Panasonic CS-E15DTEW 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-E15DTEW CU-E15DBE 6
3.2. CS-E18DTEW CU-E18DBE 8
3.3. CS-E21DTES CU-E21DBE 10
4 Dimensions 12
4.1. Indoor Unit & Remote Control 12
4.2. Outdoor Unit 13
© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-E15DTEW CU-E15DBE
CS-E18DTEW CU-E18DBE
CS-E21DTES CU-E21DBE
5 Refrigeration Cycle Diagram 14
6 Block Diagram 15
7 Wiring Diagram 16
8 Operation Details 17
8.1. Basic Operation 17
8.2. Protection Control Features 27
9 Operating Instructions 33
10 Installation And Servicing Air Conditioner Using R410A 41
10.1. Outline 41
10.2. Tools For Installing/Servicing Refrigerant Piping 42
10.3. Refrigerant Piping Work 46
10.4. Installation, Transferring, Servicing 48
Air Conditioner
CONTENTS
Page Page
Order No. MAC0502042C8

11 Installation Instructions 52
11.1. Safety Precautions 52
11.2. Indoor Unit 55
11.3. Outdoor Unit 58
12 Servicing Information 63
12.1. Troubleshooting 63
12.2. Breakdown Self Diagnosis Function 65
12.3. Remote Control 67
12.4. Auto OFF/ON Button 68
12.5. Disassembly of Parts 69
13 Technical Data 72
13.1. Operation Characteristics 72
13.2. Sensible Capacity Chart 75
14 Exploded View (Indoor Unit) 76
• Product
− Four modes of operation selection
− Powerful Mode operation
− 24-Hour Real Time Timer Control
− Quiet Mode Operation
− Discharged air can be swung automatically or manually
by remote control
− Air filter with function to reduce dust and smoke
14.1. CS-E15DTEW CS-E18DTEW CS-E21DTES 76
15 Replacement Parts List (Indoor Unit) 77
15.1. CS-E15DTEW CS-E18DTEW CS-E21DTES 77
16 Exploded View (Outdoor Unit) 78
16.1. CU-E15DBE CU-E18DBE CU-E21DBE 78
17 Replacement Parts List (Outdoor Unit) 79
17.1. CU-E15DBE CU-E18DBE CU-E21DBE 79
18 Electronic Circuit Diagram 80
18.1. Indoor Unit 80
18.2. Outdoor Unit 83
18.3. Remote Control 88
18.4. Print PatternIndoor Unit Printed Circuit Board 89
18.5. Print PatternOutdoor Unit Printed Circuit Board View 90
• Serviceability Improvement
− Removable and washable Intake Grille
− Breakdown Self Diagnosis function
• Environmental Protection
− Non-ozone-depletion substances refrigerant (R410A)
• Quality Improvement
− Gas leakage detection
− Deice operation
− Auto restart control
1 Features
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

2 Functions
2.1. Remote Control
Operation OFF / ON Room Temperature Setting
TEMP
Operation Mode Selection
•AUTO Automatic Operation
•HEAT Heating Operation
•COOL Cooling Operation
•DRY Soft Dry Operation
Time / Timer Setting
• Hours and minutes setting.
Clock Setting
• Current time setting.
Quiet Mode Operation
QUIET
Airflow Direction Control
• 24-hour, OFF / ON Real Timer Setting.
Timer Setting
Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
CLOCK
Powerful Mode Operation
POWERFUL
• Increase or decrease set temperature.
(16°C to 30°C)
•AUTO Vertical Automatic Airflow
Direction Control.
• MANUAL Vertical Manual Airflow
Direction Control.
FAN SPEED
Check Point
Reset Point
RESET
CHECK
AIR SWING
• Breakdown self diagnosis function.
• Clear memory data.
CANCEL
OFF
TIMER
ON
TIMER
FAN
SPEED
AUTO
HEAT
DRY
COOL
OFF
MODE
TIMER
ON
123
OFF
CLOCK RESET
SET
CANCEL
TEMP
POWERFUL
FAN SPEED
AIR SWING
OFF/ON
QUIET
AUTO
MANUAL
CHECK
INVENTER
OFF / ON I
MODE
Indoor Fan Speed Selection
•Low
•Medium-
•Medium
•Medium+
•High
•AUTO Automatic Fan Speed
TIMER-ON
TIMER-OFF
SET
CANCEL
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

2.2. Indoor Unit
Automatic and 5 Manual Indoor
Fan Speeds
Powerful Mode
•For quick cooling or heating.
24-Hour Real Time Timer Control
Microcomputer-controlled Room
Temperature Control
Breakdown Self Diagnosis Function
Indoor Power Relay Control
Anti-Dew Formation Control
Anti Freezing Control
Anti-Cold Draft Control
Hot Start
Intake Air Temperature Control
Quiet Mode
•To provide quiet operation.
Automatic Restart Control
•Operation is restarted after power failure at
previous setting mode.
Low Pressure Control
(Gas Leakeage Detection)
Deodorizing Control
Four Operation Modes
•Automatic, Heating, Cooling and Soft Dry
Operation.
Operation Indication Lamps (LED)
• POWER (Green) ........ Lights up in operation,
blinks in Automatic
Operation Mode judging,
deice, On Timer sampling
and Hot Start operation.
• TIMER (Orange) ...... Lights up in Timer Setting.
Blinks in Self Diagnosis
Control.
• QUIET (Orange) ...... Lights up in Quiet Mode
Operation.
• POWERFUL (Orange) ... Lights up when Powerful
Mode is selected.
• AIR SWING (Orange) .... Lights up in Auto Air
Swing.
Airflow Direction Control
•Vertical discharged air can be swung
automatically or manually by remote control.
•Horizontal discharged air can be adjusted by
hand.
Automatic Operation Switch
•To run automatic operation, force cooling or
heating operation, or change remote control
signal type.
High Pressure Control
Deice Operation
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2.3. Outdoor Unit
30 seconds Forced Operation
Time Delay Safety Control
Overload Protection Control
Deice Operation
Standby Control
Compressor Overheating
Prevention Control
IPM (Power Transistor)
Overheating Protection Control
Total Running Current Control
Mininum Operation Frequency
Protection Control
Low Operation Frequency
Protection Control
Outdoor Air Temperature
Control
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3.1. CS-E15DTEW CU-E15DBE
3 Product Specifications
Unit CS-E15DTEW CU-E15DBE
Cooling Capacity kW
kcal/h
BTU/h
4.15 (0.90 - 4.55)
3,570 (770 - 3,910)
14,200 (3,070 - 15,500)
Heating Capacity kW
kcal/h
BTU/h
5.17 (0.90 - 6.30)
4,450 (770 - 5,420)
17,600 (3,070 - 21,500)
Moisture Removal l/h
Pint/h
2.4
(5.1)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230 - 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 9.1 (320) —
Heating; 8.3 (290)
Me m3/min (cfm) Cooling; 10.6 (370) —
Heating; 10.4 (360)
Hi m3/min (cfm) Cooling; 12.0 (420) Cooling; 48.5 (1,710)
Heating; 12.2 (430) Heating; 48.5 (1,710)
dB (A) Cooling; High 45, Low 37 Cooling; 46
Heating; High 45, Low 33 Heating; 47
Noise Level
Power level dB Cooling; High 58 Cooling; High 59
Heating; High 58 Heating; High 60
Electrical Data Input Power WCooling; 1,290 (255 - 1,550)
Heating; 1,550 (260 - 2,050)
Running Current ACooling; 6.0 - 5.9
Heating; 7.1 - 7.0
EER W/W Cooling; 3.22 (3.53 - 2.94)
BTU/hW Cooling; 11.0 (12.0 - 10.0)
COP W/W Heating; 3.34 (3.46 - 3.07)
BTU/hW Heating; 11.4 (11.8 - 10.5)
Starting Current A7.1
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-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

Unit CS-E15DTEW CU-E15DBE
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 14 —
Length m0.66 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 21 - 9/32 (540) 29 - 17/32 (750)
Width inch (mm) 40 - 1/2 (1,028) 34 - 7/16 (875)
Depth inch (mm) 7 - 7/8 (200) 13 - 19/32 (345)
Net Weight lb (kg) 37 (17) 106 (48)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W—900
Air Circulation Type Sirocco Propeller Fan
Material ABS + GF 10% P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W51 40
Fan Speed Lo (Cool/Heat) rpm 730 / 660 —
Me (Cool/Heat) rpm 845 / 830 —
Hi (Cool/Heat) rpm 960 / 1,000 660 / 660
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/12 1/28
FPI 20 18
Size (W × H × L) mm 857 × 252 × 25.4 871.7 × 711.2 × 22
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (cm3) — RB68A (400)
Refrigerant (R410A) kg (oz) —1.23 (43.4)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
• Specifications are subjected to change without notice for further improvement.
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

3.2. CS-E18DTEW CU-E18DBE
Unit CS-E18DTEW CU-E18DBE
Cooling Capacity kW
kcal/h
BTU/h
5.00 (0.90 - 5.40)
4,300 (770 - 4,640)
17,100 (3,070 - 18,400)
Heating Capacity kW
kcal/h
BTU/h
6.10 (0.90 - 7.60)
5,250 (770 - 6,540)
20,800 (3,070 - 25,900)
Moisture Removal l/h
Pint/h
2.8
(5.9)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230 - 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 9.8 (350) —
Heating; 8.6 (300)
Me m3/min (cfm) Cooling; 11.2 (390) —
Heating; 10.7 (380)
Hi m3/min (cfm) Cooling; 12.5 (440) 40.0 (1,410)
Heating; 12.7 (450)
dB (A) Cooling; High 46, Low 39 Cooling; 47
Heating; High 47, Low 35 Heating; 48
Noise Level
Power level dB Cooling; High 59 Cooling; High 60
Heating; High 60 Heating; High 61
Electrical Data Input Power WCooling; 1,660 (255 - 1,890)
Heating; 1,820 (260 - 2,380)
Running Current ACooling; 7.5 - 7.4
Heating; 8.2 - 8.1
EER W/W Cooling; 3.01 (3.53 - 2.86)
BTU/hW Cooling; 10.3 (12.0 - 9.7)
COP W/W Heating; 3.35 (3.46 - 3.19)
BTU/hW Heating; 11.4 (11.8 - 10.9)
Starting Current A8.2
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”
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

Unit CS-E18DTEW CU-E18DBE
Drain
Hose
Inner diameter mm 14 —
Length m0.66 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 21 - 9/32 (540) 29 - 17/32 (750)
Width inch (mm) 40 - 1/2 (1,028) 34 - 7/16 (875)
Depth inch (mm) 7 - 7/8 (200) 13 - 19/32 (345)
Net Weight lb (kg) 40 (18) 106 (48)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W—900
Air Circulation Type Sirocco Propeller Fan
Material ABS + GF 10% P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W51 40
Fan Speed Lo (Cool/Heat) rpm 800 / 700 —
Me (Cool/Heat) rpm 910 / 875 —
Hi (Cool/Heat) rpm 1,020 / 1,050 660 / 660
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/12 2/34
FPI 20 16
Size (W ×H×L) mm 857 ×252 ×25.4 849.3
878
×714 ×36.4
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (cm3)—RB68A (400)
Refrigerant (R410A) kg (oz) —1.06 (37.4)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
• Specifications are subjected to change without notice for further improvement.
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

3.3. CS-E21DTES CU-E21DBE
Unit CS-E21DTES CU-E21DBE
Cooling Capacity kW
kcal/h
BTU/h
5.80 (0.90 - 6.60)
4,990 (770 - 5,680)
19,800 (3,070 - 22,500)
Heating Capacity kW
kcal/h
BTU/h
6.80 (0.90 - 8.10)
5,850 (770 - 6,970)
23,200 (3,070 - 27,600)
Moisture Removal l/h
Pint/h
3.2
(6.8)
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Single
230 - 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 10.0 (350) —
Heating; 8.8 (310)
Me m3/min (cfm) Cooling; 11.6 (410) —
Heating; 11.0 (390)
Hi m3/min (cfm) Cooling; 13.1 (460) Cooling; 42.8 (1,510)
Heating; 13.2 (465) Heating; 41.5 (1,460)
dB (A) Cooling; High 47, Low 41 Cooling; 48
Heating; High 47, Low 37 Heating; 49
Noise Level
Power level dB Cooling; High 60 Cooling; High 61
Heating; High 60 Heating; High 62
Electrical Data Input Power WCooling; 1,930 (255 - 2,240)
Heating; 1,990 (260 - 2,650)
Running Current ACooling; 8.7 - 8.6
Heating; 9.0 - 8.8
EER W/W Cooling; 3.01 (3.53 - 2.95)
BTU/hW Cooling; 10.3 (12.0 - 10.0)
COP W/W Heating; 3.42 (3.46 - 3.06)
BTU/hW Heating; 11.7 (11.8 - 10.4)
Starting Current A9.3
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”
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”
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

Unit CS-E21DTES CU-E21DBE
Drain
Hose
Inner diameter mm 14 —
Length m0.66 —
Power Cord Length
Number of core-wire
—— —
—
Dimensions Height inch (mm) 21 - 9/32 (540) 29 - 17/32 (750)
Width inch (mm) 40 - 1/2 (1,028) 34 - 7/16 (875)
Depth inch (mm) 7 - 7/8 (200) 13 - 19/32 (345)
Net Weight lb (kg) 44 (20) 108 (49)
Compressor Type —Involute scroll
Motor Type —Brushless (4-pole)
Rated Output W—900
Air Circulation Type Sirocco Propeller Fan
Material ABS + GF 10% P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W51 40
Fan Speed Lo (Cool/Heat) rpm 820 / 720 —
Me (Cool/Heat) rpm 945 / 900 —
Hi (Cool/Heat) rpm 1,070 / 1,080 700 / 680
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/12 2/34
FPI 20 18
Size (W ×H×L) mm 857 ×252 ×25.4 839.5
868
×714 ×36.4
Refrigerant Control Device —Expansion Valve
Refrigeration Oil (cm3)—RB68A (400)
Refrigerant (R410A) kg (oz) —1.15 (40.6)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
• Specifications are subjected to change without notice for further improvement.
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

4 Dimensions
4.1. Indoor Unit & Remote Control
4.1.1. CS-E15DTEW CS-E18DTEW CS-E21DTES
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

4.2. Outdoor Unit
4.2.1. CU-E15DBE CU-E18DBE CU-E21DBE
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

5 Refrigeration Cycle Diagram
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6 Block Diagram
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7 Wiring Diagram
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8 Operation Details
8.1. Basic Operation
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjust output power for maximum comfort always.
In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the
temperature of environment and performing temperature shifting.
8.1.1. Temperature Shifting Flow
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.
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8.1.2. Cooling Operation
8.1.2.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5°C.
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF
point.
8.1.3. Soft Dry Operation
8.1.3.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2.0°C.
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF
point.
8.1.4. Heating Operation
8.1.4.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0°C.
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF
point.
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

8.1.5. Automatic Operation
This mode can be set using remote control and the operation is decided by remote control setting temperature, 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.
Values of T1, T2, and T3 depend on remote control setting temperature, as shown in below table. After the adjustment of T1, T2
and T3 values, the operation mode for that particular environment and remote control setting is judged and performed, based on
the above operation mode chart, every 30 minutes.
Remote Control Setting Temperature (°C) T1 T2 T3
16 ~ 18 +10 -3 -5
19 ~ 22 +8 -3 -7
23 ~ 26 +7 -3 -7
27 ~ 30 +6 -3 -8
There is a temperature shifting on T1, T2, and T3 if the operation mode judged is changed from Cooling/Soft Dry to Heating or vice
verse.
Operation Mode change from Temperature shifts (°C)
Cooling/Soft Dry →Heating -2
Heating →Cooling/Soft Dry +2
Example of operation mode chart adjustment:
From the above table, if remote control setting temperature = 25,
T1 = 25 + 7 = 32; T2 = 25 - 3 = 22; T3 = 25 - 7 = 18
The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on
indoor intake air temperature and outdoor air temperature at the time when the judgment is made.
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CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE

8.1.6. Indoor Fan Motor Operation
A. Basic Rotation Speed (rpm)
• Required rotation speed for fan is set to respond to the remote control setting (10 rpm unit)
[Cooling, Dry, Fan]
Remote Control — — O O O O O — — —
Tab (rpm) PSHI SHI Hi Me+ Me Me- Lo Lo- SLo SSLo
E15D 1050 990 960 903 845 788 730 680 420 —
E18D 1110 1050 1020 965 910 855 800 750 490 —
E21D 1180 1120 1070 1008 945 883 820 770 510 —
[Heating]
Remote Control — — O O O O O — — —
Tab (rpm) PSHi SSHi SHi Me+ Me Me- Lo Lo- SLo SSLo
E15D 1090 1020 1000 915 830 745 660 620 370 320
E18D 1150 1080 1050 962 875 788 700 660 400 350
E21D 1210 1140 1080 990 900 810 720 680 420 370
B. Indoor Fan Control
i. Indoor fan control operation outline
1. Cooling / Dry
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