Panasonic CS-W18CKP User 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 14
8 Operation Details 15
9 Operating Instructions 30
10 Installation Instructions 35
© 2002 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-W18CKP CU-W18CKP5
CS-W24CKP CU-W24CKP5
11 Installation and Servicing Air Conditioner Using R410A 45
12 Servicing Information 56
13 Troubleshooting Guide 60
14 Technical Data 62
15 Exploded View 66
16 Replacement Parts List 67
17 Exploded View 68
18 Replacement Parts List 69
19 Electronic Circuit Diagram 70
Room Air Conditioner
CONTENTS
Page Page
Order No. MAC0212093C2

• High Efficiency
• Compact Design
• Comfort Environment
− 8 hours of sleep mode operation
− 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 Washable 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
• Solar Refreshing Deodorizing Filter
− Remove unpleasant odour from the air
• Quality Improvement
− Gas leakage protection
− Prevent compressor reverse cycle
− Inner protector
− Noise prevention during soft dry operation.
− Anti-dew Formation Control (Cooling & Soft Dry)
− Overload Protection Control (Heating)
− Outdoor Fan Control
− Compressor High Pressure Control
− Blue Coated Condenser
− High resistance to corrosion.
• Operation Improvement
− Economy mode to reduce electrical power consumption
− Powerful mode to reach the desired room temperature
quickly
• Long Installation Piping
− Long piping up to 25 meter
• 24-hour Timer Setting
• Environmental Friendly
− R410A, which does not contain chlorine, is used as its
refrigerant, so there is no danger of damage to the
ozone layer in stratosphere.
1 Features
2
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

2 Functions
Remote Control
Operation OFF / ON
OFF / ON IRoom Temperature Setting
TEMP.
Operation Mode Selection
•AUTO Automatic Operation Mode
•HEAT Heating Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
MODE
TIME Time / Timer Setting
• Hours and minutes setting.
Clock Setting
• Current time setting.
Sleep Mode Operation OFF / ON
SLEEP
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
Economy Mode Operation OFF/ON
ECONOMY
Heating, 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-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Indoor Unit
Sleep Mode Auto Control
•Indoor Fan operates refer to Indoor Fan
Speed control.
•Operation stops after 8 hours.
Indoor Fan Speed Control
•High, Medium and Low.
•Automatic Fan Speed Mode
–Heating : Fan speed varies from Me
→SSLo in accordance with
indoor heat exchanger.
–Cooling : Fan rotates at Hi, Me and
SLo speed. Deodorizing
control is available.
–Soft Dry : Fan rotates at SLo 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
and Hot Start operation.
•
SLEEP (Orange) ......... Lights up in Sleep Mode
Operation.
•
TIMER (Orange) ......... Lights up in Timer Setting.
• POWERFUL (Orange) ... Lights up in Powerful
Mode Operation.
•
ECONOMY (Green) ...... Lights up in Economy
Mode Operation.
Operation Mode
•Heating, Cooling, Soft Dry and Automatic
Mode.
Powerful Operation
• Reaches the desired room temperature quickly.
Time Delay Safety Control
•Restarting is inhibited for appro. 3 minutes.
Economy Operation
•To reduce electrical power consumption.
7 Minutes Time Save Control
•Cooling Operation only.
Anti-Dew Formation Control
•Anti-Dew Formation Control for indoor unit
discharge area.
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)
Hot-Start Control
•At Heating Operation the indoor fan will
operate at SLo speed when indoor heat
exchanger temperature reaches 30°C.
Anti Cold Draft Control
•The indoor fan operates at Lo
–
(30 sec.)
after that SSLo when the indoor heat
exchanger temperature is low.
(During Heating mode thermal off)
4
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

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.
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.
•For Heating operation
Hi-speed ............. When outdoor
temperature reaches to 13.5°C.
Lo-speed ............. When outdoor
temperature reaches to 15.5°C.
•For Over-heating Protection, the Fan is
switched ON or OFF depending on the
piping temperature and the outdoor
temperature.
Deice Control
•To prevent frosting at outdoor heat
exchanger during Heating Operation.
4-Way Valve Control
•When the unit is switched to “OFF”
during Heating Operation, 4-way valve
stays at Heating position for 5 minutes.
5
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

3 Product Specifications
Unit CS-W18CK CU-W18CK
Power Source Phase, Voltage, Cycle Single, 230, 50 Hz
Cooling Capacity kW (BTU/h) 5.30 (18,100)
Heating Capacity kW (BTU/h) 5.55 (18,900)
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) Cooling; 13.3 (470)
Heating; 14.2 (500)
—
Indoor Air (Me) m3/min (cfm) Cooling; 14.8 (520)
Heating; 14.8 (520)
—
Indoor Air (Hi) m3/min (cfm) Cooling; 15.6 (550)
Heating; 16.4 (580)
40.0 (1,410)
Indoor Air (SHi) m3/min (cfm) Cooling; 16.4 (580)
Heating; 16.4 (580)
—
Noise Level dB (A) Cooling; High 43, Low 38
Heating; High 42, Low 38
Cooling; High 55
Heating; High 56
Power level dB Cooling; 55
Heating; 53
Cooling; 68
Heating; 69
Electrical Data Input Power kW Cooling; 1.65
Heating; 1.70
Running Current ACooling; 7.4
Heating; 7.6
EER W/W (BTU/hW) Cooling; 3.21 (10.95)
COP W/W (BTU/hW) Heating; 3.26 (11.13)
Starting Current A27.0
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 m1.9 —
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) 121 (55.0)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW —1.4
6
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Unit CS-W18CK CU-W18CK
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 PC + AES + Glass Fiber 15%
Motor Type Transistor (8-poles) Induction (4-poles)
Input W53.5 130
Rated Output W30 67
Fan Speed Low rpm Cooling; 1,160
Heating; 1,240
640
Medium rpm Cooling; 1,290
Heating; 1,290
—
High rpm Cooling; 1,360
Heating; 1,400
1,000
SuperHigh rpm Cooling; 1,400
Heating; 1,400
—
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 16
Size (W × H × L) mm 810 × 315 × 25.4 769.2
732.9
× 660.4 × 44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (cm3) — RB68A OR FRE0L ALPHA 68M
Refrigerant (R410A) g (oz) —1,620 (57.2)
Thermostat Electronic Control Mechanical Control
Protection Device —Inner Protector
Capillary Tube Length mm —Cooling; 1,180, Heating; 1,048
Flow Rate l/min —Cooling; 8.7, Heating; 14.0
Inner Diameter mm —Cooling; 1.5, Heating; 1.8
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —50 µF, 370VAC
Fan Motor Capacitor µF, VAC —3.0 µF, 450VAC
Note:
• Specifications are subject to change without notice for further improvement.
7
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Unit CS-W24CK CU-W24CK
Power Source Phase, Voltage, Cycle Single, 230, 50 Hz
Cooling Capacity kW (BTU/h) 7.03 (24,000)
Heating Capacity kW (BTU/h) 7.72 (26,300)
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) Cooling; 14.4 (510)
Heating; 15.6 (550)
—
Indoor Air (Me) m3/min (cfm) Cooling; 16.4 (580)
Heating; 16.4 (580)
—
Indoor Air (Hi) m3/min (cfm) Cooling; 17.5 (620)
Heating; 18.1 (640)
Cooling; 47.2 (1,670)
Indoor Air (SHi) m3/min (cfm) Cooling; 18.1 (640)
Heating; 18.1 (640)
—
Noise Level dB (A) Cooling; High 47, Low 41
Heating; High 46, Low 41
Cooling; High 60
Heating; High 61
Power level dB Cooling; 59
Heating; 57
Coolling; 74
Heating; 74
Electrical Data Input Power kW Cooling; 2.78
Heating; 2.69
Running Current ACooling; 13.1
Heating; 12.9
EER W/W (BTU/hW) Cooling; 2.53 (8.63)
COP W/W (BTU/hW) Heating; 2.87 (9.79)
Starting Current A65.0
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 m1.9 —
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) 135 (61.0)
Compressor Type —Rotary (1 cylinder) rolling piston
type
Motor Type —Induction (2-poles)
Rated Output kW —2.2
8
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Unit CS-W24CK CU-W24CK
Air Circulation Type Cross-flow Fan Propeller Fan
Material ASHT-18 PC + AES + Glass Fiber 15%
Motor Type Transistor (8-poles) Induction (4-poles)
Input W53.5 190.0
Rated Output W30 108
Fan Speed Low rpm Cooling; 1,260
Heating; 1,360
680
Medium rpm Cooling; 1,430
Heating; 1,430
—
High rpm Cooling; 1,530
Heating; 1,580
1,170
SuperHigh rpm Cooling; 1,580
Heating; 1,580
—
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 16
Size (W ×H×L) mm 810 ×315 ×25.4 769.2
732.9
×660.4 ×44.0
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (cm3)—RB68A OR FRE0L ALPHA 68M
Refrigerant (R410A) g (oz) —1,780 (62.8)
Thermostat Electronic Control Mechanical Control
Protection Device —Inner Protector
Capillary Tube Length mm —Cooling; 663, Heating; 550
Flow Rate l/min —Cooling; 13.0, Heating; 29.0
Inner Diameter mm —Cooling; 1.6, Heating; 2.4
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —45 µF, 370VAC
Fan Motor Capacitor µF, VAC —3.0 µF, 450VAC
Note:
• Specifications are subject to change without notice for further improvement.
9
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

4 Dimensions
10
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

11
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

5 Refrigeration Cycle Diagram
12
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

6 Block Diagram
13
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

7 Wiring Diagram
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5
14

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 exchanger 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 Operation Details
8.1. 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 exchanger 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 the following conditions occur for 30 minutes continuously, anti-dew formation is controlled by indoor fan speed shift to
low (Changed to Lo+):
− 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.
• This control is cancelled immediately when above condition is changed.
15
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Automatic Fan Speed Mode
Cooling Operation Time Diagram
When Automatic Fan Speed is selected at Remote Control during cooling operation.
• Fan speed rotates in the range of Hi to Me.
• Deodorizing Control.
16
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Time Delay Safety Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Anti-Dew Formation Control
Automatic Fan Speed Mode
8.2. 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 SLo 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 SLo speed.
• Deodorizing Control.
17
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Soft Dry Operation Time Diagram
18
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Time Delay Safety Control
Overload Protection Control
4-way Valve Control
Hot Start Control
8.3. Heating Mode Operation
• Heating in operation according to Remote Control setting.
• When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when
the Power Switch, Remote Control is turned ON or the power supply is resumed.
• When the setting temperature is reached during heating operation, the compressor stops and it will not start for 4 minutes.
(a) Outdoor Fan Control
• If the temperature of the Outdoor Heat Exchanger less than -3°C, Outdoor Fan is ON. The Outdoor Fan stop, when Outdoor
Heat Exchanger temperature is Tbor more according to Outdoor Air Temperature region as table below:
The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49°C.
During starting of Heating mode and after deice, Outdoor Fan ON for 90 sec. (Hi).
(b) Compressor High Pressure Control
• If the indoor heat exchanger becomes 68°C or more, the compressor will stop and restart automatically.
(Time Delay Safety Control - 4 minutes waiting).
• 4-way valve ON during Heating operation, except deicing operation.
• When the unit is switched to “OFF”during Heating operation, 4-way valve stays at Heating position for 5 minutes.
When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30°C as diagram shown.
Hot Start is completed when indoor heat exchanger reaches 42°C.
Maximum Hot start duration = 4 minutes. After 4 minutes,
Hot start operation will be shifted to normal Heating operation.
19
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5

Automatic Fan Speed Mode
Anti Cold Draft Control
When Automatic Fan Speed is selected at Remote Control during heating operation.
• Fan speed rotates in the range of Me →SLo according to the heat exchanger temperature.
20
CS-W18CKP CU-W18CKP5 / CS-W24CKP CU-W24CKP5