YORK EK-Series YJHMXH007BARR-FX, YJHMXH009BARR-FX, YJHMXH012BARR-FX, YJU2YH014BARRA-X split-system air conditioner Service manual

EK-Series
YJHMXH007BARR-FX
YJHMXH009BARR-FX
YJHMXH012BARR-FX
YJU2YH014BARRA-X
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death
Table of Contents
Contents
1.Introduction-------------------------------------------------------------------------------------------------------------------1
2.List of fuctions---------------------------------------------------------------------------------------------------------------6
3.Specifications ----------------------------------------------------------------------------------------------------------------7
4.Printed Circuit Board Connector Wiring Diagram-----------------------------------------------------------------9
5.Funcitions and Control---------------------------------------------------------------------------------------------------14
5.1 Main functions and control specification of indoor unit --------------------------------------------------------14
5.2 The control system of outdoor unit -----------------------------------------------------------------------------------22
5.3 Value of termistor ------------------------------------------------------------------------------------------------------22
6. Service Diagnosis -----------------------------------------------------------------------------------------------------------41
6.1 Caution for Diagnosis-------------------------------------------------------------------------------------------------------41
6.2 Problem Symptoms and Measures-------------------------------------------------------------------------------------41
6.3 Error Codes and Description indoor display--------------------------------------------------------------------------42
6.3.1 Thermistor or Related Abnormality-----------------------------------------------------------------------------------43
6.3.2 EEPROM abnormal------------------------------------------------------------------------------------------------------44
6.3.3Indoor AC fan motor malfunction----------------------------------------------------------------------------------------45
6.3.4 Outdoor DC fan motor fault---------------------------------------------------------------------------------------------46
6.3.5 IPM protection--------------------------------------------------------------------------------------------------------------47
6.3.6 Over-current of the compressor----------------------------------------------------------------------------------------48
6.3.7 The communication fault between IPM and outdoor PCB ------------------------------------------------------49
6.3.8 Power Supply Over or under voltage fault---------------------------------------------------------------------------50
6.3.9 Overheat Protection For Discharge Temperature------------------------------------------------------------------51
6.3.10 The communication fault between indoor and outdoor-----------------------------------------------------------52
6.3.11 Loss of synchronism detection----------------------------------------------------------------------------------------54
6.3.12 High work-intense protection------------------------------------------------------------------------------------------55
7.exponent--------------------------------------------------------------------------------------------------------------------------56
8. Installation manual of room Air conditioner------------------------------------------------------------------------------ 63
9.Removal Procedure----------------------------------------------------------------------------------------------------------81
10.Wiring Diagrams--------------------------------------------------------------------------------------------------------------102
Domestic Air Conditioner
Introduction
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.
If the refrigerant gas discharges during the repair work, do not touch the discharging refrigerant gas.The
refrigerant gas can cause frostbite.
When 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.
If 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.
Do 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
Domestic Air Conditioner
Introduction
Warning
Do not repair the electrical components with wet hands. Working on the equipment with wet hands can
cause an electrical shock.
Do 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.
Do not tilt the unit when removing it. The water inside the unit can spill and wet the furniture and floor.
Be 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.
Use 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
Warning
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.
When 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.
Be sure to install the product correctly by using the provided standard installation frame.
For
Incorrect use of the installation frame and improper installation can cause the equipment to fall, resulting
in injury.
integral
units only
Be 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.
2
For
integral
units only
Domestic Air Conditioner
Introduction
Warning
Be 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.
Be 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.
When 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.
Do 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.
Do 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.
If 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.
When 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 immediately.
3
Domestic Air Conditioner
Introduction
Caution
Installation 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
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.
If 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.
Warning
Do 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.
4
Introduction
Caution
Check 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.
If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can
cause the unit to fall, resulting in injury.
Check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can
cause an electrical shock.
Be 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.
5
Domestic Air Conditioner
2 List of fuctions
Functions
Category
Y/N
Child lock
Avoid the child's wrong operation on the remote controller
Y
3D air flow
The 3D airflow is able to deliver the airflow horizontally and vertically.
Y
24Hour timer
Use the timer function to set on,or off,or from on to off,or from off to on
Y
Auto restart
Automatic return to previous operation conditions after sudden power blackout
Y
Easy clean
design
The panel is easy to wash and the airflow vents can be detached easily
Y
With twin-blade technology ,the airflow can be adjusted not to blow directly
Y
Anti-mold filter
Catches most small particles and remove unpleasant odors effectively.
Y
Sleep mode
The setting temprature and the indoor noise can be adjusted to a more
comfortable level when you set the "sleep mode"during night sleep
Y
4 Fan setting
Slect the fan speed LO,MED,HI,AUTO
Y
Adjust the last fixed operation mode automatically.
Y
Quick cooling or heating
Y
Lower noise operation condition
Y
Intelligent air
Auto mode
Power mode
Soft mode
RCD module
RCD module can strongly degrade formaldehyde that
caused by the chemical products.
optional
Super NanoQuqa
Super Nano-Quqa can ionize water molecules into
nanometer water ion, which can be easily absorbed by skin.
optional
Note:
Y: Holding Functions
N : No Functions
6
3 Specifications
YJHMXH007/009/012BARR-FX
YJU2YH014BARRA-X
07/09+09
M odel
07/09+12
C o o lin g
H e a tin g
C o o lin g
H e a tin g
Kw
3 .9
4 .2
4
4 .2
B tu /h
13300
14330
13650
14330
k c a l/h
3354
3612
3440
3612
L /h
2 .4
-
2 .6
-
R u n n in g C u rre n t(R a te d )
A
4 .8
5
4 .9
5
P o w e r C o n s u m p tio n R a te d (M in .-M a x )
W
1040
1090
1070
1090
P o w e r F a c to r
%
97
97
97
97
W /W
5 .1
3 .4
5 .1
3 .4
C a p a c ity R a te d (M in .-M a x .)
M o is tu re R e m o va l
C O P R a te d (M in .-M a x .)
P ip in g C o n n e c tio n s
L iq u id
mm
Φ 6 .3 5
Φ 6 .3 5
G as
mm
Φ 9 .5 2
Φ 9 .5 2
D ra in
mm
Φ 16
Φ 16
H e a t In s u la tio n
B o th L iq u id a n d G a s P ip e s
M a x .In te ru n it P ip in g L e n g th
m
3 0 ˄d o u b le ˅2 0 ˄s in g le ˅
3 0 ˄d o u b le ˅2 0 ˄s in g le ˅
M a x .In te ru n it H e ig h t D iffe re n c e
m
15
15
C h a rg e le s s
m
20
20
g /m
20
20
A m o u n t o f A d d itio n a l C h a rg e o f R e frig e ra n t
YJHMXH007/009BARR-FX
In d o o r U n it
F ro n t P a n e l C o lo r
A ir F lo w R a te
(c o o lin g /h e a tin g )
W h ite
3
m /m in (c fm )
H
7 .5 (2 6 5 )/7 .0 (2 4 7 )
7 .5 (2 6 5 )/7 .1 (2 5 0 )
M
7 .2 (2 5 4 )/6 .3 (2 2 2 )
6 .5 (2 2 9 )/6 .1 (2 1 5 )
L
6 .2 (2 1 9 )/5 .7 (2 0 1 )
5 .5 (1 9 4 )/5 .2 (1 8 3 )
T yp e
Fan
YJHMXH012BARR-FX
C ro s s F lo w F a n
M o to r O u tp u t
W
20
20
Speed
S te p s
4 S te p ,S ile n t,A u to
4 S te p ,S ile n t,A u to
A ir D ire c tio n C o n tro l
R ig h t, L e ft, H o rizo n ta l, D o w n w a rd
A ir F ilte r
R e m o va b le /W a s h a b le /M ild e w P ro o f
R u n n in g C u rre n t(R a te d )
A
0 .1 5
0 .1 5
P o w e r C o n s u m p tio n R a te d
W
33
33
T e m p e ra tu re C o n tro l
M ic ro c o m p u te r C o n tro l
D im e n s io n s (H *W *D )
mm
265x795x187
265x795x187
P a c k a g e d D im e n s io n s (H *W *D )
mm
360x871x304
360x871x304
W e ig h t
kg
8 .8
8 .8
G ro s s W e ig h t
kg
1 1 .3
1 1 .3
H /M /L
dBA
5 2 /4 7 /4 2 /4 0
5 3 /4 7 /4 4 /4 1
H
dBA
62
62
O p e ra tio n S o u n d (c o o lin g /h e a tin g
S o u n d P o w e r(c o o lin g /h e a tin g )
7
YJU2YH014BARRA-X
O u td o o r U n it
07/09+09
C a s in g C o lo r
07/09+12
W h ite
C o m p re s s o r
T yp e
ro ta ry C o m p re s s o r
M odel
D A 1 0 8 X 1 C -2 0 F Z 3
M o to r O u tp u t
855
855
E S T E R L IL V G 7 4
E S T E R L IL V G 7 4
0 .4 8
0 .4 8
W
M odel
R e frig e ra n to il
C h a rg e
L
R 410A
M odel
R e frig e ra n t
1 .2
1 .2
3
m /m in
3 1 .2
3 1 .2
c fm
1101
1101
C h a rg e
A ir F lo w R a te (H /L )
(c o o lin g /h e a tin g )
kg
T yp e
P ro p e lle r
Fan
W
40
40
R u n n in g C u rre n t(R a te d )(c o o lin g /h e a tin g )
A
6 .7
8 .6
P o w e r C o n s u m p tio n R a te d (c o o lin g /h e a tin g )
W
1400
1800
P o w e r F a c to r(c o o lin g /h e a tin g )
%
98
98
S ta rtin g C u rre n t (c o o lin g /h e a tin g )
A
8
8
M o to r O u tp u t
D im e n s io n s (W *D *H )
mm
780x270x540
P a c k a g e d D im e n s io n s (W *D *H )
mm
905x375x612
W e ig h t
kg
38
G ro s s W e ig h t
kg
41
O p e ra tio n S o u n d (c o o lin g /h e a tin g )
S o u n d P o w e r(c o o lin g /h e a tin g )
H /M /L
dBA
5 1 .0
5 1 .0
H
dBA
6 2 .0
6 2 .0
Cooling
Heating
Piping Length
Indoor:27 DB/19 WB
Outdoor:35 DB/24 WB
Indoor:20 DB
Outdoor:7 DB/6 WB
5m
Conversion Formulae
kal/h=kWx860
Btu/h=kWx3414
cfm=m³/minx35.5
Connector wring diagram
4.Printed Circuit Board Connector Wiring Diagram
indoor unit
Connectors
PCB(1) (Control PCB) For YJHMXH007/09/12BARR-FX
1) CN9ʙCN27 Connector for fan motor and feedback
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) CN30ʙCN31 Connector transformer
7) CN32 Connector for display board
8) CON6ʙCON8 Connector for ions generator
9) CON7 Connector for communicate between the indoor board and the outdoor board
10) CN36 Connector for long-range control
11) CN34 Connector for Net Module
12) CN20 Connector for room card
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 Varistor0
4) FUSE1 Fuse 3.15A/250VAC
Domestic Air Conditioner
Connector wring diagram
PCB(1)
CN1
SW1
CN27
CN11
CN32
CN26
CN20
CON1
CN36
CON2
CON6
CN30
CON8
CN34
CON7
CN31
SW2
Domestic Air Conditioner
Connector Wiring Diagram
outdoor unit
For YJU2YH014BARRA-X
1) CN1,CN2 Connector for power N and L
2) CN3 CN8 Connector for ground
3) CN23 Connector for DC POWER 15Vand 5V to the module board
4) CN9,CN10 Connector for CN9,CN8 on the module board
5) CN22 Connector for fan motor
6) CN11 Connector for four way valve coil
7) CN17,CN18,CN19,CN20,CN21 CN47 Connector for thermistors
8) CN24 Connector for communicate between the control board and the module board
9) CN28,CN25 Connector to P and N of the module board
10) CN36 Connector for communicate between indoor and outdoor unit
11) CN15
CN16 Connector for electric expansion valves
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 CN28,CN25 on the control board
LO (CN6),LI(CN7) Connector for reactor
AC_L(CN8),AC_N(CN9) Connector for CN10,CN9 on the control board
CN2(U), CN3(V), CN4(W) connector for the compressor
: Other Designations
PCB(1) (Control PCB)
1) FUSE 1, Fuse (25A,250VAC)
2)LED 1 keep light representative normal ,if keep flash interval representative trouble Alarm
3)RV1,RV2,RV3 Varistor
11
Domestic Air Conditioner
Connector Wiring Diagram
CN9
CN10
CN3
CN36
CN8
CN2
CN49
CN11
CN1
CN15
CN45
CN16
CN47
CN17
CN18
CN19
CN20
CN21
CN22
CN23
CN24
CN25
CN28
PCB(1)
12
Domestic Air Conditioner
Connector Wiring Diagram
CN6
CN8
CN7
CN9
CN10
CN11
CN4
CN3
CN2
CN1
CN5
PCB(2)
13
Domestic Air Conditioner
Functions and control
5.Funcitions and Control
5.1 Main functions and control specification
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
Temperature 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
dehumidifying). 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 requirement of 3 minutes’ delay should be satisfied.)
* timing system on/off function.
* Dormant control function.
14
Domestic Air Conditioner
Functions and control
5.1.3
Dehumidifying mode.
* temperature control range: 16---30ć
* temperature difference:
r1ć
Control feature: send the dehumidifying 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 dehumidifying
frequency for 10 minutes and then at the low dehumidifying 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
dehumidifying). 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 requirement of 3 minutes’ delay should be satisfied.)
* Coil protection (synchronic overheating protection) are installed for the four directions latch
malfunctions when dehumidifying.
* Timing system on/off function.
* Dormant control function.
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.
If Tr<Ts+, the outdoor system will be turned on again, the indoor fan will be at the cold air proof mode.
15
Domestic Air Conditioner
Functions and control
*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+2ć, medium speed.
When Tr> Ts+2ć, 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.
Set speed
Heat start temp 1
Low speed
Keep the high
Heat start temp 2
speed. The fan
Light speed
doesn’t stop
Heat start temp 3
Fan/off
Heat start temp 4
Fan/off
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 satisfied, 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
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.
16
Domestic Air Conditioner
Functions and control
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 dehumidifying and airflow-sending operation.
5.1.7 Air refreshing
After 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 Nano-Aqua operates
to realize the ions sending function.
If the indoor fan stops, the Nano-Aqua is turned off.
When the Nano-Aqua is turned off, if the air refreshing system is turned on, the Nano-Aqua will be
turned on when the fan operates.
5.1.8 Timing
You 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 signal.
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/ dehumidifying 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
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 setting temperature will fall
2 centigrade after 1 hour’s operation and will fall 2 centigrade 1 hour later. 3 hours after the preceding
17
Domestic Air Conditioner
Functions and control
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
will be stored in the malfunction resume and will not be revealed.
5.1.12 High load protection control
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Domestic Air Conditioner
Functions and control
The outdoor 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 signals 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 temperature 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
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.
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Domestic Air Conditioner
Functions and control
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 button 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 signal: 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. under 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 cooling
signal to the outdoor system. Meanwhile, you can fix the indoor system at high speed mode, the
location of the airflow direction 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 direction board can be switched to the maximal position.
c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal, and
the system will enter the remote setting status.
5.1.19 Test program
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Domestic Air Conditioner
Functions and control
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:
Connect 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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Domestic Air Conditioner
Functions and Control
5.2The control system of outdoor unit
5.2.1
The operation frequency of outdoor unit and its control
5.2.1.1 The operation frequency control of compressor
The operation frequency scope of compressor
Mode
Minimum operation frequency
Maximum operation frequency
Heating
34Hz
96Hz
Refrigeration
34Hz
72Hz
5.2.1.2 The starting of compressor
When the compressor is started for the first time, it must be kept under the conditions of
34Hz,56Hz,82Hz 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) then 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 The minimum/maximum frequency limitation
A While refrigerating:
is the maximum operation frequency of the
compressor;
IN
is the minimum operation frequency of the compressor.
B While heating:
is the maximum operation frequency of the compressor;
IN
is the minimum operation frequency of the compressor.
1
The frequency limitation which is affected by the environment temperature.
Heating mode:
Serial
No.
Temperature scope
Frequency limitation
1
Twh <-12
Max_hz8
120HZ
2
Twh <-8
Max_hz7
120 HZ
3
Twh <-2
Max_h z4
120HZ
4
Twh <5
Max_hz5
120 HZ
5
5<Twh
Max_hz1
100HZ
6
12<Twh 18
Max_hz2
56HZ
7
18<Twh
Max_hz6
38HZ
12
Remarks: Twh :the environment temperature of outdoor;
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::
22
Domestic Air Conditioner
Functions and Control
Serial No.
Temperature scope
Frequency limitation
1
Twh 16
Max_hz1
34HZ
2
16<Twh 24
Max_hz2
40 HZ
3
24<Twh 32
Max_hz3
62 HZ
4
32<Twh 44
Max_hz4
72 HZ
5
Twh>44
Max_hz5
40 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=
Ti*Pi / Pi ( Ti=|Tst_i-Tnh_i the indoor environment temperature| ;Pi i the
ability of the indoor unit)
Refrigeration/dehumidification:
T
The percentage of
the rated frequency P
1
2
3
50%
70%
100%
120%
<1
1
2
3
70%
100%
114%
<1
>=4
140%
Heating mode
T
The percentage of the
rated frequency P
50%
>=4
180%
K= Ki/the number of running machines
The indoor set
airflow speed
Breeze
Low
Medium
High
Strong
Quiet
Healthy
airflow
The percentage
of the rated
frequency Ki
70
80%
90%
100%
120%
70%
70%
The calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-* P K
When the healthy airflow has been set: F =F-ED-* P K airflow speed
K healthy airflow
When refrigerating, it is needed to satisfy
IN
< F<
When heating, it is needed to satisfy
IN r< F<
r
5.2.2
The outdoor fan control (exchange fan)
When 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).
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Domestic Air Conditioner
Functions and Control
5.2.2.1 The outdoor fan control when refrigerating or dehumidifying
After 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.
The temperature of the
outdoor air
Ta
The temperature of the outdoor
coil Te
Airflow speed
Ta 30
High
26
Ta<30
Keeping the speed
24
Ta<26
Medium
23
Ta<24
Keeping the speed
5
Ta<23
Ta<5
Low
15
Te
Low
15 >Te
Stop
Remarks: Ta:The temperature of the outdoor air; Te: The temperature of the outdoor coil.
5.2.2.2 The outdoor fan control when heating
The temperature of the outdoor
air Ta
Airflow speed
Ta 22
Low
19
Ta<22
Keeping the speed
16
Ta<22
Medium
14
Ta<16
Keeping the speed
Ta<14
High
Remarks: Ta:The temperature of the outdoor air; Te: The temperature of the outdoor coil.
5.2.3
The control of the outdoor electronic expansion valve
When 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
80-----480 steps
The valves are adjusted according to the degree of superheat SHa
SHa.
5.2.4
Four way control
For the details of Defrost four-way valve control, see the Defrost 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.
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Domestic Air Conditioner
Functions and Control
5.2.5 Protection function
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
Abnormal stop
110
Decreasing the frequency rapidly 1HZ/second
100
Decreasing the frequency slowly (1HZ/10seconds)
98
The frequency doesn’t change.
93
Increasing the frequency (1HZ/10second)
90
Increasing the frequency 1HZ/1second
lasts for 20 seconds. Overheating protection of air-blowing, alarm malfunction to
TTC>=110
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 55 , 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 47 , recover to the normal control.
TC
Fgh_t1 2
N
59
Fgh_t2 2
Fgh_t3 2
Fgh_t4 2
Fgh_t5 2
Normal
The compressor stops
Fgh_t1 65
Decreasing the frequency rapidly
Fgh_t2
P Decreasing the frequency slowly
Fgh_t3
55
Q Prohibiting increasing the frequency
Fgh_t4
51
R Increasing slowly
Fgh_t5
47
25
Domestic Air Conditioner
Functions and Control
N Decreasing at the speed of 1HZ/1 second
P Decreasing at the speed of 1Hz/10 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
During the starting process of the compressor, if the current of the compressor is greater than
17A 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 power is off.
During the starting process of the compressor, if the AC current is greater than 12A, 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 10A, 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 9A, the
frequency of the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 8A, 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 15A, 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 13A, 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 11A, the
frequency of the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 10A, 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 10AD
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 20AD
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).
26
Domestic Air Conditioner
Functions and Control
11 //ice_temp_3+5
9
ce_temp_3+3
ice_temp_3
ice_temp_2
ice_temp_1
6
5
3
0
Increasing slowly
8 //ice_temp_3+2
Keeping the frequency
6
Decreasing slowly
Decreasing rapidly
ice_temp_1
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.
When Tpg_indoor begins to rise again, and ice_temp_2 =Tpg_indoor = ice_temp_3 , the
frequency of thecompressor doesn’t change.
When ice_temp_3 Tpg_indoor ice_temp_3+3 , the frequency of the compressor increases at
the speed of 1HZ/10seconds.
last for 2 minutes, and then the outdoor unit will stop, and report
For example, Tpg_indoor<= 0
underload malfunction, but don’t send malfunction report to the indoor.
The compressor stops for more than 3 minutes, Tpg_indoor> ice_temp_3+2 , 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 The socket protect
If the socket temperature is higher than 120 ,the outdoor unit will stop and report
malfunction(the LED light flashing 36 times).The compressor stops for more than 3 minutes, the
compressor recovers.
5.2.5.8 T emperature protection of the outdoor refrigerating coil
When the Defrost temperature and the sensor’s temperature are higher than 65 , the frequency
of the compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest
and higher than 60 , keep the
frequency. When the temperatures are lower than 65
frequency of the compressor. When the temperatures are lower than 60 , relieve the Defrost
temperature protection.
5.2.5.9 Malfunction display and malfunction handling
a) For 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
27
Domestic Air Conditioner
Functions and Control
light should be off for 5 seconds.
b) For the units’ malfunctions 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 should be off for 10 seconds. Then report according to the order : unit A unit B
unit C unit 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 out 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.
F12
1
Outdoor
F1
2
The protection of IPM
F22
3
Overcurrent
F3
4
Communication fault between the IPM and outdoor PCB
F19
6
Power voltage is too high or low
F4
8
Overheat protection for Discharge temperature
F21
10
Defrost temperature sensor failure
F6
12
Ambient temperature sensor failure
F25
13
Discharge temperature sensor failure
E7
15
Communication fault between indoor and outdoor units
F11
18
deviate from the normal
----
19
Loop
E9
21
High work-intense protection
---
24
Overcurrent of the compressor
---
25
Overcurrent protection for single-phase of the compressor
----
36
The socket protect
of
EEPROM error
protection of AC electricity for the outdoor model
for the compressor
the station detect error
28
Domestic Air Conditioner
Functions and control
5.3 Value of thermistor
Indoor unit
Room sensor and Pipe Sensor
R25ć=10K¡f3%
B25ć/50ć=3700Kf3%
Temp.((ć))
Max.(KΩ)
Normal(KΩ)
Min.(KΩ)
-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
-6
43.5912
40.5800
37.7429
-1.47
1.39
29
Tolerance(ć)
Domestic Air Conditioner
Functions and control
-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
39
6.0170
5.7454
5.4812
-1.25
1.22
30
Domestic Air Conditioner
Functions and control
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
84
1.3730
1.2525
1.1415
-3.27
3.01
31
Domestic Air Conditioner
Functions and control
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
Outdoor Unit
Ambient Sensor, Defrost Sensor, Pipe sensor
R25 =10K
3% B25 /50 =3700K 3%
Max.(KΩ)
Normal(KΩ)
Min.(KΩ)
-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
Temp.(
)
32
Tolerance(
)
Domestic Air Conditioner
Functions and Control
-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
-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
33
Domestic Air Conditioner
Functions and Control
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
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
34
Domestic Air Conditioner
Functions and Control
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
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
35
Domestic Air Conditioner
Functions and Control
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
Discharge Sensor
R80ć=50K¡f3%
B25/80ć=4450Kf3%
Temp.((ć))
Max.(KΩ)
Normal(KΩ)
Min.(KΩ)
-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
36
Tolerance(ć)
Domestic Air Conditioner
Functions and Control
-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
-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
Domestic Air Conditioner
Functions and Control
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
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
38
Domestic Air Conditioner
Functions and Control
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
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
39
Domestic Air Conditioner
Functions and Control
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
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
40
Domestic Air Conditioner
Service diagnosis
6. Service Diagnosis
6.1 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.
6.2 Problem Symptoms and Measures
SymptRm
Check Item
Details of Measure
None of the units
operates
Check the power supply.
Check the indoor PCB
Check to make sure that the rated voltage is supplied.
Check to make sure that the indoor PCB is broken
Operation
Check the power supply.
A power failure of 2 to 10 cycles can stop air conditioner
sometimes stops.
operation.
Check for faulty operation
of the electronic
Equipment
operates but does expansion valve.
not cool, or does
not heat (only for
heat pump)
Diagnosis by service port
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.
Check for insufficient gas.
pressure and operating
current.
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.
41
Domestic Air Conditioner
Service diagnosis
6.3 Error Codes and Description indoor display
Code indication
Indoor
displaying
panel code
indication
Indoor
and
Outdoor
Indoor Malfunction
Outdoor
Page
(LED1 flash
times)
Communication fault between indoor and
E7
15
E1
--
Room temperature sensor failure
Page .43
E2
--
Heat-exchange sensor failure
Page .43
E4
--
Indoor EEPROM error
Page . 44
E14
--
Indoor fan motor malfunction
Page . 45
F12
1
Outdoor EEPROM error
Page .52
F1
2
The protection of IPM
Page .47
F22
3
F3
4
F19
6
F4
8
F8
9
F21
Outdoor
Malfunction
Reference
fault description
outdoor units
Overcurrent
protection of
AC electricity
for the outdoor model
Communication fault between the IPM and
outdoor PCB
Power voltage is too high or low
Overheat
protection
Page .52
Page .48
Page.49
Page . 50
for
Discharge
temperature
Page .51
Outdoor DC fan motor fault
Page .46
10
Defrost temperature sensor failure
Page .43
F7
11
Suction temperature sensor failure
Page .43
F6
12
Ambient temperature sensor failure
Page .43
F25
13
Discharge temperature sensor failure
Page .43
F11
18
deviate from the normal for the compressor
Page .54
F28
19
Loop of the station detect error
Page . 54
F2
24
Overcurrent of the compressor
Page .48
F23
25
Overcurrent protection for single-phase of the
compressor
42
Page .48
Domestic Air Conditioner
Service diagnosis
6.3.1 Thermistor or Related Abnormality
Indoor Display
E1: Room temperature sensor failure
E2: Heat-exchange sensor failure
Outdoor display
LED1 flash 10 times˖Defrost temperature sensor failure
LED1 flash 11 times˖Suction temperature sensor failure
LED1 flash 12 times˖Ambient temperature sensor failure
LED1 flash 13 times˖Discharge temperature sensor failure
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
The temperatures detected by the thermistors are used to determine thermistor errors
When the thermistor input is more than 4.92V or less than 0.08V during compressor
operation.
z
Note: The values vary slightly in some models
Supposed
Causes
■ Faulty connector connection
■ 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.
Check the connector connection.
NO
Correct the connection
Is it normal?
Yes
Thermistor resistance check
NO
Replace the thermistor
Is it normal?
Yes
Replace the indoor unit PCB
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.
43
Domestic Air Conditioner
Service diagnosis
6.3.2 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
■
Faulty EEPROM data
Causes
■
Faulty EEPROM
■ 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.
44
Domestic Air Conditioner
Service diagnosis
6.3.3 Indoor AC fan motor malfunction
Indoor Display
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
E14
The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation
when the detected rotation feedback signal don’t received in 2 minutes
■ Operation halt due to breaking of wire inside the fan motor.
■ Fan motor overheat protection
■ Operation halt due to breaking of the fan motor lead wires
■ Detection error due to faulty indoor unit PCB
* Caution Be sure to turn off power switch before connect or disconnect connector, or else
Troubleshooting
Supposed
Causes
parts damage may be occurred.
Pull out the terminals on the indoor
1R
Check whether terminals
mainboard and reinsert them.
on indoor pcb is well ?
<HV
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
12
Yes
Measure whether there is voltage pulse (0-5VDC)
<HV
check whether motor can run
between the positions middle wire and black wire
when turn on the unit
of Terminal CN2 on the indoor PCB
Is it ok?
12
12
<HV
the indoor motor is damaged and need replace
the indoor pcb is damaged and need replace
45
Domestic Air Conditioner
Service diagnosis
6.3.4 Outdoor DC fan motor fault
Outdoor 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
Causes
Ƶ DC fan motor protection dues to the DC fan motor faulty
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.
Check whether Terminal on the outdoor
mainboard is well inserted. NO
Reinsert the terminals
Is it normal?
Yes
Electrify the machine again and turn it
NO
on in the Cool state with the remote
controller. check whether motor can
run˛
Measure the voltage between 1 and 3 of the terminal of
fan motor on the mainboard about DC310V, Measure
Yes
the voltage between 3 and 4 of the terminal about
DC15V. Measure the voltage between 5 and 3 of the
Measure the voltage between 3 and 6 of
terminal about 1-6v.
the terminal about 0-5v.
Yes
Is it normal?
Is it normal?
Yes
N0
N0
the motor of the outdoor unit is damaged and
The mainboard of the outdoor unit is
needs replacing.
damaged and needs replacing
46
Domestic Air Conditioner
Service diagnosis
6.3.5 IPM protection
Outdoor display:
Method of
Malfunction
Detection
LED1
flash 2 times
IPM protection is detected by checking the compressor running condition and so on
Malfunction
Decision
Conditions
■ The system leads to IPM protection due to over current
■ The compressor faulty leads to IPM protection
■ circuit component of IPM is broken and led to IPM protection
Supposed
Causes
■ IPM protection dues to the compressor faulty
■ IPM protection dues to faulty PCB of IPM module
■ Compressor wiring disconnected
* Caution Be sure to turn off power switch before connect or disconnect connector,
Troubleshooting
or
else parts damage may be occurred.
Electrify the machine again and turn it on
<(6
with the remote controller,If malfunctions
IPM Module is damaged and
are reported before or upon the compressor
needs replacing.
being started up,
Malfunction unsolved
12
The
compressor
is
started
normally,
but
malfunctions are reported after it has run for some
time.
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.
47
Domestic Air Conditioner
Service diagnosis
6.3.6 Over-current of the compressor
Outdoor Display:
LED1 flash 3 or 24 or 25 times
Method of
Malfunction
Detection
The current of the compressor is too high
Malfunction
Decision
Conditions
when the IPM Module is damaged
or the compressor is damaged.
power supply voltage is too low or too high
Supposed
Causes
Troubleshooting
■ Faulty IPM Module
■ Faulty compressor
■ Faulty power supply
* 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
YES
with the remote controller, If malfunctions
IPM Module is damaged and
are reported before or upon the compressor
needs replacing.
being started up,
NO
The compressor is started normally, but
Yes
malfunctions are reported after it has
Repair the power supply
run for some time. Check the power
supply is too low or too high
NO
NO
The system may have been over or under
charged with gas, which can be judged through
the pressure of the measuring system.
48
Domestic Air Conditioner
Service diagnosis
6.3.7 The communication fault between IPM and outdoor PCB
Outdoor display: LED1 flash 4 times
Method of
Malfunction
Detection
Communication is detected by checking the IPM module and the outdoor PCB
Malfunction
Decision
Conditions
■ The outdoor PCB broken leads to communication fault
■ The IPM module broken leads to communication fault
Supposed
Causes
■ The outdoor PCB is broken
■ The IPM module is broken
■ Communication wiring disconnected
Troubleshooting
* Caution Be sure to turn off power switch before connect or disconnect connector,
else parts damage may be occurred.
or
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
NO
1) Pull out and reinsert the terminals.
2) Replace connected wire
Are they good?
Malfunction unsolved
YES
Electrify the machine again and turn it
on, Check whether the voltage between
YES
1 and 2 of Terminal CN23 is about DC5V,
Replace the outdoor IPM module
Check whether the voltage between2
with a new one.
and 3 of Terminal CN23 is about DC15V,
NO
Replace the outdoor mainboard with a new one
49
Domestic Air Conditioner
Service diagnosis
6.3.8 Power Supply Over or under voltage fault
Outdoor display:
LED1
flash 6 times
The power supply is over voltage
Method of
Malfunction
Detection
An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit.
Malfunction
Decision
Conditions
An voltage signal is fed from the voltage detection circuit to the microcomputer
Supposed
Causes
■ Supply voltage not as specified
■ the IPM module is broken
■ 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.
Electrify the machine again and turn it on with
the remote controller. Check whether the
compressor is started normally
Yes
Is it ok?
Maybe there is some disturbance
No
Yes
Test the outdoor power supply
Change the IPM module
(+310VDC) with a multimeter.
check whether the power
is >150 V or <390V?
NO
Yes
Change the IPM module
~230 is ok?
NO
This question may be caused by the power. Repair
the power supply.
50
Domestic Air Conditioner
Service diagnosis
6.3.9 Overheat Protection For Discharge Temperature
Outdoor display: LED1 flash 8 times
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
The Discharge temperature control is checked with the temperature being detected
by the Discharge pipe thermistor
when the compressor discharge temperature is above 110ć
■ Electronic expansion valve defective
■ Faulty thermistor
■ Faulty PCB
* 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
1) The cryogen may have been leaked during
YES
The temperature exceeds
110 ć
installation, or there may be leakage in the piping
system.
shortly after the
2) There may be other causes to make the exhaust
machine starts up?
temperature too high.
NO
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
YES
The
results
The sensor is damaged. Replace the sensor
deviate
with a new one.
much?
NO
The outdoor mainboard is damaged and needs be
replaced
51
Domestic Air Conditioner
Service diagnosis
6.3.10 The communication fault between indoor and outdoor
Indoor display
outdoor display
E7
LED1 flash 15 times
Communication is detected by checking the indoor PCB and the outdoor PCB.
Method of
Malfunction
Detection
■ The outdoor PCB broken leads to communication fault.
■ The indoor PCB broken leads to communication fault.
Malfunction
Decision
Conditions
Supposed
Causes
■
■
■
■
Troubleshooting
Communication wiring disconnected.
The indoor PCB is broken.
The outdoor PCB is broken.
The Module PCB is broken.
* Caution Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Restart the a/c and it
Yes
The outdoor mainboard needs
dehumidification.
becomes normally.
NO
If starting up normally, but
NO
The outdoor mainboard needs
malfunction occurs again after a
dedust.
while
YES
Check whether the linking cable
No
1. Reconnect the linking cable;
between the indoor and outdoor is well
2. Replace the linking cable with new
connected or whether its core wires are
one.
well insulated.
Yes
˄A˅
52
Domestic Air Conditioner
Service diagnosis
˄A˅
Check the indoor mainboard.
Yes
Measure the voltage between Jumpers 3 and
4 of IC1 on the indoor mainboard with a
No
multimeter.
Test the outdoor power supply (230VAC
and +310VDC) with a multimeter.
If the voltage is of a constant
value of 0V DCto5V DC
If 230VAC is available but 310DC not,
the power module is damaged, replace it
with a new one.
YES
If both 230VAC and 310DC are
NO
The indoor mainboard is damaged; replace
available, measure
it with a new one.
+12V(from7805) is available.
The outdoor mainboard is damaged;
Replace them with a new one.
YES
Measure the AC voltage between positions 1
If the value is constant at about 30V, the
and 3 on the terminal of outdoor unit with a
indoor mainboard is damaged, replace it with
multimeter.
a new one.
If the value varies between 0 and 80 VAC,
The outdoor mainboard is damaged; replace
the outdoor mainboard is damaged, replace it
it with a new one.
with a new one.
53
Domestic Air Conditioner
NO
Service diagnosis
6.3.11 Loss of synchronism detection
Inverter side current detection is abnormal
Outdoor Display
LED1 flash 18 times
LED1 flash 19 times
Method of
Malfunction
Detection
The position of the compressor rotor can not detected normally
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
when the wiring of compressor is wrong or the connection is poor;
or the compressor is damaged
Ƶ Faulty The wiring of compressor
Ƶ Faulty compressor
Ƶ Faulty PCB
* Caution Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred.
NO
Within 3 minutes after the machine is
supplied with power and turned on with
the remote controller, check whether
the compressor can start up
1. The wiring of compressor is incorrect
or the connection is poor;
2. The compressor is damaged
YES
At first, the compressor start up ,soon the
compressor stopped with the LED1 on the
outdoor PCB blinks˄1Hz˅19/18 times
YES
IPM Module is damaged and needs
replacing.
Malfunction unsolved
the
Maybe there is some disturbance
54
Malfunctions exist also, the
compressor is damaged replace a
new one
Domestic Air Conditioner
Service diagnosis
6.3.12 High work-intense protection
Outdoor display
LED1 flash 21 times
Method of
Malfunction
Detection
High work-intense control is activated in the heating mode if the temperature
being sensed by the heat exchanger thermistor exceeds the limit.
Malfunction
Decision
Conditions
Activated when the temperature being sensed by the heat exchanger
rises above 65ć twices in 30 minutes.
Ƶ
Ƶ
Ƶ
Ƶ
Supposed
Causes
Troubleshooting
Faulty electronic expansion valve
Dirty heat exchanger
Faulty heat-exchange sensor
Insufficient gas
* Caution Be sure to turn off power switch before connect or disconnect connector,
else parts damage may be occurred.
or
Electrify the machine again and turn it on with the
remote controller, check whether the wind
temperature is below 65ć
YES
The malfunction is reported
after the machine has run
for some time?
1 ǃ Check room temperature and
pipe temperature sensor.
2ǃthe temperature monitoring circuit
of the indoor mainboard
NO
YES
The indoor unit blows poorly
due to blocked filters or poor
condition of the fan?
1) Clean the filters
2) Reinstall the fan.
NO
Use some tools to measure the pressure of systemˈ
55
Domestic Air Conditioner
Exponent
7.Exponent
Parts and Functions
1
2
3
45
6
5
7
8
POWER/SOFT button is not available for 07k、09k、12k.
4
56
Domestic Air Conditioner
Exponent
Operation
Emergency operation and test operation
Base Operation
Emergency Operation:
Pi
Use this operation only when the remote controller
is defective or lost.
When the emergency operation switch is
pressed,the" Pi "sound is heard once, which
means 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.
Remote controller
SPEED
Room
Operation Designated Timer
temperature mode
temperature mode
Air flow
ABOVE 23OC
COOLING
26OC
NO
AUTOMATIC
BELOW 23OC
HEAT
23OC
NO
AUTOMATIC
(Cooling only uint˅ Operation Designated Timer
Air flow
Room temperature
mode temperature mode
O
O
FAN
AUTOMATIC
BELOW 23 C
NO
26 C
1. Unit start
Press ON/OFF on the remote controller, unit starts.
It is not possible to operate in dry mode.
2.Select operation mode
Press MODE button. For each press, operation mode
changes as follows:
Remote controller:
Test operation:
Test operation switch is the same as emergency switch.
Use this switch in the test operation when the room
AUTO
COOL
DRY
FAN
o
HEAT
temperature is below 16 C, do not use it in the
normal operation.
3.Select temp.setting
Continue to press the test operation
switch for more than 5 seconds . After
you hear the "Pi" sound twice, release
your finger from the switch: the cooling
Press TEMP+ TEMP- button
TEMP+ Every time the button is pressed, temp.setting
increase 1oC,if kept depressed, it will increase
rapidly
TEMP- Every time the button is pressed, temp.setting
decrease 1oC,if kept depressed, it will decrease
rapidly
Select a desired temperature.
operation starts with the air flow speed "Hi".
Air Flow Direction Adjustment
1.Status display of air flow
4.Fan speed selection
Press FAN SPEED button. For each press, fan speed
changes as follows:
Remote controller:
LOW
MED
Vertical flap
Pos.1
Pos.2
Pos.3
Pos.4
Pos.5
(Auto swing)
AUTO
HI
2.Left and right air flow adjustment(manual)
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.
Operation Remote Display
Controller Board
Mode
Pi Pi
Move the vertical blade by a knob on air conditioner
to adjust left and right direction referring to Fig.
Remote controller can memorize each operation status. When starting it
next time,just press ON/OFF button and unit will run in previous status.
Note
AUTO
Under the mode of auto operation, air conditioner will
automatically select Cool or Heat operation according
to room temperature. When FAN is set to AUTO, the
air conditioner automatically adjusts the fan speed
COOL
according to room temperature.
DRY
In DRY mode, when room temperature becomes
lower than temp.setting+2 oC,unit will run intermittently
at LOW speed regardless of FAN setting.
FAN
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.
Cautions:
When adjusting the flap by hand,turn off the unit.
When humidity is high,condensate water might occur
at air outlet if all vertical louvers are adjusted to left or
right.
It is advisable not to keep horizontal flap at downward
position for a long time in COOLor DRY mode ,
otherwise, condensate water might occur.
Note:
When restart after remote turning off, the remote
controller will automatically memorize the previous
set swing position.
HEAT
57
Domestic Air Conditioner
Exponent
Operation
Sleep Operation
3. In AUTO mode
The unit operaters in corresponding sleep mode
adapted to the automatically selected operation
mode.
Before going to bed,you can simply press the SLEEP
button and unit will operate in SLEEP mode and bring
you a sound sleep.
4. In FAN mode
It has no SLEEP function.
5.Set the wind speed change when sleeping
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.
Note
When TIMER function is set, the sleeping function
can't be set up .After the sleeping function is set up ,
if user resets TIMER function, the sleeping function
will be cancelled;the machine will be in the state of
timing-on.
Use of SLEEP function
After the unit starts,set the operation status,
then press SLEEP button before which the
clock must be adjusted and time being set.
Operation Mode
1. In COOL,DRY mode
POWER/SOFT Operation
1 hours after SLEEP mode starts,temp.will become
1OC higher than temp.setting.After another 1 hours,
temp.rises by 1OC 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.
SLEEP operation starts
1 hr
(1) POWER Operation
When you need rapid heating or cooling, you can use this
function. In COOL mode, fan speed automatically takes
high speed of AUTO fan mode. In HEAT mode, fan speed
automatically takes medial speed of AUTO fan mode.
(2) SOFT Operation
You can use this function when silence is needed for
rest or reading. In SOFT operation mode, fan speed
SLEEP operation stops
Approx.6hrs
automatically takes low speed of AUTO fan mode.
Rises 1OC
Note ˖
During POWER operation, in rapid HEAT or COOL
mode , the room will show inhomogeneous temperature
distribution. Long period SOFT operation will cause
effect of not too cool or not too warm.
Rises 1OC
1 hr
Temp.setting
Unit stop
In COOL, DRY mode
To cancel POWER or SOFT operation
Press POWER/SOFT button again ,POWER or SOFT
disappears.
2. In HEAT mode
1 hours after SLEEP mode starts,temp will
become 2 OC lower than temp.setting.After
another 1 hours,temp decrease by 2 OC
futher.After more another 3hours,temp.rises
by 1OC 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.
Temp.setting
1 hr
NOTE:
Cooling only unit do not have displays and functions
related with heating.
Unit stop
Decreases 2OC
1 hr
Decreases 2OC
3 hrs
3 hrs
SLEEP
operation starts
Rises 1OC
SLEEP
operation stops
In HEAT mode
58
Domestic Air Conditioner
Exponent
Operation
For Smart Use of The Air Conditioner
Timer On/Off On-Off Operation
Set clock correctly before starting TIMER 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:
Setting of proper room
temperature
Do not block the air inlet
or outlet
Proper
temperature
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 TIME+ /TIME- button to set time.
It can be adjusted within 24 hours.
4.After setting correct time, press SET button to confirm
"
"or"
" on the remote controller stops flashing.
5.Cancel TIMER mode
Just press TIMER button several times until TIMER mode
disappears.
Hints:
After replacing batteries or a power failure happens, time
setting should be reset.
Remote controller possesses memory function,when use
TIMER mode next time, just press SET button after mode
selecting if time setting is the same as previous one.
According to the Time setting sequence of TIMER ON or
TIMER OFF, either Start-Stop or Stop-Start can be
achieved.
Healthy airflow Operation
1.Press ON/OFF to starting
Close doors and win dows
during operation
During cooling operation
prevent the penetration of
direct sunlight with
curtain or blind
If the unit is not to be used
for a long time, turn off the
power supply main switch.
OFF
Use the lou vers effectively
Remote Controller
Do not use water wipe the controller with a
dry cloth.Do not use glass cleaner or chemical
cloth.
Use the timer effectively
Indoor Body
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.
Setting the comfort work conditions.
2.The setting of healthy airflow function
appears on the
1).Press the button of healthy airflow ,
display. Horizontal airflow sending. Avoid the airflow
blows direct to the body.
2).Press the button of healthy airflow again,
appears on
the display. Downward airflow sending. Avoid the airflow
blows direct to the body.
3.The cancel of the healthy airflow function
Press the button of healthy airflow again, the unit goes on
working under the condition before the setting of 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
Do not use the following for cleaning
O
Gasoline,benzine, thinner or cleanser may
damage the coating of the unit.
O
Hot water over 40 C(104 F) may cause
discoloring or deformation.
Air Filter cleaning
Open the inlet grille by pulling it upward.
Remove the filter.
for a minute and then start, adjusting by remote
controller.
Push up the filter's center tab slightly until it is released
from the stopper, and remove the filter downward.
Clean the filter.
Note:
Use a vacuum cleaner to remove dust, or wash the filter with
water.After washing, dry the filter completely in the shade.
1.After setting the healthy airflow function, the position
grill is fixed.
2.In heating, it is better to select the
mode.
3.In cooling, it is better to select the
mode.
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 .
Attach the filter.
Attach the filter correctly so that the "FRONT" indication is
facing to the front.Make sure that the filter is completely
fixed behind the stopper.If the right and left filters are not
attached correctly, that may cause defects.
Once every
two weeks
Close the inlet grille.
59
Domestic Air Conditioner
Exponent
Maintenance
Replacement of Air Purifying Filter
(NOTE: Air purifying filter is optional part)
ATTENTION:
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.
1.Open the lnlet Grille
Prop up the inlet grille by using a
small device named grille-support
which located in the right side of
the indoor unit.
2.Detach the standard air filter
5.Close the Inlet Grille
Slide the knob slightly upward to
release the filter, then withdraw it.
Close the Grille surely
Detach old Air Purifying Filter
NOTE:
The photocatalyst air purifying filter will be solarized in fixed
time. In normal family, it will be solarized every 6 months.
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
using vacuum cleaner or flaping them lightly,otherwise ,
its performance will be affected.
Please keep the bacteria-killing medium air purifying filter in
the cool and dry conditions avoid long time directly sunshine
when you stop using it,or its ability of sterilization will be
reduced.
3.Attach Air Purifying Filter
Put air purifying filter appliances into the
right and left filter frames.
4.Attach the standard air filter
(Necessary installation)
60
Domestic Air Conditioner
Exponent
Cautions
WARNING
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.
WARNING
When abnormality such as burnt-small found,
immediately stop the operation button and
contact sales shop.
Check proper
installation of the
drainage securely
Use an exclusive
power source
with a circuit
breaker
STRICT
ENFORCEMENT
OFF
Connect power supply cord
to the outlet completely
STRICT
ENFORCEMENT
Use the proper voltage
STRICT
STRICT
ENFORCEMENT
ENFORCEMENT
Do not use power supply
Take care not to damage
the power supply cord.
cord in a bundle.
PROHIBITION
PROHIBITION
PROHIBITION
Do not start or stop the
operation by disconnecting
the power supply cord
and so on.
1.Do not use power supply cord extended
or connected in halfway
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.
PROHIBITION
Do not insert objects into the air
inlet or outlet.
Do not channel the air flow directly
at people, especially at infants or
the aged.
PROHIBITION
Do not try to repair or
reconstruct by yourself.
Connect the earth
cable.
earthing
PROHIBITION
CAUTION
Do not use for the purpose of storage of Take fresh air occasionally especially Do not operate the switch with
food, art work, precise equipment,
when gas appliance is running at the wet hand.
breeding, or cultivation.
same time.
PROHIBITION
Do not install the unit near a fireplace
or other heating apparatus.
STRICT
ENFORCEMENT
Check good condition of the
installation stand
PROHIBITION
Do not place animals or plants in
the direct path of the air flow
PROHIBITION
Do not pour water onto the unit
for cleaning
PROHIBITION
PROHIBITION
Do not place any objects on or
climb on the unit.
PROHIBITION
PROHIBITION
61
Do not place flower vase or water
containers on the top of the unit.
PROHIBITION
Domestic Air Conditioner
Exponent
Trouble shooting
Cautions
Before asking for service, check the following
first.
Phenomenon
The system
does not restart
immediately.
Noise is heard
Normal
Performance
inspection
Smells are
generated.
Mist or steam are
blown out.
Do not obstruct or cover the ventilation grille of the air
conditoner.Do not put fingers or any other things into the
inlet/outlet and swing louver.
Do not allow children to play with the air conditioner.In no
case should children be allowed to sit on the outdoor unit.
Cause or check points
When unit is stopped, it won't restart
immediately until 3 minutes have
elapsed to protect the system.
When the electric plug is pulled out
and reinserted, the protection circuit
will work for 3 minutes to protect the
air conditioner.
During unit operation or at stop,
a swishing or gurgling noise may
be heard.At first 2-3 minutes after
unit start, this noise is more noticeable.
(This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking
noise may be heard.This noise is
generated by the casing expanding
or shrinking because of
temperature changes.
Should there be a big noise from
air flow in unit operation, air
filter may be too dirty.
This is because the system
circulates smells from the interior
air such as the smell of furniture,
paint, cigarettes.
Specifications
The refrigerating circuit is leak-proof.
The machine is adaptive in following situation
1.Applicable ambient temperature range:
Indoor
Cooling
Maximum:D.B/W.B 32oC/23oC
Minimum:D.B/W.B 21oC/15oC
Maximum:D.B/W.B 46oC/26oC
18oC
Maximum:D.B
27oC
Minimum: D.B
15oC
Outdoor Minimum: D.B
Indoor
Heating
Outdoor
Maximum:D.B/W.B 24oC/18oC
Minimum:D.B/W.B - 7 oC/-8oC
o
o
Outdoor Maximum:D.B/W.B 24 C/18 C
(INVERTER)
Minimum:D.B
-15oC
2. If the power supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similar qualified person.
3.If the fuse of indoor unit on PC board is broken,please change
it with the type of T. 3.15A/ 250V. If the fuse of outdoor unit is
broken,change it with the type of T.25A/250V
During COOL or DRY operation,
indoor unit may blow out mist.
This is due to the sudden cooling
of indoor air.
4. The wiring method should be in line with the local wiring standard.
5. After installation, the power plug should be easily reached.
In dry mode, fan
speed can’t be
changed.
In DRY mode, when room temperature
becomes lower than temp.
setting+2 oC,unit will run
intermittently at LOW speed
regardless of FAN setting.
6. The waste battery should be disposed properly.
7. The appliance is not intended for use by young children or infirm
persons without supervision.
8. Young children should be supervised to ensure that they do not play
with the appliance.
Is power plug inserted?
Is there a power failure?
Is fuse blownout?
Multiple
check
Poor cooling
9. Please employ the proper power plug, which fit into the power supply
cord.
Is the air filter dirty?
Normally it should be cleaned
every 15 days.
Are there any obstacles before
inlet and outlet?
Is temperature set correctly?
Are there some doors or
windows left open?
Is there any direct sunlight
through the window during the
cooling operation?(Use curtain)
Are there too much heat sources
or too many people in the room
during cooling operation?
10. The power plug and connecting cable must have acquired the local
attestation.
11.In order to protect the units,please turn off the A/C first, and at least
30 seconds later, cutting off the power.
62
Domestic Air Conditioner
Installation
8.Installation
Indoor Unit Installaion
Necessary Tools for Installation
ƽ Driver
ƽ Nipper
ƽ Hacksaw
ƽ Hole core drill
ƽ Spanner(17,19 and 26mm)
ƽ Gas leakage detector or
soap-and-water solution
ƽ Torque wrench
(17mm,22mm,26mm)
ƽ Pipe cutter
ƽ Flaring tool
ƽ Knife
ƽ Measuring tape
ƽ Reamer
Power Source
ƽ Before inserting power into receptacle, check the voltage without
fail.
ƽ The power supply is the same as the corresponding nameplate.
ƽ Install an exclusive branch circuit of the power.
ƽ A receptacle shall be set up in a distance where the power cable
can be reached.Do not extend the cable by cutting it.
Selection of Installation Place
Accessory Parts
ƽ Place, robust not causing vibration, where the body can be
supported sufficiently.
ƽ Place, not affected by heat or steam generated in the vicinity,
where inlet and outlet of the unit are not disturbed.
ƽ Place, possible to drain easily, where piping can be connected with the outdoor unit.
Place,
where cold air can be spread in a room entirely.
ƽ
ƽ Place, nearby a power receptacle, with enough space around.
ƽ Place where the distance of more than lm from televisions,
radios, wireless apparatuses and fluorescent lamps can be
left.
ƽ In the case of fixing the remote controller on a wall, place
where the indoor unit can receive signals when the fluorescent lamps in the room are lightened.
Remote controller (1)
Drain hose (1)
R-03 dry battery (2)
Plastic cap (4)
Ø4X25 Screw (4)
Mounting plate (1)
Air purifying filter(Optional) (1)
Selection of Pipe
FOR 07K 09K 12K
FOR 18K
FOR 24K
Drawing for the installation of indoor units
The models adopt HFC free refrigerant R410A
Attention must be paid to
the rising up of drain hose
more than 15 cm
Arrangement of piping
directions
Rear left
more than
10cm
Rear
right
Left
Right
Below
more than 10cm
The distance between the indoor unit and the floor should be more than 2m.
Please be subject to the actual product purchased,the above picture is just for your reference.
Domestic Air Conditioner
Installation
Indoor Unit Installation
Fitting of the Mounting Plate and Positioning of the wall Hole
When the mounting plate is first fixed
1. Carry out, based on the neighboring pillars or lintels, a proper leveling
for the plate to be fixed against 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
YJHMXH007BARR-FX
YJHMXH009BARR-FX
YJHMXH012BARR-FX
B= Ø 70mm
[ Left・Left-rear piping ]
ƽ In case of left side piping, cut away, with a nipper, the lid for left
piping.
ƽ In case of left-rear piping, bend the pipes according to the piping
direction to the mark of hole for left-rear piping which is marked on
heat insulation materials.
1. Insert the drain hose into the dent of heat insulation materials of
indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor
unit, and pull it out on the front side, then connect them.
3. Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the connection part with heat insulation materials closely,
and make sure fixing with adhesive tape
Indoor/outdoor electric cable
Heat insulation
material
Lid for right
piping
Piping
Pipe supporting
plate
Lid for left piping Drain hose
Lid for under piping pipe
Fix with adhesive tape
30mm
A=145mm
ƽ Indoor/outdoor electric cable and drain hose must be bound with
efrigerant piping by protecting tape.
[ Other direction piping ]
ƽ Cut away, with a nipper, the lid for piping according to the piping
direction and then bend the pipe according to theposition of wall
hole. When bending, be careful not to crash pipes.
ƽ Connect beforehand the indoor/outdoor electric cable, and then
pull out the connected to the heat insulation of connecting part
specially.
35mm
B= 70mm
A=150mm
B= Ø 70mm
ƽ Hang surely the unit body onto the upper
30mm
A=145mm
Fixing the indoor unit body
notches of the mounting plate. Move the body
from side to side to verify its secure fixing.
ƽ In order to fix the body onto the mounting
plate,hold up the body aslant from the
underside and then put it down perpendicularly.
When the mounting plate is fixed side bar and lintel
ƽ Fix to side bar and lintel a mounting bar, Which is separately sold, and
then fasten the plate to the fixed mounting bar.
ƽ Refer to the previous article, “ When the mounting plate is first fixed “,
for the position of wall hole.
mounting plate
Unloading of indoor unit body
ƽWhen you unload the indoor unit,please use your hand to arise
Making a Hole on the Wall and Fitting the Piping Hole Cover
the body to leave agraffe,then lift the bottom of the body outward
slightly and lift the unit aslant until it leaves the mounting plate.
ƽ Make a hole of 70 mm in diameter, slightly descending to outside the wall
ƽ Install piping hole cover and seal it off with putty after installation
Wall hole
Ø70mm
agraffe
Indoor side
(Section of wall hole)
Outdoor side
Thickness of wall
mounting plate
Connecting the indoor/outdoor Electric Cable
G Piping hole pipe
Installation of the Indoor Unit
Removing the wiring cover
ƽ Remove terminal cover at right bottom corner of
Drawing of pipe
indoor unit, then take off wiring cover by removing
its screws.
[ Rear piping ]
ƽ Draw pipes and the drain hose, then fasten them with the adhesive tape
Domestic Air Conditioner
Installation
Correct
When connecting the cable after installing the indoor unit
1. Insert from outside the room cable into left side of the wall
hole, in which the pipe has already existed.
2. Pull out the cable on the front side, and connect the cable
making a loop.
Lean
ƽ
ƽ
Damage of flare
Crack
Partial
Too outside
On Drainage
ƽ Please install the drain hose so as to be downward slope without fail.
ƽ Please don’t do the drainage as shown below.
When connecting the cable before installing the indoor unit
ƽ Insert the cable from the back
ƽ Loosen the screws and insert
Incorrect
side of the unit, then pull it out on the front side.
the cable ends fully into terminal block, then
tighten the screws.
Pull the cable slightly to make sure the cables have been properly inserted and
tightened.
After the cable connection, never fail to fasten the connected cable with the
wiring cover.
Less than
5cm
It becomes The end is imm- It waves. The gap with the
There is the bad
high midway. ersed in water.
ground is too small. smell from a ditch
Indoor unit
ƽ Please pour water in the drain pan of the indoor unit, and confirm that
drainage is carried out surely to outdoor.
ƽ In case that the attached drain hose is in a room, please
apply heat
insulation to it without fail.
To Outdoor unit
Note:
C ode
A nalyze and diagnose
T rouble description
indic ation
Indoor fan m otor
F aulty connector c onnection;
E1
m alfunc tion
F aulty therm istor;
H eat-exc hange
F aulty P C B ;
E2
s ens or failure
F aulty E E P R O M data;
Indoor E E P R O M
F aulty E E P R O M ;
E4
error
F aulty P C B ;
When connecting the cable, confirm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, proper operation can not
be carried out and will cause defect.
Model
Connecting wiring
YJHMXH007BARR-FX
YJHMXH009BARR-FX
YJHMXH012BARR-FX
YJHMXH018BARR-FX
YJHMXH024BARR-FX
4G0.75mm
2
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar qualified person. The type of connecting wire is
H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of
T.3.15A/250VAC (Indoor).
3. The wiring method should be in line with the local wiring standard.
4. After installation, the power plug should be easily reached.
5. A breaker should be incorporated into fixed wiring. The breaker should be
all-pole switch and the distance between its two contacts should be not less
than 3mm.
E7
E 14
Power Source Installation
ƽThe power source must be exclusively used for air conditioner.
ƽ In the case of installing an air conditioner in a moist place, please install
an earth leakage breaker.
ƽ For installation in other places, use a circuit breaker as far as possible.
Cutting and Flaring Work of Piping
ƽ Pipe cutting is carried out with a pipe cutter and burs must be removed.
ƽ After inserting the flare nut, flaring work is carried out.
A
Flare tool for R410A
Conventional flare tool
Clutch-type
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
0~0.5mm
Flare tooling die
1.0~1.5mm
1.Cut pipe
3.Insert the flare nut
On Drainage
C om m unication
fault betw een
indoor and outdoor
units
Indoor unit- outdoor unit s ignal
transm ission error due to w iring
error;
F aulty P C B ;
Indoor fan m otor
m alfunc tion
O peration halt due to breaking
of w ire inside the fan m otor;
O peration halt due to breaking
of the fan m otor lead w ires ;
D etec tion error due to faulty
indoor unit P C B ;
Check for Installation and Test Run
Ƶ Please kindly explain to our customers how to
operate through the instruction manual.
Check Items for Test Run
Put check mark
in boxes
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of indoor and outdoor firmly
inserted to the terminal block?
Is the connecting wiring of indoor and outdoor firmly fixed?
Is drainage securely carried out?
Is the earth line securely connected?
Is the indoor unit securely fixed?
Is power source voltage abided by the code?
Is there any noise?
Is the lamp normally lighting?
Are cooling and heating (when in heat pump) performed normally?
Is the operation of room temperature regulator normal?
1.5~2.0mm
2.Remove burs
4.Flare pipe
Domestic Air Conditioner
Installation
Installation Ma nual of Room Air Conditioner
IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED
EUROPEAN REGULATIONS
CONFORMITY FOR THE MODELS
CE
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
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
WEEE
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.
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
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.
1=
kg
2
2=
kg
1+2=
kg
1
ROHS
The products are fulfilled with the requirements in the
directive 2002/95/EEC of the European parliament and of
council on the Restriction of the use of Certain Hazardous
Substances in Electrical and Electronic Equipment (EU
RoHS Directive)
R410A
F
A
B
C
D
E
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
WARNING:
·
·
·
If the supply cord is damaged, it must be replaced by the manufacturer,its service agent or
similarly qualified persons in order to avoid a hazard.
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible
for their safety.
Children should be supervised to ensure that they do not play with the appliance.
66
Installation
Indoor/Outdoor Unit Installation Drawings
The models adopt HFC free refrigerant R410A.
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.)
Attention must be paid to
the rising up of drain hose
more than 15 cm
Optional parts for piping
Indoor unit A
A Non-adhesive tape
B Adhesive tape
more than10cm
more than 10cm
Indoor unit B
C Saddle (L.S) with screws
Connecting electric cable
D
for indoor and outdoor
E Drain hose
F
F Heating insulating material
G Piping hole cover
C
Arrangement of piping
directions
more than 20cm
Rear left
Rear
right
Left
Fixing of outdoor unit
ƽ Fix the unit to concrete or block
Right
Below
ƽ The marks from A to
G in the figure are the
parts numbers.
ƽ The distance between
the indoor unit and the
floor should be more
than 2m.
D
more than 20cm
ƽ
E
with bolts (10mm) and nuts firmly
and horizontally.
When fitting the unit to wall
surface, roof or rooftop, fix
a supporter surely with nails
or wires in consideration of
earthquake and strong wind.
ƽ If vibration may affect the
more than 60cm
more than 25cm
house, fix the unit by attaching a
vibration-proof mat.
AIR OUTLET
AIR INLET
4
CONNECTING PIPING AND ELECTRICAL WIRING
DRAIN HOSE
Compressor(Inside of Unit)
ƽ
The above indoor and outdoor units’ picture is just for your reference.
Please be subject to the actual product purchased.
67
Installation
WARNING
CAUTION
68
Installation
Safety Precautions
WARNING
Have the unit professionally installed.
Improper installation by an unqualified person may result
in water leak, electric shock, or fire.
Place the unit on a stable, level surface that withstands the
weight of the unit to prevent the unit from tipping over or
falling causing injury as a result.
Only use specified cables for wiring. Securely connect each
cable, and make sure that the cables are not straining the
terminals.
Cables not connected securely and properly may generate
heat and cause fire.
Be sure to carefully follow each step in this handbook when
installing the unit.
Improper installation may result in water leak, electric shock,
smoke or fire.
Have all electrical work performed by a licensed electrician
according to the local regulations and the instructions given
in this manual. Secure a circuit designated exclusively to
the unit.
Improper installation or a lack of circuit capacity may cause
the unit to malfunction or present a risk of electric shock,
smoke,and fire.
Take necessary safety measures against typhoons and
earthquakes to prevent the unit from falling over.
Securely attach the terminal cover(panel) on the unit.
If installed improperly, dust and/or water may enter the unit
and present a risk of electric shock, smoke or fire.
Do not make any changes or modifications to the unit. In
case of problems, consult the dealer.
If repairs are not made properly, the unit may leak water
and present a risk of electric shock, or it may produce smoke
or cause fire.
Only use refrigerant R410A as indicated on the unit when
installing or relocating the unit.
The use of any other refrigerant or an introduction of air into
the unit circuit may cause the unit to run an abnormal cycle
and abnormal cycle and cause the unit to burst.
WARNING
Do not touch the fins on the heat exchanger with bare hands,
for they are sharp and dangerous.
In the event of a refrigerant gas leak, provide adequate
ventilation to the room.
If leaked refrigerant gas is exposed to a heat source, noxious
gases may form.
With All-Fresh type air conditioners, outdoor air may be
directly blown into the room upon thermo off. Take this into
consideration when installing the unit.
Direct exposure to outdoor air may present a health hazard,
and it may also cause food items to deteriorate.
Do not try to defeat the safety features of the devices, and
do not change the settings.
Defeating the safety features on the unit such as the pressure
switch and temperature switch or using parts other than the
dealer or specialist may result in fire or explosion.
When installing the unit in a small room, safeguard against
hypoxia that results from leaked refrigerant reaching the
threshold level.
Consult the dealer for necessary measures to take.
When relocating the air conditioner, consult the dealer or
a specialist.
Improper installation may result in water leak, electric shock,
or fire.
After completing the service work, check for a refrigerant
gas leak.
If leaked gas refrigerant is exposed to a heat source such
as fan heater,stove,and electric grill, noxious gases may
form.
Only use specified parts.
Have the unit professionally installed. Improper installation
may cause water leak, electric shock,smoke, or fire.
Installation
Safety Precautions
Precautions for Handling Units for Use with R410A
Caution
Do not use the existing refrigerant piping
Use a vacuum pump with a reverse-flow check valve.
If other types of valves are used, the vacuum pump oil will
The old refrigerant and refrigerator oil in the existing piping
flow back into the refrigerant cycle and cause the refrigerator
contain a large amount of chlorine, which will cause the
oil to deteriorate.
refrigerator oil in the new unit to deteriorate.
R410A is a high-pressure refrigerant, and the use of the
Do not use the following tools that have been used with the
existing piping may result in bursting.
conventional refrigerants. Prepare tools that are for exclusive
use with R410A.
(Gauge manifold, charging hose, gas leak detector,
reverse-flow check valve, refrigerant charge base,vacuum
gauge, and refrigerant recovery equipment.)
If refrigerant and/or refrigerant oil left on these tools are
Keep the inner and outer surfaces of the pipes clean and
mixed in with R410, or if water is mixed with R410A, it will
free of contaminants such as sulfur, oxides, dust/dirt shaving
cause the refrigerant to deteriorate.
particles,oils,and moisture.
Since R410A does not contain chlorine, gas-leak detectors
Contaminants inside the refrigerant piping will cause the
for conventional refrigerators will not work.
refrigerant oil to deteriorate.
Caution
Store the piping to be used during installation indoors, and Do not use a charging cylinder.
keep both ends of the piping sealed until immediately before
The use of charging cylinder will change the composition
brazing.(keep elbows and other joints wrapped in plastic.)
of the refrigerant and lead to power loss.
If dust, dirt, or water enters the refrigerant cycle, it may
cause the oil in the unit to deteriorate or may cause the
compressor to malfunction.
Exercise special care when handling the tools.
An introduction of foreign objects such as dust, dirt or
Use a small amount of ester oil, ether oil, or alkylbenzene
water into the refrigerant cycle will cause the refrigerating
to coat flares and flange connections.
machine oil to deteriorate.
A large amount of mineral oil will cause the refrigerating
machine oil to deteriorate.
Use liquid refrigerant to charge the system.
Charge the unit with gas refrigerant will cause the refrigerant Only use R410A refrigerant.
in the cylinder to change its composition and will lead to
The use of refrigerants containing chlorine(i.e. R22) will
a drop in performance
cause the refrigerant to deteriorate.
Before Installing the Unit
Caution
Do not install the unit in a place where there is a possibility When installing the unit in a hospital, take necessary measures
of flammable gas leak.
against noise.
Leaked gas accumulated around the unit may start a fire.
High-frequency medical equipment may interfere with the
normal operation of the air conditioning unit or the air
Do not use the unit to preserve food, animals, plants, artifacts,
conditioning unit may interfere with the normal operation
or for other special purposes.
of the medical equipment
The unit is not designed to provide adepuate conditions
to preserve the quality of these items.
Do not use the unit in an unusual environment
The use of the unit in the presence of a large amount of
oil, steam, acid, alkaline solvents or special types of sprays
Do not place the unit on or over things that may not get wet.
may lead to a remarkable drop in performance and/or
When humidity level exceeds 80% or when the drainage
malfunction and presents a risk of electric shock, smoke,
system is clogged, indoor units may drip water.
or fire.
Installation of a centralized drainage system for the outdoor
The presence of organic solvents, corroded gas (such as
unit may also need to be considered to prevent water drips
ammonia,sulfur compounds,and acid may cause gas or
from the outdoor units.
water leak.)
70
Installation
Safety Precautions
Before Installing (Relocating) the Unit or Performing Electric Work
Caution
Ground the unit.
Do not connect the grounding on the unit to gas pipes,water
pipes, lightning rods, or the grounding terminals of
telephones. Improper grounding presents a risk of electric
shock, smoke, fire, or the noise caused by improper
grounding may cause the unit to malfunction.
Do not spray water on the air conditioners or immerse the
air conditioners in water.
Water on the unit presents a risk of electric shock.
Periodically check the platform on which is placed for damage
to prevent the unit from falling.
If the unit is left on a damaged plarform, it may topple over,
causing injury.
Make sure the wires are not subject to tension.
If the wires are too taut, they may break or generate heat
When installing draining pipes, follow the instructions in the
and/or smoke and cause fire.
manual, and make sure that they properly drain water so as
Install a breaker for current leakage at the power source
to avoid dew condensation.
to avoid the risk of electric shock.
If not installed properly, they may cause water leaks and
Without a breaker for current leakage, there is a risk of
damage the furnishings.
electric shock, smoke or fire.
Properly dispose of the packing materials.
Use breakers and fuses (electrical current breaker, remote
Things such as nails may be included in the package.
switch<switch+Type-B fuse>,molded case circuit breaker)
Dispose of them properly to prevent injury.
with a proper current capacity.
Plastic bags present a choking hazard to children. Tear
up the plastic bags before disposing of them to prevent
The use of large-capacity fuses, steel wire, or copper wire
accidents.
may damage the unit or cause smoke or fire.
Before the Test Run
Caution
Do not operate switches with wet hands to avoid electric.
Do not touch the refrigerant pipes with bare hands during
and immediately after operation.
Depending on the state of the refrigerant in the system,
certain parts of the unit such as the pipes and compressor
may become very cold or hot and may subject the person
to frost bites or burning.
Do not operated the unit without panels and safety guards
in their proper places.
They are there to keep the users from injury from
accidentally touching rotating, high-tempreture or highvoltage parts.
Do not turn off the power immediately after stopping the unit.
Allow for at least five minutes before turning off the unit,
otherwise the unit may leak water or experience other
problems.
Do not operate the unit without air filters.
Dust particles in the air may clog the system and cause
malfunction.
71
Installation
Read Before Installation
Items to Be Checked
(1). Verify the type of refrigerant used by the unit to be serviced. Refrigerant Type: R410A
(2). Check the symptom exhibited by the unit to be serviced. Look in this service handbook for symptoms relating to the
refrigerant cycle.
(3). Be sure to carefully read the safety precautions at the beginning of this document.
(4). If there is a gas leak or if the remaining refrigerant is exposed to an open flame, a noxious gas hydrofluoric acid may
form. Keep workplace well ventilated.
CAUTION
Install new pipes immediately after removing old ones to keep moisture out of the refrigerant circuit.
Chloride in some types of refrigerants such as R22 will cause the refrigerating machine oil to deteriorate.
Necessary Tools and Materials
Prepare the following tools and materials necessary for installing and servicing the unit.
Necessary tools for use with R410A(Adaptability of tools that are for use with R22 and R407C).
1. To be used exclusively with R410A ( Not to be used if used with R22 or R407C )
Tools/Materials
Use
Notes
Gauge Manifold
Evacuating,refrigerant charging
5.09MPa on the High-pressure side.
Charging Hose
Evacuating, refrigerant charging
Hose diameter larger than the concentional ones.
Refrigerant Recovery Equipment
Refrigerant recovery
Refrigerant Cylinder
Refrigerant charging
Write down the refrigerant type. Pink in color at the top of the cylinder.
Refrigerant Cylinder Charging Port
Refrigerant charging
Hose diameter larger than the conventional ones.
Flare Nut
Connecting the unit to piping
Use Type-2 Flare nuts.
2. Tools and materials that may be used with R410 with some restrictions
Tools/Materials
Use
Notes
Gas leak detector
Detection of gas leaks
The ones for HFC type refrigerant may be used.
Vacuum Pump
Vacuum drying
May be used if a reverse flow check adaptor is attached.
Flare Tool
Flare machining of piping
Chages have been made in the flare machining dimension.Refer to the next page.
Refrigerant Recovery Equipment
Recovery of refrigerant
May be used if designed for use with R410A.
3. Tools and materials that are used with R22 or R407C that can also be used with R410A
Tools/Materials
Use
Vacuum Pump with a Check Valve
Vacuum drying
Bender
Bending pipes
Torque Wrench
Tightening flare nuts
Pipe Cutter
Cutting pipes
Welder and Nitrogen Cylinder
Welding pipes
Refrigerant Charging Meter
Refrigerant charging
Vacuum Gauze
Checking vacuum degree
Notes
Only
12.70 (1/2'') and
15.88(5/8'') have a larger flare machining dimension.
4. Tool and materials that must not used with R410A
Tools/Materials
Charging Cylinder
Use
Notes
Refrigerant Charging
Must not be used with R410-type units.
Tools for R410A must be handled with special care, and keep moisture and dust from entering the cycle.
72
Installation
Read Before Installation
Piping Materials
Types of Copper Pipes (Reference)
Maximum Operation Pressure
Applicable Refrigerants
3.4MPa
R22, R407C
4.15MPa
R410A
Use pipes that meet the local standards.
Piping Materials/Radial Thickness
Use pipes made of phosphorus deoxidized copper.
Since the operation pressure of the units that use R410A is higher than that of the units for use with R22, use pipes with
at least the radial thickness specified in the chart below. (Pipes with a radial thickness of 0.7mm or less may not be used.)
Size(mm)
Size(inch)
6.35
1/4''
Radial Thickness(mm)
0.8t
9.52
3/8''
0.8t
12.7
1/2''
0.8t
15.88
5/8''
1.0t
19.05
3/4''
1.0t
Type
Type-O pipes
Type-1/2H or Hpipes
Although it was possible to use type-O for pipes with a size of up to 19.05(3/4") with conventional refrigerants, use type1/2H pipes for units that use R410A.(Type-O pipes may be used if the pipe size is 19.05 and the radial thickness is 1.2t.)
The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local standards.
Flare Machining (type-O and OL only)
The flare machining dimensions for units that use R410A is larger than those for units that use R22 in order to increase
air tightness.
Flare Machining Dimension(mm)
Size
Dimension A
R410A
R22
6.35
1/4"
9.1
9.0
9.52
3/8"
13.2
13.0
12.7
1/2"
16.6
16.2
15.88
5/8"
19.7
19.4
19.05
3/4"
24.0
23.3
Dimension A
External dimension of pipes
If a clutch type flare tool is used to machine flares on units that use R410A, make the protruding part of the pipe between
1.0 and 1.5mm. Copper pipe gauge for adjusting the length of pipe protrusion is useful.
Flare Nut
Type-2 flare nuts instead of type-1 nuts are used to increase the strength. The size of some of the flare nuts have also
been changed.
Flare nut dimension(mm)
External dimension of pipes
Size
Dimension B
R410A(Type2)
R22(Type1)
17.0
17.0
3/8"
22.0
22.0
1/2"
26.0
24.0
15.88
5/8"
29.0
27.0
19.05
3/4"
36.0
36.0
6.35
1/4"
9.52
12.7
Dimension B
The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local standards.
73
Installation
74
Installation
NO
Air outlet
Wind direction
Cushion rubber
4.Installation dimension(Unit:mm)
Model
W
D
H
L1
L2
L3
YJU2YH014BARRA-X
780
270
540
566
106.5
317
YJU2YH018BARRA-X
810
288
688
583
113.5
319.5
Installation
1.
YJU2YH014BARRA-X
YJU2YH018BARRA-X
2. Connection of pipes
ƽ To bend a pipe, give the roundness as large as possible not to crush the pipe ,
ƽ
ƽ
and the bending radius should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
The connection pipe is specialized for R410A.
Half union
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Flare nut
Pipe Diameter(ǿ)
Fastening torque
Liquid side6.35mm(1/4")
18N.m
Liquid/Gas side9.52mm(3/8")
42 N.m
Torque wrench
Gas side 12.7mm(1/2")
55N.m
Gas side 15.88mm(5/8")
60 N.m
Be careful that matters, such as wastes of sands,water,, etc. shall not enter the pipe.
CAUTION:
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe. The standard pipe
length of each indoor unit is 5m. If total pipe length is over 20m, the function of the unit will be
affected, charge more refrigerant is needed, according to 20 g/m. But the charge of refrigerant
must be conducted by professional air conditioner engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge
additional refrigerant.
CAUTION
Indoor unit
Indoor unit
B1
B1
B1
Indoor unit
A1 B2
Indoor unit
Outdoor unit
A1
A2
A3
A2
Indoor unit
B2
Outdoor unit
Indoor unit
Outdoor unit
B2
Indoor unit
Outdoor unit
B
Oil trap
Indoor unit
Max.Elevation: A1 max =15m A2 max =15m
A3 max =15m
In case the elevation B is more than 5m,
oil trap shoud be installed every 5~7m
Max. Length: B1 max =20m B2 max =20m
(B1+B2) max =30m
In case the pipe total length (B1+B2) is more than
20m, the refrigerant should be charged, according
to 20 g/m.
76
Installation
Pressurize for over 3 minutes at 4.2MPa
After above
77
Installation
2-way valve
3-way valve
2-way valve
3-way valve
2-way valve
3-way valve
2-way valve
3-way valve
ƽ
ƽ Each indoor unit musts to be vacuumed , according to the above steps.
ƽ If the refrigerant of the air conditioner leaks, it is necessary to discharge all the refrigerant. Vacuumize first, then
charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.
ƽ Please do not let other cooling medium, except specified one (R410A), or air enter into the cooling circulation system.
Otherwise, there will be abnormal high pressure in the system to make it crack and lead to personal injuries.
78
Installation
YJU2YH014BARRA-X
YJU2YH018BARRA-X
T 25A/250V.
The type of connecting wire is H07RN-F.
14K
18K
Outdoor unit A
To Indoor unit A
Outdoor unit A
To Indoor unit A
Model
Outdoor unit B
1(N) 2(L) 3(C)
To Indoor unit B
YJU2YH018BARRA-X
Outdoor unit B
Connecting wiring
To Indoor unit B
Power cable
2(N)
^
POWER
1(L)
1(N) 2(L) 3(C)
^
POWER
YJU2YH014BARRA-X
DOUBLE
4G0.75mm
DOUBLE
3G2.5mm2
2
Installation
Outdoor Unit
1
2
4
15
5
6
8
110
9
10
11
When the The wiring of compressor is wrong or
the connection is poor
Suction temperature sensor failure
12
13
15
16
Check if there is leakage in the unit.
Lack of refrigerant
m
17
18
19
25
25
25
15
Removal of procedure
9
81
Domestic air conditioner
Removal of procedure
Please embed the air
filters into the unit along
the grooves as installation.
Pl ease embed the two
hooks on air filter
com pletely into the unit
during installat ion .
82
Domestic air conditioner
Removal of procedure
Remocal of 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.
Please close the panels
before start the removal
procedure of front grille.
one side to another to
release each axis.
83
Domestic air conditioner
Removal of procedure
3
HOOKS
three
84
Domestic air conditioner
Removal of procedure
horizontal flap
flap
flap
flap
flap
85
Domestic air conditioner
Removal of procedure
Remove the swing
Moter
2.
Remove the vertical
blades
1
Every blade go round
and round,then move
it
86
Domestic air conditioner
Removal of procedure
87
Domestic air conditioner
Removal of procedure
3
88
Domestic air conditioner
Removal of procedure
89
Domestic air conditioner
Removal of procedure
90
Domestic air conditioner
Removal of procedure
Outdoor Unit
Removal of Outdoor Panel
91
Domestic air conditioner
Removal of procedure
1
Loosen the top
panel screws
2
Lift the top
panel
92
Domestic air conditioner
Removal of procedure
Loosen the csrews
and pull the panel
93
Domestic air conditione
Removal of procedure
2 Pull the wind circle
Remove the inlet
grill
Push the hooks first
94
Domestic air conditioner
Removal of procedure
95
Domestic air conditioner
Removal of procedure
96
Domestic air conditioner
Removal of procedure
2
Loosen the fixing screws
and remove the motor
97
Domestic air conditioner
Removal of procedure
98
Domestic air conditioner
Removal of procedure
Loosen the screw
and remove the
reactor
99
Domestic air conditioner
Removal of procedure
Loosen the marked
screws and pull
out the backgurd
100
Domestic air conditioner
Removal of procedure
2
3
Loosen the marked
screws and remove
the stop valves
Loosen the marked
screws and remove
the stop valves
bracket
101
Domestic air conditioner
Wring diagram
10. Wiring Diagrams
INDOOR UNIT
㒓䏃೒
WUDQVIRUPHU
5
:
LRQJHQHUDWRU
IDQPRWRU
)8
6(
$PELHQWWHPSVHQVRU
3LSLQJWHPSVHQVRU
HPHUJHQF\VZLWFK
louver motor
Romm Card
VLQJDO
UHFHLYHU
ERDUG
72287'22581,7
%%ODFN
55HG
%5%URZQ
%/EOXH
::KLWH
<*<HOORZ*UHHQ
102
Domestic Air Conditioner
Wring diagram
.2 Circuit Diagrams
R3
2K
1 2
1 2
TSVC-1
JTP1288LA
SW1
ᑨᗹᓔ݇
1
1
2
Comment: 10K
+5V
R4
R1
Comment:
C5 1K
Comment: 0.1uF
CN48
2 SW1'
SWITCH
RST
㞾Ẕ/㓽ᯊ
R5
1K
C16
0.1uF
CHECK/S_TIME
5v
5
+5V
10K
10K
10K
10K
4
3
2
1
IC2
C11
0.1uF
A0
VCC
A1
TEST
A2
SCL
VSS SDA
IC1
EEPROM
1
2
3
4
AT24C02B
5 R103
6 R102
7
8
R5F212A7SNFA
JP2
1
2
TJC8-02
20K
10K
+5V
8
7
6
5
2K
2K
R30
10K
R69
2K
1
2
TJC8-02
+5V
R29
10K
R33
C2
560Ω
C20
SCL
SDA
10K
10K
10K
10K
10K
10K
0.1uF
BM
25/35
A/B
0.1uF 0.1uF 0.1uF
C28
SCL
SDA
C18
+5V
A/B
25/35
BM
R42
R49
R52
R32
R60
R65
ROOM
PIPE
RCK
SER
SRCK
1K
IRQ
IRQ
DIGH
DIGL
DIG_MODE
COMM_TX
COMM_RX
R40
CON6
㑶1
10K
10K
REMOTE_RX
REMOTE_TX
IR
FK
R75
R41
RST
MODE
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R7
R104
+5V
+5V
೼㒓⚻‫ ݭ‬JP3
P3_3/SSI
P3_5/SCL/SSCK
P3_4/SDA/SCS
P3_7/SSO
MODE
VCC/AVCC
P4_3/XCIN
VREF
P4_4/XCOUT
P0_7/AN0/DA1
RESET
VSS/AVSS
P4-7/XOUT
P0_6/AN1/DA0
VSS/AVSS
P0_5/AN2/CLK1
P4_6/XIN
P6_1
VCC/AVCC
P6_2
P5_4/TRCIOD
P0_4/AN3
P5_3/TRCIOC
P0_3/AN4
P5_2/TRCIOB
P0_2/AN5
P5_1/TRCIOA/TRCTRG
P0_1/AN6
P5_0/TRCCLK
P0_0/AN7
P2_7/TRDIOD1
P1_0/KI0/AN8
P2_6/TRDIOC1
P1_1/KI1/AN9
P2_5/TRDIOB1
P1_2/KI2/AN10
P2_4/TRDIOA1
P1_3/KI3/AN11
P2_3/TRDIOD0
P3_2/INT2
P2_2/TRDIOC0
P3_6/INT1
P2_1/TRDIOB0
P3_0/TRAO
P2_0/TRDIOA0/TRDCLK
P3_1/TRBO
P1_7/TRAIO/INT1
P6_3/TXD2
P1_6/CLK0
P6_4/RXD2
P1-5/RXD0(TRAIO)/INT1P6_5/(CLK1)/CLK2
P1_4/TXD0
P6_7/INT3/RXD1
P8_6
P6_6/INT2/TXD1
P8_5/TRFO12
P4_5/INT0
P8_4/TRFO11
P6_0/TREO
P8_3/TRFO10/TRF1
P8_0/TRFO00
P8_2/TRFO02
P8_1/TRFO01
SW2
TJC8-02
2
1
R2
10K
JP1
+5V
2))ծࢗ 21ॕࠄ
‫ݯ‬໸ ‫ݯ‬໸
$৲
%৲
‫܊‬దညຕ ူ
3
4
E2
100uF-16V-105ć
R77
R78
R45
R44
R89
10K
10K
10K
2
1
B2B-XH-A-R-㑶㡆-ゟᓣ
10K
R88
10K
100Ω
100Ω
10K
R96
R8
+5V
2SA1037AK
P1
R11
10K
10K
R54
R85
+5V
R63
REMOTE_TX
+5V
C24
10nF
R97
R98
R37
1
2
3
4
5
6
7
8
9
10
1 IR
2 RCK
3 SER
4 SRCK
5 GG
6 GND
7 5V
8 DIGH
9 DIGL
10 MODE
100Ω
100Ω
100Ω
/560Ω
+5V
100Ω /560Ω
100Ω /560Ω
100Ω /560Ω
1K
R24
1K
1K
1
2
3
4
5
6
7
8
FK
C27
0.1uF
R92
2K
10K
R28
4.7K±1%
+5V
ᰒ⼎ᵓ0010402241
COM3
COM2
+5V
GND
SER
RCK
SRCK
IR
乘⬭
CN32'' 乘⬭
GND
IR
RUN
TIM
POW
+5V
O3
7
6
5
4
3
2
1
CN32
1
E7
2
3
100uF-16V-105ć 4
5
6
7
8
+5V
R99
4
3
2
1
CN1
1
2
CN20
B2B-XH-A-㓓㡆-ゟᓣ
R100
᠓व
220Ω
1
2
3
4
5
+12V
BUZZ1
CN11
R82
D
C
B
A
12V
ऩᇐᵓℹ䖯⬉ᴎ
+12V
CN11'
C12
0.1uF
R50
2K
2K
2K
ᰒ⼎ᵓ0011800184/0033
4.7uF-50V
E3
+5V
4.7uF-50V
E5
R95
10K
R101
10K
+12V
PKM13EPY-4002
㳖号఼
⍋ᇨ⾥ᡔ᳝䰤݀ৌ
䆒䅵 ᅝ⋾‫ ܝ‬ൟো +60+5$&5'%
ᅵḌ 㨷䞥ⲯ ϧ⫼ো
ᡍ‫ ޚ‬㣗㑾䴦 ⠜ᴀো% ㄀义݅义
16
15
14
13
12
11
10
9
N8
2SC2412K
B1
B2
B3
B4
B5
B6
B7
+12
C15
0.1uF
D4
RLS4148
+12V
ULN2003A
A1
A2
A3
A4
A5
A6
A7
GND
IC8
4.7K±1%
R25
C7
10nF
1K
1K
1K
1K
1K
1K
892N-1AC-C
R27
⊼˖R16,R17,R18,R21ḍ᥂ᰒ⼎ᵓ䖯㸠䇗ᭈ
R94
CN32' ᰒ⼎ᵓ0011800161
R31
C19
1nF
R18
R17
R21
DIG_MODE R53
DIGL
R6
DIGH
R16
SER
RCK
SRCK
IR
ROOM
PIPE
C3
10nF
+5V
K2
R70
R72
R76
R79
R80
R81
Ф3ˉ㑶㡆ˉ㑶㡆ˉᬷ‫ˉܝ‬催҂
LED1
USTEP_D
USTEP_C
USTEP_B
USTEP_A
BUZZ
FLZ
䋳⾏ᄤ
220V_L
⬉⑤N
Domestic Air Conditioner
103
R10
10K
10K
C13
N1
10nF
2SC2412K
CN34
㔥㒰䗮䆃
+5V
GND
TX
RX
CON8
ⱑ1
PIPE ROOM
C1
0.1uF
10K
R38
R83
10K
R56
4.7K
4
3
2
1
5267-04A
NET_TX
NET_RX
5
4
3
2
1
A
B
C
D
12V
2K
R23
10K
R35
10K
HTVSB7.0CA-100
C6
TVS1
. 1
R86
10K
0.1uF
໡ԡ⬉䏃
乘⬭
+5V
2
MODE 3
⊼˖R85,854.R63,R86Ўᰒ⼎ᵓ䗝ᢽ⬉䰏
+5V
10K 4
R71
R74
10K 5
RST
6
FCR8.0MC5(ϝ㛮)
R62
7
XT1
8
CN27
R9
51K
9
1M
3
R58 1K
PG_BACK
10
2
BUZZ11
C21
C23
1
USTEP_A
12
Comment: 1nF
Comment: 10nF(⫋⠛)
B3B-EH-A-ॳ㡆-ゟᓣ
13
USTEP_B
R64
USTEP_C
14
PG_OUT
15
USTEP_D
4.7K
N3
R67
10K 16
R59
N
10K 17
2SC2412K
R48
⬉⑤N
R47
10K 18
10K
C45
R46
220V_L
10K 19
1.2uF-450V
1
220V-L
+12V
FLZ
20
IC7
2
R61
R57 C10
CHECK/S_TIME
8
2
21
3
8
2
PG_OUT
22
47Ω-1W
680Ω
22nF-275VAC 6
CN26
3
R55
10K 23
6
3
L1
‫ݙ‬亢ᴎ
PG_BACK
24
R3BMF51
25
R51
10K
LHB1308-171(171uH-0.8A)
NET_RX
26
NET_TX
27
+12V
SWITCH
28
29
30
R73
R34 1K
31
REMOTE_RX
+5V
32
䖰⿟䗮䆃
2
1
CN36
R43
27Ω
10K
N2
2SC2412K
R66
1
2
4
3
亢ᴎড作
Wring diagram
1
CON1
L
L
N
CN30
1
2
3
&1
໪᥹বय़఼
1
2
.
5
RTB-1.5-2P
0.1uF-275VAC
CX1
RV1
TVR14561*
220V_L
FUSE1
T3.15A/250VAC
⬉⑤N
~220VAC/50Hz
N
COMM_TX
IRQ
IRQ
+5V
3
4
IN
2
1
C4
0.1uF
E
C
A
R39
10K
OUT
+5V
C17
0.1uF
R12
100K-1/4W
E4
100uF-50V-105ć
R26
CY3
2.2nF-250VAC
D12
2K-2W
R22
2K-1/4W
0.1uF-50V
C8
470uF-16V-105ć
E6
IC6
L7805CV(1.5A)
HS1
C14 R84
1nF 4.7K
R68
+12V
R36
D5
E1
A
C
K
TLP421/PS2561
E
TLP851/PC851
IC9
K
IC4
2200uF-35V-105ć
1N4007
1K
2
1
10K N4
2SC2412K
1N4007
C25
1nF
D6
1N4007
1N4007
D8
1N4007
D7
D9
+5V
4
3
R19
10K
R13
330Ω
N5
SS8050LT1H
R20
1K
1N4007
D11
1N4007
R14
47K-3W
R15
47K-3W
ZD1
1N4746A(18V-1W)
COMM
220V_L
⬉⑤N
1
&21
Domestic Air Conditioner
104
1
CON2
COMM_TX
5
COMM_RX
.
COMM_RX
C9
1nF
㞾⬅㒘ড়ϔᢪϔᅸ‫ݙ‬໪䗮䆃
GND
220V _L
Wring diagram
Outdoor unit
DON'T TOUCH CAPACITOR,
EVEN AFTER PLUG-OFF ( DANGER
OF ELECTRIC SHOCK)
THE CAPACITOR RETAINS HIGH
VOLTAGE EVEN AFTER THE
PLUG-OFF.FOR YOUR SAFETY,BE SURE TO
WAIT AT LEAST 5 MINUTES.AFTER PLUG
OFF AND USE A TESTER TO CONFIRM THE
VOLTAGE BETWEEN CONNECTOR
AND
(ON MAIN PCB BOARD) IS LESS
THAN DC 10V BEFORE START SERVICING
OR LED2 EXTINGUISHED.
Remarks
1.the dotted parts are optional for
different unit.
2.The components of main pcb board is
fixed facing to the compressor .
Domestic Air Conditioner
105
Wring diagram
L1
8MH/20A
J1
K6
CY6
AC-L
AC-N
472/250V/275V
1K
PTC
ERROR
104/50V
1
2
3
4
5
6
7
8
9
10
11
12
J47 13
14
15
16
1K
R66
R36 2K
+5V
LED1
10K
IC15
1
IC14 T600D
D11
RLS4148
CN35
J17
R62 560
J18 J54 J46
J42
VO
R35
10K
IC6
J45 J55 J21 R77
5.1K/1%
4
3
2
1
AT24C04
SDA
SCL
GND
VCC
GND
GND
GND
GND
1
1
5
4
3
2
1
CN43
+5V
R29
10K
R87
10K
R30
1K
CN24
5V
3
COM
2
GND
1
J60
PC817A
4
R85
R84 1K
1K
R81 C31
2.2K103/50V
E11
47U/25V
10V/0.5W
ZD2
3
PC817A
1
3
R82 1K
R8
330/1W
ZD3
5.1V/0.5W
2
R83 330
1
1
CN41 CN40 CN42
2
IC16
C22
104/50V
C10
102/50V
J20
R80 1K
R79
C18
104/50V
R28
5.1K/1%
P1
2SA1037AK
330
5
6
7
R60 8
10K
10K
VCC
XT1 4M
R61
R91
0
+5V
4
3
2
1
GND
1K
R59 10K /1%
C20 102/50V
1
2
CN34
+5V
4
R58 10K /1%
C19 102/50V
R89
CN4510K
SW TEST
CN33
C16
GND
104/50V
1
5V
2
+5V
RST J29
3
R37
MODE
4
10K
J28
FLASH
9
8
7
6
5
4
3
2
1
3
2
1
1
2
R78
E12
+5V 104/50V 4.7U/16V
C13
C12
104/50V
1
2
3
4
5
CN44
TEST/SS
J53
1K
R88
IC7
ULN2003
C17
104/50V
C11
102/50V
1K
R64
+5V
CN15
6
5
A1
4
B1
3
C1
2
D1
1
+12V
1
16
R56
1K
2
15
R55
1K
3
14
R54
4
13
1K
R53
1K
5
12
R52
6
11
1K
R51
7
10
1K
GND12V
+12V
32
J11 J14
31
30
+12V
29
28
27 J61
26
25
24
23
22
21
20
19
18
17
NC
NC
NC
NC
NC
TXD0
RXD0
NC
HEAT-EN
COOL-EN
TEST-EN
NC
NC
NC
A2
B2
1
16
2
15
3
14
4
13
5
12
6
11
7
10
GND12V
4052- B
NC
NC
PC
TXD2
NC
4052- A
RXD1
TXD1
/
VREF
VCC
C29
+5V
C26 C25 C24
R68
4.7U/16V
E13
IC17
R5F212A8SNFA
VSS/AVSS
MODE
C30
4052-A
CG
HW
CS
XG
TC
NC
NC
104/50V104/50V104/50V
104/50V
4.7U/16V
E14
C28 C27
104/50V
E15
4.7U/16V
CN16
+12V
1
C23
104/50V
R71
C
C
2U/450V
C1
K1
+12V
1K
1K
1K
R70 1K
H
6
5
A2
4
B2
3
C2
2
D2
1
IC8
ULN2003
J37 R50
J36 R44
J35 R45
MC14052
/
4052- B
VSS
VSS
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
D2
C2
1K
E16
4.7U/16V
E17
4.7U/16V
+5V
B1
A1
RESET
XOUT
VSS/AVSS
XI N
VCC/AVCC
SDA
SCL
J13
R75
CN17
CX8
104/275V
CN22
310V
1
2
0V
3
15V
4
5
6
N1
8050
C21
104/50V
AC-L
AC-N
D1
R15
47
1
CY11
472/1KV
3
D5
IN4937\ER106
ZD1
IN5948B
5.1K/1%
1
10K
2
R92 0
3
J8 4
R16
104/50V 1K/0.5W
FB
NC
CS
VCC
3
Vout
E8
100U/16V
C9
104/50V
L3
20UH/1A
R23
47
E5
470U/25V
E6
100U/16V
CX7
CN37
220
220
CY12
1
105/275VAC
R11 47
C2
102/100V
6
4
5
5
15
1
2
3
E4
470U/25V
C6
104/50V
4
C14
102/50V
R38
+5V
1K
R39
2K
R40
1K
TXD2
IC12
4
IC2
PC817A
1
2
1 J64
IC11
2
R26
1K
R25
1K
C5
104/50V
1
IC3
TL431C
R5
1.8K
CN28
CN4
CY8
222/250V
+5V
4
D9
IN4007
3
2K
R43
IC10
4
1K
R42
1K
TXD1
3
CN5
CN36
2K/2W
COMB
2
1 J65
IC9
2
N
E2
CN26
820U/400V
N
E1
CN25
820U/400V
N
3
1
P
1
2
3
4
5
LED2
R17
220K/2W
POWER
1
R6
1.8K
CN46
CY10
222/250V
4
1
1
R3
COMA
TLP421/PS2561
1
CN30
820U/400V
1
CN27
1
CY7
222/250V
N
C15
102/50V
R41
E3
1
P
1
TLP851/PC851
RXD1
N
2
TLP421/PS2561
1
CN32
105/275VAC
1
3
3
CX6
1
P
CN29
R27
5.1K/1%
IRFUC20
2/1W
CN31
R12
330/1W
E9
47U/25V
M1
CN23
+15V
D6
MUR115\ER106
P
RXD2
CN38
1
222/250VAC
CN39
7
NCP1200P100
R20
20K/1%
+5V
L7805CV
8
GND DRV
R22
1K
R21
C4
103/50V
R9
7
HV
Vin
+5VD
IC1
ADJ
IC4
C8
D7
6 MBR1100
R19
R18
+12V
1
R14
CX5
104/275V
C3
102/100V
D8
10 MBR3100\ER302
E7
470U/25V
9
R13
E10
47U/450V
E22034
T1
R24 5.1K/1%
NTC1
SCK-4R72
GND
IN4007 IN4007 IN4007 IN4007
2
D2
C7
104/50V
D3
1
D4
R10
100K/2W
3
5V
2
TC
1
IC5
J63
1K
+5V
J9 J10 J16 J38 J41 J44 J56
J48
Y0 VDD
Y2
X2
Y
X1
Y3
X
Y1
X0
INH X3
VEE
A
VSS
B
J62
47K /1%
104/50V
CN18
5V
2
CS
1
E18
4.7U/16V
E19
4.7U/16V
R67
R69
20K /1% 20K /1%
R72
20K /1% 20K /1%
R65R63
CN19
5V
3
2
HW
1
R76
20K/1%
R74
L
0
48
47
46
45
44
43
42
41
40
39
38
37
36 J51
35 J52
34
33
J49
J39
D1
C1
R93
0
R73
20K/1%
CN14 CN13
COM
J3
K2
FUCTION TEST
R90
MC14052
+5V
CN21
XG-A
4
5V
3
5V
2
CG-A
1
COM
K3
J22
J23
J25
J24
Y0 VDD
Y2
X2
Y
X1
Y3
X
Y1
X0
INH X3
VEE
A
VSS
B
J66
C
J12 J15 J27 J30 J40 J43 J57 J59
PE
J31
J32
J34
J33
+5V
L
12V-5A-892H(N)-1AC-C 12V-5A-892H(N)-1AC-C
12V-5A-892-1CC-C 12V-5A-892-1CC-C
12V-25A-891P-1A-C
12V-5A-892H(N)-1AC-C
1
IC13
M
+12V
CN8
RXD2
TXD2
RXD1
TXD1
K5
J26
S14K350
CY5
R7
100/1WCX4
103/275V
K4
10K
10K
10K
10K
1K
S14K350
RA-362M
CY2
472/250V/275V
CY1
472/250V/275V
SA1
1
8MH/20A
472/250V/275V
H
J4
J2
400N/PSB400
CX3
225/275V
J58
R86 0
RV3
CX2
225/275V
1K
1K
1K
1K
RV2
1
AC-N
L2
R2
1M
ST
R49
R48
R47
R46
R1
CX1
1M 225/275V
CY4
472/250V/275V
RV1
S14K350
CY3
472/250V/275V
T25A 250VAC
PE
COM
PTC1
1
CN3
CN11
1
1
FUSE1
AC-L
CN1
CN20
XG-B
4
5V
3
5V
2
CG-B
1
CN10
AC-L OUT
R31
R32
R33
R34
R57
CN2
CN9
AC-N OUT
1
CN6
AC-N OUT
1
CN7
AC-L OUT
CN12
Outdoor unit control board Circuit Diagrams
D10
IN4007
CY9
222/250V
R4
2K/2W
TLP851/PC851
106
Domestic Air Conditioner
Wring diagram
Outdoor unit module board Circuit Diagram
5.2MH/15A
CN7
CN6
2
LI
CN1
P
D207
FFA30U60DN
24
P
U 23
CN2
U
V 22
CN3
V
W 21
CN4
W
PM1
PS21965-AT
1
3
IC8
C404
SGH40N60UF
474/275V
C405
104/275V
680U/400V*2
3
15V
R230
IC6
1
3
4 HA1630D06
R211
1K
1K
6
R209
1K
5
IC6
7
R210 6.8K
1
2
3
4
5V
5V
R202
6.2K
R205
1K
2
IC4
1
C202
104
4 HA1630D06
R206
1K
R201
1K
6
R203
1K
5
R204 6.2K
IC4
7
15V
CN10
C504
100U/25V
3
2
1
HA1630D06
C501
100U/16V
5V
PC2
330
CN11
PC817A
MMBT9013
TR3
3
2
1
C018
103
R016
1K
R012
4.7K
R015
C017
223
330
R013
C016
472
PC817A
5V
R019
4.7K
R018 4.7K
PC1
R014
VNO
VNC
CIN
FO
VN1
WN
VNC
VN
VP1
UN
WP
5V
8
7
6
5
IC3
24C04
R010
4.7K
8
3
VP
HA1630D06
R226130K
C201
104
R207
C014
TR2
MMBT9012/2SA1037AK 102
C011
104
R227130K
2
8
UP
D203
US1M
C032
104
D202
US1M
C034
104
D201
US1M
C036
104
10
R229 4.22K R228130K
R212
9.1K
VUFB
R213 100
1
C203
104
R208
6.8K
R011
4.7K
D206
24V/1W
C023
224
5V
C412
47U/25V
C411
47U/25V
C022
103
R008
4.7K
5V
5V
C003
104
C002
104
C006
474
C004
104
41
R009 4.7K 42
43
44
45
46
47
R006 100
R005 4.7K
C020
48
102
49
C019 50
R017 4.7K
103
51
52
53
54
C028
R007 4.7K 55
103
56
57
CN12
58
RES
59
7
FWP
60
6
TXD
5
RXD
4
MD1
3
5V
2
GND
1
20
19
18
17
16
15
14
13
12
11C001
10 104
9
8
7 C015
6 102
5
4
3
2
1
C410
47U/25V
IC1
SH7046
D204
LL4148
C005
104
5V
IC2
T600D
C008
474
HA17393AF
5V
R224
4.7K
15V
C413
100U/25V
C009
471
C208
104
9 10 11 12 13 14 15 16 17
R004 4.7K
C207
104
8
IC5
7
4 HA17393AF
TR1
MMBT9013
7
R002 4.7K
IC5
6
2
C204104
8
5
C205
223
5
4
40
39
38
37
36
35
34
33
32
31
30
29 R231 4.7K
28
27
26
25
24
23
22
21
6
R220 82
3
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
R218 82
2
C007
474
R001 4.7K
R221 140
R222
1.6K
C029
471
R003 4.7K
R216
10
C502
100U/25V
R225 20K
5V
C030
471
330
C012
104
5V
N
VWFB
R214
100
15V
8
IC7
6
TLP251
3
5
R217 1K
5V
2
20
0.015/5W
D205
LL4148
4
RS2
N
CN5
VVFB
10K
RS1
0.015/5W
R223
C406
104/275V
R215
BG1
D25BX60B
CN9
AC-N
R219 1K
CN8
AC-L
LO
X1 10M
C013
104
4.7U/16V
C503
D208
LL4148
5V
330
1
107
1
Domestic Air Conditioner
The end
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