Panasonic CS-W12CTP User manual

1 Functions 3
2 Product Specifications 6
3 Dimensions 12
4 Refrigeration Cycle Diagram 14
5 Block Diagram 16
6 Wiring Diagram 18
7 Operation Details 20
7.1. Cooling Mode Operation 20
7.2. Soft Dry Mode Operation 23
7.3. Heating Mode Operation 25
7.4. Automatic Mode Operation 31
© 2003 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-W12CTP CU-W12CTP5
CS-W18CTP CU-W18CTP5
CS-W24CTP CU-W24CTP5
7.5. Sleep Mode Auto Operation 32
7.6. Random Auto Restart Control 33
7.7. Delay ON Timer Control 33
7.8. Remote Control Signal Receiving Sound 33
7.9. Indoor Fan Speed Control 34
7.10. Airflow direction control 34
7.11. Soft starter (Applicable only for Australia market) 35
8 Operating Instructions 36
9 Installation Instructions 44
9.1. Safety Precautions 44
Room Air Conditioner
CONTENTS
Page Page
Order No. MAC0305008C2

9.2. INDOOR UNIT 47
9.3. OUTDOOR UNIT 50
10 Installation and Servicing Air Conditioner Using R410A 56
10.1. OUTLINE 56
10.2. TOOL FOR INSTALLING / SERVICING REFRIGERANT
PIPING 57
10.3. REFRIGERANT PIPING WORK 61
10.4. INSTALLATION, TRANSFERRING, SERVICING 63
11 Servicing Information 67
12 Troubleshooting Guide 68
12.1. Refrigeration cycle system 68
13 Technical Data 70
14 Exploded View 74
15 Replacement Parts List 75
16 Exploded View 76
17 Replacement Parts List 77
18 Exploded View 78
19 Replacement Parts List 79
20 Electronic Circuit Diagram 80
20.1. REMOTE CONTROL 90
20.2. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT
BOARD
91
2
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

1 Functions
MODE SLEEP
FAN SPEED
RESET
TIMER
AUTO
MANUAL
AUT
AUT
O
HEA
HEA
T
COOL
COOL
DR
DR
Y
FAN
SPEED
SPEED
H
H
OFF OFF ON
ON
AB
AB
TEMP OFF/ON
AIR SWING
SELECTSET/CANCEL
Remote Control
Operation OFF / ON Room Temperature Setting
TEMP.
Operation Mode Selection
• AUTO Automatic Operation Mode
•
HEAT Heating Operation Mode
•
COOL Cooling Operation Mode
•
DRY Soft Dry Operation Mode
MODE
Sleep Mode Operation OFF / ON
Indoor Fan Speed Selection
FAN SPEED
• Low Fan Speed
•Medium Fan Speed
•High Fan Speed
•
AUTO Automatic Fan Speed
Airflow Direction Control
TIMER
12-hour Timer Setting
AIR SWING
• AUTO Automatic Airflow Direction
Control
•
MANUAL Airflow Direction Manual
Control
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.
•SELECT To select delay OFF Timer,
ON Timer, OFF/ON Timer
and ON/OFF Timer
•To set hours setting
•To set hours setting
•SET/CANCELTo start delay OFF and ON
timer, cancellation
OFF / ON I
Self illuminating
button
SLEEP
3
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Indoor Unit
Sleep Mode Auto Control
• Indoor Fan operates refer to Indoor Fan
Speed.
• 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.
– Soft Dry : Fan rotates at Lo- speed.
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for 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,
deice operation and
hotstart.
• SLEEP (Orange) ......... Lights up in Sleep Mode
Operation.
• TIMER (Orange) ....... Lights up in Timer
Setting.
•
AIR SWING (Orange) ... Lights up in Auto Air
Swing Mode Operation.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
• Cooling Operation only.
Anti-Dew Formation Control
• Anti-Dew Formation Control for indoor unit
discharge area.
Anti-Freezing Control
• Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
Random Auto Restart Control
• Operation is restarted randomly after
power failure at previous setting mode.
Operation Mode
• Heating, Cooling, Soft Dry and Automatic
Mode.
30 Minutes Time Save Control
• Heating Operation only.
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 SSLo when the
indoor heat exchanger temperature is low.
(During Heating mode thermal off)
4
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Outdoor Unit
CU-W12CTP5
• 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
• OLP to protect the compressor for W12CT
only.
Inner protector for W18CT & W24CT only.
Compressor Reverse Rotation
Protection Control
Outdoor Fan Operation Control
W18 / 24CT
• 4-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.
W12CT
• 6-pole induction motor (1 speed).
CU-W18CTP5
CU-W24CTP5
4-Way Valve Control
• When the unit is switched to “OFF” during
Heating Operation, 4-way valve stays at
Heating position for 5 minutes.
Overload Protection Control
• Outdoor fan stops when indoor heat
exchanger temperature rises to 51°C and
above, and restarts when the indoor heat
exchanger temperature drops to 49°C and
below (W12CT).
• Compressor stop when indoor heat
exchanger temperature reaches 65°C
(W12CT), 68°C (W18CT & W24CT).
(Heating Operation Only)
Deice Control
• To prevent frosting at outdoor heat ex-
changer. (Only for Heating Operation)
Compressor Protection Control
• If the outdoor fan motor is not running after
compressor starts for 50 secs., compressor
will stop. (Cooling and Soft Dry Operation
only).
5
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

2 Product Specifications
Unit CS-W12CTP CU-W12CTP5
Power Source Phase
V
Cycle
Single
230
50
Cooling Capacity kW
Btu/h
kcal/h
3.60
12,300
3,100
Heating Capacity kW
Btu/h
kcal/h
3.95
13,500
3,400
Moisture Removal l/h
Pint/h
2.1
4.4
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 7.5 (260)
Heating: 7.5 (260)
—
Indoor Air (Me) m3/min (cfm) Cooling: 8.9 (310)
Heating: 8.9 (310)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 9.7 (340)
Heating: 9.7 (340)
33.0 (1,160)
Noise Level dB (A) Cooling: High 39; Low 33
Heating: High 39; Low 33
Cooling: High 49
Heating: High 49
Power Noise Level dB (A) Cooling: High 52
Heating: High 52
Cooling: High 64
Heating: High 65
Electrical Data Input Power W Cooling: 1,150
Heating: 1,180
Running Current ACooling: 5.1
Heating: 5.3
EER W/W (Btu/hW) 3.13 (10.7)
COP W/W (Btu/hW) 3.35 (11.4)
Starting Current A 17.8
Piping Connection Port
(Flare piping)
inch
inch
G ; Half Union 1/2”
L ; Half Union 1/4”
G ; 3-way valve 1/2”
L ; 2-way valve 1/4”
Pipe Size
(Flare piping)
inch
inch
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
G (gas side) ; 1/2”
L (liquid side) ; 1/4”
Drain
Hose
Inner diameter mm 20 —
Length m 0.6 —
Power Cord Length
Number of core-wire
m 1.8
3 (1.0 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 21 - 9/32 (540)
Width inch (mm) 40 - 1/2 (1,028) 30 - 23/32 (780)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/32 (289)
Net Weight lb (kg) 40 (18) 77 (35)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW — 0.78
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 PP
Motor Type Induction (4-poles) Induction (6-poles)
Input W 79.0 73
Rated Output W 29 33
Fan Speed Low rpm Cooling: 640
Heating: 640
—
Medium rpm Cooling: 760
Heating: 760
—
High rpm Cooling: 830
Heating: 830
845
6
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Unit CS-W12CTP CU-W12CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12 2×24
FPI 20 17
Size (W × H × L) mm 857 × 252 × 25.4 705.8 × 504 × 36.38
735.1
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (c.c) — RB68A or Freol Alpha 68M
(330)
Refrigerant (R410A) g (oz.) — 1,060 (37.4)
Thermostat Electronic Control —
Protection Device —Overload Protector
Capillary Tube Length mm —Cooling: 850, Heating: 590
Flow Rate l/min — Cooling: 4.5, Heating: 8.2
Inner Diameter mm —Cooling: 1.1, Heating: 1.3
Air Filter Material
Style
P.P.
Honeycomb
—
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —35 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 440VAC 2.0 µF, 450VAC
• • •
• Specifications are subject to change without notice for further improvement.
7
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Unit CS-W18CTP CU-W18CTP5
Power Source Phase
V
Cycle
Single
230
50
Cooling Capacity kW
Btu/h
kcal/h
5.20
17,700
4,470
Heating Capacity kW
Btu/h
kcal/h
5.80
19,800
4,990
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: 9.7 (340)
Heating: 10.2 (360)
25.6 (900)
Indoor Air (Me) m3/min (cfm) Cooling: 10.7 (380)
Heating: 10.7 (380)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 12.4 (440)
Heating: 12.4 (440)
40 (1,410)
Noise Level dB (A) Cooling: High 45; Low 39
Heating: High 45; Low 39
Cooling: High 55
Heating: High 56
Power Noise Level dB (A) Cooling: High 58
Heating: High 58
Cooling: High 68
Heating: High 69
Electrical Data Input Power W Cooling: 1,690
Heating: 1,740
Running Current ACooling: 7.6
Heating: 7.9
EER W/W (Btu/hW) 3.07 (10.5)
COP W/W (Btu/hW) 3.33 (11.4)
Starting Current A 27
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 20 —
Length m 0.6 —
Power Cord Length
Number of core-wire
m 1.8
3 (1.5 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 26 - 31/32 (685)
Width inch (mm) 40 - 1/2 (1,028) 31 - 1/2 (800)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/16 (300)
Net Weight lb (kg) 44 (20) 121 (55)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW — 1.4
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 AES + PC + GF15%
Motor Type Induction (4-poles) Induction (4-poles)
Input W 104.1 130
Rated Output W 51 67
Fan Speed Low rpm Cooling: 840
Heating: 880
640
Medium rpm Cooling: 920
Heating: 920
—
High rpm Cooling: 1,070
Heating: 1,040
1,020
8
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Unit CS-W18CTP CU-W18CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12
+
1×10
2×26
FPI 20 16
Size (W × H × L) mm 857 × 252 × 25.4
+
857 × 210 × 12.7
769.2
732.9
×660.4×44
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (c.c) — RB68A or Freol Alpha 68M
(670)
Refrigerant (R410A) kg (oz.) — 1.80 (63.5)
Thermostat Electronic Control Mecha. Control
Protection Device — Inner Protector
Capillary Tube Length mm —Cooling: 405, Heating: 1,048
Flow Rate l/min — Cooling: 7.8, Heating: 14.0
Inner Diameter mm —Cooling: 1.2, 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, 440VAC 3.0 µF, 450VAC
• • •
• Specifications are subject to change without notice for further improvement.
9
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Unit CS-W24CTP CU-W24CTP5
Power Source Phase
V
Cycle
Single
230
50
Cooling Capacity kW
Btu/h
kcal/h
6.90
23,500
5,930
Heating Capacity kW
Btu/h
kcal/h
7.65
26,100
6,580
Moisture Removal l/h
Pint/h
3.9
8.2
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 10.5 (370)
Heating: 11.0 (390)
27.4 (970)
Indoor Air (Me) m3/min (cfm) Cooling: 11.8 (420)
Heating: 11.8 (420)
—
Indoor Air (Hi) m3/min (cfm) Cooling: 12.9 (460)
Heating: 12.9 (460)
47.2 (1,670)
Noise Level dB (A) Cooling: High 47; Low 42
Heating: High 47; Low 42
Cooling: High 60
Heating: High 61
Power Noise Level dB (A) Cooling: High 60
Heating: High 60
Cooling: High 74
Heating: High 75
Electrical Data Input Power W Cooling: 2,750
Heating: 2,890
Running Current ACooling: 13.0
Heating: 13.7
EER W/W (Btu/hW) 2.51 (8.6)
COP W/W (Btu/hW) 2.65 (9.0)
Starting Current A 65
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 20 —
Length m 0.6 —
Power Cord Length
Number of core-wire
m 1.8
3 (2.5 mm2)
—
—
Dimensions Height inch (mm) 21 - 9/32 (540) 26 - 31/32 (685)
Width inch (mm) 40 - 1/2 (1,028) 31 - 1/2 (800)
Depth inch (mm) 7 - 7/8 (200) 11 - 13/16 (300)
Net Weight lb (kg) 44 (20) 135 (61)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output kW — 2.2
Air Circulation Type SIROCCO Propeller Fan
Material ABS STYLAC 181 AES + PC + GF15%
Motor Type Induction (4-poles) Induction (4-poles)
Input W 104.1 171.3
Rated Output W 51 108
Fan Speed Low rpm Cooling: 900
Heating: 940
680
Medium rpm Cooling: 1,010
Heating: 1,010
—
High rpm Cooling: 1,130
Heating: 1,100
1,170
10
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

Unit CS-W24CTP CU-W24CTP5
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium (Blue Coated)
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×12
+
1×10
2×26
FPI 20 16
Size (W × H × L) mm 857 × 252 × 25.4
+
857 × 210 × 12.7
769.2
732.9
×660.4×44
Refrigerant Control Device — Capillary Tube
Refrigeration Oil (c.c) — RB68A or Freol Alpha 68M
(1,130)
Refrigerant (R410A) kg (oz.) — 1.87 (66.0)
Thermostat Electronic Control Mecha. 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, 440VAC 3.0 µF, 450VAC
• • •
• Specifications are subject to change without notice for further improvement.
11
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

3 Dimensions
12
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

13
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

4 Refrigeration Cycle Diagram
14
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

15
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

5 Block Diagram
16
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

17
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

6 Wiring Diagram
18
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

19
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5

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
7 Operation Details
7.1. Cooling Mode Operation
• • •
• When the compressor is stopped by Remote Control, it restarts after 3 minutes when it is turned ON by Remote Control.
• • •
• 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 HLo):
− − −
− 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.
20
CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5