Panasonic CS-E24DKE, CU-E24DKE Service Manual
1 Features 2
2 Functions
3
2.1. Remote Control
3
2.2. Indoor Unit
4
2.3. Outdoor Unit
6
3 Product Specifications
7
3.1. CS-E24DKE CU-E24DKE
7
4 Dimensions
9
4.1. Indoor Unit & Remote Control
9
4.2. Outdoor Unit
10
5 Refrigeration Cycle Diagram
11
6 Block Diagram
12
7 Wiring Diagram
13
8 Operation Details
14
8.1. Basic Function
14
© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-E24DKE CU-E24DKE
8.2. Protection Control Features 31
9 Operating Instructions
41
10 Installation And Servicing Air Conditioner Using R410A
47
10.1. Outline
47
10.2. Tools For Installing/Servicing Refrigerant Piping
48
10.3. Refrigerant Piping Work
52
10.4. Installation, Transferring, Servicing
54
11 Installation Instructions
58
11.1. Safety Precautions
58
11.2. Indoor Unit
61
11.3. Outdoor Unit
65
12 Servicing Information
68
12.1. Distinction Of Lead Free (PbF) Printed Circuit Board
68
12.2. Troubleshooting
68
12.3. Breakdown Self Diagnosis Function
70
Air Conditioner
CONTENTS
Page Page
Order No. MAC0501002C2
12.4. Remote Control 72
12.5. Indoor Electronic Controllers Removal Procedures
73
12.6. Cross Flow Fan and Indoor Fan Motor Removal
Procedures
74
12.7. Outdoor Electronic Controller Removal Procedure
76
13 Technical Data
77
14 Exploded View (Indoor Unit)
79
14.1. CS-E24DKE
79
15 Replacement Parts List (Indoor Unit)
80
15.1. CS-E24DKE
80
•
Product
−
Four modes of operation selection
−
Powerful Mode operation
−
Delay ON Timer and OFF Timer
−
Ionizer Mode Operation
−
Quiet Mode Operation
−
Automatic air swing and manual adjusted by Remote
Control for horizontal and vertical airflow
−
Supersonic Air Purifying System with Super AlleruBuster.
Inactive various harmful airbone elements includin g
allergens, viruses and bacteria. Generated supersonic
waves enhance the ability to collect dust and dirt in the
air.
16 Exploded View (Outdoor Unit) 81
16.1. CU-E24DKE
81
17 Replacement Parts List (Outdoor Unit)
82
17.1. CU-E24DKE
82
18 Electronic Circuit Diagram
83
18.1. Indoor Unit
83
18.2. Outdoor Unit
86
18.3. Remote Control
91
18.4. Print Pattern Indoor Unit Printed Circuit Board
92
18.5. Print Pattern Outdoor Unit Printed Circuit Board
93
•
Serviceability Improvement
−
Removeable and washable Front Panel
−
Breakdown Self Diagnosis function
•
Environmental Protection
−
Non-ozone depletion substances refrigerant (R410A)
•
Quality Improvement
−
Gas leakage detection
−
Deice operation
−
Auto restart control
1 Features
2
CS-E24DKE CU-E24DKE
2 Functions
2.1. Remote Control
Operation OFF / ON
OFF/ON
I
Room Temperature Setting
TEMP
Operation Mode Selection
•
a
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)
• Vertical Automatic Airflow
Direction Control and Manual
Airflow Direction Control (5
stages of adjustment).
•
Horizontal Automatic Airflow
Direction Control and Manual
Airflow Direction Control (5
stages of adjustment).
Indoor Fan Speed Selection
FAN SPEED
• Low
•
Medium-
•
Medium
•
Medium+
•
High
•
AUTO
Automatic Fan Speed
FAN
Check Point
Reset Point
RESET
∧
∨
SET
CANCEL
CHECK
MODE
AIR SWING
• Breakdown self diagnosis function.
• Clear memory data.
Ion Mode Operation
TIMER
OFF
ON
3
CS-E24DKE CU-E24DKE
2.2. Indoor Unit
Automatic Operation Switch
• Press for < 5s to run Automatic Operation.
(Used when the remote control cannot be used.)
• Press continuously for 5s and < 8s to run
Forced Cooling Operation.
• Press continuously for 8s and < 11s to
run Forced Heating Operation.
• Press continuously for 11s and < 16s to
change different remote controlling
setting (4 type of transmission code).
• Press continuously for 16s or < 21s to
switch OFF / ON Remote Control
Receiving Sound or H14 Abnormality
Detection Mode.
Operation Indication Lamps (LED)
Quiet Mode
Four Operation Modes
• Automatic, Heating, Cooling and Soft Dry
Operation.
Delay ON Timer and OFF Timer
Powerful Mode
• For quick cooling or heating.
•
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.
•
(Green) ............ Lights up in Ionizer
Mode Operation.
Blinks in Ionizer
error.
•
SUPER ALLERU-BUSTER ....
Lights up in
(Blue) operation.
Automatic and 5 Manual Indoor
Fan Speeds
Automatic and 5 Manual Vertical
Airflow Directions
Automatic and 5 Manual Horizontal
Airflow Directions
Automatic Restart Control
• Operation is restarted after power failure
at previous setting mode.
Microcomputer-controlled Room
Temperature Control
• To provide quiet operation.
Ionizer Control
• Ionizer control for generate negative ion
in discharge air.
4
CS-E24DKE CU-E24DKE
Anti-Dew Formation Control
Indoor Power Relay Control
Anti Freezing Control
Low Pressure Control
(Gas Leakeage Detection)
Breakdown Self Diagnosis
Function
Anti-Cold Draft Control
High Pressure Control
Hot Start
Intake Air Temperature Control
Deodorizing Control
Deice Operation
5
CS-E24DKE CU-E24DKE
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
6
CS-E24DKE CU-E24DKE
3.1. CS-E24DKE CU-E24DKE
3 Product Specifications
Unit CS-E24DKE CU-E24DKE
Cooling Capacity kW
kcal/h
BTU/h
6.80 (0.90 - 8.10)
5,850 (770 - 6,970)
23,200 (3,070 - 27,600)
Heating Capacity kW
kcal/h
BTU/h
8.60 (0.80 - 9.90)
7,400 (690 - 8,510)
29,300 (2,730 - 33,800)
Moisture Removal l/h
Pint/h
3.9
(8.2)
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; 12.8 (450) —
Heating; 14.0 (490)
Me m3/min (cfm) Cooling; 14.8 (520) —
Heating; 16.0 (570)
Hi m3/min (cfm) Cooling; 16.9 (600) Cooling; 52.0 (1,840)
Heating; 18.3 (660) Heating; 50.5 (1,780)
dB (A) Cooling; High 47, Low 38 Cooling; 52
Heating; High 47, Low 38 Heating; 52
Noise Level
Power level dB Cooling; High 60 Cooling; High 66
Heating; High 60 Heating; High 66
Electrical Data Input Power W Cooling; 2,410 (380 - 2,990)
Heating; 2,710 (350 - 3,250)
Running Current A Cooling; 10.9
Heating; 12.2
EER W/W Cooling; 2.82 (2.37 - 2.71)
BTU/hW Cooling; 9.6 (8.1 - 9.2)
COP W/W Heating; 3.17 (2.29 - 3.05)
BTU/hW Heating; 10.8 (7.8 - 10.4)
Starting Current A 12.2
7
CS-E24DKE CU-E24DKE
Unit CS-E24DKE CU-E24DKE
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 5/8”
L ; Half Union 1/4”
G ; 3-way valve 5/8”
L ; 2-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 5/8”
L (liquid side) ; 1/4”
G (gas side) ; 5/8”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 12 —
Length m 0.65 —
Power Cord Length
Number of core-wire
2.1 m
3 core wires × 1.5 mm
2
—
—
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) 26 (12) 140 (63.5)
Compressor Type — Hermetic Rotary
Motor Type — DC Brushless (4-pole)
Rated Output W — 1,500
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 P.P
Motor Type Transistor (8-poles) Transistor (8-poles)
Rate Output W 30 60
Fan Speed Lo (Cool/Heat) rpm 1,200 / 1,310 —
Me (Cool/Heat) rpm 1,390 / 1,500 —
Hi (Cool/Heat) rpm 1,580 / 1,690 830 / 810
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Blue Coated)
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2/15 2/28
FPI 21 18
Size (W × H × L) mm 810 × 315 × 25.4 833.2
867.8
× 711.2 × 44
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (mL) — DAPHNE FV68S (650)
Refrigerant (R410A) kg (oz) — 1.85 (65.3)
Thermostat Electronic Control —
Protection Device Electronic Control Electronic Control
Length mm — Cooling; 393, Heating; 465
Capillary Tube Flow Rate l/min — Cooling; 16.8, Heating; 21.2
Inner Diameter mm — Cooling; 1.6, Heating; 2.2
Air Filter Material
Style
P.P.
Honeycomb
—
•
Specifications are subjected to change without notice for further improvement.
8
CS-E24DKE CU-E24DKE
4 Dimensions
4.1. Indoor Unit & Remote Control
9
CS-E24DKE CU-E24DKE
4.2. Outdoor Unit
10
CS-E24DKE CU-E24DKE
5 Refrigeration Cycle Diagram
11
CS-E24DKE CU-E24DKE
6 Block Diagram
12
CS-E24DKE CU-E24DKE
7 Wiring Diagram
13
CS-E24DKE CU-E24DKE
8.1. Basic Function
8 Operation Details
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal setting temperature and intake air temperature.
8.1.1. Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes.
These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value
will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
Table (a): Auto Operation Mode Setting
Mode Shift: Temperature Shift (°C)
Cooling/Soft Dry→Heating -2.0
Heating→Cooling/Soft Dry +2.0
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CS-E24DKE CU-E24DKE
Table (b): Outdoor Air Temperature Shifting
Mode: Outdoor Temperature , X (°C): Temperature Shift (°C)
Manual Operation Auto Operation
Cooling/Soft Dry 38 X 1.50 2.00
30 X 38 1.25 1.25
23 X 30 1.25 1.25
X 23 1.75 1.75
Heating 21 X -2.25 -1.50
17 X 21 -1.75 -1.00
13 X 17 -0.75 0.00
9 X 13 0.25 0.25
5 X 9 1.25 1.00
1 X 5 0.75 1.00
-3 X 1 1.50 1.00
X -3 1.50 1.00
Table (c): Powerful Mode Shifting
Mode: Period, X (min): Temperature Shift (°C)
Cooling X 20 -2.0
X 20 0.0
Soft Dry X 20 -1.0
X 20 0.0
Heating X 20 +3.5
X 20 +3.5
Table (d): Fan Speed Shifting
Mode: Fan Speed: Temperature Shift (°C)
Cooling All -0.25
Soft Dry All +0.0
Heating Lo +2.0
Me-, Me, Me+, Auto, Hi +1.5
Table (e): Start-Up Shifting
Mode within 60 Minutes from Start-up: Temperature Shift (°C)
Cooling/Soft Dry -1.0
Heating +2.0
15
CS-E24DKE CU-E24DKE
CompHz = Freq. A × Freq. H + Freq. C
Example Calcula tion:
Model No.: E24DK
Operation Mode: Cooling
When Intake Air Temperature - Internal setting Temperature:
1.5°C
CompHz = Freq. A × Freq. H + Freq. C
= 1.8 × 30 + 13.0
= 67 Hz (Decimal point is ignored)
Cooling & Soft Dry E24DK
Freq. A Freq. C
Low Load (Freq. H 13) 2.0 10.0
High Load (Freq. H > 13) 1.8 13.0
Heating E24DK
Freq. A Freq. C
Low Load (Freq. H 15) 1.5 11.0
High Load (Freq. H > 15) 1.7 8.0
Freq. Range E24DK
Cooling Fc 64
Operation Range 14 ~ 74
Heating Fh 68
Operation Range 14 ~ 100
8.1.2. Compressor Operation Frequency
Intake Air Temperature - Internal Setting Temperature (°C) Freq. H
Zone Cooling Soft Dry Heating Cooling Soft Dry Heating Remark
1 -2.0 -3.0 1.0 1 5 3
2 -1.5 -2.5 0.5 11 10 13
3 -1.0 -2.0 0.0 15 12 17
4 -0.5 -1.5 -0.5 18 14 21
5 0.0 -1.0 -1.0 22 16 26
6 0.5 -0.5 -1.5 25 18 32
7 1.0 0.0 -2.0 28 21 35 Fh
8 1.5 0.5 -2.5 30 24 35 Fc, Fh
9 2.0 1.0 -3.0 30 27 35 Fc, Fh
10 2.5 1.5 -3.5 30 30 35 Fc, Fh
11 Nil Nil -4.0 Nil Nil 35 Fh
12 Nil Nil -4.5 Nil Nil 35 Fh
Operating Frequency Calculation Formula:
Remarks:
When Freq. H is equal to 30 (Cooling), 35 (Heating) or above, the Comp. may run at the freq. higher than Fc or Fh up to max.
freq. operation.
Best Amenity Control
Every 90s (Cooling), 120s (Heating) maintain same zone Freq. H + 1 until Fc, Fh.
8.1.3. Cooling Operation
8.1.3.1. 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 +0.5°C.
16
CS-E24DKE CU-E24DKE
8.1.4. Soft Dry Operation
8.1.4.1. Thermostat control
•
Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2.5°C.
•
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF
point.
8.1.5. Heating Operation
8.1.5.1. Thermostat control
•
Compressor is OFF when Intake Air Temperature - Internal Setting > +1.5°C.
•
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF
point -0.5°C.
8.1.6. 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.
17
CS-E24DKE CU-E24DKE
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 +8 -5
19 ~ 22 +8 +7 -7
23 ~ 26 +7 +6 -7
27 ~ 30 +6 +5 -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 + 6 = 31; 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.
8.1.7. 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) SHI Hi Me+ Me Me- Lo Lo- SLo SSLo
E24DK 1670 1580 1480 1390 1290 1200 930 840 630
[Heating]
Remote Control — O O O O O — — —
Tab (rpm) SSHI SHi Me+ Me Me- Lo Lo- SLo SSLo
E24DK 1690 1690 1590 1500 1400 1310 930 400 300
18
CS-E24DKE CU-E24DKE
B. Indoor Fan Control
i. Indoor fan control operation outline
1. Cooling / Dry
2. Heating
19
CS-E24DKE CU-E24DKE
ii. Auto Fan Speed
1. Cooling
2. Heating
Note:
a. UP:
•
If move from Lo, the fan speed will be shifted to Maximum 1520 rpm (E24DK).
•
If move from Maximum, the fan speed no change.
•
In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm (E24DK ).
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.
20
CS-E24DKE CU-E24DKE
iii. Max Capacity Condition
a) During Cooling operation, if all to the following conditio n is fulfilled, the indoor fan speed is set to Shi.
1. Indoor intake temperature
24°C.
2. Operation frequency 64 Hz (E24DK) & above.
3. Remote Control setting temperature 16°C.
4. Remote Control setting fan speed Hi.
5. Outdoor temperature
30°C.
6. Operation start
within 30 minutes.
* If any of above conditions is not valid, the conditio n is ended.
b) During Heating operation, if all to the following condition is fulfilled, the indoor fan speed is set to SSHi.
1. Indoor intake temperature is 17°C or above and less than 23°C.
2. Operation frequency 68 Hz (E24DK) & above.
3. Remote Control setting temperature 30°C.
4. Remote Control setting fan speed Hi.
5. Outdoor temperature < 4°C.
6. Operation start
2 hours.
* If any of above conditions is not valid, the conditio n is ended.
C. Fan Motor Control
i. Motor specification
High voltage PWM Motor
ii. Feedba ck Control
1. Rotation speed feedback
Immediately after the fan started, rpm is checked and duty is added, and feedback control is performed.
iii. Abnormal Detection
1. Condition **Step out signal input
Feedback rotation speed is more than 2550 rpm or below 50 rpm.
However, 10s after fan start, rotation abnormality is not detected.
2. Control * Fan stop
3. Return * Restart after 5s
However, in case the fan is stopped by the above conditions within 25s after fan has started, and happened
continuously for 7 times, restart will not be performed.
→
Indoor fan motor lock abnormal (H19)
iv. Restart Prohibition Control
Prohibit to restart within 5s after fan stop.
(except when power is ON)
21
CS-E24DKE CU-E24DKE
D. Deodorizing Control
i. Control conditio n
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→4
←→
5
(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 4 5 4.5.4... 1
Status Shift
according to COMP
ON OFF ON
Status Shift
according
Cooling
zone
40 50 — 20 90 20 90 .......
to time (s) Dry zone ON
Fan Speed
Cooling
zone
OFF
SLo
Auto Fan Speed
SLo
OFF
SLo OFF .......
Dry zone OFF SLo OFF
8.1.8. 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.
22
CS-E24DKE CU-E24DKE
Basic Rotation Speed
8.1.9. Airflow Direction
1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).
2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature
and intake air temperature) and manual (angles of direction can be adjusted using remote control).
Vertical Airflow
Operation Mode Airflow Direction Vane Angle (°)
1 2 3 4 5
Heating Auto with Heat Exchanger A 19
Temperature B 49
C 8
D 8
Manual 8 17 33 49 60
Cooling, Soft Dry and Fan, Ion Auto 8~38
Manual 8 17 25 33 38
Mode Judgment in Auto Auto 8
Manual 8 17 25 33 38
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.
23
CS-E24DKE CU-E24DKE
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 .
Horizontal Airflow
1. Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as
stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as
Figure 1 below.
Operation Mode Vane Angle (°)
Heating, with heat exchanger temperature A 18 ~ 62
B 90
Cooling, Soft Dry and Fan, Ion 18 ~ 62
2. Manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the
positions of the vane are as Figure 2 above.
Pattern 1 2 3 4 5
Airflow Direction
Patterns at Remote
Control
Vane Angle (°) 40 18 29 51 62
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CS-E24DKE CU-E24DKE
8.1.10. 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 conditio ns 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.
D. 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 -100 rpm from setting fan speed.
8.1.10.1. Quiet operation under Soft Dry operation (Dry area at Dry Mode)
Automatic Fan Speed (Dry operation)
Manual Fan Speed (Dry operation)
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CS-E24DKE CU-E24DKE
8.1.10.2. 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 conditio ns 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.
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 -100 rpm from setting fan speed.
3. Fan Speed Auto
•
If FM
Lo
-100 rpm reduce from normal Heating Auto Fan Speed
•
If FM
Lo
maintain RPM
Indoor FM RPM depend s on pipe temp sensor of indoor heat exchanger.
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CS-E24DKE CU-E24DKE
8.1.11. 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
8.1.12. Delay ON Timer Control
Delay 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.
Seventy minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to determine
the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time.
From the above judgment, the decided operation will start operate earlier than the set time as shown below.
8.1.13. Delay OFF Timer Control
Delay OFF timer can be set using remote control, the unit with timer set will stop operate at set time.
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8.1.14. 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.
8.1.15. Indication Panel
LED POWER TIMER QUIET POWERFUL ION ALLERGEN
BUSTER
Color Green Orange Orange Orange Green Blue
Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Ion Mode ON Operation ON
Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Ion Mode OFF Operation OFF
Note:
•
If POWER 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.
•
If Ionizer, LED is blinking, there is an abnormality of Ionizer occurs.
8.1.16. Auto Operation Switch
1. When the switch is pressed between 0 to 5 seconds, Auto Mode operation starts to function.
2. When the switch is pressed between 5 to 8 seconds, the unit is forced to operate in Cooling Mode.
3. When the switch is pressed between 8 to 11 seconds, the unit will enter forced Heating Mode standby. Press timer decrement
button for 5S for the unit to operate in Heating Mode.
4. When the switch is pressed between 11 to 16 seconds and together with the signal from remote control (timer decrement button
for 5S), the unit can be changed to different controlling setting (4 type of transmission codes).
5. When the switch is pressed between 16 to 21 seconds, either “H14” error detection selection mode or the remote control signal
receiving sound can be cancelled or turned on.
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8.1.18. Ionizer Operation
8.1.17. Indoor Power Relay Control
Power relay will turn on during operation or in progress of stopping operation. Although operation stops, the power relay continues
on for three minutes.
However, during instantaneous power failure (< 0.5s), power relay will turn off. Then, it will turn on 2 minutes after power recover
and the unit will operate as previous operation condition.
Purpose
To provide fresh air effect to users by discharging minus ion to air.
Control Condition
a. Ionizer Only Operation.
1. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at remote control is pressed.
Fan & ionizer on, ION LED illuminates, but power LED maintain off. (1→2)
However, fan speed can be adjusted later by customer during this operation.
Airflow direction (Horizontal Vane) control:
Follow vane direction control at cooling mode.
Horizontal vane can be changed by customer during ion only operation.
b. Operation Mode + Ionizer Operation.
1. Ionising Operation Start Condition
When air conditioner unit is in “ON” condition (Heat, Cool, Dry, Auto mode) and ION operation button at remote control is
pressed. Ionizer on & ION LED illuminates. (3→4)
Power LED also illuminates.
2. Ionising Operation Stop Condition
When one of the following condition is satisfied, ION operation stops.
a. Stopped by ON/OFF switch.
b. Timer OFF activates.
c. ION feedback signal shows error.
3. Ionizer operation status is not memorised by micon. After OFF, when operation is “ON” again, air conditioner operates
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