Panasonic CU-C18CKV, CS-C18CKV, CS-C24CKV, CU-C24CKV Service Manual
1 Features 2
2 Functions
3
3 Product Specifications
6
4 Dimensions
10
5 Refrigeration Cycle Diagram
12
6 Block Diagram
13
7 Wiring Diagram
15
8 Operation Details
17
8.1. Indoor Fan Speed Control
17
8.2. Cooling Mode Operation
18
8.3. Soft Dry Mode Operation
22
8.4. Air Circulation Mode Operation
24
8.5. Automatic Mode Operation
24
8.6. Powerful Mode Operation
25
8.7. Random Auto Restart Control
25
© 2003 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-C18CKV CU-C18CKV
CS-C24CKV CU-C24CKV
8.8. Airflow Direction Control 26
8.9. Delay ON Timer Control
27
8.10. Remote Control Signal Receiving Sound
27
8.11. Ionizer Operation
28
9 Operating Instructions
32
10 Installation Instructions
40
10.1. Safety Precautions
40
10.2. INDOOR UNIT
43
10.3. OUTDOOR UNIT
46
11 3-way Valve
50
11.1. Air Purging of the Piping and Indoor Unit
51
12 Servicing Information
57
12.1. Indoor Electronic Controllers Removal Procedures
57
12.2. Cross Flow Fan and Indoor Fan Motor Removal
Procedures
58
Air Conditioner
CONTENTS
Page Page
Order No. MAC0311039C3
13 Troubleshooting Guide 61
13.1. Refrigeration cycle system
61
14 Technical Data
63
15 Exploded View
65
16 Replacement Parts List
66
17 Exploded View
67
18 Replacement Parts List
68
•
• •
•
High Efficiency
•
• •
•
Compact Design
•
• •
•
Comfort Environment
−
− −
−
Ionizer control for generate negative ion in discharge air
−
− −
−
Air filter with function to reduce dust and smoke
−
− −
−
Wider range of horizontal discharge air
−
− −
−
New Automatic air swing and manual adjusted by
remote control for horizontal airflow.
•
• •
•
Auto Restart
−
− −
−
Random auto restart after power failure for safety restart
operation
•
• •
•
Removable and Washa ble Front Panel
•
• •
•
Remote Control Self-illuminating Button
•
• •
•
Catechin Air Purifying Filter
−
− −
−
Trap dust, tobacco smoke and tiny particles
−
− −
−
Prevent the growth of bacteria and viruses trapped
19 Electronic Circuit Diagram 69
19.1. REMOTE CONTROL
73
19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT
BOARD
74
19.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT
BOARD
75
•
• •
•
Triple Deodorizing Filter
−
− −
−
Absorb odours produced by wall paper, construction
material and living environment
•
• •
•
Quality Improvement
−
− −
−
Gas leakage protection
−
− −
−
Prevent compressor reverse cycle
−
− −
−
Inner protector (C24CKV), O.L.P. (C18CKV)
−
− −
−
Noise prevention during soft dry operation
−
− −
−
Anti-dew Formation Control (Cooling & Soft Dry)
−
− −
−
Blue Coated Condenser
−
− −
−
High resistance to corrosion.
•
• •
•
Operation Improvement
−
− −
−
Quiet mode to provide quiet operation
−
− −
−
Powerful mode to reach the desired room temperature
quickly
•
• •
•
Long Installation Piping
−
− −
−
Long piping up to 25 meter
•
• •
•
24-hour Timer Setting
1 Features
2
CS-C18CKV CU-C18CK V / CS-C24CKV CU-C24CKV
2 Functions
Remote Control
Operation OFF / ON
OFF / ON I
Room Temperature Setting
TEMP.
Operation Mode Selection
•
AUTO
Automatic Operation Mode
•
COOL
Cooling Operation Mode
•
DRY
Soft Dry Operation Mode
•
FAN
Air Circulation Mode
MODE
TIME
Time / Timer Setting
• Hours and minutes setting.
Clock Setting
• Current time setting.
Ionizer Operation OFF / ON
Indoor Fan Speed Selection
FAN SPEED
•
FAN
Low Fan Speed
•
FAN
Medium Fan Speed
•
FAN
High Fan Speed
•
AUTO
Automatic Fan Speed
FAN
Vertical Airflow Direction Control
• 24-hour, OFF / ON Real Timer Setting.
ON-TIMER
OFF-TIMER
Timer Operation Selection
SET
CANCEL
Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
CLOCK
AIR SWING
• 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).
Powerful Mode Operation OFF/ON
POWERFUL
Quiet Mode Operation OFF/ON
QUIET
Cooling, Soft Dry Operation.
• Temperature Setting (16°C to 30°C)
Automatic Operation
•
Operation with 2°C higher than
standard temperature.
• Operation with standard temperature.
•
Operation with 2°C lower than
standard temperature.
Self illuminating
button
3
CS-C18CKV CU-C18CK V / CS-C24CKV CU-C24CKV
Indoor Unit
Random Auto Restart Control
• Operation is restarted randomly after
power failure at previous setting mode.
Anti-Freezing Control
• Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
Ionizer Control
• Ionizer control for generate negative ion
in discharge air.
Indoor Fan Speed Control
• High, Medium and Low.
• Automatic Fan Speed Mode
– Cooling : Fan rotates at Hi, Me and
Lo- speed. Deodorizing
control is available.
– Soft Dry: Fan rotates at Lo- speed.
Deodorizing control
is available.
• Automatic air swing and manual adjusted
by remote control for vertical and
horizontal airflow.
Airflow Direction Control
Automatic Operation Button
• Press for < 5s to operate Automatic
operation mode.
(Used when the remote control cannot be used.)
• Press continuously for 5s or < 10s to
operate Test Run/Pump down. “Beep”
sound will be heard at the 5th second.
(Used when test running or servicing.)
• Press continuously for 10s and above to
omit or resume the remote control signal
receiving sound. “Beep, beep” sound will
be heard at the 10th second.
AUTO
OFF / ON
Operation Indication Lamps (LED)
•
POWER
(Green) ........ Lights up in operation,
blinks in Automatic
Operation Mode
judging.
•
QUIET
(Orange) ........ Lights up in Quiet
Mode Operation.
•
TIMER
(Orange) ....... Lights up in Timer
Setting.
•
POWERFUL
(Orange) .. Lights up in Powerful
Mode Operation.
•
(Green) ........... Lights up in Ionizer
Mode Operation.
Operation Mode
• Cooling, Soft Dry, Air Circulation and
Automatic Mode.
Powerful Operation
• Reaches the desired room temperature
quickly.
Time Delay Safety Control
•
Restarting is inhibited for appro. 3 minutes.
Quiet Operation
• To provide quiet operation.
7 Minutes Time Save Control
• Cooling Operation only.
Anti-Dew Formation Control
• Anti-Dew Formation Control for indoor
unit discharge area.
4
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Outdoor Unit
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
60 Secs. Forced Operation Control
• Once the compressor is activated, it
does not stop within the first 60 secs.
However, it stops immediately with
remote control stop signal.
Overload Protector
• Inner protector (C24CKV).
• O.L.P. (C18CKV).
Compressor Reverse Rotation
Protection Control
Outdoor Fan Operation Control
• 6-pole induction motor (2 speed).
• For Cooling or Soft Dry operation
Hi-speed ............. When outdoor
temperature reaches to 31°C.
Lo-speed ............. When outdoor
temperature reaches to 29°C.
5
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
3 Product Specifications
Unit CS-C18CKV CU-C18CKV
Power Source Phase, Voltage, Cycle Single, 220, 60 Hz
Cooling Capacity kW (BTU/h) 5.30 (18,100)
Moisture Removal l/h (Pint/h) 2.9 (6.1)
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 12.8 (450) 26.5 (930)
Indoor Air (Me) m3/min (cfm) 13.8 (486) —
Indoor Air (Hi) m3/min (cfm) 14.9 (526) 38.5 (1,360)
Indoor Air (SHi) m3/min (cfm) 15.5 (546) —
Noise Level dB (A) High 42, Low 37 High 54
Electrical Data Input Power kW 1.72
Running Current A 8.0
EER W/W (BTU/hW) 3.08 (10.52)
Starting Current A 47.0
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 3-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 mm 650 —
Power Cord Length m 1.9 —
Number of core-wire 3 (1.5 mm2) —
Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)
Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)
Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300)
Net Weight lb (kg) 24 (11.0) 106 (48.0)
Compressor Type — Rotary (1 cylinder)
rolling piston type
Motor Type — Induction (2-poles)
Rated Output kW — 1.2
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 AES + PC + GF 15%
Motor Type Transistor (8-poles) Induction (6-poles)
Input W 44.8 139
Rated Output W 30 52
Fan Speed Low rpm 1,130 670
Medium rpm 1,220 —
High rpm 1,320 975
SuperHigh rpm 1,370 —
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Blue Coat)
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×15 2×31
FPI 21 18
Size (W × H × L) mm 810 × 315 × 25.4 775.2
753.5
× 651.0 × 25.4
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS
M60 (1,000)
6
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Unit CS-C18CKV CU-C18CKV
Refrigerant (R-22) g (oz) — 1,240 (43.8)
Thermostat Electronic Control Mechanical Control
Protection Device — O.L.P.
Capillary Tube Length mm — 650
Flow Rate l/min — 20.9
Inner Diameter mm — 1.9
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC — 40 µF, 370VAC
Fan Motor Capacitor µF, VAC — 3.0 µF, 450VAC
Note:
•
• •
•
Specifications are subject to change without notice for further improvement.
7
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Unit CS-C24CKV CU-C24CKV
Power Source Phase, Voltage, Cycle Single, 220, 60 Hz
Cooling Capacity kW (BTU/h) 7.03 (24,000)
Moisture Removal l/h (Pint/h) 4.0 (8.5)
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 13.9 (492) 27.4 (970)
Indoor Air (Me) m3/min (cfm) 15.4 (544) —
Indoor Air (Hi) m3/min (cfm) 16.9 (597) 45.0 (1,590)
Indoor Air (SHi) m3/min (cfm) 17.5 (617) —
Noise Level dB (A) High 46, Low 40 High 59
Electrical Data Input Power kW 2.55
Running Current A 12.0
EER W/W (BTU/hW) 2.76 (9.41)
Starting Current A 63.0
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 5/8”
L ; Half Union 1/4”
G ; 3-way valve 5/8”
L ; 3-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 mm 650 —
Power Cord Length m 1.9 —
Number of core-wire 3 (2.5 mm2) —
Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)
Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)
Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300)
Net Weight lb (kg) 24 (11.0) 133 (60.5)
Compressor Type — Rotary (1 cylinder) rolling piston
type
Motor Type — Induction (2-poles)
Rated Output kW — 1.8
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 AES + PC + GF 15%
Motor Type Transistor (8-poles) Induction (4-poles)
Input W 44.8 182
Rated Output W 30 118
Fan Speed Low rpm 1,220 730
Medium rpm 1,350 —
High rpm 1,480 1,200
SuperHigh rpm 1,530 —
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Blue Coat)
Fin Type Slit Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×15 2×26
FPI 21 18
Size (W × H × L) mm 810 × 315 × 25.4 769.2
732.9
×660.4×44
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS
M60 (1,130)
Refrigerant (R-22) g (oz) — 1,700 (60.0)
Thermostat Electronic Control Mechanical Control
Protection Device — Inner Protector
8
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Unit CS-C24CKV CU-C24CKV
Capillary Tube Length mm — 1,170
Flow Rate l/min — 21.1
Inner Diameter mm — 2.4
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC — 60 µF, 370VAC
Fan Motor Capacitor µF, VAC — 5.0 µF, 400VAC
Note:
•
• •
•
Specifications are subject to change without notice for further improvement.
9
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
4 Dimensions
10
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
11
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
5 Refrigeration Cycle Diagram
12
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
6 Block Diagram
13
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
14
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
7 Wiring Diagram
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
15
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
16
8 Operation Details
8.1. Indoor Fan Speed Control
•
• •
•
Auto Fan Speed Control
When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table.
•
• •
•
Manual Fan Speed Control
Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button at the remote
control.
COOL / DRY CS-C24CKV CS-C18CKV
SHi 1530 1370
Hi 1480 1320
Me 1350 1220
Lo+ 1300 1200
Lo 1220 1130
Lo- 1070 980
SLo 830 760
QHi 1380 1220
QMe 1250 1120
QLo 1120 1030
17
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Save Control
Anti-Freezing Control
•
• •
•
If the temperature of the indoor heat exchan ger falls
continuously below 2°C for 4 minutes or more, the
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
•
• •
•
Compressor will restart again when the indoor heat
exchanger temperature rises to 10°C (Recovery).
3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
Compressor Reverse Rotation Protection Control
Anti-Dew Formation Control
8.2. Cooling Mode Operation
•
• •
•
When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON.
•
• •
•
When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
•
• •
•
The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
ON temperature and OFF temperature.
•
• •
•
If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and
indoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
!
T = Intake air temperature - Indoor heat exchan ger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
•
• •
•
Purpose is to prevent dew formation on indoor unit air discharge area.
•
• •
•
When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will
activate:
−
− −
−
Indoor intake air temperature is more than 24°C and less than 30°C.
−
− −
−
Remote Control setting temperature is less than 25°C.
−
− −
−
Compressor is on.
−
− −
−
Cooling operation mode.
−
− −
−
Indoor Fan motor operate at Low fan speed or QLo.
•
• •
•
This control is cancelled immediately when above condition is changed.
•
• •
•
Anti-Dew formation is control by:
1. Lo fan speed
Lo fan is changed to Lo+ fan
18
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Automatic Fan Speed Mode
2. QLo fan speed (Transistor Motor)
3. QLo fan speed (Induction Motor)
When Automatic Fan Speed is selected at Remote Control during cooling operation.
•
• •
•
Fan speed rotates in the range of Hi to Me.
•
• •
•
Deodorizing Control.
19
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Cooling Operation Time Diagram
Quiet Operation Control
(For Cooling Mode or cooling region of Soft Dry Mode)
•
• •
•
Purpose of this operation is to provide quite cooling operation compare to normal operation.
•
• •
•
When the Quiet Mode is set at the remote control, Quiet Mode LED illuminates, the sound level will be automatically decreased
3 dB, against the present sound level operation.
•
• •
•
Quiet setting of fan speed rpm refer to Indoor Fan Speed Control.
•
• •
•
Dew formation become severe at Quiet Lo cool, therefore:
i) For Transistor Motor
Quiet Lo Cool is operated only 1h 30 minute (1h QLo, 30 min QLo+100). After that, it goes back to QLo+180 rpm. (However
quiet LED remains on).
ii) For Induction Motor
Quiet Lo Cool is operated only 1h 30 minute (1h QLo, 30 min QLo+80). After that, it goes back to QLo+170 rpm. (However quiet
LED remains on).
20
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
•
• •
•
Manual Fan Speed:-
−
− −
−
RPM control during Lo cool
−
− −
−
RPM control during Hi & Me cool
•
• •
•
Auto Fan Speed:-
•
• •
•
Quiet Mode Operation will stop if:-
−
− −
−
Quiet mode button is pressed again.
−
− −
−
Stopped by ON/OFF switch.
−
− −
−
Timer OFF activates.
−
− −
−
Powerful mode button is pressed.
−
− −
−
When change mode to Air Circulation mode.
21
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Time Delay Safety Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Anti-Dew Formation Control
Automatic Fan Speed Mode
8.3. Soft Dry Mode Operation
•
• •
•
The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and
then Soft Dry operation will start.
•
• •
•
During Soft Dry operation, the Indoor Fan will operate at Lo- speed.
•
• •
•
Once room temperature reaches below Soft Dry OFF temperature. Indoor Fan, Compressor and Outdoor Fan stop for 6
minutes.
•
• •
•
Once the compressor stops, it will not start for 3 minutes during Cooling operation.
•
• •
•
Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor
stops.)
•
• •
•
Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waiting
is valid during compressor stops.)
•
• •
•
Same as Anti-Dew Formation Control for Cooling Mode operation.
When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.
•
• •
•
Fan speed off and on at Lo- speed.
•
• •
•
Deodorizing Control.
22
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
Soft Dry Operation Time Diagram
Quiet Operation Control
•
• •
•
Same as Quiet Operation Control for Cooling Mode operation.
23
CS-C18CKV CU-C18CK V / CS-C24 CKV CU- C24CKV
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