Panasonic CS-E15DKEW User manual

1 Features 2
2 Functions 3
2.1. Remote Control 3
2.2. Indoor Unit 4
2.3. Outdoor Unit 5
3 Product Specifications 6
3.1. CS-E15DKEW CU-E15DKE 6
3.2. CS-E18DKEW CU-E18DKE 8
3.3. CS-E21DKES CU-E21DKE 10
4 Dimensions 12
4.1. Indoor Unit & Remote Control 12
4.2. Outdoor Unit 14
© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-E15DKEW CU-E15DKE
CS-E18DKEW CU-E18DKE
CS-E21DKES CU-E21DKE
5 Refrigeration Cycle Diagram 15
6 Block Diagram 16
7 Wiring Diagram 17
8 Operation Details 18
8.1. Basic Function 18
8.2. Protection Control Features 35
9 Operating Instructions 47
9.1. CS-E15DKEW 47
9.2. CS-E18DKEW CS-E21DKES 53
10 Installation And Servicing Air Conditioner Using R410A 59
10.1. Outline 59
10.2. Tools For Installing/Servicing Refrigerant Piping 60
Air Conditioner
CONTENTS
Page Page
Order No. MAC0501012C2

3.1. CS-E15DKEW CU-E15DKE
3 Product Specifications
Unit CS-E15DKEW CU-E15DKE
Cooling Capacity kW
kcal/h
BTU/h
4.40 (0.90 - 5.00)
3,780 (770 - 4,300)
15,000 (3,070 - 17,100)
Heating Capacity kW
kcal/h
BTU/h
5.50 (0.90 - 7.10)
4,730 (770 - 6,110)
18,800 (3,070 - 24,200)
Moisture Removal l/h
Pint/h
2.4
(5.1)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 7.4 (260) —
Heating; 8.8 (310)
Me m3/min (cfm) Cooling; 9.2 (320) —
Heating; 10.3 (360)
Hi m3/min (cfm) Cooling; 11.0 (390) Cooling; 48.5 (1,710)
Heating; 11.8 (420) Heating; 46.8 (1,650)
dB (A) Cooling; High 43, Low 32 Cooling; 46
Heating; High 43, Low 35 Heating; 46
Noise Level
Power level dB Cooling; High 54 Cooling; High 59
Heating; High 54 Heating; High 59
Electrical Data Input Power W Cooling; 1,370 (215 - 1,600)
Heating; 1,570 (245 - 2,250)
Running Current ACooling; 6.3
Heating; 7.1
EER W/W Cooling; 3.21 (4.19 - 3.13)
BTU/hW Cooling; 10.9 (14.3 - 10.7)
COP W/W Heating; 3.50 (3.67 - 3.16)
BTU/hW Heating; 12.0 (12.5 - 10.8)
Starting Current A7.3
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Unit CS-E15DKEW CU-E15DKE
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 12 —
Length m0.65 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 11 - 1/32 (280) 29 - 17/32 (750)
Width inch (mm) 31 - 15/32 (799) 34 - 7/16 (875)
Depth inch (mm) 7 - 7/32 (183) 13 - 19/32 (345)
Net Weight lb (kg) 20 (9) 106 (48)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W — 700
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W30 40
Fan Speed Lo (Cool/Heat) rpm 980 / 1,160 —
Me (Cool/Heat) rpm 1,220 / 1,360 —
Hi (Cool/Heat) rpm 1,460 / 1,560 660 / 640
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/15 1/28
FPI 21 18
Size (W × H × L) mm 610 × 315 × 25.4 871.7 × 711.2 × 22
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (c.c) —RB68A (360)
Refrigerant (R410A) kg (oz) —1.06 (37.4)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
Length mm — —
Capillary Tube Flow Rate l/min — —
Inner Diameter mm — —
Air Filter Material
Style
P.P.
Honeycomb
—
• Specifications are subjected to change without notice for further improvement.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

3.2. CS-E18DKEW CU-E18DKE
Unit CS-E18DKEW CU-E18DKE
Cooling Capacity kW
kcal/h
BTU/h
5.30 (0.90 - 6.00)
4,560 (770 - 5,160)
18,100 (3,070 - 20,500)
Heating Capacity kW
kcal/h
BTU/h
6.60 (0.90 - 8.00)
5,680 (770 - 6,880)
22,500 (3,070 - 27,300)
Moisture Removal l/h
Pint/h
2.9
(6.1)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 12.3 (430) —
Heating; 13.0 (460)
Me m3/min (cfm) Cooling; 13.9 (490) —
Heating; 14.6 (520)
Hi m3/min (cfm) Cooling; 15.2 (540) 40.0 (1,410)
Heating; 16.7 (590)
dB (A) Cooling; High 44, Low 37 Cooling; 47
Heating; High 44, Low 37 Heating; 47
Noise Level
Power level dB Cooling; High 57 Cooling; High 60
Heating; High 57 Heating; High 60
Electrical Data Input Power W Cooling; 1,650 (215 - 2,050)
Heating; 1,790 (245 - 2,650)
Running Current ACooling; 7.5
Heating; 8.1
EER W/W Cooling; 3.21 (4.19 - 2.93)
BTU/hW Cooling; 11.0 (14.3 - 10.0)
COP W/W Heating; 3.69 (3.67 - 3.02)
BTU/hW Heating; 12.6 (12.5 - 10.3)
Starting Current A8.3
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Unit CS-E18DKEW CU-E18DKE
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 12 —
Length m0.65 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)
Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875)
Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)
Net Weight lb (kg) 24 (11) 108 (49)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W — 900
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W30 40
Fan Speed Lo (Cool/Heat) rpm 1,170 / 1,240 —
Me (Cool/Heat) rpm 1,330 / 1,395 —
Hi (Cool/Heat) rpm 1,450 / 1,580 660 / 640
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/15 2/34
FPI 21 16
Size (W × H × L) mm 810 × 315 × 25.4 849.3
878
× 714 × 36.4
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (c.c) —RB68A (360)
Refrigerant (R410A) kg (oz) —1.18 (41.7)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
Length mm — —
Capillary Tube Flow Rate l/min — —
Inner Diameter mm — —
Air Filter Material
Style
P.P.
Honeycomb
—
• Specifications are subjected to change without notice for further improvement.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

3.3. CS-E21DKES CU-E21DKE
Unit CS-E21DKES CU-E21DKE
Cooling Capacity kW
kcal/h
BTU/h
6.30 (0.90 - 7.10)
5,420 (770 - 6,110)
21,500 (3,070 - 24,200)
Heating Capacity kW
kcal/h
BTU/h
7.20 (0.90 - 8.50)
6,190 (770 - 7,310)
24,600 (3,070 - 29,000)
Moisture Removal l/h
Pint/h
3.5
(7.4)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 12.5 (440) —
Heating; 13.5 (480)
Me m3/min (cfm) Cooling; 14.4 (510) —
Heating; 14.9 (530)
Hi m3/min (cfm) Cooling; 16.2 (570) Cooling; 42.8 (1,510)
Heating; 17.3 (610) Heating; 41.5 (1,460)
dB (A) Cooling; High 45, Low 37 Cooling; 48
Heating; High 45, Low 37 Heating; 49
Noise Level
Power level dB Cooling; High 58 Cooling; High 61
Heating; High 58 Heating; High 62
Electrical Data Input Power W Cooling; 2,210 (215 - 2,540)
Heating; 2,100 (245 - 2,750)
Running Current ACooling; 9.9
Heating; 9.3
EER W/W Cooling; 2.85 (4.19 - 2.80)
BTU/hW Cooling; 9.7 (14.3 - 9.5)
COP W/W Heating; 3.43 (3.67 - 3.09)
BTU/hW Heating; 11.7 (12.5 - 10.5)
Starting Current A9.7
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Unit CS-E21DKES CU-E21DKE
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 12 —
Length m0.65 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)
Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875)
Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)
Net Weight lb (kg) 24 (11) 112 (51)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W — 900
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W30 40
Fan Speed Lo (Cool/Heat) rpm 1,170 / 1,270 —
Me (Cool/Heat) rpm 1,355 / 1,400 —
Hi (Cool/Heat) rpm 1,520 / 1,610 700 / 680
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/15 2/34
FPI 19 18
Size (W × H × L) mm 810 × 315 × 25.4 839.5
868
× 714 × 36.4
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (c.c) —RB68A (360)
Refrigerant (R410A) kg (oz) —1.29 (45.5)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
Length mm — —
Capillary Tube Flow Rate l/min — —
Inner Diameter mm — —
Air Filter Material
Style
P.P.
Honeycomb
—
• Specifications are subjected to change without notice for further improvement.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

4 Dimensions
4.1. Indoor Unit & Remote Control
4.1.1. CS-E15DKEW
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

4.1.2. CS-E18DKEW CS-E21DKES
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

4.2. Outdoor Unit
4.2.1. CU-E15DKE CU-E18DKE CU-E21DKE
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

5 Refrigeration Cycle Diagram
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

6 Block Diagram
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

7 Wiring Diagram
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Attached accessories
Applicable piping kit
CZ-4F5, 7, 10BP (E15DK)
Select the best location
INDOOR UNIT
• 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 7.5 m, additional refrigerant
should be added as shown in the table.
Indoor/Outdoor Unit Installation Diagram
• This illustration is for explanation purposes only.
The indoor unit will actually face a different way.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Attached accessories
Applicable piping kit
CZ-4F5, 7, 10BP (E18DK, E21DK)
Select the best location
INDOOR UNIT
• 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 10 m, additional refrigerant
should be added as shown in the table.
Indoor/Outdoor Unit Installation Diagram
• This illustration is for explanation purposes only.
The indoor unit will actually face a different way.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

1. Rated Frequency Operation
13 Servicing Information
Caution:
• Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use
a high temperature soldering 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).
13.1. Troubleshooting
During troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the
specification and technical data. Below are the methods used to obtain rated compressor operating specification.
(a) Cooling
(i) Press the Auto button continuously for 5 seconds or less than 8 seconds, the air conditioner starts operation at Cooling rated frequency.
(“beep” will be heard at the 5th second.)
(ii) Short the service terminal (CN-S) of the outdoor printed circuit board. The operation of air conditioner is Cooling rated frequency.
(b) Heating
Press the Auto button continuously for 8 seconds or less than 11 seconds, the air conditioner starts operation at Heating rated
frequency. (“beep” “beep” will be heard at the 8th second.)
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

2. Troubleshooting Air Conditioner
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 to the right.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

1. Relationship between the condition of the air conditioner and pressure and electric current
Cooling Mode Heating Mode
Condition of the air
conditoner Low Pressure High Pressure Electric current
during operation
Low Pressure High Pressure Electric current
during operation
Insufficient refrigerant
(gas leakage)
Clogged capillary tube
or Strainer
Short circuit in the
indoor unit
Heat radiation
deficiency of the
outdoor unit
Inefficient compression
• Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
13.2. Breakdown Self Diagnosis Function
Once abnormality detected during operation, the unit will immediately stop its operation (Timer LED is blinking) and maximum of
three error codes (abnormality) will be saved in memory. The abnormality of the operation can be identified through the below
breakdown diagnosis method:
• Press “CHECK” button at remote control continuously for more than five seconds to turn on the diagnosis mode, “H11” will be
displayed at remote control.
• By pressing the TMER “ ” button once, next error code will be displayed; press “V” button once, previous error code will be
displayed.
• If error code displayed matches the error code saved in unit memory (abnormality detected), “beep, beep, beep....” sounds will
be heard for 4 seconds and Power LED will light on. Otherwise, one “beep” sound is heard.
If “CHECK” button is press again or without any operation for 30 seconds, the diagnosis mode will turn off.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

Error Codes Table
Diagnosis
display
Abnormality / Protection control Abnormality
Judgement
Emergency
operation
Primary location to verify
H11 Indoor / outdoor abnormal
communication
> 1 min after starting
operation
Indoor fan operation
only
• Internal / external cable connections
• Indoor / Outdoor PCB
H12 Connection capability rank abnormal — — —
H14 Indoor intake air temperature sensor
abnormality
Continue for 5 sec. —• Intake air temperature sensor
(defective or disconnected)
H15 Outdoor compressor temperature sensor
abnormality
Continue for 5 sec. —• Compressor temperature sensor
(defective or disconnected)
H16 Outdoor Current Transformer open
circuit
— — • Outdoor PCB
• IPM (Power transistor) module
H19 Indoor fan motor merchanism lock — — • Indoor PCB
• Fan motor
H23 Indoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. O
(Cooling only)
• Heat exchanger temperature sensor
(defective or disconnected)
H26 Ion abnormality — — • Indoor PCB
• Ionizer
H27 Outdoor air temperature sensor
abnormality
Continue for 5 sec. O• Outdoor temperature sensor
(defective or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. O• Outdoor heat exchanger
temperature sensor (defective or
disconnected)
H30 Discharge temperature sensor
abnormality
Continue for 5 sec. —• Discharge temperature sensor
H33 Indoor/Outdoor wrong connection — — • Indoor/Outdoor supply voltage
H38 Indoor/Outdoor mismatch (brand code) — — —
H97 Outdoor Fan Motor lock abnormality — — • Outdoor PCB
• Outdoor Fan Motor
H98 Indoor high pressure protection — — • Air filter dirty
• Air circulation short circuit
H99 Indoor heat exchanger anti-freezing
protection
— — • Insufficient refrigerant
• Air filter dirty
F11 Cooling / Heating cycle changeover
abnormality
4 times occurance
within 30 minutes
—• 4-way valve
• V-coil
F90 PFC control 4 times occurance
within 10 minutes
—• Voltage at PFC
F91 Refrigeration cycle abnormality 7 times occurance
continuously
—• No refrigerant
(3-way valve is closed)
F93 Outdoor compressor abnormal revolution 4 times occurance
within 20 minutes
—• Outdoor compressor
F95 Cool high pressure protection 4 times occurance
within 20 minutes
—• Outdoor refrigerant circuit
F96 IPM (power transistor) overheating
protection
— — • Excess refrigerant
• Improper heat radiation
• IPM (Power transistor)
F97 Outdoor compressor overheating
protection
4 times occurance
within 20 minutes
—• Insufficient refrigerant
• Compressor
F98 Total running current protection 3 times occurance
within 20 minutes
—• Excess refrigerant
• Improper heat radiation
F99 Outdoor Direct Current (DC) peak
detection
7 times occurance
continuously
—• Outdoor PCB
• 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 Control.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error
Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is
changed from one “beep” to four “beep” sounds.
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE

• Remote Control Reset
When the batteries are inserted for the first time, or the
batteries are replaced, all the indications will blink and the
remote control might not work.
If this happen, remove the cover of the remote control and
push the reset point once to clear the memory data.
• Changing the wireless remote control transmission
code
When there are more than one indoor units installed in the
same room, it is possible to set different remote control
receiving signal by modifying the jumpers inside Remote
Control.
13.3. Remote Control
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CS-E15DKEW CU-E15DKE / CS-E18DKEW CU-E18DKE / CS-E21DKES CU-E21DKE