Hisense QD25XU00 User Manual

1

Version: 1.1

Hisense Corporation

2

MODEL:

+AST-09UW4RXE**00B

+AST-24UW4RBB**00B

AST-18UW4RXS**01

+AST-12UW4RXE**00B

+AST-09UW4RVE**00

AST-24UW4RBT**01

+AST-18UW4RBA**00A

+AST-12UW4RVE**00

+AST-09UW4RXU**00

+AST-24UW4RDB**00A

+AST-18UW4RXA**00

+AST-12UW4RXU**00

+AST-09UW4RVE**00A

+AST-24UW4RBB**00

+AST-09UW4RXV**00

+AST-12UW4RVE**00A

AS-09UW4RYR**01A

+AST-18UW4RXA**00A

AS-12UW4RYR**01A

+AST-12UW4RXV**00

Note: “ ** ” mean code of Front Panel (See in 4-1 .Product Pictures).

3

Model comparison table：

Category

Factory model

Model in

Set

Silentium Pro

+AST-09UW4RXU**00

QD25XU00

Silentium Pro

+AST-12UW4RXU**00

QD35XU00

Energy Pro

+AST-09UW4RXV**00

QE25XV00

Energy Pro

+AST-12UW4RXV**00

QE35XV00

Energy

+AST-09UW4RXE**00B

TQ25XE0C

Energy

+AST-12UW4RXE**00B

TQ35XE0C

Energy

+AST-18UW4RBA**00A

TQ50BA0B

Energy

+AST-24UW4RDB**00A

TQ70DB0B

New Confort

+AST-09UW4RVE**00A

DJ25VE0A

New Confort

+AST-12UW4RVE**00A

DJ35VE0A

New Confort

+AST-18UW4RXA**00A

DJ50XA0A

New Confort

+AST-24UW4RBB**00B

DJ70BB0B

Mini Apple Pie

+AST-09UW4RVE**00

TG25VE00

Mini Apple Pie

+AST-12UW4RVE**00

TG35VE00

Mini Apple Pie

+AST-18UW4RXA**00

TG50XA00

Mini Apple Pie

+AST-24UW4RBB**00

TG70BB00

Easy Smart/

Wings/Cozy

AS-09UW4RYR**01A

CA25YR1A/ KB25YR1A/

KG25YR1A

Easy Smart/

Wings/Cozy

AS-12UW4RYR**01A

CA35YR1A/ KB35YR1A/

KG35YR1A

Easy Smart/

Wings/Cozy

AST-18UW4RXS**01

CA50XS1A/ KB50XS1A/

KG50YR1A

Easy Smart/

Wings/Cozy

AST-24UW4RBT**01

CA70BT1A/ KB70BT1A/

KG70YR1A

4

Contents

1. Safety Considerations ................................................................................................................................5

2. Product Specifications............................................................................................................................. 13

3. Name of Split type conditioner introduce ............................................................................................. 27

4. Pro duct Picture and Drawing ................................................................................................................ 28

4-1. Product Pictures ............................................................................................................................ 28

4-2. Product dimensions ...................................................................................................................... 31

5. Installation Instruction ............................................................................................................................. 35

5-1. Main Tools for Installation and Maintenance ............................................................................ 35

5-2. Installation Flow Diagram............................................................................................................. 36

5-3. Installation Place and Condition.................................................................................................. 37

5-4. Electric Wiring Diagram ................................................................................................................ 40

5-5. Refrigerant Flow System .............................................................................................................. 43

5-6. Air Purging and Leakage Test..................................................................................................... 44

5-7. Test Running .................................................................................................................................. 45

6. Function Operation .................................................................................................................................. 46

6-1. Operation Range (cooling and heating） .................................................................................. 46

6-2. Remote Controller Operation & Function .................................................................................. 47

6-3. Special Function Instruction ........................................................................................................ 56

6-4. Performance Data ......................................................................................................................... 57

7. Electrical Characteristics ........................................................................................................................ 59

7-1. Print Circuit Board (Indoor & Outdoor)....................................................................................... 59

7-2. Fan Motor ....................................................................................................................................... 66

7-3. Temperature Sensor ..................................................................................................................... 67

7-4. Compressor .................................................................................................................................... 71

7-5. Electric Reactor ............................................................................................................................. 71

7-6. Room Card Control, Fire Protection, ON/OFF Function (Optional) ...................................... 72

7-7. Wiring Remote Controller............................................................................................................. 79

8.Trouble S hooting ....................................................................................................................................... 80

8-1. Error Code Table ........................................................................................................................... 80

8-2. Test the jumper terminals ............................................................................................................ 92

8-3. Trouble Diagnosis of Protection .................................................................................................. 92

8-4. Trouble Diagnosis of Compressor .............................................................................................. 94

8-5. Trouble Diagnosis of Electric Filter Board ................................................................................. 94

8-6. Trouble Diagnosis of Electric Communication .......................................................................... 95

5

8-7. Diagnosis and Solution................................................................................................................. 96

1. Safety Considerations

IMPORTANT!
Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service
person, it is an important part of your job to install or service the system, so it operates safely and
efficiently.

For safe installation and trouble-free operation, you must:

● Carefully read this instruction booklet before beginning.

● Follow each installation or repair step exactly as shown.

● Observe all local, state, and national electrical codes.

● Pay close attention to all warning and caution notices given in this manual.

This symbol refers to a hazard or unsafe practice which can result in severe

personal injury or death.

This symbol refers to a hazard or unsafe practice which can result in personal

injury or product or property damage.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you
require help for a special problem, contact our sales/service outlet or your certified dealer for
additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service,
including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A

QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

● Do not supply power to the unit until all wiring and tubing are completed or reconnected and

checked.

● Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram

6

and these instructions when wiring. Improper connections and inadequate grounding can cause
accidental injury or death.

● Ground the unit following local electrical codes.

● Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible

fire hazard.

When Transporting

Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and
bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on
the air conditioner can cut your fingers.

When Installing

● In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to
construct a strong wood or metal frame to provide added support.

● In a Room

Properly insulate any tubing run inside a room to prevent“sweating” that can cause dripping and
water damage to walls and floors.

● In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor
unit. This prevents water damage and abnormal vibration.

● In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

● In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

△ Use the flare method for connecting tubing.
△ Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting

them, then tighten the nut with a torque wrench for a leak free connection.
△ Check carefully for leaks before starting the test run.

When Servicing

△ Turn the power OFF at the main power box (mains) before opening the unit to check or repair
electrical parts and wiring.

△ Keep your fingers and clothing away from any moving parts.
△ Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring

have been left inside the unit being serviced.

Others

△ Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped
refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.

△ Confirm upon completing installation that no refrigerant gas is leaking. If escaped gas comes in
contact with a stove, gas water heater, electric room heater or other heat source, it can produce
dangerously toxic gas.

NOTE:

The figure、size and param eter of the product m ay not be identical with the service manual, please

take the actual product as the standard.

7

Precautions for using R32 refrigerant

The basic installation work procedures are the same as the conventional refrigerant
(R22 or R410A). However, pay attention to the following points:

1. Transport of equipment containing flammable refrigerants Compliance with the transport

regulations

2. Marking of equipment using signs Compliance with local regulations

3. Disposal of equipment using flammable refrigerants Compliance with national regulations

4. Storage of equipment/appliances The storage of equipment should be in accordance with the

manufacturer's instructions.

5. Storage of packed (unsold) equipment Storage package protection should be constructed such

that mechanical damage to the equipment inside the package will not cause a leak of the
refrigerant charge.
The maximum number of pieces of equipment permitted to be stored together will be
determined by local regulations.

6. Information on servicing

6-1 Checks to the area
Prior to beginning work on systems containing flammable refrigerants, safety checks are
necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the
following precautions shall be complied with prior to conducting work on the system.
6-2 Work procedure
Work shall be undertaken under a controlled procedure so as to minimize the risk of flammab le
gas or vapour being present while the work is being performed.
6-3 General work area
All maintenance staff and others working in the local area shall be instructed on the nature of
work being carried out. Work in confined spaces shall be avoided.
The area around the workspace shall be sectioned off. Ensure that the conditions within the
area have been made safe by control of flammable material.
6-4 Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to
ensure the technician is aware of potentially flammable atmospheres.
Ensure that the leak detection equipment being used is suitable for use with flammable
refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
6-5 Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated parts,
appropriate fire extinguishing equipment shall be available to hand.
Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
6-6 No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any
pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in
such a manner that it may lead to the risk of fire or explosion.
All possible ignition sources, including cigarette smoking, should be kept sufficiently far away
from the site of installation, repairing, removing and disposal, during which flammable refrigerant
can possibly be released to the surrounding space.
Prior to work taking place, the area around the equipment is to be surveyed to make sure that
there are no flammable hazards or ignition risks. “No Smoking” signs shall be displayed.
6-7 Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking into the
system or conducting any hot work.

8

A degree of ventilation shall continue during the period that the work is carried out.
The ventilation should safely disperse any released refrigerant and preferably expel it externally
into the atmosphere.
6-8 Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and to the
correct specification.
At all times the manufacturer's maintenance and service guidelines shall be followed. If in
doubt consult the manufacturer's technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
– The charge size is in accordance with the room size within which the refrigerant containing
parts are installed;
– The ventilation machinery and outlets are operating adequately and are not obstructed;
– If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant;
– Marking to the equipment continues to be visible and legible. Markings and signs that are
illegible shall be corrected;
– Refrigeration pipe or components are installed in a position where they are unlikely to be
exposed to any substance which may corrode refrigerant containing components, unless the
components are constructed of materials which are inherently resistant to being corroded or are
suitably protected against being so corroded.
6-9 Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and
component inspection procedures.
If a fault exists that could compromise safety, then no electrical supply shall be connected to
the circuit until it is satisfactorily dealt with.
If the fault cannot be corrected immediately but it is necessary to continue operation, an
adequate temporary solution shall be used.
This shall be reported to the owner of the equipment so all parties are advised. Initial safety
checks shall include:
– That capacitors are discharged: this shall be done in a safe manner to avoid possibility of
sparking;
– That there no live electrical components and wiring are exposed while charging, recovering or
purging the system;
– That there is continuity of earth bonding.

7. Repairs to sealed components

During repairs to sealed components, all electrical supplies shall be disconnected from the
equipment being worked upon prior to any removal of sealed covers, etc.
If it is absolutely necessary to have an electrical supply to equipment during servicing, then a
permanently operating form of leak detection shall be located at the most critical point to warn of
a potentially hazardous situation.
Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected.
This shall include damage to cables, excessive number of connections, terminals not made to
original specification, damage to seals, incorrect fitting of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such that they no longer serve the
purpose of preventing the ingress of flammable atmospheres.
Replacement parts shall be in accordance with the manufacturer's specifications.

9

NOTE:
The use of silicon sealant may inhibit the effectiveness of some types of leak detection
equipment. Intrinsically safe components do not have to be isolated prior to working on them.

8. Repair to intrinsically safe components

Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that
this will not exceed the permissible voltage and current permitted for the equipment in use.
Intrinsically safe components are the only types that can be worked on while live in the
presence of a flammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the manufacturer.
Other parts may result in the ignition of refrigerant in the atmosphere from a leak.

9. Cabling

Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental effects.
The check shall also take into account the effects of aging or continual vibration from sources
such as compressors or fans.

10.Detection of flammable refrigerants

Under no circumstances shall potential sources of ignition be used in the searching for or
detection of refrigerant leaks.
A halide torch (or any other detector using a naked flame) shall not be used.

11.Leak detection methods

The following leak detection methods are deemed acceptable for systems containing flammab le
refrigerants:
– Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may
not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a
refrigerant-free area.)
– Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant
used.
– Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall
be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximu m)
is confirmed.
– Leak detection fluids are suitable for use with most refrigerants but the use of detergents
containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the
copper pipe-work.
– If a leak is suspected, all naked flames shall be removed/ extinguished.
– If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be
recovered from the system, or isolated (by means of shut off valves) in a part of the system remote
from the leak.
– Oxygen free nitrogen (OFN) shall then be purged through the system both before and during
the brazing process.

12.Removal and evacuation

When breaking into the refrigerant circuit to make repairs – or for any other purpose –
conventional procedures shall be used.
However, it is important that best practice is followed since flammability is a consideration.
The following procedure shall be adhered to:
– Remove refrigerant;
– Purge the circuit with inert gas;
– Evacuate;

10

– Purge again with inert gas;
– Open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery cylinders.
The system shall be “flushed” with OFN to render the unit safe.
This process may need to be repeated several times.
Compressed air or oxygen shall not be used for this task.
Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to
fill until the working pressure is achieved, then venting to
atmosphere, and finally pulling down to a vacuum.
This process shall be repeated until no refrigerant is within the system. When the final OFN
charge is used, the system shall be vented down to atmospheric
pressure to enable work to take place.
This operation is absolutely vital if brazing operations on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is
ventilation available.

13.Charging procedures

In addition to conventional charging procedures, the following requirements shall be followed:
– Ensure that contamination of different refrigerants does not occur when using charging
equipment.
– Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in
them.
– Cylinders shall be kept upright.
– Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
– Label the system when charging is complete (if not already).
– Extreme care shall be taken not to overfill the refrigeration system.
Prior to recharging the system it shall be pressure tested with OFN.
The system shall be leak tested on completion of charging but prior to commissioning.
A follow up leak test shall be carried out prior to leaving the site.

14.Decommissioning

Before carrying out this procedure, it is essential that the technician is completely familiar with
the equipment and all its detail.
It is recommended good practice that all refrigerants are recovered safely.
Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis
is required prior to re-use of reclaimed refrigerant. It is essential
that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure ensure that:
– Mechanical handling equipment is available, if required, for handling refrigerant cylinders;
– All personal protective equipment is available and being used correctly;
– The recovery process is supervised at all times by a competent person;
– Recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various
parts of the system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer's
instructions.

11

h) Do not overfill cylinders. (No more than 80 % volume liquid charge).
I ) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j ) When the cylinders have been filled correctly and the process completed, make sure that
the cylinders and the equipment are removed from site promptly and all isolation valves on the
equipment are closed off.
k) Recovered refrigerant shall not be charged into another refrigeration system unless it has
been cleaned and checked.

15.Labelling

Equipment shall be labelled stating that it has been de-commissioned and emptied of
refrigerant.
The label shall be dated and signed.
Ensure that there are labels on the equipment stating the equipment contains flammable
refrigerant.

16.Recovery

When removing refrigerant from a system, either for servicing or decommissioning, it is
recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery
cylinders are employed.
Ensure that the correct number of cylinders for holding the total system charge is available.
All cylinders to be used are designated for the recovered refrigerant and labelled for that
refrigerant (i.e. special cylinders for the recovery of refrigerant).
Cylinders shall be complete with pressure relief valve and associated shut -off valves in good
working order.
Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions concerning
the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.
In addition, a set of calibrated weighing scales shall be available and in good working order.
Hoses shall be complete with leak-free disconnect couplings and in good condition.
Before using the recovery machine, check that it is in satisfactory working order, has been
properly maintained and that any associated electrical components are sealed to prevent ignition in
the event of a refrigerant release.
Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery
cylinder, and the relevant Waste Transfer Note arranged.
Do not mix refrigerants in recovery units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have been evacuated
to an acceptable level to make certain that flammable refrigerant does not remain within the
lubricant.
The evacuation process shall be carried out prior to returning the compressor to the suppliers.
Only electric heating to the compressor body shall be employed to accelerate this process.
When oil is drained from a system, it shall be carried out safely.
When moving or relocating the air conditioner, consult experienced service technicians for
disconnection and reinstallation of the unit.
Do not place any other electrical products or household belongings under indoor unit or outdoor
unit. Condensation dripping from the unit might get them wet, and may cause damage or
malfunction of your property.
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.

12

The appliance shall be stored in a room without continuously operating ignition sources(for
example, open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.
To keep ventilation openings clear of obstruction.
The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specified for operation.
The appliance shall be stored in a room without continuously operating open flames (for
example an operating gas appliance) and ignition sources (for example an operating electric heater).
Any person who is involved with working on or breaking into a refrigerant circuit should hold a
current valid certificate from an industry-accredited assessment authority, which authorized their
competence to handle refrigerants safely in accordance with an industry recognized assessment
specification.
Servicing shall only be performed as recommended by the equipment manufacturer.
Maintenance and repair requiring the assistance of other skilled personnel shall be carried out
under the supervision of the person competent in the use of flammable refrigerants.
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
Appliance shall be installed, operated and stored in a room with a floor area larger than 10
m2.
The installation of pipe-work shall be kept to a room with a floor area larger than 10 m2.
The pipe-work shall be compliance with national gas regulations. The maximum refrigerant
charge amount is 2.5 kg.
Mechanical connectors used indoors shall comply with ISO 14903. When mechanical
connectors are reused indoors, sealing parts shall be renewed.
When flared joints are reused indoors, the flare part shall be re-fabricated.
The installation of pipe-work shall be kept to a minimum.
Mechanical connections shall be accessible for maintenance purposes.

The indoor unit shall only be connected to outdoor units suitable for the same refrigerant.

The unit is a partial unit air conditioner, complying with partial unit requirements of the
International Standard, and must only be connected to other units that have been confirmed as
complying to corresponding partial unit requirements.

Explanation of symbols displayed on the indoor unit or outdoor unit.

WARNING

This symbol shows that this appliance uses a
flammable refrigerant.
If the refrigerant is leaked and exposed to an external
ignition source, there is a risk of fire.

CAUTION

This symbol shows that the operation manual should
be read carefully.

CAUTION

This symbol shows that a service personnel should be
handling this equipment with reference to the
installation manual.

CAUTION

This symbol shows that information is available such
as
the operating manual or installation manual.

13

2. Product Specifications

Note: “**” mean code of Front Panel(relate pictures can check in content 4- 1).

Model No.

+AST-09UW4RXE**00B

+AST-12UW4RXE**00B

+AST-18UW4RBA**00A

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

2600

3500/3500

5000/5000

Heating Capacity

W

3000

4100/3200

5600/4000

Rated Input-Cooling

W

550

795

1280

Rated Input-Heating

W

715

1050

1400

Moisture Removal

L/h

0.9

1.2

2

Air Circulation

High m3/h

600

620

1000

EER for Cooling

W/W

8.5

4.4/8.5

3.90/8.1

COP for Heating

W/W

4.6

3.9/4.6

4.0/4.6

Energy Class

Cooling

A+++

A+++

A++

Energy Class

Heating

A++

A++

A++

Refrigerant

R32

R32

R32

Refrigerant charge
volume （5M）

g

910

1030

1220

Additional ref. Volume

g

20

20

20

Indoor Unit Noise
Level

High(dB (A))

56

56
60

Outdoor Unit Noise
Level

dB (A)

60

62
65

Power Supply

Voltage, Frequency,
Phase

V

220~240V,50Hz,1P

220-240V~,50Hz,1P

220~240V,50Hz,1P

Rated Current

Cooling (A)

2.5

3.5

5.7

Heating (A)

3.2

4.6

6.3

System pressures in
cooling rated
conditions

Max suction pressure

MPa

1.6

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Rotary

Compressor Model
No.

/

KSM98D32ULZ

KSM98D32ULZ

GTD130UKQA8JT6

Compressor MFG

/

GMCC

GMCC

Hitachi

14

Indoor fan motor

Model No. / ZWA108D42B

ZWA108D42B

K1B310496

Brand / WOLONG

WOLONG

WOLONG

outdoor fan motor

Model / ZWA228D44B

ZWA228D44B

DG13Z2D-04

Brand / WOLONG

WOLONG

Broad-ocean

Connecting Pipe
Diameter

/

Liquid Pipe

inch

1/4

1/4

1/4

Gas Pipe

inch

3/8

3/8

1/2

Cooling Setting
Temperature Range

℃

16~30

16~30

16~30

Heating Setting
Temperature Range

℃

16~30

16~30

16~30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

-15~43

Heating Operating
Temperature Range

℃

-15~24

-15~24

-15~24

Cooling speed

High
（r/min）

1100

1150

1150

Mid（r/min）

940

1000

990

Low
（r/min）

800

870

830

Heating speed

High
（r/min）

1100

1150

1150

Mid（r/min）

940

1000

990

Low
（r/min）

800

870

830

Features

Display on Front
Panel

/

LED

LED

LED

LCD Wireless
Remote Controller

/

Yes

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Yes

Washable PP Filter

/

Yes

Yes

Yes

24 Hours Timer / Yes

Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Yes

Sleep Operation

/

Yes

Yes

Yes

Smart Function / Yes

Yes

Yes

Super Function / Yes

Yes

Yes

15

Auto Restart / Yes

Yes

Yes

Dimmer / Yes

Yes

Yes

Other

Net Dimensions
W x H x D (mm)

Indoor Unit

850×270×210

905×270×210

1014×315×231

Outdoor Unit

810X280X585

810X280X585

860X 310X667

Net Weight (Kg)

Indoor Unit

8.5

8.5

12

Outdoor Unit

37

37

43

Packing Dimensions
W x H x D (mm)

Indoor Unit

900×260×335

900×260×335

1066X390X315

Outdoor Unit

780×315×530

940×385×630

995 X420X720

Gross Weight (Kg)

Indoor Unit

11

11

15

Outdoor Unit

40

41

49

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,

but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,
but they are very close, if you need the accurate data, you can consult the product manager.

Model No.

+AST-24UW4RDB**00A

+AST-09UW4RVE**00A

+AST-09UW4RVE**00

+AST-12UW4RVE**00A

+AST-12UW4RVE**00

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

7000

2600/2600

3500/3500

Heating Capacity

W

7500

2800/2400

4000/3300

Rated Input-Cooling

W

2000

735

1000

Rated Input-Heating

W

2200

680

1025

Moisture Removal

L/h

2.4

0.9

1.2

Air Circulation

High m3/h

1100

550

600

EER for Cooling

W/W

7.9

3.54/6.1

3.5/6.1

COP for Heating

W/W

4.6

4.12/4.0

3.9/4.0

Energy Class

Cooling

A++

A++

A++

Energy Class

Heating

A++

A+

A+

Refrigerant

R32

R32

R32

Refrigerant charge
volume （5M）

g

1700

590

760

Additional ref. Volume

g

30

20

20

Indoor Unit Noise
Level

High(dB (A))

63

56

56

Outdoor Unit Noise
Level

dB (A)

69

63

63

Power Supply

16

Voltage, Frequency,
Phase

V

220~240V,50Hz,1P

220-240V~,50Hz,1P

220-240V~,50Hz,1P

Rated Current

Cooling (A)

8.6

3.3

4.4

Heating (A)

9.7

3.1

4.5

System pressures in
cooling rated
conditions

Max suction pressure

MPa

1.6

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Rotary

Compressor Model
No.

/

GTL232UDPC9AU1LB

KSN98D32UEZ

KSN98D32UEZ

Compressor MFG

/

HIGHLY

GMCC

GMCC

Indoor fan motor

Model No. / K1B310497

DG13G1-16

DG13G1-16

Brand / Broad-ocean

weiling

weiling

outdoor fan motor

Model / DG13Z2D-01

ZWA138D08A

ZWA138D08A

Brand / Broad-ocean

Wolong

Wolong

Connecting Pipe Diameter

Liquid Pipe

inch

3/8

1/4

1/4

Gas Pipe

inch

5/8

3/8

3/8

Cooling Setting
Temperature Range

℃

16~30

16~30

16~30

Heating Setting
Temperature Range

℃

16~30

16~30

16~30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

-15~43

Heating Operating
Temperature Range

℃

-15~24

-15~24

-15~24

Cooling speed

High
（r/min）

1200

1100

1150

Mid（r/min）

1040

940

990

Low
（r/min）

880

800

800

Heating speed

High
（r/min）

1200

1100

1150

Mid（r/min）

1040

940

990

Low
（r/min）

880

800

800

Features

Display on Front
Panel

/

LED

LED

LED

17

LCD Wireless
Remote Controller

/

Yes

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Yes

Washable PP Filter

/

Yes

Yes

Yes

24 Hours Timer / Yes

Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Yes

Sleep Operation

/

Yes

Yes

Yes

Smart Function / Yes

Yes

Yes

Super Function / Yes

Yes

Yes

Auto Restart / Yes

Yes

Yes

Dimmer / Yes

Yes

Yes

Other

Net Dimensions
W x H x D (mm)

Indoor Unit

1185X314X231

815×270×210

815×270×210

Outdoor Unit

884X365X793

715×240×486

715 x 240 x 482

Net Weight (Kg)

Indoor Unit

13

8.5

8.5

Outdoor Unit

60

26

27

Packing Dimensions
W x H x D (mm)

Indoor Unit

1236X390X315

870×335×265

870×335×265

Outdoor Unit

1050X500X890

830×315×530

900x335x530

Gross Weight (Kg)

Indoor Unit

15.5

10.5

11

Outdoor Unit

65

29

30

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,
but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,

but they are very close, if you need the accurate data, you can consult the product manager.

Model No.

+AST-18UW4RXA**00A

+AST-18UW4RXA**00

+AST-24UW4RBB**00B

+AST-24UW4RBB**00

AST-09UW4RYR**01A

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

5000/5000

7000/7000

2600

Heating Capacity

W

5600/4700

7100/5300

2700

Rated Input-Cooling

W

1540

2230

855

Rated Input-Heating

W

1550

2240

700

18

Moisture Removal

L/h

2

2.5

0.9

Air Circulation

High m3/h

1000

1100

550

EER for Cooling

W/W

3.25/6.10

3.14/6.1

6.1

COP for Heating

W/W

3.61/4.0

3.17/4.0

4.0

Energy Class

Cooling

A++

A++

A++

Energy Class

Heating

A+

A+

A+

Refrigerant

R32

R32

R32

Refrigerant charge
volume （5M）

g

1200

1440

460

Additional ref. Volume

g

20

20

20

Indoor Unit Noise
Level

High(dB (A))

60

63

56

Outdoor Unit Noise
Level

dB (A)

65

64

62

Power Supply

Voltage, Frequency,
Phase

V

220-240V~,50Hz,1P

220-240V~,50Hz,1P

220-240V~,50Hz,1P

Rated Current

Cooling (A)

6.9

9.9

3.9

Heating (A) 7 9.9

3.1

System pressures in
cooling rated
conditions

Max suction pressure

MPa

1.6

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Rotary

Compressor Model
No.

/

GTD150RDPA8JTA

GTL232UDPC9AU1LB

DS089MJA

Compressor MFG

/

Hatichi

Hitachi

LG

Indoor fan motor

Model No. / DG13G2-07

K1B310497

DG13G1D-03

Brand

/

weiling,Broad-ocean,LT

Broad-ocean

芝浦

outdoor fan motor

Model / K1B310479

DG13Z2D-04

DG13Z1D-02

Brand / Broad-ocean,Olong

Broad-ocean

WOLONG,weiling

Connecting Pipe Diameter

Liquid Pipe

inch

1/4

3/8

1/4

Gas Pipe

inch

1/2

5/8

3/8

Cooling Setting
Temperature Range

℃

16~30

16~30

16~30

Heating Setting
Temperature Range

℃

16~30

16~30

16~30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

-15~43

19

Heating Operating
Temperature Range

℃

-15~24

-15~24

-15~24

Cooling speed

High
（r/min）

1200

1200

1200

Mid（r/min）

1040

1040

1000

Low
（r/min）

880

880

800

Heating speed

High
（r/min）

1200

1200

1200

Mid（r/min）

1040

1040

1000

Low
（r/min）

880

880

800

Features

Display on Front
Panel

/

LED

LED

LED

LCD Wireless
Remote Controller

/

Yes

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Yes

Washable PP Filter

/

Yes

Yes

Yes

24 Hours Timer / Yes

Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Yes

Sleep Operation

/

Yes

Yes

Yes

Smart Function / Yes

Yes

Yes

Super Function / Yes

Yes

Yes

Auto Restart / Yes

Yes

Yes

Dimmer / Yes

Yes

Yes

Other

Net Dimensions
W x H x D (mm)

Indoor Unit

915X315X229

1087X315X229

790X255X200

Outdoor Unit

810X280X585

860X 310X667

660×240×483

Net Weight (Kg)

Indoor Unit

12

13

7.1

Outdoor Unit

38

48

22

Packing Dimensions
W x H x D (mm)

Indoor Unit

1000×390×315

1170X390X315

850X320X260

Outdoor Unit

940×385×630

995 X420X720

780×315×530

Gross Weight (Kg)

Indoor Unit

14

15.5

8.6

Outdoor Unit

42

52

25

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,

20

but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,

but they are very close, if you need the accurate data, you can consult the product manager.

Model No.

AS-12UW4RYR**01A

AST-18UW4RXS**01

AST-24UW4RBT**01

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

3400

5000

6500

Heating Capacity

W

3800

5600

7100

Rated Input-Cooling

W

1140

1540

2060

Rated Input-Heating

W

1050

1550

2150

Moisture Removal

L/h

1.2

1.75

1.6

Air Circulation

High m3/h

550

950

1100

EER for Cooling

W/W

6.10

6.1

COP for Heating

W/W

4.0

4

Energy Class

Cooling

A++

A

A++

Energy Class

Heating

A+

A

A+

Refrigerant

R32

R32

R32

Refrigerant charge
volume （5M）

g

620

1150

1300

Additional ref. Volume

g

20

20

30

Indoor Unit Noise
Level

High(dB (A))

56

59

63

Outdoor Unit Noise
Level

dB (A)

62

65

64

Power Supply

Voltage, Frequency,
Phase

V

220-240V~,50Hz,1P

220-240V~,50Hz,1P

220-240V~,50Hz,1P

Rated Current

Cooling (A)

5.0

6.9

9.2

Heating (A)

4.7

7

9.6

System pressures in cooling rated conditions

Max suction pressure

MPa

1.6

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Rotary

Compressor Model
No.

/

KSK89D59UEZC

KTN150D42UFZB

GTD186UKQA8JT6

Compressor MFG

/

GMCC

GMCC

Hitachi

Indoor fan motor

Model No. / DG13G1D-03

DG13G2-10

DG13G3D-04

21

Brand

/

芝浦

Broad-

ocean,Welling,LT,Tongde

Welling,Broad-

ocean,Wolong

outdoor fan motor

Model / DG13Z1D-02

K1B310479

ZW511A800002

Brand / WOLONG,weiling

Broad-ocean,Olong

Welling,Broad-

ocean,Wolong

Connecting Pipe Diameter

Liquid Pipe

inch

1/4

1/4

3/8

Gas Pipe

inch

3/8

1/2

5/8

Cooling Setting
Temperature Range

℃

16-30

16-30

16-30

Heating Setting
Temperature Range

℃

16-30

16-30

16-30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

-15~43

Heating Operating
Temperature Range

℃

-15-24

-15-24

-15-24

Cooling speed

High
（r/min）

1250

1200

1200

Mid（r/min）

1000

1000

1000

Low
（r/min）

850

870

850

Heating speed

High
（r/min）

1250

1200

1200

Mid（r/min）

1000

1000

1000

Low
（r/min）

850

870

850

Features

Display on Front
Panel

/

LED

LED

LED

LCD Wireless
Remote Controller

/

Yes

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Yes

Washable PP Filter

/

Yes

Yes

Yes

24 Hours Timer / Yes

Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Yes

Sleep Operation

/

Yes

Yes

Yes

Smart Function / Yes

Yes

Yes

Super Function / Yes

Yes

Yes

Auto Restart / Yes

Yes

Yes

22

Dimmer / Yes

Yes

Yes

Other

Net Dimensions
W x H x D (mm)

Indoor Unit

790X255X200

890*300*220

998×325×225

Outdoor Unit

660X483X240

810*280*585

860×310×667

Net Weight (Kg)

Indoor Unit

7.1

10

11

Outdoor Unit

23

34

42

Packing Dimensions
W x H x D (mm)

Indoor Unit

850×320×260

960*365*300

1060×390×315

Outdoor Unit

780×530×315

935*385*630

995×420×720

Gross Weight (Kg)

Indoor Unit

8.6

12

13.5

Outdoor Unit

26

38.5

46

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,

but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,

but they are very close, if you need the accurate data, you can consult the product manager.

Model No.

AS-09UW4RYR**01A

+AST-09UW4RXU**00

+AST-12UW4RXU**00

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

2600

2600

3500

Heating Capacity

W

2700

3200

4200

Rated Input-Cooling

W

855

540

790

Rated Input-Heating

W

700

720

980

Moisture Removal

L/h

0.9

0.9

1.2

Air Circulation

High m3/h

550

600

650

EER for Cooling

W/W

6.1

9.10

4.43

COP for Heating

W/W

4.0

5.10

4.28

Energy Class

Cooling

A++

A+++

A++

Energy Class

Heating

A+

A+++

A++

Refrigerant

R32

R32

R32

Refrigerant charge
volume （5M）

g

460

860

860

Additional ref. Volume

g

20

20

20

Indoor Unit Noise
Level

High(dB (A))

56

55

56

Outdoor Unit Noise
Level

dB (A)

62

59

61

Power Supply

Voltage, Frequency,
Phase

V

230V,50Hz,1P

220~240V,50Hz,1P

220-240V~,50Hz,1P

Rated Current

Cooling (A)

3.9

2.5

3.5

23

Heating (A)

3.1

3.2

4.3

System pressures in
cooling rated
conditions

Max suction pressure

MPa

1.6

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Rotary

Compressor Model
No.

/

DS089MJA

KSN98D58UFZA

KSN98D58UFZ

Compressor MFG

/

LG

GMCC

GMCC

Indoor fan motor

Model No. / DG13G1D-03

ZWA108D02B

ZWA108D02B

Brand

/

芝浦

WOLONG

WOLONG

outdoor fan motor

Model / DG13Z1D-02

ZWA228D44B

ZWA228D44B

Brand / WOLONG,weiling

WOLONG

WOLONG

Connecting Pipe Diameter
Liquid Pipe

inch

1/4

1/4

1/4

Gas Pipe

inch

3/8

3/8

3/8

Cooling Setting
Temperature Range

℃

16-30

16-30

16-30

Heating Setting
Temperature Range

℃

16-30

16-30

16-30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

-15~43

Heating Operating
Temperature Range

℃

-15-24

-20-24

-20-24

Cooling speed

High
（r/min）

1200

1100

1200

Mid（r/min）

1000

940

1000

Low
（r/min）

800

800

870

Heating speed

High
（r/min）

1200

1100

1200

Mid（r/min）

1000

940

1000

Low
（r/min）

800

800

870

Features

Display on Front
Panel

/

LED

LED

LED

24

LCD Wireless
Remote Controller

/

Yes

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Yes

Washable PP Filter

/

Yes

Yes

Yes

24 Hours Timer / Yes

Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Yes

Sleep Operation

/

Yes

Yes

Yes

Smart Function / Yes

Yes

Yes

Super Function / Yes

Yes

Yes

Auto Restart / Yes

Yes

Yes

Dimmer / Yes

Yes

Yes

Other

Net Dimensions
W x H x D (mm)

Indoor Unit

790×255×200

850×270×208

950×295×298

Outdoor Unit

660×483×240

810×280×585

810×585×280

Net Weight (Kg)

Indoor Unit

7.1

12

13

Outdoor Unit

23

36

37

Packing Dimensions
W x H x D (mm)

Indoor Unit

850×320×260

900×260×335

1060×400×400

Outdoor Unit

780×530×315

940×385×630

940×630×385

Gross Weight (Kg)

Indoor Unit

8.6

14

17.5

Outdoor Unit

26

40

41

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,

but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,

but they are very close, if you need the accurate data, you can consult the product manager.

Model No.

+AST-09UW4RXV**00

+AST-12UW4RXV**00

Type

T1, H/P, INVERTER

T1, H/P, INVERTER

Ratings

Cooling Capacity

W

2600

3500

Heating Capacity

W

3200

4200

Rated Input-Cooling

W

540

790

Rated Input-Heating

W

720

980

Moisture Removal

L/h

0.9

1.2

Air Circulation

High m3/h

600

650

25

EER for Cooling

W/W

9.10

4.43

COP for Heating

W/W

5.10

4.28

Energy Class

Cooling

A+++

A+++

Energy Class

Heating

A+++

A+++

Refrigerant

R32

R32

Refrigerant charge
volume （5M）

g

860

860

Additional ref. Volume

g

20

20

Indoor Unit Noise Level

High(dB
(A))

56

55

Outdoor Unit Noise
Level

dB (A)

59

61

Power Supply

Voltage, Frequency,
Phase

V

220~240V,50Hz,1P

220-240V~,50Hz,1P

Rated Current

Cooling (A)

2.5

3.5

Heating
(A)

3.2

4.3

System pressures in
cooling rated conditions

Max suction pressure

MPa

1.6

1.6

Max discharge
pressure

MPa

4.15

4.15

System

Compressor

Compressor type

/

Rotary

Rotary

Compressor Model No.

/

KSN98D58UFZA

KSN98D58UFZ

Compressor MFG

/

GMCC

GMCC

Indoor fan motor

Model No.

/

ZWA108D02B

ZWA108D02B

Brand

/

WOLONG

WOLONG

outdoor fan motor

Model

/

ZWA108D02B

ZWA108D02B

Brand

/

WOLONG

WOLONG

Indoor fan motor

Cooling speed

High
（r/min）

1100

1200

Mid
（r/min）

940

1000

Low
（r/min）

800

870

Heating speed

High
（r/min）

1100

1200

Mid
（r/min）

940

1000

Low
（r/min）

800

870

26

Connecting Pipe
Diameter

Liquid Pipe

inch

1/4

1/4

Gas Pipe

inch

3/8

3/8

Cooling Setting
Temperature Range

℃

16-30

16-30

Heating Setting
Temperature Range

℃

16-30

16-30

Cooling Operating
Temperature Range

℃

-15~43

-15~43

Heating Operating
Temperature Range

℃

-20-24

-20-24

Features

Display on Front Panel

/

LED

LED

LCD Wireless Remote
Controller

/

Yes

Yes

Removable and
washable Panel

/

Yes

Yes

Washable PP Filter

/

Yes

Yes

24 Hours Timer / Yes

Yes

3 Speed and Auto
Indoor Fan Control

/

Yes

Yes

Vertical Auto Swing
Louver

/

Yes

Yes

Manual Adjustable
Horizontal Swing
Louver

/

Yes

Yes

Sleep Operation

/

Yes

Yes

Smart Function / Yes

Yes

Super Function / Yes

Yes

Auto Restart / Yes

Yes

Dimmer / Yes

Yes

Other

Net Dimensions W
x H x D (mm)

Indoor Unit

850×270×208

950×295×298

Outdoor
Unit

810×280×585

810×585×280

Net Weight (Kg)

Indoor Unit

12

13

Outdoor
Unit

36

36

Packing Dimensions
W x H x D (mm)

Indoor Unit

900×260×335

1060×400×400

Outdoor
Unit

940×385×630

940×630×385

Gross Weight (Kg)

Indoor Unit

14

17.5

Outdoor
Unit

40

40

Note:
1、This table just is for reference, when relate parameters is different from actual specification, please use the parameters

27

of the actual specification which you can get from the product manager.
2、 “**” mean code of Front Panel (relate pictures can check in content 4-1)
3、Net Dimensions（Indoor Unit）depend on the panel you used, the panel is different, the Net Dimensions will be different,
but they are very close, if you need the accurate data, you can consult the product manager.
4、Packing Dimensions （Indoor Unit）depend on the panel you used, the panel is different, the Packing Dimensions will

be different, but they are very close, if you need the accurate data, you can consult the product manager.
5、Gross Weight （Indoor Unit）depend on the panel you used, the panel is different, the Gross Weight will be different,

but they are very close, if you need the accurate data, you can consult the product manager.

3. Name of Split type conditioner introduce

28

4. Pro duct Picture and Drawing

4-1. Product Pictures

Indoor units:

Front Panel

QD

View

Front Panel

QE

View

Front Panel

DJ

View

Front Panel

TG

View

Front Panel

TQ

View

Front Panel

CA

29

View

Front Panel

KA

View

Front Panel

KB

View

Front Panel

KG

View

30

Outdoor Units:

Capacity (Btu)

V（W1M）

Y（W1R）

View

Capacity (Btu)

F（W2M）

D（W5F）

View

Capacity (Btu)

X（W1T）

B（W2T）

View

31

Remote controller:

Model

L1-04

R1-03

R2-01

View

4-2. Product dimensions

Indoor units:

32

Model

W (mm)

H (mm)

D (mm)

+AST-09UW4RXETQ00B

906

270

210

+AST-12UW4RXETQ00B

906

270

210

+AST-18UW4RBATQ00A

1014

315

231

+AST-24UW4RDBTQ00A

1185

315

231

+AST-09UW4RVEDJ00A

815

270

210

+AST-12UW4RVEDJ00A

815

270

210

+AST-18UW4RXADJ00A

915

315

229

+AST-24UW4RBBDJ00B

1087

315

229

+AST-09UW4RVETG00

950

272

207

+AST-12UW4RVETG00

950

272

207

+AST-18UW4RXATG00

1050

320

235

+AST-24UW4RBBTG00

1219

320

235

AS-09UW4RYRCA01A

790

255

200

AS-12UW4RYRCA01A

790

255

200

AST-18UW4RXSCA01

890

300

220

AST-24UW4RBTCA01

998

325

225

+AST-09UW4RXUQD00

950

295

298

+AST-12UW4RXUQD00

950

295

298

+AST-09UW4RXVQE00

883

304

199

+AST-12UW4RXVQE00

883

304

199

AS-09UW4RYRKA01A

798

256

191

AS-12UW4RYRKA01A

798

256

191

AST-18UW4RXSKA01

896

300

214

AST-24UW4RBTKA01

1008

325

217

AS-09UW4RYRKB01A

833

256

203

AS-12UW4RYRKB01A

833

256

203

AST-18UW4RXSKB01

943

300

245

AST-24UW4RBTKB01

1038

325

237

33

Outdoor units:

Model

L1

(mm)

L2

(mm)

L3

(mm)

L4

(mm)

L5

(mm)

L6

(mm)

L7

(mm)

+AST-09UW4RXE**00B

510

310

886

810

280

585

338

+AST-12UW4RXE**00B

510

310

886

810

280

585

338

+AST-18UW4RBA**00A

542

341

935

860

310

667

368

+AST-24UW4RDB**00A

662

390

959

884

365.5

793

414

+AST-09UW4RVE**00A

443

264

776

715

240

486

290

+AST-12UW4RVE**00A

443

264

776

715

240

486

290

+AST-18UW4RXA**00A

510

310

886

810

280

585

338

+AST-24UW4RBB**00B

542

341

935

860

310

667

368

+AST-09UW4RVE**00

443

264

776

715

240

486

290

+AST-12UW4RVE**00

443

264

776

715

240

486

290

34

+AST-18UW4RXA**00

510

310

886

810

280

585

338

+AST-24UW4RBB**00

542

341

935

860

310

667

368

AS-09UW4RYR**01A

443

264

776

715

240

486

290

AS-12UW4RYR**01A

443

264

776

715

240

486

290

AST-18UW4RXS**01

510

310

886

810

280

585

338

AST-24UW4RBT**01

542

341

935

860

310

667

368

+AST-09UW4RXU**00

510

310

886

810

280

585

338

+AST-12UW4RXU**00

510

310

886

810

280

585

338

+AST-09UW4RXV**00

510

310

886

810

280

585

338

+AST-12UW4RXV**00

510

310

886

810

280

585

338

Note: “ ** ” mean code of Front Panel.

35

5. Installation Instruction

To prevent abnorm al heat generation and the possibility of fire, do not place
obstacles, enclosures and grilles in front of or surrounding the air conditioner in
a way that may clock air flow. And, m ore than 1 m eter away from any antenna
or power lines or connecting wires used for TV, radio, telephone, security

system, or intercom. Electrical noise from any of these sources may affect operation.

5-1. Main Tools for Installation and Maintenance

Just for reference, some tools may be different from each pl ace, you can use the s i milar tools to i ns tall the products.

36

5-2. Installation Flow Diagram

Note: this flow is only for reference, the more details please find the manual of Use and installation instructions

37

5-3. Installation Place and Condition

Indoor unit

Avoid:

△ direct sunlight.
△ nearby heat sources that may affect performance of the unit.
△ areas where leakage of flammable gas may be expected.
△ places where large amounts of oil mist exist.

Do:

△ Select an appropriate position from which every corner of the room can be uniformly cooled.
△ Select a location that will hold the weight of the unit.
△ Select a location where tubing and drain hose have the shortest run to the outside. (See a)
△ Allow room for operation and maintenance as well as unrestricted air flow around the unit. (See

b)
△ Install the unit within the maximum elevation difference (H) above or below the outdoor unit
and within a total tubing length (L) from the outdoor unit as detailed (See table 1 and c)

a

b

c

table 1

Capacity

(Btu/h)

Pipe Size

Standard

Length

(m)

Max.

Elevation

B (m)

Max.

Length

A (m)

Min.

Length

A (m)

Suggest

Additional

Refrigerant

(g/m)

GAS

LIQUID

9k

3/8"(Ø9.52)

1/4"(Ø6.35)

5 5 15 3 20

1/2"(Ø12.7)

1/4"(Ø6.35)

5 5 15 3 20

12k

3/8"(Ø9.52)

1/4"(Ø6.35)

5 5 15 3 20

1/2"(Ø12.7)

1/4"(Ø6.35)

5 5 15 3 20

18k

1/2"(Ø12.7)

1/4"(Ø6.35)

5 5 15 3 20

5/8"(Ø15.88)

1/4"(Ø6.35)

5 5 15 3 20

5/8"(Ø15.88)

3/8"(Ø9.52)

5 5 15 3 30

24k

1/2"(Ø12.7)

1/4"(Ø6.35)

5 5 15 3 20

5/8"(Ø15.88)

1/4"(Ø6.35)

5 5 15 3 20

5/8"(Ø15.88)

3/8"(Ø9.52)

5 5 15 3 30

* If total tubing length becomes 7.5 to 15 m (max.), charge additional refrigerant as the table1
for reference. And no additional compressor oil is necessary.
* Min length just is for reference, if too short maybe lead to some abnormal noise.

38

Outdoor unit

Avoid:

△ Heat sources, exhaust fans, etc.
△ Damp, humid or uneven locations.

DO:

△ Choose a place as cool as possible.
△ Choose a place that is well ventilated.
△ Allow enough room around the unit for air intake or exhaust and possible maintenance. (see a1,

b1 & c1)
△ Provide a solid base (level concrete pad, concrete block, 10 × 40 cm beams or equal), a
minimum of 10 cm above ground level to reduce humidity and protect the unit against possible
water damage
and decreased service life.
△ If the installation bag has rubber pads, it is strongly recommended for use to reduce vibration
and noise.
△ Use lug bolts or equal to bolt down unit, reducing vibration and noise.

a1

b1

c1

39

Recommended Wire Diameter:

Capacity size

Wire Diameter(mm2)

Fuse or Circuit Breaker Capacity

5K~12k

1.0(Power wire)/1.0（Connect wire）

3.15A or 5A（indoor）/15A
（outdoor）

18k

2.5(Power wire)/1.5（Connect wire）

3.15A or 5A（indoor）/20A
（outdoor）

22K~30K

2.5(Power wire)/2.5（Connect wire）

3.15A or 5A（indoor）/30A
（outdoor）

40

5-4. Electric Wiring Diagram

Model

Indoor Unit DIAGRAM

Outdoor Unit DIAGRAM

+AST-09UW4RXE**00B

1897944

1853482

+AST-12UW4RXE**00B

1897944

1853482

+AST-18UW4RBA**00A

1897944

1853482

+AST-24UW4RDB**00A

1897944

1853482

+AST-09UW4RVE**00A

1897944

1853482

+AST-12UW4RVE**00A

1897944

1853482

+AST-18UW4RXA**00A

1897944

1853482

+AST-24UW4RBB**00B

1897944

1853482

+AST-09UW4RVE**00

1565467

1853482

+AST-12UW4RVE**00

1565467

1853482

+AST-18UW4RXA**00

1812496

1853482

+AST-24UW4RBB**00

1897944

1853482

AS-09UW4RYR**01A

1897944

1853482

AS-12UW4RYR**01A

1897944

1853482

AST-18UW4RXS**01

1897944

1853482

AST-24UW4RBT**01

1897944

1853482

+AST-09UW4RXU**00

2080141

1853482

+AST-12UW4RXU**00

2080141

1853482

+AST-09UW4RXV**00

1897944

1853482

+AST-12UW4RXV**00

1897944

1853482

Note: “ ** ” mean code of Front Panel.

41

Indoor Unit DIAGRAM:

1897944

1565467

42

Outdoor Model:

1853482

43

5-5. Refrigerant Flow System

NOTE: In different models, the throttle assembly may be Capillary or Electronic expansion valve.

44

5-6. Air Purging and Leakage Test

1. Connect charging hose of manifold valve to charge end of low pressure valve (both high/low
pressure valves must be tightly shut).

2. Connect joint of charging hose to vacuum pump.

3. Fully open the handle of Lo manifold valve.

4. Open the vacuum pump to evacuate. At the beginning, slightly loosen joint nut of low pressure
valve to check if there is air coming inside. (If noise of vacuum pump has been changed, the
reading of multimeter is 0) Then tighten the nut.

5. Keep evacuating for more than 15mins and make sure the reading of multi-meter is -1.0 X105
pa (-76cmHg).

6. Check the vacuum with the gage manifold valve, then close the gage manifold valve, and stop
the vacuum pump.

7. Leave it for one or two minutes. Make sure the pointer of the gage manifold valve remains in
the same position.

8. Remove the gage manifold valve quickly from the service port of the stop valve.
After refrigerant pipes are connected and evacuated, fully open all stop valves on gas and liquid
pipe sides.

9. Opening without fully opening lowers the performance and cause dangerous.

10. Tighten the cap to the service port to obtain the initial status.

11. Retighten the cap

12. Leak test

45

5-7. Test Running

△ Check after Installation

Items to be checked

Possible malfunction

Has it been fixed firmly?

The unit may drop, shake or emit noise.

Have you done the refrigerant leakage test?

It may cause insufficient
cooling(heating)capacity

Is heat insulation sufficient?

It may cause condensation and dripping.

Is water drainage satisfactory?

It may cause condensation and dripping.

Is the voltage in accordance with the rated
voltage marked on the nameplate?

It may cause electric malfunction or damage
the product.

Is the electric wiring and piping connection
installed correctly and securely?

It may cause electric malfunction or damage
the part.

Has the unit been connected to a secure
earth connection?

It may cause electrical leakage.

Is the power cord specified?

It may cause electric malfunction or damage
the part.

Are the inlet and outlet openings blocked?

It may cause insufficient
cooling(heating)capacity.

Is the length of connection pipes and
refrigerant capacity been recorded?

The refrigerant capacity is not accurate.

△Operation Test

1. Before Operation Test
(1)Do not switch on power before installation is finished completely.
(2)Electric wiring must be connected correctly and securely.
(3)Cut-off valves of the connection pipes should be opened.
(4)All the impurities such as scraps and thrums must be cleared from the unit.

2. Operation Test Method
(1)Switch on power and press “ON/OFF” button on the remote controller to start the operation.
(2)Press MODE button to select the COOL, HEAT (Cooling only unit is not available), FAN to check
whether the operation is normal or not.

46

6. Function Operation

6-1. Operation Range (cooling and heating）

Temperature

Cooling operation

Heating operation

Indoor

temperature

Max

32℃

27℃

Min

21℃

7℃

outdoor

temperature

Max

43℃

24℃

Min

*note

-15℃

*Optimum performance will be achieved within these operating temperature. If air conditioner is used
outside of the above conditions, the protective device may trip and stop the appliance.
*For Tropical (T3) Climate condition models, the outdoor max temperature is 55 ℃ instead of 43 ℃
*For some models, can keep cooling at -15 ℃ outdoor ambient via unique design. Normally,
optimum cooling performance will be achieved above 21 ℃. Please consult the merchant to get
more information.
*For some models, can keep heating at -15 ℃ outdoor ambient , some models heat at -20 ℃
outdoor ambient，even heat at lower outdoor ambient
The temperature of some products is allowed beyond the range. In specific situation, please consult
the merchant. When relative humidity is above 80%, if the air conditioner runs in COOLING or DRY
mode with door or window opened for a long time, dew may drip down from the outlet.

47

6-2. Remote Controller Operation & Function

△Remote Controller Instruction

L1-04

48

R2-01

49

R1-03

50

△Function Instruction

1．Major general technical parameters

1-1 Remote receiver distance（front of the air conditioner）: 8 m.

1-2 Remote receiver angle: Less than 60 degrees.

1-3 Temperature control accuracy: ±1℃.

1-4 Time error: Less than 1%.

2. Functions of the controller

2-1 Display panel

I. Control functions of the remote controller (See operating and installation manual)

II. Display of the indoor unit
Information on the screen:

Displaying Scheme:

7-segment tube：Display set temperature or indoor temperature , and display fault code in trouble

indicating. An error code is displayed according to the signal from the indoor CPU. The error code

will flash for 5 seconds while displayed.

Running LED：It is on during operation. It is flashing when the unit defrost.
TIMER LED：When the timer mode works, the LED will be lighted.
Sleep LED：When the sleep mode works, the LED will be lighted, and after 10s, the LED will be off.
Compressor LED：It lights up when compressor is running.
Remote control receiver： This section receives signals from the remote control.

3. Control function

3-1 Emergency switch

If the appliance under the Stand-by state, all the Operation Mode, Air volume, Temperature

Setting , Forced Cooling function will be restored as the last time setting when you press on the

“ON/OFF” button, but lost the Air flow direction setting.

If the appliance was connected to the power at first time, it would operate in the auto mode, It

will keep in stand-by state if you press the “ON/OFF” button during the normal operation.

When the appliance under the Stand-by state, press and hold the emergency switch for 5

seconds, the buzzer rings for 1 times, and it will operate in cooling mode, and the indoor fan speed

is set to high-speed, it running has nothing to do with the room temperature.

When press the emergency switch or receive the signal of the remote control, it will exit this

mode, and it will operate with the corresponding order.

3-2 Operator-machine communication

If the unit has I feel function, when the I feel function is set by the remote control, the room

temperature will depend on the remote control and it will be detected by the sensor of the remote

control. Normally the remote control will automatically transmits a signal at an interval of 10

minutes（only for H1 remote control, it is 9 minutes）, but if the room temperature changed exceed

1℃ in a short period of time, the remote control will transmits a signal within 2 minutes. If the

indoor unit has not received a remote signal within 30 minutes, the ro om temperature will depend

on the room temperature sensor of indoor unit.

51

3-3 Timer function

Real time of Timer setting

(1) The max Timer ranges is 24 hours.
(2) Timer ON/OFF
(3) Timer ON/OFF can be set available in turn.
(4) The Timer accurate more than 97%
(5) The Timer can be adjusted by 1 min increase.
(6) The appliance can be set the ON-Timer and OFF-Timer in the same time, but no any timer

setting indicated.

3-4 Sleep

(1)The Sleep mode can only be set during Cool, Heat and Dry mode.

(2)When the appliance run in the Sleep mode, it will stop after 8 hours operation, then it will
cancel the Sleep setting. When the appliance operate under the OFF-Timer setting condition, if the
OFF-Timer setting less than 8 hours, it will keep the Sleep mode till the OFF-Timer setting; if the
OFF-Timer setting more than 8 hours, it will cancel the OFF-Timer setting after the Sleep mode OFF.

(3)When the Sleep mode is select with Cooling mode, if the room temperature not less than
26℃, the setting temperature will not be adjusted, otherwise, the setting temperature will be raised
by 1℃ per hour, but the max setting temperature raise is 1℃.

(4)When the Sleep mode is select with Heat mode, the setting temperature will be decreased
by 1℃ per hour during the successive 3 hour, but the max setting temperature decrease is 3℃.

(5)When the appliance operate with Sleep mode, the indoor fan run in the LOW setting, and the
air flow direction same as the last setting and the temperature and air flow direction can be adjusted
by user. The Running indicator will be flashed 10 times per 1 Hz frequency, then all the indicators
turn OFF except the Sleep light after 5 min elapse. Those indicators will be recovery when the
temperature or Time setting is adjusted, after the setting, the indicators will be lit in 10 sec, then
turn OFF.

3-5 Automatic run (SMART) mode

When the appliance operates at the smart, the air flow direction can be adjusted.

(1) H/C appliance

a. When the setting temperature is 26℃, the appliance will be ran in the Cool if the room

temperature exceeds 26℃.

b. When the room temperature exceeds 23℃, but below 26℃, it will be ran in the Dry mode(It

will turn in Automatic setting After 3 min LOW air volume running.).

c. When the room temperature exceeds 21℃, but below 23℃, it will be operated in the Fan only,

the air volume is set by LOW and the fan speed can be adjusted

d. When the room temperature is not more than 21℃, it will be operated in Heat mode, and the

temperature is set to 22℃.

(2) Cool only appliance

a. When the room temperature exceeds 26℃, it will be ran in Cool mode, and the temperature

is set to 26℃.

b. When the room temperature exceeds 23℃, but not more than 26℃, it will be operated in the

Dry mode.

c. When the room temperature is not more than 23℃, it will be operated in the Fan only, the air

52

volume is set to LOW and the fan speed can be adjusted

After the appliance start the smart operation, the setting temperature can be adjusted 2 ℃ or

7℃ (based on the remote mode)(the min accuracy is 1℃) up and down base on the automatic

temperature setting, also the presetting temperature of PCB circuit.

In case of the specific operation selected, it could be re-select the other modes after the

compressor ceased for 5 min or the setting temperature changed.

3-6 Cooling-run mode

3-6-1 Outdoor Fan

The outdoor fan’s speeds except the single speed motor can be changed according to outdoor

ambient temperatures.

When operating at a fixed frequency, the outdoor fan is forced to operate at the high speed.

3-6-2 Indoor fan operation

(1）When the indoor fan keep in running condition, this operation state could be controlled by

the remote control with High, Median, Low and Automatic setting.

(2）When the appliance is set Automatic condition in the Cool mode for the first time, the fan

speed will run at Low setting. After that, temperature and fan speed is shown as following.

High

The setting temp.plus 4℃

Median

The setting temp.plus 2℃

Low

Temperature rise

Temperature fall

When the difference between the setting temperature and the room temperature equal to 2℃

or 4℃, the indoor fan speed will keep in current speed.

3-6-3 Air flow direction control

The louver is derived by a step motor, and it swings the horizontal louver automatically. Press

the SW ING button to swing or stop the louver.

During the louver swing in normal operation, the current position will be stored. W hen the

appliance turn off and louver swing automatically to the default position, it will position at the close

position plus 5º.

3-6-4 4-way valve

State: It is interrupted in cooling.

Switchover: When initially powered on for cooling, the 4-way valve is interrupted immediately.

53

When the heating is changed to the cooling, it needs an interval of 50 seconds for the 4 -way valve

to change over from being activated to being interrupted.

3-7 Heating-run mode

3-7-1 Temperature compensation

The temperature compensation is 5º in heating mode. For example, if the set temperature is

25℃ by the remote control, when the room temperature is detected with 31℃, the compressor will

turn off. The main reason is that the hot air is condensed at the top of the house.

Note: The compensation is available only if the room temperature sensor of indo or unit is used
and it is not available when it is subject to the sensor on the remote control.

3-7-2 Indoor fan motor operation

Anti-cold air system:

When the appliance run in Heat mode condition, the indoor fan motor operation is shown as

following to prevent the cooling air come out during the appliance operation.

Temperature fall

Temperature rise

The setting air flow

Low

Stop

35℃

The setting air flow

30℃

Extra -low

25℃

Stop

When the appliance turn in the anti-cold air system in the Extra-LOW (Tapped motor set in

LOW, sic passim) during the compressor operation, the louver swang to the Cool air protection

position, the louver recovers to the original position after the air volume change to LOW. When the

room temperature reach to the setting temperature, the compressor will be turn off, and the air

flow change to LOW, the louver swang to the Cool air protective position to prevent the air drop

into human body directly; when the indoor pipe coil temperature drop continuously, it will turn in

the Cooling air protective system in the Extra-LOW or stop the fan motor.

The indoor fan motor is only controlled by the signal of indoor pipe coil temperature, no matter

the compressor turn ON/OFF, even the appliance turn in Heat mode at first time.

The indoor fan motor will operate according to the different setting(High, Median, Low and

Automatic) by the remote control, but the anti-cold air system is prior.

When the appliance run in the Heat mode with the Automatic setting at first time, the fan speed

will be in the LOW setting, and the operation diagram is shown as following

54

Low

High

MEDIAN

The setting temperature - 2℃

The setting temperature - 4℃

Temperature rise

Temperature fall

When the difference between the setting temperature and the room temperature equal to 2℃

or 4℃, the indoor fan speed will keep in current speed.

3-7-3 Air flow direction control

The horizontal louver is controlled by a step motor, press the SWING button to swing or stop

the louver.

During the louver run in normal operation, the current position will be stored. When the

appliance turn off and louver swing automatically to the default position, it will position at the default

position plus 5º.

4-3-8-4 Outdoor fan

The outdoor fan speeds except single speed motor can be changed according to outdoor ambient

temperatures.

3-7-6 4-way valve

State: It is electrified in heating.

Switchover: When initially powered on for heating, the 4-way valve is activated immediately.

In the change from cooling to heating, it needs an interval of 50 seconds for the 4 -way valve to

change over from being interrupted to being activated.

3-8 The super function (option)

In cooling mode, when you press the SUPER button by remote control, the unit will operate for 15

minutes with the following setting:

a. The set temperature is 16℃;
b. The fan speed with highest speed;
c. The compressor runs with high frequency.

3-9 Dehumidifying mode

The dehumidifying mode is illustrated as follows:

55

Dehumidifying area I: Operation at the frequency in the range (30–60Hz) according to Dt (T indoor

ambient-Test).

Dt(℃)

f(Hz)

0

30

0.5

30

1

40

1.5

50

≥2

60

Dehumidifying area II: The compressor stops for 5 minutes and operators for 5 minutes at the

lowest frequency.

Dehumidifying area III: The compressor stops.

3-10 Fan Only Mode Operation

During the appliance run in this mode, the compressor and outdoor fan stop, the indoor fan

operate under the pre-setting of air volume, and the louver swing, and the indoor fan speed same

as the Heating Mode.

56

6-3. Special Function Instruction

Conditions of anti-freezing prohibition of frequency rising:

Condition 1: in the case of anti-freezing frequency decreasing, the temperature of indoor heat exchanger rises to

“anti-freezing frequency decreasing temperature”.

Condition 2: in normal operation, the temp erature of indoor heat exchanger reaches “anti-freezing prohibition of

frequency rising temperature”.
Either of the above two conditions is met, the product will enter anti-freezing prohibition of frequency rising state.

Anti-freezing prohibition of frequency rising operation: the compressor is kept at the current frequency, which

may decrease according to situations while cannot rise. The outdoor fan runs.

Condition for the end of anti-freezing prohibition of frequency rising state: when the temperature of indoor heat

exchanger rises to “anti-freezing releasing temperature”, the state of anti-freezing prohibition of frequency rising

is released.
Conditions for defrosting:

A: When the heating compressor consecutively runs for 40 minutes (EEPROM setting value at the current

operating mode);

B:If the ambient temperature minus the temperature of coiled pipe is equal to or higher than six degrees

centigrade (EEPROM setting value in the current operating mode);

C:If the temperature of coiled pipe is equal to or lower than minus two degrees centigrade (EEPROM setting

value in the current operating mode);

If the above three conditions are met simultaneously, defrosting begins.
Defrosting actions:

The compressor stops, and the outdoor fan stops after delay of 30 seconds; in 50 seconds the four-way

valve is power off; and in 10 seconds the compressor starts and runs at “defrosting frequency”.
Conditions for ending defrosting:

Defrosting is over if either of the below conditions is met.

A：The accumulated time of defrosting is longer than 12 minutes (EEPROM setting value in the current

operating mode);

B：If the temperature of coiled pipe is equal to or higher than 14 degrees centigrade (EEPROM setting

value in the current operating mode);
Actions of exiting the defrosting state:

The compressor stops, and 50 seconds later the four -way valve opens, and another 10 seconds later the

compressor and outdoor fan restart and begin normal operation.

57

6-4. Performance Data

Temperature charts

95.00%

100.00%

105.00%

110.00%

115.00%

120.00%

125.00%

130.00%

20 25 30 35 40 43

Capacity Ratio

（%）

Outdoor Temp（ ℃）

cooling

0.00

1.00

2.00

3.00

4.00

5.00

6.00

20 25 30 35 40 43

EER

Outdoor Temp（ ℃）

cooling

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

-15 -7 -5 2 7 12

Capacity Ratio

（%）

Outdoor Temp（ ℃）

Heating

Indoor

Temp：
DB 20℃

0.00

0.50

1.00

1.50

2.00

2.50

3.00

-15 -7 -5 2 7 12

COP

Outdoor Temp（ ℃）

Heating

58

0.00

1.00

2.00

3.00

4.00

20 25 30 35 40 43

EER

Outdoor Temp（ ℃）

cooling

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

-15 -7 -5 2 7 12

Capacity Ratio

（%）

Outdoor Temp（ ℃）

Heating

Indoor

Temp：DB

0.00

1.00

2.00

3.00

4.00

-15 -7 -5 2 7 12

COP

Outdoor Temp（℃）

Heating

59

7. Electrical Characteristics

7-1. Print Circuit Board (Indoor & Outdoor)

Model

Indoor Unit

Outdoor Unit

+AST-09UW4RXE**00B

1951838

SD008-160705A

+AST-12UW4RXE**00B

1951838

SD008-160705A

+AST-18UW4RBA**00A

1951838

1878005

+AST-24UW4RDB**00A

1951838

1846941/1924721

+AST-09UW4RVE**00A

1951844

SD008-160705A

+AST-12UW4RVE**00A

1951844

SD008-160705A

+AST-18UW4RXA**00A

1951844

1878005

+AST-24UW4RBB**00B

1951838

1878005

+AST-09UW4RVE**00

1833235

SD008-160705A

+AST-12UW4RVE**00

1833235

SD008-160705A

+AST-18UW4RXA**00

1833235

1878005

+AST-24UW4RBB**00

1951838

1878005

AS-09UW4RYR**01A

2009223

SD008-160705A

AS-12UW4RYR**01A

2009223

SD008-160705A

AST-18UW4RXS**01

1995727

1952498

AST-24UW4RBT**01

1986288

1978975

+AST-09UW4RXU**00

2032199

SD008-180401A

+AST-12UW4RXU**00

2032199

SD008-180401A

+AST-09UW4RXV**00

2009223

SD008-180401A

+AST-12UW4RXV**00

2009223

SD008-180401A

Note: 1、 “ ** ” mean code of Front Panel
2、These colds are not spare parts’ cold, Please don’t use these colds to order spare parts,

60

Model of indoor unit:

1995727

1986288

61

1833235

1951838

62

1951844

2032199

63

2009223

Model of outdoor unit:

1878005/1952498

64

1978975

SD008-160705A

65

1924721

SD008-180401A

66

7-2. Fan Motor

Drawings attached:

DG13G1-16、DG13G2-07

Test in resistance.
TOOL: Multimeter.
Test the resistance of the main winding. The indoor fan motor is fault if the resistance of
main winding 0(short circuit)or∞（open circuit）.
Test in voltage
TOOL: Multimeter.
Insert screwdriver into to rotate indoor fan motor slowly for 1 revolution or over, and measure
voltage “YELLOW” and “GND” on motor. The voltage repeat 0V DC and 5V DC.
Notes:

1) Please don’t hold motor by lead wires.

2) Please don’t plug IN/OUT the motor connecter while po wer ON.

3) Please don’t drop hurl or dump motor against hard material. Malfunction may not be observed at
early stage after such shock. But it may be found later, this type of mishandling void our

warranty.

67

Indoor DC Fan Motor

Outdoor DC Fan Motor

7-3. Temperature Sensor

Parameter table attached:

1. THE PARAMETER OF THE INDOOR COIL AND INDOOR ROOM SENSOR ,THE PARAMETER OF THE
OUTDOOR COIL AND OUTDOOR ENVIRONMENT SENSOR:

（R(0)=15k B(0/100)=3450）

Temperature(℃)

Resistance(k)

Voltage(V)

Temperature(℃)

Resistance(k)

Voltage(V)

-20

38.757

0.58143512

31

4.292

2.715076661

-19

36.844

0.60795346

32

4.137

2.76063657

-18

35.038

0.63530819

33

3.989

2.805589174

-17

33.331

0.66352684

34

3.847

2.850117358

-16

31.719

0.69257720

35

3.711

2.894109636

-15

30.196

0.72246147

36

3.58

2.937788018

-14

28.755

0.75321223

37

3.455

2.980713033

-13

27.392

0.78480857

38

3.335

3.023117961

68

-12

26.103

0.81722911

39

3.219

3.065272268

-11

24.882

0.85051031

40

3.108

3.106725146

-10

23.727

0.88458737

41

3.001

3.147759536

-9

22.632

0.91951536

42

2.899

3.187898487

-8

21.594

0.95527085

43

2.801

3.227439565

-7

20.611

0.99179340

44

2.706

3.266717909

-6

19.678

1.02913875

45

2.615

3.305249514

-5

18.794

1.06721353

46

2.528

3.342947037

-4

17.954

1.10609872

47

2.444

3.380169671

-3

17.158

1.14565549

48

2.363

3.416856492

-2

16.401

1.18599135

49

2.286

3.45247766

-1

15.683

1.22696435

50

2.211

3.487894953

0

15

1.26865672

51

2.139

3.522585993

1

14.351

1.31098658

52

2.07

3.556485356

2

13.734

1.35393437

53

2.003

3.590032381

3

13.148

1.39741342

54

1.939

3.622673675

4

12.589

1.44157386

55

1.877

3.654865988

5

12.058

1.48618720

56

1.818

3.686036427

6

11.553

1.53125563

57

1.76

3.717201166

7

11.071

1.57689691

58

1.705

3.747244673

8

10.613

1.62286005

59

1.652

3.776658768

9

10.176

1.66928515

60

1.6

3.805970149

10

9.76

1.71601615

61

1.551

3.834009923

11

9.363

1.76311968

62

1.503

3.861880963

12

8.985

1.81043663

63

1.457

3.888973616

13

8.624

1.85805887

64

1.413

3.91524643

14

8.279

1.90597205

65

1.37

3.941267388

15

7.951

1.95387327

66

1.328

3.967019291

16

7.637

2.00204130

67

1.289

3.991234935

17

7.337

2.05033368

68

1.25

4.015748031

18

7.051

2.09859271

69

1.213

4.039284017

19

6.778

2.14682606

70

1.177

4.062450215

20

6.516

2.19524793

71

1.142

4.085229093

21

6.267

2.24333597

72

1.109

4.106941536

22

6.028

2.29151689

73

1.076

4.12888601

23

5.8

2.33944954

74

1.045

4.149715216

24

5.581

2.38741691

75

1.015

4.17007359

25

5.372

2.43506494

76

0.986

4.189944134

26

5.172

2.48247664

77

0.957

4.210004953

27

4.981

2.52951096

78

0.93

4.228855721

28

4.797

2.57653834

79

0.904

4.247168554

29

4.622

2.62291710

80

0.878

4.265640683

30

4.453

2.66931854

Note: the AD value in the table is calculated on the basis of the pull-down resistor is 5.1K.

69

2. THE PARAMETER OF OUTDOOR COMPRESSOR TEMPERATURE SENSOR：

R(0)=187.25k B(0100)=3979)

Temperature

(℃)

Resistance(k)

Voltage(V)

Temperature

(℃)

Resistance

(k)

Voltage(V)

-20

542.867

0.06185563

51

19.907

1.273074475

-19

512.839

0.06543004

52

19.148

1.310312934

-18

484.672

0.06917993

53

18.422

1.348029498

-17

458.239

0.07311215

54

17.728

1.386170907

-16

433.423

0.07723358

55

17.065

1.424680494

-15

410.115

0.08155140

56

16.43

1.463624623

-14

388.213

0.08607312

57

15.822

1.502961719

-13

367.625

0.09080590

58

15.241

1.542579738

-12

348.264

0.09575738

59

14.684

1.582573078

-11

330.048

0.10093573

60

14.151

1.622834232

-10

312.904

0.10634837

61

13.64

1.663405088

-9

296.761

0.11200385

62

13.151

1.704175229

-8

281.556

0.11790981

63

12.682

1.745200698

-7

267.227

0.12407536

64

12.233

1.78637104

-6

253.72

0.13050821

65

11.802

1.827760456

-5

240.982

0.13721739

66

11.388

1.869364416

-4

228.965

0.14421140

67

10.992

1.910971223

-3

217.624

0.15149895

68

10.611

1.952788467

-2

206.917

0.15908889

69

10.246

1.994602839

-1

196.805

0.16699001

70

9.896

2.036415908

0

187.25

0.17521257

71

9.559

2.078366648

1

177.957

0.18402550

72

9.236

2.120229484

2

169.186

0.19319719

73

8.925

2.162162162

3

160.903

0.20273937

74

8.627

2.203928178

4

153.179

0.21252789

75

8.341

2.245558418

5

145.685

0.22297275

76

8.065

2.287251934

6

138.696

0.23368340

77

7.8

2.328767123

7

132.086

0.24480509

78

7.546

2.369998606

8

125.833

0.25634646

79

7.301

2.411176512

9

119.916

0.26831655

80

7.065

2.452217815

10

114.315

0.28072493

81

6.843

2.492120501

11

109.01

0.29358432

82

6.624

2.532777116

12

103.984

0.30690352

83

6.414

2.573028606

13

99.222

0.32068816

84

6.212

2.612972641

14

94.708

0.33494897

85

6.017

2.652726847

15

90.427

0.34969710

86

5.829

2.692216328

16

86.366

0.36494000

87

5.648

2.731362468

17

82.512

0.38068793

88

5.474

2.770083102

18

78.854

0.39694585

89

5.306

2.808524698

19

75.381

0.41372093

90

5.144

2.846617549

20

72.082

0.43102355

91

4.988

2.884289108

21

68.948

0.44885674

92

4.837

2.921715219

70

22

65.968

0.46723835

93

4.692

2.958579882

23

63.136

0.48615877

94

4.552

2.995066949

24

60.443

0.50562884

95

4.417

3.031113488

25

57.88

0.52566481

96

4.286

3.066931265

26

55.367

0.54691396

97

4.161

3.10190676

27

52.978

0.56877112

98

4.039

3.13682074

28

50.707

0.59123237

99

3.922

3.171050177

29

48.547

0.61430611

100

3.776

3.214826021

30

46.492

0.63799445

101

3.703

3.237170332

31

44.537

0.66229036

102

3.602

3.268602192

32

42.676

0.68720188

103

3.501

3.300650422

33

40.904

0.71272849

104

3.409

3.33039475

34

39.217

0.73885738

105

3.317

3.360680043

35

37.609

0.76561057

106

3.228

3.390506582

36

36.077

0.79296593

107

3.141

3.420179056

37

34.616

0.82093877

108

3.058

3.448975451

38

33.224

0.84949031

109

2.977

3.477549351

39

31.895

0.87866649

110

2.899

3.505516033

40

30.628

0.90841082

111

2.823

3.533201704

41

29.419

0.93873381

112

2.749

3.56058226

42

28.264

0.96965549

113

2.678

3.587254695

43

27.162

1.00111890

114

2.609

3.613561484

44

26.109

1.03315203

115

2.542

3.639477628

45

25.103

1.06573050

116

2.477

3.664977902

46

24.142

1.09883007

117

2.414

3.6900369

47

23.223

1.13246511

118

2.353

3.714629083

48

22.345

1.16658089

119

2.294

3.738728832

49

21.505

1.20120120

120

2.237

3.762310501

50

20.701

1.23631868

Note: the AD value in the table is calculated on the basis of the pull-down resistor is 6.8K.

71

7-4. Compressor

Drawings attached:

DC
INVERTER

CONTROLLER

&

RU()

SV()
TW()

OVERLOAD PROTECTION

POWER

Test in resistance.

TOOL: Multimeter.

Test the resistance of the winding. The compressor is fault if the resistance of winding 0(short

circuit)or∞（open circuit）

Familiar trouble: 1)Compressor motor lock. 2）Discharge pressure value approaches static pressure

value .3)Compressor motor winding abnormality.

Notes：1）Don’t put a compressor on its side or turn over.

2) Please assembly the compressor in your air conditioner rapidly after removing the plugs. Don’t

place the comp. In air for along time.

3) Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.

4) Warning! In case AC voltage is impressed to compressor, the compressor performance will be

lower because of its rotor magnetic force decreasing.

7-5. Electric Reactor

Drawings attached:

Familiar error:
1）Sound abnormality
2）Insulation resistance disqualification.

L

72

7-6. Room Card Control, Fire Protection, ON/OFF Function (Optional)

7-6-1.Instructions for the function setting of room card control, fire protection, ON/OFF function.

1. Factory setting

ON/OFF function is tacitly approved to be invalid when out of factory while both the room card control and fire protection

functions are valid.

In case of using or cancelling the room card control / fire protection / (ON/OFF) function, use the wire controller to

modify the parameters of indoor unit.

2. Function introduction

1) Room card control: a kind of control mode to control the machine startup & shutdown based on the on & off state of

the room card control port.

2) Fire protection: a kind of control mode to control the machine startup & shutdown based on the on & off state of the fire

protection port.

3) ON/OFF function: a kind of special control mode to achieve the control of indoor unit startup & shutdown based on the

input state of the fire protection port of the indoor unit (no other way can control startup & shutdown) and output the fault

status of indoor unit through OUT INPUT port.

3. Function setting

Fig.1 OUT INPUT Fig.2 short wiring Fig.3 output line

Fig.4 Hardware connection diagram

Pins of the OUT INPUT CN16 socket shown in the electrical wiring diagram of Fig 1 are tacitly approved to be in short

73

circuit state under the factory state (an external short circuit plug shown as Figure 2).
(Illustration: the socket number in circuit is subject to the actual serial number of PCB.)

1) When using the room card control, the user cuts off the short wire shown in Figure 2 and connects the red lines to the

control switch (supplied by user), and the connecting wire should be 22AWG or above specification. The switch is closed

under normal conditions and off under abnormal conditions.

2) When using the fire protection , the user cuts off the short wire shown in Figure 2 and connects the White lines to the

control switch (supplied by user), and the connecting wire should be 22AWG or above specification. The switch is closed

under normal conditions and off under abnormal conditions.

3) When using the ON/OFF function, the user cuts off the short wire shown in Figure 2 and connects the White lines the

ON/OFF control switch (supplied by user), and the connecting wire should be 22AWG or above specification. In normal

conditions, the machine starts once the switch is closed and the machine shuts down once the switch is off.

4 Setting method

This machine defaults that the room card control is effective, which can be switched between the room card control and

ON/OFF function through wire controller. The specific operations are as follows:

Fig. 1

Fig.2 YXE-C01U/ YXE-C02U(E) Fig.3 YXE -D01U(E)

74

Fig.4 YXE-A03U(E)

The EE address number of ON/OFF function is 25：first enter the parameter number 17, and then adjust to the EE address number 25.

Exhibit 1: Built-in EE settings combination

EE DATA

Red Line (1+2)

White Line (2+3)

0

Void

Void

1

Hotel Room Card Control

Void

2

Void

Fire Protection Control

3

Hotel Room Card Control

Fire Protection Control

4

Void

ON/OFF

Reading and writing EE operations through wire remote controller are as follows:

(1) Operations: In any state, hold down both “MODE” button and “ADD.FUNC.” button for 3 seconds to enter read and
write parameters.

Result: The buzzer makes a functional sounds. On display screen, the symbol and the parameter number flash at

the same time.
Note: For YXE-D01U(E), replace “ADD.FUNC.” button with “FUNC” button.
Note: For YXE-A03U(E), replace “ADD.FUNC.” button with “Fan speed” button.

(2) Operations: In a state of that, The symbol and the parameter number flash at the same time，press button or

button。

Result: On display screen, the parameter number increases or decreases by 1 correspondingly (0-25), and the

parameter data changes correspondingly.

(3) Operations: In a state of that, the symbol and the parameter number 17 flash at the same time，press “ENTER”
button to enter the EE reading.

Result: On display screen, the symbol does not flash, and the EE address flashes.

Note: For YXE-A03U(E), replace “ENTER” button with “Timer” button.

(4) Operations: In a state of that, the symbol does not flash, and the EE address flashes, press button or
button.

Result: On display screen, the EE address increases or decreases by 1 (0-255) correspondingly, and the parameter

data changes correspondingly.

75

(5) Operations: In a state of that, the symbol does not flash, and the EE address number 25 flash, press “ENTER”
button to enter the EE writing.

Result: On display screen, the symbol and the EE address number 25 do not flash, and the function code

corresponding to the EE address flashes.
Note: For YXE-A03U(E), replace “ENTER” button with “Timer” button.

(6) Operations: In a state of that, the symbol and the EE address number 25 do not flash, and the function code
corresponding to the EE address flashes, press button or button.

Result: On display screen, the function code corresponding to the EE address increases or decreases by 1.

(7) Operations: In a state of that, the symbol and the EE address number 25 do not flash, and the function code
corresponding to the EE address flashes, press “ENTER” button.

Result: On display screen, the symbol does not flash, and the EE address number 25 flashes to display the

function code of EE after modification.
Note: For YXE-A03U(E), replace “ENTER” button with “Timer” button.

(8) Press “ON/OFF” button or “CANCEL” button to exit.
Note: For YXE-A03U(E), Press “ON/OFF” button to exit.

7-6-2.Instructions for the function setting of room card control, fire protection, ON/OFF function.

1. Factory setting

ON/OFF function is tacitly approved to be invalid when out of factory while both the room card control and fire

protection functions are valid.

In case of using or cancelling the room card control / fire protection / (ON/OFF) function, use the wire controller to

modify the parameters of indoor unit.

2. Function introduction

(1) Room card control: a kind of control mode to control the machine startup & shutdown based on the on & off state

of the room card control port.

(2) Fire protection: a kind of control mode to control the machine startu p & shutdown based on the on & off state of

the fire protection port.

(3) ON/OFF function: a kind of special control mode to achieve the control of indoor unit startup & shutdown based

on the input state of the fire protection port of the indoor unit (no other way can control startup & shutdown) and output

the fault status of indoor unit through OUT INPUT port.

3. Function setting

3.1 Hardware connection

Fig.1 electrical wiring diagram

76

Fig.2 short wiring (old)

Fig.3 main control board

Fig.2 short wiring (new) Fig.3 main control board

Fig.4 output line

3 pins of the OUT INPUT CN16 socket shown in the electrical wiring diagram of Figure 1 are tacitly approved to be

in short circuit state under the factory state (an external short circuit plug shown as Figure 2), and the OUT INPUT

CN16 socket of main control board is shown as Figure 3.
(Illustration: the socket number in circuit is subject to the actual serial number of PCB.)

4) When using the room card control or fire protection , the user cuts off the short wire shown in Figure 2 and connects

the red line and the black line to the control switch (supplied by user), and the connecting wire should be 22AWG

or above specification. The switch is closed under normal conditions and off under abnormal conditions.

5) When using the ON/OFF function, the user cuts off the short wire shown in Figure 2 and connects the black line

and the white line to the ON/OFF control switch (supplied by user), and the connecting wire sho uld be 22AWG or

above specification. In normal conditions, the machine starts once the switch is closed and the machine shuts

down once the switch is off.

77

Fig.5 Hardware connection diagram
Master slave
1、Indoor unit plan:
1）Two indoor units must are the Universal units，and have the ON/OFF function ；
2）Must set ON/OFF function；
2、Set step：
1）Set the indoor unit mode，fan speed ，temp. and flap angle；
2）Use the wire control remote to set ON/OFF function ；
3）Cut the white line，and connect the external controller；
4）Output line connect the external controller；
5）Do the same work to another indoor unit.

78

Master slave connection diagram

3.2 Timing se quence description:

(1) Room card control:

1) Control of room card disconnection: the air conditioner shall be shut down after the room card control signal is

disconnected. In this state, the indoor unit can’t be started. If the user performs starting operation, the wire controller

shall not respond and displays power -off.

2) Control of room card connection: after the short circuit of room card control interface, release power-on

restrictions, the wire controller maintains power-off and the startup & shutdown control is effective.
(2) Fire protection

1) Access to fire protection: the air conditioner shall be shut down after the fire protection signal is disconnected.

In this state, the indoor unit can’t be started. If the user performs starting operation, the wire controller shall not respo nd

and displays power-off.

2) Cancellation of fire protection: after the short circuit of fire protection signal, release power -on restrictions, the

wire controller maintains power -off and the startup & shutdown control is effective.

(3) ON/OFF function

1) In the situation where ON/OFF function is effect, the port is closed and in short circuit, the indoor unit starts;

the indoor unit shuts down once the port is disconnected;

2) Other operation information (such as mode, air speed, air door, etc.) except for startup & shutdown can be set

through the wire controller, remote-controller and WIFI module;

3) In the mode of ON/OFF function, wire controller, remote-controller, WIFI module and room card control cannot

control the machine startup & shutdown, and nor can in the mode of the timing or sleep function.

79

4) There will be 12V signal output when machine fault occurs.

3.3 Relative priorities of instructions

ON/OFF function has the highest priority. The room card control shall be invalid when ON/OFF function is

effective.

The room card control and fire protection can not be selected at the same time, only one can be selected.

7-7. Wiring Remote Controller

Model

Installation Manual

Use And Installation Instructions

YXE-C01U

1813253

1813254

YXE-D01U(E)

1898797

1898796

YXE-C02U(E)

1844538

1844539

YXE-A03U(E)

Not available

1967341

Note: Installation Manual and Use And Installation Instructions are separate documents.

80

8.Trouble Shooting

8-1. Error Code Table

1.Indication on the outdoor unit:

When the unit has the following trouble and the compressor stops running, The LED of outdoor control board

will show the error sequence automatically:

NOTE:

★：

LIGHT O：FLASH 

：

OFF

Error
code

Outdoor Failure
Description

LED1

LED2

LED3

the root cause my be one of the following

Mark description: the lights flash every second for the following faults

Normal

  

Outdoor coil
temperature
sensor in trouble

★  ★

a. the outdoor coil sensor connect loose;
b. the outdoor coil temperature sensor is failure;
c. the outdoor control board is failure

Compressor
exhaust
temperature
sensor in trouble

★





a. the compressor exhaust temperature sensor
connect loose;

b. the compressor exhaust temperature sensor is
failure;

c. the outdoor control board is failure

Communication
failure between the
indoor unit and
outdoor unit





O

a. the communication cable connect loose;
b. the communication cable is failure;
c. the connection between the filter board and the

outdoor control board is incorrect or loose;
d. the connection between the filter board and the
terminal is incorrect or loose;

e. the indoor control board is failure;
f. the PFC board is failure;
g. the power board is failure; h. the outdoor

control board is failure.

Current overload
protection

★

O



a. the fan motor run abnormally;
b. the condenser or and evaporator is dirty;
c. the air inlet and outlet is abnormally

Maximum current
protection

★ O ★

a. the outdoor control board is short circuit;
b. the drive board is short circuit;
c. the other components is short circuit

Communication
trouble between
outdoor unit and
driver



★

★

a. the connection wires connect loose
b. the outdoor board or drive board is failure;

Outdoor EEPROM
in trouble

★ ★ ★

a. he EEPROM chip is loose;
b. the EEPROM chip inserted with opposite

direction;

81

c. the EEPROM chip is failure

Compressor
exhaust
temperature too
high protection



O

★

a. the compressor exhaust temperature sensor is
failure;
b. the refrigerant of the unit is not enough

Outdoor ambient
temperature
sensor in trouble

★

★



a. the outdoor ambient temperature sensor
connect loose;

b. the outdoor ambient temperature sensor is
failure;

c. the outdoor control board is failure

Compressor shell
temperature too
high protection



★

O

a. the compressor exhaust temperature sensor
connect loose

b. the refrigerant of the unit is not enough

Anti-freeze
protection with
cooling or overload
protection with
heating in indoor
unit



O

O

a. the indoor coil temperature sensor connect
loose;

b. the indoor coil temperature sensor is failure;
c. the indoor control board is failure
d. the refrigerant system is abnormal.

Compressor drive
in trouble

O  O

a. the outdoor drive board is failure;
b. the compressor is failure
c. the outdoor control board is failure

Outdoor fan motor
locked rotor
protection

O

O

★

a. the connection of the outdoor fan motor is
loose; b. there are something
block the outdoor fan;

c. the fan motor is failure;
d. the outdoor control board is failure

Outdoor coil anti­overload protection
with cooling

 ★ 

a. the refrigerant is too much;
b. the outdoor fan motor is failure;
c. the outdoor fan is broken;
d. the condenser is dirty;
e. the air inlet and air outlet of the indoor unit and

the outdoor unit is not normally

82

IPM module
protection

 O 

a. The IPM board is failure;
b. The outdoor fan is broken;
c. The outdoor fan motor is failure;
d. The outdoor fan has been blocked ;
e. The condenser is dirty;
f. The outdoor unit has been installed without

standard.

PFC protection

O





a. the PFC is failure;
b. the outdoor drive board is failure

Compressor pre
heating process

O ★ O

it is normal mode in cold weather

Chip in outdoor
board in trouble

★



O

a. Using the wrong drive board;
b. Using the wrong compressor.

AC voltage higher
or lower protection

★

★

O

a. the supply voltage is higher or lower than
normal;

b. the inner supply voltage of the unit is higher or
lower than normal

DC compressor
start failure

O

O



a. the outdoor drive board is failure;
b. the compressor is failure

Outdoor ambient
temperature too
low protection

★

O

O

a、Outdoor ambient temperature too low

Mark description: the lights flash every two seconds for the following faults

Protection against
overheated outdoor
radiator

  

a. Radiator sensors fail
b. Detection circuit of the sensor on the
control panel fails

Protection of the
system against too
high pressure

  

a. The pressure switch fails
b. The pressure detection switch on the control
panel fails
c. The measured value of the system pressure
exceeds the limit

When the compressor is in ope ration:

Mark description: ★：Light：Flash ：Off; the flash cycle is 1S

No.

LED1

LED2

LED3

Reasons for the current operating fre quency

of the compressor is limited

1

  

Normal frequency rising and decreasing, no

limitation

2





★

Frequency decreasing or prohibition of frequency

rising caused by over-current

3  ★

★

Frequency decreasing or prohibition of frequency
rising caused by anti-freezing of refrigeration or

anti-overload in heating

83

4

★  ★

Frequency decreasing or prohibition of frequency
rising caused by too high compressor discharge

temperature

5

Limit to the max operating frequency caused by

too low power voltage

6 ★ ★

★

Operation at fixed frequency (in the case of

capability measuring or compulsory operation at

fixed frequency)

7

  

Protective frequency decreasing against outdoor

overload (overpower, over frequency conversion

rate, over torque, detection of DC under -voltage)

8

★





Frequency decreasing caused by indoor and

outdoor communication fault

9  ★



Frequency decreasing or prohibition of frequency

rising protection against overload of outdoor

coiled pipe

10  ★



Frequency decreasing or prohibition of frequency

rising for power-saving when it is being used

simultaneously with other appliances

2.Indication by the indoor unit:

2.1.The 7-segment tube of the indoor display board will show the error code automatically when the unit has

the following trouble:

Error

code

Power

Timer

Running

Sleep

Remark：★Light o Flash x OFF

1 2 3

4

Content

Remark

The root cause is may be

one of the following

EA

the error code
will display when
the
communication
between display
board and
control board

have in trouble

a. The connection

between the

display board and control
board is loose;
b. The indoor control board

is failure.

c. The wiring of the display

board is failure.

2.2.When the unit has the following trouble and the compressor stops running, press the sleep button on the

remote controller for 4 times in ten seconds and the 7-segment tube of the display board will show the error code as
the following, if two malfunction happened at the same time, it need press the sleep button for 4 times again, the LED

will show the other error code.

Refer to the remote controller which the sleep key can set into 4 differen t combination ways (Hisense's new

design remote controller), when using to check the error codes need exit all the sleep mode first and then press the

sleep button 10 times in ten seconds instead of 4 times.

NOTE: If the troubleshooting inquiry display by 7-segment tube, then the error code will be displayed, otherwise

only the LED of the display board can show.

Error

code

Running

Timer

Sleep

Power

Remark：★Light o Flash x OFF

1 2 3

4

Content

Remark

The root cause is may be one

of the following

84

1 x o x x

The failure for
temperature
sensor of

outdoor coil

a. The outdoor temperature

sensor loose;

b. the outdoor temperature

sensor is failure;

c. The indoor control board is

failure

2

  ★



Compressor
exhaust
temperature
sensor in
trouble

a. the compressor exhaust
temperature sensor connect
loose;

b. the compressor exhaust
temperature sensor is failure;

c. the outdoor control board is
failure

5

★  



IPM module
protection

a. The IPM board is failure;
b. The outdoor fan is broken;
c. The outdoor fan motor is

failure;
d. The outdoor fan has been

blocked ;

e. The condenser is dirty;
f. The outdoor unit has been

installed without standard.

6

★  

★

AC voltage
higher or lower
protection

a. the supply voltage is higher
or lower than normal;
b. the inner supply voltage of
the unit is higher or lower than
normal

7

★

 ★ 

Communication
failure between
the indoor unit
and outdoor
unit

a. the communication cable
connect loose;

b. the communication cable is
failure;

c. the connection between the
filter board and the outdoor
control board is incorrect or
loose;

d. the connection between the
filter board and the terminal is
incorrect or loose;
e. the indoor control board is
failure;

f. the PFC board is failure;
g. the power board is failure;
h. the outdoor control board is

failure.

8

★

 ★ ★

Current
overload
protection

a. the fan motor run abnormally;
b. the condenser and

evaporator is dirty;

85

c. the air inlet and outlet is
abnormally

9

  



Maximum
current
protection

a. the outdoor control board is
short circuit;

b. the drive board is short
circuit;

c. the other components is
short circuit

10

  

★

Communication
trouble
between
outdoor unit
and driver

a. the connection wires connect
loose
b. the outdoor board or drive
board is failure;

11

 ★ 



Outdoor
EEPROM in
trouble

a. the EEPROM chip is loose;
b. the EEPROM chip inserted

with opposite direction;
c. the EEPROM chip is failure

12

 ★ 

★

Outdoor
ambient
temperature
too low

protection

Outdoor ambient temperature

too low

13

★  



Compressor
exhaust
temperature
too high
protection

a. the compressor exhaust
temperature sensor is failure;

b. the refrigerant of the unit is
not enough

14

★  

★

Outdoor
ambient
temperature
sensor in
trouble

a. the outdoor ambient
temperature sensor connect
loose;

b. the outdoor ambient
temperature sensor is failure;

c. the outdoor control board is
failure

15

★ ★ 



Compressor
shell
temperature
too high
protection

a. the compressor exhaust
temperature sensor connect

loose
b. the refrigerant of the unit is

not enough

16

Anti-freeze
protection with
cooling or
overload
protection with
heating in

a. the indoor coil temperature
sensor connect loose;

b. the indoor coil temperature
sensor is failure;

c. the indoor control board is
failure
d. the refrigerant system is
abnormal.

86

17

PFC protection

a. the PFC is failure;
b. the outdoor drive board is

failure

18

DC compressor
start failure

a. the outdoor drive board is
failure;

b. the compressor is failure

19

  



Compressor
drive in trouble

a. the outdoor drive board is
failure;

b. the compressor is failure
c. the outdoor control board is

failure

20

★  



Outdoor fan
motor locked
rotor protection

a. the connection of the outdoor
fan motor is loose;

b. there are something block
the outdoor fan;

c. the fan motor is failure;
d. the outdoor control board is

failure

21

Outdoor coil
anti-overload
protection with
cooling

a. the refrigerant is too much;
b. the outdoor fan motor is

failure;

c. the outdoor fan is broken;
d. the condenser is dirty;
e. the air inlet and air outlet of

the indoor unit and the outdoor
unit is not normally

22

Compressor
pre heating
process

it is normal mode in cold
weather

24

Chip in outdoor
board in trouble

a. Using the wrong drive board;
b. Using the wrong compressor.

26

Overheated

outdoor radiator

a. Radiator sensor fails
b. Detection circuit of the

sensor on the control
panel fails

27

Protection

against too high
system

pressure

a. The pressure switch
fails

b. The pressure detection
switch on the control panel

fails
c. The measured value of

system pressure exceeds
the limit

33 o x x ★

The failure for
temperature
sensor of

indoor room

a. The indoor room temperature
sensor loose;

b. The indoor room temperature
sensor is failure;

87

c. The indoor control board is
failure.

34 o x ★ x

The failure for
temperature
sensor of
indoor coil

temperature

a. The indoor coil temperature
sensor loose;
b. The indoor coil temperature
sensor is failure;
c. The indoor control board is
failure.

36

 ★ 

★

Communication
failure between
the indoor unit
and outdoor
unit

a. the communication cable
connect loose;

b. the communication cable is
failure;

c. the connection between the
filter board and the outdoor
control board is incorrect or
loose;

d. the connection between the
filter board and the terminal is
incorrect or loose;
e. the indoor control board is
failure;

f. the PFC board is failure;
g. the power board is failure;
h. the outdoor control board is

failure.

38 o ★ ★ ★

Indoor
EEPROM

failure

a. The EEPROM chip loose;
b. The indoor control board is

failure

39 o x ★ ★

Indoor fan
motor run

abnormally

a. There are something block
the indoor fan motor;

b. The fan motor cord connect

loose;

c. The fan motor is failure;
d. The indoor control board is

failure

41 ★ ★ o ★

The failure for
Indoor
grounding

protective

The indoor control board is

failure

2.2 LED display

Error

code

Sleep

Timer

Running

Remark：★Light  Flash x OFF

1 2 3

Content

Remark

The root cause is may be one of

the following

0

Normal

88

1

 ★ ★

The failure for
temperature
sensor of

outdoor coil

a. The outdoor temperature sensor

loose;

b. The outdoor temperature sensor

is failure;

c. The indoor control board is

failure

2



★

x

Compressor
exhaust
temperature
sensor in
trouble

a. the compressor exhaust
temperature sensor connect loose;

b. the compressor exhaust
temperature sensor is failure;

c. the outdoor control board is
failure

5

★



x

IPM module
protection

a. The IPM board is failure;
b. The outdoor fan is broken;
c. The outdoor fan motor is failure;
d. The outdoor fan has been

blocked ;

e. The condenser is dirty;
f. The outdoor unit has been

installed without standard.

6

x  x

AC voltage
higher or lower
protection

a. the supply voltage is higher or
lower than normal;

b. the inner supply voltage of the
unit is higher or lower than normal

7

★

★

x

Communication
failure between
the indoor unit
and outdoor
unit

a. the communication cable
connect loose;

b. the communication cable is
failure;

c. the connection between the filter
board and the outdoor control
board is incorrect or loose;

d. the connection between the filter
board and the terminal is incorrect
or loose;

e. the indoor control board is
failure;

f. the PFC board is failure;
g. the power board is failure;
h. the outdoor control board is

failure.

8

Current
overload
protection

a. the fan motor run abnormally;
b. the condenser and evaporator is

dirty;
c. the air inlet and outlet is

abnormally

9

Maximum
current
protection

a. the outdoor control board is
short circuit;

b. the drive board is short circuit;

89

c. the other components is short
circuit

10

★

x

x

Communication
trouble
between
outdoor unit
and driver

a. the connection wires connect
loose
b. the outdoor board or drive

board is failure;

11



x

x

Outdoor
EEPROM in
trouble

a. the EEPROM chip is loose;
b. the EEPROM chip inserted with

opposite direction;
c. the EEPROM chip is failure

12

Outdoor
ambient
temperature
too low

protection

Outdoor ambient temperature too

low

13

 x ★

Compressor
exhaust
temperature
too high
protection

a. the compressor exhaust
temperature sensor is failure;

b. the refrigerant of the unit is not
enough

14

★ ★ 

Outdoor
ambient
temperature
sensor in
trouble

a. the outdoor ambient temperature
sensor connect loose;

b. the outdoor ambient temperature
sensor is failure;
c. the outdoor control board is
failure

15

x



★

Compressor
shell
temperature
too high
protection

a. the compressor exhaust
temperature sensor connect loose

b. the refrigerant of the unit is not
enough

16

★ x ★

Anti-freeze
protection with
cooling or
overload
protection with
heating in

a. the indoor coil temperature
sensor connect loose;

b. the indoor coil temperature
sensor is failure;

c. the indoor control board is failure
d. the refrigerant system is

abnormal.

17

x ★ x

PFC protection

a. the PFC is failure;
b. the outdoor drive board is failure

18

x

★

★

DC compressor
start failure

a. the outdoor drive board is failure;
b. the compressor is failure

90

19

x

★



Compressor
drive in trouble

a. the outdoor drive board is failure;
b. the compressor is failure
c. the outdoor control board is

failure

20

★ x 

Outdoor fan
motor locked
rotor protection

a. the connection of the outdoor fan
motor is loose;

b. there are something block the
outdoor fan;

c. the fan motor is failure;
d. the outdoor control board is

failure

21

x

x



Outdoor coil
anti-overload
protection with
cooling

a. the refrigerant is too much;
b. the outdoor fan motor is failure;
c. the outdoor fan is broken;
d. the condenser is dirty;
e. the air inlet and air outlet of the

indoor unit and the outdoor unit is
not normally

22

Compressor
pre heating
process

it is normal mode in cold weather

24

Chip in outdoor
board in trouble

a. Using the wrong drive board;
b. Using the wrong compressor.

26

Overheated

outdoor radiator

a. Radiator sensor fails
b. Detection circuit of the

sensor on the control panel
fails

27

Protection

against too high

system

pressure

a. The pressure switch fails
b. The pressure detection switch

on the control panel fails
c. The measured value of

system pressure exceeds the
limit

33

★





The failure for
temperature
sensor of

indoor room

d. The indoor room temperature
sensor loose;

e. The indoor room temperature
sensor is failure;
f. The indoor control board is
failure.

34

x





The failure for
temperature
sensor of
indoor coil

temperature

d. The indoor coil temperature

sensor loose;

e. The indoor coil temperature

sensor is failure;

f. The indoor control board is

failure.

36

 ★ 

Communication
failure between

a. the communication cable
connect loose;

91

the indoor unit
and outdoor
unit

b. the communication cable is
failure;

c. the connection between the filter
board and the outdoor control
board is incorrect or loose;
d. the connection between the filter
board and the terminal is incorrect
or loose;

e. the indoor control board is
failure;

f. the PFC board is failure;
g. the power board is failure;
h. the outdoor control board is

failure.

38





x

Indoor
EEPROM

failure

c. The EEPROM chip loose;
d. The indoor control board is

failure

39





★

Indoor fan
motor run

abnormally

a. There are something block the

indoor fan motor;

b. The fan motor cord connect
loose;

c. The fan motor is failure;
d. The indoor control board is

failure

41

x

x

★

The failure for
Indoor
grounding

protective

The indoor control board is failure

The failure is detected when the room temperature sensor broken or shorted over 5 sec.
The failure is detected when the temperature sensor of heater exchange broken or shorted over 5 sec.
The failure is detected when each setting data is not match after the EEPPOM self -check two times.
The failure is occur when the grounding signal is not detected after the appliance power ON.

92

8-2. Test the jumper terminals

Note:

When the whole machine is powered up, if the external unit does not work, to rule out the
communications failures, adopt screening method such as short circuit on the jumper terminals to see if the
external unit can be started normally or similar method.

There are two blue terminals on the outdoor control panel, as shown above.
Application: Short out the terminals, and power up the outdoor unit, then the outdoor unit may run
independently. It can be determined that there is no internal and external communication faults.

When the environment temperature is lower than 18℃, you can't run the unit under the cool mode, but if you need
run the unit at this moment ,such as add the gas or do more test,
at this moment you can use this function,
Under this function, the outdoor motor and compressor will be forced to run until reaching a fixed frequency
(general is 50~55Hz).

8-3. Trouble Diagnosis of Protection

Protection diagnosis of the complete machine (all types of protection during operation, i.e.
under-voltage, over-voltage and overcurrent protection)
Note: List all types of protection that may occur to the complete machine and describe the conditions and

signs of the start, course and end of such protection.

Voltage protection
Protection against AC input over-voltage/under-voltage

1.Conditions for protection against AC inp ut over-voltage/under-voltage:

If the input AC voltage is greater than “protective over-voltage value” or less than “protective under-

voltage value” for five seconds, over-voltage/under-voltage protection tarts.

2.Protection actions against AC input ove r-voltage/under-voltage

The system stops operation.

3. Conditions for ending AC input over-voltage/under-voltage:

If the input AC voltage is lower than “the protective over-voltage value” -10V, or higher than “the

protective under-voltage value” +10V, the over-voltage/under-voltage protection will be released.

Curre nt protection:

1.Protection against over-current

Conditions for over-current protection: if the current is equal to or greater than “current value for starting the

refrigeration current protection (E2 value)” for six seconds, over-current protection starts.

Protection actions against over-current: indoor display screen and outdoor indicator give indications, the

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compressor and outdoor fan stop, but indoor fan runs normally.

Condition for ending over-current protection: when the current drops below “current value for releasing the

refrigeration current protection (E2 value)”, over-current protection will be released.

2.Frequency decreasing for over-current

Conditions for over-current fre quency decreasing: if the current is equal to or greater than “current value for

starting the refrigeration current protective frequency decreasing (E2 value) ”, over-current frequency

decreasing starts.

Over-current frequency decreasing actions: the compressor will decrease frequency at rate of (E2

value)Hz/S. The indoor and outdoor fans run.

Conditions for ending over-current fre quency decreasing: when the current drops below “current value for

starting the refrigeration current protective prohibition of frequency rising (E2 value)”, over-current under-

clocking will be released.

3.Prohibition of frequency increasing of compressor exhausting

Conditions for prohibition of frequency rising of compressor discharge

Condition 1: in the case of frequency decreasing of compressor discharge, the discharge temperature of the

compressor drops below X4℃.
Condition 2: in normal operation, the discharge temperature of compressor reaches X5 ℃.
Either of the above two conditions is met, prohibition of frequency rising of compressor d ischarge begins.

Actions relates to prohibition of frequency rising of compressor discharge: the frequency of compressor

maintains at the current level, which may decrease as the case requires while cannot rise. The indoor and

outdoor fans run.

Condition for ending prohibition of frequency rising of compressor discharge: if the tempe rature of

compressor discharge drops below X6℃, prohibition of frequency rising of compressor discharge will be

released.

4. Prohibition of frequency for anti-overload of outdoor coiled pipe

Condition for anti-overload prohibition of frequency of outdoor coiled pipe: in the case of anti-overload

frequency decreasing of outdoor coiled pipe, anti-overload prohibition of frequency of the unit begins when

the temperature of outdoor coiled pipe drops below “the anti-overload frequency decreasing temperature of

outdoor coiled pipe”.

Actions relates to anti-overload prohibition of frequency of outdoor coiled pipe: the frequency of compressor

maintains at the current level, which may decrease as the case requires while cannot rise. The indoor and

outdoor fans run.

Condition for ending anti-overload prohibition of frequency of outdoor coiled pipe: if the temperature of

outdoor coiled pipe drops below “temperature to release the anti-overload state of outdoor coiled pipe”, anti-

overload prohibition of frequency of outdoor coiled pipe will be released.

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8-4. Trouble Diagnosis of Compressor

Judging the connecting terminals of inverter compressor:

It is impossible to identify terminals U, V and W of inverter compressor with multi -meter. Just connect the
terminals in the same way as the original unit when replacing the compressor. A wrong connection will lead to

reverse and loud noise of the compressor.
Resistance of compressor coil:

Measure the resistance between any two terminals, which are about a few Ohms, three phase s having

the same resistance.

8-5. Trouble Diagnosis of Electric Filter Board

Visual examination: as the circuit is simple, the connection may be checked visually to see whether any

loose or poor connection.

Voltage test: the voltage at the input end shall be the same as the voltage at the output end.

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8-6. Trouble Diagnosis of Electric Communication

Step one: to determine whether the connecting cables and tether cables of indoor/outdoor units are correctly

wired. If not, change wiring order and test connection.
Step two: to determine whether there is loose connection.
Fasten the connection in the case of loose connection and then conduct verification.

Step three: measure the voltage between SI and N with multi-meter and see whether the voltage fluctuates

between 0V and 24V. Please directly replace indoor and outdoor control boards if there are not voltage

fluctuations.

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8-7. Diagnosis and Solution

1.

Does the screen
display normally?

Switch on the
power supply

Is the fuse
(5A/250V) burn?

Are the wires
poorly
connected?

Check the input
voltage and output
voltage correct or not

Indoor control board is fault
Replace it.

No

No

No

No

Does it receive the
remote controller
signal?

Is the remote
controller
setting right?

Check the code

Replace the batteries
Retry remote operation.
If not good,replace
remote controller

Is the remote
controller in good
condition?

Make sure all wires
are connected
correctly

Replace the
display board

Replace the
display board

Replace the
indoor control
board

Yes

Yes

No

Yes

Yes

No

Yes

Yes

Yes

Error code 39
Indoor fan motor trouble

Set the air conditioner

operate in fan mode

Is indoor fan motor

running?

Does fan motor

stop following the

remote controller

order?

Check the connector of

indoor motor connected

tightly or not

Check the each pin to

“GND”pin shorted or not

With power on check

“Vdc”pin to “GND”pin

130Vdc or not;

“Vcc”pin to “GND”pin

15V or not

Indoor control board

faulty and replace it

Replace the indoor

fan motor

DC Fan

Yes

Yes

No

No

No

No

Yes

Yes

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2.

DC Fan test point:

98

3.

Error code 9

Maximum current

protection

The outdoor control

board fault,replace

the board

Compressor

fault,replace the

compressor

Yes

No

Is the windings of the
conpressor right or
not(each winding and
winding to the earth)

99

4.

100

5.

Error code 16 cooling mode

Anti-freeze protection indoor unit

Is indoor heat

exchanger iced up?

Refrigeration system protection,check the

air inlet and outlet of indoor unit

Check the coil

sensor right or not

Change the coil

sensor

Change the indoor

board

no

yes

yes

no

Error code 16 heating mode

Overload protection indoor unite

Is indoor heat

exchanger overheating?

Refrigeration system protection,check the air

inlet and outlet of indoor unit

Check the coil sensor of

indoor unit right or not

Change the indoor

board

Change the coil sensor

no

yes

yes

no

Error 21 (cooling mode)

Outdoor coil anti-overload protection

Is the outdoor condensor

overheating?

Check the coil sensor of

outdoor unit right or not

Change the outdoor control board

Refrigeration system protection,check

the air inlet and outlet of outdoor

unit

Change the coil sensor

yes

no

yes

no

Error code11

Outdoor EEPROM in

trouble

Refix the EEprom

Change the EEprom

Check the EEprom

fixing right or not

no

yes