Order No. MAC0801007C8
Air Conditioner
Indoor Unit Outdoor Unit
CS-E18HKEA CU-E18HKEA
CS-E21HKEA CU-E21HKEA
TABLE OF CONTENTS
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. CS-E18HKEA CU-E18HKEA--------------------------5
2.2. CS-E21HKEA CU-E21HKEA--------------------------7
3Features------------------------------------------------------------- 9
4 Location of Controls and Components ------------------10
4.1. Indoor Unit--------------------------------------------------10
4.2. Outdoor Unit -----------------------------------------------10
4.3. Remote Control -------------------------------------------10
5Dimensions--------------------------------------------------------11
5.1. Indoor Unit & Remote Control-------------------------11
5.2. Outdoor Unit -----------------------------------------------12
6 Refrigeration Cycle Diagram --------------------------------13
7 Block Diagram----------------------------------------------------14
8 Wiring Connection Diagram ---------------------------------15
8.1. Indoor Unit--------------------------------------------------15
8.2. Outdoor Unit -----------------------------------------------16
PAGE PAGE
9 Electronic Circuit Diagram----------------------------------- 17
9.1. Indoor Unit-------------------------------------------------17
9.2. Outdoor Unit-----------------------------------------------18
10 Printed Circuit Board ------------------------------------------19
10.1. Indoor Unit-------------------------------------------------19
10.2. Outdoor Unit----------------------------------------------- 21
11 Installation Instruction ---------------------------------------- 22
11.1. Select The Best Location ------------------------------22
11.2. Indoor/Outdoor Unit Installation Diagram ---------- 22
11.3. Indoor Unit -------------------------------------------------23
11.4. Outdoor Unit-----------------------------------------------26
12 Operation and Control ----------------------------------------28
12.1. Basic Function--------------------------------------------28
12.2. Airflow Direction------------------------------------------30
12.3. Quiet operation (Cooling Mode/Cooling area
of Soft Dry Mode) ---------------------------------------- 31
12.4. Powerful Mode Operation------------------------------ 32
© 2008 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
12.5. Timer Control----------------------------------------------33
12.6. Auto Restart Control-------------------------------------33
12.7. Indication Panel-------------------------------------------33
12.8. Ion Operation----------------------------------------------34
13 Protection Control----------------------------------------------35
13.1. Protection Control For All Operations---------------35
13.2. Protection Control For Cooling & Soft Dry
Operation---------------------------------------------------36
13.3. Protection Control For Heating Operation --------- 38
14 Servicing Mode --------------------------------------------------39
14.1. Auto OFF/ON Button------------------------------------ 39
14.2. Select Remote Control Transmission Code------- 39
14.3. Remote Control Button ---------------------------------40
15 Troubleshoo ting Guide----------------------------------------41
15.1. Refrigeration Cycle System ---------------------------41
15.2. Relationship Between The Condition Of The
Air Conditioner And Pressure And Electric
Current------------------------------------------------------42
15.3. Breakdown Self Diagnosis Function ----------------43
15.4. Error Codes Table----------------------------------------44
16 Disassembly and Assembly Instructions---------------45
16.1. Indoor Electronic Controllers and Control
Board--------------------------------------------------------45
16.2. Indoor Cross Flow Fan and Fan Motor-------------47
17 Technical Data----------------------------------------------------49
17.1. Operation Characteristics------------------------------49
17.2. Sensible Capacity Chart--------------------------------57
18 Exploded View and Replacement Parts List-----------58
18.1. CS-E18HKEA CS-E21HKEA-------------------------58
18.2. CU-E18HKEA CU-E21HKEA ------------------------61
2
1 Safety Precautions
• 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 of the power plug and
main circuit for the model installed.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of the instruction 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 PROHIBITED from doing.
• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
1. Engage dealer or specialist for installation and servicing. If installation of 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 (E LCB) 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-conditioner unit at veranda of high rise building, child may
climb up to outdoor unit and cross over the handrail and causing accident.
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 of the extension cord, and do not share the single outlet with other electrical
appliances. Otherwise, it will cause fire or electrical 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 0.8 mm. Never use copper pipes thinner than 0.8 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 the installation servicing confirm there is no leakage of 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 the refrigerant contacts with fire.
3
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 50°F - 70°F (30°C - 40°C) higher. Please
use a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
7. Power supply connection to the 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.
1. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection
to the socket.
2. Power supply connection to a circuit breaker for the permanent component. 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 refrigeration 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.
4
2 Specifications
2.1. CS-E18HKEA CU-E18HKEA
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Performance Test Condition EUROVENT
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
Refrigeration Control Device — Expansion Valve
Refrigeration Oil
Refrigerant (R410A) g (oz) — 1.18k (41.7)
Dimension
Net Weight kg (lbs) 11 (24) 49 (108)
Pipe Diameter
Standard Length m (ft) 5.0 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 20 (65.6)
Height Difference m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Drain Hose
Compressor
Me
Hi
SHi
Height mm (inch) 275 (10-27/32) 750 (29-17/32)
Width mm (inch) 998 (39-5/16) 875 (34-15/32)
Depth mm (inch) 230 (9-1/16) 345 (13-19/32)
Gas mm (inch) 12.7 (1/2)
Liquid mm (inch) 6.35 (1/4)
Inner Diameter mm 12 —
Length mm 650 —
Type — Hermetic Motor
Motor Type — Brushless (4-pole)
Rated Output W — 900
kW 5.30 (0.90 ~ 6.00)
BTU/h 18100 (3070 ~ 20500)
kCal/h 4560 (770 ~ 5160)
W/W 3.21 (4.19 ~ 2.93)
kcal/hW 2.76 (3.58 ~ 2.52)
dB (A) Hi: 44, Lo:37, Q-Lo: 34 Hi: 47
Power level dB Hi: 57, Lo:50, Q-Lo: 47 Hi: 60
kW 6.60 (0.90 ~ 8.00)
BTU/h 22500 (3070 ~ 27300)
kCal/h 5680 (770 ~ 6880)
W/W 3.69 (3.67 ~ 3.02)
kcal/hW 3.17 (3.14 ~ 2.60)
dB (A) Hi: 44, Lo:37, Q-Lo: 34 Hi: 47
Power level dB Hi: 57, Lo:50, Q-Lo: 47 Hi: 60
l/h 2.9
pt/h 6.1
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
cm
3
Cooling; 12.11 (428)
Heating; 13.20 (466)
Cooling; 12.90 (457)
Heating; 13.92 (492)
Cooling; 14.08 (497)
Heating; 15.29 (540)
Cooling; 15.20 (540) Cooling; 40.0 (1410)
Heating; 16.70 (590) Heating; 40.0 (1410)
Cooling; 16.03 (566)
Heating; 17.29 (616)
— RB68A or Freol Alpha68M (400)
—
—
—
—
5
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Type Cross-Flow Fan Propeller Fan
Material ASHT-18 PP
Motor Type Transistor (8-pole) Transistor (8-pole)
Input Power W 68 62.1
Fan
Heat Exchanger
Air Filter
Output Power W 30 40
Q-Lo (Cool/Heat) rpm 1080 / 1170 —
Lo (Cool/Heat) rpm 1170 / 1240 —
Fan Speed
Fin Material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row x Stage x FPI 2 x 15 x 19 2 x 34 x 18
Size (W x H x L) mm 610 x 315 x 25.4
Material P.P.Honeycomb —
Type One-Touch —
Me (Cool/Heat) rpm 1310 / 1410 —
Hi (Cool/Heat) rpm 1450 / 1580 660 / 640
SHi (Cool/Heat) rpm 1540 / 1640 —
36.4 x 714 x 803
831
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb)
and outdoor air temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry
Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
Item Unit
øSingle
Power Source (Phase, Voltage, Cycle)
Input Power W
Starting Current A 8.3
Running Current A
Maximum Current A 11.9
Power Factor %
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Thermostat Electronic Control
Protection Device Electronic Control
Number of core
Length m 1.9
V 230
Hz 50
Cooling; 1.65k (215 ~ 2.05k)
Heating; 1.79k (245 ~ 2.65k)
Cooling; 7.5
Heating; 8.1
Cooling; 96
Heating; 96
3 (1.5mm
2
Note
• Specifications are subject to change without notice for further improvement.
)
6
2.2. CS-E21HKEA CU-E21HKEA
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Performance Test Condition EUROVENT
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
Hi
Refrigeration Control Device — Expansion Valve
Refrigeration Oil
Refrigerant (R410A) g (oz) — 1.29k (45.5)
Height mm (inch) 275 (10-27/32) 750 (29-17/32)
Dimension
Width mm (inch) 998 (39-5/16) 875 (34-15/32)
Depth mm (inch) 230 (9-1/16) 345 (13-19/32)
Net Weight kg (lbs) 11 (24) 51 (112)
Pipe Diameter
Gas mm (inch) 12.7 (1/2)
Liquid mm (inch) 6.35 (1/4)
Standard Length m (ft) 5.0 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 20 (65.6)
Height Difference m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Drain Hose
Inner Diameter mm 12 —
Length mm 650 —
Type — Hermetic Motor
Compressor
Motor Type — Brushless (4-pole)
Rated Output W — 900
kW 6.30 (0.90 ~ 7.10)
BTU/h 21500 (3070 ~ 24200)
kCal/h 5420 (770 ~ 6110)
W/W 2.85 (4.19 ~ 2.80)
kcal/hW 2.45 (3.58 ~ 2.41)
dB (A) Hi: 45, Lo:37, Q-Lo: 34 Hi: 48
Power level dB Hi: 58, Lo:50, Q-Lo: 47 Hi: 61
kW 7.20 (0.90 ~ 8.50)
BTU/h 24600 (3070 ~ 29000)
kCal/h 6190 (770 ~ 7310)
W/W 3.43 (3.67 ~ 3.09)
kcal/hW 2.95 (3.14 ~ 2.66)
dB (A) Hi: 45, Lo:37, Q-Lo: 34 Hi: 49
Power level dB Hi: 58, Lo:50, Q-Lo: 47 Hi: 62
l/h 3.5
pt/h 7.4
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
3
m
/min (ft3/min)
cm
3
Cooling; 12.60 (444)
Heating; 13.53 (478)
Cooling; 13.21 (467)
Heating; 14.24 (503)
Cooling; 14.73 (520)
Heating; 15.75 (556)
—
—
—
Cooling; 16.2 (570) Cooling; 42.8 (1510)
Heating; 17.3 (610) Heating; 41.5 (1460)
Cooling; 17.21 (608)
Heating; 17.95 (634)
—
— RB68A or Freol Alpha68M (400)
7
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Type Cross-Flow Fan Propeller Fan
Material ASHT-18 PP
Motor Type Transistor (8-pole) Transistor (8-pole)
Input Power W 68 74.8
Fan
Heat Exchanger
Air Filter
Output Power W 30 40
Q-Lo (Cool/Heat) rpm 1100 / 1190 —
Lo (Cool/Heat) rpm 1170 / 1270 —
Fan Speed
Fin Material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row x Stage x FPI 2 x 15 x 19 2 x 34 x 18
Size (W x H x L) mm 610 x 315 x 25.4
Material P.P.Honeycomb —
Type One-Touch —
Me (Cool/Heat) rpm 1345/ 1440 —
Hi (Cool/Heat) rpm 1520 / 1610 700 / 680
SHi (Cool/Heat) rpm 1630 / 1690 —
36.4 x 714 x 823
851
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb)
and outdoor air temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry
Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
Item Unit
øSingle
Power Source (Phase, Voltage, Cycle)
Input Power W
Starting Current A 9.7
Running Current A
Maximum Current A 12.6
Power Factor %
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord
Thermostat Electronic Control
Protection Device Electronic Control
Number of core
Length m 1.9
V 230
Hz 50
Cooling; 2.21k (215 ~ 2.54k)
Heating; 2.10k (245 ~ 2.75k)
Cooling; 9.9
Heating; 9.3
Cooling; 97
Heating; 98
3 (1.5mm
2
Note
• Specifications are subject to change without notice for further improvement.
)
8
3 Features
• Inverter Technology
- Wider output power range
- Energy saving
- Quick Cooling
- Quick Heating
- More precise temperature control
• Supersonic Air Purifying System with Super Alleru-Buster
- Inactive various harmful airborne elements including allergens, viruses and bacteria. Generated superso nic waves enhance
the ability to collect dust and dirt in the air.
• Ion Mode
- Provides fresh air effect by producing negative ion.
• Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
• Long Installation Piping
- Long piping up to 20 meter
• Easy to use remote control
• Quality Improvement
- 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
9
4 Location of Controls and Components
4.1. Indoor Unit
4.2. Outdoor Unit
4.3. Remote Control
10
5 Dimensions
5.1. Indoor Unit & Remote Control
11
5.2. Outdoor Unit
12
6 Refrigeration Cycle Diagram
Piping size Rated
Model Gas Liquid
E18HKEA,
E21HKEA
1/2” 1/4” 5 10 15 3 20 20
Length
(m)
Common
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
* If piping length is over common length, additional refrigerant should be added as shown in the table.
13
Additional
Refrigerant
(g/m)
(m)
7 Block Diagram
14
8 Wiring Connection Diagram
8.1. Indoor Unit
15
8.2. Outdoor Unit
16
9 Electronic Circuit Diagram
9.1. Indoor Unit
17
9.2. Outdoor Unit
18
10 Printed Circuit Board
10.1. Indoor Unit
10.1.1. Main Printed Circuit Board
19
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