Page 1
Table of Contents
1. Precaution
2. Part Names And Functions
3. Dimension
4. Refrigerant Cycle Diagram
5. Printed Circuit Board Connector Wiring Diagram of
Outdoor unit
6. Installation Details
7. Operation Characteristics
8. Electronic Function
9. Troubleshooting
10. Disassembly Instructions
SERVICE MANUAL
WARNING
Installation MUST conform with local building codes or, in the absence of local
Ÿ
codes, with th e National Electrical Code NFPA70/ANSI C1-1993 or current
edition and Canadian Electrical Code Part1 C. C.22.1.
The information contained in he manual is intended for use by a qualified service
Ÿ
technician f amiliar voith safety procedures and equipped with the piper tools and
test instruments.
Installation or repairs made by unqualified persons can result in hazards to you
Ÿ
and others.
Failure to carefully read and follow all instructions in this manual can result in
Ÿ
equipment malt unction, property damage, personal injury and/or death.
This service is only for service engineer to use.
Ÿ
Page 2
CONTENTS
1. Precaution ................................................................................................................................................... 1
1.1 Safety Precaution ..................................................................................................................... 1
1.2 Warning .................................................................................................................................... 1
2. Part Names And Functions ........................................................................................................................ 4
2.1 Model Names of Indoor/Outdoor units ...................................................................................... 4
2.2 Part names of Indoor/Outdoor units .......................................................................................... 5
3. Dimension ................................................................................................................................................... 6
3.1 Indoor Unit ................................................................................................................................ 6
3.2 Outdoor Unit ............................................................................................................................. 9
4. Refrigerant Cycle Diagram ...................................................................................................................... 10
5. Wiring Diagram ......................................................................................................................................... 12
6 Installation Details ..................................................................................................................................... 12
6.1 Wrench torque sheet for installation ........................................................................................ 12
6.2 Connecting the cables ............................................................................................................ 12
6.3 Pipe length and the elevation .................................................................................................. 12
6.4 Installation for the first time ..................................................................................................... 12
6.5 Adding the refrigerant after running the system for many years ............................................... 14
6.6 Re-installation while the indoor unit need to be repaired ......................................................... 14
6.7 Re-installation while the outdoor unit need to be repaired ....................................................... 15
7. Operation Characteristics........................................................................................................................ 17
8. Electronic Function .................................................................................................................................. 18
8.1 Abbreviation .............................................................................. Error! Bookmark not defined.
8.2 Display function ......................................................................... Error! Bookmark not defined.
8.3 Main Protection ......................................................................... Error! Bookmark not defined.
8.4 Operation Modes and Functions ................................................ Error! Bookmark not defined.
9. Troubleshooting ....................................................................................................................................... 26
9.1 Indoor Unit Error Display ........................................................................................................ 27
9.2 Outdoor unit error display ....................................................................................................... 28
9.3 Diagnosis and Solution ........................................................................................................... 28
10 Disassembly Instructions ............................................................................. Error! Bookmark not defined.
10.1 Indoor unit ............................................................................... Error! Bookmark not defined.
10.2 Outdoor unit............................................................................. Error! Bookmark not defined.
Page 3
1
1. Precaution
1.1 Safety Precaution
To prevent injury to the user or other
people and property damage, the following
instructions must be followed.
Incorrect operation due to ignoring
instruction will cause harm or damage.
Before service the unit, be sure to
read this service manual at first.
1.2 Warning
Installation
Do not use a defective or underrated
circuit breaker. Use this appliance on a
dedicated circuit.
There is risk of fire or electric shock.
For electrical work, contact the dealer,
seller, a qualified electrician, or an
authorized service center.
Do not disassemble or repair the product,
there is risk of fire or electric shock.
Always ground the product.
There is risk of fire or electric shock.
Install the panel and the cover of
control box securely.
There is risk of fire of electric shock.
Always install a dedicated circuit and
breaker.
Improper wiring or installation may cause
electric shock.
Use the correctly rated breaker of
fuse.
There is risk of fire or electric shock.
Do not modify or extend the power
cable.
There is risk of fire or electric shock.
Do not install, remove, or reinstall the
unit by yourself (customer).
There is risk of fire, electric shock, explosion,
or injury.
Be caution when unpacking and
installing the product.
Sharp edges could cause injury, be especially
careful of the case edges and the fins on the
condenser and evaporator.
For installation, always contact the
dealer or an authorized service center.
Do not install the product on a
defective installation stand.
Be sure the installation area does not
deteriorate with age.
If the base collapses, the air conditioner could
fall with it, causing property damage, product
failure, and personal injury.
Do not let the air conditioner run for a
long time when the humidity is very high
and a door or a window is left open.
Take care to ensure that power cable
could not be pulled out or damaged during
operation.
There is risk of fire or electric shock.
Do not place anything on the power
cable.
There is risk of fire or electric shock.
Do not plug or unplug the power
supply plug during operation.
There is risk of fire or electric shock.
Do not touch (operation) the product
with wet hands.
Do not place a heater or other
appliance near the power cable.
There is risk of fire and electric shock.
Do not allow water to run into
electrical parts.
It may cause fire, failure of the product, or
electric shock.
Do not store or use flammable gas or
combustible near the product.
There is risk of fire or failure of product.
Do not use the product in a tightly
closed space for a long time.
Oxygen deficiency could occur.
When flammable gas leaks, turn off
the gas and open a window for ventilation
before turn the product on.
If strange sounds or smoke comes
from product, turn the breaker off or
disconnect the power supply cable.
There is risk of electric shock or fire.
Page 4
2
Stop operation and close the window
in storm or hurricane. If possible, remove
the product from the window before the
hurricane arrives.
There is risk of property damage, failure of
product, or electric shock.
Do not open the inlet grill of the
product during operation. (Do not touch the
electrostatic filter, if the unit is so equipped.)
There is risk of physical injury, electric shock,
or product failure.
When the product is soaked, contact
an authorized service center.
There is risk of fire or electric shock.
Be caution that water could not enter
the product.
There is risk of fire, electric shock, or product
damage.
Ventilate the product from time to
time when operating it together with a stove
etc.
There is risk of fire or electric shock.
Turn the main power off when
cleaning or maintaining the product.
There is risk of electric shock.
When the product is not be used for a
long time, disconnect the power supply plug
or turn off the breaker.
There is risk of product damage or failure, or
unintended operation.
Take care to ensure that nobody
could step on or fall onto the outdoor unit.
This could result in personal injury and
product damage.
CAUTION
Always check for gas (refrigerant)
leakage after installation or repair of
product.
Low refrigerant levels may cause failure of
product.
Install the drain hose to ensure that
water is drained away properly.
A bad connection may cause water leakage.
Keep level even when installing the
product.
It can avoid vibration of water leakage.
Do not install the product where the
noise or hot air from the outdoor unit could
damage the neighborhoods.
It may cause a problem for your neighbors.
Use two or more people to lift and
transport the product.
Do not install the product where it will
be exposed to sea wind (salt spray) directly.
It may cause corrosion on the product.
Corrosion, particularly on the condenser and
evaporator fins, could cause product
malfunction or inefficient operation.
Operational
Do not expose the skin directly to
cool air for long time. (Do not sit in the
draft).
Do not use the product for special
purposes, such as preserving foods, works
of art etc. It is a consumer air conditioner,
not a precision refrigerant system.
There is risk of damage or loss of property.
Do not block the inlet or outlet of air
flow.
Use a soft cloth to clean. Do not use
harsh detergents, solvents, etc.
There is risk of fire, electric shock, or damage
to the plastic parts of the product.
Do not touch the metal parts of the
product when removing the air filter. They
are very sharp.
Do not step on or put anything on the
product. (outdoor units)
Always insert the filter securely.
Clean the filter every two weeks or more
often if necessary.
A dirty filter reduces the efficiency of the air
conditioner and could cause product
malfunction or damage.
Do not insert hands or other objects
through air inlet or outlet while the product
is operated.
Do not drink the water drained from
the product.
Use a firm stool or ladder when
Page 5
3
cleaning or maintaining the product.
Be careful and avoid personal injury.
Replace the all batteries in the remote
control with new ones of the same type. Do
not mix old and new batteries or different
types of batteries.
There is risk of fire or explosion.
Do not recharge or disassemble the
batteries. Do not dispose of batteries in a
fire.
They may burn of explode.
If the liquid from the batteries gets
onto your skin or clothes, wash it well with
clean water. Do not use the remote of the
batteries have leaked.
Page 6
4
2. Part Names And Functions
Capacity
Voltage
Klimaire Indoor units
Klimaire Outdoor units
9k
115V
KSIR009-H117-I
KSIR009-H117-O
12k
115V
KSIR012-H117-I
KSIR012-H117-O
9k
208-230V
KSIR009-H217-I
KSIR009-H217-O
12k
208-230V
KSIR012-H217-I
KSIR012-H217-O
18k
208-230V
KSIR018-H217-I
KSIR018-H217-O
24k
208-230V
KSIR024-H217-I
KSIR024-H217-O
30k
208-230V
KSIR030-H215-I
KSIR030-H215-O
36k
208-230V
KSIR036-H215-I
KSIR036-H215-O
9k
115V
KSIE009-H121-I
KSIE009-H121-O
12k
115V
KSIE012-H120-I
KSIE012-H120-O
9k
208-230V
KSIE009-H221-I
KSIE009-H221-O
12k
208-230V
KSIE012-H220-I
KSIE012-H220-O
18k
208-230V
KSIE018-H220-I
24k
208-230V
KSIE024-H220-I
2.1 Model Names of Indoor/Outdoor units
KSIE018-H220-O
KSIE024-H220-O
Page 7
5
2.2 Part names of Indoor/Outdoor units
Page 8
6
Model
W x D x H (mm)
W x D x H (inch)
Mounted plate
KSIR009-H117-I
KSIR009-H217-I
722 x 187 x 290
28.43 x 7.36 x 11.42
A
KSIR012-H117-I
KSIR012-H217-I
KSIE009-H121-I
KSIE012-H120-I
KSIE009-H221-I
KSIE012-H220-I
802 x 189 x 297
31.57 x 7.44 x 11.69
B
KSIR018-H217-I
965 x 215 x 319
37.99 x 8.46 x 12.56
C
KSIR024-H217-I
KSIE018-H220-I
KSIE024-H220-I
1080 x 226 x 335
42.52 x 8.90 x 13.19
D
KSIR030-H215-I
KSIR036-H215-I
1259 x 282 x 362
49.57 x 11.10 x 14.25
E
3. Dimension
3.1 Indoor Unit
Page 9
7
For Mounted plate A，
For Mounted plate B，
For Mounted plate C，
Page 10
8
For Mounted plate D，
For Mounted plate E，
Page 11
9
More than 60cm(23.6in)
More than 70cm(27.6in)
More than 30cm(11.8in)
More than 60cm(23.6in)
(Service space)
Fence or
obstacles
More than 30cm(11.8in)
Model
W D H
W1 A B
KSIR009-H117-O
KSIR012-H117-O
KSIR009-H217-O
KSIR012-H217-O
KSIE009-H121-O
KSIE009-H221-O
770(mm)
300(mm)
555(mm)
823(mm)
530(mm)
290(mm)
30.31(inch)
11.81(inch)
21.85(inch)
32.40 (inch)
20.87(inch)
11.42 (inch)
KSIR018-H217-O
KSIE012-H120-O
KSIE012-H220-O
800(mm)
333(mm)
554(mm)
823(mm)
530(mm)
290(mm)
31.50(inch)
13.11(inch)
21.81(inch)
32.40 (inch)
20.87 (inch)
11.42(inch)
KSIE018-H220-O
845(mm)
363(mm)
702(mm)
874(mm)
549(mm)
325(mm)
33.27(inch)
14.29(inch)
27.64(inch)
34.41 (inch)
21.61 (inch)
12.80 (inch)
KSIR030-H215-O
KSIR036-H215-O
KSIE024-H220-O
946(mm)
420(mm)
810(mm)
1030(mm)
673(mm)
403(mm)
37.24(inch)
16.54(inch)
31.89(inch)
40.55(inch)
26.50(inch)
15.87(inch)
3.2 Outdoor Unit
Note: The above drawing is only for reference. The appearance of your units may be different.
Page 12
10
LIQUID SIDE
GAS SIDE
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
COMPRESSOR
2-WAY VALVE
3-WAY VALVE
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room temp.
sensor
ACCUMULATOR
INDOOR OUTDOOR
CHECK VALVE
(Heating Model only)
CAPILIARY TUBE
4. Refrigerant Cycle Diagram
KSIR009-H117-I, KSIR012-H117-I, KSIR009-H217-I, KSIR012-H217-I, KSIR018-H217-I,
KSIR024-H217-I, KSIE009-H121-I, KSIE012-H120-I.
Page 13
11
LIQUID SIDE
GAS SIDE
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
2-WAY VALVE
3-WAY VALVE
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room temp.
sensor
T3 Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
Electronic
expansion valve
CAPILIARY TUBE
Accumulator
CAPILIARY TUBE
KSIE009-H221-I, KSIE012-H220-I, KSIE018-H220-I, KSIE024-H220-I, KSIR030-H215-I,
KSIR036-H215-I.
Page 14
12
Outside diameter
Torque
Additional tightening
torque
6.35mm
1/4in
1500N.cm(153kgf.cm)
1600N.cm(163kgf.cm)
9.52mm
3/8in
2500N.cm(255kgf.cm)
2600N.cm(265kgf.cm)
12.7mm
1/2in
3500N.cm(357kgf.cm)
3600N.cm(367kgf.cm)
15.9mm
5/8in
4500N.cm(459kgf.cm)
4700N.cm(479kgf.cm)
19mm
3/4in
6500N.cm(663kgf.cm)
6700N.cm(683kgf.cm)
Appliance Amps
AWG Wire Size
10
18
13
16
18
14
25
12
30
10
Models
Pipe size
Gas
Liquid
9K
3/8in
(9.52mm)
1/4in
(6.35mm)
12K,18K
1/2in
(12.7mm)
1/4in
(6.35mm)
24K,30K,36K
5/8in (15.9mm)
3/8in
(9.52mm)
Models
Standard length
Max.
Elevati
on
Max.
Length
A
Additional
refrigerant
9K,12K
7.5m
(24.6ft)
10m
(32.8ft)
25m
(82.0ft)
15g/m
(0.16oz/ft)
18K
7.5m
(24.6ft)
20m
(65.6ft)
30m
(98.4ft)
15g/m
(0.16oz/ft)
24K
7.5m
(24.6ft)
20m
(65.6ft)
30m
(98.4ft)
30g/m
(0.32oz/ft)
30K
7.5m
(24.6ft)
25m
(82.0ft)
50m
(164ft)
30g/m
(0.32oz/ft)
36K
7.5m
(24.6ft)
30m
(82.0ft)
65m
(213ft)
30g/m
(0.32oz/ft)
5. Wiring Diagram
(Pls refer the wiring diagram on the unit)
6 Installation Details
6.1 Wrench torque sheet for
installation
6.3 Pipe length and the elevation
6.2 Connecting the cables
The power cord should be selected according
to the following specifications sheet.
The cable size and the current of the fuse or
switch are determined by the maximum
current indicated on the nameplate which
located on the side panel of the unit. Please
refer to the nameplate before selecting the
cable, fuse and switch.
6.4 Installation for the first time
Air and moisture in the refrigerant system have
undesirable effects as below:
● Pressure in the system rises.
● Operating current rises.
● Cooling or heating efficiency drops.
● Moisture in the refrigerant circuit may
freeze and block capillary tubing.
● Water may lead to corrosion of parts in the
refrigerant system.
Therefore, the indoor units and the pipes
Page 15
13
between indoor and outdoor units must be leak
tested and evacuated to remove gas and
moisture from the system.
Gas leak check (Soap water method):
Apply soap water or a liquid neutral
detergent on the indoor unit connections or
outdoor unit connections by a soft brush to
check for leakage of the connecting points of
the piping. If bubbles come out, the pipes have
leakage.
1. Air purging with vacuum pump
7) Turn the flare nut of the 3-way valves about
45° counterclockwise for 6 or 7seconds
after the gas coming out, then tighten the
flare nut again. Make sure the pressure
display in the pressure indicator is a little
higher than the atmosphere pressure. Then
remove the charge hose from the 3 way
valve.
8) Fully open the 2 way valve and 3 way valve
and securely tighten the cap of the 3 way
valve.
2. Air purging by refrigerant
1) Completely tighten the flare nuts of the
indoor and outdoor units, confirm that both
the 2-way and 3-way valves are set to the
closed position.
2) Connect the charge hose with the push pin
of handle lo to the 3-way valves gas service
port..
3) Connect the charge hose of handle hi
connection to the vacuum pump.
4) Fully open the handle Lo of the manifold
valve.
5) Operate the vacuum pump to evacuate.
6) Make evacuation for 30 minutes and check
whether the compound meter indicates
-0.1Mpa(14.5Psi). If the meter does not
indicate -0.1Mpa(14.5Psi) after pumping 30
minutes, it should be pumped 20 minutes
more. If the pressure can’t achieve
-0.1Mpa(14.5Psi) after pumping 50 minutes,
please check if there are some leakage
points. Fully close the handle Lo valve of the
manifold valve and stop the operation of the
vacuum pump. Confirm that the gauge
needle does not move (approximately 5
minutes after turning off the vacuum pump).
Procedure:
1). Confirm that both the 2-way and 3-way
valves are set to the closed position.
2). Connect the charge set and a charging
cylinder to the service port of the 3-way valve.
3). Air purging.
Open the valves on the charging cylinder and
the charge set. Purge the air by loosening the
flare nut on the 2-way valve approximately 45’
for 3 seconds then closing it for 1 minute; repeat
3 times.
After purging the air, use a torque wrench to
tighten the flare nut on the 2-way valve.
4). Check the gas leakage.
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and
discharge the refrigerant by loosening the flare
nut on the 2-way valve approximately 45’ until
the gauge indicates 0.3Mpa(43.5Psi) to 0.5
Mpa(72.5Psi).
6). Disconnect the charge set and the charging
Page 16
14
cylinder, and set the 2-way and 3-way valves to
the open position.
Be sure to use a hexagonal wrench to operate
the valve stems.
7). Mount the valve stems nuts and the service
port cap.
Be sure to use a torque wrench to tighten the
service port cap to a torque 18N·m.
Be sure to check the gas leakage.
6.5 Adding the refrigerant after running
the system for many years
before disconnecting the hose.
7). Mount the valve stem caps and the service
port
Use torque wrench to tighten the service port
cap to a torque of 18N.m.
Be sure to check for gas leakage.
6.6 Re-installation while the indoor unit
need to be repaired
1. Collecting the refrigerant into the outdoor
unit
Procedure
1). Connect the charge hose to the 3-way
service port, open the 2-way valve and the
3-way valve.
Connect the charge hose to the valve at the
bottom of the cylinder. If the refrigerant is
R410A, make the cylinder bottom up to ensure
liquid charge.
2). Purge the air from the charge hose.
Open the valve at the bottom of the cylinder
and press the check valve on the charge set to
purge the air (be careful of the liquid
refrigerant).
3) Put the charging cylinder onto the electronic
scale and record the weight.
4) Operate the air conditioner at the cooling
mode.
5) Open the valves (Low side) on the charge set
and charge the system with liquid refrigerant.
6).When the electronic scale displays the
proper weight (refer to the gauge and the
pressure of the low side), disconnect the charge
hose from the 3-way valve’s service port
immediately and turn off the air conditioner
Procedure
1). Confirm that both the 2-way and 3-way
valves are set to the opened position
Remove the valve stem caps and confirm that
the valve stems are in the opened position.
Be sure to use a hexagonal wrench to operate
the valve stems.
2). Connect the charge hose with the push pin
of handle lo to the 3-way valves gas service
port.
3). Air purging of the charge hose.
Open the handle Lo valve of the manifold valve
slightly to purge air from the charge hose for 5
seconds and then close it quickly.
4). Set the 2-way valve to the close position.
5). Operate the air conditioner at the cooling
cycle and stop it when the gauge indicates
0.1Mpa(14.5Psi).
6). Set the 3-way valve to the closed position
immediately
Do this quickly so that the gauge ends up
indicating 0.3Mpa(43.5Psi) to 0.5 Mpa(72.5Psi).
Disconnect the charge set, and tighten the
2-way and 3-way valve’s stem nuts.
Use a torque wrench to tighten the 3-way valves
Page 17
15
service port cap to a torque of 18N.m.
Be sure to check for gas leakage.
2. Air purging by the refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way
valves are set to the closed position.
2). Connect the charge set and a charging
cylinder to the service port of the 3-way valve
Leave the valve on the charging cylinder closed.
3). Air purging.
Open the valves on the charging cylinder and
the charge set. Purge the air by loosening the
flare nut on the 2-way valve approximately 45’
for 3 seconds then closing it for 1 minute; repeat
3 times.
After purging the air, use a torque wrench to
tighten the flare nut on the 2-way valve.
4). Check the gas leakage
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and
discharge the refrigerant by loosening the flare
nut on the 2-way valve approximately 45’ until
the gauge indicates 0.3Mpa(43.5Psi) to 0.5
Mpa(72.5Psi).
6). Disconnect the charge set and the charging
cylinder, and set the 2-way and 3-way valves to
the open position
Be sure to use a hexagonal wrench to operate
the valve stems.
7). Mount the valve stems nuts and the service
port cap
Be sure to use a torque wrench to tighten the
service port cap to a torque 18N.m.
Be sure to check the gas leakage.
6.7 Re-installation while the outdoor
unit need to be repaired
1. Evacuation for the whole system
Procedure:
1). Confirm that both the 2-way and 3-way
valves are set to the opened position.
2). Connect the vacuum pump to 3-way valve’s
service port.
3). Evacuation for approximately one hour.
Confirm that the compound meter indicates
-0.1Mpa(14.5Psi).
4). Close the valve (Low side) on the charge set,
turn off the vacuum pump, and confirm that the
gauge needle does not move (approximately 5
minutes after turning off the vacuum pump).
5). Disconnect the charge hose from the
vacuum pump.
2. Refrigerant charging
Procedure:
1). Connect the charge hose to the charging
cylinder, open the 2-way valve and the 3-way
valve
Connect the charge hose which you
disconnected from the vacuum pump to the
valve at the bottom of the cylinder. If the
refrigerant is R410A, make the cylinder bottom
Page 18
16
up to ensure liquid charge.
2). Purge the air from the charge hose
Open the valve at the bottom of the cylinder
and press the check valve on the charge set to
purge the air (be careful of the liquid
refrigerant).
3) Put the charging cylinder onto the electronic
scale and record the weight.
4). Open the valves (Low side) on the charge
set and charge the system with liquid refrigerant
If the system cannot be charge with the
specified amount of refrigerant, or can be
charged with a little at a time (approximately
150g each time) , operating the air conditioner
in the cooling cycle; however, one time is not
sufficient, wait approximately 1 minute and then
repeat the procedure.
5).When the electronic scale displays the
proper weight, disconnect the charge hose from
the 3-way valve’s service port immediately
If the system has been charged with liquid
refrigerant while operating the air conditioner,
turn off the air conditioner before disconnecting
the hose.
6). Mounted the valve stem caps and the
service port. Use torque wrench to tighten the
service port cap to a torque of 18N.m. Be sure
to check for gas leakage.
Page 19
17
Temperature
Mode
Cooling operation
Heating operation
Drying operation
Room temperature
17℃～32℃
(62℉～90℉)
0℃～30℃
(32℉～86℉)
10℃～32℃
(50℉～90℉)
Outdoor temperature
(KSIR009-H117-I，
KSIR012-H117-I，
KSIR009-H217-I，
KSIR012-H217-I，
KSIR018-H217-I,
KSIR024-H217-I)
0°C～50°C
(32°F～122°F)
-15°C～30°C
(5°F～86°F)
0°C～50°C
(32°F～122°F)
-15°C～50°C
(5°F～122°F)
(need low ambient cooling function)
Outdoor temperature
(KSIR030-H215-I，
KSIR036-H215-I，
KSIE009-H121-I，
KSIE012-H120-I,
KSIE009-H221-I,
KSIE012-H220-I,
KSIE018-H220-I,
KSIE024-H220-I)
-25°C～50°C
(-13°F～122°F)
-25°C～50°C
(-13°F～122°F)
0°C～50°C
(32°F～122°F)
7. Operation Characteristics
CAUTION:
1. If the air conditioner is used beyond the above conditions, certain safety protection features may
come into operation and cause the unit to operate abnormally.
2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this
figure, the surface of the air conditioner may attract condensation. Please set the vertical air flow louver to
its maximum angle (vertically to the floor), and set HIGH fan mode.
3. The optimum performance will be achieved during this operating temperature zone.
+32
Page 20
18
8. Electronic Function
8.1 Abbreviation
T1: Indoor room temperature
T2: Coil temperature of evaporator
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
8.2 Display function
8.2.1 Icon explanation on indoor display board.
Dispalys ‘ ’ during self clean operation (if
aplicable).
Dispalys ‘ ’ under 8
aplicable).
When ECO function(optional) is actived,the
“ ” illuminates gradually one by one as
In one second interval.
NOTE:
A guide on using the infrared remote is not
heating operation (if
Digital display:
Displays the temperature settings when the air
conditioner is operational.
Displays the room temperature in FAN mode.
Displays the self-diagnostic codes.
Dispalys ‘ ’ for three seconds when Timer
ON, Fresh, Swing, Turbo or Silence feature is
activated.
Dispalys ‘ ’ for three seconds when Fresh,
included in this literature package.
Swing, Turbo or Silence feature is cancelled.
Dispalys ‘ ’ under deforsting operation.
Dispalys ‘ ’ when anti-cold air feature is
activated under heating mode.
Page 21
19
a
b
c
d
T1
e
8.3 Main Protection
8.3.1 Three minutes delay at restart for
compressor
1 minute delay for the 1st time stand-up and 3
minutes delay for others.
8.3.2 Temperature protection of compressor
top
The unit will stop working when the compressor
top temp. protector cut off, and will restart after
the compressor top temp. protector restart.
8.3.3 Temperature protection of compressor
discharge
Compressor discharge temp. T5>115℃ for 5s,
compressor stops.
8.3.4 Fan speed is out of control
When indoor fan speed keeps too low
(300RPM) for certain time, the unit will stop and
the LED will display the failure
8.3.5 Inverter module protection
The Inverter module has a protection function
about current, voltage and temperature. If these
protections happen, the corresponding code
will display on indoor unit and the unit will stop
working.
8.3.6 Indoor fan delayed open function
When the unit starts up, the louver will be active
immediately and the indoor fan will open 7s
later.
If the unit runs in heating mode, the indoor fan
will be also controlled by anti-cold wind
function.
8.3.7 Compressor preheating functions
Preheating permitting condition:
When T4(outdoor ambient temperature)＜3°C,
the preheating function will be activated.
8.3.8 Sensor protection at open circuit and
breaking disconnection.
When there’s only one temperature sensor in
malfunction , the air conditioner will keep
working but show the error code, in case of any
emergency use.
When there’s more than one temperature
sensor in malfunction, the air conditioner will
stop working.
8.4 Operation Modes and Functions
8.4.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled,
and no setting temperature is displayed.
(3) Indoor fan can be set to
high/med/low/auto.
(4) The louver operates same as in cooling
mode.
(5) Auto fan:
8.4.2 Cooling Mode
8.4.2.1 Compressor running rules
When T1-Ts< T -2℃, the compressor will stop,
when T1—Ts > T -0.5℃，the compressor will
be activated.
T is the programmed parameter of
temperature compensation.
When the AC run in mute mode, the
compressor will run with low frequency.
When the current is more than setting value,
the current protection function will be activated,
and the compressor will stop.
8.4.2.2 Outdoor fan running rules
The outdoor unit will be run at different fan
speed according to T4.
For different outdoor units, the fan speeds are
different.
Page 22
20
T4
A+
A
B
C
D
E
Setting fan
speed
Actual fan speed
H+(H+=H+G)
A H（=H）
B
C
M+(M+=M+Z)
D M(M=M)
E
F
L+(L+=L+D)
G L(L=L)
H
I
T1-Td ℃(°F)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)
a
b
c
d
T1
e
TP3+5
T3
Resume
Off
Decrease
TP3
TP3-3
Hold
8.4.2.3 Indoor fan running rules
In cooling mode, indoor fan runs all the time
and the speed can be selected as high,
medium, low and auto.
The indoor fan is controlled as below:
The auto fan acts as below rules:
---TP3<T3< TP3+5, the compressor frequency
will decrease to the lower level until to F1 and
then runs at F1.If TP3-3<T3< TP3, the
compressor will keep running at the current
frequency.
---T3< TP3-3, the compressor will not limit the
frequency and resume to the former frequency.
---T3> TP3+5 for 5 seconds, the compressor
will stop until T3< TP3-3.
8.4.2.5 Evaporator temperature protection
When Evaporator temperature temp.is less
than setting value, the compressor will stop.
8.4.3 Heating Mode
8.4.2.4 Condenser temperature protection
8.4.3.1 Compressor running rules
When T1-Ts>- T, the compressor will stop,
when T1-TS< T-1.5，the compressor will be on.
T is the programmed parameter of
temperature compensation.
When the AC run in mute mode, the
compressor will run with low frequency.
When the current is more than setting value,
the current protection function will be activated
and the compressor will stop.
8.4.3.2 Outdoor fan running rules
The outdoor unit will be run at different fan
speed according to T4.
For different outdoor units, the fan speeds are
different.
Page 23
21
T4
A+
A
B
C
D
E
Setting fan
speed
Actual fan speed
H+(H+=H+G)
A H（=H）
B
C
M+(M+=M+Z)
D M(M=M)
E
F
L+(L+=L+D)
G L(L=L)
H
I
T1-Td ℃(°F)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)
a
b
c
d
T1
e
TEstop
T2
Resume
Off
Decrease
TEdown
TEH2
Hold
T=T1-Ts
Running mode
T＞2℃
Cooling
-2 T2℃
Fan-only
T<-2℃
Heating
8.4.3.3 Indoor fan running rules
When the compressor is on, the indoor fan can
be set to high/med/low/auto. And the anti-cold
wind function has the priority.
The indoor fan is controlled as below:
Auto fan action in heating mode:
normal heating mode.
----T3 rises to be higher than TCDE1℃.
----T3 keeps to be higher than TCDE2℃ for 80
seconds.
----The machine has run for 15 minutes in
defrosting mode.
8.4.3.5 Evaporator coil temperature
protection
Off: Compressor stops.
Decrease: Decrease the running frequency to
the lower level.
Hold: Keep the current frequency.
Resume: No limitation for frequency.
8.4.4 Auto-mode
This mode can be chosen with remote
controller and the setting temperature can be
changed between 17°C~30°C
In auto mode, the machine will choose cooling,
heating or fan-only mode according to T ( T
=T1-Ts).
8.4.3.4 Defrosting mode
AC will enter the defrosting mode according to
the value of temp. of T3 and the value range of
temp. change of T3 and also the compressor
running time.
During the defrosting mode, the compressor keep
running, indoor and outdoor motor will stop,
defrost lamp of the indoor unit will be lighted
“ .” Will be displayed.
If any one of the following items is satisfied, the
defrosting will finish and the machine will turn to
Indoor fan will run at auto fan of the relevant
mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating
and cooling, the compressor will keep stopping
for 15 minutes and then choose mode
according to T1-Ts.
If the setting temperature is modified, the
machine will choose running function again.
Page 24
22
8.4.5 Drying mode
Indoor fan speed is fixed at breeze and can’t be
changed. The louver angle is the same as in
cooling mode.
All protections are active and the same as that
in cooling mode.
8.4.6 Forced operation function
Forced cooling mode:
The compressor and outdoor fan keep running
and the indoor fan runs at low speed. After
running for 30 minutes, AC will turn to auto
mode with 24℃ setting temperature.
Forced auto mode:
The action of forced auto mode is the same as
normal auto mode with 24℃ setting
temperature.
When AC receives signals, such as switch on,
switch off, timer on, timer off, mode setting, fan
speed setting, sleeping mode setting, follow me
setting, it will quit the forced operation.
8.4.7 Timer function
8.4.7.1 Timing range is 24 hours.
8.4.7.2 Timer on. The machine will turn on
automatically when reaching the setting time.
8.4.7.3 Timer off. The machine will turn off
automatically when reaching the setting time.
8.4.7.4 Timer on/off. The machine will turn on
automatically when reaching the setting “on”
time, and then turn off automatically when
reaching the setting “off” time.
8.4.7.5 Timer off/on. The machine will turn off
automatically when reaching the setting “off”
time, and then turn on automatically when
reaching the setting “on” time.
8.4.7.6 The timer function will not change the
AC current operation mode. Suppose AC is off
now, it will not start up firstly after setting the
“timer off” function. And when reaching the
setting time, the timer LED will be off and the
AC running mode has not been changed.
8.4.7.7 The setting time is relative time.
8.4.7.8 The AC will quit the timer function when
it has malfunction.
8.4.8 Economy function
8.4.8.1 The sleep function is available in
cooling, heating or auto mode.
8.4.8.2. Operation process in sleep mode is as
follow:
When cooling, the setting temperature rises 1℃
(be lower than 30℃) every one hour, 2 hours
later the setting temperature stops rising and
the indoor fan is fixed at low speed.
When heating, the setting temperature
decreases 1℃ (be higher than 17℃) every one
hour, 2 hours later the setting temperature
stops rising and indoor fan is fixed at low speed.
(Anti-cold wind function has the priority).
8.4.8.3 Operation time in sleep mode is 7 hours.
After 7 hours the AC quits this mode and turns
off.
8.4.8.4 Timer setting is available
8.4.9 Auto-Restart function
The indoor unit is equipped with auto-restart
function, which is carried out through an
auto-restart module. In case of a sudden power
failure, the module memorizes the setting
conditions before the power failure. The unit will
resume the previous operation setting (not
including swing function) automatically after 3
minutes when power returns.
If the memorization condition is forced cooling
mode, the unit will run in cooling mode for 30
minutes and turn to auto mode as 24℃ setting
temp.
If AC is off before power off and AC is required
to start up now, the compressor will have 1
minute delay when power on. Other conditions,
the compressor will have 3 minutes delay when
restarts.
8.4.10 Refrigerant Leakage Detection
With this new technology, the display area will
show “EC” when the outdoor unit detects
refrigerant leakage. This function is only
available in cooling mode.
8.4.11 Louver Position Memory Function
Page 25
23
When starting the unit again after shutting down,
its louver will restore to the angle originally set
by the user, but the precondition is that the
angle must be within the allowable range, if it
exceeds, it will memorize the maximum angle
of the louver. During operation, if the power fails
or the end user shuts down the unit in the turbo
mode, the louver will restore to the default
angle.
8.4.12 8℃ Heating(optional)
In heating operation, the preset temperature of
the air conditioner can be as lower as 8℃,
which keeps the room temperature steady at 8℃
and prevents household things freezing when
the house is unoccupied for a long time in
severe cold weather.
8.4.13 Self clean(optional)
For heat pump models which are provided with
this function, after running in cooling or drying
mode, if the user press “Self Clean” button on
remote controller, firstly, indoor unit runs in fan
only mode for a while, then low heat operation
and finally runs in fan only again. This function
can keep the inside of indoor unit dry and
prevent breeding of mold.
8.4.14 Follow me (optional)
1) If the indoor PCB receives the signal which
results from pressing the FOLLOW ME button
on remote controller, the buzzer will emit a
sound and this indicates the follow me function
is initiated. But when the indoor PCB receives
signal which sent from remote controller every
3 minutes, the buzzer will not respond. When
the unit is running with follow me function, the
PCB will control the unit according to the
temperature from follow me signal, and the
temperature collection function of room
temperature sensor will be shielded, but the
error detective function of room temperature
sensor will be still valid.
2) When the follow me function is available,
the PCB will control the unit according to the
room temperature from the remote controller
and the setting temperature.
3) The PCB will take action to the mode
change information from remote controller
signal, but it will not affected by the setting
temperature.
4) When the unit is running with follow me
function, if the PCB doesn’t receive any signal
from remote controller for 7 minutes or pressing
FOLLOW ME button again, the follow me
function will be turned off automatically, and the
temperature will control the unit according to
the room temperature detected from its own
room temperature sensor and setting
temperature.
8.4.15 Silence operation(optional)
Press the “silence” button on remote controller
to initiate SILENCE function. When the Silence
function is activated, the compressor running
frequency will keep lower than F2 and the
indoor unit will bring faint breeze, which will
reduce the noise to the lowest level and create
a quiet and comfortable room for you.
8.4.16 Point check function
Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press
the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two
seconds. The air conditioner will enter into the information enquiry status. You can press the LED
DISPLAY or AIR DIRECTION button to check the next or front item’s information.
When the AC enter the “information enquiry” status, it will display the code name in 2 seconds, the
details are as follows.
Page 26
24
Enquiry information
Displaying code
Meaning
T1
T1
T1 temp.
T2
T2
T2 temp.
T3
T3
T3 temp.
T4
T4
T4 temp.
T2B
Tb
T2B temp.
TP
TP
TP temp.
TH
TH
TH temp.
Targeted Frequency
FT
Targeted Frequency
Actual Frequency
Fr
Actual Frequency
Indoor fan speed
IF
Indoor fan speed
Outdoor fan speed
OF
Outdoor fan speed
EXV opening angle
LA
EXV opening angle
Compressor continuous running time
CT
Compressor continuous
running time
Causes of compressor stop.
ST
Causes of compressor
stop.
Reserve
A0
Reserve
A1
Reserve
0
Reserve
1
Reserve
2
Reserve
3
Reserve
4
Reserve
5
Reserve
6
Reserve
L
Reserve
A
Reserve
U
Reserve
T
Enquiry
information
Display value
Meaning
Remark
T1,T2,T3,T4,
T2B,TP,TH,
Targeted
Frequency,
Actual
Frequency
-1F,-1E,-1d,-1c,-
1b,-1A
-25,-24,-23,-22,-21,-2
0
1. All the displaying temperature is actual
value.
2. All the temperature is °C no matter what
kind of remote controller is used.
3. T1,T2,T3,T4,T2B display range:-25~70,
TP display range:-20~130.
4. Frequency display range: 0~159HZ.
5. If the actual value exceeds the range, it
-19—99
-19—99
A0,A1,…A9
100,101,…109
b0,b1,…b9
110,111,…119
c0,c1,…c9
120,121,…129
d0,d1,…d9
130,131,…139
E0,E1,…E9
140,141,…149
When the AC enter into the information enquiry status, it will display the code value in the next 25s,
the details are as follows.
Page 27
25
F0,F1,…F9
150,151,…159
will display the maximum value or minimum
value.
Indoor fan
speed
/Outdoor fan
speed
0
OFF
1,2,3,4
Low speed, Medium
speed, High speed,
Turbo
For some big capacity motors.
14-FF
Actual fan
speed=Display value
turns to decimal
value and then
multiply 10. The unit
is RPM.
For some small capacity motors,
display value is from 14-FF(hexadecimal),
the corresponding fan speed range is from
200-2550RPM.
EXV opening
angle
0-FF
Actual EXV opening
value=Display value
turns to decimal
value and then
multiply 2.
Compressor
continuous
running time
0-FF
0-255 minutes
If the actual value exceeds the
range, it will display the maximum
value or minimum value.
Causes of
compressor
stop.
0-99
For the detailed
meaning, please
consult with engineer
Decimal display
Reserve
0-FF
Page 28
26
9. Troubleshooting
Safety
Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity
power in capacitor.
Electrolytic Capacitors
(HIGH VOLTAGE! CAUTION!)
For other models, please connect discharge resistance (approx.100 40W) or soldering iron (plug) between +, -
terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.
Note: The picture above is only for reference. The plug of your side may be different.
Page 29
27
Operation
lamp
Timer lamp
Display
LED STATUS
☆ 1 time
X
E0
Indoor unit EEPROM parameter error
☆ 2 times
X
E1
Indoor / outdoor units communication error
☆ 3 times
X
E2
Zero-crossing signal detection error
☆ 4 times
X
E3
Indoor fan speed has been out of control
☆ 5 times
X
E4
Indoor room temperature sensor T1 open circuit or short
circuit
☆ 6 times
X
E5
Evaporator coil temperature sensor T2 open circuit or
short circuit
☆ 7 times
X
EC
Refrigerant leakage detection
☆ 1 times
O
F0
Overload current protection
☆ 2 times
O
F1
Outdoor ambient temperature sensor T4 open circuit or
short circuit
☆ 3 times
O
F2
Condenser coil temperature sensor T3 open circuit or
short circuit
☆ 4 times
O
F3
Compressor discharge temperature sensor T5 open
circuit or short circuit
☆ 5 times
O
F4
Outdoor unit EEPROM parameter error
☆ 6 times
O
F5
Outdoor fan speed has been out of control
☆ 1 times
☆
P0
IPM malfunction or IGBT over-strong current protection
☆ 2 times
☆
P1
Over voltage or over low voltage protection
☆ 3 times
☆
P2
High temperature protection of compressor top
diagnosis and solution(only for 9k,12k models)
☆ 4 times
☆
P3*
Outdoor ambient temperature too low.
☆ 5 times
☆
P4
Inverter compressor drive error
☆ 6 times
☆
P5
Indoor units mode conflict (multi-zone ONLY)
9.1 Indoor Unit Error Display
O（light） X（off） ☆（flash）
*P3
1) In heating mode, when the outdoor temperature is lower than -25 for 1 hour, the indoor unit display error
code P3.
2) If the OUTDOOR temperature is higher than -22c for 10 minutes and compressor stop for 1 hour OR outdoor
temperature is higher than -5C for 10 minutes, then the unit will return to work.
Page 30
28
Error Code
E0/F4
Malfunction decision
conditions
Indoor or outdoor PCB main chip does not receive feedback
from EEPROM chip.
Supposed causes
● Installation mistake
● PCB faulty
Yes
Replace the indoor/outdoor
main PCB.
Power off, then restart the
unit 2 minutes later.
Indoor PCB
Outdoor PCB
Note: The two photos above are only for reference, it’s may be not same totally with the ones on
your side.
9.2 Outdoor unit error display(TBD)
9.3 Diagnosis and Solution
9.3.1 EEPROM parameter error diagnosis and solution(E0/F4)
Trouble shooting:
EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed
voltage. For the location of EEPROM chip, please refer to the below photos.
Page 31
29
E1
Indoor or outdoor PCB faulty
M
eas
ureVs
V
w
Measure Vs, is it positive fluctuation?
(Vs is the voltage between 2 and 3 of
outdoor unit. Red pan-3, Black pan-2)
Yes
w
Power off, then restart the unit 2 minutes later
No
w
x
Replace the outdoor main PCB.
Power on. Is the error
extinguished?
Check the outdoor wiring connection
Replace the indoor main PCB.
Power on. Is the error
extinguished?
Yes
Replace the outdoor main PCB.
No
Replace the indoor main PCB.
No
w
Check the indoor wiring connection
Yes
Yes
Check whether reactor
is normal?
Yes
Replace the reactor No
9.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1)
Error Code
Malfunction decision
conditions
Indoor unit does not receive the feedback from outdoor unit during
110 seconds and this condition happens four times continuously.
Supposed causes ● Wiring mistake
●
Trouble shooting:
*
* Vs is the voltage between S and N ( for 115V 2014 models)
*Vs is the voltage between 2 and 3 ( for 2015 models)
Page 32
30
Remark:
Use a multimeter to test the DC voltage
between 2 port and 3 port of outdoor unit.
The red pin of multimeter connects with 2
port while the black pin is for 3 port.
When AC is normal running, the voltage
will move alternately between -50V to
50V.
If the outdoor unit has malfunction, the
voltage will move alternately with positive
value.
While if the indoor unit has malfunction,
the voltage will be a certain value.
Remark:
Use a multimeter to test the resistance
of the reactor which does not connect
with capacitor.
The normal value should be around zero
ohm. Otherwise, the reactor must have
malfunction and need to be replaced.
Page 33
31
Error Code
E2
Malfunction decision
conditions
When PCB does not receive zero crossing signal feedback for 4
minutes or the zero crossing signal time interval is abnormal.
Supposed causes
● Connection mistake
● PCB faulty
Check if the connections and
power supply is normal?
Correct the connections. Turn on the
unit when the power supply is good.
No
Yes
Indoor main PCB is
defective. Replace indoor
main PCB.
9.3.3 Zero crossing detection error diagnosis and solution (E2)
Trouble shooting:
Page 34
32
Error Code
E3
Malfunction decision
conditions
When indoor fan speed keeps too low (300RPM) for certain time,
the unit will stop and the LED will display the failure.
Supposed causes
● Wiring mistake
● Fan ass’y faulty
● Fan motor faulty
● PCB faulty
Power off, then restart the
unit 2 minutes later
Shut off the power supply,
Rotate the fan by hand.
The unit operates normally.
Find out the cause and have
it solved
Check the wiring of fan
motor
No
Yes
No
Correct the connections.
No
NoReplace the fan motor
Yes
Yes
Measure the voltage for the
fan motor from the main
PCB
Yes
Replace the main PCBNo
9.3.4 Fan speed has been out of control diagnosis and solution(E3)
Trouble shooting:
Page 35
33
NO.
Color
Signal
Voltage
1
Red
Vs/Vm
280V~380V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
14-17.5V
5
Yellow
Vsp
0~5.6V
6
Blue
FG
14-17.5V
NO.
Color
Signal
Voltage
1
Red
Vs/Vm
140V~190V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
14-17.5V
5
Yellow
Vsp
0~5.6V
6
Blue
FG
14-17.5V
Index 1:
1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor)
Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor
connector. If the value of the voltage is not in the range showing in below table, the PCB must has
problems and need to be replaced.
DC motor voltage input and output(voltage: 220-240V~)
DC motor voltage input and output(voltage :115V~)
2. Outdoor DC Fan Motor (control chip is in outdoor PCB)
Power on ,and check if the fan can run normally, if the fan can run normally, the PCB must has
problems and need to be replaced, If the fan can’t run normally, measure the resistance of each two
pins. If the resistance is not equal to each other, the fan motor must have problems and need to be
replaced, otherwise the PCB must has problems and need to be replaced.
3. Indoor AC Fan Motor
Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds,
measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power
supply)or 50V(115V power supply), the PCB must has problems and need to be replaced.
Page 36
34
Error Code
E4/E5/F1/F2/F3
Malfunction decision
conditions
If the sampling voltage is lower than 0.06V or higher than 4.94V,
the LED will display the failure.
Supposed causes
● Wiring mistake
● Sensor faulty
Check the connection
between temperature
sensor and PCB.
Correct the connectionNo
Yes
Replace indoor or outdoor
main PCB
Measure the resistance
value of the sensor
Repalce the sensorNo
Yes
9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5)
Trouble shooting:
Page 37
35
Error Code
EC
Malfunction decision
conditions
Define the evaporator coil temp.T2 of the compressor just starts
running as Tcool.
In the beginning 5 minutes after the compressor starts up, if T2
＜Tcool－2°C(Tcool－35.6°F) does not keep continuous 4
seconds and this situation happens 3 times, the display area will
show “EC” and AC will turn off.
Supposed causes
● T2 sensor faulty
● Indoor PCB faulty
● System problems, such as leakage or blocking.
Check cool air blowing out
from indoor air outlet
Yes
Yes
Check if T2 sensor
No
Check leakage of system
No
Power off, then restart the
unit 2 minutes later.
Replace indoor PCB.
Yes
Repair the leakage and
recharge the refrigerant.
Yes
check blockIng of system and
clear the blocking
9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC)
Trouble shooting:
Page 38
36
Error Code
F0
Malfunction decision
conditions
An abnormal current rise is detected by checking the specified
current detection circuit.
Supposed causes
● Power supply problems.
● System blockage
● PCB faulty
● Wiring mistake
● Compressor malfunction
Check the power supply
Che ck the conne c tions and
wires
Stop the unit
No
Yes
No
Correct the connections or
replace the wires.
Yes
Replace the outdoor unit
Yes
Check the reactor
No
Replace outdoor main PCB
Check the blockage of system
Yes
No Clear the blockage
Check the compressor
resistance values
Yes
No Replace the compressor
9.3.6 Overload current protection diagnosis and solution(F0)
Page 39
37
Error Code
P0
Malfunction decision
conditions
When the voltage signal that IPM send to compressor drive chip
is abnormal, the display LED will show “P0” and AC will turn off.
Supposed causes
● Wiring mistake
● IPM malfunction
● Outdoor fan ass’y faulty
● Compressor malfunction
● Outdoor PCB faulty
Check the wiring between main PCB
and compressor
Correct the connection or replace
the wires and connectors.
Yes
No
Check the IPM No
Yes
Replace the IPM board or replace
the main PCB
Check the outdoor fan and the
outdoor unit ventilation
No
Please refer to the solution of 【Fan
Speed Has Been Out Of Control】
malfunction
Yes
Check the compressor resistance
values
No
Replace the compressor.
Yes
Replace the outdoor main PCB
9.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)
Trouble shooting:
Page 40
38
P-U
P-V
side.
For example:
Note: The photos below are only for reference, it’s may be not same totally with the ones on your
Page 41
39
P-W
N-U
Page 42
40
N-V
N-W
Page 43
41
Error Code
P1
Malfunction decision
conditions
An abnormal voltage rise or drop is detected by checking the
specified voltage detection circuit.
Supposed causes
● Power supply problems.
● System leakage or block
● PCB faulty
Check the power supply
Che ck the conne c tions and
wires
Stop the unit
No
Yes
No
Correct the connections or
replace the wires.
Yes
Replace the reactor
Yes
No
Replace the IPM board
Check the voltage between P
and N
Check the reactor
Yes
No
Replace outdoor main PCB
Remark:
Measure the DC voltage
between P and N port. The
normal value should be
around 310V.
P
N
9.3.8 Over voltage or too low voltage protection diagnosis and solution(P1)
Trouble shooting:
Page 44
42
Error Code
P2
Malfunction decision
conditions
If the sampling voltage is not 5V, the LED will display the failure.
Supposed causes
● Power supply problems.
● System leakage or block
● PCB faulty
Check the air flow system
of indoor and outdoor units
Clear up the air inlet and outlet or the heat
exchanger of indoor and outdoor units.
Yes
No
Yes
Yes
Power off, then restart the unit 10
minutes later
Check if the temperature
of compressor
No
Check refrigerant system
Yes
Check the overload
protector
Correct the connection.No
Measure the resistance
between the two ports of
the OLP. Is it zero?
Yes
Replace the OLP.
No
Replace the outdoor control PCB.
Yes
9.3.9 High temperature protection of compressor top diagnosis and solution(P2)
Trouble shooting:
Page 45
43
Error Code
P4
Malfunction decision
conditions
An abnormal inverter compressor drive is detected by a special
detection circuit, including communication signal detection,
voltage detection, compressor rotation speed signal detection
and so on.
Supposed causes
● Wiring mistake
● IPM malfunction
● Outdoor fan ass’y faulty
● Compressor malfunction
● Outdoor PCB faulty
Check the wiring between main PCB
and compressor
Correct the connection or replace
the wires and connectors.
Yes
No
Check the IPM No
Yes
Replace the IPM board or replace
the main PCB
Check the outdoor fan and the
outdoor unit ventilation
No
Please refer to the solution of 【Fan
Speed Has Been Out Of Control】
malfunction
Yes
Check the compressor resistance
values
No
Replace the compressor.
Yes
Replace the outdoor main PCB
9.3.10 Inverter compressor drive error diagnosis and solution(P4)
Trouble shooting:
Page 46
44
Main parts check
1. Temperature sensor checking
Disconnect the temperature sensor from PCB, measure the resistance value with a tester.
Temperature sensors.
Room temp.(T1) sensor,
Indoor coil temp.(T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor discharge temp.(T5) sensor.
Measure the resistance value of each winding by using the multi-meter.
Page 47
45
°C
°F
K Ohm
°C
°F
K Ohm
°C
°F
K Ohm
°C
°F
K Ohm
-20
-4
115.266
20
68
12.6431
60
140
2.35774
100
212
0.62973
-19
-2
108.146
21
70
12.0561
61
142
2.27249
101
214
0.61148
-18 0 101.517
22
72
11.5
62
144
2.19073
102
216
0.59386
-17 1 96.3423
23
73
10.9731
63
145
2.11241
103
217
0.57683
-16 3 89.5865
24
75
10.4736
64
147
2.03732
104
219
0.56038
-15 5 84.219
25
77
10
65
149
1.96532
105
221
0.54448
-14 7 79.311
26
79
9.55074
66
151
1.89627
106
223
0.52912
-13 9 74.536
27
81
9.12445
67
153
1.83003
107
225
0.51426
-12
10
70.1698
28
82
8.71983
68
154
1.76647
108
226
0.49989
-11
12
66.0898
29
84
8.33566
69
156
1.70547
109
228
0.486
-10
14
62.2756
30
86
7.97078
70
158
1.64691
110
230
0.47256
-9
16
58.7079
31
88
7.62411
71
160
1.59068
111
232
0.45957
-8
18
56.3694
32
90
7.29464
72
162
1.53668
112
234
0.44699
-7
19
52.2438
33
91
6.98142
73
163
1.48481
113
235
0.43482
-6
21
49.3161
34
93
6.68355
74
165
1.43498
114
237
0.42304
-5
23
46.5725
35
95
6.40021
75
167
1.38703
115
239
0.41164
-4
25
44
36
97
6.13059
76
169
1.34105
116
241
0.4006
-3
27
41.5878
37
99
5.87359
77
171
1.29078
117
243
0.38991
-2
28
39.8239
38
100
5.62961
78
172
1.25423
118
244
0.37956
-1
30
37.1988
39
102
5.39689
79
174
1.2133
119
246
0.36954
0
32
35.2024
40
104
5.17519
80
176
1.17393
120
248
0.35982
1
34
33.3269
41
106
4.96392
81
178
1.13604
121
250
0.35042
2
36
31.5635
42
108
4.76253
82
180
1.09958
122
252
0.3413
3
37
29.9058
43
109
4.5705
83
181
1.06448
123
253
0.33246
4
39
28.3459
44
111
4.38736
84
183
1.03069
124
255
0.3239
5
41
26.8778
45
113
4.21263
85
185
0.99815
125
257
0.31559
6
43
25.4954
46
115
4.04589
86
187
0.96681
126
259
0.30754
7
45
24.1932
47
117
3.88673
87
189
0.93662
127
261
0.29974
8
46
22.5662
48
118
3.73476
88
190
0.90753
128
262
0.29216
9
48
21.8094
49
120
3.58962
89
192
0.8795
129
264
0.28482
10
50
20.7184
50
122
3.45097
90
194
0.85248
130
266
0.2777
11
52
19.6891
51
124
3.31847
91
196
0.82643
131
268
0.27078
12
54
18.7177
52
126
3.19183
92
198
0.80132
132
270
0.26408
13
55
17.8005
53
127
3.07075
93
199
0.77709
133
271
0.25757
14
57
16.9341
54
129
2.95896
94
201
0.75373
134
273
0.25125
15
59
16.1156
55
131
2.84421
95
203
0.73119
135
275
0.24512
16
61
15.3418
56
133
2.73823
96
205
0.70944
136
277
0.23916
17
63
14.6181
57
135
2.63682
97
207
0.68844
137
279
0.23338
18
64
13.918
58
136
2.53973
98
208
0.66818
138
280
0.22776
19
66
13.2631
59
138
2.44677
99
210
0.64862
139
282
0.22231
Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (°C--K)
Page 48
46
°C
°F
K Ohm
°C
°F
K Ohm
°C
°F
K Ohm
°C
°F
K Ohm
-20
-4
542.7
20
68
68.66
60
140
13.59
100
212
3.702
-19
-2
511.9
21
70
65.62
61
142
13.11
101
214
3.595
-18
0
483
22
72
62.73
62
144
12.65
102
216
3.492
-17
1
455.9
23
73
59.98
63
145
12.21
103
217
3.392
-16
3
430.5
24
75
57.37
64
147
11.79
104
219
3.296
-15
5
406.7
25
77
54.89
65
149
11.38
105
221
3.203
-14
7
384.3
26
79
52.53
66
151
10.99
106
223
3.113
-13
9
363.3
27
81
50.28
67
153
10.61
107
225
3.025
-12
10
343.6
28
82
48.14
68
154
10.25
108
226
2.941
-11
12
325.1
29
84
46.11
69
156
9.902
109
228
2.86
-10
14
307.7
30
86
44.17
70
158
9.569
110
230
2.781
-9
16
291.3
31
88
42.33
71
160
9.248
111
232
2.704
-8
18
275.9
32
90
40.57
72
162
8.94
112
234
2.63
-7
19
261.4
33
91
38.89
73
163
8.643
113
235
2.559
-6
21
247.8
34
93
37.3
74
165
8.358
114
237
2.489
-5
23
234.9
35
95
35.78
75
167
8.084
115
239
2.422
-4
25
222.8
36
97
34.32
76
169
7.82
116
241
2.357
-3
27
211.4
37
99
32.94
77
171
7.566
117
243
2.294
-2
28
200.7
38
100
31.62
78
172
7.321
118
244
2.233
-1
30
190.5
39
102
30.36
79
174
7.086
119
246
2.174
0
32
180.9
40
104
29.15
80
176
6.859
120
248
2.117
1
34
171.9
41
106
28
81
178
6.641
121
250
2.061
2
36
163.3
42
108
26.9
82
180
6.43
122
252
2.007
3
37
155.2
43
109
25.86
83
181
6.228
123
253
1.955
4
39
147.6
44
111
24.85
84
183
6.033
124
255
1.905
5
41
140.4
45
113
23.89
85
185
5.844
125
257
1.856
6
43
133.5
46
115
22.89
86
187
5.663
126
259
1.808
7
45
127.1
47
117
22.1
87
189
5.488
127
261
1.762
8
46
121
48
118
21.26
88
190
5.32
128
262
1.717
9
48
115.2
49
120
20.46
89
192
5.157
129
264
1.674
10
50
109.8
50
122
19.69
90
194
5
130
266
1.632
11
52
104.6
51
124
18.96
91
196
4.849
12
54
99.69
52
126
18.26
92
198
4.703
13
55
95.05
53
127
17.58
93
199
4.562
14
57
90.66
54
129
16.94
94
201
4.426
15
59
86.49
55
131
16.32
95
203
4.294
16
61
82.54
56
133
15.73
96
205
4.167
17
63
78.79
57
135
15.16
97
207
4.045
18
64
75.24
58
136
14.62
98
208
3.927
19
66
71.86
59
138
14.09
99
210
3.812
Appendix 2 Temperature Sensor Resistance Value Table for T5 (°C --K)
Page 49
47
°C
°F
°C
°F
°C
°F
°C
°F
°C
°F
-5
23
21
69.8
51
123.8
82
179.6
113
235.4
-4
24.8
22
71.6
52
125.6
83
181.4
114
237.2
-3
26.6
23
73.4
53
127.4
84
183.2
115
239
-2
28.4
24
75.2
54
129.2
85
185
116
240.8
-1
30.2
25
77
55
131
86
186.8
117
242.6 0 32
25.5
77.9
56
132.8
87
188.6
118
244.4
0.5
32.9
26
78.8
57
134.6
88
190.4
119
246.2 1 33.8
27
80.6
58
136.4
89
192.2
120
248
1.5
34.7
28
82.4
59
138.2
90
194
121
249.8
2
35.6
29
84.2
60
140
91
195.8
122
251.6
2.5
36.5
30
86
61
141.8
92
197.6
123
253.4
3
37.4
31
87.8
62
143.6
93
199.4
124
255.2
3.5
38.3
32
89.6
63
145.4
94
201.2
125
257
4
39.2
33
91.4
64
147.2
95
203
126
258.8
4.5
40.1
34
93.2
65
149
96
204.8
127
260.6 5 41
35
95
66
150.8
97
206.6
128
262.4
6
42.8
36
96.8
67
152.6
98
208.4
129
264.2 7 44.6
37
98.6
68
154.4
99
210.2
130
266 8 46.4
38
100.4
69
156.2
100
212
131
267.8 9 48.2
39
102.2
70
158
101
213.8
132
269.6
10
50
40
104
71
159.8
102
215.6
133
271.4
11
51.8
41
105.8
72
161.6
103
217.4
134
273.2
12
53.6
42
107.6
73
163.4
104
219.2
135
275
13
55.4
43
109.4
74
165.2
105
221
136
276.8
14
57.2
44
111.2
75
167
106
222.8
137
278.6
15
59
45
113
76
168.8
107
224.6
138
280.4
16
60.8
46
114.8
77
170.6
108
226.4
139
282.2
17
62.6
47
116.6
78
172.4
109
228.2
140
284
18
64.4
48
118.4
79
174.2
110
230
141
285.8
19
66.2
49
120.2
80
176
111
231.8
142
287.6
20
68
50
122
81
177.8
112
233.6
143
289.4
Appendix 3:
Page 50
48
2.Compressor checking
Measure the resistance value of each winding by using the tester.
Position Resistance Value
Blue - Red
Blue - Black
Red - Blue
ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT
1.57Ω
1.75 Ω
0.75 Ω
0.75 Ω
Page 51
49
Digital tester
Normal resistance value
Digital tester
Normal resistance value
(+)Red
(-)Black
(Several M)
(+)Red
(-)Black
(Several M)
P
N
U N U V V W W
(+)Red
Model
YKT-32-6-202L
YKT-32-6-3L
YKT-48-6-206
YKT-63-6-200L
Brand
Tongde
Welling
Welling
Welling
Black – Red
Main
86
213
152
88.5
Blue –Black
AUX
64
156
142
138
3. IPM continuity check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital
tester to measure the resistance between P and UVWN; UVW and N.
4: Indoor outdoor Fan Motor
Measure the resistance value of each winding by using the tester.
Page 52
50
°F(°C)
ODT
IDT
75
(23.89)
85
(29.44)
95
(35)
105
(40.56)
115
(46.11)
BAR
70/59
8.2
7.8
8.1
8.6
10.1
BAR
75/63
8.6
8.3
8.7
9.1
10.7
BAR
80/67
9.3
8.9
9.1
9.6
11.2
°F(°C)
ODT
IDT
75
(23.89)
85
(29.44)
95
(35)
105
(40.56)
115
(46.11)
PSI
70/59
119
113
117
125
147
PSI
75/63
124
120
126
132
155
PSI
80/67
135
129
132
140
162
°F(°C)
ODT
IDT
75
(23.89)
85
(29.44)
95
(35)
105
(40.56)
115
(46.11)
MPA
70/59
0.82
0.78
0.81
0.86
1.01
MPA
75/63
0.86
0.83
0.87
0.91
1.07
MPA
80/67
0.93
0.89
0.91
0.96
1.12
0,0
2,0
4,0
6,0
8,0
10,0
12,0
75 （23.89） 85 （29.44） 95 （35） 105 （40.56） 115 （46.11）
70/59
75/63
80/67
5: Pressure On Service Port
Cooling chart:
Page 53
51
Heating Chart:
°F
(°C)
ODT
IDT
57/53
(13.89/11.67)
47/43
(8.33/6.11)
37/33
(2.78/0.56)
27/23
(-2.78/-5)
17/13
(-8.33/-10.56)
BAR
55
30.3
28.5
25.3
22.8
20.8
BAR
65
32.5
30.0
26.6
25.4
23.3
BAR
75
33.8
31.5
27.8
26.3
24.9
°F
(°C)
ODT
IDT
57/53
(13.89/11.67)
47/43
(8.33/6.11)
37/33
(2.78/0.56)
27/23
(-2.78/-5)
17/13
(-8.33/-10.56)
PSI
55
439
413
367
330
302
PSI
65
471
435
386
368
339
PSI
75
489
457
403
381
362
°F
(°C)
ODT
IDT
57/53
(13.89/11.67)
47/43
(8.33/6.11)
37/33
(2.78/0.56)
27/23
(-2.78/-5)
17/13
(-8.33/-10.56)
MPA
55
3.03
2.85
2.53
2.28
2.08
MPA
65
3.25
3.00
2.66
2.54
2.33
MPA
75
3.38
3.15
2.78
2.63
2.49
0,0
5,0
10,0
15,0
20,0
25,0
30,0
35,0
40,0
57/53
(13.89/11.67)
47/43
(8.33/6.11)
37/33
(2.78/0.56)
27/23
(-2.78/-5)
17/13
(-8.33/-10.56)
55
65
75
Page 54
The Klimaire logo is a registered Trademark of Klimaire Products Inc.
Copyright 2016 Klimaire Products Inc.
2190 NW 89 Place, Doral, FL 33172 - USA
Tel: (305)593-8358
www.klimaire.com
The design and specifications are subject to change without prior notice for product
improvement. Consult with the sales agency or manufacturer for details.
Fax (305) 675-2212
sales@klimaire.com
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