Philips CS-E15DB4EW User Manual
Order No. MAC0502032C8
Air Conditioner
CS-E15DB4EW CU-E15DBE
CS-E18DB4EW CU-E18DBE
CS-E21DB4ES CU-E21DBE
CONTENTS
Page Page
1 Features 2
2 Functions
2.1. Remote Control
2.2. Indoor Unit
2.3. Outdoor Unit
3 Product Specifications
3.1. CS-E15DB4EW CU-E15DBE
3.2. CS-E18DB4EW CU-E18DBE
3.3. CS-E21DB4ES CU-E21DBE
4 Dimensions
4.1. Indoor Unit & Remote Control
10
12
12
3
3
4
5
6
6
8
4.2. Outdoor Unit 13
5 Refrigeration Cycle Diagram
6 Block Diagram
7 Wiring Diagram
8 Operation Details
8.1. Basic Operation
8.2. Protection Control Features
9 Operating Instructions
10 Installation And Servicing Air Conditioner Using R410A
10.1. Outline
10.2. Tools For Installing/Servicing Refrigerant Piping
© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
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17
28
34
42
42
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
10.3. Refrigerant Piping Work 47
10.4. Installation, Transferring, Servicing
11 Installation Instructions
11.1. Safety Precautions
11.2. Indoor Unit
11.3. Outdoor Unit
12 Servicing Information
12.1. Troubleshooting
12.2. Breakdown Self Diagnosis Function
12.3. Remote Control
12.4. Auto OFF/ON Button
12.5. Disassembly of Parts
13 Technical Data
13.1. Operation Characteristics
13.2. Sensible Capacity Chart
14 Exploded View (Indoor Unit)
1 Features
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-E15DB4EW CS-E18DB4EW CS-E21DB4ES 79
49
53
53
55
62
66
66
68
70
71
72
75
75
78
79
14.2. CZ-BT20E (Front Grille Complete)
15 Replacemen t Parts List (Indoor Unit)
15.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES
15.2. CZ-BT20E (Front Grille Complete)
16 Exploded View (Outdoor Unit)
16.1. CU-E15DBE CU-E18DBE CU-E21DBE
17 Replacemen t Parts List (Outdoor Unit)
17.1. CU-E15DBE CU-E18DBE CU-E21DBE
18 Electronic Circuit Diagram
18.1. Indoor Unit
18.2. Outdoor Unit
18.3. Remote Control
18.4. Print PatternIndoor Unit Printed Circuit Board
18.5. Print PatternOutdoor Unit Printed Circuit Board View
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
81
82
82
83
84
84
85
85
86
86
90
95
96
97
2
2 Functions
2.1. Remote Control
CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
OFF / ON I
MODE
Operation OFF / ON
Operation Mode Selection
•
•
•
•
AUTO
HEAT
COOL
DRY
Automatic Operation
Heating Operation
Cooling Operation
Soft Dry Operation
AUTO
HEAT
COOL
DRY
OFF
OFF
TIMERONTIMER
OFF/ON
MODE
POWERFUL
QUIET
TIMER
ON
123
OFF
CHECK
TEMP
CLOCK RESET
INVENTER
FAN SPEED
AIR SWING
CANCEL
CANCEL
FAN
SPEED
AUTO
MANUAL
SET
TEMP
TIMER-ON
TIMER-OFF
Room Temperature Setting
• Increase or decrease set temperature.
(16°C to 30°C)
Timer Setting
• 24-hour, OFF / ON Real Timer Setting.
POWERFUL
QUIET
AIR SWING
FAN SPEED
Powerful Mode Operation
Quiet Mode Operation
Airflow Direction Control
•
AUTO
Vertical Automatic Airflow
Direction Control.
MANUAL
•
Vertical Manual Airflow
Direction Control.
Indoor Fan Speed Selection
• Low
•
•
•
•
•
AUTO
MediumMedium
Medium+
High
Automatic Fan Speed
SET
CANCEL
CLOCK
CHECK
RESET
Time / Timer Setting
• Hours and minutes setting.
Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
Clock Setting
• Current time setting.
Check Point
• Breakdown self diagnosis function.
Reset Point
• Clear memory data.
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
2.2. Indoor Unit
Automatic Operation Switch
• To run automatic operation, force cooling or
heating operation, or change remote control
signal type.
Operation Indication Lamps (LED)
•
POWER
•
TIMER
•
QUIET
•
POWERFUL
•
AIR SWING
(Green)........Lights up in operation,
blinks in Automatic
Operation Mode judging,
deice, On Timer sampling
and Hot Start operation.
(Orange)......Lights up in Timer Setting.
Blinks in Self Diagnosis
Control.
(Orange)......Lights up in Quiet Mode
Operation.
(Orange) ... Lights up when Powerful
Mode is selected.
(Orange).... Lights up in Auto Air
Swing.
Four Operation Modes
• Automatic, Heating, Cooling and Soft Dry
Operation.
Quiet Mode
• To provide quiet operation.
24-Hour Real Time Timer Control
Automatic Restart Control
• Operation is restarted after power failure at
previous setting mode.
Microcomputer-controlled Room
Temperature Control
Breakdown Self Diagnosis Function
Low Pressure Control
(Gas Leakeage Detection)
Indoor Power Relay Control
Anti-Dew Formation Control
Anti Freezing Control
Automatic and 5 Manual Indoor
Fan Speeds
Airflow Direction Control
• Vertical discharged air can be swung
automatically or manually by remote control.
• Horizontal discharged air can be adjusted by
hand.
Powerful Mode
• For quick cooling or heating.
Anti-Cold Draft Control
Hot Start
Intake Air Temperature Control
High Pressure Control
Deodorizing Control
Deice Operation
4
2.3. Outdoor Unit
CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
Time Delay Safety Control
30 seconds Forced Operation
Overload Protection Control
Total Running Current Control
Compressor Overheating
Prevention Control
IPM (Power Transistor)
Overheating Protection Control
Low Operation Frequency
Protection Control
Mininum Operation Frequency
Protection Control
Outdoor Air Temperature
Control
Standby Control
Deice Operation
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
3 Product Specifications
3.1. CS-E15DB4EW CU-E15DBE
Unit CS-E15DB4EW CU-E15DBE
Cooling Capacity kW
kcal/h
BTU/h
Heating Capacity kW
kcal/h
BTU/h
Moisture Removal l/h
Pint/h
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Airflow Method OUTLET
INTAKE
4.10 (0.90 - 4.80)
3,530 (770 - 4,130)
14,000 (3,070 - 16,400)
5.10 (0.90 - 6.20)
4,390 (770 - 5,330)
17,400 (3,070 - 21,100)
2.3
(4.9)
Single
230 - 240
50
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 7.5 (260) —
Heating; 9.0 (320)
Me m3/min (cfm) Cooling; 9.0 (320) —
Heating; 10.1 (360)
Hi m3/min (cfm) Cooling; 10.5 (370) Cooling; 46.8 (1,650)
Heating; 10.8 (380) Heating; 48.5 (1,710)
dB (A) Cooling; High 34, Low 26 Cooling; 45
Heating; High 35, Low 28 Heating; 47
Noise Level
Power level dB Cooling; High 47 Cooling; High 58
Heating; High 48 Heating; High 60
Electrical Data Input Power W Cooling; 1,300 (255 - 1,710)
Heating; 1,770 (260 - 2,180)
Running Current A Cooling; 6.0 - 5.9
Heating; 8.0 - 7.9
Piping Connection Port
(Flare piping)
EER W/W Cooling; 3.15 (3.53 - 2.81)
BTU/hW Cooling; 10.8 (12.0 - 9.6)
COP W/W Heating; 2.88 (3.46 - 2.84)
BTU/hW Heating; 9.8 (11.8 - 9.7)
Starting Current A 8.0
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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
Unit CS-E15DB4EW CU-E15DBE
Pipe Size
(Flare piping)
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)
Net Weight lb (kg) 40 (18) 106 (48)
Compressor Type — Involute scroll
Air Circulation Type Backward Fan Propeller Fan
Heat Exchanger Description Evaporator Condenser
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
Inner diameter mm 30 —
Length m 0.193 —
Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875)
Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)
Motor Type — Brushless (4-pole)
Rated Output W — 900
Material ABS + GF 10% P.P
Motor Type DC Brushless Motor (8-poles) Transistor (8-poles)
Rate Output W 40 40
Fan Speed Lo (Cool/Heat) rpm 400 / 480 —
Me (Cool/Heat) rpm 480 / 540 —
Hi (Cool/Heat) rpm 560 / 600 640 / 660
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
FPI 18 18
Size (W × H × L) mm 1,330
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
—— —
2/10 1/28
× 210 × 25.4 871.7 × 711.2 × 22
1,270
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
—
•
Specifications are subjected to change without notice for further improvement.
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
3.2. CS-E18DB4EW CU-E18DBE
Unit CS-E18DB4EW CU-E18DBE
Cooling Capacity kW
kcal/h
BTU/h
Heating Capacity kW
kcal/h
BTU/h
Moisture Removal l/h
Pint/h
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Airflow Method OUTLET
INTAKE
4.80 (0.90 - 5.70)
4,130 (770 - 4,900)
16,400 (3,070 - 19,400)
5.60 (0.90 - 7.10)
4,820 (770 - 6,110)
19,100 (3,070 - 24,200)
2.6
(5.5)
Single
230 - 240
50
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 8.0 (280) —
Heating; 9.1 (320)
Me m3/min (cfm) Cooling; 9.5 (340) —
Heating; 10.4 (370)
Hi m3/min (cfm) Cooling; 11.0 (390) 40.0 (1,410)
Heating; 11.5 (405)
dB (A) Cooling; High 36, Low 28 Cooling; 47
Heating; High 37, Low 29 Heating; 48
Noise Level
Power level dB Cooling; High 49 Cooling; High 60
Heating; High 50 Heating; High 61
Electrical Data Input Power W Cooling; 1,530 (255 - 1,930)
Heating; 1,900 (260 - 2,450)
Running Current A Cooling; 7.0 - 6.9
Heating; 8.5 - 8.3
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
EER W/W Cooling; 3.14 (3.53 - 2.95)
BTU/hW Cooling; 10.7 (12.0 - 10.1)
COP W/W Heating; 2.95 (3.46 - 2.90)
BTU/hW Heating; 10.1 (11.8 - 9.9)
Starting Current A 8.5
inch
inch
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
Unit CS-E18DB4EW CU-E18DBE
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)
Net Weight lb (kg) 40 (18) 106 (48)
Compressor Type — Involute scroll
Air Circulation Type Backward Fan Propeller Fan
Heat Exchanger Description Evaporator Condenser
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
Inner diameter mm 30 —
Length m 0.193 —
—— —
Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875)
Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)
Motor Type — Brushless (4-pole)
Rated Output W — 900
Material ABS + GF 10% P.P
Motor Type DC Brushless Motor (8-poles) Transistor (8-poles)
Rate Output W 40 40
Fan Speed Lo (Cool/Heat) rpm 430 / 490 —
Me (Cool/Heat) rpm 510 / 560 —
Hi (Cool/Heat) rpm 590 / 640 660 / 660
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/10 2/34
FPI 18 16
Size (W × H × L) mm 1,330
× 210 × 25.4 849.3
1,270
—
× 714 × 36.4
878
•
Specifications are subjected to change without notice for further improvement.
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
3.3. CS-E21DB4ES CU-E21DBE
Unit CS-E21DB4ES CU-E21DBE
Cooling Capacity kW
kcal/h
BTU/h
Heating Capacity kW
kcal/h
BTU/h
Moisture Removal l/h
Pint/h
Power Source (Phase, Voltage, Cycle) ø
V
Hz
Airflow Method OUTLET
INTAKE
5.90 (0.90 - 6.30)
5,070 (770 - 5,420)
20,100 (3,070 - 21,500)
7.00 (0.90 - 8.00)
6,020 (770 - 6,880)
23,900 (3,070 - 27,300)
3.3
(7.0)
Single
230 - 240
50
SIDE VIEW TOP VIEW
Air Volume Lo m3/min (cfm) Cooling; 9.3 (330) —
Heating; 10.6 (370)
Me m3/min (cfm) Cooling; 11.0 (390) —
Heating; 12.3 (430)
Hi m3/min (cfm) Cooling; 12.8 (450) Cooling; 42.8 (1,510)
Heating; 14.0 (495) Heating; 41.5 (1,460)
dB (A) Cooling; High 41, Low 33 Cooling; 49
Heating; High 42, Low 34 Heating; 49
Noise Level
Power level dB Cooling; High 54 Cooling; High 62
Heating; High 55 Heating; High 62
Electrical Data Input Power W Cooling; 2,050 (255 - 2,200)
Heating; 2,450 (260 - 2,820)
Running Current A Cooling; 9.2 - 9.0
Heating; 10.9 - 10.6
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
EER W/W Cooling; 2.88 (3.53 - 2.86)
BTU/hW Cooling; 9.8 (12.0 - 9.8)
COP W/W Heating; 2.86 (3.46 - 2.84)
BTU/hW Heating; 9.8 (11.8 - 9.7)
Starting Current A 10.9
inch
inch
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
Unit CS-E21DB4ES CU-E21DBE
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)
Net Weight lb (kg) 40 (18) 108 (49)
Compressor Type — Involute scroll
Air Circulation Type Backward Fan Propeller Fan
Heat Exchanger Description Evaporator Condenser
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
Inner diameter mm 30 —
Length m 0.193 —
—— —
Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875)
Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)
Motor Type — Brushless (4-pole)
Rated Output W — 900
Material ABS + GF 10% P.P
Motor Type DC Brushless Motor (8-poles) Transistor (8-poles)
Rate Output W 40 40
Fan Speed Lo (Cool/Heat) rpm 510 / 580 —
Me (Cool/Heat) rpm 600 / 670 —
Hi (Cool/Heat) rpm 700 / 770 700 / 680
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/10 2/34
FPI 18 18
Size (W × H × L) mm 1,330
× 210 × 25.4 839.5
1,270
—
× 714 × 36.4
868
•
Specifications are subjected to change without notice for further improvement.
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
4 Dimensions
4.1. Indoor Unit & Remote Control
4.1.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES
12
4.2. Outdoor Unit
4.2.1. CU-E15DBE CU-E18DBE CU-E21DBE
CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
5 Refrigeration Cycle Diagram
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6 Block Diagram
CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
7 Wiring Diagram
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
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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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
8.1.2. Cooling Operation
8.1.2.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Tempe rature < -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 Tempe rature < -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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES 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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES 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 600 560 560 495 480 425 400 370 310 200
E18D 680 640 590 563 510 488 430 410 350 200
E21D 800 750 700 660 600 560 510 480 410 200
[Heating]
Remote Control — — O O O O O — — —
Tab (rpm) PSHi SSHi SHi Me+ Me Me- Lo Lo- SLo SSLo
E15D 650 610 600 545 540 495 480 440 300 200
E18D 740 690 640 618 560 553 490 490 320 200
E21D 870 820 770 745 670 655 580 570 370 200
B. Indoor Fan Control
i. Indoor fan control operation outline
1. Cooling / Dry
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2. Heating
CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
ii. Auto Fan Speed
1. Cooling
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CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
2. Heating
Note:
a. UP:
• If move from Lo, the fan speed will be shifted to Maximum 1520 rpm.
• If move from Maximum, the fan speed no change.
• In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm.
b. DOWN:
• The fan speed will be decreased one step every 10 sec. until Minimum 1270 rpm.
c. Current Output Fixed:
• Maintain at present fan speed.
d. Instantaneous Maximum:
• Fan speed will be increased to maximum auto fan speed.
e. Temperature in ( ) is for Powerful Mode operation.
C. Fan Motor Control
1. Motor specification
High voltage PWM Motor
2. Feedback Control
a. Number-of-rotations feedback
Immediately after the fan started, rpm is checked and duty is added, and feedback control is performed. For high voltage
PWM motor, it is done once every 0.5 second.
b. Offset duty T max/min limit
High voltage PWM motor has maximum offset duty.
(Refer Indoor fan motor control basic rotation speed)
3. Abnormal Detection Control
Conditions:
a. Out of rhythm signal input
b. If feedback number of rotations exceeded #2550 r/min or when less than #50 r/min.
Control: Fans stop
Return: Restart after 5 seconds
* It will not detect the out of rhythm condition within 5s for phase control motor (PWM motor is when duty=0) after start.
A fan stops when condition (1) and (2) happen within 25.0 seconds after fan starting, and if this happens for continuously
7 times, it will not retry.
→ FM lock processing
4. Restart Prohibition Control
Restart is prohibited within 5s for phase control motor (PWM motor is when duty=0) after fan stop (except re-ON the power
supply).
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D. Deodorizing Control
i. Control condition
Control at cooling/dry operation and auto fan speed.
No Deodorizing Control is performed during ON timer standby operation and during Anti-freezing control prevention.
ii. Operation
The odor status is arranged as below and it is shifted as follow.
* When COMP is ON 1→2→3
(Shift to 4 when COMP is OFF)
* When COMP is OFF 4→5→6→7→6
(Shift to 1 when COMP is ON)
* Start from 4 if the Thermostat is OFF during the start operation.
Odor Status 1 2 3 4 5 6 7 6.7.6... 1
Status Shift
according to COMP
Status Shift
according
to time (s) Dry zone ON
Fan Speed
Cooling
zone
Cooling
zone
Dry zone SLo
40 50 — 30 90 20 90 20.90.20...
OFF SSLo
ON OFF ON
Auto Fan Speed
SSLo OFF SSLo OFF SSLo.OFF...
←→
7
8.1.7. Outdoor Fan Motor Operation
Outdoor fan motor is operated with 15 fan speed. It starts when compressor starts operation and it stops 30 seconds after
compressor stops operation for speed no.8.
No. RPM during Fan Speed (rpm)
E21D E18D E15D
15 75 73 71
14 75 73 71
13 70 68 66
12 68 66 64
11 64 62 60
10 62 60 60
9 58 58 58
8 50 50 50
7 45 45 45
6 40 40 40
5 35 35 35
4 30 30 30
3 25 25 25
2 20 20 20
1 15 15 15
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8.1.8. Airflow Direction
1. There are one types of airflow, vertical airflow (directed by horizontal vane).
2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature
and intake air temperature) and manual (angles of direction can be adjusted using remote control).
8.1.8.1. Vertical Airflow
Operation Mode Airflow Direction Vane Angle (°)
1 2 3 4 5
Heating Auto with Heat Exchanger A Downward fix 70
Temperature B Downward fix 70
C Upward fix 20
D Upward fix 20
Manual 20 - - - 70
Cooling, Soft Dry and Ion Auto 20 ~ 70
Manual 20 - - - 70
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 the vane depends on the indoor heat exchanger temperature as Figure 1
below. When the air conditioner is stopped using remote control, the vane will shift to close position.
2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions
of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position.
8.1.9. Quiet operation (Cooling Mode/Cooling area of Dry Mode)
A. Purpose
To provide quiet cooling 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 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.
5. During quiet operation, if timer “on” activates, quiet operation maintains.
6. After off, when on back, quiet operation is not memorised.
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C. Control contents
1. 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. Fan speed for quiet operation is -1 step from setting fan speed.
8.1.9.1. 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 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 fan only mode.
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
a. Fan Speed manual
1. 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. Fan speed for quiet operation is -1 step from setting fan speed.
3. Fan Speed Auto
Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.
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8.1.10. Powerful Mode Operation
When the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly.
(a) Cooling Operation
(b) Soft Dry Operation
(c) Heating Operation
8.1.11. 24-Hour Real Time Timer Control
ON Timer
ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide
a comfortable environment when reaching the set ON time.
Outdoor fan-ON instructions are transmitted to outdoor unit 60 minutes before setting time, then sampling the outdoor / indoor
temperature with indoor fan at Lo- for 30 seconds. After detecting the indoor/outdoor temperature, the unit determines the
operation starting time according to the load. However, when outdoor unit is operating, the preparation starting time will be set
to minimum.
OFF Timer
When the OFF timer is set by using the remote control, the unit stop operate according to the desired setting.
Notes:
1. By pressing ON/OFF operation button, the ON Timer/OFF Timer setting will not be cancelled.
2. To cancel the previous timer setting, press CANCEL button.
3. To activate the previous timer setting, press SET button.
4. If main power supply is switched off, the Timer setting will be cancelled.
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8.1.12. Auto Restart Control
1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four
minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power
supply resumes.
2. This type of control is not applicable during ON/OFF Timer setting.
8.1.13. Indication Panel
LED POWER TIMER QUIET POWERFUL AIR SWING
Color Green Orange Orange Orange Orange
Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Auto Air Swing ON
Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Auto Air Swing OFF
Note:
• If POWE R LED is blinking, the possible operations of the unit are Hot Start, during Deice operation, operation mode
judgment, or delay ON timer sampling.
• If Timer LED is blinking, there is an abnormality operation occurs.
8.1.14. Drain Pump Control Operation
• To drain out the condensed watar trapped in the drain pan in order to prevent the condensed water from overflowing from the
drain pan and leaking.
• Drain Pump starts to operate 10 sec. after compressor and Indoor fan ON.
• Drain Pump stop to operate 90 sec. after compressor OFF.
Drain Pump Error
Drain Pump Error occurs when:
- Within 20 minutes, the float switch is ON twice.
- Float switch is ON continuously for 2 minutes 30 seconds.
When error occurs, the timer indicator blinks and the unit stops its operation.
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8.2. Protection Control Features
8.2.1. Protection Control For All Operations
8.2.1.1. Time Delay Safety Control
1. The compressor will not start for three minutes after stop of operation.
2. This control is not applicable if the power supply is cut off for 20 seconds and on again or after 4-way valve deices condition.
8.2.1.2. 30 Seconds Forced Operation
1. Once the compressor starts operation, it will not stop its operation for 30 seconds.
2. However, it can be stopped using remote control or Auto Switch at indoor unit.
8.2.1.3. Total Running Current Control
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be
decreased.
2. If the running current does not exceed X value for five seconds, the frequency instructed will be increased.
3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 2 minutes.
Model E15D E18D E21D
Operation Mode X(A) Y(A) X(A) Y(A) X(A) Y (A)
Cooling/Soft Dry (A) 7.20 17 8.74 17 11.02 17
Cooling/Soft Dry (B) & (C) 6.30 17 7.70 17 9.59 17
Heating 8.60 17 10.71 17 11.53 17
4. The first 30 minutes of cooling operation, (A) will be applied.
8.2.1.4. IPM (Power transistor) Prevention Control
A. Overheating Prevention Control
1. When the IPM temperature rises to 100°C, compressor operation will stop immediately.
2. Compressor operation restarts after three minutes the temperature decreases to 95°C.
B. DC Peak Current Control
1. When electric current to IPM exceeds set value of 22.33 A, the compressor will stop operate. Then, operation will restart
after three minutes.
2. If the set value is exceeded again more than 30seconds after the compressor starts, the operation will restart after 1 minute.
3. If the set value is 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 will be cut off.
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8.2.1.5. Compressor Overheating Prevention Control
Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency
are as below figure.
8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection)
a. Control start conditions
Control will perform when (1) - (3) condition continues operation for 5 minute and (4) is fulfill.
1. During cooling and dry operation: Frequency more than normal Fcmax 78 Hz (E15D), 86 Hz (E18D), 102 Hz (E21D).
During heating operation: Frequency more than normal Fh 71 Hz (E15D), 86 Hz (E18D), 92 Hz (E21D).
2. Outdoor total current I cooling: Ib
Heating: Ib
Ic = Ia = 1.65 A
Ib = 0.65 A
3. It is not during deice operation.
4. During cooling and dry operation: indoor suction-indoor piping temperature is below 4°C.
During of heating operation: Indoor piping temperature-indoor suction is under 5°C.
Control contents:
• compressor stops (restart after 3 minutes)
• if happen 2 times within (20 minutes), perform the following operation
1) Unit stop operation
2) Timer LED blink and “F91” indicated
I Ic
I Ia
8.2.1.7. Low Frequency Protection Control 1
When the compressor operate at frequency lower than 25 Hz continued for 20 minutes, the operation frequency will be increased
to 24 Hz for two minutes.
8.2.1.8. Low Frequency Protection Control 2
When all the below conditions occur, minimum value (Freq. MIN) for the frequency instructed to compressor will change to 30 Hz
for cooling mode operation and 20 Hz for heating mode operation.
Temperature, T, for: Cooling/Soft Dry Heating
Indoor intake air (°C) T 14 or T 30 T 14 or T 28
Outdoor air (°C) T 13 or T 38 T 4orT 24
Indoor heat exchanger (°C) T 30 T 0
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8.2.2. Protection Control For Cooling & Soft Dry Operation
8.2.2.1. 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 one minute after the compressor starts.
8.2.2.2. Cooling Overload Control
i. Pipe temperature limitation/restriction
• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)
• The compressor stop if outdoor pipe temperature exceeds 63°C
• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95: outdoor high pressure rise protection)
ii. Electrical part temperature rise protection control
1. Purpose
To prevent electronic components temperature rise during cooling overload.
2. Judgement Conditions
a) Outdoor temperature
b) Outdoor total current above 5 A.
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