Panasonic CS-A12ATP5 User manual

1 Functions 2
2 Product Specifications 5
3 Dimensions 11
4 Refrigeration Cycle Diagram 13
5 Block Diagram 14
6 Wiring Diagram 16
7 Operation Details 18
8 Operating Instructions 21
9 Installation Instructions 25
© 2001 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-A12ATP5 CU-A12ATP5
CS-A18ATP5 CU-A18ATPT5
CS-A24ATP5 CU-A24ATPT5
10 Servicing Information 36
11 Troubleshooting Guide 37
12 Technical Data 39
13 Exploded View 42
14 Replacement Parts List 43
15 Exploded View 44
16 Replacement Parts List 45
17 Electronic Parts List 46
18 Electronic Circuit Diagram 47
Room Air Conditioner
CONTENTS
Page Page
Order No. MAC0112088C0

1 Functions
Remote Control Transmitter
Remote Control
Operation START/STOP
Operation Mode Selection
Indoor Fan Speed Selection
Room Temperature Setting / Time
Setting
Sleep Mode Auto-Control
●Starts/Stops when the button is pressed
Timer Operation Selection
●12 hours ON/OFF Dual Timer Setting
Timer Operation Set/Cancel
●Set/Cancel the selected Timer Operation
Airflow Direction Control
●Airflow Direction Manual Control
●Automatic Airflow Direction Control
SET/C
●Temperature Setting (20°C to 30°C)
● (higher), (standard), (lower)
... Automatic Operation
•AUTO Automatic Operation Mode
•HEAT Heating Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
•Low Fan Speed
•Medium Fan Speed
•High Fan Speed
TEMP
SLEEP
AUTO
HEAT
DRY
FAN
SPEED
OFF/ON
TEMP
MODE SLEEP FAN SPEED
AUTO
MANUAL
TIMER AIR SWING
OFF/ON SET/C
RESET
COOL
C
H H
OFF ON OFF ON
2
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Indoor Unit
Sensing The Room Temperature
●Room Temperature Sensor (thermistor)
Starting Current Control
●Indoor Fan is delayed for 1.6 seconds at the
starting
Time Delay Safety Control
●Restartingisinhibitedforapporox.3minutes
Circuit Protection Control
●30 seconds forced operation of the
compressor
Indoor Fan Speed Control
●High, Med, Low
Operation Indication Lamps (LED)
● POWER (green).........Lights up in operation
● AIR SWING (red).........Automatic Airflow
Direction in operation
● TIMER (orange) ........Timer in operation
● SLEEP (orange) ........Sleep Mode Auto in
operation
Soft Dry Operation Mode
●Intermittent operation of Fan at low speed
Room Temperature Control
●Maintainstheroomtemperatureaccordance
with the Setting Temp.
Hot-start Control (Heating)
●The indoor fan stops until the Evaporator
piping temperature will be reached.
Automatic Restarting Control
●7 minutes automatic restarting at Cooling,
Soft Dry operation.
Sleep Mode Auto Control
●TheFanisswitchedtoLowfanspeedandthe
unit will be stopped after 5 hours
●Thesettingtemperaturewillberaisedby1°C
atthestartingandby1°Conehourlater(Soft
Dry of Cooling Operation)
●The setting temperature will be dropped by
2°C at the starting and by 3°C one hour later
(Heating Operation)
Deice (defrost) Control
●Both the indoor and outdoor fan stops
during deicing
●Hot start after deice ends.
●Starts operation when indoor piping
temperature drops below temperature
setting 60 ± 10 minutes after heating
start or deice ends
●Operations LED flashes
Overload Protection
●Thermostat OFF if the Piping
temperature exceeds 100°C
Automatic Operation Determination
●Select cooling, dry or heating with the
indoor intake sensor
25°C or higher ........... cooling
21 to 24°C .................. dry
20°C or lower ............. heating
●5-minutes automatic restarting is
activated instead of 7-minutes.
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CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Outdoor Unit
Overload Protector
Anti-freezing Control For The
Evaporator
●Compressor will be stopped when the
Evaporator’s piping temperature is 0°C or
less for three minutes
●Restarting at 12°C or higher (Time Delay
Safety Control has a priority)
Airflow Direction Control
Automatic Airflow Direction Control
●Thelouverautomaticallyswingsupanddown
(Cooling, Soft Dry) ....... horizontal and 30°
downward
●The louver is set at 60°downward during
Heating Operation
●Thelouverisset athorizontalwhenthefanis
stopped
Airflow Direction Manual Control
●Canbe setwithina rangeathorizontal to60°
downward
30 sec. Forced Operation Control
●Oncethecompressor isactivateditdoes
not stop for 30 secs
●Stops immediately with remote control
stop
4
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

2 Product Specifications
Unit CS-A12ATP5 CU-A12ATP5
Cooling Capacity kW
BTU/h
kcal/h
3.35; 3.35; 3.40
11,400; 11,400; 11,600
2,870; 2,870; 2,920
Heating Capacity kW
BTU/h
kcal/h
4.00; 4.00; 4.10
13,600; 13,600; 13,900
3,430; 3,430; 3,500
Moisture Removal l/h
Pint/h 2.0 4.2
Power Source Phase
V
Cycle
Single
220; 230; 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 8.9 (314) —
Indoor Air (Me) m3/min (cfm) 9.6 (339) —
Indoor Air (Hi) m3/min (cfm) 10.0 (350) —
Noise Level dB (A) Cooling: High 45; 46; 46 Low 41; 42; 42
Heating: High 45; 46; 46 Low 41; 42; 42 Cooling: High 46; 47; 47 Heating: High 46; 47; 47
Power Noise Level dB (A) Cooling: High 59
Heating: High 59 Cooling: High 62 Heating: High 62
Electrical Data Input kW Cooling: 1.27; 1.28; 1.30
Heating: 1.27; 1.32; 1.35
Running Current ACooling: 6.0; 5.9; 5.8
Heating: 6.0; 6.1; 6.1
EER W/W (BTU/hW) Cooling: 2.64 (9.0); 2.62 (8.9); 2.62 (8.9)
COP W/W (BTU/hW) Heating: 3.15 (10.7); 3.03 (10.3); 3.04 (10.3)
Starting Current A25
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 m0.6 —
5
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A12ATP5 CU-A12ATP5
Power Cord Length
Number of core-wire m2.3 3 (1.0 mm2)— —
Dimensions Height inch (mm) 6 - 1/2 (165) 19 - 29/32 (505)
Width inch (mm) 43 - 5/16 (1,100) 30 - 23/32 (780)
Depth inch (mm) 25 - 19/32 (650) 9 - 21/32 (245)
Net Weight lb (kg) 62 (28) 88 (40)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—1,100
Air Circulation Type SIROCCO Propeller Fan
Material STYLAC 181 AES + Glass Fiber 12%
Motor Type Induction (4-poles) Induction (6-poles)
Input W45.6 58.6
Rated Output W20 20
Fan Speed Low rpm 980 —
Medium rpm 1,055 —
High rpm 1,100 730
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
1×10 2×19
FPI 21 16
Size (W × H × L) mm 900 × 254 × 22 706 × 482 × 44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(410)
Refrigerant (R-22) g (oz.) —1,090 (38.5)
Thermostat Electronic Control —
Protection Device —Overload Protector
Length mm —Cooling; 625, Heating; 720
Capillary Tube Flow Rate l/min —Cooling; 13.5, Heating; 11.0
Inner Diameter mm —Cooling; 1.6, Heating; 1.5
Air Filter Material
Style P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —30 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 1.2 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
6
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A18ATP5 CU-A18ATPT5
Cooling Capacity kW
BTU/h
kcal/h
5.05; 5.05; 5.10
17,200; 17,200; 17,400
4,340; 4,340; 4,390
Heating Capacity kW
BTU/h
kcal/h
5.35; 5.35; 5.45
18,200; 18,200; 18,600
4,600; 4,600; 4,690
Moisture Removal l/h
Pint/h 2.8 5.9
Power Source Phase
V
Cycle
Single
220; 230; 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 10.4 (354) —
Indoor Air (Me) m3/min (cfm) 10.7 (379) —
Indoor Air (Hi) m3/min (cfm) 11.5 (400) —
Noise Level dB (A) Cooling: High 50; 51; 51 Low 44; 46; 46
Heating: High 51; 52; 52 Low 45; 46; 46 Cooling: High 53; 56; 56 Heating: High 56; 57; 57
Power Noise Level dB (A) Cooling: High 64
Heating: High 65 Cooling: High 71 Heating: High 72
Electrical Data Input kW Cooling: 2.08; 2.13; 2.19
Heating: 1.90; 1.98; 2.04
Running Current ACooling: 10.3; 10.5; 10.7
Heating: 9.4; 9.7; 9.9
EER W/W (BTU/hW) Cooling: 2.43 (8.3); 2.37 (8.1); 2.33 (7.9)
COP W/W (BTU/hW) Heating: 2.82 (9.6); 2.70 (9.2); 2.67 (9.1)
Starting Current A47
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 m0.6 —
Power Cord Length
Number of core-wire m2.3 3 (1.5 mm2)— —
7
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A18ATP5 CU-A18ATPT5
Dimensions Height inch (mm) 6 - 1/2 (165) 26 - 31/32 (685)
Width inch (mm) 43 - 5/16 (1,100) 31 - 1/2 (800)
Depth inch (mm) 25 - 19/32 (650) 11 - 13/16 (300)
Net Weight lb (kg) 66 (30) 132 (60)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—1,700
Air Circulation Type SIROCCO Propeller Fan
Material STYLAC 181 CE10G15 JSR
Motor Type Induction (4-poles) Induction (4-poles)
Input W66.0 136.8 (High)
Rated Output W40 65
Fan Speed Low rpm 1,160 610
Medium rpm 1,250 —
High rpm 1,340 960
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×10 2×26
FPI 20 14
Size (W ×H×L) mm 900 ×254 ×44 769 ×660 ×44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(700)
Refrigerant (R-22) g (oz.) —1,550 (54.7)
Thermostat Electronic Control —
Protection Device —Inner Protector
Length mm —1,170
Capillary Tube 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 —35 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 3.5 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
8
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A24ATP5 CU-A24ATPT5
Cooling Capacity kW
BTU/h
kcal/h
6.00; 6.05; 6.10
20,400; 20,600; 20,800
5,140; 5,190; 5,240
Heating Capacity kW
BTU/h
kcal/h
6.00; 6.05; 6.20
20,400; 20,600; 21,100
5,140; 5,190; 5,310
Moisture Removal l/h
Pint/h 3.4 7.2
Power Source Phase
V
Cycle
Single
220; 230; 240
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 10.4 (370) —
Indoor Air (Me) m3/min (cfm) 11.2 (395) —
Indoor Air (Hi) m3/min (cfm) 12.0 (420) —
Noise Level dB (A) Cooling: High 51; 52; 52 Low 45; 47; 47
Heating: High 51; 52; 52 Low 45; 47; 47 Cooling: High 57; 59; 59 Heating: High 58; 60; 60
Power Noise Level dB (A) Cooling: High 65
Heating: High 65 Cooling: High 74 Heating: High 75
Electrical Data Input kW Cooling: 2.75; 2.80; 2.89
Heating: 2.40; 2.59; 2.62
Running Current ACooling: 13.3; 13.4; 13.6
Heating: 11.7; 12.3; 12.5
EER W/W (BTU/hW) Cooling: 2.18 (7.4); 2.16 (7.4); 2.11 (7.2)
COP W/W (BTU/hW) Heating: 2.50 (8.5); 2.33 (8.0); 2.37 (8.1)
Starting Current A59
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 20 —
Length m0.6 —
Power Cord Length
Number of core-wire m2.3 3 (2.5 mm2)— —
9
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Unit CS-A24ATP5 CU-A24ATPT5
Dimensions Height inch (mm) 6 - 1/2 (165) 26 - 31/32 (685)
Width inch (mm) 43 - 5/16 (1,100) 31 - 1/2 (800)
Depth inch (mm) 25 - 19/32 (650) 11 - 13/16 (300)
Net Weight lb (kg) 66 (30) 137 (62)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—2,200
Air Circulation Type SIROCCO Propeller Fan
Material STYLAC 181 CE10G15 JSR
Motor Type Induction (4-poles) Induction (4-poles)
Input W66.0 141.7 (High)
Rated Output W40 80
Fan Speed Low rpm 1,160 685
Medium rpm 1,250 —
High rpm 1,340 1,053
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium Aluminium
Fin Type Louver Fin Corrugated Fin
Row / Stage (Plate fin configuration, forced draft)
2×10 2×26
FPI 20 14
Size (W ×H×L) mm 900 ×254 ×44 769 ×660 ×44
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(700)
Refrigerant (R-22) g (oz.) —1,900 (67.1)
Thermostat Electronic Control —
Protection Device —Inner Protector
Length mm —1,170
Capillary Tube 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 —45 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.2 µF, 450VAC 3.5 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
10
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

3 Dimensions
11
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

12
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

4 Refrigeration Cycle Diagram
13
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

5 Block Diagram
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CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

15
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

6 Wiring Diagram
16
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

17
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Time Delay Safety Control
Automatic Restarting Control
Compressor Forced Operation Control
7 Operation Details
7.1. Cooling Mode Operation
When selecting the Cooling (COOL) Mode Operation, the unit will operate according to the setting by the Remote Control and
the operation is as the following.
3 min. --- The Compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
7 min. --- The unit will automatically operate in 7 minutes even if the room temperature is not reached.
(Protection of raising the humidity)
30 sec. --- The compressor is switched ON at once, it is to be operated for 30 seconds.
(Protection of compressor)
7.2. Soft Dry Mode Operation
When selecting the Soft Dry (DRY) Mode Operation, the operation will be cooling until the Room Temperature reaches the Set
Temp. on the remote control, and then Soft Dry will activate.
(During Soft Dry operation, the fan of the indoor unit will operate at Low fan speed and stop at 4-second intervals, and operation
will be switched on and off for up to 10 minutes on and 6 minutes off.)
18
CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

Sleep Mode operates to match your sleeping condition.
1.
At Cooling or Soft Dry operation
When you set the Sleep Mode (SLEEP), the following
movement will start to avoid overcooling.
• The fan speed is automatically set to low.
• The setting temperature will be rise by 1°C at the
start of operation and by 1°C one hour later.
• The Automatic Restarting Control is changed from 7
minutes to 5 minutes.
• The operation will stop after 5 hours.
2.
At Heating operation
When you set the Sleep Mode (SLEEP), the following
movement will start to avoid overheating.
• The fan speed is automatically set to low.
• The setting temperature will dropped by 2°C at the
start of operation and by 3°C one hour later.
• The operation will stop after 5 hours.
(1) Room temperature can be set in 1°C steps in the range of
16 to 30°C. Relationship between the remote control
temperature adjustment knob and operation is shown in
the diagram below.
(2) Taking the difference between the room temperature
distribution and intake air temperature, heating ON
temperature is set to 3°C higher than the remote control
setting.
7.3. Detail of Sleep Mode
7.4. Heating Mode Operation
When selecting the Heating (HEAT) Mode Operation, the unit will operate according to the setting by the Remote Control and
the operation is as the following.
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CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5

7.5. Deice control
1.
Manual operation
When the airflow direction adjustment button of the remote
control is pressed, the louver moves up/down in the
movable range shown in the diagram at right, and can be
stopped at the required position.
Only the up/down louvers are adjustable from the remote
control.
2.
Automatic airflow direction
a.For cooling and soft dry
The up/down louver swings within the movable range.
b.For heating
As shown in the diagram at left, the blow out angle
changes according to the blow out temperature.
* Angle of the left/right louver is manually adjusted.
When AUTO (automatic operation) is set with the “operation
mode selector”on the remote control, the indoor fan runs at
Low speed for 20sec., the air conditioner unit senses the room
temperature then automatically selects the operation mode and
temperature setting.
1.Relationship between room temperature at start and
operation mode:
*Operation lamp flashes while fan is running for the first
20sec., then lights.
*At start of operation, if the room temperature is 16°Cor
lower, heating operation (hot start) starts immediately.
*Once the operation mode is determined by automatic
operation, that operation mode does not change unless
the air conditioner is stopped once and restarted or by
changing to a different mode using the operation mode
select button.
2.The 3 temperature settings listed below can be selected for
*High : +2 degrees up
*Standard :+0
*Low : -2 degrees down
• Deicing operation is controlled by sensing the indoor piping temperature and timer.
• Deicing starts when 60 minutes after start of heating or deice ends and if the indoor piping temperature is 46°(°C) or lower.
• Deicing ends by function of the pressure switch or after 9 minutes of deice operation.
7.6. Airflow direction control
7.7. Automatic operation
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CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5