• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating ofthe power plug and
main circuit for the model installed.
• The caution items stated here must be followed because theseimportant contents are related tosafety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of theinstruction will cause harm or damage, and
the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
• The items to be followed are classified by the symbols:
This symbol denotes item that is PROHIBITTED from doing.
• Carry out test running to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Pleaseremind the customer to keepthe operatinginstructions for future reference.
1. Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.
2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.
4.Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done,
the set will drop and cause injury.
5.For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
6.This equipment is strongly recommended to install with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD).
Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.
7.Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be
acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
8.Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause
heat-up or fire at the connection point of terminal, fire or electrical shock.
9.When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosive and injury.
10.Do not install outdoor unit near handrail of veranda. When installing air-conditionerunit at veranda of high rise building, child may climb up to
outdoor unit and cross over the handrail and causing accident.
2
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11. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.
12. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle.
Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and
injury.
13. Do not damage or use unspecified power supply cord. Otherwise it will cause fire or electric shock.
14. Do not modify the length of the power supply cord or use extension cord, and do not share the single outlet with other electric
appliances. Otherwise, it will cause fire or electric shock.
15. It is desirable that the amount of residual oil is less than 40 mg/10m.
Thickness of copper pipes used with R410A must be more than 0.6 mm. Never use copper pipes thinner than 0.6 mm.
16. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping,
setting the valves at open condition, a burst may occur and cause injury.
17. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the
unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may
break and cause refrigerant gas leakage.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50qF – 70qF (30qC – 40qC) higher. Please use
a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20qF (370 ± 10qC).
Pb free solder will tend to splash when heated too high (about 1100qF / 600qC).
7. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following
methods.
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries,
permanent connection of this room air conditioner to the power supply is prohibited.
i. Powersupply connection to the receptacle using a powerplug. Use an approved power plugwith earth pin for the connectionto the socket.
ii. Power supply connection to a circuit breaker for the permanent connection. Use an approved circuit breaker for the permanent connection.
It must be a double pole switch with a minimum 3.5 mm contact gap.
8. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts. Take care of the liquid refrigerant, it may cause frostbite.
9.Installation work: It may need two people to carry out the installation work.
10.Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
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2Specifications
2.1.CS-TE9HKE-5 CU-TE9HKE-5
ITEMUNITINDOOR UNITOUTDOOR UNIT
Performance Test ConditionEUROVENT
C
Capacity
O
O
L
EER
I
N
G
Noise Level
H
Capacity
E
A
T
COP
I
N
G
Noise Level
Moisture Removal
Q-Lo
Lo
Air Volume
Me
Hi
Refrigeration Control Device—Expansion Valve
Refrigeration Oil
Refrigerant (R410A)g (oz)—970 (34.2)
Heightmm (inch)298 (11-3/4)540 (21-9/32)
Dimension
Net Weightkg (lbs)8 (18)34 (75)
Pipe Diameter
Standard Lengthm (ft)7.5 (24.6)
Pipe Length Rangem (ft)3 (9.8) ~ 15 (49.2)
Height Differencem (ft)5 (16.4)
Additional Gas Amountg/m (oz/ft)20 (0.2)
Refrigeration Charge Lessm (ft)7.5 (24.6)
Drain Hose
Compressor
Widthmm (inch)799 (31-15/32)780 (30-23/32)
Depthmm (inch)139 (5-1/2)289 (11-13/32)
Gasmm (inch)9.52 (3/8)
Liquidmm (inch)6.35 (1/4)
Inner Diametermm16—
Lengthmm650—
Type—Hermetic Motor
Motor Type—Brushless (6-pole)
Rated OutputW—700
kW2.50 (0.80 ~ 3.00)
kCal/h2150 (690 ~ 2580)
Btu/h8530 (2730 ~ 10200)
W/W4.39 (4.57 ~ 4.11)
kcal/hW3.77 (3.94 ~ 3.53)
dB-A (H/L/Q-Lo)39/26/23High 46
Power level dB5059
kW3.60 (0.80 ~ 4.60)
kCal/h3100 (690 ~ 3960)
Btu/h12300 (2730 ~ 1570)
W/W4.14 (4.85 ~ 4.00)
kcal/hW3.56 (4.18 ~ 3.44)
dB-A (H/L/Q-Lo)40/27/24High 47
Power level dB5160
l/h1.5
pt/h3.2
3
/min (ft3/min)
m
3
/min (ft3/min)
m
3
/min (ft3/min)
m
3
m
/min (ft3/min)
cm
3
Cooling; 4.7 (166)
Heating; 5.8 (205)
Cooling; 5.3 (187)
Heating; 6.2 (219)
Cooling; 7.2 (254)
Heating; 8.4 (297)
Cooling; 9.2 (320)Cooling; 29.8 (1050)
Heating; 10.7 (380)Heating; 29.8 (1050)
—RB68A or Freol Alpha68M (320)
—
—
—
4
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ITEMUNITINDOOR UNITOUTDOOR UNIT
TypeCross-Flow FanPropeller Fan
MaterialASG20K1 or ASG32K1PP
Motor TypeTransistor (8-pole)Induction (6-pole)
Input PowerW30—
Fan
Heat Exchanger
Air Filter
Output PowerW3025
Lo (Cool/Heat)rpm 910 / 980—
Fan Speed
Fin MaterialAluminium (Pre Coat)Aluminium
Fin TypeSlit FinCorrugated Fin
Row x Stage x FPI2.1 x 11.4 x 232 x 24 x 17
Size (W x H x L)mm640 x 304 x 25.4
MaterialPolypropelene—
TypeOne-Touch—
Me (Cool/Heat)rpm1130 / 1240—
Hi (Cool/Heat)rpm1370 / 1510770 / -
SHi (Cool/Heat)rpm1430 / -—
36.4 x 504 x 713
684
1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air
temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)
2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF
D.B.), 6qC W.B. (42.8qF W.B.)
ItemUnit
øSingle
Power Source (Phase, Voltage, Cycle)
Input PowerW
Starting CurrentA4.0
Running CurrentA
Maximum currentA5.3
Power Factor%
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
ThermostatElectrical
Protection Device—
Annual ConsumptionkWh285
Number of core3 (1.0mm)
Lengthm (ft)1.5 (5)
V230
Hz50
Cooling; 570 (175 ~ 730)
Heating; 870 (165 ~ 1.15k)
Cooling; 2.6
Heating; 4.0
Cooling; 95
Heating; 95
Note
•Specifications are subject tochange without notice for further improvement.
5
Page 6
2.2.CS-TE12HKE-5 CU-TE12HKE-5
ITEMUNITINDOOR UNITOUTDOOR UNIT
Performance Test ConditionEUROVENT
C
Capacity
O
O
L
EER
I
N
G
Noise Level
H
Capacity
E
A
T
COP
I
N
G
Noise Level
Moisture Removal
Q-Lo
Lo
Air Volume
Me
Hi
Refrigeration Control Device—Expansion Valve
Refrigeration Oil
Refrigerant (R410A)g (oz)—1.04k (36.7)
Heightmm (inch)298 (11-3/4)540 (21-9/32)
Dimension
Widthmm (inch)799 (31-15/32)780 (30-23/32)
Depthmm (inch)139 (5-1/2)289 (11-13/32)
Net Weightkg (lbs)8 (18)34 (75)
Pipe Diameter
Gasmm (inch)12.7 (1/2)
Liquidmm (inch)6.35 (1/4)
Standard Lengthm (ft)7.5 (24.6)
Pipe Length Rangem (ft)3 (9.8) ~ 15 (49.2)
Height Differencem (ft)5 (16.4)
Additional Gas Amountg/m (oz/ft)20 (0.2)
Refrigeration Charge Lessm (ft)7.5 (24.6)
Drain Hose
Inner Diametermm16—
Lengthmm650—
Type—Hermetic Motor
Compressor
Motor Type—Brushless (6-pole)
Rated OutputW—700
TypeCross-Flow FanPropeller Fan
MaterialASG20K1 or ASG32K1PP
Motor TypeTransistor (8-pole)Induction (6-pole)
Input PowerW30—
Fan
Output PowerW3030
Lo (Cool/Heat)rpm 1050 / 1200—
Fan Speed
Me (Cool/Heat)rpm1270 / 1380—
Hi (Cool/Heat)rpm1500 / 1560830 / -
SHi (Cool/Heat)rpm1560 / -—
kW3.50 (0.80 ~ 4.00)
kCal/h3010 (690 ~ 3440)
Btu/h11900 (2730 ~ 13600)
W/W3.68 (4.32 ~ 3.42)
kCal/hW3.17 (3.73 ~ 2.94)
dB-A (H/L/Q-Lo)42/29/26High 48
Power level dB5361
kW4.20 (0.80 ~ 5.50)
kCal/h3610 (690 ~ 4730)
Btu/h14300 (2730 ~ 18800)
W/W3.96 (4.57 ~ 3.67)
Btu/hW3.41 (3.94 ~ 3.15)
dB-A (H/L/Q-Lo)42/33/30High 50
Power level dB5363
l/h2.0
pt/h4.2
3
/min (ft3/min)
m
3
/min (ft3/min)
m
3
m
/min (ft3/min)
3
m
/min (ft3/min)
cm
3
Cooling; 5.4 (191)
Heating; 7.3 (258)
Cooling; 8.1 (215)
Heating; 8.2 (290)
Cooling; 9.0 (318)
Heating; 9.7 (342)
—
—
—
Cooling; 9.9 (350)Cooling; 31.0 (1090)
Heating; 11.2 (400)Heating; 31.0 (1090)
—RB68A or Freol Alpha68M (320)
6
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ITEMUNITINDOOR UNITOUTDOOR UNIT
Fin MaterialAluminium (Pre Coat)Aluminium
Fin TypeSlit FinCorrugated Fin
Heat Exchanger
Air Filter
Row x Stage x FPI2.1 x 11.4 x 232 x 24 x 17
Size (W x H x L)mm640 x 304 x 25.4
MaterialPolypropelene—
TypeOne-Touch—
36.4 x 504 x 713
684
1. Cooling capacities are based on indoor temperature of 27qC D.B. (80.6qF D.B.), 19.0qC W.B. (66.2qF W.B.) and outdoor air
temperature of 35qC D.B. (95qF D.B.), 24qC W.B. (75.2qF W.B.)
2. Heating capacities are based on indoor temperature of 20qC D.B. (68qF D.B.) and outdoor air temperature of 7qC D.B. (44.6qF
D.B.), 6qC W.B. (42.8qF W.B.)
ItemUnit
øSingle
Power Source (Phase, Voltage, Cycle)
Input PowerW
Starting CurrentA4.9
Running CurrentA
Maximum currentA6.9
Power Factor%
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
ThermostatElectrical
Protection Device—
Annual ConsumptionkWh475
Number of core3 (1.0mm)
Lengthm (ft)1.5 (5)
V230
Hz50
Cooling; 950 (185 ~ 1.17k)
Heating; 1.06k (175 ~ 1.50k)
Cooling; 4.4
Heating; 4.9
Cooling; 94
Heating; 94
Note
• Specifications are subject tochange without notice for further improvement.
7
Page 8
3Features
• Inverter Technology
- Wider output power range
- Energy saving
- Quick cooling
- Quick heating
- More precise temperature control
• Super Alleru-buster Filter
- Filter inactive various harmful airborne elements including allergens and bacteria
- Random auto restart after power failure for safety restart operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect compressor
- Noise prevention during soft dry operation
• Operation Improvement
- Quiet mode to reduce the indoor unit operating sound
- Powerful mode to reach the desired room temperature quickly
- 24-hour timer setting
• Serviceability Improvement
- Breakdown Self Diagnosis function
8
Page 9
4Location of Controls and Components
4.1.Product Overview
4.1.1.Indoor Unit
4.1.2.Outdoor Unit
4.1.3.Remote Control
9
Page 10
5Dimensions
5.1.Indoor Unit
10
Page 11
5.2.Outdoor Unit
11
Page 12
6Refrigeration Cycle Diagram
12
Page 13
7Block Diagram
13
Page 14
8Wiring Connection Diagram
8.1.Indoor Unit
14
Page 15
8.2.Outdoor Unit
15
Page 16
9Electronic Circuit Diagram
9.1.Indoor Unit
16
Page 17
9.2.Outdoor Unit
17
Page 18
10 Printed Circuit Board
10.1.Indoor Unit
10.1.1.Printed Circuit Board
18
Page 19
10.2.Outdoor Unit
10.2.1.Main Printed Circuit Board
19
Page 20
11 Installation Instruction
11.1.Select The Best Location
INDOOR UNIT
• Do not install the unit in excessive oil fume area such as
kitchen, workshop and etc.
• There should not be any heat source or steam near the unit.
• There should not be any obstacles blocking the air
circulation.
• A place where air circulation in the room is good.
• A place where drainage can be easily done.
• A place where noise prevention is taken into consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles.
• Recommended installation height for indoor unit shall be at
least 2.5 m.
OUTDOOR UNIT
• If an awning is built over the unit to prevent direct sunlight or
rain, be careful that heat radiation from the condenser is not
obstructed.
• There should not be any animal or plant which could be
affected by hot air discharged.
• Keep the spaces indicated by arrows from wall, ceiling,
fence or other obstacles.
• Do not place any obstacles which may cause a short circuit
of the discharged air.
• If piping length is over the rated length, additional refrigerant
should be added as shown in the table.
11.2.Indoor/Outdoor Unit
Installation Diagram
Model
TE9HKE-5 3/8” 1/4”7.5531520
TE12HKE-5 1/2” 1/4”7.5531520
Example: For TE9HKE-5
If the unit is installed at 10 m distance, the quantity of additional
refrigerant should be 50g ...... (10 - 7.5) m x 20 g/m = 50 g
Piping size
Gas Liquid
Rated
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length (m)
Additional
Refrigerant
(g/m)
20
Page 21
11.3.Indoor Unit
11.3.1.HOW TO FIX INSTALLATION PLATE
The mounting wall is strong and solid enough to prevent it from
the vibration.
The centre of installation plate should be at more than 450 mm
at right of the wall.
The centre of installation plate should be at more than 450 mm
at left of the wall.
The distance from installation plate edge to ceiling should more
than 66 mm.
From installation plate left edge to unit’s left side is 20 mm.
From installation plate right edge to unit’s right is 70 mm.
: For left side piping, piping connection for liquid should be this
line.
: For left side piping, piping connection for gas should be about
50 mm from this line.
: For left side piping, piping connection cable should be about
750 mm from this line.
11.3.2.TO DRILL A HOLE IN THE WALL
AND INSTALL A SLEEVE OF
PIPING
1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15mm from the
wall.
Caution
When the wall is hollow, please be sure to use the
sleeve for tube ass’y to prevent dangers caused by
mice biting the connecting cable.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
1. Mount the installation plate on the wallwith5screws or
more.
(If mounting the unit on the concrete wall, consider using
anchor bolts.)
• Always mount the installation plate horizontally by
aligning the marking-off line with the thread and using a
level gauge.
2. Drill the piping plate hole with ø70mm hole-core drill.
• The center of the right piping hole is at the intersection of
lines extending vertically from the edge of the installationplate and horizontally from the sideways arrow on theinstallationplate (see figure above).
•The center of the left piping hole is at the intersectionoflines extending vertically from the downward arrow onthe installation plateand horizontally from thesidewaysarrow on the installation plate (see figure above).
•Drill the piping hole at either the right orthe left and thehole should be slightly slanted to the outdoor side.
11.3.3.INDOOR UNIT INSTALLATION
1.For the right rearpiping
2.For the right and right bottom piping
21
Page 22
3. For the embedded piping
(This can be used for left rear piping and left bottom pipingalso.)
22
Page 23
11.3.4.CONNECT THE CABLE TO THE INDOOR UNIT
1. The inside and outside connecting cable can be connected without removing the front grille.
2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 u 1.5 mm
cord, type designation 245 IEC 57 (H05RN-F) or heavier cord.
• Ensure the colour of wires of outdoor unit and the terminal Nos. are the same totheindoor’s respectively.
• Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety incaseof the slipping
out of the cord from the anchorage.
• Secure the cable onto the control board with the holder (clamper).
11.3.4.1.WIRE STRIPPING AND CONNECTING REQUIREMENT
2
flexible
11.3.4.2.HOW TO CONNECT WIRE TO TERMINAL NO 4(L)
23
Page 24
11.4.Outdoor Unit
11.4.1.INSTALL THE OUTDOOR UNIT
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and
horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly
with bolt or nails.
ModelABCD
TE9HKE-5, TE12HKE-5570mm105mm18.5mm320mm
11.4.2.CONNECTING THE PIPING
Connecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portion of tube assembly) ontothe copper pipe
(in case of using long piping).
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated inthe table.
Model
TE9HKE-53/8” [42 N
TE12HKE-51/2” [55 N
Do not over tighten, over tightening cause gas leakage.
Piping size (Torque)
GasLiquid
O
m]1/4” [18 NOm)
O
m]1/4” [18 NOm)
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut
(locate at valve) onto the copper pipe.
Align center of piping to valves and thentighten with torque wrenchto the specified torque as statedinthetable.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter andthen remove the burrs.
2. Remove theburrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3. Please make flare after inserting the flare nut onto thecopper pipes.
24
Page 25
11.4.3.EVACUATION OF THE EQUIPMENT
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the
following procedure.
1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.
• Be sure to connect the end of the charging hose with the pushpin totheserviceport.
2. Connect the center hose of the charging set to a vacuum pumpwith check valve, or vacuum pumpand vacuum pump
adaptor.
3. Turn on the power switch of the vacuum pump and make sure that the needleinthegaugemoves from 0cmHg (0 MPa) to
-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.
4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not
move after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.
5. Disconnect the charging hose from the vacuum pumpand from the service port of the 3-way valve.
6. Tighten the service port caps of the 3-way valve at a torque of 18 N
7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal
wrench (4 mm).
8. Mount valve caps ontothe 2-way valve and the 3-way valve.
• Be sure to check for gas leakage.
O
m with a torque wrench.
CAUTION
• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg(-0.1 MPa), in step above take the following measure:
• If the leak stops when the piping connections are tightened further, continue working from step.
• If the leak does not stop when the connections are retightened, repair the location of leak.
•Do not release refrigerant during pipingwork for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.
11.4.4.CONNECT THE CABLE TO THE OUTDOOR UNIT
1.Removethe controlboard cover from the unit by loosening the screw.
2.Connectingcable between indoor unit and outdoor unit shall beapproved polychloroprene sheathed 5 x 1.5 mm
cord, typedesignation 245 IEC 57 (H05RN-F) or heavier cord.
3.Secure the cable onto the control board with theholder (clamper).
4.Attach the controlboard cover in its original position with thescrew.
5.For wire stripping and connection requirement, refer to page 23 ofindoor unit.
2
flexible
25
Page 26
11.4.5.PIPE INSULATION
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit InstallationDiagram. Please wrap
the insulated piping end to prevent water from going inside the piping.
2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E
FOAM with thickness 6 mm or above.
26
Page 27
12 Operation and Control
12.1.Basic Function
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal setting temperature and intake air temperature.
12.1.1.Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These
shifting processes are depending on the air conditioner settings and the operation environment. The final shiftedvalue willbe used
as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
12.1.2.Cooling Operation
12.1.2.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5qC.
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - InternalSetting Temperature > Compressor OFF
point +0.5qC.
12.1.3.Soft Dry Operation
12.1.3.1.Thermostat control
•Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2qC.
•Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - InternalSetting Temperature > Compressor OFF
point +0.5qC.
12.1.4.Heating Operation
12.1.4.1.Thermostat control
•Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +1.5qC.
•Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - InternalSetting Temperature < Compressor OFF
point -0.5qC.
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12.1.5.Automatic Operation
• This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control
operation mode, indoor intake air temperature and outdoor air temperature.
• During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to
detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.
Every 30 minutes, the indoor and outdoor temperature is judged. Based on remote control setting temperature, the value ofT1 will
increase up to 10qC, T2 will decreased by 3qC and T3 will decreased upto 8qC.
The Auto Operation Mode shifting will take place whenever operation mode changed from Cooling/Soft Dry to Heating or vice
versa.
12.1.6.Indoor Fan Motor Operation
A. Basic Rotation Speed (rpm)
i. Manual Fan Speed
[Cooling, Dry]
• Fan motor’s number of rotation is determinedaccordingto remote control setting.
Remote ControlOOOOOO
TabHiMe+MeMe-LoQLo
[Heating]
• Fan motor’s number of rotation is determinedaccordingto remote control setting.
Remote ControlOOOOOO
TabSHiMe+MeMe-LoQLo
ii. Auto Fan Speed
[Cooling, Dry]
• According toroom temperature and setting temperature, indoor fan speedis determined automatically.
•The indoor fan willoperate according to patternbelow.
[Heating]
•According toindoor pipe temperature, automatic heating fan speed isdeterminedautomatically.
B. Feedbackcontrol
•Immediately after thefanmotor started, feedback control is performed once every second.
•During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter
increase, fanmotor is then stop and restart. If thefanmotor counter becomes 7 times, then H19 - fan motor error is detected.
Operation stops and cannot onback.
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12.1.7.Outdoor Fan Motor Operation
Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30 seconds after
compressor stops operation.
12.2.Airflow Direction
1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).
2. Control of airflow direction can be automatic (angles of direction is determinedby operation mode, heat exchanger
temperature and intake air temperature) and manual (angles of direction can be adjusted usingremote control).
12.2.1.Vertical Airflow
Operation ModeAirflow DirectionVane Angle (q)
12345
HeatingAuto with Heat Exchanger
Temperature
Manual420355166
Cooling and e-ionAuto12 ~ 40
Manual1219263340
Soft DryAuto12
Manual1219263340
A28
B45
C28
1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated
above. For heating mode operation, the angle of thevane depands onthe indoor heat exchanger temperature as Figure 1
below. When the air conditioner isstopped usingremotecontrol, the vanewill shift to close position.
2. Manual vertical airflow directioncan be set usingremotecontrol; the angles of the vane are as statedabove and the positions
of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vanewill shift toclose
position.
12.2.2.Horizontal Airflow
•The horizontal airflow direction louvers canbe adjustedmanually byhand.
12.3.Quiet operation (Cooling Mode/Cooling area of Dry Mode)
A. Purpose
To provide quiet coolingoperation compare tonormal operation.
B. Control condition
a. Quiet operation start condition
•When “quiet” button at remote control is pressed.Quiet LED illuminates.
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b. Quiet operation stop condition
1. When one of the following conditions is satisfied, quiet operation stops:
a.Powerful button is pressed.
b.Stop by OFF/ON switch.
c.Timer “off” activates.
d.Quiet button is pressed again.
2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.
3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, except ion only operation.
5. During quiet operation, if timer “on” activates, quiet operation maintains.
6. After off, when on back, quiet operation is not memorised.
C. Control contents
1. Auto fan speed is changed from normal setting to quiet setting of respective fan speed.
This is to reduce sound of Hi, Me, Lo for 3dB.
2. Manual fan speed for quiet operation is -1 step from setting fan speed.
12.3.1.Quiet operation (Heating)
A. Purpose
To provide quiet heating operation compare to normal operation.
B. Control condition
a. Quiet operation start condition
• When “quiet” button at remote control is pressed.
Quiet LED illuminates.
b. Quiet operation stop condition
1. When one of the following conditions is satisfied, quiet operationstops:
a. Powerful button is pressed.
b. Stop by OFF/ON switch.
c. Timer “off” activates.
d. Quiet button is pressed again.
2. When quiet operation is stopped,operation is shifted to normal operation with previous setting.
3. When fan speed is changed, quiet operation is shiftedto quiet operation of the newfan speed.
4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, expected ion only
operation.
5. During quiet operation, if timer “on” activates, quiet operation maintains.
6. After off, when on back, quiet operationis not memorised.
C. Control contents
a. Fan speed auto
1. Indoor FM RPM depends onpipe temp sensor of indoor heat exchanger.
Auto fan speed ischanged from normalsettingto quiet setting of respective fan speed. This is to reduce soundof Hi, Me, Lofor 3dB.
b. Fan speed manual
1. Manual fan speedfor quiet operationis-1 step from setting fan speed.
12.4.Powerful Mode Operation
A. Purpose
To achieve the setting temperature quickly.
B. Control Condition
a. Powerfuloperation start condition
When the “powerful” button at remote control is pressed, Powerful LED illuminates
b. Powerfuloperation stopcondition
1. When oneof the followingconditions is satisfied, quiet operationstops:
a. Powerful buttonis pressed againb. Quiet button is pressedc. Stop by OFF/ON switchd. Timer OFF is pressed again
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2. When Powerful operation is stopped, operation is shifted to normal operation.
C. Control Contents
a. Fan speed
1.Indoor fan speed depends on indoor intake temperature and remote control setting temperature. Fan speed is changed
from normal setting to Powerful setting of respective fan speed.
b. Temperature shifting
1.Internal setting temperature shift depends on indoor pipe temperature. Temperature is decreased (Cooling and Soft Dry
operation) or increased (Heating operation) accordingly.
12.5.ON Timer Control
ON timer can be set using remote control, the unit with timer set will start operate earlier than thesetting time. This is to provide a
comfortable environment when reaching the set ON time.
70 minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to determine the
indoor intake air temperature and outdoor air temperature in order to judge the operation startingtime.
From the judgment, the decided operation will start operate earlier than theset time asshown below.
12.6.OFF Timer Control
OFF timer can be set using remote control, the unit with timer set willstop operate at set time.
12.7.Auto Restart Control
1. When the power supply is cut off duringtheoperationof air conditioner, the compressor will re-operate withinthreeto four
minutes (there are 10 patterns between 2 minutes 58 seconds and 3minutes 52 seconds to be selected randomly) afterpower supply resumes.
2.This typeof control is not applicable during ON/OFF Timer setting.
12.8.Indication Panel
LEDPOWERTIMERIon
ColorGreenOrangeBlue
Light ONOperation ONQuiet Setting ONIon ON
Light OFFOperation OFFQuiet Setting OFFIon OFF
Note:
•If POWER LED is blinking, the possible operations of the unit are Hot Start, during Deice operation, operation mode judgement,
or ON timer sampling.
•If Timer LED is blinking, there isan abnormality operation occurs.
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12.9.Ionizer Operation
Purpose
To provide fresh air effect to users by discharging minus ion to air.
Control Condition
a. Ionizer Only Operation.
1. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at remote controlis pressed.
Fan & ionizer on, ION LED illuminates, but power LED maintain off. (1o2)
However, fan speed can be adjusted later by customer during this operation.
Fan speed
ManualRemote Control set fan speed
AutoRepetition of 8 patterns as shown below.
Airflow direction (HorizontalVane) control:
Follow vane direction control atcooling mode.
Horizontal vane can bechanged by customer during iononly operation.
b. Operation Mode + Ionizer Operation
1. Ionizer Operation Start Condition.
When air conditioner unit is in “ON” condition(Heat, Cool, Dry, Auto mode) and ION operation button at remote control is
pressed. Ionizer on& ION LED illuminates. (3o4)Power LED alsoilluminates.
2. Ionizer Operation StopCondition.
When oneof the following condition is satisfied, ION operation stops.
a. Stopped by ON/OFF switch.b. TimerOFF activates.c. ION feedback signal shows error.
3. Ionizer operation status is not memorised by microcontroller. After OFF, whenoperation is “ON” again, air conditioner
operates without ionizer operation.
12.9.1.Ionizer Error Detection
•There are 3 errors detect by the unit.a.Connector Open Detection
-If the connector is pulled out during ionizer operation, ion LED blinks.
-Once the ionizer connector reconnect to the unit, ion LED stops blinking.
b.Ionizer Control Discharge Error Detection
-When ionizer generator is short circuit due to water or dust adhesion, power supplies to ionizer is stopped for 30 minutes
andresumepower supply after 30 minutes. If this situation happens for 24 times, ion LED blinks.
-Theconnector resets when the ionizer operates normally for 10minutes or the unit switched off.
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- Check and estimate the cause of short circuit, stop the unit operation once to cancel this error.
c. Ionizer Control Power Supply Error Detection
- During ionizer stopped, power is supplied to the ionizer due to indoor PCB error.
- During this error:
• TIMER LED blinks and unit stop operation
• Ion LED blinks
• error code H26 is indicated
- Exchange main PCB to cancel this error.
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13 Protection Control
13.1.Protection Control For All Operations
13.1.1.Time Delay Safety Control
1. The compressor starts the operation, it will not stop its operation for 30 seconds.
2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition.
13.1.2.30 Seconds Forced Operation
1. Once compressor starts the operation, it will not stop its operation for 30 seconds.
2. However, it can be stopped with the remote control or the Auto Switch on the indoor unit.
13.1.3.Total Running Current Control
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operationwill be
decreased.
2. If the running current does not exceed X value for ten seconds, the frequency instructed willbe increased.
3. However, if total outdoor unit running current exceeds Y value, compressor will bestopped immediately for 3 minutes.
ModelTE9HKE-5TE12HKE-5
Operation ModeX (A)Y (A)X (A)Y (A)
Cooling/Soft Dry (A)4.1315.356.1515.35
Cooling/Soft Dry (B)3.6315.355.6515.35
Heating4.7515.356.2415.35
4. The first 30 minutes of cooling operation, (A) will be applied.
13.1.4.IPM (Power transistor) Prevention Control
A. OverheatingPrevention Control
1. When the IPMtemperature rises to 110qC, compressor operation will stopimmediately.
2. Compressor operation restarts after three minutes the temperature decreases to95qC.
B. DC Peak Current Control
1. When electric current to IPM exceeds set value of 30.0 ± 5.0 A, the compressor will stop operate. Then, operation will
restart after 3 minutes.
2. If the set value is exceeded again morethan30seconds after the compressor starts, the operation will restart after two
minutes.
3. If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after one minute. If
this condition repeats continuously for seven times, all indoor and outdoor relays willbe cut off.
13.1.5.Compressor Overheating Prevention Control
Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency
areas below figure.If compressor discharge temperature exceeds 110qC, compressor will stop, occurs 4 times per 20 minutes, timer LED will be
blinking. (“F97” is to be confirmed.)
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13.2.Protection Control For Cooling & Soft Dry Operation
13.2.1.Outdoor Air Temperature Control
The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.
This control will begin 1 minute after the compressor starts.
Compressor frequency will adjust base on Outdoor Air Temperature.
13.2.2.Cooling Overload Control
i. Pipe temperature limitation/restriction
• Detects the Outdoor pipe temperature andcarry out below restriction/limitation (Limit the compressor Operation frequency)
• The compressor stopsif outdoor pipe temperature exceeds 61qC
• If the compressor stops 4times in 20 minutes, Timer LED blinking(F95: outdoor high pressure rise protection)
13.2.3.Dew Prevention Control
1. To prevent dew formationat indoor unit discharge area.
2.This control willbe activated if:
•Outdoor air temperatureand Indoor temperaturejudgment by microcontroller isfulfilled.
•When Cooling or Dry modeis operated more than 30 minutes or more.
3.This control stoppedif:
•Compressor stopped.
•Remote control setting changed (fan speed / temperature).
•Outdoor air temperatureand indoor intake temperature changed.
4.Fan speedwill be adjusted accordingly inthis control.
13.2.4.Freeze Prevention Control
1.When indoor heat exchanger temperature is lower than 0qC continuously for six minutes, compressor will stop operating.
2.Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 7qC.
3.At the same time, indoor fan speed willbehigher than duringits normal operation.
4.If indoor heat exchanger temperatureis higher than 7qC for fiveminutes, the fan speed will return to its normal operation.
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13.3.Protection Control For Heating Operation
13.3.1.Intake Air Temperature Control
Compressor will operate at Max frequency if below condition occur:
1. When the indoor intake air temperature is 30qC or above.
13.3.2.Outdoor Air Temperature Control
The maximum current value is regulated when the outdoor air temperature rises above 16qC in order to avoid compressor
overloading.
13.3.3.Overload Protection Control
The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature asshown in below figures.
13.3.4.Cold Draught Operation
When indoor pipe temperature is low, cold draught operation start where indoor fan speed will bereduced.
13.3.5.Deice Operation
When outdoor pipe temperature and outdoor temperatureislow, deice operation start where indoor fan motor and outdoor fan
motor stop and operation LED blinks.
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14 Servicing Mode
14.1.Auto OFF/ON Button
1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to
operate air conditioner with limited function if remote control is misplaced or malfunction.
2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)
The Test Run operation will be activated if the Auto OFF/ON button is pressedcontinuously for more than5seconds. A “beep”
sound will occur at the fifth seconds, in order to identify the starting of Test Run operation (Forced cooling operation). Within 5
minutes after Forced cooling operation start, the Auto OFF/ON button is pressed for more than 5 seconds. A 2 “beep” sounds
will occur at the fifth seconds, in order to identify the starting of Forced heating operation.
The Auto OFF/ON button may be used together with remote control to set / change the advance settingof air conditioner
operation.
3. REMOTE CONTROL NUMBER SWITCH MODE
The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed continuously for more than
11 seconds (3 “beep” sounds willoccur at 11th seconds to identify the Remote Control Number SwitchMode is instandby
condition) and press any button at remote control to transmit and store the desired transmission code to the EEPROM.
For transmission code selection explanation, please refer to“Select Remote Control Transmission Code”.
4.REMOTE CONTROL RECEIVING SOUND OFF/ON MODEThe Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button ispressed continuously for
more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On
Modeis instandby condition) and press “AC Reset” buttonand then press “Check” button at remote control.
Press “Auto OFF/ON button” totoggle remote control receiving sound.
- Short “beep”: Turn OFFremote control receiving sound.
- Long “beep”: Turn ON remote control receiving sound.
After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is
restarted.
14.2.Select Remote Control Transmission Code
•There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit
will only operatewhen receivedsignal with same transmission code from remote control. This could prevent signal interference
when there are 2 or more indoor units installed nearby together.
•To change remote control transmission code, short or openjumpers at the remote control printed circuit board.
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Remote Control Printed Circuit Board
Jumper A (J-A)Jumper B (J-B)Remote Control No.
ShortOpenA (Default)
OpenOpenB
ShortShortC
OpenShortD
14.3.Remote Control Button
14.3.1.SET BUTTON
• To check current remote control transmission code
- Press for more than 10 seconds.
• To change the air quality sensor sensitivity
- Press and release with pointer.
- Press the Timer Decrement button to select sensitivity:
1. Low Sensitivity
2. Standard (Default)
3. Hi Sensitivity
- Confirm setting by pressing Timer Set button, a “Beep” sound willbeheard. LCD returns tooriginal display after 2 seconds.
- LCD returns to original display if remote control does not operate for 30seconds.
14.3.2.CLOCK BUTTON
• To change the remote control’s time format
- Press for more than 5 seconds.
14.3.3.RESET (RC)
• To clear and restore the remote control setting to factory default
- Press once to clear the memory.
14.3.4.RESET (AC)
• To restore the unit’s settingto factory default
- Press onceto restore the unit’s setting.
14.3.5.TIMER
• To change indoor unit indicator’s LED intensity
-Press continuously for 5 seconds.
14.3.6.TIMER
•To change remote control display from Degree Celsius to Degree Fahrenheit.
-Press continuously for 10 seconds.
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15 Troubleshooting Guide
15.1.Refrigeration Cycle System
In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the standard
values for them are shown in the table on the right.
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15.1.1.Relationship between the condition of the air conditioner and pressure and electric
current
Cooling ModeHeating Mode
Condition of the air
conditioner
Insufficient refrigerant
(gas leakage)
Clogged capillary tube
or Strainer
Short circuit in the
indoor unit
Heat radiation deficiency
of the outdoor unit
Inefficient compression
Low PressureHigh Pressure
Electric current
during operating
Low PressureHigh Pressure
Electric current
during operating
• Carry out the measurements of pressure, electric current, andtemperature fifteenminutes after an operation is started.
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15.2.Breakdown Self Diagnosis Function
15.2.1.Self Diagnosis Function (Three Digits Alphanumeric Code)
• Once abnormality has been detected during operation, the
unit will immediately stop its operation. (Timer LED blinks.)
• Although timer LED goes off when power supply is turned
off, if the unit is operated under a breakdown condition, the
LED will light up again.
• In operation after breakdown repair, error code is not
displayed. The last error code (abnormality) will be saved in
IC memory.
• Timer LED Blinking in Abnormal Operation:
1. Automatically stops the operation.
2. Timer LED on display of the indoor unit blinks.
3. The LED will be off if the unit is turned off or the Error
RESET button on the remote controller is pressed.
• To display memorized error (Protective operation)
status:
1. Turn the unit on.
2. Slide the remote controller cover down to show the
operating buttons.
3. Press the CHECK button on the remote controller for
continuously 5 seconds or more to show “--” on the
display.
4. Press the “TEMP” or button on the remote controller
to show “H00” on the display. Signal is transmitted to the
main unit.
5. Press the “TEMP” or button (When button is
pressed, the display goes back.) repeatedly and slowly
until Beep sound (about 5 seconds intermittently) is heard
from main unit.
6. Then, displayed error code matches totheerror code
saved in unit memory. The power LED on the main unit
also lights up.
Note: When the CHECK button is pressed
continuously for5 seconds again, orwhen no
operation continues for 30seconds, orwhen the
RESET button on remote controller is pressed with a
pointed object, thedisplay is cancelled.
• To clear memorized error (Protective operation) status
after repair:
1.Press the AUTO button in main unit continuously for 5seconds or more and release it. (Test run / Pump downoperation: Beep sound).
2.Press the CHECK button on remote controller for about 1second to transmit signal to main unit. A beep sound isheard from main unit and the data is cleared..
1.Press the ON/OFF button after selecting Cooling orHeating operation. (Receiving Beep sound is heard andthe TIMER LED blinks.)
2.The unit can temporarily beused untilrepaired.
Error CodeOperationTemporary items
H23Cooling
H27, H28Cooling, Heating
Emergency Operation
with limited power
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15.3.Error Codes Table
Diagnosis
display
H11Indoor / outdoor abnormal
H14Indoor intake air temperature sensor
H15Outdoor compressor temperature
H16Outdoor Current Transformer open
H19Indoor fan motor merchanism lock——• Indoor PCB
H23Indoor heat exchanger temperature
H26Ionizer abnormality——•Indoor PCB
H27Outdoor air temperature sensor
H28Outdoor heat exchanger temperature
H33Indoor/Outdoor wrong connection——•Indoor/Outdoor supply voltage
H97Outdoor Fan Motor lock abnormality——•Outdoor PCB
H98Indoor high pressure protection——•Air filter dirty
H99Indoor heat exchanger anti-freezing
F11Cooling / Heating cycle changeover
F91Refrigeration cycle abnormal2 times occurance
F93Outdoor compressor abnormal
F95Cool high pressure protection4 times occurance
F96IPM (power transistor) overheating
F97Outdoor compressor overheating
F98Total running current protection3 times occurance
F99Outdoor Direct Current (DC) peak
Abnormality / Protection control
communication
abnormality
sensor abnormality
circuit
sensor abnormality
abnormality
sensor abnormality
protection
abnormality
revolution
protection
protection
detection
Abnormality
Judgement
> 1 min after starting
operation
——• Intake air temperature sensor
Continue for 5 sec.—• Compressor temperature sensor
——• Outdoor PCB
Continue for 5 sec.O
Continue for 5 sec.O•Outdoor temperature sensor
Continue for 5 sec.O•Outdoor heat exchanger
——•Insufficient refrigerant
4 times occurancewithin 30 minutes
within 20 minutes
4 times occurancewithin 20 minutes
within 20 minutes
——•Excess refrigerant
4 times occurancewithin 10 minutes
within 20 minutes
7 times occurancecontinuously
Emergency
operation
Indoor fan operation
only
(Cooling only)
—•4-way valve
—•No refrigerant
—•Outdoor compressor
—•Outdoor refrigerant circuit
—•Insufficient refrigerant
—•Excess refrigerant
—•Outdoor PCB
Primary location to verify
• Internal / external cable connections
• Indoor / Outdoor PCB
(detective or disconnected)
(detective or disconnected)
• IPM (Power transistor) module
•Fan motor
•Heat exchangertemperature sensor (defective or disconnected)
•Ionizer
(defective or disconnected)
temperature sensor (defective or disconnected)
•Outdoor Fan Motor
•Air circulation short circuit
•Air filter dirty
•V-coil
(3-way valve is closed)
•Improper heat radiation
•IPM (Power transistor)
•Compressor
•Improper heat radiation
•IPM (Power transistor)
•Compressor
Note:“O” - Frequency measured and fan speed fixed.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard
following by pressing the “RESET” button at remote controller.Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error
Codes Table) by usingremote controller or Auto Switch at indoor unit. However, theremotecontroller signal receiving sound is
changed from one“beep” tofour “beep” sounds.
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16 Disassembly and Assembly Instructions
High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding
with repair work. Failure to heed this caution may result in electric shocks.
16.1.Disassembly of Indoor Unit
16.1.1.Removal of the Front Panel and Front Grille.