Split air conditionerWall mounted Type
Service manual
AUS-18H53R120C*(Da)
AUS-24H53R230T*(Da)
AUS-09H53R120P*(Db5)
AUS 12H53R120P*(Da4)
1
CONTENTS
48Wiring diagrams
Exploded views and parts list 32
To disassemble mechanical parts 26
Control specific ation 20
Fault diagnosis by symptom 16
12Trouble solve methods
11Trouble shootin g
10Block diagram
Safety precautions 2
Installation 2
1Contents
The following safety precautions must be taken when using your air conditioner.
SAFETY PRECAUTIONS
1. Warning: Prior to repair, disconnect the power cord.
2. Use proper parts: use only exact replacement parts. (Also, we recommend replacing parts rather
than repairing them.)
3. Use the proper tools: use the proper tools and test equipment, and know how to use them. Using
defective tools or test equipment may cause problems later-intermittent contact, for example.
4. Power cord: prior to repair, check the power cord and replace it if necessary.
5. Avoid using an extension cord, and avoid tapping into a power cord. This practice may result in
malfunction or fire.
6. After completing repairs and reassembly, check the insulation resistance.
Procedure: prior to applying power, measure the resistance between the power cord and the ground
terminal. The resistance must be greater than 30 megohms.
7. Make sure that the grounds are adequate.
8. Make sure that the installation conditions are satisfactory. Relocate the unit if necessary.
9. Keep children away from the unit while it is being repaired.
10. Be sure to clean the unit and its surrounding area.
1
2
Location of indoor unit
A place solid enough to bear the weight of the unit and not cause any shake.
Good ventilation, less dust, far from direct rain and sunshine.
Avoid places close to inflammable gas leakage.
Keep the air inlet and outlet at a far distance from the blockage.
Keep the height distance between the indoor and outdoor unit at most 5m.
Mount on the wall solid enough to bear the weight of the unit and not cause any shake.
Avoid direct sunshine.
A place easy for condensate drain and easy for connecting with the outdoor unit.
Keep a far distance away from the fluorescent lamp, it may influence the operation of remote controller.
Location of outdoor unit
Keep at least 1m away from the TV radio and other home appliances.
A place where the air discharged out of the outdoor unit or the operation noise will not annoy your
neighbours.
No blockage near the outdoor unit.
Avoid places close to inflammable gas leakage.
Selecting area for installation
INSTALLATION
Select an area for installation that is suitable to the customers needs.
It is harmful to the air conditioner if it is used in the following environments: greasy areas (including area
near machines). Salty area such as coastal areas, areas where sulfuric gas is present such as hot spring
areas. Contact your dealer for advice.
Caution:
2
front
right
backUnderside Left-back
back
Notice: do not elevate the
drain hose.
The copper pipe can be led
from back, right, underside,
or left-back side.
Cover connecting pipe with
adiabatic material.
Sponge plastic adiabatic
material with the
thickness of 8mm.
While installing the pipeline on the
thin armor plate or on the wall of
metal mesh, you should use the
wooden board to clamp between
the wall and the pipeline, or wrap
up the pipeline with 7-8 layers of
insulating plastic tape.
left
100mm以
上
above 300mm
above 500mm
above 300mm
ab
ove
50
0m
m
above 500mm
INSTALLATION
Installation diagram of indoor unit and outdoor unit
Confirm the installation position by the mark of the indoor mounting plate.
above 155mm
ab
ove
25
0m
m
Ab
ove
20
mm
above 105mm
3
Securing the mounting plate and drill on the wall 1 Secure the mounting plate
The mounting plate should be attached to the structural part of wall (post etc).
NOTICE:
The holes at solid arrow position must be secured to avoid the shake of mounting plate.
When the expansion bolts are used, two holes ( 11×20 or 11×26 ) that the distance between them is 450mm should be adopted.
Confirm the position of holes, and drill holes on the wall.
INSTALLATION
40m
m
Pipe holeplumb
fasten string at the central hole at least 250mm
at least 180mmat least 140mm
120mm Center of hole( ) 65mm Center of hole( ) 65mm
4
Wiring2Open the front grille;Remove the screw from electrical box cover, pull the electrical box cover away from the unit and set aside.Remove the screw from fastener, pull the fastener away from the unit and set aside.Connect the cable.Replace the fastener and electrical box cover.
Indoor unit terminal
Screw
Connecting cable
Diagram
NOTE:
The appliance shall be installed in accordance with national wiring regulations.
The appliance must not be installed in the laundry.
The appliance must be installed 2.3m above the floor.
The appliance must be positioned so that the plug is accessible.
For some models whose cooling capacity are above 4600W (17000BTU/h),
an all-pole disconnection device which has at least 3mm separation distance in
all pole and a residual current device(RCD)with the rating of above 10mA shall
be incorporated in the fixed wiring according to the national rule.
INSTALLATION
The drain hose must be arranged beneath the copper pipe.The drain hose must not be hunched or twisted.While wrapping up the drain hose, do not pull it.The drain hose through the room must be wrapped up by the thermal insulation materials.The copper pipe and the drain hose must be wrapped up by feltstrip. Adiabatic pad should be used at where the pipe contacts the wall.
NOTE:
12
3
ROUTE OF PIPE
If pipe comes out of the right side of the indoor unit, cut part “1” of the unit;If pipe comes out of the lower-right side of the indoor unit, cut part “2” of the unit;If pipe comes out of the left side of the indoor unit, cut part “3” of the unit.
Installation of the drain hose3
Drain hose
gas pipe Liquid pipe
felt
Adiabatic underlay
drain hose
If pipe comes out of the left side of the indoor unit, the drain hosemust be refitted, otherwise water leakage may occur.Refit methods: Interchange the position of drain hose and drainrubber plug.Clearance is not allowed after refit, it would lead to water leakage.
Drain rubber plug
REFIT OF DRAIN HOSE
5
Arrangement of the drain hose
To drain the condensate water easily, the drain hose should be declined downwards.
The following 5 arrangement methods are incorrect.
Decline downward
(Fig. 1) (Fig. 2) (Fig. 3) (Fig. 4)
Water leak
Standing water
air
Dip into water
hose
(Fig. 5)
50mm or less above floor
Decline downward
Water leak
Water leak
If you find the drain hose not long enough to connect with the indoorunit, you can extend it with the hoses in the accessory box.The drain hose through the room must be wrapped up with the specialadiabatic material.
Drain hose
Hose(ID 15cm) PVC hard
INSTALLATION
5 Pipe Connection
DIAMETER OF PIPE
6.35mm ( 1/4”)
9.52mm ( 3/8”)
12.7mm ( 1/2”)
TORQUE(N·m)
13.7---17.6
34.3---41.2
49.0---56.4
Align the centre of joint in line with that of flare and tighten the nut of connecting pipe with wrench.
Put some seal oil to cover the joint and the flare.
15.88mm ( 5/8”) 73.0---78.0
The number of bent position of the pipe in the indoor unit should not exceed 10.The number of bent position of the pipe in the indoor unit and the outdoor unit should not exceed 15.The radius of bent position should be more than 10cm.
Evaporator craft tube
Do not exhaust the inside air just by loosing the nut since there is the air of certain pressure inside the tube of indoor unit. Please do not make extra effort for fear of damaging the flare.
Attention:
Please break the evaporator craft tube with pincers before connecting. After exhausting the inside air, use the wrench to twist down the nut of connecting tube of the evaporator.
Installation of the indoor unit
Let pipe go through the wall hole and attach the indoor unit to the mounting plate.(Press the rib of indoor unitinside the hook of the mounting plate.) the rib of indoor unit
the mounting plate
Bottom
Indoor unit4
Wall sealing and Pipe fasteningUse putty to seal the wall hole.
Use clamp (pipe fastener) to secure the pipe at specified position.
Indoor unit
clamp
screw
get rid of unwanted partseal with putty
secure the connecting pipe with clamp
6
6
INSTALLATION
1 Wiring
Installation diagram of indoor unit and outdoor unit
7
If the interconnection cord for power supply has to be replaced, please see the following table for reference.
Notice:
If the signal wire has to be bought separately, choose electric wire above 0.75mm.
MODEL SPECS (Interconnection cord)
≤2700W(10000BTU/h) ≥1.0mm
3000W(11000BTU/h) -4000W(15000BTU/h)
4500W(18000BTU/h) -8000W(28000BTU/h) ≥2.5mm
1.5mm≥
2
2
2
WARNING:
Special cable must be used to connect indoor unit and outdoor unit. It should be ensured that the terminals are not influenced by external force. Poor connection may cause fire.
The electric box cover must be mounted and secured in position, otherwise fire or electrical shock may occur because of dust or moisture.
The connecting cables must be clipped together.
Please take the electric circuit diagram attached to the indoor/outdoor units as major reference while installing.
The power wire and signal wire between the indoor/outdoor units must be connected one by one as per corresponding number on the wiring terminal board.
The temperature of refrigerant circuit will be high, please keep the interconnection cable away
from the copper tube.
Connectingcable
Outdoor unit terminal
BurrObliqueCopper pipe
90 Roughness
ReamerBurr
A
Outer diameter A(mm)
2.0--2.5
3.0--3.5
3.5--4.0D
6.35mm ( 1/4”)
9.52mm ( 3/8”)
12.7mm ( 1/2”)
15.88mm(5/8 )” 4.0--4.5
Air exhausting4
Installation of the drain joint(only for heat pump type)
Bottom
Double-channel drain joint Drain hose
Joint of the connecting pipe
Put some seal oil to cover the joint and the flare.
Align the centre of joint in line with that of flare and tighten the nut of connecting pipewith wrench. ( Adjust the torque by the same method of connecting pipe for indoor unit.)
Insert the outdoor double-channel drain joint in one of the bottom holes of the suitable size then connect drain hose and joint together.
2
3
Screw down the cap of both gas shut-off valve and liquid shut-off valve as well as the nut of service port.
Process of flared tube5
Use the pipe cutter to cut off the broken part of flare.
Remove burrs at the cut of the flare.
Insert a nut into the connecting pipe and do flaring with specified flaring tools, reamers for example.
Check the quality of flaring technique.
Remove burrs at the cut of the flare.
8
INSTALLATION
3-Way Valve
Manifold Gauge
Vacuum Pump
Connect the centre hose of the manifold gauge to the vacuum pump.
Connect the manifold gauge to the outdoor unit gas line port as shown.
Turn the vacuum pump on for about 10-15 minutes in order to evacuate the air.
Close the manifold valve, then turn off the vacuum pump and disconnect the hose.
Replace the cap on the 3-way valve.
Set both the liquid and gas line valves to fully open position with the hexagonal wrench for the unit operation.
Re-install the valve caps.
Screw the gas shut-off valve to close, connect
charging hose(low pressure) to the service valve
and then open gas shut-off valve again.
Connect the refrigerant bottle to the charging hose
and then convert it.
Disconnect the manifold gauge after turning off the
shut-off valve, and then open gas shut-off valve again.
Exhaust the air as the above-mentioned method.
Tighten nuts and caps of each valve.
Fill in liquid refrigerant as the above table.Service port
Manifold gauge
Low pressurevalve
High pressurevalve
Pressure meter
Charging line
Adding refrigerant
If the connecting pipe is longer than 7 metres, add refrigerant as needed. (Cool only type) added
amount A=(Lm-7m)×15g/m ; (Heat pump type)added amount A= (Lm-7m) ×50g/m. ( A: amount
of added refrigerant, L: the length of connecting pipe)
6
7
0
0
8
15
50
9
30
100
10
45
150
The length of connecting pipe (m)
(Cool only type)added amount (g)
(Heat pump type)added amount (g)
Set the unit to cool operation mode.
Stop operation of the air conditioner.
Relocation of the air conditioner.
Refer to this procedure when the unit is relocated.
1. Carry out the pump down procedure.
2. Remove the power cord.
3. Disconnect the assembly cable from the indoor and outdoor units.
4. Remove the flare nut connecting the indoor unit and the pipe.
At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
5. Disconnect the pipe connected to the outdoor unit.
6. Make sure you do not bend the connection pipes in the middle and store together with the cables.
7. Move the indoor and outdoor units to a new location.
8. Remove the mounting plate for the indoor unit and move it to a new location.
7
9
INSTALLATION
Operation test8
Before test operation, wiring safety inspection must be carried out carefully again.
1. Emergency switch operation: Every press of emergency switch, the
air conditioner runs as in the following order:
Cool only type: Cool Shut off
Heat pump type: Cool Heat Shut off
2. Remote controller operation: If the indoor unit sounds like Di, Di when pressing I/O button,
that indicates the air conditioner is under the operation of remote controller. After that, press
every button to test their functions.
3. operation: Check switch Open the front grille and press the check button. Switch on the power
source and then the operation test is activated. If the indicator lamps light up at first and then
go out in succession or the LED window of the indoor unit illuminates at first and then goes out,
the system is under normal operation. If one of the indicator lamps is flashing at all times, or
failure codes are displayed on the LED window of the indoor unit, the system has something
wrong and please check malfunction immediately.
Check valve
Capillary tube
Capillary tube
Liquid side
2-way valve
Gas side
3-way valveAccumulator
Compressor
4-way valve
Cro
ss
fan
Heatexchanger(Condenser)
Pro
pe
ller
fanHeat
exchanger(Evaporator)
INDOOR UNIT OUTDOOR UNIT
CoolingHeatingGas leak check point
BLOCK DIAGRAM
Refrigerant Cycle Block Diagram
10
INSTALLATION
TROUBLE SHOOTING Items to be checked first
1. Is the voltage of the power correct? The input voltage shall be rating voltage ±10%. The air conditioner may not operate properly if the voltage is out of this range.
2. Is the link cable connecting the indoor unit and the outdoor unit linked properly? Please refer to the wiring diagram Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
3. When a problem occurs due to the contents illustrated in the table below, it is symptom not related to themalfunction of the air conditioner.
Operation of air conditioner
In COOL operation mode, the compressor does not operate at a room temperature higher than the setting temperature that the indoor fan should operate.In a HEAT operation mode, the compressor does not operate at a room temperature lower than the setting temperature that indoor fan should operate.
It happens after a delay of 3 minutes when the compressor is reoperated. The same phenomenon occurs when a power is on.As a phenomenon that the compressor is reoperated after adelay of 3 minutes, the indoor fan is adjusted automatically withreference to a temperature of the air blow.
Fan speed setting is not allowed in AUTO or DRY mode. The speed of the indoor fan is set to low in DRY mode.Fan speed of 3 steps is selected automatically in AUTO mode.
Explanation
Compressor stops operation intermittently in DRY mode. Compressor operation is automatically controlled in DRY modedepending on the room temperature and humidity.
Compressor of the outdoor unit is operating although it is turned off in HEAT mode.
When the unit is turned off while de-ice is activated, thecompressor continues operation for up to 10 minutes(maximum)until the deice is completed.
Timer indicator lamp lights up and the air conditioner doesnot operate.
Timer is being activated and the unit is in ready mode.The unit operates normally if the timer operation is cancelled.
The compressor and indoor fan stop intermittently in HEATmode.
The compressor and indoor fan stop intermittently if room temperature exceeds a setting temperature in order to protectthe compressor from overheated air in HEAT mode.
Indoor fan and outdoor fan stop intermittently in HEAT mode.The compressor operates in a reverse cycle to remove exteriorice in HEAT mode, and indoor fan and outdoor fan do not operate intermittently for within 20% of the total heat operation.
The compressor stops intermittently in COOL mode or DRYmode, and fan speed of the indoor unit decreases.
The compressor stops intermittently or the fan speed of the indoor unit decreases to prevent inside/outside air frozendepending on the inside/outside air temperature.
11
TROUBLE SOLVE METHODS
Indoor unit dunit and outdoor unit.
isplay and solve methods of protector stop ingredients in indoor
1.Press the emergency operation switch for 3 seconds, the buzzer sounds twice and display the trouble code.
2.The display panel show the relevant protector ingredients, it doesn't display if it hasn't the display panel.
3.It's show the protector code of indoor unit if the run indication flashed, it doesn't flash if it hasn't run indication. It's show the protector code of outdoor unit if the time indication flashed, it doesn't flash if it hasn't time indication. The flash times show the relevant protector code, for example, the time indication flashed times, show the over-current protector (count method: 1 time per second, 4 times aggregately → stop for 3 second → 4 times aggregately → stop for 3 second ……flashed circulatory; other code analogous.) it will exit for 3 minutes and resume normal display status.
“4#”1 time per second,
protect ingredients code display
Indication lamp code display
Protect names Solve methods
F1
F2
F3
F4
1F
2F
3F
4F
5F
6F
7F
8F
1#(run indication display)
2#(run indication display)
3#(run indication display)
4#(run indication display)
1#(time indication display)
2#(time indication display)
3#(time indication display)
4#(time indication display)
5#(time indication display)
6#(time indication display)
7#(time indication display)
8#(time indication display)
Heat overloading protector
Cool freeze protector
Instantaneous power cut
direct current fan motor no feedback
cool overloading protector
exhaust overheating protector
over or not enough pressure protector
over-current protector
IPM protector
defrost state
direct currentcdrive exceptional(no feedback)
ompressor
direct current compressor cannt start
This kind of trouble can renew automatically.
Indoor unit display and solve methods of troubles in indoor unit and outdoor unit.
1.The indoor unit and outdoor unit will stop if it has trouble, and display the trouble immediately. (it's allowed to run at the set speed when the air conditioner at the cooling state.
2.Display mode: the display show the relevant trouble code, it doesn't display if it hasn't the display panel.
3.It will be the trouble of indoor unit If the run indication of indoor unit flash. it doesn't display if it hasn't the run indication. It will be the trouble of outdoor unit If the time indication of indoor unit flash. it doesn't display if it hasn't the time indication. The flash times show the trouble code, for example, the run indication flashed “5#” times, show the bad communication of indoor unit and outdoor unit. (count method: 1 time per second, 5 times aggregately → stop for 3 second →1 time per second, 5 times aggregately → stop for 3 second ……flashed circulatory; other trouble code analogous.) the display renewed if the trouble solved.
12
TROUBLE SOLVE METHODS
13
Trouble code display
Indication lamp code display Trouble names Solve methods
6#(run indication display)E1 Inspect the Room temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K, if open circuit, please replace the temperature sensor.
E2 7#(run indication display) Inspect the pipe temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K, if open circuit, please replace the temperature sensor.
E3 8#(run indication display) Inspect the fan motor of indoor unit whether mangled, if not, use the remote controller to turn to fan mode from indoor mode, observethe fan motor whether running, if it running, inspect the feedback wiring harness of fan motor whether open circuit; if not, replacethe control board of indoor unit, if it cannt running also, please replace the fan motor.
E5 5#(run indication display) Inspect the AC input terminal of indoor unit and outdoor unit whether corresponding, if it is, use the direct current of multimeter to test whether the communication wire and AC N phase is 18V, if it is, inspect the connecting
communication wiring harness and module
board is alright, if it is, replace the module
board of outdoor unit, if the trouble cannt
solved also, please replace the electrical
control board.E6 Replace the electrical control board.
1E 11#(time indication display) Inspect the Room temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K, if open circuit, please replace the temperature sensor.
The trouble of indoor unit room temperature sensor.
The trouble of unit pipe temperature sensor.
indoor
The trouble of PG motor.
The trouble of bad communication of indoor unit and outdoor unit.
The EEPRO of indoor unit error.
The trouble of outunit room temperature sensor.
door
The trouble of outunit pipe temperature sensor.
door Inspect the pipe temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K, if open circuit, please replace the temperature sensor.
2E 12#(time indication display)
The trouble of exhaustsensor.
3E 13#(time indication display) Inspect the exhaust sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the roomtemperature sensor about 50K, if open circuit, please replace the temperature sensor.
4E 14#(time indication display) The EEPRO of indoor unit error.(outdoor unit)
Replace the module board of outdoor unit.
8E 18#(time indication display) The trouble of PFC. Replace the module board of outdoor unit.
TROUBLE SOLVE METHODS
14
Outdoor unit frequency restrict condition code: (The red led lamp in module board of outdoor unit display it.)
when the compressor is running normally, the LED lamp flashing show the frequency restrict condition code. For example, when the lamp flashed “4”times, show the total current restricted. (Count method: 1 time per second, 4 times aggregately → stop for 3 second →4 times aggregately → stop for 3 second ……flashed circulatory; other code analogous.)
1# when the compressor is running normally, no restriction complication.
2# voltage restriction of power supply.
3# outdoor unit heat exchanger temperature restricted when cooling; indoor unit heat exchanger temperature restricted when heating(overload).
4# the total current restrict.
5# exhaust temperature restrict.
6# indoor unit heat exchanger temperature restricted when cooling (prevent freeze).
7# speed restrict of indoor unit's fan motor.
8# frequency modulation voltage restrict of outdoor unit.
Notice: frequency modulation voltage restrict of outdoor unit means inset an needle, then connect a potentiometer which can be adjusted, it can adjust the running frequency of compressor.
Protector stop ingredients of outdoor unit and trouble code display(The red LED lamp in module board of outdoor unit display it.)
If the air conditioner have the protector stop ingredients and some trouble when the compressor stopped, the LED lamp of outdoor unit flashed and display the protector stop ingredients and trouble code. The times the lamp flashed shows the relevant code. For example, the lamp flashed “6”times ,show the over current protect. (count method: 1 time per second, 6 times aggregately → stop for 3 second →1 time per second,6 times aggregately → stop for 3 second ……flashed circulatory; other code analogous.)
1# short circuit or open circuit in room temperature sensor.
2# heat exchanger temperature sensor open circuit.
Solve method: Inspect the Room temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K in the normal temperature, if open circuit, please replace the temperature sensor.
Solve method: Inspect the Room temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 5K in the normal temperature, if open circuit, please replace the temperature sensor.
3# short circuit or open circuit in exhaust temperature sensor.
Solve method: Inspect the exhaust temperature sensor whether short circuit or open circuit. Use the multimeter to measure the resistance of the room temperature sensor about 50K in the normal temperature, if open circuit, please replace the temperature sensor.
4# Direct current compressor feedback.
Solve method: cut the power off, connect the power supply again, if there have any trouble also, replace the module board of outdoor unit.
5# The trouble of bad communication of indoor unit and outdoor unit.
Solve method: 1. inspect the connecting wire between indoor unit and outdoor unit, be sure the L and N haven't connect in reverse. 2. whether the communication wire connect reliably. 3. replace the module board. 4. replace the electrical control board of indoor unit.
TROUBLE SOLVE METHODS
15
9# The direct current compress cann't start-up.
Solve method: cut the power off, connect the power supply again, if there have any trouble also, replace the module board of outdoor unit.
10# Overload when cooling.
Solve method: inspect the radiation of the indoor unit and outdoor unit whether alright or the outdoor temperature too hot, or adding the Refrigerant again.
11# Deforst stateSolve method: it can be renew automatically.
12# IPM protect
Solve method: replace the module board of outdoor unit.
13# The EEPRO error.Solve method: replace the module board of outdoor unit.
17# Exhaust over heating protect.
Solve method: adding the Refrigerant or adding the Refrigerant after vacuumized.
6# Over current.Solve method: 1. the air conditioner cooling / heating current exceed the initialization. 2. the voltage test loop broken or the component haven't welding tried, replace the module board.7# No load.Solve method: cut the power off, connect the power supply again, if there have any trouble also, replace the module board of outdoor unit.
8# The pressure over or not enough.
Solve method: 1. whether the voltage exceed 255V or less than 170V. 2. the voltage test loop broken or the component haven't welding tried, replace the module board.
FAULT DIAGNOSIS BY SYMPTOM
No cooling effect at all
Fan motor error
Fan motor or its capacitor faults.
Loose connection or badly contact.
compressor does not operate
Control circuit error.
Voltage may appear a little lower or higher.
Loose or wrong connection.
Compressor faults or jumps for overloading.
Control circuit error.
Leakage of refrigerant Recharge the refrigerant at leaking place.
Block of the cooling system
Poor cooling efficiency
Insufficient refrigerant Some cracks, welding failure in the system.
Air filter is blocked
No periodical cleaning.
Accumulated lampblack, dust or contaminated ambient environment.
Too high ambient temperature
The outdoor unit gets exposed to the sun for too long period.
Air conditioning burden is not adequate for theroom
The capillary, pipeline are blocked or the valve is not open or the connecting tube is folded flat.
The doors and windows are not closed well; too weak of input cooling power or too manyheat resources in the room.
Some leakage in the valve.
No cooling
The four-way valve error
Blockage in the system
The valve is not completely open; the capillary or Pipeline is half blocked.
Connecting tube is folded flat.
The distributing air of the four-way valve may have mixed together; the valve core or solenoid valve faults.
Low airflow volume
Low fan motor frequency or capacitor is not functional.
Low fan speed or the fan motor faults.
Extra fluorin is added during mounting.
Mount ing locat ion is not sui tabl e, such as near the wal l.
Air outlet is blocked or accumulated lampblack or dust is attached to the vane.
Poor efficiency ofheat dissipating onthe outdoor unit
Not for residential use.
16
No heating effect at all
Fan motor error
Fan motor or its capacitor faults.
Loose connection or badly contact.
compressor does not operate
Control circuit error.
Voltage may appear a little lower or higher.
Loose or wrong connection.
Compressor faults or jumps for overloading.
Control circuit error.
Leakage of refrigerant Recharge the refrigerant at leaking place.
Block of the cooling system
Poor heating efficiency
Insufficient refrigerant Some cracks, welding failure in the system.
Air filter is blocked
No periodical cleaning.
contaminated ambient environment.
Too low ambient temperature
Below 0℃.
Too thick frostgenerated on the condenser.
The condenser does not defrost, no smooth air circulation.
Extra refrigerant or mixing air in the system
Discharge the redundant refrigerator recharge the refrigerant after vacuum extraction.
The condenser is too dirty
Air conditioning burden is not adequate for theroom
Accumulated lampblack or dust is attached to the vane.
The capillary, pipeline are blocked or the valve is not open or the connecting tube is folded flat.
The doors and windows are not closed well; too weak of input cooling/heating power.
Some leakage in the valve.
No heating
The four-way valve or solenoid valve faults.
The four-way valve did not commutate or thedistributing air of the four-way valve may have mixed together.
The electric heater is not working
Not satisfy the conditions for electric heater running.
Plug cords may be loose.
The four-way valve error
Blockage in the system
The valve is not completely open; the capillary or Pipeline is half blocked.
Connecting tube is folded flat.
The distributing air of the four-way valve may have mixed together; the valve core or solenoid valve faults.
Low airflow volume
Low fan motor frequency or capacitor is not functional.
Low fan speed or the fan motor faults.
Extra fluorin is added during mounting.
FAULT DIAGNOSIS BY SYMPTOM
17
Noise from indoor unit
Collision sound of the machine
Flowing sound of the liquid
Sound of the running fan motor
Sound of plastic pieces rubbing or deforming
Oscillation sound
Sound of running fan motor
Vane imbalance or distortion.
Sound made by cooling operation
Refrigerant circulation or vane distortion.
Sound of running compressor
Something wrong with the compressor, such as oil shortage, valve slice distortion.
Noisy
Fixing bolts somewhere may loose or rub, some spare parts may not match very well.
Refrigerant circulation or pressure change of refrigerant while switch on/off.
Vane imbalance or distortion, rupture; loose screw of vane.
Plastic pieces deform due to expansion when hot and shrink when cold. Or some spare parts may not match very well.
Noise from Outdoor unit
Collision sound of the machine
Collision of the pipeline, fixing screws loose or deform caused by rubbing.
Inappropriate installation method; the unit does not match with the installation kit very well or the compressor quivers acutely.
The whole unit resonates thedoor and window.
Sound made by compressor or motor
The compressor or motor makes abnormal noise.
Condensed water is attached to the vane.
Vane imbalance or distortion.
Resonance sound
Collision sound of the machine
Flowing sound of condensed water
Sound of running fan motor
Noise from
the whole unit
The unit does not match with the installation kit very well
Collision of the pipeline, fixing screws loose or
plastic pieces deform.
FAULT DIAGNOSIS BY SYMPTOM
18
Switching on the air conditioner
The current leakage switch jumps to turn off
Junction wire looses and collides with the outer cover.
Degraded capability of wire insulation.
Insulation capability of some components has lowered.
Che ck the res istance of every component by multimeter
Water comes into the plug or electric components.
The fuse is blown or air limit switch jumps to turn off
Is the voltage of power supply lower
than 15% of rated voltage(220V)?
Yes The voltage is low, please add manostat.
Short circuit somewhere.
Partially short circuit in some components.
Fuse capacity is adequate or not?
Yes
No
No
Replace with adequate
fuse.
Check as the above-mentioned method.
Short circuit in the electric wire or connection wire.
Without any response
Check whether the receptacle has
power or not.
Power supply error
Strong circuit breaks the circulation.
The transformer faults.
The main control board
faults.
FAULT DIAGNOSIS BY SYMPTOM
19
CONTROL SPECIFICATION
11
22
ABBREVIATION
ST: Setting Temperature
PT: Indoor coil Pipe Temperature
RT: Room Temperature
OT: Outdoor coil pipe temperature
OPERATION OF MAIN BOARD
COOL MODE
The ST at cool mode is adjustable within16℃-31 .℃
When RT≥ST, both the compressor and the outdoor fan start;When RT<ST-1℃, the compressor stops and 18 seconds later, the outdoor fan will stop.But the indoor fan keeps running at predetermined speed.
Once turning on the unit while set at cool mode, the indoor fan immediately runs at predetermined speed; if all the conditions meet with the requirement of compressoroperation, both the outdoor fan and compressor start running. If not, either the outdoorfan or compressor could start.
The four-way valve keeps being off all the time at cool mode.
If the horizontal air flow louver is set at low angle on COOL mode, after a while, it will auto swing toits maximum angel for system protection. 3 minutes later, the horizontal air flow louver will resume to its original position.
Condensate dew prevention
Anti-ice function
When PT≤-1℃ for 5 minute, the compressor and outdoor fan stop and indoor fan runs at high speed. Meanwhile, the anti-ice protection will warning.
When PT≥7℃ for 5 minutes, anti-ice protection deactivates, both the compressor and theoutdoor fan start operation.
OFAN: Outdoor fan
IFAN: Indoor fan
COMP: Compressor
5 mins
3 mins
7℃
-1℃
OFAN
COMP
IFAN
ON
ON
Set speed Set speed
ON ON
ON
OFF
OFF
High speed
20
HEAT MODE
If the air conditioner is off and then turned on while set at COOL ,HEAT or DRY mode, it will take approximately 3 minutes for the compressor to start.
The ST at heat mode is adjustable within16℃-31℃.
When RT ST, the compressor stops; when RT<ST-1 , the compressor starts.≥ ℃
Once turning on the unit while set at heat mode, if all the conditions meet with therequirement of compressor operation, the four-way valve gets charged and 8 seconds later,the compressor and outdoor fan start running.
Heat overload protection:
Deice control:
Conditions for activating deice:
1. a. The working hours of compressor accumulates to be 40 minutes.b. When OT≤-3℃ for 5 minute, and Pt≥5℃.
CONTROL SPECIFICATION
Electric-heat control:Conditions for initiating electric-heat function:a. RT≤23℃; b. RT+3℃≤ST; c. The indoor fan runs; d. Turn on the electric-heat key; e. PT<50℃
Conditions for terminating electric-heat function:a. PT 50 ; b. RT 26 ; c. The indoor fan stops running; d. Turn off the electric-heat key; e. Mode change.
≥ ℃ ≥ ℃
Conditions for terminating electric-heat function:a. PT 50 ; b. RT 26 ; c. The indoor fan stops running; d. Turn off the electric-heat key; e. Mode change.
≥ ℃ ≥ ℃
OT15℃
-4℃
COMP ON
OFF
OFAN ON
OFF
ON
OFF
4-wayvalve
TIME
30S 15S 30S 15S
10 minutes at most
21
when Pt≥62℃ for 10 seconds, the compressor stops.
when Pt<48℃, and after 3 minutes, the compressor starts.
2. a. The working hours of compressor accumulates to be 40 minutes.b. When OT≤-7℃ for 5 minute, and PT<5℃.
3. a. The working hours of compressor accumulates to be 40 minutes.b. When OT≤-10℃ for 5 minute, and PT<-3℃.
Strong-wing prevention :
A.PT<27,the indoor fan stops running, the swing louver cannot be controlled by the remote controller.B.34>PT≥27,the indoor fan runs at low speed, the sweep louver erects.
C.PT≥34,the indoor fan and the swing louver can be controlled normally.
CONTROL SPECIFICATION
22
DRY MODE
In this mode, the air conditioner automatically sets the room temperature and this temperature
is incontrollable by remote controller. The initial ST =RT-2 .℃
Control during dry mode:a. When RT<15℃, dry mode is not available; when RT≥15℃, the compressor intermittentlyruns under the influence of TS and RT.
b. When RT 23 , if RT ST, the compressor runs intermittently as this: Run for 8 minutes Stop for 3 minutes
≥ ℃ ≥
If RT<ST, the compressor runs intermittently as this:
Stop for 4 minutes Run for 1 minute
c. When RT<23 , if RT ST, the compressor runs intermittently as this: Run for 2 minutes Stop for 3 minutes
℃ ≥
If RT<ST, the compressor runs intermittently as this:
Stop for 4 minutes Run for 1 minute
d. In this mode, the indoor fan keeps running at low speed with the same pace as the compressor,
and this speed can not be controlled by remote controller.
AUTO MODE
Mode Mode
24 ℃
26 ℃
RT-2 RT-2 Cool Cool
Dry RT-2 RT-2 Dry
Heat
24 ℃
21
℃
Room Temperature (RT)
RT≥26℃
25 >RT≥23℃ ℃
RT<23℃
26 >RT≥25℃ ℃
Heat pump typeCool only type
Initial Setting Temperature Initial Setting Temperature
In this mode, the air conditioner can automatically adjust the room
suitable temperature. At the start of operation, the unit will automatically select the operation mode
according to the room temperature. The following table shows the conditions which are set at start up.
temperature to decide the most
Auto mode entering
a. Once some operation mode is determined, it can not be changed even if the RT has altered.
b. You can change the operation mode by remote controller.
If restart within 2 hours, the unit will resume the same operation mode as before.
If restart after 2 hours, the unit will select the operation mode according to the initial room temperature.
At auto mode the ST can only be set + or - 2 of the RT.℃
CONTROL SPECIFICATION
23
FAN MODEIn this mode, the outdoor unit does not operate. The indoor fan alone operates.
Press UP & DOWN SWING button or LEFT & RIGHT SWING button to change air flow direction.
Press FAN SPEED button to change the fan speed of indoor unit.
LIGHT-WAVE MODE (only applied to light-wave series)
Every press of LIGHT-WAVE button, the air conditioner will cycle in the mode. Once entering the light-wave mode, the light-wave icon will light up on display panel of the indoor unit and the air conditioner will judge whether to connect the light-wave tube by ambienttemperature.
order of enter/quit light-wave
TURBO function (only applied to turbo series)
This function will make the air conditioner heat or cool quickly and during this period, the noise of the air conditioner will increase. Turbo function can be only started up in heat or cool mode(turbo heating or turbo cooling) otherwise, it can not be started up. When the air conditioner is in cool or heat mode, press turbo button to initiate turbo function, the remote controller displays TURBO and the icon of fan speed is ,meanwhile the air conditioner cannot be controlled by the remote controller. Pressturbo button again or start up sleep mode or transit modes to exit turbo function. After exiting turbo function the fan runs at low speed.
“ ”
“ ”
FRESH AIR function (only applied to fresh air series) When the air conditioner is on, press fresh air button to initiate or stop fresh air function. While this function is initiated the remote controller displays FRESH AIR ,meanwhile the fan starts to run, the letter FRESH AIR extinguishes and the fan stops if fresh air function stops.
“ ”
“ ”
” ”
CLEAN function (only applied to clean series)
When the air conditioner is on, press CLEAN/PLASMA button for 3 seconds to initiate or stop clean function. While this function is initiated the remote controller displays CLEAN and it will extinguish if clean function stops. Please note that after clean function starts up, the evaporator will only clean automatically on the condition that the air conditioner is turned off normally.Moreover, after the evaporator is checked dirty by the system, the LED of indoor unit will display CLEAN to remind you of starting up the clean function.
” ”
AIR QUALITY CHECKING function (only applied to air quality checking series)
When the air conditioner is on, air quality checking function starts up automatically, at the same time the airquality indicator light on the indoor unit will flash once, which shows that the air conditioner starts up air quality checking function. After the air quality checking function is initiated, if the air quality is good the indicator light extinguishes; if the air quality is bad the indicator light will flash 5 times then lighten. Air quality is showed through the lighteness of the indicator light, the lighter the indicator the worse the air quality. When the indicator light is lighten, fresh air function is supposed to be started up. After the air isrenewed, the system will stop or continue fresh air function according to the air quality. You can also stopfresh air function as you like. When the air conditioner is turned off, the indicator light will flash once to show the air quality checking function is in gear. And every time starting up inoizer, aux-heat, light-wave, plasma,clean and turbo function the indicator light will flash once.
” ”
CONTROL SPECIFICATION
When 28 ≥st≥31 ,the unit will operate at the set temperature all along.℃ ℃
When the air conditioner is in heat mode and18 ≥st≥16 , the unit will operate at the set temperature all along.
℃ ℃
SLEEP mode
Sleep mode 1
When the air conditioner is in cooling and dry mode, the indoor fan runs at low speed operation the set temperature will increase by 1℃.One hour later, the set temperature will increase by 1℃ once more. The unit will then continue operating at 2℃ above the set temperature.
After one hour of
Normal sleep
When the air conditioner is in heating mode , the indoor fan runs at low speed. operation the set temperature will decrease by 2℃. One hour later, the set temperature will decrease by 2℃ once more. The unit will then continue operating at 4℃ below the set temperature.
After one hour of
When the air conditioner is in cooling and dry mode and ,mode 1 start up ,the set temperature will increase by 1℃ every hour .The unit will continue operating at 3℃ above the set temperature. 8 hours later, the set temperature will decrease 2℃.The unit will then continue operating at this temperature.
23 ≥st≥16 during the 3 hours after sleep ℃ ℃
When 24 ≥st≥27 , during the 2 hours after sleep mode 1 start up, the set temperature will increase by 1℃ every hour .The unit will continue operating at 2℃ above the set temperature.8 hours later, the set temperature will decrease 2℃,the unit will continue operating at this temperature.
℃ ℃
1
When 19 ≥st≥25 , during the 2 hours after sleep mode 1 start up, the set temperature will decrease by 1℃ every hour. The unit will continue operating at 2℃ below the set temperature.8 hours later, the set temperature will increase 2℃, the unit will continue operating at this temperature .
℃ ℃
When 26 ≥st≥31 , during the 3 hours after sleep mode 1 start up, the set temperature will decrease by 1℃ every hour. The unit will continue operating at 3℃ below the set temperature.8 hours later, the set temperature will increase 2℃.The unit will then continue operating at this temperature.
℃ ℃
by 1℃ every hour .The unit will continue operating at 2℃ below the set temperature.7 hours later, the set temperature will increase 1℃, the unit will continue operating at this temperature .
When 19 ≥st≥25 , during the 2 hours after sleep mode 2 start up ,the set temperature will decrease℃ ℃
Sleep mode 2
When 24 ≥st≥27 , during the 2 hours after sleep mode 2 start up, the set temperature will increase by 1℃ every hour .The unit will continue operating at 2℃ above the set temperature.7 hours later, the set temperature will decrease 1℃,the unit will continue operating at this temperature .
℃ ℃
2
When the air conditioner is in cooling and dry mode and 23 ≥st≥16 , during the 3 hours after sleep mode 2 start up ,the set temperature will increase by 1℃ every hour .The unit will continue operating at 3℃ above the set temperature.7 hours later, the set temperature will decrease 1℃. The unit will then continue operating at this temperature.
℃ ℃
When 28 ≥st≥31 ,the unit will operate at the set temperature all along.℃ ℃
When the air conditioner is in heat mode and18 ≥st≥16 , the unit will operate at the set temperature all along.
℃ ℃
When 26 ≥st≥31 , during the 3 hours after sleep mode 2 start up, the set temperature will decrease by 1℃ every hour. The unit will continue operating at 3℃ below the set temperature. 7 hours later, the set temperature will increase 1℃.The unit will then continue operating at this temperature.
℃ ℃
24
When the air conditioner is in cooling and dry mode and , during the 3 hours after sleep mode 3 start up, the set temperature will increase by 1℃ every hour .The unit will continue operating at 3℃ above the set temperature.
23 ≥st≥16℃ ℃
When 24 ≥st≥27 , during the 2 hours after sleep mode 3 start up, the set temperature will increase by 1℃ every hour .The unit will continue operating at 2℃ above the set temperature.
℃ ℃
When 28 ≥st≥31 ,the unit will operate at the set temperature all along.℃ ℃
When the air conditioner is in heat mode and18 ≥st≥16 , the unit will operate at the set temperatureall along.
℃ ℃
Sleep mode 3 3
CONTROL SPECIFICATION
by 1℃ every hour. The unit will continue operating at 2℃ below the set temperature.
When 19 ≥st≥25 , during the 2 hours after sleep mode 3 start up ,the set temperature will decrease℃ ℃
When 26 ≥st≥31 ,during the 3 hours after sleep mode 3start up, the set temperature will decrease by 1℃ every hour. The unit will continue operating at 3℃ below the set temperature.
℃ ℃
25
INOIZER function(only applied to inoizer series)
Press inoizer button to start or stop inoizer function when the air conditioner is on or set timer.
The LED of the remote controller displays while it is initiated and extinguishes while it stops.
This function can only be stopped by pressing inoizer button or turning off the air conditioner.
PLASMA function (only applied to plasma series)
When the air conditioner is on, press CLEAN/PLASMA button to start or stop plasma function.
The LED of the remote controller displays while it is initiated and extinguishes while it stops.
TO DISASSEMBLE MECHANICAL PARTS
26
Stop operation of the air conditioner and remove the power cord before repairing the unit.
Indoor unit
No Parts Procedure Remark
1 Front grille 1.Stop the air conditioner operation and block the main power.
2.Contract the second finger to the left ,and right handle and pull to open the inlet grille.
3.Draw away signal line.
6.Put hands at the two ruts of the body, then pull the front panel out .
5. Loosen two fixing screw of front grille.
4.Take the left and right filter out.
The following pictures taking this model an example are presented just for the purpose of illustrationplease take real object as major reference.
27
TO DISASSEMBLE MECHANICAL PARTS
4.Separate the electrical box from the indoor unit.
1.L evaporator.
oosen the earth screw in
2.Loosen the sull softly the indoor
pipe temperature sensor out from the pipe casing.
tepping motor line, and p
No Parts Procedure Remark
3.Push the hook outside to take the electrical box out easily.
2 Electrical parts
3 Assy tray drain
1.Push the left and right hooks to make the assy pulled out.
28
TO DISASSEMBLE MECHANICAL PARTS
3.Separate the evaporator from the indoor unit.
4 Evaporator
2.Separete the assy tray drain from the body.
1.Push the left hook and separate the left part out of evaporator.
1.Separate the fan motor from the fan.
No Parts Procedure Remark
2.Push the right hook and separate the right part out of evaporator.
5 Fan motor and
cross fan
29
1 Cabinet 1.Turn off the unit and remove the power cable.
2.Remove the upper cabinet, the front cabinet and back cabinet.
2.separate the propeller fan from fan motor.
1.Remove the nut flange. (Turn to the right to remove as it a left turned screw )
1.Loosen the fixing screw of the base-electrical control .
2 Fan motor &propeller fan
3
3.Loosen the fixed screw of fan motor,separate the fan motor from outdoor unit
Outdoor unit
No Parts Procedure Remark
Ass'y control out
2.separate the connector.
3.Separate the ass' y control out from the outdoor unit.
TO DISASSEMBLE MECHANICAL PARTSAUS-09H53R120L*(Db) AUS-12H53R120L*(Da)
AUS-12H53R120D*(De) AUS-09H53R120P*(Db)
AUS-12H53R120P*(Da)
AUS-18H53R120D*(Da)
Outdoor unit
30
TO DISASSEMBLE MECHANICAL PARTS
1 Cabinet 1.Turn off the unit and remove the power cable.
2.Remove the upper cabinet, the front cabinet and back cabinet.
2.separate the propeller fan from fan motor.
1.Remove the nut flange. (Turn to the right to remove as it a left turned screw )
1.Loosen the fixing screw of the base-electrical control .
2 Fan motor &propeller fan
3
3.Loosen the fixed screw of fan motor,separate the fan motor from outdoor unit
No Parts Procedure Remark
Ass'y control out
AUS-18H53R220D*(Da) AUS-24H53R230T*(Da)
31
TO DISASSEMBLE MECHANICAL PARTS
2.Loosen the nut flange on compressor.
3.Separate the connector.
4.Separate the ass' y control out from the outdoor unit.
No Parts Procedure Remark
Exploded Views and Parts List
32
Indoor unit
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
10
98
7
6
5 4 32
1
11
AUS-12H53R120L*(Da)AUS-09H53R120L*(Db)
Exploded Views and Parts List
Indoor unit
33
No. English Part Name qty. remark No. English Part Name qty. remark
1 air filter 2left and right aresameness
26 Drain hose 1
27 Electrical control cover 1
3 LED 1
5 Enclosure 1
6 Swing louver 1
7 Water collecting tray 1
8 Evaporator 1
9 Indoor unit fan 1
10 Oil bearing 1
11 Rubber bear support 1
12 Bottom enclosure 1
13 Power supply cord clip 1
14 Electrical control box 1
15 Indoor unit terminal block 1
16 Transformer 1
17 Mounting plate 1
18 Main control board 1
19 Power supply cord 1
20 Room temperature sensor 1
21 Pipe temperature sensor 1
22 Pipe fixing plate 1
23 fan motor 1
24 Electrical holder 1
25 Stepping motor 1
29
2
L1、L3、L16、L18
without,L15(decorate tape),L17(decorateboard)
1Decorate ring
L1、L17(display
piece),L15(transparency
piece),L15without
Indoor display panel 128
L14(control box),
L15(display box),
L16 without,L17without
Electrical control box 14
Front panel
L14、L15、L16parted as upperpanel and lowerpanel
1
AUS-12H53R120L*(Da)AUS-09H53R120L*(Db)
Exploded Views and Parts List
34
Indoor unit AUS-12H53R120D*(De) AUS-18H53R220D*(Da) AUS-18H53R120D*(Da)
Exploded Views and Parts List
Indoor unit
35
AUS-12H53R120D*(De)
No. English Part Name qty. remark No. English Part Name qty. remark
1 Mounting plate 1 24 Air filter assembly 2
2 Pipe fixing plate 1 1 25 Evaporator 1
3 Bottom enclosure 1 26 Deflector packing sleeve 6
4 Pipe fixing plate 2 1 27 Drain hose 1
5 Indoor unit fan 1 28 Upper swing louver 1
6 Stepping motor 1 29 Bottom swing louver 1
7 Motor box cover 1 30 Drain hose 1
8 Indoor fan motor 1 31 Rubber bear support 1
9 Connecting cable clip 1 32 Oil bearing 1
10 Indoor unit terminal block 1 33 Screw cover 3
11 Transformer 1
12 Main Control board 1
13 Pipe temperature sensor 1
14 Room temperature sensor 1
15 Electrical control box 1
16 Power supply cord 1
17 Electrical control cover2 1
18 Electrical control cover1 1
19 Enclosure 1
21 LED plastic support 1 D1(control)
Indoor display panel23
22 Front panel
D14、D15、D16
parted as upperpanel and lowerpanel
D17,D18(display
piece),D9 without
,D8(glass display
panel)
1
1
D15、D17(indoor
display panel)1LED20
AUS-18H53R220D*(Da) AUS-18H53R120D*(Da)
Exploded Views and Parts List
Indoor unit
36
AUS-09H53R120P*(Db)
AUS-12H53R120P*(Da)
AUS-09H53R120P*(Db5) AUS 12H53R120P*(Da4)
Exploded Views and Parts List
Indoor unit
37
No. English Part Name Quantity No. English Part Name Quantity
1Electrical control box with airsensitive display (optional)
1 28 Temperature sensor 1
2Air sensitive displaypanel(optional)
1 29 Temperature sensor 1
3Air sensitive displaypiece(optional)
1 30 Terminal block 1
4 Display electrical control box 1 31 Spring piece 2
5 LED 1 32 Grounded terminal 1
6 Display piece 1 33Electrical control boxfor P1
1
7 Connecting wire for LED 1 34 Electrical supporter 1
8 Connecting wire 1 35Rubber shockabsorption base
1
9 Cover for front panel 1 36 Fan motor 1
10 Stepping motor 1 37 Mounting plate 1
11 Ionizer(optional) 1 38 Bottom enclosure 1
12 Water collecting tray for P1 1 39Air sensitivedetectingassembly(optional)
1
13 Drain cap 1 40 Evaporator 1
14 Drain hose 1 41 Indoor unit fan 1
15 Connecting pole 2 42 Oil bearing 1
16 Air leading vane 10 43 Rubber bear support 1
17 Air leading plectrum 2 44Cover of electricalcontrol box for P1
1
18 Swing louver for P1 1 45 Transformer 1
19 Air filter supporter 2 46 Main control board 1
20 P1 front panel 1
21 Screw cover for B3 2
22 Air filter 2
23 Supporter for front panel 2
24Front panel for Pseries(optional)
1
25Decorating board for frontpanel of P series
1
26 Power supply cord 1
27 Power supply cord clip 1
AUS-09H53R120P*(Db)
AUS-12H53R120P*(Da)
AUS-09H53R120P*(Db5) AUS 12H53R120P*(Da4)
Exploded Views and Parts List
Indoor unit AUS-18H53R120C*(Da)
38
Exploded Views and Parts List
Indoor unit AUS-18H53R120C*(Da)
N o. English Part N am e qty. N o. English Part N am e qty.
1D ecorating board forfront panel(optiona l)
1 25 Transform er 1
2Front panel(three typesin a ll,optiona l)
1 26A ir sensitive detectingbox(optiona l)
6
3 A ir filte r assem bly 2 27A ir sensitive detectingpanel(optiona l)
1
4 D isp lay p iece 1 28C over for a ir sensitivedetecting(optiona l)
1
5D isp lay e lectrica l contro lbox
1 29 Tem perature sensor 1
6 LED 1 30 Tem perature sensor 1
7 Supporter for front panel 2 31 C onnecting w ire for LED 1
8 C over for front panel 1 32A ir sensitive d isp layp iece(optiona l)
1
9 Sw ing louver 1 33E lectrica l contro l boxw ith a ir sensitive d isp lay(optiona l)
3
10 C onnecting po le 2 34A ir sensitive d isp laypanel(optiona l)
1
11 A ir lead ing vane 10 35C onnectingw ire(optiona l)
1
12 A ir lead ing p lectrum 2 36 Pow er supply cord 1
13 W ater co llecting tray 1 37 Evaporator 1
14 Stepping m otor 1 38H older for tem peraturesensor
1
15 D ra in hose 1 39 M otor cover 1
16 C over for screw 3 40 Indoor fan m otor 1
17 Front panel 1 41 Bottom enclosure 1
18C over for e lectrica lcontro l box
1 42 P ipe fixed p la te 1 1
19 C onnecting cab le c lip 1 43 M ounting p la te 1
20 Spring p iece 2 44 P ipe fixed p la te 2 1
21 Term ina l b lock 1 45 Indoor un it fan 1
22 M ain contro l board 1 46 O il bearing 1
23 E lectrica l contro l box 1 47 R ubber bear support 1
24 Pow er supply cord c lip 2
39
Exploded Views and Parts List
Indoor unit AUS-24H53R230T*(Da)
40
Exploded Views and Parts List
Indoor unit AUS-24H53R230T*(Da)
N o . E n g lis h P a rt N a m e q ty . N o . E n g lis h P a rt N a m e q ty .
1D is p la y e le c tr ic a l c o n tro lb o x (o p tio n a l)
1 2 5In d o o r u n it te rm in a lb lo c k
2
2A ir s e n s it ive d is p la yP C B (o p tio n a l)
1 2 6R o o m te m p e ra tu res e n s o r
1
3A ir s e n s it ive d is p la yp ie c e (o p tio n a l)
1 2 7C o ve r o f e le c tr ic a lc o n tro l b o x
1
4D is p la y e le c tr ic a l c o n tro lb o x (o p tio n a l)
1 2 8 E le c tr ic a l c o n tro l b o x 1
5 In d o o r d is p la y p a n e l 1 2 9 In d o o r fa n m o to r 1
6 D is p la y p ie c e 1 3 0L e ft ru b b e r s h o c ka b s o rp tive b a s e
1
7C o n n e c tin g w ire fo rd is p la y P C B
1 3 1R ig h t ru b b e r s h o c ka b s o rp tive b a s e
1
8C o n n e c tin g w ire fo rd is p la y P C B
1 3 2 M o to r in s ta llin g b o a rd 1
9 C o n n e c tin g c a b le c lip 1 3 3 P ip e f ixe d p la te 1
1 0 S te p p in g m o to r 1 3 4 M o u n tin g p la te 1
1 1 W a te r c o lle c tin g tra y 1 3 5 B o tto m e n c lo s u re 1
1 2 D ra in c a p 1 3 6A ir s e n s it ived e te c tin g (o p tio n a l)
1
1 3 D ra in h o s e 1 3 7 E va p o ra to r 1
1 4 C o n n e c tin g b a r 3 3 8 In d o o r u n it fa n 1
1 5L e ft a n d r ig h t a ir le a d in gva n e
1 5 3 9 O il b e a r in g 1
1 6 S w in g lo u ve r 1 4 0 R u b b e r s u p p o rt fo r m o to r 1
1 7
P h o tic a c c e le ra n t f ilte ra s s e m b ly /s te r ilized e o d o riza tio n s ta ticf ilte r(o p tio n a l)
1 4 1 F a n m o to r c a p a c ito r 1
1 8 E n c lo s u re 1 4 2 M a in c o n tro l b o a rd 1
1 9 S c re w c o ve r 1 4 3 T ra n s fo rm e r 1
2 0 A ir f ilte r 1 4 4 P ip e te m p e ra tu re s e n s o r 1
2 1 F ro n t p a n e l b ra c k e t 3
2 2F ro n t p a n e l( th re e typ e sfo r o p tio n )
1
2 3D e c o ra te b o a rd fo r f ro n tp a n e l o f T s e r ie s(o p tio n a l)
1
2 4 P o w e r s u p p ly c o rd 2
41
42
Exploded Views and Parts List
Outdoor unit
12
34
56
78
9
10 11
12 28 29
16
17
18
19 20 21 22 23 24 25 26 27
13
14 15
30
31
AUS-09H53R120L*(Db) AUS-12H53R120L*(Da) AUS-12H53R120D*(De)
AUS-09H53R120P*(Db) AUS-12H53R120P*(Da) AUS-18H53R120D*(Da)
43
Exploded Views and Parts List
Outdoor unit
No. English Part Name qty. No. English Part Name qty.
1 air outlet grille 1 28 module board assembly 1
2 fan screw nut M6(left revolve) 1 29 sieve capacitance 1
3 left handle 1 30 filter 1
4 front panel 1 31 sieve board assembly 1
5 outdoor fan 1
6 partition assembly 1
7 top panel 1
8 panel connector 1
9 back cover 1
10 right back side board 1
11outdoor electrical control boxcover
1
12 condenser 1
13 electrical install board 1
14 oudoor unit terminal block 1
15 Power supply cord clip 1
16 outdoor fan motor supporter 1
17 four way valve 1
18 outdoor fan motor 1
19 capillary 1
20 1/4 high pressure value 1
21 valve board 1
22 1/2 low pressure value 1
23 compressor terminal cover 1
24 compressor 1
25 compressor screw 3
26 compressor feets 3
27 back board 1
AUS-09H53R120L*(Db) AUS-12H53R120L*(Da) AUS-12H53R120D*(De)
AUS-09H53R120P*(Db) AUS-12H53R120P*(Da) AUS-18H53R120D*(Da)
44
Exploded Views and Parts List
Outdoor unit AUS-18H53R220D*(Da)
5
2427
26
25
22
17
23
21
32
19
30
31 29
28
20
18
16
1514
13
12
11
10
7
6
5
4
9
83
2
1
45
Exploded Views and Parts List
Outdoor unit AUS-18H53R220D*(Da)
No. English Part Name qty. No. English Part Name qty.
1 Air outlet grille 1 26 Four way valve component 1
2 Left front plate 1 27 Suction pipe assembly 1
3 Axial flow fan blade 1 28 1/2 low pressure on-off valve 1
4 Right front plate 1 291/4 high pressure on-offvalve
1
5 Handle 2 30 Compressor 1
6 Top cover 1 31 Valve board 1
7 Condenser 1 32 Back board 1
8Outdoor fan motor supporterassembly
1
9 Outdoor fan motor 1
10 Module board assembly 1
11 Electrical control box assembly 1
12 Temperature sensor 1
13 Partition board assembly 1
14 Tube supporter 1
15 Partition connect board 1
16 Oil tank fixture 1
17 Fan motor capacitor 1
18 Power supply board assembly 1
19 Outdoor termianl block 1
20 Cable fixed clip 1
21 Left back board assembly 1
22 Reator 1
23 Right handle 1
24 Right back board assembly 1
25 Capillary assembly 1
Outdoor unit
Exploded Views and Parts List
46
AUS-24H53R230T*(Da)
Exploded Views and Parts List
Outdoor unit
47
No. English Part Name Quantity No. English Part Name
1 Right front plate 1 28 Rubber shock absorption
2 Left front plate 1
3 Air outlet grille 1
4 Top cover 1
5 Outdoor unit fan 1
6 Outdoor fan motor 1
7 Outdoor fan motor supporter 1
8 Terminal cover cushion 1
9 Compressor terminal cover 1
10 Condenser 1
11 Partition 1
12 Left back side plate 1
13 Capacitor for compressor 1
14 Capacitor fixing clip 1
15 Fan motor capacitor 1
16 Right back side plate 1
17 Handle 2
18 Electrical install board 1
19 Power supply cord fixing 1
20 Outdoor unit terminal block 1
21 Capillary assembly 1
22 Four way valve 1
AUS-24H53R230T*(Da)
Wiring Diagrams
Indoor unit
48
AUS-09H53R120L*(Db)AUS-12H53R120D*(De)
AUS-18H53R220D*(Da)
Note:requirement the LIGHT WAVE,NEGATIVE ION and COMPRESSOR HEATER will be canceled
If the wrappage of fan motor is plastic,then no grounded wire.If no
P3
P4
NL
L
2
N
MFMV
P2(BLU)P1(BRN)
CN6-IFAN
P9
CN4-DISP
CN2-TEMP
θ
θ
INDOOR UNIT WIRING DIAGRAMFAN MOTOR POWER
BRN
BLU
YLW/GRN
TERMINAL BLOCK
YLW/GRN
BLU
BRNTO OUTDOOR
UNITELECTRONIC CONTROL
P.C BOARD
ROOM THERMISTOR
PIPE THERMISTOR
REMOTECONTROLLER
RECEIVER&DISPLAYBOARD
CN1-PG
SOURCELOUVER MOTOR
YLW/GRN
P7
P6
TO COMPRESSOR HEATER
TRANSFORMER
TRAN OUT
TRAN IN
CN8
CN7
COMPRESSOR HEATER
CN3-SWING
LIGHT WAVE NEGATIVE ION
P5 P8 P11 P10LIGHTWAVE ION
NEGATIVE
BLK
CONNECTOR
XLT01-155PE
AUS-12H53R120L*(Da)
will be canceled.
BLK CONNECTOR
P2(BLU)
P1(BRN)UNIT
INDOOR UNIT WIRING DIAGRAM
BLU
BRN
YLW/GRN
YLW/GRN
LOUVER
ELECTRONIC CONTROLP.C BOARD
ROOM THERMISTOR
PIPE THERMISTOR
FAN MOTOR
REMOTECONTROLLER
RECEIVER
TERMINAL BLOCK
SOURCEPOWER
TO OUTDOOR
CN3-SWING
CN5
NL
2
L
N
MFMV
CN6CN1-PG
CNW1
θ
θ
CN2
MOTOR
P9
TEMP
RECEIVE
DISPLAYBOARD
NEGATIVEIONWAVE
LIGHTP10P11P6P5
NEGATIVE IONLIGHT WAVE
Note: If the wrappage of fan motor is plastic,then no grounded wire. If not require the light wave,negative ion,
XLT01-196PE
P12
AUS-24H53R230T*(Da)
MVMF
2
L
N
CN2-SWING CN10-IFAN
CN3-DISP
CN5-HV
STATIC DUST CATCHER
CN-DISP
CN-BG
XLT01-274E
P7 P8
CN6-QM1
CN-BG
INDOOR UNIT WIRING DIAGRAM
ELECTRONIC CONTROLP.C BOARD
NEGATIVE IONFAN MOTOR MOTOR
LOUVER
YLW/GRN
REMOTECONTROLLER
TERMINAL BLOCK
TO OUTDOOR
UNIT
YLW/GRN
BLU
BRN
RECEIVER&DISPLAYBOARD
TRANSFORMER
AIR QUALITY DETECTOR
AIR QUALITY DISPLAY
3
CONNECTOR
BLKP6
P10P9
TO COMPRESSOR HEATER
P3
P4
YLW/GRN
BLU
BRN
POWERSOURCE
LN
P2(ACN)
P1(ACL)
CN1-TEMP
PIPE THERMISTOR
ROOM THERMISTOR
θ
θ
TRANS OUTTRANS IN
CN9 CN8
LIGHT WAVE
P11 P12
Note: COMPRESSOR HEATER, LIGHT WAVE, STATIC DUST CATCHER, NEGATIVE ION,AIR QUALITY DETECTOR BOARDAND AIR QUALITY DISPLAY are optional. If not require they can be cancelled.
Wiring Diagrams
49
Indoor unitAUS-09H53R120P*(Db)
L
MV MF
N
2
N
CN4-PGCN2-SWING CN10-IFAN
L
CN3-DISP
CN5-HV
STATIC DUST CATCHER
CN-DISP
CN-BG
XLT01-255PE
P7
CN6-QM
CN-BG
INDOOR UNIT WIRING DIAGRAM
SOURCEPOWER
ELECTRONIC CONTROLP.C BOARD
NEGATIVE
FAN MOTORMOTORLOUVER
YLW/GRN
REMOTECONTROLLER
TERMINAL BLOCK
TO OUTDOOR
UNIT
BRN
BLU
YLW/GRN
BLU
BRN
RECEIVER&DISPLAYBOARD
TRANSFORMER
AIR QUALITY DETECTOR
AIR QUALITY DISPLAY
WAVELIGHT
ION
P1(AC-L)
P2(AC-N)
YLW/GRN
P4
P3
CONNECTOR
BLKP6
P12P11
P9 P10
CN8CN9TRANS IN TRANS OUT
P8
CN1-TEMP
θ
θ
ROOM THERMISTOR
PIPE THERMISTOR
TO COMPRESSOR HEATER
Note: COMPRESSOR HEATER, LIGHT WAVE, STATIC DUST CATCHER, NEGATIVE ION,AIR QUALITY DETECTOR BOARDAND AIR QUALITY DISPLAY are optional. If ot require they can be cancelled.
WHT
YLW/GRN
SIG
3
L
MV MF
N
2
N
CN-PGCN-STM
TRANS1
CN-IFAN
AC-N
R/PT
θ
θ
L
CN-DISP
CN-ES
STATIC DUST CATCHER
CN-DISP
CN-BG
XLT01-267PE
FL FL-N
TRANS2CN-QM
CN-BG
INDOOR UNIT WIRING DIAGRAM
SOURCEPOWER
ELECTRONIC CONTROLP.C BOARD
ROOM THERMISTOR
PIPE THERMISTOR
NEGATIVE
FAN MOTORMOTORLOUVER
YLW/GRNREMOTE
CONTROLLER
TERMINAL BLOCK
TO OUTDOORUNIT
BRN
BLU
YLW/GRN
BLU
BRN
RECEIVER&DISPLAYBOARD
TRANSFORMER
AIR QUALITY TEST
AIR QUALITY DISPLAY
L-IN
AUXHEATER
HEAT AC-N
ION
Note: COMPRESSOR HEATER, LIGHT WAVE, STATIC DUST CATCHER, NEGATIVE ION,AIR QUALITY DETECTOR BOARDAND AIR QUALITY DISPLAY are optional. If ot require they can be cancelled.
AUS-18H53R120D*(Da)
Note:requirement the LIGHT WAVE,NEGATIVE ION and COMPRESSOR HEATER will be canceled
If the wrappage of fan motor is plastic,then no grounded wire.If no
P3
P4
NL
L
2
N
MFMV
P2(BLU)P1(BRN)
CN6-IFAN
P9
CN4-DISP
CN2-TEMP
θ
θ
INDOOR UNIT WIRING DIAGRAMFAN MOTOR POWER
BRN
BLU
YLW/GRN
TERMINAL BLOCK
YLW/GRNBLU
BRNTO OUTDOOR
UNITELECTRONIC CONTROL
P.C BOARD
ROOM THERMISTOR
PIPE THERMISTOR
REMOTECONTROLLER
RECEIVER&DISPLAYBOARD
CN1-PG
SOURCELOUVER MOTOR
YLW/GRN
TRANSFORMER
TRAN OUT
TRAN IN
CN8
CN7
CN3-SWING
LIGHT WAVE NEGATIVE ION
P5 P8 P11 P10LIGHTWAVE ION
NEGATIVE
BLK
CONNECTOR
XLT01-250PE
AUS-09H53R120P*(Db5) AUS-12H53R120P*(Da)AUS 12H53R120P*(Da4)
AUS-09H53R120P*(Db) AUS-09H53R120P*(Db5)
AUS-12H53R120P*(Da) AUS 12H53R120P*(Da4) Or
AUS-18H53R120C*(Da)
Outdoor unit
Wiring Diagrams
AUS-09H53R120L*(Db)
AUS-12H53R120D*(De)
AUS-09H53R120P*(Db)
ON COMPRESSORON PCB
S(W)
C(T)RU
V
W C(W)
R(V)S(U)
MCSOLENOIDE FAN MOTOR
P15
ELECTRONIC CONTROLP.C BOARD
BLK
CONNECTOR
COIL
CN7
P2
P1
N
2
L
P6
P5
BLU
YLW/GRNTO INDOOR UNIT
CONDENSER HEATER
P14
P5 L REACTORP10 P3 ACIN GRY
POWER FACTOR CORRECTION
DCOUT+P1RED
BLK
CN7P2 DCOUT-
P.C.BOARD
CN2
YLW/GRN
P3
P8
CN1
P7
P4 ACIN
CN1
P9
BLK RED
BLU
CN5
P
P4
MFU V
WHT
EXHAUST THERMISTOR
CONDITIONSTMPERATURE
PIPE THERMISTOR
θ
CN2
CN14
CN4P6 L
θ θ
REDBLU
WN
CN5
MODULE BOARD
OUTDOOR UNIT WIRING DIAGRAM
YLW/GRN
COMPRESSOR MOTOR
COMPRESSOR HEATER
BRN
XLT02-75E
Note:COMPRESSOR HEATER,CONDENSER HEATER,SOLENOIDE COIL are optionalIf not require they can be cancelled.
YLW/GR
N
50
AUS-09H53R120P*(Db5)
AUS-12H53R120P*(Da)AUS 12H53R120P*(Da4)
P CN506
CN508
CN521
W
θθ
CN509
θ
VU
MF
CN522
CN518
STF-L
GND
L
N
L-IN
N-IN
STF-N
MC
RECTIFIER
CN515
N
4
CN507CN504CN505
CN501
CN502
CN5032
XLT02-132E
TO
INDOOR
UNIT
ELECTRONIC CONTROL
P.C BOARDMODULE BOARD
REACTOR
COMPRESSOR MOTORFAN MOTOR
YLW/GRNYLW/GRN
BRN
BLU
BLU
WHT
BLU
WHT
BRN
RED
BLU
WHTRED
RED
RECTIFIER
PIPE
THE
RMISTOR
EXHAU
ST
THERMIS
TOR
CONDITI
ONS
TMPERAT
URE
BLU RED WHT
MAGNETIC CORE
OUTDOOR UNIT WIRING DIAGRAM
WHT
YLW/GRN
YLW/GRN
4-WAY VALVE COIL
CN510
ELECTRON BULGE VALVE
Note:The 4-WAY VALVE COIL and ELECTRON BULGE VALVE are optional, if not required,they can be cancelled.
INDUCTION
Or
AUS 12H53R120P*(Da4)
AUS-09H53R120P*(Db) AUS-12H53R120P*(Da)
AUS-09H53R120P*(Db5)
Outdoor unit
Wiring Diagrams
AUS-18H53R220D*(Da)
ON COMPRESSORON PCB
S(W)
C(T)RU
V
W C(W)
R(V)S(U)
MCSOLENOIDE FAN MOTOR
P15
ELECTRONIC CONTROLP.C BOARD
BLK
CONNECTOR
COIL
CN7
P2
P1
N
2
L
P6
P5
BRN
BLUYLW/GRN
TO INDOOR UNIT
CONDENSER HEATER
P14
P5 L REACTORP10 P3 ACIN GRY
POWER FACTOR CORRECTION
DCOUT+P1RED
BLK
CN7P2 DCOUT-
P.C.BOARD
CN2
YLW/GRN
P3
P8
CN1
P7
P4 ACIN
CN1
P9
BLK RED
BLU
CN5
P
P4
MFU V
WHT
EXHAUST THERMISTOR
CONDITIONSTMPERATURE
PIPE THERMISTOR
θ
CN2
CN14
CN4P6 L
θ θ
REDBLU
WN
CN5
MODULE BOARD
OUTDOOR UNIT WIRING DIAGRAM
YLW/GRN
COMPRESSOR MOTOR
COMPRESSOR HEATER B
COMPRESSOR HEATER A
BRN
CN8
KCOMPRESSORPROTECTOR
XLT02-100E
YLW/GRN
Note: COMPRESSOR HEATER, COMPRESSOR PROTECTOR, LIGHT WAVE, are optional. If not require they can be cancelled.According to ineoor unit diagram choose compressor heater A or B.
SOLENOIDE COIL, CONDENSER HEATER
51
AUS-18H53R120D*(Da)
AUS-12H53R120L*(Da)
ON COMPRESSORON PCB
S(W)
C(T)RU
V
W C(W)
R(V)S(U)
MCSOLENOIDE
FAN MOTOR
P8
ELECTRONIC CONTROLP.C BOARD
BLK
CONNECTOR
COIL
P2(BLU)
P1(BRN)
N
2
L
P4(GND)
P3(BLK)
BLU
YLW/GRNTO INDOOR UNIT
P7
REACTOR
P5
BRN
CN2-FAN
YLW/GRN
P6
BLU
CN4
P3
MF
U V
WHT
EXHAUST THERMISTOR
CONDITION STMPERATURE
PIPE THERMISTOR
θ
CN1
θθ
REDBLU
WP4
CN1
MODULE BOARD
OUTDOOR UNIT WIRING DIAGRAM
YLW/GRN
COMPRESSOR MOTOR
BRN
P9 P10
HEATERCONDENSER
P14
P16
N -
P +RED
BLK
P5(L) P6(L)
BLK
REDP1(DC OUT +)
P2(DC OUT -)
P15
P13
XLT02-97E
TERMINAL BLOCK
YLW/GRN
MIDDLE
TERMINAL
PROTECTOR
COMPRESSOR
K
CN11
Note:COMPRESSOR HEATER,CONDENSER HEATER,SOLENOIDE COIL are optional If not require they can be cancelled.
AUS-24H53R230T*(Da)
AUS-18H53R120C*(Da)
DCIN-P102DCIN+ DCOUT-
P103P101DCOUT+
CBOARDCAPACITOR
P104
NPP32P31
AC_LAC_N
COILSOLENOID
P30P28
COMPRESSORHEATER
P27 P29
+- + -
XLT02-131E
BRN
HEATER
COMPRESSOR MOTOR
YLW/GRN
OUTDOOR UNIT WIRING DIAGRAM
MODULE BOARD
P35 W
BLU RED
P34
CN25
CONDITIONS
TMPERATURE
EXHAUST THERMISTOR
WHT
VU
MF
P36
CN21
P26
CN31
P25
YLW/GRN
CN29
REACTORP33
P31
CONDENSER
TO INDOOR UNIT
YLW/GRN
BLU
P23
P24
L
2
N
P21
P22
CONNECTOR
BLK
ELECTRONIC CONTROLP.C BOARD
P32
FAN MOTOR
MC
S(U)R(V)
C(W)W
VU R
C(T)
S(W)
ON PCB ON COMPRESSOR
TERMINAL BLOCK
θ
θ
θ
PIPE THERMISTOR
Note: CONDENSER HEATER 、COMPRESSOR HEATER and SOLENOID COIL are optional, If no requirement they can be canceled.