.42

94 1.0314

0.9326 0.8424 -3.80 3.46

95 1.0030 0.9061 0.8179 -3.85 3.51

96 0.9756

0.8806 0.7941 -3.90 3.55

97 0.9490

0.8558 0.7711 -3.96 3.60

98 0.9232

0.8319 0.7489 -4.01 3.64

99 0.8983

0.8088 0.7275 -4.07 3.69

100 0.8741

0.7863 0.7067 -4.12 3.74

101 0.8507

0.7646 0.6867 -4.18 3.78

102 0.8281

0.7436 0.6672 -4.23 3.83

103 0.8061

0.7233 0.6484 -4.29 3.88

104 0.7848

0.7036 0.6303 -4.34 3.92

105 0.7641

0.6845 0.6127 -4.40 3.97

106 0.7441 0.6661 0.5957 -4.46 4.02

107 0.7247

0.6482 0.5792 -4.51 4.07

108 0.7059 0.6308 0.5632 -4.57 4.12

109 0.6877

0.6140 0.5478 -4.63 4.16

110 0.6700

0.5977 0.5328 -4.69 4.21

111 0.6528

0.5820 0.5183 -4.74 4.26

112 0.6361

0.5667 0.5043 -4.80 4.31

113 0.6200

0.5518 0.4907 -4.86 4.36

114 0.6043

0.5374 0.4775 -4.92 4.41

115 0.5891

0.5235 0.4648 -4.98 4.45

116 0.5743

0.5100 0.4524 -5.04 4.50

117 0.5600

0.4968 0.4404 -5.10 4.55

118 0.5460

0.4841 0.4288 -5.16 4.60

119 0.5325

0.4717 0.4175 -5.22 4.65

120 0.5194 0.4597 0.4066 -5.28 4.70

5.3.2 Outdoor Unit

Ambient Sensor

, Defrosting Sensor, Pipe sensor

R25ć=10K¡f3% B25ć/50ć=3700Kf3%

Temp.(ć)

Max.(Kȍ) Normal(Kȍ) Min.(Kȍ)

Tolerance(ć)

-30 165.2170

147.9497 132.3678 -1.94 1.75

-29 155.5754

139.5600 125.0806 -1.93 1.74

-28 146.5609

131.7022 118.2434 -1.91 1.73

-27 138.1285

124.3392 111.8256 -1.89 1.71

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

31

-26 130.2371

117.4366 105.7989 -1.87 1.70

-25 122.8484

110.9627 100.1367 -1.85 1.69

-24 115.9272

104.8882 94.8149 -1.83 1.67

-23 109.4410

99.1858 89.8106 -1.81 1.66

-22 103.3598

93.8305 85.1031 -1.80 1.64

-21 97.6556

88.7989 80.6728 -1.78 1.63

-20 92.3028

84.0695 76.5017 -1.76 1.62

-19 87.2775

79.6222 72.5729 -1.74 1.60

-18 82.5577

75.4384 68.8710 -1.72 1.59

-17 78.1230

71.5010 65.3815 -1.70 1.57

-16 73.9543

67.7939 62.0907 -1.68 1.55

-15 70.0342 64.3023 58.9863 -1.66 1.54

-14 66.3463

61.0123 56.0565 -1.64 1.52

-13 62.8755

57.9110 53.2905 -1.62 1.51

-12 59.6076

54.9866 50.6781 -1.60 1.49

-11 56.5296

52.2278 48.2099 -1.58 1.47

-10 53.6294

49.6244 45.8771 -1.56 1.46

-9 50.8956

47.1666 43.6714 -1.54 1.44

-8 48.3178

44.8454 41.5851 -1.51 1.42

-7 45.8860

42.6525 39.6112 -1.49 1.40

-6 43.5912

40.5800 37.7429 -1.47 1.39

-5 41.4249

38.6207 35.9739 -1.45 1.37

-4 39.3792 36.7676 34.2983 -1.43 1.35

-3 37.4465

35.0144 32.7108 -1.41 1.33

-2 35.6202 33.3552 31.2062 -1.38 1.31

-1 33.8936

31.7844 29.7796 -1.36 1.29

0 32.2608

30.2968 28.4267 -1.34 1.28

1 30.7162

28.8875 27.1431 -1.32 1.26

2 29.2545

27.5519 25.9250 -1.29 1.24

3 27.8708

26.2858 24.7686 -1.27 1.22

4 26.5605

25.0851 23.6704 -1.25 1.20

5 25.3193

23.9462 22.6273 -1.23 1.18

6 24.1432

22.8656 21.6361 -1.20 1.16

7 23.0284

21.8398 20.6939 -1.18 1.14

8 21.9714

20.8659 19.7982 -1.15 1.12

9 20.9688

19.9409 18.9463 -1.13 1.09

10 20.0176 19.0621 18.1358 -1.11 1.07

11 19.1149

18.2270 17.3646 -1.08 1.05

12 18.2580 17.4331 16.6305 -1.06 1.03

13 17.4442

16.6782 15.9315 -1.03 1.01

14 16.6711 15.9601 15.2657 -1.01 0.99

15 15.9366

15.2770 14.6315 -0.98 0.96

16 15.2385

14.6268 14.0271 -0.96 0.94

17 14.5748

14.0079 13.4510 -0.93 0.92

18 13.9436

13.4185 12.9017 -0.91 0.90

Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

32

19 13.3431

12.8572 12.3778 -0.88 0.87

20 12.7718

12.3223 11.8780 -0.86 0.85

21 12.2280

11.8126 11.4011 -0.83 0.83

22 11.7102

11.3267 10.9459 -0.81 0.80

23 11.2172

10.8634 10.5114 -0.78 0.78

24 10.7475

10.4216 10.0964 -0.75 0.75

25 10.3000

10.0000 9.7000 -0.75 0.75

26 9.8975

9.5974 9.2980 -0.76 0.76

27 9.5129

9.2132 8.9148 -0.80 0.80

28 9.1454

8.8465 8.5496 -0.84 0.83

29 8.7942

8.4964 8.2013 -0.87 0.86

30 8.4583 8.1621 7.8691 -0.91 0.90

31 8.1371

7.8428 7.5522 -0.95 0.93

32 7.8299

7.5377 7.2498 -0.98 0.97

33 7.5359

7.2461 6.9611 -1.02 1.00

34 7.2546

6.9673 6.6854 -1.06 1.04

35 6.9852

6.7008 6.4222 -1.10 1.07

36 6.7273

6.4459 6.1707 -1.13 1.11

37 6.4803

6.2021 5.9304 -1.17 1.14

38 6.2437

5.9687 5.7007 -1.21 1.18

39 6.0170

5.7454 5.4812 -1.25 1.22

40 5.7997

5.5316 5.2712 -1.29 1.25

41 5.5914 5.3269 5.0704 -1.33 1.29

42 5.3916

5.1308 4.8783 -1.37 1.33

43 5.2001 4.9430 4.6944 -1.41 1.36

44 5.0163

4.7630 4.5185 -1.45 1.40

45 4.8400

4.5905 4.3500 -1.49 1.44

46 4.6708

4.4252 4.1887 -1.53 1.47

47 4.5083

4.2666 4.0342 -1.57 1.51

48 4.3524

4.1145 3.8862 -1.61 1.55

49 4.2026

3.9686 3.7443 -1.65 1.59

50 4.0588

3.8287 3.6084 -1.70 1.62

51 3.9206

3.6943 3.4780 -1.74 1.66

52 3.7878

3.5654 3.3531 -1.78 1.70

53 3.6601

3.4416 3.2332 -1.82 1.74

54 3.5374

3.3227 3.1183 -1.87 1.78

55 3.4195 3.2085 3.0079 -1.91 1.82

56 3.3060

3.0989 2.9021 -1.95 1.85

57 3.1969 2.9935 2.8005 -2.00 1.89

58 3.0919

2.8922 2.7029 -2.04 1.93

59 2.9909 2.7948 2.6092 -2.08 1.97

60 2.8936

2.7012 2.5193 -2.13 2.01

61 2.8000

2.6112 2.4328 -2.17 2.05

62 2.7099

2.5246 2.3498 -2.22 2.09

63 2.6232

2.4413 2.2700 -2.26 2.13

Funcitions and Control

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

33

64 2.5396

2.3611 2.1932 -2.31 2.17

65 2.4591

2.2840 2.1195 -2.36 2.21

66 2.3815

2.2098 2.0486 -2.40 2.25

67 2.3068

2.1383 1.9803 -2.45 2.29

68 2.2347

2.0695 1.9147 -2.49 2.34

69 2.1652

2.0032 1.8516 -2.54 2.38

70 2.0983

1.9393 1.7908 -2.59 2.42

71 2.0337

1.8778 1.7324 -2.63 2.46

72 1.9714

1.8186 1.6761 -2.68 2.50

73 1.9113

1.7614 1.6219 -2.73 2.54

74 1.8533

1.7064 1.5697 -2.78 2.58

75 1.7974 1.6533 1.5194 -2.83 2.63

76 1.7434

1.6021 1.4710 -2.88 2.67

77 1.6913

1.5528 1.4243 -2.92 2.71

78 1.6409

1.5051 1.3794 -2.97 2.75

79 1.5923

1.4592 1.3360 -3.02 2.80

80 1.5454

1.4149 1.2942 -3.07 2.84

81 1.5000

1.3721 1.2540 -3.12 2.88

82 1.4562

1.3308 1.2151 -3.17 2.93

83 1.4139

1.2910 1.1776 -3.22 2.97

84 1.3730

1.2525 1.1415 -3.27 3.01

85 1.3335

1.2153 1.1066 -3.32 3.06

86 1.2953 1.1794 1.0730 -3.38 3.10

87 1.2583

1.1448 1.0405 -3.43 3.15

88 1.2226 1.1113 1.0092 -3.48 3.19

89 1.1880

1.0789 0.9789 -3.53 3.24

90 1.1546

1.0476 0.9497 -3.58 3.28

91 1.1223

1.0174 0.9215 -3.64 3.33

92 1.0910

0.9882 0.8942 -3.69 3.37

93 1.0607

0.9599 0.8679 -3.74 3.42

94 1.0314

0.9326 0.8424 -3.80 3.46

95 1.0030

0.9061 0.8179 -3.85 3.51

96 0.9756

0.8806 0.7941 -3.90 3.55

97 0.9490

0.8558 0.7711 -3.96 3.60

98 0.9232

0.8319 0.7489 -4.01 3.64

99 0.8983

0.8088 0.7275 -4.07 3.69

100 0.8741 0.7863 0.7067 -4.12 3.74

101 0.8507

0.7646 0.6867 -4.18 3.78

102 0.8281 0.7436 0.6672 -4.23 3.83

103 0.8061

0.7233 0.6484 -4.29 3.88

104 0.7848 0.7036 0.6303 -4.34 3.92

105 0.7641

0.6845 0.6127 -4.40 3.97

106 0.7441

0.6661 0.5957 -4.46 4.02

107 0.7247

0.6482 0.5792 -4.51 4.07

108 0.7059

0.6308 0.5632 -4.57 4.12

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

34

109 0.6877

0.6140 0.5478 -4.63 4.16

110 0.6700

0.5977 0.5328 -4.69 4.21

111 0.6528

0.5820 0.5183 -4.74 4.26

112 0.6361

0.5667 0.5043 -4.80 4.31

113 0.6200

0.5518 0.4907 -4.86 4.36

114 0.6043

0.5374 0.4775 -4.92 4.41

115 0.5891

0.5235 0.4648 -4.98 4.45

116 0.5743

0.5100 0.4524 -5.04 4.50

117 0.5600

0.4968 0.4404 -5.10 4.55

118 0.5460

0.4841 0.4288 -5.16 4.60

119 0.5325

0.4717 0.4175 -5.22 4.65

120 0.5194 0.4597 0.4066 -5.28 4.70

Discharging Sensor

R80ć=50K¡f3%
B25/80ć=44

50Kf3%

Temp.((ć))

Max.(Kȍ) Normal(Kȍ) Min.(Kȍ)

Tolerance(ć)

-30

14646.0505 12061.7438 9924.4999 -2.96 2.45

-29

13654.1707 11267.8730 9290.2526 -2.95 2.44

-28

12735.8378 10531.3695 8700.6388 -2.93 2.44

-27

11885.1336 9847.7240 8152.2338 -2.92 2.43

-26 11096.6531 9212.8101 7641.8972 -2.91 2.42

-25

10365.4565 8622.8491 7166.7474 -2.90 2.42

-24

9687.0270 8074.3787 6724.1389 -2.88 2.41

-23

9057.2314 7564.2244 6311.6413 -2.87 2.41

-22

8472.2852 7089.4741 5927.0206 -2.86 2.40

-21 7928.7217 6647.4547 5568.2222 -2.84 2.39

-20

7423.3626 6235.7109 5233.3554 -2.83 2.39

-19

6953.2930 5851.9864 4920.6791 -2.82 2.38

-18

6515.8375 5494.2064 4628.5894 -2.80 2.37

-17

6108.5393 5160.4621 4355.6078 -2.79 2.37

-16

5729.1413 4848.9963 4100.3708 -2.77 2.36

-15

5375.5683 4558.1906 3861.6201 -2.76 2.35

-14

5045.9114 4286.5535 3638.1938 -2.75 2.34

-13

4738.4141 4032.7098 3429.0191 -2.73 2.34

-12

4451.4586 3795.3910 3233.1039 -2.72 2.33

-11

4183.5548 3573.4260 3049.5312 -2.70 2.32

-10 3933.3289 3365.7336 2877.4527 -2.69 2.31

-9

3699.5139 3171.3148 2716.0828 -2.67 2.30

-8 3480.9407 2989.2460 2564.6945 -2.66 2.29

-7

3276.5302 2818.6731 2422.6139 -2.64 2.28

-6

3085.2854 2658.8058 2289.2164 -2.63 2.28

-5

2906.2851 2508.9126 2163.9230 -2.61 2.27

-4

2738.6777 2368.3158 2046.1961 -2.60 2.26

-3

2581.6752 2236.3876 1935.5371 -2.58 2.25

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

35

-2

2434.5487 2112.5459 1831.4826 -2.56 2.24

-1

2296.6230 1996.2509 1733.6024 -2.55 2.23

0

2167.2730 1887.0018 1641.4966 -2.53 2.22

1

2045.9191 1784.3336 1554.7931 -2.52 2.21

2

1932.0242 1687.8144 1473.1460 -2.50 2.20

3

1825.0899 1597.0431 1396.2333 -2.48 2.19

4

1724.6540 1511.6468 1323.7551 -2.47 2.17

5

1630.2870 1431.2787 1255.4324 -2.45 2.16

6

1541.5904 1355.6163 1191.0048 -2.43 2.15

7

1458.1938 1284.3593 1130.2298 -2.41 2.14

8

1379.7528 1217.2282 1072.8813 -2.40 2.13

9 1305.9472 1153.9626 1018.7481 -2.38 2.12

10

1236.4792 1094.3200 967.6334 -2.36 2.11

11

1171.0715 1038.0743 919.3533 -2.35 2.09

12

1109.4661 985.0146 873.7359 -2.33 2.08

13

1051.4226 934.9440 830.6210 -2.31 2.07

14

996.7169 887.6792 789.8583 -2.29 2.06

15

945.1404 843.0486 751.3077 -2.27 2.04

16

896.4981 800.8922 714.8380 -2.26 2.03

17

850.6086 761.0603 680.3265 -2.24 2.02

18

807.3024 723.4134 647.6580 -2.22 2.00

19

766.4212 687.8205 616.7252 -2.20 1.99

20 727.8172 654.1596 587.4271 -2.18 1.98

21

691.3524 622.3161 559.6694 -2.16 1.96

22 656.8979 592.1831 533.3634 -2.14 1.95

23

624.3328 563.6604 508.4261 -2.12 1.93

24

593.5446 536.6540 484.7796 -2.10 1.92

25

564.4275 511.0760 462.3510 -2.09 1.90

26

536.9865 486.9352 441.1516 -2.07 1.89

27

511.0105 464.0500 421.0258 -2.05 1.87

28

486.4151 442.3499 401.9146 -2.03 1.86

29

463.1208 421.7683 383.7626 -2.01 1.84

30

441.0535 402.2430 366.5175 -1.99 1.83

31

420.1431 383.7151 350.1301 -1.97 1.81

32

400.3242 366.1295 334.5542 -1.95 1.80

33

381.5350 349.4341 319.7460 -1.93 1.78

34 363.7176 333.5801 305.6645 -1.90 1.76

35

346.8176 318.5216 292.2709 -1.88 1.75

36 330.7839 304.2151 279.5286 -1.86 1.73

37

315.5682 290.6199 267.4031 -1.84 1.71

38 301.1254 277.6976 255.8620 -1.82 1.70

39

287.4128 265.4119 244.8745 -1.80 1.68

40

274.3905 253.7288 234.4118 -1.78 1.66

41

262.0206 242.6161 224.4465 -1.76 1.64

42

250.2676 232.0436 214.9529 -1.74 1.63

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

36

43

239.0983 221.9825 205.9065 -1.71 1.61

44

228.4809 212.4060 197.2844 -1.69 1.59

45

218.3860 203.2887 189.0648 -1.67 1.57

46

208.7855 194.6066 181.2273 -1.65 1.55

47

199.6531 186.3369 173.7524 -1.63 1.54

48

190.9639 178.4584 166.6217 -1.60 1.52

49

182.6945 170.9508 159.8181 -1.58 1.50

50

174.8228 163.7951 153.3249 -1.56 1.48

51

167.3280 156.9733 147.1268 -1.53 1.46

52

160.1904 150.4683 141.2090 -1.51 1.44

53

153.3914 144.2641 135.5577 -1.49 1.42

54 146.9136 138.3454 130.1598 -1.47 1.40

55

140.7403 132.6980 125.0027 -1.44 1.38

56

134.8559 127.3081 120.0746 -1.42 1.36

57

129.2457 122.1630 115.3645 -1.40 1.34

58

123.8956 117.2504 110.8618 -1.37 1.32

59

118.7926 112.5589 106.5564 -1.35 1.30

60

113.9241 108.0776 102.4388 -1.32 1.28

61

109.2784 103.7961 98.5000 -1.30 1.26

62

104.8443 99.7046 94.7315 -1.28 1.23

63

100.6112 95.7939 91.1253 -1.25 1.21

64

96.5692 92.0553 87.6735 -1.23 1.19

65 92.7088 88.4805 84.3690 -1.20 1.17

66

89.0211 85.0614 81.2048 -1.18 1.15

67 85.4976 81.7908 78.1744 -1.15 1.12

68

82.1303 78.6615 75.2715 -1.13 1.10

69

78.9116 75.6668 72.4902 -1.10 1.08

70

75.8343 72.8004 69.8249 -1.08 1.06

71

72.8916 70.0561 67.2703 -1.05 1.03

72

70.0770 67.4283 64.8213 -1.03 1.01

73

67.3844 64.9115 62.4731 -1.00 0.99

74

64.8080 62.5006 60.2211 -0.98 0.96

75

62.3423 60.1906 58.0609 -0.95 0.94

76

59.9821 57.9770 55.9885 -0.92 0.92

77

57.7223 55.8552 53.9998 -0.90 0.89

78

55.5583 53.8210 52.0912 -0.87 0.87

79 53.4856 51.8706 50.2591 -0.85 0.84

80

51.5000 50.0000 48.5000 -0.85 0.84

81 49.7063 48.2057 46.7083 -0.85 0.85

82

47.9835 46.4842 44.9911 -0.89 0.89

83 46.3286 44.8323 43.3452 -0.93 0.92

84

44.7385 43.2468 41.7672 -0.96 0.95

85

43.2105 41.7248 40.2540 -1.00 0.99

86

41.7386 40.2604 38.7996 -1.03 1.02

87

40.3241 38.8545 37.4048 -1.07 1.06

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

37

88

38.9643 37.5045 36.0668 -1.11 1.09

89

37.6569 36.2078 34.7831 -1.14 1.13

90

36.3996 34.9622 33.5513 -1.18 1.16

91

35.1903 33.7653 32.3689 -1.22 1.19

92

34.0269 32.6151 31.2338 -1.26 1.23

93

32.9075 31.5096 30.1438 -1.30 1.27

94

31.8302 30.4467 29.0970 -1.33 1.30

95

30.7933 29.4246 28.0915 -1.37 1.34

96

29.7950 28.4417 27.1254 -1.41 1.37

97

28.8337 27.4961 26.1970 -1.45 1.41

98

27.9078 26.5864 25.3048 -1.49 1.44

99 27.0160 25.7110 24.4470 -1.53 1.48

100

26.1569 24.8685 23.6222 -1.57 1.52

101

25.3290 24.0574 22.8291 -1.61 1.55

102

24.5311 23.2765 22.0662 -1.65 1.59

103

23.7620 22.5245 21.3323 -1.69 1.63

104

23.0205 21.8002 20.6261 -1.73 1.66

105

22.3055 21.1025 19.9465 -1.77 1.70

106

21.6159 20.4303 19.2924 -1.81 1.74

107

20.9508 19.7825 18.6626 -1.85 1.77

108

20.3091 19.1582 18.0563 -1.89 1.81

109

19.6899 18.5564 17.4723 -1.93 1.85

110 19.0924 17.9761 16.9098 -1.98 1.89

111

18.5157 17.4166 16.3680 -2.02 1.93

112 17.9590 16.8769 15.8458 -2.06 1.96

113

17.4214 16.3564 15.3427 -2.10 2.00

114

16.9023 15.8542 14.8577 -2.15 2.04

115

16.4010 15.3696 14.3902 -2.19 2.08

116

15.9167 14.9020 13.9394 -2.23 2.12

117

15.4489 14.4506 13.5047 -2.27 2.16

118

14.9968 14.0149 13.0855 -2.32 2.19

119

14.5599 13.5942 12.6811 -2.36 2.23

120

14.1376 13.1879 12.2909 -2.41 2.27

121

13.7294 12.7955 11.9144 -2.45 2.31

122

13.3347 12.4165 11.5510 -2.50 2.35

123

12.9531 12.0503 11.2003 -2.54 2.39

124 12.5840 11.6965 10.8617 -2.58 2.43

125

12.2270 11.3545 10.5348 -2.63 2.47

126 11.8817 11.0240 10.2191 -2.68 2.51

127

11.5475 10.7046 9.9142 -2.72 2.55

128 11.2242 10.3957 9.6197 -2.77 2.59

129

10.9112 10.0970 9.3352 -2.81 2.63

130

10.6084 9.8082 9.0602 -2.86 2.67

131

10.3151 9.5288 8.7945 -2.91 2.71

132

10.0312 9.2586 8.5378 -2.95 2.75

Funcitions and Control

YJHJZH018BARRAFX

Domestic

Air Conditioner

38

133

9.7563 8.9971 8.2895 -3.00 2.80

134

9.4901 8.7441 8.0495 -3.05 2.84

135

9.2322 8.4993 7.8175 -3.09 2.88

136

8.9824 8.2623 7.5931 -3.14 2.92

137

8.7404 8.0329 7.3760 -3.19 2.96

138

8.5059 7.8108 7.1660 -3.24 3.00

139

8.2787 7.5958 6.9629 -3.29 3.04

140

8.0584 7.3875 6.7664 -3.33 3.09

Funcitions and Control

YJHJZH018BARRAFX

39

YJHJZH018BARRAFX－ＳＭ

Domestic

Air Conditioner

0

System Configration

YJHJYH018BARRAFX-SM

1

2

3

5

6

4

7

4

POWER/SOFT button is not available for 07k、09k、12k.

Domestic

Air Conditioner

1

System Configration

YJHJYH018BARRAFX-SM

Operation

next time,just press ON/OFF button and unit will run in previous status.

Remote controller can memorize each operation status. When starting it

AUTO

COOL DRY FAN

2.Select operation mode

Press

FAN SPEED button. For each press, fan speed

follows:

Press MODE button. For each press, operation mode
changes as follows:
Remote controller:

Remote controller:

Press button

Every time the button is pressed, temp.setting
increase 1

o

C,if kept depressed, it will increase

rapidly

Every time the button is pressed, temp.setting

decrease

1

o

C,if kept depressed, it will decrease

rapidly

Select a desired temperature.

4.Fan speed selection

3.Select temp.setting

Air conditioner is running under displayed fan speed.
When

FAN is set to AUTO, the air conditioner
automatically adjusts the fan speed according to room
temperature.

LOW

MED

HI

AUTO

1.

Unit start

Press ON/OFF on the remote controller, unit star

ts.

TEMP+

TEMP-

TEMP+

TEMP-



B

ase Operation

Remote controller

Air Flow Direction Adjustment

V

ertical flap

Po

s.1

Pos.2

Pos.3

Pos.4

Pos.5

(Auto

swing)

1.Status displa

y of air flow

When restart after remote turning off, the remote

memorize the previous

Move the vertical blade by a knob on air

to adjust left and right direction

referring to Fig.

2.Left and right air flow adjustment

(manual)

Cautions:

When adjusting the flap by hand,turn off the unit.

When humidity is high,condensate water might occur

adjusted to left or

It is advisable not to keep horizontal flap at downward
position for a long time in COOLor DRY

otherwise, condensate water might occur.

conditioner

Emergency Operation:

temperature is below 16

o

C, do not use it in the

T

est operation:

Use this switch in the test operation when the room

normal operation.

your finger from the switch: the cooling

Continue to press the test operation

switch for more than 5 seconds . After

you hear the "Pi" sound twice,

release

T

est operation switch is the same as emergency switch.

operation starts with the air flow speed "Hi".

Emergency operation and test operation

Use this operation only when the remote controller
is de

fective or lost.
When the emergency operation switch is
pressed,the" Pi "sound is heard once

, which

the start of this operation.

In this operation, the system automatically selects

the

operation modes

,cooling or fan or heat,

according to the room temperature.

.

It is not possible to operate in dry mode.

Room

temperature

Operation

mode

Designated
temperature

Timer

mode

Air flow

ABOVE 23

O

C

BELOW 23

O

C

COOLING

HEAT

23

O

C

26

O

C

NO

NO

AUTOMATIC

AUTOMATIC

(C

ooling only uint˅

Room temperature

Operation

mode

Designated
temperature

Timer
mode

Air flow

BELOW 23

O

C

FAN

26

O

C

NO

AUTOMATIC

at air outlet if all vertical louvers are

right.

mode ,

controller will automatically

Note:

set swing position.

means

changes as

Pi

Pi

Pi

SPEED

Operation

Mode

AUTO

e

tomeR

rellortn o C

Note

COOL

DRY

FAN

In DR

Y mode, when room temperature becomes

lower than temp.setting+2

o

C,unit will r

un intermittently

at LOW speed regardless of FAN setting.

Under the mode of auto oper

ation, air conditioner will
automatically select Cool or Heat operation according
to room temperature.
air conditioner

automatically adjusts the fan speed

temperature.

When FAN is set to AUTO, the

according to room

In

FAN operation mode, the unit will not operate in
COOL or HEAT mode but only in FAN mode ,AUTO is
not available in FAN mode.And temp.setting is disabled.
In FAN mode,SLEEP operation is not available.

Display

Board

Operation

Sleep Operation

If the wind speed is high or middle before setting for the
sleep, set for lowing the wind speed after sleeping.

If it is low wind, no change.

5.Set the wind speed change when sleeping

Operation Mode

1. In COOL,DR

Y mode

SLEEP oper

ation starts SLEEP operation stops

SLEEP
oper

ation starts

SLEEP
operation stops

Appro

x.6hrs

1 hr

1 hr

1 hr

3 hrs

3 hrs

Rises 1OC

Rises 1

O

C

Rises 1OC

Temp.setting

T

emp.setting

Unit stop

Unit stop

In COOL, DRY mode

In HEAT mode

Decreases 2OC

Decreases 2

O

C

1 hr

2.

3.

In HEA

T mode

In AUTO mode

4. In FAN mode

It has no SLEEP function.

Note

When TIMER function is set, the sleeping function can’t be
set up .After the sleeping function is set u

p

,

TIMER function, the sleeping function will be cancelled; the
machine will be in the state of

timing-on.

PO

WER/QUIET Operation

1 hours after SLEEP

mode starts,temp.will become
higher than temp.setting.After another 1 hours,temp.rises
by 1 futher.The unit will run for further

6 hours then stops
Temp. is higher than temp.setting so that room temperature
won’t be too low for your sleep.

1 hours after SLEEP mode starts,temp will become 2
lower than temp.setting.After another 1 hours,temp
decrease by 2
rises

by 1 futher.The unit will run for further 3 hours then
stops.Temp.is lower than temp. setting so that room
temperature won’t be

too high for your sleep.

The unit operaters in corresponding sleep mode
adapted to the automatically selected operation

mode.

O

C

O

C futher.After more another 3 hours,temp.

O

C

1

O

C

O

C

if user resets

Press button to enter additional options, when
cycle display to , will flash.

And then press

enter to sleep function.

(1)

PO

WER Operation

(2)

QUIET Operation

N

ote ˖

When you need rapid heating or cooling, you can use this function.

You can use this function when silence is needed for rest or reading.

During POWER operation, in rapid HEAT or COOL mode

,

the room will show inhomogeneous temperature distribution.

Long period QUIET operation will cause effect of not too

cool or not too warm.

Press QUIET

button, the remote controller will show ,

and then achieve to the quiet function. Press again this

QUIET button , the quiet function will be cancelled.

Press button to enter additional options, when cycle
display to , will flash，and then press ,enter to

power function. When cancel the function, please enter

additional options again and to cancel power function.

Parts and Functions

42

Domestic Air

Conditioner

YJHJZH018BARRAFX－ＳＭ

Operation

1.After unit starts, select your desired operation mode.

2.Press TIMER button to change TIMER mode. Every
time the button is pressed, display changes as follows:
Remote controller:

BLANK

TIMER ON

TIMER OFF TIMER ON-OFF

Then select your desired TIMER mode (TIMER ON or
TIMER OFF or TIMER ON-OFF). " "or " "will flash.

3.Press /

button to set time.

It can be adjusted within 24 hours.

Hints:
After replacing batteries or a power failure happens, time
setting should be reset.

According to the Time setting sequence of TIMER ON or
TIMER OFF, either Start-Stop or Stop-Start can be achieved.

Timer On/Off On-Off Operation

CE

All the products are in conformity with the following
European provision:

- Low Voltage Directive 73/23/EEC

- Low Voltage Directive 2006/95/EC

-Electomagnetic CompatibilitY 89/336/EEC

-Electomagnetic CompatibilitY 2004/108/EC

ROHS

The products are fulfilled with the requirements in the
directive 2002/95/EEC of the European p

arliament and of
council on the Restriction of the use of Certain Hazardous
Substances in Electrical and Electronic Equipment (EU
RoHS Directive)

WEEE

DISPOSAL

REQUIREMENTS:

Your air conditioning product is marked with this
symbol.This means that electrical and electronic

products shall not be mixed with unsorted
household waste. Do not try to dismantle the
system yourself : the dismantling of the air

EUROPEAN

REGULATIONS

CONFORMITY FOR THE MODELS

1

1+2=

kg

R410A

2

kg

2=

1=

B

C

D

FE

kg

A

This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.

Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,

• 1 the factory refrigerant charge of the product

• 2 the additional refrigerant amount charged in the field and

• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging

IMPOR

TANT INFORMATION REGA-

RDING THE REFRIGERANT USED

In accordance with the directive

2002/96/CE

of the European

parliament, herewith we inform the consumer about the dis­posal requirements of the electrical and electronic products.

conditioning system,treatment of the refrigerant, of oil and of
other part must be done by a qualified installer in

accordance

with relevant local and national legislation. Air conditioners
must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed
of correctly, you will help to prevent potential negative cons­equences for the environment and humen health. Please
contact the installer or local authority for more information.
Battery must be removed from the remote controller and dis­posed of separately in accordance with relevant local and
nationl legislation.

Contains fluorinated greenhouse gases
covered by the Kyoto Protocol

Healthy airflow Operation

1.Press to starting

Setting the comf

ort work conditions.

2.The setting of healthy airflow function

Note:

1.After setting the healthy airflow function, the position

grill is fixed.

4.In cooling and dry, using the air conditioner for a long
time under the high air humidity, condensate water may
occur at the grille .

3.The cancel of the healthy airflow function

Notice: Do not direct the flap by hand. Otherwise, the
grille will run incorrectly. If the grille is not run correctly, stop

for a minute and then start, adjusting by remote
controller.

2.In heating, it is better to select the

3.In cooling, it is better to select the

mode.
mode.

TIMER OFF-ON

0.5h

0.5h

0.5h

0.5h

Press the button for each time, setting time in the first
12 hours increased by 0.5 hour every time, after 12
hours,increased by 1 hour every time.

Press the button for each time, settiing time in the first
12 hours decreased by 0.5 hour every time, after 12
hours,decreased by 1 hour every time.

After adjust the time,press button and confirm the
time ON or OFF button will not flash any more.

4.Confirm timer setting

5.Cancel timer setting
Press the timer button by times until the time display
eliminated.

Press button to enter additional options,Press this
button continuously

, the louvers location will cycle between
in the following three locations, to choose the swing location
what you needed,and then press button to confirm.

Press button to enter additional options,Press this
button continuously, the louvers location will cycle between
in the following three locations again,and then press
button to cancel.

Healthy
airflow
upwarder

Healthy
airflow
downwarder

Present
position

Parts and Functions

43

Domestic Air

Conditioner

YJHJZH018BARRAFX－ＳＭ

Maintenance

Setting of proper room
temperature

Close doors and windows
during operation

If the unit is not to be used
for a long time, turn off the
power supply main switch.

Use the timer eff

ectively

Use the lou

vers effectively

Do not block the air inlet
or outlet

Proper

temperature

During cooling operation

prevent the penetration
of

direct sunlight with

curtain or blind

OFF

Remote Controller

Indoor Body

1.Open the lnlet G

rille

2.Detach the standard air filter

3.Attach Air Purifying Filter

4.Attach the standard air filter

(Necessar

y installation)

5.Close the Inlet Gr

ille

Close the G

rille surely

Slide the knob slightly up

ward to

release the filter, then withdraw it.

Put air purifying filter appliances into the

right and left filter frames.

N

OTE:

The photocatalyst air purifying filter will be solarized in fixed

time. In normal family,

it will be solarized every 6 months.

Prop up the inlet grille by using a

small device named grille-support

ATTENTION:

Please keep the bacteria-killing medium air purifying filter in

avoid

long time directly sunshine

when you stop using it,or its ability of sterilization will

be

reduced.

The bacteria-killing medium air purifying filter will be used
for a long time,no need for replacement. But in the period
of using them ,you should remove the dust frequently by

which located in the right side of

the indoor unit.

using vacuum cleaner or flaping them lightly,otherwise ,

its performance will be affected.

the cool and dry conditions

For Smar

t Use of The Air Conditioner

Replacement of Air Purifying Filter

The white side of the photocatalyst air purifying filter
face outside,and the black side face the unit

The green
side of the bacteria-killing medium air purifying filter face
outside,and the white side face the unit.

Do not usewater,wipe the controller
with a dry cloth.Do not use glass

cleaner or chemical cloth.

wipe the air conditioner by using a
soft and dry cloth.For serious stains,

use a neutral detergent diluted with
water.Wring the water out of the
cloth before wiping,then wipe off the
detergent completely.

Air Filter cleaning

Open the inlet

grille by pulling it upward.

Remove the filter.

Clean the filter.

Attach the filter.

Close the inlet grille.

Push up the filter's center tab slightly until it is

from the stopper, and remove the filter do

wnw

ard.

Use a vacuum cleaner to remove dust, or wash the filter with
water.After washing, dry the filter completely in the shade.

Attach the filter correctly so that the "FRONT" indication

facing to the front.Make sure that the filter is

fixed behind the stopper.If the right

attached correctly, that

Do not use the

following for cleaning

Gasoline,benzine, thinner or cleanser

ay

damage the coating of the unit.

Hot water over 40

O

C(104OF) m

ay

discoloring or deformation.

Once every
two weeks

m

cause

released

is

completely
and left filters are not

may cause defects.

Detach old Air Pu

rifying Filter

Installation

44

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

the power supply cord
and so on.

2.

Do not install in the place where there is any

possibility of inflammable gas leakage around the unit.

3.Do not

get the unit exposed

to vapor or oil steam.

Cautions

Please call Sales/Service Shop for the Installation.

Do not attempt to install the air conditioner by yourself because improper works
may cause electric shock, fire, water leakage.

Connect the earth
cable.

ear

thing

W

ARNING

When abnormality such as burnt-small found,
immediately stop the operation button and
contact sales shop.

OFF

Use an exclusive
power source
with a circuit
breaker

ENFORCEMENT

Connect power supply cord
to the outlet completely

Use the proper voltage

Do not use power supply
cord in a bundle.

Take care not to damage

the power supply cord.

1.Do not use power supply cord extended
or connected in halfway

STRICT

ENFORCEMENT

STRICT

STRICT

ENFORCEMENT

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

Do not start or stop the

operation by disconnecting

Do not channel the air flow directly
at people, especially at infants or
the aged.

Do not try to repair or
reconstruct by yourself.

Do not use for the purpose of storage of
food, art work, precise equipment,
breeding, or cultivation.

CAUTION

Take fresh air occasionally especially
when gas appliance is running at the
same time.

PROHIBITION

STRICT

ENFORCEMENT

Do not operate the switch with
wet hand.

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

Do not install the unit near a fireplace
or other heating apparatus.

Check good condition of the
installation stand

Do not pour water onto the unit
for cleaning

PROHIBITION

Do not place animals or plants in
the direct path of the air flow

Do not place any objects on or
climb on the unit.

Do not place flower vase or water
containers on the top of the unit.

Do not insert objects into the air
inlet or outlet.

PROHIBITION

PROHIBITION

PROHIBITION

STRICT
ENFORCEMENT

Check proper
installation of the
drainage securely

W

ARNING

Installation

45

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Trouble shooting

Normal
Performance
inspection

Noise is heard

Phenomenon

Cause or check points

The system

i

mmediately.

Smells are
generated.

Mist or steam are

Multiple

check

Poor cooling

When unit is stopped, it won't restart

elapsed to protect the system.
When the electric plug is pulled out

and reinserted, the protection circuit

During unit operation or at stop,
a swishing or gurgling noise may

(This noise is generated by

refrigerant flowing in the system.)

During unit operation, a cracking
noise may be heard.This noise is

temperature changes.

Should there be a big noise from

filter may be too dirty.

This is because the system
circulates smells from the interior

During COOL or DRY operation,

This is due to the sudden cooling

Is power plug inserted?
Is there a power failure?
Is fuse blownout?

Is the air filter dirty?

Are there any obstacles before

Is temperature set correctly?
Are there some doors or

Is there any direct sunlight
through the window during the

Are there too much heat sources
or too many people in the room

In dry mode,

fan
speed can’t be
changed.

In DRY mode, when room temperature

setting+2

o

C,unit will run

regardless of FAN setting.

during cooling operation?

cooling operation?(Use curtain)

windows left open?

inlet and outlet?

Normally it should be cleaned
every 15 days.

intermittently at LOW speed

becomes

lower than temp.

indoor unit may blow out mist.

of indoor air.

air such as the smell of furniture,
paint, cigarettes.

air flow in unit operation, air

generated by the casing expanding

or shrinking because of

be heard.At first 2-3 minutes after

unit start, this noise is more noticeable.

will work for 3 minutes to protect the

air conditioner.

immediately until 3 minutes have

Cautions

3. If the fuse of indoor unit on PC board is
it with the type of

T

. 3.15A/ 250V

outdoor

broken,change it with the type of

T.25A/250V

Do not obstruct or c

over the ventilation

conditoner.Do not put fingers

inlet/outlet and

swing louver.

Do not allow children to play with the air

conditioner

case should children be

allowed to sit on the outdoor unit.

The refrigerating circuit is leak-proo f.

1.Applicable ambient temperature range:

Specifications

The ma

chine is adaptive in following

situation

The power plug and connecting cable

acquired the local

2. If the power supply cord is damaged, it

must be replaced

manufacturer

qualified

person.

4. The wiring method should be in line with

the local wiring

5. After installation, the power plug should

be easily reached.

6. The waste battery should be disposed

properly.

7. The appliance is not intended for use
persons

without supervision.

8. Young children should be supervised

with

the appliance.

9. Please employ the proper power plug,

cord.

11.In order to protect the units,please turn
30 seconds

later, cutting off the power.

10.

Cooling

Indoor

Maxim

um:D.B/W.B

Maximum:D.B/W.B

D.B

Maximum:D.B

D.B

Minimum:D.B/W.B

Maximum:D.B/W.B
Minimum:D.B/W.B

Outdoor

Indoor

Outdoor

Heating

32oC/23oC

24

o

C/18oC

o

C/-8oC

46

o

C/26oC

18

o

C

27

o

C

21

o

C/15oC

Outdoor

Maxim

um:D.B/W.B

Minimum:D.B

24

o

C/18oC

-15

o

C

(INVER

TER)

o

C

7

-

Minim

um:

Minimum:

g

rille of the air

or any other things into the

.In no

or its service agent or a similar

broken,please

. If the fuse of

standard.

by young children or

to ensure that th

ey

which fit into the

must have

off the A/C first,

Before asking for service, check the following
first.

blown out.

does not restart

b

y the

change

unit is

infirm

do not play

p

ower supply

attestation.

and at least

15

Installation

46

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Indoor Unit Installaion

D

riverƽ

Torque wrench

ƽ

(17mm,22mm,26mm)

Nipperƽ

Reamerƽ

Hacksawƽ

Pipe cutterƽ

Gasleakagedetectororƽ
soap-and-water solution

Hole core drillƽ

Flaring toolƽ

Spanner(17,19 and 26mm)ƽ

Knifeƽ
Measuring tapeƽ

NecessaryTools for Installation

Power Source

Be

fore inserting power

into receptacle, check the voltage without
fail.
The power

supply is the same as the

corresponding name plate.

Install an exclusive branch circuit of the power.

A receptacle shall be set up in a distance where the power cable
can

be

reached.

Donotextendthecablebycuttingit.

Selection of Installation Place

Pla

ce, robust not causing vibration, where the body can be

supported suf¿ciently.

ƽ

Plac

e, not affected by heat or steam generated in the vicinity,

where inlet and outlet of the

unit are not disturbed.

ƽ

Plac

e, possible to drain easily, where piping can be conne-

cted with the outdoor unit.

ƽ

P

lace,wherecoldaircanbespreadin a roomentirely.

ƽ

Plac

e, nearby a power receptacle, with enough space around.

ƽ

Plac

e where the distance of more than lm from televisions,

radios, wireless apparatuses

a

nd Àuorescent lamps can be

left.

ƽ

I

n the case of ¿xing the remote controller on a wall, place

where the indoor unit can

receive signals when the Àuore-

scent

ƽ

lamps

in

the room are lightened.

ƽ

ƽ

ƽ

The distance between

theindoorunitandthe

Àoorshouldbemore

than 2m.

T

hemodelsadoptHFCfreerefrigerantR410A

more

than

10cm

more than 15cm

more

than 10cm

A

rrangement of piping

directions

Rear left

Left

Rear
right

Right

Below

Attention must be paid to

the rising up of drain hose

R

emote controller (1)

R-

03 dry battery (2)

Mounting plate (1)

D

rain hose (1)

Ø4

X25 Screw

(4)

Plastic cap (4)

Accessory Parts

FOR 07K 09K 12K

FOR 18K

FOR 24K

Selection of Pipe

Drawing for the installation of indoor units

ƽ

Air purifying filter(Optional)

(1)

Please be subject to the actual product purchased,the above picture is just for your reference.

Installation

47

Domestic Air

Conditioner

YJHJZH018BARRAFX－ＳＭ

Indoor Unit Installation

Fix to side bar and lintel a mounting bar, Which is separately sold, and

then

fas

ten the plate to the

xed mounting bar.

Ref

er to the previousarticle, “ When the mounting plate is

position o

f wall hole.

Make a hole of 70 mm in diameter, slightly descendingto outside the wall
I

nstall piping hole cover and seal it off with putty after installation

1. Carry out, based on the neighboring p

illars or lintels, a

to be

xed ag

ainst the wall, then temporarily fasten the plate

with

one steel nail.

2. Make sure once more the proper level of the plate, by

hanging a thread

with a

weight from the central top of the plate, then fasten securely the

plate with

the

attachment steel nail.

3. Find the wall hole location A using a measuring tape

Wh

en the mounting plate is

xed side b

ar and lintel

Fitting of the Mounting Pla

te and

Positioning of the wall Hole

Lid for rig

ht

piping

Lid for under piping pipe

Fix with adhesive tape

L

id for left piping

Indoor/outdoor electric cableand drain hose must be bound with

efri

gerant

p

iping by protecting tape.

[ Other direction piping ]

Cut away,with a nipper, the lid for piping according to the piping

direction

and

then bend the pipe accord

ing to theposition of wall

hole. When bending, be

careful not to crash

pipes.

Connect beforehand the indoor/outdoor electric cable,and then

pull out the

connected to the heat insulation of connecting part

specially.

p

roper leveling

for

the plate

rst xed “,

f

or the

Makin

g a Hole on the Wall and Fitting the Piping Hole Cover

Drawing of pipe

Installat

ion of the Indoor Unit

[ Rear pi

ping ]

Draw pipes and the drain ho

se, then fasten them with the adhesive tape

[ Left·Left-r

ear piping ]

In case o

f left side piping, cut away, with a nipper, the lid for left

piping.

In case of left-re

ar piping, bend the pipes according to the piping

direction to

the mark of hole for left-rear pipingwhich is marked on

heat

insulation materials.

1. I

nsert the drain hose into the dent of heat insulationmaterials of

indoor

unit.

2. Insert the indoor/outdoor electric cable from backside of indoor
unit,

and pul

l it

out on the front side, then connect them.

3. Coat the

ari

ng seal face with refrigerant oil and connect pipes.

Cover the connection part with heat insulation materialsclosely,
and

make sure

x

ing with adhesive tape

Hang surely the unit body onto the upper

notches of the

mounting plate. Move the body

f

rom

side to side to verify its

securexing.

In order to

x the body onto t

he mounting

plate,hold up

the body aslant from the

u

nderside and

then put it down

perpendicularly.

R

emove terminal cover at rig

ht bottom corner of

indoor unit, then take

off wiri

ng cover by removing

its screws.

mounting plate

When you unload the indoor unit,please use your hand to arise

slightly and lift the unit aslant until it leaves the mounting plate.

agraffe

mounting plate

the body to leave agraffe,then lift the bottom of the body outward

Heat i

nsulation

material

Drain hose

Piping

Pipe supporting
plate

Indoor/outdoor electric cable

I

ndoor side

Outdoor side

Ø

70mm

Wall hole

Thickness of wall

(Section o

f wall hole)

Piping hole pipe

G

When t

he mounting plate is

rst xed

Fixing the indoor unit body

Unloading of indoor unit body

Con

necting the indoor/outdoor Electric Cable

Removing the wiring cover

A=145mm

30mm

B=

70mm

Ø

A=150mm

B= 70mm

35mm

A=145mm

B=

70mm

Ø

30mm

Installation

48

Domestic Air Conditioner

AS18GN3ERA

YJHJZH018BARRAFX－ＳＭ

1. Insert from outside the room cable into left side of the wall

hole,inwhichthepipehasalreadyexisted.

2.Pulloutthecableonthefrontside,andconnectthecable
making a loop.

When connecting the cable, con¿rm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, proper operation can not

becarriedoutandwillcausedefect.

I

nsertthecablefromtheback

ƽ

s

ide of the u nit, t hen p ull it o ut

on the front side.

Loosen the screws and insert

ƽ

th

e cable ends fully into

terminal block, then

tighten the screw s.

Pull the cable slightly to

ƽ

make sure the cables have

been properly inserted and

tightened.

After the cable connection,

ƽ

n

everfailtofastentheconnectedcablewiththe

wiring cover.

W

hen connecting the cable after installing the indoor unit

When

connecting the cable before installing the indoor unit

Note:

1

.Ifthesupplycordisdamaged,itmustbereplacedbythemanufacturerorits

service agent or a similar quali¿ed person. The type of connecting wire is
H05RN-F

or H07RN-F.

2.IfthefuseonPCboardisbrokenpleasechangeitwiththe

type of

3.Thewiringmethodshouldbeinlinewiththelocalwiringstandard.

4. After installation, the power plug should be easily reached.

5. A breaker should be incorporated into ¿ xedwiring.Thebreakershouldbe
all-pole

switch and the distance between its two contactsshouldbenotless

than 3mm.

T.3.15A/250VAC (Indoor).

To Outdoor unit

Model

Connecting wiring

4G0.75mm

2

T

he power source must be exclusively used for air

ƽ

c

onditioner.

In the case of installing an air conditioner in a moist place,

ƽ

please install

an ea

For installation in other places, use a circuit breaker as far

ƽ

as

possible.

Pipecuttingiscarriedoutwith a pipecutterandbursmust beremoved.

After inserting the Àare nut, Àaring work is carried out.



Power Source Installation



Cut

ting and Flaring Work of Piping

Flare

tool for R410A Conventional Àare tool

Clutch-type clutch-type(Rigid-type) Wing-nut type (Imperial-type)

A 0~ 0.5mm 1.0~1.5mm 1.5 ~2.0mm

rt

h leakage breaker.

Lean

Damage of Àare Partial Too outside

Co

rrect Incorrect



On Dra

inage

It

becomes

high midway.

The gap with the

ground is too small.

There is the bad
smell from a ditch

It waves.

Theendisimm­ersedinwater.

P

leaseinstallthedrainhosesoastobedownwardslopewithoutfail.

Please don’t do the drainage as shown below.

ƽ

ƽ

Please

pour water in the drain pan of the indoor unit, and

ƽ

is

carried out surely to outdoor.

In case that the attached drain hose is in a room, please

ƽ

apply

heat

insulation

to

Less

than

5cm

co

n¿rm that

drainage

it without fail.

Crac

k

Indoor unit

Chec

k Items for Test Run

G

asleakfrompipeconnecting?
Heat insulation of pipe connecting?
Are the connecting wirings of indoor and outdoor ¿rmly

Is the connecting wiring of indoor and outdoor ¿rmly ¿xed?
Is

drainage securely carried out?

Is

the earth line securely connected?

Is

the indoor unit securely ¿xed?

I

spowersourcevoltageabidedbythecode?

Is

there any noise?

I

s the lamp normally lighting?
Are cooling and heating (when in heat pump) performed normally?
I

s the operation of room temperature regulator normal?

Please

kindly explain to our customers how to

operate

throughtheinstructionmanual.

ins

erted to the terminal block?

Ƶ

Put

check mark

in

boxes

Flare

tooling die

1.Cut pipe

2.Remove burs

3.Insert the Àare nut

4.Flare pipe

ƽ

ƽ



On Dra

inage

Check for Installation and Test Run



Co

de

ind ic a tio n

Trouble description

Analyze and diagnose

E1

E2

E4

E7

E14

Indoor fan motor
malfunction

Heat-exchange
sensor failure

Indoor EE PRO M
error

Com munication
fault between
indoor and outdoor
units

Indoor fan motor
malfunction

Operation halt due to breaking
of w ire inside the fan motor;
Operation halt due to breaking
of the fan m oto r lea d wire s ;
De te c tion erro r d ue to fau lty
indoor unit P CB;

Indoor unit- outdoor unit

signal
transmission error due to wiring
error;
Faulty PCB;

Faulty E EPRO M data;
Faulty E EPRO M;
Faulty PCB;

Faulty connector connection;
Faulty thermistor;
Faulty P CB;

Installation

renoitidnoC riA citsemoD94

YJHJZH018BARRAFX－ＳＭ

Domestic air conditioner

50

Installation

Installation Manual of Room Air Conditioner

CE

All the products are in conformity with the following
European provision:

- Low Voltage Directive 73/23/EEC

- Low Voltage Directive 2006/95/EC

-Electomagnetic CompatibilitY 89/336/EEC

-Electomagnetic CompatibilitY 2004/108/EC

ROHS

The products are fulfilled with the requirements in the
directive 2002/95/EEC of the European p

arliament and of
council on the Restriction of the use of Certain Hazardous
Substances in Electrical and Electronic Equipment (EU
RoHS Directive)

WEEE

DISPOSAL REQUIREMENTS:

Your air conditioning product is marked with this
symbol.This means that electrical and electronic

products shall not be mixed with unsorted
household waste. Do not try to dismantle the
system yourself : the dismantling of the air

EUROPEAN

REGULATIONS

CONFORMITY FOR THE MODELS

1

1+2=

kg

R410A

2

kg

2=

1=

B

C

D

FE

kg

A

This product contains fluorinated greenhouse gases covered
by the Kyoto Protocol. Do not vent into the atmosphere.

Refrigerant type:R410A
GWP* value:1975

GWP=global warming potential

Please fill in with indelible ink,

• 1 the factory refrigerant charge of the product

• 2 the additional refrigerant amount charged in the field
and

• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the
product

charging port (e.g. onto the inside of the stop value

A contains fluorinated greenhouse gases covered by the
Kyoto

Protocol
B factory refrigerant charge of the product: see unit name
plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging

IMPORTANT INFORMATION REGA­RDING THE REFRIGERANT USED

In accordance with the directive

2002/96/CE

of the European
parliament, herewith we inform the consumer about the dis­posal requirements of the electrical and electronic products.

conditioning system,treatment of the refrigerant, of oil and of
other part must be done by a qualified installer in

accordance

with relevant local and national legislation. Air conditioners
must be treated at a specialized treatment facility for reuse,

recycling and recovery. By ensuring this product is disposed

of correctly, you will help to prevent potential negative cons­equences for the environment and humen health. Please
contact the installer or local authority for more information.
Battery must be removed from the remote controller and dis­posed of separately in accordance with relevant local and

nationl legislation.

Contains fluorinated greenhouse gases
covered by the Kyoto Protocol

cover).

7.Installation

YJHJZH018BARRAFX－ＳＭ

Please

be subject to the actual product purchased.

The above indoor and outdoor units’ picture is just for your reference.

F

A

C

E

D

O

ptional parts for piping

Non

-adhesive tape

Adhesive tape

Saddle(L.S)withscrews

Connecting electric cable

for indoor and outdoor

Drain hose

Heating insulating material

Piping hole cover

Fixing of outdoor unit

Fi

x the unit to concrete or block

ƽ

with

bolts (10mm) and nuts ¿rmly

and horizontally.

When ¿tting the unit to wall

ƽ

s

urface,rooforrooftop,¿x

asupportersurelywithnails

or wires in consideration of

earthquake and strong wind.

If vibration may affect the

ƽ

house

, ¿x the unit by attaching a

vibration-proof mat.

The

marks from to

in the ¿gure are the
parts numbers.
Thedistancebetween
theindoorunitandthe
Àoor should be more
than 2m.

ThemodelsadoptHFCfreerefrigerantR410A.

more than
10cm

more than 15cm

more than 10cm

more than 20cm

more than
20cm

more than 25cm

more than

60cm

A

G

ƽ

ƽ

A

F

C

E

D

G

B

A

rrangement of piping

directions

Rear left

Left

Rear
right

Right

Below

G

Attention must be paid to

the rising up of drain hose

For installation of the indoor units,refer to the installation manual which was provided with the units.
(The diagram shows a wall-mounted indoor unit.)



AIR OUTLET

AIR INLET

CONNECTING PIPING

AND ELECTRICAL WIRING

DRAIN HOSE

4

ƽ

Compressor(Inside of Unit)

Installation

Domestic Air Conditioner

51

Indoor/Outdoor Unit Installa

tion Drawings

YJHJZH018BARRAFX－ＳＭ

WARNING

CAUTION

Installation

Domestic air conditioner

52

Safety Precautions

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

53

Safety Precautions

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

54

Safety Precautions

Precautions for Handing Units for with R410A

YJHJZH018BARRAFX－ＳＭ

Installation

55

Domestic

Air Conditioner

Safety Precautions

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

56

Read Before Installation

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

57

Read Before Installation

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

58

Read Before Installation

YJHJZH018BARRAFX－ＳＭ

NO

Wind direction

Air outlet

Cushion rubber

4.Installation dimension(Unit:mm)

Installation

Domestic Air Conditioner

59

Installation Procedure

1U18EN2ERA

Model

1U09BS2ERA

1U12BS2ERA

W

D

H

L1

L2 L3

Power Wiring
T

erminal

Power Wiring
Distribution

YJHJZH018BARRAFX－ＳＭ

1U09BS2ERA
1U12BS2ERA

1U18EN2ERA

1.

Outdoor unit

Indoor unit

A

B

Outdoor unit

Indoor unit

A

B

A

B

Outdoor unit

Indoor unit

Oil trap

T

obend a pipe,givetheroundnessaslargeaspossiblenottocrushthepipe,

ƽ

a

ndthebendingradiusshouldbe30to40

mm or longer.

Connecting the pipe of gas side ¿rst makes working easier.

ƽ

TheconnectionpipeisspecializedforR410A.

ƽ

Ha

lf union

Flare nut

Torque wrench

CA

UTION

Be

careful that matters, such as wastes of sand

s,water,

,etc.shallnotenterthepipe.

ThestandardpipelengthisCm.IfitisoverDm,thefunctionoftheunitwillbeaffected.Ifthepipe

has

tobelengthened,therefrigerantshouldbecharged,

according to E g/m. But the charge of refrigerant

must

beconductedbyprofes

sional air conditioner engineer. Before adding additional refrigerant,

perform

air

purgingfromtherefrigerantpipesandindoorunitusing a vacuumpump,then

Spanner

F

orced fastening without careful centering may

damagethethreadsandcause a leakageofgas.

Pip

e Diameter(Ǜ)Fasteningtorque

Liquid side6.35mm(1/4") 18N.m

Liquid/Gas side9.52mm(3/8") 42 N.m

Gasside12.7mm(1/2") 55N.m

Gasside15.88mm(5/8") 60N.m

Ma

x.Elevation:

Ɣ

In

case the elevation A is more

Ɣ

th

an 5m, oil trap shoud be
installed every 5~7
Max. Length:

Ɣ

In

case the pipe length B is

Ɣ

more

thanDm, the refrigerant
should be charged, according
to E g/m.

C

onnection of pipes

charg

e

additional refrigerant.

Am

ax

Bmax

2.

Installation

Domestic air conditioner

60

1U18EN2ERA

Installation Procedure

Outdoor Unit

Amax

Bmax

C

D

E

1U09BS2ERA

1U12BS2ERA

10

15

5

7

20

10

15

5

7

20

10

15

5

7

20

YJHJZH018BARRAFX－ＳＭ

Installation

Domestic Air Conditioner

61

Installation Procedure

Air

Tightness Test

YJHJZH018BARRAFX－ＳＭ

(e.g.1U18EN2ERA)

Installation

Domestic air conditioner

62

YJHJZH018BARRAFX－ＳＭ

1U09BS2ERA
1U12BS2ERA

1U18EN2ERA

T 25A/250V.

3

2

1

)

(
N

)(

L

)(

C

3

2

1

)

(
N

)

(
L

)

(

C

To

Indoor unit

1U09BS2ERA
1U12BS2ERA

Model

Connecting wiring

Power cable

3G2.5mm

2

3G1.5mm

2

4G0.75mm

2

4G0.75mm

2

N

(

1

3

)

)C(

L(

2

)

{

L

N

POWER

Outdoor uni

t

To

Indoor unit

Outdoor uni

t

POWER

FOR 09K 12K

FOR 18K

Installation

Domestic air conditioner

63

1U18EN2ERA

YJHJZH018BARRAFX－ＳＭ

15

Outdoor Unit

2

9

15

8

12

10

5

13

19

1

18

4

11

6

25

25

25

11

0

Suction temperature sensor failure

When the The wiring of compressor is wrong or
the connection is poor

17

16

15

Lack of refrigerant

Check if there is leakage in the unit.

m

Installation

Domestic air conditioner

64

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

65

8.Service Diagnosis

8.1 Caution for Diagnosis

The operation lamp flashes when any of the following errors is detected.

1.When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,

disabling equipment operation.

2.When a signal transmission error occurs between the indoor and outdoor units.In either case, conduct the

diagnostic procedure described in the following pages.

8.2.Problem Symptoms and Measures

Sy

mptR

m

C

heck Item Details of Measure

Check

the power supply. Check to make sure that the rated voltage is supplied.

None

of the units

operates

Check the indoor PCB Check to make sure that the indoor PCB is broken

Operation

sometimes

stops.

Check the power supply. A power failure of 2 to 10 cycles can stop air conditioner

operation.

Check

for faulty operation

of the electronic

expansion valve.

Set the units to cooling operation, and compare the

temperatures of the liquid side connection pipes of the

connection section among rooms to check the opening and

closing operation of the electronic expansion valves of the

individual units.

Equipment
operates

but does
not cool, or does
not heat (only for
heat pump)

Diagnosis by service port

pressure and operating

current.

Check for insufficient gas.

Large

operating
noise and
vibrations

Check the installation
condition.

Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.) are
provided.

Domestic Air

Conditioner

YJHJZH018BARRAFX－ＳＭ

66

8.4.Error Codes and Description indoor display

Service Diagnosis

Domestic Air Conditioner

Code indication

Indoor

displaying

panel code

indication

Outdoor

(LED1 flash

times)

fault description

Reference

Page

Indoor and
Outdoor

E7 15

Communication fault between indoor and
outdoor units

Page .76

E1 -- Room temperature sensor failure Page .67
E2 -- Heat-exchange sensor failure Page .67

86. egaP rorre MORPEE roodnI -- 4E

Indoor Malfunction

E14 -- Indoor fan motor malfunction Page .69

86. egaP rorre MORPEE roodtuO 1 21F

F1

2

17. egaP MPI fo noitcetorp ehT

F22

3 Overcurrent protection of AC electricity

for the outdoor model

Page .72

F3 4

Communication fault between the IPM and
outdoor PCB

Page 73

F19 6 Power voltage is too high or low Page .74
F27 7 Compressor is lockrotor or stopt momentary -------

F4 8 Overheat protection for exhaust temperature Page .75
F8 9 Outdoor fan motor malfunction Page .72

F21 10 Frost-removing temperature sensor failure Page .74

F7 11 Suction temperature sensor failure Page .69
F6 12 Ambient temperature sensor failure Page .74

F25 13 Exhaust temperature sensor failure Page .74

F11 18 deviate from the normal

for the compressor Page .78

F28 19 Loop

of the station detect error Page .78

F2 24 Overcurrent of

the compressor Page .72

O

utdoor

Malfunction

F23 25

Overcurrent protection for single-phase of the
compressor

Page .72

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

67

8.

4.1

Thermistor

or Related Abnormality

Indoor Display E1: Room temperature sensor failure

E2: Heat-exchange sensor failure

outdoor display LED1 flash 10 times

Frost-removing

temperature sensor failure

LED1 flash 11 times

Suction

temperature sensor failure
LED1 flash 12 timesAmbient temperature sensor failure
LED1 flash 13 times

Ex

haust temperature sensor failure

Method of The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction
Detection

Malfunction when the thermistor input is more than 4.92V or less than 0.08V during compressor

.noitareponoisiceD

Conditions

Note:

The values vary slightly in some models

Supposed

Faulty

connector connection

Causes Faulty thermistor

Faulty

PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Thermistor resistance check method:
Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester.The
relationship between normal temperature and resistance is shown in the value of indoor thermistor.

Thermistor resistance check

Is

it normal?

Ye

s

NO

Ye

s

Is it normal?

NO

Check

the connector onnection.

Replace

the thermistor

Replace

the indoor unit PCB

Correct

the connection

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

68

8.4.2

EEPROM abnormal

Indoor

Display E4: indoor EEPROM error

Indoor display F12: Outdoor EEPROM error ;Outdoor LED1 flash 1 times

Method of The Data detected by the EEPROM are used to determine MCU
Malfunction
Detection
Malfunction when the data of EEPROM is error or the EEPROM is damaged
Decision
Conditions

Supposed Ŷ Faulty EEPROM data
Causes Ŷ Faulty EEPROM

Ŷ Faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.

Replace

the indoor or outdoor mainboard

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

69

8.4.3

Indoor fan motor malfunction





Indoor Display

E14

Method of

The

rotation speed detected by the Hall IC during fan motor operation is used to determine

Malfunction

abnormal

fan motor operation
Detection
Malfunction

when

the detected rotation feedback singal don’t receiced in 2 minutes
Decision
Conditio

ns

Supposed

Ŷ Operation

halt due to breaking of wire inside the fan motor .

Causes

Ŷ Fan motor overheat protection

Ŷ Operation halt due to breaking of the fan motor lead wires
Ŷ Detection error due to faulty indoor unit PCB

Troubleshooting

*

Caution

Be

sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Domestic Air Conditioner

Check

whether terminals

on indoor

p

cb

is well ?

Electrify

the machine again and turn it on in the cooling operation,

Measure voltage between the positions 1and 3 of Terminal CN5

on the indoor PCB

the

voltage is about 90-220vac

check

whether motor can run

when turn on the unit

the

indoor motor is damaged and need replace

Ye s

12

12

<HV

Measure

whether there is voltage pulse(0-5VDC)

between the positions middle wire and black wire

of Terminal CN2 on the indoor PCB

12

the indoor pcb is damaged and

need replace



Pull

out the terminals on the indoor

mainboard and reinsert them.

1R

<HV

Is

it ok?

<HV

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.4

Outdoor DC fan motor fault

Check

whether Terminal on the outdoor

mainboard is well inserted.

Is

it normal?

Ye

s

NO

Reins

ert the terminals

Electrify

the machine again and turn

itonintheCoolstatewiththeremote

controller. check whether motor can

run

Ye

s

Measure the voltage between 3 and 6 of

the terminal about 0-5v.

Is

it normal?

N0

the

motor of the outdoor unit is damaged

and needs replacing.

Measure the voltage between 1 and 3 of the terminal of

fan motor on the mainboard about DC310V,Measure

the voltage between 3 and 4 of the terminal about

DC15V. Measure the voltage between 5 and 3 of the

terminal about 1-6v.

NO

Is

it normal?

Th

e mainboard of the outdoor unit is

damaged and needs replacing

N0

Ye

s

Yes

renoitidnoCriAcitsemoD07

Out

door display LED1 flash 9 times

Method of DC fan motor is detected by checking the fan running condition and so on

Malfunction
Detection

Malfunction when the data of EEPROM is error or the EEPROM is damaged

Decision

Conditions
Supposed Ƶ DC fan motor protection dues to the DC fan motor faulty

Causes Ƶ DC fan motor protection dues to faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage

may be occurred.

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.5

IPM protection



Outdoor

display LED1 flash 2 times

Method of

IPM

protection is detected by checking the compressor running condition and so on
Malfunction
Detection

Malfunction

Ŷ The

system leads to IPM protection due to over current

Decision

Ŷ The

compressor faulty leads to IPM protection

Conditions

Ŷ circuit

component of IPM is broken and led to IPM protection

Supposed

Ŷ IPM protection dues to the compressor faulty

C

auses

Ŷ IPM

protection dues to faulty PCB of IPM module

Ŷ Compressor wiring disconnected

Troubleshooting

*C

aution

Be

sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Electrify the machine again and turn it on

with the remote controller,If malfunctions

are reported before or upon the

compressor being started up,

IPM

Module is damaged and

needs replacing.

1ǃThe

system may have been over or under charged with gas, which can be judged through the pressure of the

measuring system.

2ǃThe shaft of compressor is seized and the compressor needs replacing.

YE

S

NO

The

compressor is started normally, but

malfunctions are reported after it has run for

some time.

Malfunction

unsolved

71

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.6

Over-current of the compressor

Out

door Display LED1 flash 3 or 24 or 25 times

Method of The current of the compressor is too high
Malfunction
Detection

Malfunction when the IPM Module is damaged
Decision or the compressor is damaged
Conditions power supply. voltage is too low or too high

Supposed Ŷ Faulty IPM Module
Causes Ŷ Faulty compressor

Ŷ Faulty power supply

T

roubleshooting

*

Caution

Be

sure to turn off power switch before connect or disconnect connector, or

parts damage may be occurred.

Electrify the machine again and turn it on

with the remote controller,If malfunctions

are reported before or upon the

compressor being started up,

IPM

Module is damaged and

needs replacing.

Repair

the power supply

the

system may have been over or under

charged with gas, which can be judged through

the pressure of the measuring system.

YES

NO

Ye

s

NO

The

compressor is started normally,

but malfunctions are reported after it

has run for some time. Check the

power supply is too low or too high

NO

72

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.7 The communication fault between IPM and outdoor PCB



Out

door displayLED1 flash 4 times

Method of

Communication

is detected by checking the IPM module and the outdoor PCB
Malfunction
Detection

Malfunction Ŷ

The

outdoor PCB broken leads to communication fault

Decision

Ŷ

The

IPM module broken leads to communication fault

Conditions

Supposed Ŷ

The outdoor PCB is broken

C

auses Ŷ

The

IPM module is broken

Ŷ

Communication wiring disconnected

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.

1)

Check whether Terminal CN23 and CN24 on the outdoor mainboard

CN10 and CN11 on IPM module

2) Check whether the connected wire between IPM and outdoor

Are the

y good?

Electrif

y the machine again and turn it

on, Check whether the voltage between

1 and 2 of Terminal CN23 is about

DC5V, Check whether the voltage

between2 and 3 of Terminal CN23 is

about DC15V,

Replace the out

door mainboard with a new one

Replace

the outdoor IPM module

with a new one.

YE

S

NO

NO

YE

S

Malfunction

unsolved

1) Pull out and re

insert the terminals.

2) Replace connected wire

73 Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.8

Power Supply Over or under voltagve fault



out

door display: LED1 flash 6 times The power supply is over voltage

Method of

An

abnormal voltage rise or fall is detected by checking the specified voltage detection circuit.
Malfunction
Detection

Malfunction

An

voltage signal is fed from the voltage detection circuit to the microcomputer
Decision
Conditions

Supposed Ŷ

Supply

voltage not as specified

C

auses Ŷ

the

IPM module is broken

Ŷ

the

outdoor PCB is broken

Troubleshooting

*

Caution

Be

sure to turn off power switch before connect or disconnect connector, or else

parts damage may be occurred.

Electr

ify the machine again and turn it on with

the remote controller. Check whether the

compressor is started normall

y

Is

it ok?

Ye

s

May

be there is some disturbance

NO

No

~230 is ok?

Yes

Ye

s

This

question may be caused by the power.Repair

the power supply.

NO

Chan

ge the IPM module

Change

the IPM module

T

est the outdoor power supply

(+310VDC) with a multimeter.

check whether the power is

>150 V or <390V?

74

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.9

Overheat Protection For Exhaust Temperature



out

door display LED1 flash 8 times

Method of

The

exhaust temperature control is checked with the temperature being detected

Malfunction

by

the exhaust pipe thermistor
Detection
Malfunction

when

the compressor discharge temperature is above 110ć

Decision
Conditions
Supposed Ŷ

Electroni

c expansion valve defective

C

auses Ŷ

Faulty

thermistor

Ŷ

Faulty

PCB

Troubleshooting

*

Caution

Be

sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Electrify

the machine again and turn it on with the remote controller,

then measure the temperature at the exhaust temperature sensor of

the compressor on the outdoor unit

the

temperature exceeds

110 ć shortly after the

machine starts u

p

?

1)

The cryogen may have been leaked during

installation, or there may be leakage in the piping

system.

2) There may be other causes to make the exhaust

temperature too high.

Malfunctions

occur after running for some time even

though the measured temperature is below 110ć. Pull

out the exhaust sensor and measure its resistance at

standard temperatures according to the

resistance-temperature table

the

results deviate

much?

The

sensor is damaged. Replace the sensor

with a new one.

The

outdoor mainboard is damaged and needs be

re

p

laced

YE

S

NO

NO

YES

75

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

8.4.10 The co

mmunication fault between indoor and outdoor



Indo

or display

E7

outdoor display

LED1 flash 15 times

Method of

Communication

is detected by checking the indoor PCB and the outdoor PCB
Malfunction
Detection

Malfunction Ŷ

The

outdoor PCB broken leads to communication fault

Decision

Ŷ

The

indoor PCB broken leads to communication fault

Conditio

ns

Supposed Ŷ Communication wiring disconnected
Causes Ŷ

The

indoor PCB is broken

Ŷ

The

outdoor PCB is broken

Ŷ

The

Module PCB is broken

Troubleshooting

*C

aution

Be

sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

NO

˄A˅

Ye

s

NO

Yes

No

YES

Rest

art the a/c and it

becomes normally.

If

starting up normally, but

malfunction occurs again after a

while

Check

whether the linking cable

between the indoor and outdoor is well

connected or whether its core wires are

well insulated.

The out

door mainboard needs

dehumidification.

The out

door mainboard needs

dedust.

1.

Reconnect the linking cable;

2. Replace the linking cable with new

one.

76

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Service

Diagnosis

˄A˅

NO

YES

Yes

No

If the voltage is of a constant

value of 0V DCto5V DC

YES

measure

the voltage between Jumpers 3 and

4 of IC1 on the indoor mainboard with a

multimeter.

NO

The out

door mainboard is damaged;

Replace them with a new one.

measure

the AC voltage between positions 1

and 3 on the terminal of outdoor unit with a

multimeter.

If 230V

AC is available but 310DC not,

the power module is damaged, replace it

with a new one.

T

est the outdoor power supply (230VAC

and +310VDC) with a multimeter.

The out

door mainboard is damaged; replace

it with a new one.

The

indoor mainboard is damaged; replace

it with a new one.

If

the value varies between 0 and 80 VAC, the

outdoor mainboard is damaged, replace it

with a new one.

If

the value is constant at about 30V, the

indoor mainboard is damaged, replace it with

a new one.

If both 230V

AC and 310DC are

available,measure +12V(from7805)

is available.

77

Domestic

Air Conditioner

Check the indoor mainboard

YJHJZH018BARRAFX－ＳＭ

8.4.11Loss

of synchronism detection

Inverter

side current detection is abnoraml

Outdoor Display

LED1 flash 18 times

LED1 flash 19 times

Met

hod of The position of the compressor rotor can not detected normally
Malfunction
Detection

Malfunction when the wiring of compressor is wrong or the connection is poor;

Decision or the compressor is damaged

Conditions

Supposed Ŷ Faulty The wiring of compressor
Causes Ŷ Faulty compressor

Ƶ

Faulty

PCB

T

roubleshooting

*

Caution

Be

sure to turn off power switch before connect or disconnect connector, or parts

damage may be occurred.

Within

3 minutes after the machine is
supplied with power and turned on with
the remote controller,check whethe

r

the compressor can stard up

1.

The wiring of compressor is incorrect

or the connection is poor;

2. The compressor is damaged

At

frist, the compressor start up ,soon the

compressor stopped with the LED1 on the
outdoor PCB blinks˄1Hz˅19/18 times

IPM

Module is damaged and needs

replacing.

the

Malfunctions exist also, the
compressor is damaged replace a
new one

YE

S

NO

YE

S

Malfunction

unsolved

Ma

ybe there is some disturbance

Service Diagnosis

78

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

8.4.12

High work-intense protection



Outdoor display LED1 flash 21 times

Method of

High work-intense control is activated in the heating mode if the temperature

Malfunction

being

sensed by the heat exchanger thermistor exceeds the limit.

Detection

Malfunction

Activated

when the temperature being sensed by the heat exchanger

Decision

rises

above 65ć twices in 30 minutes.

Conditio

ns

Supposed Ŷ

Faulty

electronic expansion valve

C

auses Ŷ

Dirt

y heat exchanger

Ƶ

Faulty

heat-exchange sensor

Ƶ

Insuf

ficient gas

Troubleshooting

* Caution

Be sure to turn off power switch before connect or disconnect connector, or

else parts damage may be occurred.

Electrify

the machine again and turn it on with the

remote controller, check whether the wind
temperature is below 65ć

the malfunction is reported
after the machine has run
for some time?

1 ǃ Ch

eck room temperature and

pipe temperature sensor.
2ǃthe temperature monitoring circuit
of the indoor mainboard

the

indoor unit blows poorly
due to blocked filters or poor
condition of the fan?

1) Clean the filters

2) Reinstall the fan.

Use

some tools to measure the pressure of systemˈ

YE

S

NO

YES

NO

Service Diagnosis

79

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Remova

l Procedure

Removal of indoorunit

80

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

81

Domestic

Air Condiioner

YJHJZH018BARRAFX－ＳＭ

Please close the panels
before start the removal
procedure of front grille.

Slide the front panel from
one side to another to
release each axis.

Open the front panel
until it is on the
horizontal position,
and then release the
pivots on both sides of
the unit to remove the
front panel.

Remova

l Procedure

82

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

three

two

Remova

l Procedure

HOOKS

83

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

flap

flap

flap

flap

Removal

Procedure

84

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

85

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

86

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

87

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

88

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

89

Domestic Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

90

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

Removal

Procedure

91

Domestic

Air Conditioner

YJHJZH018BARRAFX－ＳＭ

92

Domestic air conditioner

Removal of procedure

9.2 The removal procedure of outdoor

9.2.1 Removal of Outdoor panel

stnioPerudecorPpetS

1. Features
1 Loosen the service

cover screw and

remove the service

cover.

Be careful not to

YJHJZH018BARRAFX－ＳＭ

93

Domestic air conditioner

Removal of procedure

stnioPerudecorPpetS

2. Remove the panels.

1

Loosen the 4 screws

and lift the top panel

2

Loosen the screws

of the panel.

3

Pull and remove

the front panel.

YJHJZH018BARRAFX－ＳＭ

94

Domestic air conditioner

Removal of procedure

9.2.2 Romoval of Electrcal Box

stnioPerudecorPpetS

screws, then lift

the electrical box















YJHJZH018BARRAFX－ＳＭ

95

Domestic air conditioner

Removal of procedure

9.2.3 Romoval of the Side panel

stnioPerudecorPpetS

1

screws and remove

the side panel.

YJHJZH018BARRAFX－ＳＭ

96

Domestic air conditioner

Removal of procedure

stnioPerudecorPpetS

2

Remove the

3 screws and remove

the side panel.

YJHJZH018BARRAFX－ＳＭ

97

Domestic air conditioner

Removal of procedure

stnioPerudecorPpetS

1

Loosen the

remove the fan

Put the lead wire

of motor when

the propeller fan)

9.2.4 Removal of fan and fan motor

YJHJZH018BARRAFX－ＳＭ

98

Domestic air conditioner

Removal of procedure

stnioPerudecorPpetS

2

screws and lift

the fan motor

.

YJHJZH018BARRAFX－ＳＭ