Panasonic CU-A12CTP5, CS-A18CTP, CU-A18CTP5, CS-A24CTP, CU-A24CTP5 Service Manual

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Order No. MAC0301002C8

Room Air Conditioner

CS-A12CTP CU-A12CTP5 CS-A18CTP CU-A18CTP5 CS-A24CTP CU-A24CTP5

CONTENTS

Page Page

1 Functions 2

2 Product Specifications

3 Dimensions

4 Refrigeration Cycle Diagram

5 Block Diagram

6 Wiring Diagram

7 Operation Details

8 Operating Instructions

9 Installation Instructions

10 Servicing Information

11 Troubleshooting Guide 51

12 Technical Data

13 Exploded View

14 Replacement Parts List

15 Exploded View

16 Replacement Parts List

17 Exploded View

18 Replacement Parts List

19 Electronic Circuit Diagram

AUT

HEA

COOL

SPEED

OFF

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

1 Functions

Remote Control

OFF / ON I

OFF/ON

FAN SPEED

TEMP

Self illuminating

MODE SLEEP

TIMER

Operation OFF / ON Room Temperature Setting

AIR SWING

RESET

TEMP.

button

MODE

FAN SPEED

AIR SWING

Operation Mode Selection

•

AUTO HEAT COOL DRY

Automatic Operation Mode Heating Operation Mode Cooling Operation Mode Soft Dry Operation Mode

Indoor Fan Speed Selection

• Low Fan Speed

• Medium Fan Speed

• High Fan Speed

•

AUTO

Airflow Direction Control

•

AUTO

•

MANUAL

Automatic Fan Speed

Automatic Airflow Direction Control Airflow Direction Manual Control

TIMER

SLEEP

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.

12-hour Timer Setting

•

SELECT

To select delay OFF Timer, ON Timer, OFF/ON Timer and ON/OFF Timer

•

SET/CANCEL

To set hours setting To set hours setting

To start delay OFF and ON timer, cancellation

Sleep Mode Operation OFF / ON

Indoor Unit

AUTO

OFF / ON

Automatic Operation Button

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Indoor Fan Speed Control

• 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.

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.

Operation Mode

• Heating, Cooling, Soft Dry and Automatic Mode.

Random Auto Restart Control

• Operation is restarted randomly after power failure at previous setting mode.

• 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.

Airflow Direction Control

• Automatic air swing and manual adjusted by remote control for vertical airflow.

• Manually adjusted by hand for horizontal airflow.

Time Delay Safety Control

•

Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control

• Cooling Operation only.

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-Freezing Control

• Anti-Freezing control for indoor heat exchanger. (Cooling and Soft Dry)

Sleep Mode Auto Control

• Indoor Fan operates refer to Indoor Fan Speed.

• Operation stops after 8 hours.

Anti Cold Draft Control

• The indoor fan operates at SSLo when the indoor heat exchanger temperature is low. (During Heating mode thermal off)

Anti-Dew Formation Control

• Anti-Dew Formation Control for indoor unit discharge area.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Outdoor Unit

CU-A12CTP5

Compressor Reverse Rotation Protection Control

• To protect compressor from reverse rotation when there is a instantaneous power failure.

Overload Protector

• OLP to protect the compressor for A12CT only. Inner protector for A18CT & A24CT only.

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.

CU-A18CTP5 CU-A24CTP5

Deice Control

• To prevent frosting at outdoor heat exchanger. (Only for Heating Operation)

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 (A12CT).

• Compressor stop when indoor heat exchanger temperature reaches 65°C (A12CT), 68°C (A18CT & A24CT). (Heating Operation Only)

Outdoor Fan Operation Control

A18 / 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.

A12CT

• 6-pole induction motor (1 speed).

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).

4-Way Valve Control

• When the unit is switched to “OFF” during Heating Operation, 4-way valve stays at Heating position for 5 minutes.

2 Product Specifications

Unit CS-A12CTP CU-A12CTP5

Power Source Phase

Cycle

Cooling Capacity kW

Btu/h

kcal/h

Heating Capacity kW

Btu/h

kcal/h

Moisture Removal l/h

Pint/h

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Single

220 - 230

3.52 - 3.52

12,000 - 12,000

3,030 - 3,030

4.00 - 4.00

13,600 - 13,600

3,440 - 3,440

2.0

4.2

Airflow Method OUTLET

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 7.5 (260) - 7.5 (260)

Indoor Air (Me) m3/min (cfm) Cooling: 8.9 (310) - 8.9 (310)

Indoor Air (Hi) m3/min (cfm) Cooling: 9.7 (340) - 9.7 (340)

Noise Level dB (A) Cooling: High 39 - 39; Low 33 - 33

Power Noise Level dB (A) Cooling: High 52 - 52

Electrical Data Input Power W Cooling: 1,090 - 1,160

Running Current A Cooling: 5.1 - 5.2

EER W/W 3.23 - 3.03 COP W/W 3.70 - 3.51 Starting Current A 16.9

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 21 - 9/32 (540) 21 - 9/32 (540)

Net Weight lb (kg) 40 (18) 82 (37) Compressor Type — Rotary (1 cylinder)

Air Circulation Type SIROCCO Propeller Fan

Inner diameter mm 20 — Length m 0.6 —

Width inch (mm) 40 - 1/2 (1,028) 30 - 23/32 (780) Depth inch (mm) 7 - 7/8 (200) 11 - 13/32 (289)

Motor Type — Induction (2-poles) Rated Output kW — 0.93

Material ABS STYLAC 181 PP

Motor Type Induction (4-poles) Induction (6-poles)

Input W 69.8 - 79.0 65 - 73 Rated Output W 29 33

Fan Speed Low rpm Cooling: 640 - 640

Medium rpm Cooling: 760 - 760

High rpm Cooling: 830 - 830

inch inch

m 1.8

Heating: 7.5 (260) - 7.5 (260)

Heating: 8.9 (310) - 8.9 (310)

Heating: 9.7 (340) - 9.7 (340)

Heating: High 39 - 39; Low 33 - 33

SIDE VIEW TOP VIEW

32.5 (1,150) - 33.0 (1,160)

Cooling: High 48 - 49 Heating: High 48 - 49

Heating: High 52 - 52

Heating: 1,080 - 1,140

Heating: 5.0 - 5.1

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

3 (1.0 mm

Heating: 640 - 640

Heating: 760 - 760

Heating: 830 - 830

)

Cooling: High 62 - 63 Heating: High 64 - 65

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

rolling piston type

—

— —

—

835 - 845

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A12CTP CU-A12CTP5

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 16 Size (W × H × L) mm 857 × 252 × 25.4 720 × 504 × 36.38

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GSI (410) Refrigerant (R-22) g (oz.) — 920 (32.5) Thermostat Electronic Control — Protection Device — Overload Protector Capillary Tube Length mm — Cooling: 630, Heating: 455

Flow Rate l/min — Cooling: 6.5, Heating: 13.6 Inner Diameter mm — Cooling: 1.2, Heating: 1.5

Air Filter Material

Style

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 30 µF, 370VAC Fan Motor Capacitor µF, VAC 1.5 µF, 440VAC 2.0 µF, 450VAC

P.P.

Honeycomb

—

•

Specifications are subject to change without notice for further improvement.

Unit CS-A18CTP CU-A18CTP5

Power Source Phase

Cycle

Cooling Capacity kW

Btu/h

kcal/h

Heating Capacity kW

Btu/h

kcal/h

Moisture Removal l/h

Pint/h

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Single

220 - 230

5.30 - 5.30

18,100 - 18,100

4,560 - 4,560

6.00 - 6.00

20,500 - 20,500

5,160 - 5,160

2.9

6.1

Airflow Method OUTLET

SIDE VIEW TOP VIEW

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 8.5 (300) - 8.5 (300)

25.1 (890) - 26.7 (940)

Heating: 9.1 (320) - 9.1 (320)

Indoor Air (Me) m3/min (cfm) Cooling: 9.5 (340) - 9.5 (340)

—

Heating: 9.7 (340) - 9.7 (340)

Indoor Air (Hi) m3/min (cfm) Cooling: 10.2 (360) - 10.2 (360)

38.3 (1,350) - 40 (1,410)

Heating: 10.4 (370) - 10.4 (370)

Noise Level dB (A) Cooling: High 42 - 42; Low 37 - 37

Heating: High 42 - 42; Low 37 - 37

Power Noise Level dB (A) Cooling: High 55 - 55

Heating: High 55 - 55

Cooling: High 54 - 55 Heating: High 55 - 56

Cooling: High 67 - 68 Heating: High 68 - 69

Electrical Data Input Power W Cooling: 1,890 - 2,020

Heating: 1,890 - 2,020

Running Current A Cooling: 8.8 - 9.0

Heating: 8.8 - 9.0 EER W/W 2.80 - 2.62 COP W/W 3.17 - 2.97 Starting Current A 44

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 20 — Length m 0.6 —

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

m 1.8

3 (1.5 mm

G ; 3-way valve 1/2”

L ; 3-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

)

— —

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) 132 (60) Compressor Type — Rotary (1 cylinder)

rolling piston type Motor Type — Induction (2-poles) Rated Output kW — 1.7

Air Circulation Type SIROCCO Propeller Fan

Material ABS STYLAC 181 AES + PC + GF15%

Motor Type Induction (4-poles) Induction (4-poles)

Input W 69.8 - 79.0 105 - 130 Rated Output W 29 67

Fan Speed Low rpm Cooling: 770 - 770

650 - 690

Heating: 810 - 810

Medium rpm Cooling: 870 - 870

—

Heating: 870 - 870

High rpm Cooling: 930 - 930

990 - 1,030

Heating: 930 - 930

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A18CTP CU-A18CTP5

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 FPI 20 16 Size (W × H × L) mm 857 × 252 × 25.4

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS

Refrigerant (R-22) kg (oz.) — 1.55 (54.7) Thermostat Electronic Control Mecha. Control Protection Device — Inner Protector Capillary Tube Length mm — 680

Flow Rate l/min — 11.5 Inner Diameter mm — 1.5

Air Filter Material

Style

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 50 µF, 370VAC Fan Motor Capacitor µF, VAC 1.5 µF, 440VAC 3.0 µF, 450VAC

857 × 210 × 12.7

P.P.

Honeycomb

769.2

732.9

M60 (700)

2 × 26

× 660.4 × 44

—

•

Specifications are subject to change without notice for further improvement.

Unit CS-A24CTP CU-A24CTP5

Power Source Phase

Cycle

Cooling Capacity kW

Btu/h

kcal/h

Heating Capacity kW

Btu/h

kcal/h

Moisture Removal l/h

Pint/h

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Single

220 - 230

6.40 - 6.40

21,800 - 21,800

5,500 - 5,500

7.50 - 7.50

25,600 - 25,600

6,450 - 6,450

3.5

7.4

Airflow Method OUTLET

SIDE VIEW TOP VIEW

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) Cooling: 10.5 (370) - 10.5 (370)

25.6 (910) - 27.4 (970)

Heating: 11.0 (390) - 11.0 (390)

Indoor Air (Me) m3/min (cfm) Cooling: 11.8 (420) - 11.8 (420)

—

Heating: 11.8 (420) - 11.8 (420)

Indoor Air (Hi) m3/min (cfm) Cooling: 12.9 (460) - 12.9 (460)

46.0 (1,620) - 47.2 (1,670)

Heating: 12.9 (460) - 12.9 (460)

Noise Level dB (A) Cooling: High 47 - 47; Low 42 - 42

Heating: High 47 - 47; Low 42 - 42

Power Noise Level dB (A) Cooling: High 60 - 60

Heating: High 60 - 60

Cooling: High 59 - 60 Heating: High 60 - 61

Cooling: High 72 - 73 Heating: High 73 - 74

Electrical Data Input Power W Cooling: 2,600 - 2,740

Heating: 2,720 - 2,860

Running Current A Cooling: 12.7 - 13.0

Heating: 13.3 - 13.6 EER W/W 2.46 - 2.34 COP W/W 2.76 - 2.62 Starting Current A 66

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 20 — Length m 0.6 —

inch inch

G ; Half Union 5/8”

L ; Half Union 1/4” G (gas side) ; 5/8”

L (liquid side) ; 1/4”

m 1.8

3 (2.5 mm

G ; 3-way valve 5/8”

L ; 3-way valve 1/4”

G (gas side) ; 5/8”

L (liquid side) ; 1/4”

)

— —

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) 139 (63) 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 94.2 - 104.1 190.0 - 171.3 Rated Output W 51 108

Fan Speed Low rpm Cooling: 900 - 900

635 - 680

Heating: 940 - 940

Medium rpm Cooling: 1,010 - 1,010

—

Heating: 1,010 - 1,010

High rpm Cooling: 1,100 - 1,100

1,140 - 1,170

Heating: 1,100 - 1,100

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Unit CS-A24CTP CU-A24CTP5

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 FPI 20 16 Size (W × H × L) mm 857 × 252 × 25.4

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — SUNISO 4GDID or ATMOS

Refrigerant (R-22) kg (oz.) — 2.23 (78.7) Thermostat Electronic Control Mecha. Control Protection Device — Inner Protector Capillary Tube Length mm — 690

Flow Rate l/min — 20.0 Inner Diameter mm — 1.9

Air Filter Material

Style

Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 50 µF, 370VAC Fan Motor Capacitor µF, VAC 3.0 µF, 440VAC 3.0 µF, 450VAC

857 × 210 × 12.7

P.P.

Honeycomb

2 × 26

769.2

× 660.4 × 44

732.9

M60 (1,130)

—

•

Specifications are subject to change without notice for further improvement.

3 Dimensions

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

4 Refrigeration Cycle Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

5 Block Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

6 Wiring Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

7 Operation Details

7.1. Cooling Mode Operation

Cooling in operation according to Remote Control setting.

Time Delay Safety Control (3 minutes)

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.

•

7 minutes Time Save Control

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.

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

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.

Anti-Dew Formation Control

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.

•

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Compressor Protection Control

After the compressor starts for 50 seconds but the outdoor fan motor is still OFF, the compressor will stop and restart

•

automatically. (Time Delay Safety Control is valid).

If the above phenomenon is repeated for 3 times, the compressor will stop totally.

•

The above phenomenon is reset when there is a change to heating mode or stopped by Remote Control Switch.

•

Automatic Fan Speed Mode

When Automatic Fan Speed is selected at Remote Control during cooling operation.

Fan speed rotates in the range of Hi to Me.

•

Cooling Operation Time Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

7.2. 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 Lo- speed.

•

The operation will be switched on and off for up to 10 minutes “ON” and 6 minutes “OFF”. Once Soft Dry operation is turned

•

off, it stops for 6 minutes.

Time Delay Safety Control

Once the compressor stops, it will not start for 3 minutes during Cooling operation.

•

Anti-Freezing Control

Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor

•

stops.)

Compressor Reverse Rotation Protection Control

Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waiting

•

is valid during compressor stops.)

Compressor Protection Control

Same as Compressor Protection Control for Cooling Mode Operation.

•

Anti-Dew Formation Control

Same as Anti-Dew Formation Control for Cooling Mode operation.

•

Automatic Fan Speed Mode

When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.

Fan speed rotates at Lo- speed.

•

Soft Dry Operation Time Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

7.3. Heating Mode Operation

Heating in operation according to Remote Control setting.

Time Delay Safety Control

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 heating operation, the compressor stops and it will not start for 4 minutes.

•

30 minutes Time Save Control

The compressor will start automatically if it has stopped for 30 minutes even if the room temperature is between the compressor

•

ON temperature and OFF temperature.

Overload Protection Control

(a) Outdoor Fan Control

A12CT

•

If the temperature of the indoor heat exchanger rises to 51°C, Outdoor Fan stops.

The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49°C.

A18CT, A24CT

•

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 T

or 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.

(b) Compressor high pressure protection

If the indoor heat exchanger becomes 65°C (A12CTP); 68°C (A18CTP & A24CTP) or more, the compressor will stop and

•

restart automatically.

(Time Delay Safety Control - 4 minutes waiting).

Compressor Reverse Rotation Protection Control

If the compressor is operating continuously for 5 minutes or longer and temperature difference between intake air and indoor

•

heat exchanger is 5°C or less for 2 minutes, compressor will stop and restart automatically.

(Time Delay Safety Control is valid).

▲

T = Indoor heat exchanger temperature - intake air temperature.

This is to protect reverse rotation of the compressor when there is a instantaneous power failure.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

4-way Valve Control

4-way valve always ON during Heating operation. (Except Deicing operation)

•

When the unit is switched to “OFF” during Heating operation, 4-way valve stay at Heating position for 5 minutes.

•

Outdoor Fan Motor Control

When compressor stops (reaches room temperature), outdoor fan will operate for 30 seconds.

•

(30 seconds Forced Operation).

Indoor Fan Motor Control

When compressor stops (reaches room temperature), indoor fan will stop for 1 minutes, operate for 3 minutes, if still not yet

•

reaches the room temperature, indoor fan Lo- for 40 sec. after that operate at SLo speed.

Hot Start Control

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 rises to 42°C or over 4 minutes.

Anti Cold Draft Control

This operation is to prevent the Cold Draft during Heating mode operation.

•

The operation will start when compressor OFF (Thermo OFF) during Heating operation.

•

For the first 30 sec. from compressor OFF (Thermo OFF), Indoor fan speed will operate accordingly to the Indoor heat

•

exchanger temperature as shown below:

After 30 sec. from compressor OFF (thermo OFF), Indoor fan will run at SSLo speed only.

•

Anti Cold Draft Control will stop when:

•

Intake temperature < set temperature. (Time Delay Safety Control 4 minutes waiting is valid)

−

After 30 minutes time saved control.

−

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Automatic Fan Speed Mode

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.

•

If use Manua l Fan Speed,

•

Heating Operating Time Diagram

at above diagram will operate with setting Fan Speed.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Deicing Control

1) A12CT

Deice starts to prevent frosting at outdoor heat exchanger.

Normal Deicing

•

Deice operations detection commences after 30 minutes of Heating operation starts or 60 minutes after previous deice operation. If the TRS (Thermal Reed Switch) senses the outdoor piping temperature drops to -3°C (TRS CLOSE) or less for 50 sec. continuously during compressor is in operation, deice will start.

(There is no detection during Outdoor Fan stops.)

Overload Deicing

•

During heating operation, if the outdoor Fan OFF duration (due to overload control) is accumulated up to 60 minutes and after compressor starts for 1 minutes, deicing starts.

Deicing ends when

•

1. 12 minutes after deicing operation starts;

2. TRS senses the outdoor piping temperature rises to 4°C (TRS OPEN).

3. Deicing will not end immediately as time delay (Td) is valid as shown below.

Once deicing operation starts, it will not end for 60 seconds.

•

After deicing operation, compressor stops for 30 seconds and 4-way valve stays at cooling position for 10 seconds.

•

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Normal Deicing Time Diagram

Overload Deicing Time Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

2) A18CT, A24CT

Deice starts to prevent frosting at outdoor heat exchanger.

Normal Deicing

•

Deice operation detection commences in Heating operation starts or 60 minutes after previous deice operation. If the outdoor piping temperature drops to -4°C for 50 sec. continuously during compressor is in operation, deice will start.

(There is no detection during Outdoor Fan stops.)

Overload Deicing

•

During heating operation, if the outdoor Fan OFF duration (due to overload control) is accumulated up to 60 minutes and after compressor starts for 1 minutes, deicing starts.

Deicing ends when

•

(a) 12 minutes after deicing operation starts;

(b) The outdoor piping temperature rises to about 12°C.

After deicing operation, compressor stops for 30 seconds and 4-way valve stays at cooling position for 10 seconds.

•

a) Normal Deicing Time Diagram

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

(b) Overload Deicing Time Diagram

7.4. Automatic Mode Operation

1. When the Automatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 25 seconds to sense intake air temperature and determine the 1st operation mode. If indoor intake air temperature is less than 16°C, Heating mode will immediate operate.

2. Operation mode will be determine again after 1 hour of operation, if the room temperature reaches to set temperature and compressor off time is over 7 minutes 30 seconds continuously.

The present operation mode will be continued, if the room temperature does not reach to set temperature (Compressor keeps running) eventhough after 1 hour from automatic operation mode started.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

Present Judgement Next Mode

Mode Cooling Soft Dry Heating

O O

Cooling 23°C Cooling (Judgement: Not Applicable (Judgement:

Heating 23°C & Above) Below 23°C)

O O

Soft Dry 23°C Soft Dry Not Applicable (Judgement: (Judgement:

Heating 23°C & Above) Below 23°C)

O O

Heating Cooling (Judgement: Not Applicable (Judgement:

23°C Heating 23°C & Above) Below 23°C)

Automatic Set Temperature Refer 3. as below.

3. Automatic Set Temperature

For each operation, set temperature will automatically set as shown below.

However it can be selected 2°C higher or 2°C lower from standard set temperature by pressing the “Room Temperature Setting button”.

Operation Hi (Standard) Lo

(+2°C) (±0°C) (-2°C)

Cooling 27°C 25°C 23°C

Soft Dry 24°C 22°C 20°C

Heating 23°C 21°C 19°C

The mode judging temperature and standard setting temperature can be increased by 2°C, by open the circuit of JX6 at

•

indoor electronic controller.

7.5. Sleep Mode Auto Operation

Cooling or Soft Dry Operation

Purpose is to obtain a comfortable room temperature while sleeping. When you press the SLEEP Mode, the following movement will start to avoid overcooling.

Sleep shift operation starts, when the room temperature

•

reaches the setting temperature or after 1 hour of operation.

The setting temperature will be risen by

•

operation and by

The airflow volume will automatically change to Lo- fan

•

0.5

°C one hour later .

0.5

°C at the start of

speed.

Sleep Mode operation time is8hours, the operation will be

•

stop after8hour.

When used together with the Timer, the Timer has priority.

•

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Heating Operation

Purpose is to obtain a comfortable room temperature while sleeping. When you press the SLEEP Mode, the following movement will start to avoid overheating.

Sleep shift operation starts, when the room temperature

•

reaches the setting temperature or after 1 hour of operation.

The setting temperature will be decrease by2°C at the start

•

of operation and by3°C one hour later.

The fan speed refer to Indoor Fan Motor Control.

•

Sleep Mode operation time is8hours, the operation will be

•

stop after8hour.

When used together with the Timer, the Timer has priority.

•

7.6. Random Auto Restart Control

If there is a power failure during air conditioner operation, operation will be automatically restarted after 3 to 4 minutes when the

•

power is resumed. It will start with previous operation mode and airflow direction.

Restart time is decided randomly using 4 parameter:

•

Intake air temperature, setting temperature, fan speed and Air Swing Blade position.

Random Auto Restart Control is not available when Timer is set.

•

This control can be omitted by open the circuit of JX5. (Refer Circuit Diagram)

•

7.7. Delay ON Timer Control

When the Delayed ON Timer is set by using the remote control, the unit will start operate slightly before the set time, so that

•

the room will reach nearly to the set temperature by the desired time.

For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time.

•

For Heating mode, the operation will start 30 minutes before the set time.

•

For Automatic mode, the indoor fan will operate at SLo speed for 25 seconds, 30 minutes before the set time to detect the

•

intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.

7.8. Remote Control Signal Receiving Sound

Long beep sound will be heard when:-

•

Stopping the Air Conditioner using ON/OFF switch.

−

Short beep sound will be heard for others.

•

To switch off the beep sound:-

•

Press the “Automatic Operation Button” continuously for 10 seconds or more (“beep”“beep” will be heard at the 10th second).

Repeat the above if you want to switch ON the beep sound.

However, if the “Automatic Operation Button” has been pressed the Automatic operation will be activated. If you do not require this operation, you may change it by using the remote control.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

7.9. Indoor Fan Speed Control

Auto Fan Speed Control

When set to Auto Fan Speed, the fan speed is shifted automatically between Stop to SHi depend on each operation as shown below.

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.

7.10. Airflow direction control

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.

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.

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

7.11. Soft starter (Applicable only for Australia market)

A. Purpose

To reduce starting current lower than 45A.

B. Basic Operation (A18CTP, A24CTP)

1. When indoor relay is turn ON, starting capacitor will be turn ON through RY-C for ~ 1 second. After that reactor will be turn

OFF through RY-L and in the same time RY-C will turn OFF causes starting capacitor to be OFF.

2. When the unit operation ON by remote controller or thermostat OFF→ON the starter kit will be functioned.

3. When the unit operation OFF→ON by the inner protector, the starter kit will be not function, mean the unit will be ON as

a normal operation.

8 Operating Instructions

AUT

HEA COOL

SPEED

CS-A12CTP CU-A12CTP5 / CS-A18CTP CU-A18CTP5 / CS-A24CTP CU- A24CTP5

SAFETY PRECAUTIONS

Before operating, please read the following “Safety Precautions” carefully.

● To prevent personal injury, injury to others and property damage, the following instructions must be followed.

● Incorrect operation due to failure to follow instructions will cause harm or damage, the seriousness of which is classified as follow:

This sign warns of death or serious injury.

This sign warns of damage to property.

● The instructions to be followed are classified by the following symbols:

This symbol (with a white background) denotes an

These symbols (with a black background) denote

Warning

Caution

action that is PROHIBITED.

actions that are COMPULSORY.

■ Installation Precautions

Warning

● Do not install, remove and reinstall the unit by yourself.

Improper installation will cause leakage, electric shock or fire. Please engage an authorized dealer or specialist for the installation work.

Caution

● This room air conditioner must be earthed.

Improper grounding could cause electric shock.

● Ensure that the drainage piping is connected properly.

Otherwise, water will leak out.

● Do not install the unit in a potentially explosive atmosphere.

Gas leak near the unit could cause fire.

■ Operation Precautions

This sign warns of death or serious injury.

● Do not share outlet.

● Do not insert plug to operate the unit. Do not

● Do not operate with wet hands.

● Do not damage or modify the power cord.

● Do not insert finger or other objects into the

●

● Plug in properly.

● Use specified power cord.

● If abnormal condition (burnt smell, etc.)

● Do not pull the cord to disconnect the plug.

● Do not wash the unit with water.

● Do not use for other purposes such as

● Do not use any combustible equipment at

●

● Switch off the power supply before cleaning.

● Ventilate the room regularly.

● Pay attention as to whether the installation

F F

● Switch off the power supply if the unit is not

Warning

pull out plug to stop the unit.

indoor or outdoor units. Do not expose directly to cold air for a long period.

occurs, switch off and unplug the power supply.

Caution

This sign warns of injury.

preservation.

airflow direction. Do not sit or place anything on the indoor or outdoor unit.

rack is damaged after long period of usage.

used for a long period.

NAME OF EACH PART

■ Indoor Unit

1 Air Outlet Vent

2 Power Supply Cord

3 Air Intake Vent

4 Air Filters (behind the panel)

5 Horizontal Airflow Direction Louver

(manually adjusted)

6 Vertical Airflow Direction Louver

● Indoor Unit Controls

1 Operation Indication Lamps

2 Signal Receptor

AUTO OFF/ON POWER TIMER SLEEP AIR SWING

■ Accessories

2 3 4 5

1 Auto Operation Button

2 Power Mode Indicator – GREEN

3 Timer Mode Indicator – ORANGE

4 Sleep Mode Indicator – ORANGE

5 Air Swing Mode Indicator – ORANGE

● Remote Control

A U T

O H E

A T

O O

D R

O F F

F AN

T I

E C

S E

/ C

S E

● Remote Control Indication Sticker

■ Outdoor Unit

CU-V18CTP5, CU-V24CTP5 CU-A18CTP5, CU-A24CTP5

1 Air Intake Vents 2 Piping 3 Connecting Cable

CU-V12CTP5 CU-A12CTP5

4 Air Outlet Vents 5 Drain Hose

● Remote Control Holder

● Two RO3 (AAA) dry-cell batteries or equivalent

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

NAME OF EACH PART

■ Remote Control

● Remote Control Signal.

• Make sure it is not obstructed.

• Maximum distance : 10 m.

• Signal received sound.

One short beep or one long beep.

● Notes for Remote Control.

• Do not throw or drop.

• Do not get it wet.

• Certain type of fluorescent lamps may affect

signal reception. Consult your dealer.

● Do not place the remote control in a location exposed to direct sunlight, or next to a heating unit, or other heat source.

1 Signal Transmitter

2 Operation Display

Cooling Model

Heat Pump Model

3 Room Temperature Setting Button

(Illuminating button)

4 Operation Mode Selection Button

5 Sleep Mode Operation Button

(Illuminating button)

6 Timer Setting Button

7 Timer Selection Button

8 OFF/ON Button

(Illuminating button)

9 Fan Speed Selection Button

0 Auto Airflow Direction Button

! Timer Set/Cancel Button

@ Manual Airflow Direction Selection Button

# Reset Point

(Press with fine-tipped object to clear the memory)

● How to Insert the Batteries

Gently press the place marked OPEN and slide the cover towards you.

Insert the batteries

– Be sure the direction is correct.

● About the batteries

• Can be used for approximately one year.

●

Observe the following when replacing the batteries

• Replace with new batteries of the same type.

• Do not use rechargeable batteries (Ni-Cd).

• Remove the batteries if the unit is not going to be

used for a long period.

● Proper way to operate the remote control in the case of ceiling/wall mounting.

• Operate the remote control in parallel with the floor.

(See the figure below)

• The signal changes as shown in the figure below.

(Fig. 1) Horizontal Level

It means that the receiving conditions are bad and the signal can not be controlled properly.

(Fig. 2)

O.K.

OUT

PREPARATION BEFORE OPERATION

■ Indoor Unit

Connect the power supply cord to an independent power supply.

HOW TO OPERATE

■ To start the operation

• Press 1.

• POWER indicator (green) on the indoor unit will light up.

• To stop, press once more.

■ Setting Mode

• Press 2 to select:-

Cooling Model

AUTO – Automatic Operation COOL – Cooling Operation DRY – Soft Dry Operation FAN – Air Circulation Operation

Heat Pump Model

AUTO – Automatic Operation HEAT – Heating Operation COOL – Cooling Operation DRY – Soft Dry Operation

■ Setting Temperature

• Press 3 to increase or decrease the temperature.

• The temperature can be set between 16°C ~ 30°C

• Recommended temperature:

Cooling Model

COOL –> 26°C ~ 28°C DRY –> 1°C ~ 2°C

lower than the room temperature

• During AUTO Operation, press 3 to select:-

• Operation with 2°C higher than the standard

temperature.

• Operation with the standard temperature.

• Operation with 2°C lower than the standard

temperature.

● Standard Temperature

Indoor

temperature

23°C

• Once the Automatic Operation is selected, the indoor temperature sensor operates automatically to select the desired operation mode with Cooling or Soft Dry.

• After the operation mode has been selected, the mode does not change.

Heat Pump Model

Indoor

temperature

23°C

20°C

• At the beginning of the automatic operation, Heating, Cooling or Soft Dry is automatically selected according to the indoor temperature.

• After the operation mode has been selected, the mode does not change.

COOL –> 26°C ~ 28°C DRY –> 1°C ~ 2°C

HEAT –>20°C ~ 24°C

Cooling Model

Operation

Cooling

Soft Dry

Operation

Cooling

Soft Dry

Heating

Heat Pump Model

lower than the room temperature

Standard

temperature

25°C

22°C

Standard

temperature

25°C

22°C

21°C

● Operation Details

COOL – Cooling Operation

• To set the room temperature at your preference cooling comfort.

AUTO – Automatic Operation

• Sense indoor temperature to select the optimum mode.

• Temperature is not displayed on the remote control during AUTO operation.

DRY – Soft Dry Operation

• A very gentle Cooling Operation, prior to dehumidification. It does not lower the room temperature.

• During Soft Dry operation, the indoor fan operates at Low Fan Speed.

HEAT – Heating Operation

(for Heat Pump Model only)

• Heat is obtained from outdoor air to warm up the room. When the outdoor ambient air temperature falls, the heating capacity of the unit might be reduced.

• Defrosting Operation Depend on the outdoor temperature, the operation occasionally stops to melt the frost on the outdoor unit.

FAN – Air Circulation Operation

(for Cooling Model only)

• Heated air rises and collects at the top of the room. The air circulation circulates the heated air downward, thus increasing heating effectiveness. When the unit is installed floor mounted, you should set the temperature higher than that of ceiling mounted.

At ceiling mounted At floor mounted

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

■ Setting the Fan Speed

• Press 4 to select:-

FAN – Low Fan Speed FAN – Medium Fan Speed FAN – High Fan Speed AUTO FAN – Automatic Fan Speed

The speed of the indoor fan is adjusted automatically according to the operation. The indoor fan stops occasionally during cooling operation.

■ Vertical Airflow Direction

● Manual Operation

• Press and hold the Manual Airflow Direction

Selection Button 5 , then release the button at the desired airflow direction.

• Cooling / Soft Dry/

Heating (for Heat-Pump Model only)

The airflow direction can be adjusted as desired by using the remote control. This is effective when you want to cool yourself directly, such as when coming out of the bath. The louver can be adjusted within a range between the horizontal and 25 degrees downward at Cooling and Soft Dry Operation, and between the horizontal and 45 degrees downward at Heating Operation. (for Heat-Pump Model only)

Horizontal

Downward

● Automatic Operation

• Press the Auto Airflow Direction Button 6.

• Cooling / Soft Dry

The louver will automatically swing up and down to create the feeling of a refreshing breeze.

• Heating (for Heat-Pump Model only) When the discharge air temperature is low such as at starts of heating operation, the air blows at horizontal level. As the temperature rises, the hot air blows in a downwards direction.

■ Setting the Horizontal Airflow Direction

• Adjust it manually

● Use this air conditioner under the following conditions:

Cooling Model

(Unit in °C)

DBT: Dry Bulb Temp WBT: Wet Bulb Temp

Maximum Temperature

Minimum Temperature

Indoor Outdoor

DBT

WBT

DBT

WBT

Heat Pump Model

(Unit in °C)

Outdoor

DBT: Dry Bulb Temp WBT: Wet Bulb Temp

Maximum Temperature-Cooling (Maximum Temperature-Heating)

Minimum Temperature-Cooling (Minimum Temperature-Heating)

● Notes

• If the unit is not going to be used for an extended

period of time, turn off the main power supply. If it is left at the ON position, approximately 2.0 W of electricity will be used even if the indoor unit has been turned off with the remote control.

• If operation is stopped, then restart immediately, the

unit will resume operation only after 3 minutes.

DBT

(30)

(16)

Indoor

WBT

23 (-)

11 (-)

DBT

(24)

(-5)

WBT

(18)

(-6)

SELEC

SETTING THE TIMER

• Press the Timer Selection Button 1.

• Timer indicator on the indoor unit will light up.

• Select one of the following five types of operation.

Each time the button is pressed, the operation mode is shifted in the arrow direction.

Delay OFF Timer Example :

OFF

Delay ON Timer Example :

Delay OFF and Example : ON Timer Operation stops after

OFF

Delay ON and Example : OFF Timer Operation starts after

• Then press the Timer Setting Button 2 or 3 to the

desired number of hours. (Number of hours which can be set : 1 ~ 12)

• Press the Timer Set/Cancel Button 4.

T O

L D R

OFF/ON

TIM

AUTO

ET/C

Operation Stops

OFF

after 1 hour ON Timer.

Operation starts after 6 hours.

1 hour and re-starts after another 5 hours.

10 hours, and then stops after another 8 hours.

CONVENIENCE OPERATION

■ Sleep Mode Operation

To obtain a comfortable room temperature while sleeping:-

• Press 5.

• Sleep mode indicator on the indoor unit will light up.

• To cancel this operation, press once more.

● Sleep Mode Operation Details

• When the room temperature reaches the set temperature, the airflow volume will change to low automatically.

• Sleep Mode Operation time is 8 hours.

• When used together with the timer, the timer has a priority.

Cooling Model

Temperature

T e

t u r e

Sleep Operation button is pressed.

0~1 hour ← 1 hour →

Approx. 0.5°C increase.

Approx.

0.5°C increase.

• Cooling or Soft Dry Operation for sleep shift operation will start to

Sleep shift

avoid overcooling.

operation starts.

after approx. 8 hours of sleep shift

operation, it will stop automatically.

Heat Pump Model

Temperature

T e

t u r e

Sleep Operation button is pressed.

0~1 hour

Approx. 0.5°C increase.

Approx.

0.5°C increase.

Sleep shift operation starts.

Approx. 2°C decrease.

← 1 hour →

after approx. 8 hours of sleep shift operation, it will stop automatically.

• Cooling or Soft Dry Operation for sleep shift operation will start to avoid overcooling.

• Heating operation for sleep shift operation will start to avoid overheating.

Approx. 3°C decrease.

Time

CARE AND MAINTENANCE

■ Cleaning the Indoor Unit and Remote Control

• Wipe gently with a soft, dry cloth.

• Do not use water hotter than 40˚C or polishing fluid

to clean the unit.

■ Cleaning the Air Filter

(Recommendation:- If the unit is operated in a dusty environment, clean the filters every two weeks, continuous use of this dirty filters will reduce cooling or heating efficiency)

Remove dirt using a vacuum cleaner.

Wash back of the air filter with water.

If badly soiled, wash it with soap or a mild household detergent.

Let it dry and reinstall it. Be sure the “FRONT” mark is facing you.

* Damaged air filter.

Consult the nearest authorized dealer. Part No.: CWD001088.

• Do not use benzene, thinner, scouring powder or

Time

clothes soaked in caustic chemical to clean the unit.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

■ Pre-season Inspection

● Clean the air filters, re-insert and operate the air

conditioners.

● Is the discharged air cold / warm?

Operation is normal if 15 minutes after the start of operation, the difference between the air intake and outlet vents temperature is:-

Cooling Model

COOL –> 8°C or above

Heat Pump Model

COOL –> 8°C or above

HEAT –> 14°C or above

● Are the air intake or outlet vents of the indoor or

● Are the remote control batteries weak?

outdoor units obstructed?

If the remote control display appears weak, replace the batteries.

■ When the Air Conditioner is Not Used for an Extended Period of Time

To dry the internal parts of the indoor unit, operate the unit for 2 - 3 hours using:-

Turn off the power supply and unplug.

Remove the remote control batteries.

■ Recommended Inspection

•

After used over several seasons, the unit will become dirty and thus decreases the unit’s performance. Depending on the operation conditions, a dirty unit may produce odour and dust may pollute dehumidification system. Therefore, a seasonal inspection is recommended in addition to regular cleaning. (Consult an authorized dealer).

Cooling Model

FAN operation

Heat Pump Model

COOL operation with 30°C set temperature

HELPFUL INFORMATION

■ Auto Operation

Press the Auto

Operation Button

AUTO OFF/ON

● Automatic Operation

• If the remote control fails to function or has been misplaced, press the Auto Operation button to start the Automatic operation.

• The Automatic operation will be activated immediately once the Auto operation button is pressed. However, temperature cannot be adjusted in this operation.

• The power indicator on the indoor unit will blink until the operation mode is selected automatically.

• To cancel this operation, press once more.

■ Timer Setting

• When power failure occurs, the timer setting will be cancelled. Once power is resumed, reset the timer.

■ Thunder and Lightning

• This air conditioner is equipped with a built-in surge protective device. However, in order to further protect your air conditioner from being damaged by abnormally strong lightning activity, you may switch off the main power supply and unplug from power socket.

■ Auto Restart Control

• If power is resumed after a power failure, the operation will restart automatically after 3 - 4 minutes.

• Operation will be restarted automatically under the previous operation mode and airflow direction when power is resumed as the operation is not stopped by the remote control.

ENERGY SAVING AND OPERATION HINTS

■ Setting the Temperature

• Approximately 10% of electricity can be saved.

• Set the temperature higher or lower than the

desired temperature.

Cooling Model

Cooling Operation : 1°C higher

Heat Pump Model

Cooling Operation : 1°C higher Heating Operation : 2°C lower

■ Air Filters

• Clean the air filters every 2 weeks.

• Dirty filters may reduces cooling or heating

efficiency.

■ Keep All Doors and Windows Closed

• Otherwise, cooling or heating performance will be reduced and electricity cost is wasted.

■ Outdoor Unit

• Do not block the air outlet vents. Otherwise, it will lower the cooling or heating performance.

■ Timer and Sleep Mode

• To prevent wastage of electricity, use sleep mode when sleeping or Timer when going out.

■ Avoid Direct Sunlight

• Keep curtains or drapes closed to avoid direct sunlight during cooling operation.

TROUBLESHOOTING

■ Normal Operation

Is it okay?

• Air conditioner has been restarted, but does not operate for 3 minutes.

• A sound like water flowing can be heard.

• It seems that fog is coming out from the air

conditioner.

• The room has a peculiar odour.

• The outdoor unit emits water or steam.

• During Automatic Airflow Volume setting,

indoor fan stops occasionally.

• (For Heat Pump Model only) Operation stops for about 12 minutes during heating (The power indicator blinks).

• (For Heat Pump Model only) During heating operation, indoor fan may run at on and off conditions.

■ Abnormal Operation

Is it okay?

• The air conditioner does not operate.

• Air conditioner produces loud noise during

operation.

• The air conditioner does not cool or warm effectively.

• Remote control / display doesn’t work

This is the answer

• This is to protect the air conditioner. Wait until the air conditioner begins to operate.

• This is the sound of refrigerant flowing inside the air conditioner.

• Condensation occurs when the airflow from the air conditioner cools the room.

• This may be a damp smell emitted by the wall, carpet, furniture or clothing in the room.

• In COOL/DRY operation, moisture in the air condenses into water on the cool surface of outdoor unit piping that causes dripping.

• This is to remove the smell emitted by the surroundings.

• This is to melt the frost which has accumulated on the outdoor unit (defrosting operating). This will take no longer than about 12 minutes. Water drips from the outdoor unit. Wait until this operation ends. (the power indicator will light up). (Frost will accumulates on the outdoor unit when the outdoor temperature is low and humidity is high.)

• This is to prevent undesired cooling effect during heating operation.

Please check

• Has the circuit breaker been tripped?

• Has the power plug been removed from the wall

outlet?

• Is the timer being used correctly?

• Is the installation work slanted?

• Has the temperature been set incorrectly?

• Are the filters dirty?

• Are the intake or outlet vents of the outdoor unit

obstructed?

• Are all windows and doors closed?

• Batteries empty?

• Batteries correctly inserted (+) and (–)?

■ Call the Dealer Immediately

If the following conditions occur, turn off and unplug the main power supply, and then call the dealer immediately.

• Abnormal noise is heard during operation.

• Water or foreign material gets into the remote

control by mistake.

• Water leak from the indoor unit.

• Switches or buttons do not operate properly.

• The circuit breaker switches off frequently.

• Power supply cord and plug become unusually

warm.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9 Installation Instructions

Required tools for Installation Works

1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter

2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench

3. Electric drill, hole core drill (ø70 mm)

4. Hexagonal wrench (4 mm) 8. Knife 12. Megameter 16. Gauge manifold set

7. Reamer 11. Thermometer 15. Charging cylinder

9.1. Safety Precautions

•

Read the following “SAFET Y PRECAUTIONS” carefully before installation.

•

Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed.

•

The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.

Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.

18 N.m (1.8 kgf.m) 55 N.m (5.5 kgf.m) 65 N.m (6.5 kgf.m)

This indication shows the possibility of causing death or serious injury.

This indication shows the possibility of causing injury or damage to properties only.

The items to be followed are classified by the symbols:

Symbol with background white denotes item that is PROHIBITE D from doing.

•

Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and maintenance as stated in operating instructions. Please remind the customer to keep the operating instructions for future reference.

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.

2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.

4. Install at a strong and firm location which is able to withstand the set´s weight. If the strength is not enough or installation is not properly done, unit will drop and cause injury.

5. For electrical work, please follow the local national wiring standard & regulation and this installation instruction. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.

6. Use the specified cable and connect tightly for indoor-outdoor connection. Please clamp the cable firmly so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection. The outlet cable shall be fastened by the two clamps of the indoor unit.

7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock.

8. When carrying out piping connection, please take care not to let air or other substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.

9. When connecting the piping, do not allow air or any substances other than the specified refrigerant (R410A) to enter the refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and injury. (only for models: CS/CU-V7CK, V9CK, V12CK, W7CK, W9CK, W12CK)

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

10.

• When connecting the piping, do not not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.

• Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.

• It is desirable that the amount of residual oil is less than 40 mg/10 m. (only for models: CS/CU-V7CK, V9CK, V12CK,

W7CK, W9CK, W12CK)

11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.

1. This equipment must be earthed. It may cause electrical shock if grounding is not perfect.

2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire.

3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture.

1. Selection of the installation location and installation. Select a installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

2. Power supply connection to the room air conditioner. Connect the power supply cord of the room air conditioner to the mains using one of the following method. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries, permanent connection of this room air conditioner to the power supply is prohibited.

1. Power supply connection to the socket using a power plug.

Use an approved 15A/16A power plug with earth pin for (C12CT, A12CT, V12CT, W12CT, C18CT, A18CT, V18CT, W18CT) and 20A for (C24CT, A24CT, V24CT, W24CT) for the connection to the socket.

2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for C12CT, A12CT,

V12CT, W12CT, C18CT, A18CT, V18CT, W18CT and 20A for C24CT, A24CT, V24CT, W24CT for the permanent connection. It must be a double pole switch with a minimum 3 mm contact gap.

3. Do not release refrigerant. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite.

4. Installation work. It may need two people to carry out the installation work.

5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

Attached accessories

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Indoor/Outdoor Unit Installation Diagram

SELECT THE BEST LOCATION

INDOOR UNIT

There should not be any heat source or steam near the

•

unit.

There should not be any obstacles blocking the air

•

circulation.

A place where air circulation in the room is good.

•

A place where drainage can be easily done.

•

A place where noise prevention is taken into

•

consideration.

Do not install the unit near the door way.

•

Ensure the spaces indicated by arrows from the wall,

•

ceiling, fence or other obstacles.

OUTDOOR UNIT

If an awning is built over the unit to prevent direct

•

sunlight or rain, be careful that heat radiation from the condenser is not obstructed.

There should not be any animal or plant which could be

•

affected by hot air discharged.

Keep the spaces indicate d by arrows from wall, ceiling,

•

fence or other obstacles.

Do not place any obstacles which may cause a short

•

circuit of the discharged air.

If piping length is over the rated length, addition al

•

refrigerant should be added as shown in the table.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.2. INDOOR UNIT

9.2.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section)

9.2.2. HOW TO FIX INSTALLATION PARTS

Installation on the ceiling

Measure and mark the position for the Suspension bolts and the piping hole.

•

Drill the hole for anchor nut on the ceiling.

•

Drill the Piping hole slightly tilted to the outdoor side with a Ø 70 hole-core drill.

•

Insert the nuts and washers onto the suspension bolts for locking the Suspension bolts on the ceiling.

•

Mount the suspension bolts to the anchor-nuts firmly as shown in the diagram.

•

Installation on the wall

The centre of installation plate should be at more than 710 mm at right and left of the wall.

The distance from installation plate edge to floor should more than 425 mm.

From installation plate left edge to unit’s left side is 76 mm.

From installation plate right edge to unit’s right is 76 mm.

1. Mount the installation plate on the wall with 3 screws or more.

(If mounting the unit on the concrete wall consider using anchor bolts.)

Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge.

•

2. Drill the piping plate hole with ø70 mm hole-core drill.

Drill the piping hole slightly slanted to the outdoor side.

•

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.2.3. TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING

1. Insert the piping sleeve to the hole.

2. Fix the bushing to the sleeve.

3. Cut the sleeve until it extrudes about 15 mm from the wall.

Caution

When the wall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the connecting cable.

4. Finish by sealing the sleeve with putty or caulking compound at the final stage.

9.2.4. INDOOR UNIT INSTALLATION

Indoor unit installation

1. Remove the Front Grille.

Remove 2 screws

•

Pull the upper left and right side of the intake grille

•

toward you, and it will stop at slightly tilted position.

Remove 2 screws

•

Remove 3 screws cap, then remove 3 screws

•

Release 3 hooks as shown in the diagram.

•

Lift up the front grille.

•

2a. For installation on the ceiling.

from the left and right corners.

2b. For installation on the wall.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.2.5. CONNECT THE CABLE TO THE INDOOR UNIT

1. Open the control box at the bottom end of the chassis and connect the cable through the hole.

Connect the wires to the terminals on the control board individually according to the outdoor unit connection.

•

Ensure the color of wires of outdoor unit and the terminal Nos are the same to the indoor’s respectively.

•

Secure the cable onto the control board with the holder (clamper).

•

Insert two tabs on the Side panel into two slots on the chassis, and secure it to the chassis with the screw.

•

9.2.6. PIPING AND DRAINAGE

Piping and Drainage

Cut off the Chassis with a nipper according to the inner surface for the Pipings.

•

Align the center of the pipings and sufficiently tighten the flare nut with fingers.

•

Finally tighten the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench.

•

Wrap the tube joining areas with insulating material so that there are no gaps (if it overlaps, cut the excess material) refer

•

diagram in "Pipe formings, insulating and finishing".

Connect the drain hose (insulated) to the drain outlet.

•

9.3. OUTDOOR UNIT

9.3.1. SELECT THE BEST LOCATION

(Refer to “Select the best location” section)

9.3.2. INSTALL THE OUTDOOR UNIT

At the best location, start installation according to IndoorOutdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).

2. When installing at roof, please consider strong wind. Please fasten the installation stand firmly with bolt or nails.

Model

V12CT 570 105 18.5 320

V18 / 24CT 540 129 15 330

A B C D

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.3.3. CONNECTING THE PIPING

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portion of indoor piping) onto the copper pipe.

(in case of using long piping)

Connect the piping

Align the center of piping and sufficiently tighten the flare

•

nut with fingers

Further tighten the flare nut with torque wrench to the

•

specified torque as stated in the table.

Connecting The Piping To Outdoor Unit

1. Align the center of the pipings and sufficiently tighten

the flare nut with fingers.

2. Finally, tighten the flare nut with torque wrench until the

wrench clicks.

When tightening the flare nut with torque wrench,

•

ensure the direction for tightening follows the arrow on the wrench.

Pipe size Torque Liquid Side 1/4” 18 N.m Gas Side 1/2” 55 N.m Gas Side 5/8” 65 N.m

CUTTING AND FLARING THE PIPING

1. Please cut using pipe cutter and then remove the burrs.

2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder entering the pipe.

3. Please make flare after inserting the flare nut onto the copper pipes.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.3.4. (a) EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION)

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.

1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.

Be sure to connect the end of the charging hose with the push pin to the service port.

•

2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor.

3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to

-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

4. Close the valve at the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes.

Note: BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.

6. Tighten the service port caps of both of the 3-way valves at a torque of 18 N·m with a torque wrench.

7. Remove the caps of both of the 3-way valves. Position both of the valves to “OPEN” using a hexagonal wrench (4 mm).

8. Mount caps onto both of the 3-way valves.

Be sure to check for gas leakage.

•

CAUTION

If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:

•

If the leak stops when the piping connections are tightened further, continue working from step 3.

•

If the leak does not stop when the connections are retightened, repair the location of leak.

•

Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause

•

frostbite.

9.3.5. (b) AIR PURGING OF THE PIPING AND INDOOR UNIT

CS-C/A/V/W18/24CT

1) Checking a gas-leakage

1. Remove the Service port caps from both 3-way valves.

2. Connect the Manifold gauge set to the service port of Liquid side 3-way valve.

3. Connect the Charging Cylinder to the Manifold gauge set and open the valve of the Cylinder.

4. Open the low pressure side valve of the Manifold gauge for approx. 10 seconds and then close.

5. Check a gas-leakage of the connecting portion of pipings.

6. Open the low pressure side valve of the Manifold gauge again.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

2) Air Purging

The air which contains a moisture is remaining in the Refrigeration cycle may cause a malfunction on the Compressor.

1. To purge the air, push the pin on the Gas side 3-way valve for three seconds using with a Hexagonal wrench and set it free for one minute.

Repeat this three times.

•

2. To balance the refrigerant, close the low pressure side valve on the Manifold gauge and release a refrigerant from the piping through service port until the gauge indicates 0.49 ~ 0.294 MPa.

3. Set the both 3-way valves to open position with the hexagonal wrench for the unit operation.

CS-C/A/V/W12CT

The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor.

1. Remove the caps from the 2-way and 3-way valves.

2. Remove the service-port cap from the 3-way valves.

3. To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten seconds, then close it.

4. Check gas-leakage of the connecting portion of the pipings.

5. To open 2-way valve again, turn the valve stem counterclockwise until it stops.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

9.3.6. CONNECT THE CABLE TO THE OUTDOOR UNIT

1. Remove the control board cover from the unit by loosening the screw.

2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 x 1.5mm 5 x 1.5mm

3. Secure the cable onto the control board with the holder (clamper).

4. Attach the control board cover back to the original position with the screw.

(A/W12CT) or 3 x 2.5mm2(C/V18/24CT) or 5 x 2.5mm2(A/W18/24CT)

(C/V12CT) or

9.3.7. PIPE FORMINGS, INSULATION AND FINISHING

1. If you may connect an addition al drain hose, the end of the drain-outlet should keep distance from the ground.

CAUTION

(Do not dip it into water, and fix it on the wall to avoid swinging in the wind.)

In case of the Outdoor unit is installed

below position of the indoor unit.

2. Tape the Pipings, drain hose and Connecting Cable from down to up.

3. From the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent.

(Refer to the right side diagram)

In case of the Outdoor unit is installed upper position of the indoor unit.

1. Tape the Pipings, and Connecting cable from down to up.

2. From the pipings gathered by taping along the exterior wall and the trap is required to prevent water from entering the room.

3. Fix the pipings onto the wall by saddle or equivalent.

(Refer to the left side diagram)

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

If a drain elbow is used, the unit should be placed on a

•

stand which is taller than 3 cm.

If the unit is used in an area where temperature falls below

•

0°C for 2 or 3 days in succession, it is recommended not to use a drain elbow, for the drain water freezes and the fan will not rotate.

CHECK THE DRAINAGE

Connect the drain hose, as described below.

•

Pour water into the drain pan to ensure that water is drained

•

smoothly through the drain hose.

AUTO SWITC H OPERATION

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

The below operations will be performed by pressing the “AUTO” switch.

1. AUTO OPERATION MODE

The Auto operation will be activated immediately once the Auto Switch is pressed.

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)

The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 10 sec.. A “pep” sound will occur at the fifth sec., in order to identify the starting of Test Run operation.

3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote Controller receiving sound can be changed over by pressing the “AUTO” Switch continuously for 10 sec. and above. A “pep”, “pep” sound will occur at the tenth sec., in order to indicate the “ON/OFF” change over of remote control receiving sound.

NOTE:

These equipment shall be connected to a suitable mains network with a main impedance less than the following: CS-A18CTP/CU-A18CTP5 : 0.10

CS-A24CTP/CU-A24CTP5 : 0.07 CS-V24CTP/CU-V24CTP5 : 0.13

Ω Ω Ω

CHECK ITEMS

Is there any gas leakage at flare nut connections?

Has the heat insulation been carried out at flare nut connection?

Is the connecting cable being fixed to terminal board firmly?

Is the connecting cable ends being clamped firmly?

Is the drainage OK?

Is the earth wire connection properly done?

Is the cooling operation normal?

Is the indoor unit properly secured to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

10 Servicing Information

Caution:

Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F(30-40°C) higher. Please use

•

a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).

Pb free solder will tend to splash when heated too high (about 1100° F/600°C).

•

Remote Control Reset

•

When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work.

If this happen, you will find a resetting terminal, and by shorting it with a minus screwdriver, it will return to normal.

Changing the wireless remote control transmission

•

code

When two indoor units are installed in the same room, in order to prevent operating errors caused by using two remote controls, cut a jumper wire at the remote control printed circuit board (A - B) and cut a jumper wire at the indoor printed circuit board (JX4). It is possible to select from 4 types of transmission codes including one at time of delivery condition (0).

11 Troubleshooting Guide

11.1. Refrigeration cycle system

In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

11.1.1. Relationship between the condition of the air conditioner and pressure and electric current

Cooling Mode Heating Mode

Condition of the air

conditoner Low Pressure High Pressure Electric current

during operation

Insufficient refrigerant (gas leakage)

Clogged capillary tube or Strainer

Short circuit in the indoor unit

Heat radiation deficiency of the outdoor unit

Low Pressure High Pressure Electric current

during operation

Inefficient compression

•

Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

11.1.2. Diagnosis methods of a malfunction of a compressor and 4-way valve

Nature of fault Symptom

•

Electric current during operation becomes approximately 20% lower than the normal value.

Insufficient compressing of a compressor

Locked compressor

•

The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).

•

The difference between high pressure and low pressure becomes almost zero.

•

Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter. In some cases, a breaker turns off.

•

The compressor is a humming sound.

Insufficient switches of the 4-way valve

•

Electric current during operation becomes approximately 80% lower than the normal value.

•

The temperature different between from the discharge tube to the 4-way valve and from suction tube to the 4-way valve becomes almost zero.

12 Technical Data

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

230V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 3.49 2.65 1.04 3.26 2.54 1.12 3.03 2.44 1.20 2.76 2.32 1.30

19.0°C 3.52 1.14

19.5°C 3.83 2.77 1.06 3.58 2.66 1.14 3.33 2.56 1.22 3.03 2.44 1.32

22.0°C 4.18 2.87 1.08 3.90 2.76 1.17 3.63 2.67 1.25 3.30 2.54 1.34

220V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 3.49 2.65 0.99 3.26 2.54 1.06 3.03 2.44 1.14 2.76 2.32 1.23

19.0°C 3.52 1.08

19.5°C 3.83 2.77 1.01 3.58 2.66 1.08 3.33 2.56 1.16 3.03 2.44 1.25

22.0°C 4.18 2.87 1.03 3.90 2.76 1.10 3.63 2.67 1.18 3.30 2.54 1.27

230V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 5.26 3.99 1.85 4.91 3.82 1.99 4.57 3.67 2.13 4.16 3.49 2.30

19.0°C 5.30 2.02

19.5°C 5.77 4.17 1.88 5.40 4.01 2.03 5.02 3.86 2.17 4.56 3.67 2.34

22.0°C 6.29 4.33 1.92 5.88 4.16 2.06 5.47 4.01 2.21 4.97 3.83 2.38

220V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 5.26 3.99 1.73 4.91 3.82 1.86 4.57 3.67 1.99 4.16 3.49 2.15

19.0°C 5.30 1.89

19.5°C 5.77 4.17 1.76 5.40 4.01 1.90 5.02 3.86 2.03 4.56 3.67 2.19

22.0°C 6.29 4.33 1.80 5.88 4.16 1.93 5.47 4.01 2.07 4.97 3.83 2.23

230V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 6.35 4.81 2.51 5.93 4.62 2.70 5.52 4.44 2.89 5.02 4.21 3.12

19.0°C 6.40 2.74

19.5°C 6.97 5.04 2.56 6.52 4.84 2.75 6.06 4.66 2.94 5.51 4.44 3.17

22.0°C 7.60 5.23 2.60 7.10 5.03 2.80 6.60 4.85 2.99 6.00 4.62 3.23

220V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 6.35 4.81 2.38 5.93 4.62 2.56 5.52 4.44 2.74 5.02 4.21 2.96

19.0°C 6.40 2.60

19.5°C 6.97 5.04 2.43 6.52 4.84 2.61 6.06 4.66 2.79 5.51 4.44 3.01

22.0°C 7.60 5.23 2.47 7.10 5.03 2.66 6.60 4.85 2.84 6.00 4.62 3.07

TC - Total Cooling Capacity (kW) Indoor 27°C/19°C SHC - Sensible Heat Capacity (kW) Outdoor 35°C/24°C IP - Input Power (kW)

13 Exploded View

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

14 Replacement Parts List

<Model: CS-A12CTP / CS-A18CTP / CS-A24CTP>

REF NO. DESCRIPTION & NAME QTY. CS-A12CTP CS-A18CTP CS-A24CTP REMARKS

1 CHASSY COMPLETE 1 CWD50C1258

2 FAN MOTOR 1 CWA921172

3 SUPPORTER FAN MOTOR 2 CWD932270

4 BLOWER WHEEL ASSY 2 CWH01K1014

5 AIR GUIDER B.W. 2 CWD321046

6 CONTROL BOARD ASSY 1 CWH10K1030

7 CAPACITOR 1 DS441155BLSA

8 TERMINAL BOARD ASSY 1 CWA28K1063

9 TRANSFORMER 1 CWA401030

10 ELECTRONIC CONTROLLER 1 CWA742919 CWA742921 CWA743059 O

11 SENSOR ASSY COMP 1 CWA50C2157

12 LEAD WIRE FAN MOTOR 1 CWA67C4431

13 LEAD WIRE FAN MOTOR 1 CWA67C4474

14 EVAPORATOR 1 CWB30C1280 CWB30C1314 CWB30C1313

15 SUPPORTER TUBE ASSY 1 CWD932259

16 FLARE NUT 1 CWT25007

17 DRAIN PAN COMPLETE 1 CWH40C1023

18 TAP DRAIN TRAY 1 CWH401031

19 DISCHARGE GRILLE COMPLETE 1 CWE20C2223

20 DISCHARGE GRILLE 1 CWE201046

21 VANE-AIR SWING 1 CWE241124

22 CONNECTING BAR 2 CWE261052

23 CONNECTING BAR 2 CWE261053

24 VANE 14 CWE241126

25 AIR SWING MOTOR 1 CWA981085

26 INDICATOR COMP. 1 CWE39C1069

27 LEAD WIRE INDICATOR 1 CWA67C4433

28 CONTORL BOARD CASING ASSY 1 CWH13K1009

31 INTAKE GRILLE 1 CWE221084

32 AIR FILTER 2 CWD001088

33 REMOTE CONTROL COMPLETE 1 CWA75C2318

34 REMOTE CONTROL HOLDER 1 CWH361022

35 POWER SUPPLY CORD 1 CWA20C2286 CWA20C2285 CWA20C2284

36 DRAIN HOSE 1 CWH85284

37 INSTALLATION HOLDER 1 CWH361018

38 ACCESSORY COMPLETE 1 CWH82C1166

39 FULCRUM 3 CWH621030

40 FRONT GRILLE 1 CWE11C2767

41 STRING COMPLETE 1 CWH84C1006

(1.5 µF/440V)

← ←

←

← ←

←

← ←

←

← ←

←

← ←

←

← ←

CWA921158 O

DS441305SLTA

(3.0 µF/440V)

CWT25004

CWE20C2189

CWH82C1156

(Note)

All parts are supplied from MAICO, Malaysia (Vendor Code: 061).

•

“O” marked parts are recommended to be kept in stock.

•

15 Exploded View

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

16 Replacement Parts List

<Model: CU-A12CTP5>

REF. NO. PART NAME & DESCRIPTION QTY. CU-A12CTP5 REMARKS

1 CHASSY ASS’Y 1 CWD50K2074

2 SOUND PROOF MATERIAL 1 CWG302110

3 FAN MOTOR BRACKET 1 CWD541030

4 SCREW - FAN MOTOR BRACKET 2 CWH55413

5 FAN MOTOR 1 CWA951121 0

6 SCREW - FAN MOTOR MOUNT 3 CWH55406

7 PROPELLER FAN ASS’Y 1 CWH03K1006

8 NUT - PROPELLER FAN 1 CWH56053

9 COMPRESSOR 1 QJ208PAA 0

10 ANTI - VIBRATION BUSHING 3 CWH501024

11 NUT - COMPRESSOR MOUNT 3 CWH4582065

12 CONDENSER 1 CWB32C1266

13 4-WAY VALVE 1 CWB00003 0

14 STRAINER 1 CWB11025

15 HOLDER COUPLING ASS’Y 1 CWH351023

16 2-WAY VALVE (LIQUID) 1 CWB021119 0

17 3-WAY VALVE (GAS) 1 CWB011105 0

18 OVERLOAD PROTECTOR 1 CWA121060 0

19 HOLDER - O.L.P. 1 -

20 TERMINAL COVER 1 CWH171021

21 NUT - TERMINAL COVER 1 CWH561020

22 SOUND PROOF BOARD 1 CWH151023

23 CONTROL BOARD 1 CWH102102

24 TERMINAL BOARD ASS’Y 1 CWA28K1034

25 CAPACITOR - COMPRESSOR 1 DS371306CPNA

26 HOLDER CAPACITOR 1 CWH30057

27 CAPACITOR - FAN MOTOR 1 CWA31618

28 CABINET SIDE PLATE (L) 1 CWE041031A

29 CABINET SIDE PLATE (R) 1 CWE041033A

30 CABINET FRONT PLATE 1 CWE06K1034

31 WIRE NET 1 CWD041023A

32 CABINET TOP PLATE 1 CWE031014A

33 PLATE - C. B. COVER 1 CWH131088

34 CONTROL BOARD COVER 1 CWH131092

35 HANDLE 1 CWE161010

36 OPERATION INSTRUCTIONS 1 CWF563868

37 INSTALLATION INSTRUCTIONS (ENGLISH, FRANCAIS, ESPANOL &

DEUTSCH)

38 INSTALLATION INSTRUCTIONS (ITALIANO, NEDERLANDS, PORTUGUES &

GREEK)

39 INSTALLATION INSTRUCTIONS (RUSSIA) 1 CWF612349

40 L-TUBE 1 CWH5850080

41 TUBE ASS’Y (CHECK VALVE/CAPILLARY) 1 CWT01C2730

42 ELECTRO MAGNETIC SWITCH 1 CWA00059 0

43 ELECTROLYTIC CAPACITOR 1 CWA32C067 0

44 ELECTRO MAGNETIC SWITCH 1 K6C2C7A00001 0

45 TEMPERATURE RELAY 1 CWA14C1009 0

46 V-COIL COMPLETE 1 CWA43C2054 0

47 TUBE ASS’Y (RECEIVER) 1 CWT01C2731

(30µF, 370VAC)

(2.0µF, 450VAC)

1 CWF612347

1 CWF612348

(Note)

All parts are supplied from MAICO, Malaysia (Vendor Code: 061).

•

“O” marked parts are recommended to be kept in stock.

•

17 Exploded View

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

18 Replacement Parts List

<Model: CU-A18CTP5 / CU-A24CTP5>

REF. NO. PART NAME & DESCRIPTION QTY. CU-A18CTP5 CU-A24CTP5 REMARKS

1 CHASSY ASS’Y 1 CWD50K514B

2 SOUND PROOF BOARD 1 CWH15223

3 FAN MOTOR BRACKET 1 CWD54237

4 SCREW - FAN MOTOR BRACKET 4 CWH55027

5 FAN MOTOR 1 CWA921182 CWA921081 0

6 SCREW - FAN MOTOR MOUNT 4 CWH55252

7 PROPELLER FAN ASS’Y 1 CWH00K087 CWH00K1001

8 NUT - PROPELLER FAN 1 CWH56053 CWH56060

9 COMPRESSOR 1 2JS350D3EA02 2JS464D3CA02 0

10 PACKING 1 CWB81043

11 ANTI - VIBRATION BUSHING 3 CWH50055

12 NUT - COMPRESSOR MOUNT 3 CWH4582065

13 SOUND PROOF MATERIAL 1 CWG30894

14 CONDENSER 1 CWB32C345R

15 HOLDER COUPLING ASS’Y 1 CWH35K029B CWH35K030B

16 3-WAY VALVE (LIQUID) 1 CWB01495

17 3-WAY VALVE (GAS) 1 CWB01364 CWB01430 0

18 4-WAY VALVE ASS’Y 1 CWB00K1007 CWB00K1008 0

19 TUBE ASS’Y (CAPILLARY TUBE & STRAINER) 1 CWT01C2682 CWT01C2672

20 V-COIL COMPLETE 1 CWA43C2005

21 TERMINAL COVER 1 CWH171012

22 NUT - TERMINAL COVER 1 CWH7080300

23 CONTROL BOARD 1 CWH10K1019

24 CAPACITOR - FAN MOTOR 1 F0GAH305A002

25 CAPACITOR - COMPRESSOR 1 DS371506CPNA

26 HOLDER CAPACITOR 1 CWH30060

27 TERMINAL BOARD ASS’Y 1 CWA28K1021

28 ELECTRONIC CONTROLLER 1 CWA743072

30 SENSOR COMPLETE 1 CWA50C618

31 HOLDER - SENSOR 1 CWH32089

32 CABINET FRONT PLATE 1 CWE06K034B

33 CABINET REAR PLATE 1 CWE02096B

34 CABINET FRONT PLATE 1 CWE06075B

35 CABINET SIDE PLATE 1 CWE04111B

36 CABINET TOP PLATE 1 CWE03101B

37 CONTROL BOARD COVER 1 CWH13336A

38 HANDLE 2 CWE16000E

39 OPERATION INSTRUCTIONS 1 CWF563868

40 INSTALLATION INSTRUCTIONS (ENGLISH, FRANCAIS,

ESPANOL & DEUTSCH)

41 INSTALLATION INSTRUCTIONS (ITALIANO, NEDERLANDS,

PORTUGUES & GREEK)

42 INSTALLATION INSTRUCTIONS (RUSSIA) 1 CWF612349

43 PARTICULATE PLATE 1 CWD90830

44 TUBE ASS’Y (RECEIVER) 1 CWT01C2448

1 CWF612347

1 CWF612348

←

All parts are supplied from MAICO, Malaysia (Vendor Code: 061).

•

“O” marked parts are recommended to be kept in stock.

•

19 Electronic Circuit Diagram

• CS-A12CTP / CU-A12CTP5

SCHEMATIC DIAGRAM 1/4

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

R103

R102

AUTO

SW101

R101

IC101

AIR SWING

TIMER

SLEEP

POWER

BZ101

Dulex Wireless Model A742945

C101 22µF

D101

D102

D103

D104

10V

9 8 7 6 5 4 3 2 1

CN-DISP

(PH9)

CN-RMT

(PH9)

CN-DISP

CN-HA

(XH4)

C28

0.01µ

R64 100k

C31

0.01µ

R60

4.00MHz (47pF x 2)

R30

150k

R65

100k 1 2

3 4 5 6 7

1 2 3 4 5 6 7 8 9

1 2 3 4

R67

R63 10k

R18 620 R17 620 R16 620 R15 430

C03

0.01µ

R09

10k

Q01

4.7k

10k

C30

0.01µ

R58

10k

C29

R62 10k

R59

0.01µ

C23

X01

R61

R57 10k

AIR SWING

MOTOR

1 2 3 4 5

(PH5)

CN-STM

R/B

Vcc

C02

C08

0.01µ

0.1µ

C20

R56

0.01µ

10k

R14

5.1k

R11

RY-PWR 2 3 4 5

RY-HOT

C01

0.01µ

R44

43 /2W

R12

10k

R43

43 /2W

C3EBDG000021

IC05

GND

IC02

16 1

14153

413

512

611

710

JX5

A52A2003GR

R55

10k

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

SCHEMATIC DIAGRAM 2/4

R38

C15

C27

0.1µ

R37

0.01µ

R70 1k R69 1k R68 1k

C04

0.1µ

R32 20k

AN3

AN4

AN5

AN6

AN7

VREF+

VCD

OSC2

OSC1

VSS

MM0D

SBO0

SBI0

SBT0

AN2

P03

AN1

P04

62 61 60

AN0

VREF-

P05

BUZZER

59 58 57 56 55 54

P81

P80

LED2

LED3

LED4

IC01

MN101C309

P13

P12

P11

P10

NRST

2221

252423

R29 10k

R10 10k

LED5

P14

P86

IRQ0

TEST

R28

53 52 51 50 49

P75

P76

P77

P87

P24

P23

IRQ2

IRQ1

3130

R72

R73

R27 24k

R71

R66

10k

R26

R25

R24

R23

R22

R21

R20

R19

P74

P73

P72

P71

P70

D12

P67

D11

P66

D10

P65

D09

P64

D08

P63

D07

P62

D06

P61

D05

P60

P54

P53

P52

P51

P50

C19

0.1µ

R08

SCHEMATIC DIAGRAM 3/4

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

R49

C22

0.1µ

R42

10k

R48

C10

0.1µ

C18

220µ

16V

R47

1.82k

PC02

D13 D14

R34 51k

IC03

R07

Q04

C07

10µ

50V

C24

0.1µ

C09

100µ

16V

R05

R06

4.7k

820

R35

10k

C16

470µ

25V

R04

3.9k

C13

0.1µ

R46 47k2W

C06

0.01µ

R45 47k2W

SSR02 ZNR02

IC04

12V

3300µ

PC01

C17

35V

DB01

CT01

+–

RY-HOT

T01

751

R02

39k/2W

R03 510

R33

C05

15k

0.1µ

R74

JX4

SSR02

RX1

R31

20k

JX1

R52

6.2k

R53

10k

R54

6.2k

JX8

JX7JX6

R39

R13

10k

Q02

4.7k

10k

R50

R51

100k

10k

Q05

Q06

R41

JX2

51k

R40

39k

C21 10µ 50V

JX3

ZD01

C14

0.01µ

SSR01

Q03

4.7k

10k

R36

(PH3)

CN-FB

3 2 1

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

SCHEMATIC DIAGRAM 4/4

PIPE TEMP. SENSOR

(20k 3950)

4 3 2 1

CN-TH

(PH4)

AIR TEMP. SENSOR (15k 3950)

INDOOR

UNIT

TERMINAL

ZNR03

511U

FM(BLU)

HOT(RED)

R01

39k/2W

L01

125µH

CR01

RY-PWR

ZNR01

SSR01

C11

0.047µ

511U

C12

0.047µ

C-FM

543 1

AC 220-240V

50/60 HZ

FUSE

250V

CN-FM

AC(WHT)

OUTDOOR

UNIT

TERMINAL

TRS

MAGNETIC RELAY

BL/B

CAPACITOR

ELECTROLYTIC

COIL

REVERSING VALVE

OVER LOAD

PROTECTOR

COMPRESSOR

CAPACITOR

1234

314

567

FAN MOTOR

CAPACITOR

FAN

MOTOR

• CS-A18CTP / CU-A18CTP5

• CS-A24CTP / CU-A24CTP5

SCHEMATIC DIAGRAM 1/4

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

R103

R102

AUTO

SW101

R101

IC101

1 2

AIR SWING

TIMER

SLEEP

POWER

BZ101

Dulex Wireless Model

A742945

C101

22 F

10V

D101

D102

D103

D104

9 8 7 6 5 4 3 2 1

CN-DISP

(PH9)

CN-RMT

CN-DISP

CN-HA

(XH4)

(PH9)

C28

0.01

R64 100k

C31

0.01

R60

4.00MHz (47pF x 2)

R30

150k

R65

100k 1 2

5 6 7

1 2 3

5 6 7 8 9

1 2 3

R67

R63 10k

R18 620 R17 620 R16 620 R15 430

C03

0.01

R09

10k

0.01

Q01

4.7k

10k

C30

R58

10k

C29

R62 10k

R59

0.01

C23

0.01

X01

R61

R57 10k

AIR SWING

MOTOR

1 2 3 4 5

(PH5)

CN-STM

R/B

Vcc

C02

C08

0.01

0.1

C20

R56

0.01

10k

R14

5.1k

R11

RY-PWR 2 3

RY-HOT

C01

0.01

R44

43 /2W

R12

10k

R43

43 /2W

C3EBDG000021

IC05

GND

IC02

16 1

14153

A52A2003GR

413

512

611

710

JX5

R55

10k

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

SCHEMATIC DIAGRAM 2/4

R38

C15

C27

0.1

R37

0.01

R70 1k R69 1k R68 1k

C04

0.1

R32

20k

AN3

AN4

AN5

AN6

AN7

VREF+

VCD

OSC2

OSC1

VSS

MM0D

SBO0

SBI0

SBT0

AN2

P03

AN1

P04

62 61 60

AN0

VREF-

P05

BUZZER

59 58 57 56 55 54

P81

P80

LED2

LED3

LED4

IC01

MN101C309

P13

P12

P11

P10

NRST

2221

252423

R29 10k

R10 10k

53 52 51 50 49

P86

LED5

IRQ0

P14

P87

IRQ1

P77

IRQ2

P76

P23

R28

TEST

P24

3130

P75

R72

R73

R27

24k

R71

R66 10k

R26

R25

R24

R23

R22

R21

R20

R19

P74

P73

P72

P71

P70

D12

P67

D11

P66

D10

P65

D09

P64

D08

P63

D07

P62

D06

P61

D05

P60

P54

P53

P52

P51

P50

C19

0.1

R08

SCHEMATIC DIAGRAM 3/4

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

R49

C22

0.1

R48

C18

220

16V

C10

0.1

R47

1.82k

PC02

D13 D14

R34

51k

IC03

R07

Q04

C07

10 50V

C24

0.1

C09

100

16V

R05

820

R06

4.7k

R35

10k

C16

470

25V

R04

3.9k

C13

0.1

R46 47k2W

C06

0.01

R45 47k2W

SSR02 ZNR02

IC04

12V

PC01

C17

3300

35V

DB01

CT01

+—

RY-HOT

T01

751

R02

39k/2W

R03

510

R33

C05

15k

0.1

R74

JX4

SSR02

RX1

R31

20k

JX1

R52

6.2k

R53 10k

R54

6.2k

JX8

JX7JX6

R42

R39

4.7k

10k

R50

Q05

10k

R51

10k

R13

10k

Q06

10k

Q02

100k

R41 51k

JX2

R40 39k

C21 10 50V

JX3

ZD01

C14

0.01

SSR01

Q03

4.7k

10k

R36

(PH3)

CN-FB

3 2 1

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

SCHEMATIC DIAGRAM 4/4

PIPE TEMP. SENSOR

(20k 3950)

3 2 1

CN-TH

(PH4)

AIR TEMP. SENSOR (15k 3950)

INDOOR

UNIT

TERMINAL

ZNR03

511U

FM(BLU)

HOT(RED)

R01

39k/2W

L01

125 H

CR01

RY-PWR

ZNR01

SSR01

C11

0.047

511U

C12

0.047

C-FM

543 1

AC 220-240V

50/60 HZ

FUSE

250V

AC(WHT)

CN-FM

BLU BLU

CAPACITOR

BLU

COMP (VLT)

ELECTRONIC

CONTROLLER

T01

DB01

T02

DB02

RED

1234

BLK

VLT

ZNR03 ZNR04

FAN MOTOR

RED

RY-OFF

RY-H/L

(BRW)

GRY

RY-DEICE

FM1

WHT

AC1 (WHT) HOT 1 (RED) HOT 2 (BLK)DEICE (GRY)

FUSE

(T 2A L 250V)

ZNR02

FM2

(ORG)

ORG

BRW or YLW

CR02

ZNR01

OUTDOOR

UNIT

TERMINAL

YLW

(4-WAYS

VALV E)

BLK

WHT

COIL

RY-HOT

1 2 3 4

CN-TH (WHT)

BLU

COMPRESSOR

CAPACITOR

SENSOR

(AIR TEMP.)

SENSOR

(PIPE TEMP.)

RED

FAN

MOTOR

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

How to use electronic circuit diagram

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

TIMER TABLE

Name Time (When test point Remarks

Real Timer 1hr. 1 min.

10 min. 10 sec.

1 min. 1 sec. Time Delay Safety Control 2 min. 58 sec. 0 sec. Forced Operation 60 sec. 0 sec. Time Save Control 7 min. 4.2 sec. Anti-Freezing 4 min. 0 sec. Auto Mode Judgement 25sec. 0 sec. Soft Dry OFF 6 min. 36 sec.

ON 10 min. 60 sec. Soft Dry: 10 min. operation Cooling 40 sec. 4 sec.

Deodorizing Control

Soft Dry 40 sec. 4 sec.

Comp. Reverse Rotation Detection 5 min. 30 sec. Comp. ON 5 min. and above

Sleep Mode Operation 8 hrs. 48 sec. Sleep Mode Waiting 1hr. 6 sec. Random Auto Restart Control 0 ~ 62 sec. 0 ~ 6.2 sec. 4 Way Valve 5 min. 30 sec. After Deice Ended 30 sec. 3 sec. Comp. OFF after deice (2.0 & 2.5 Hp) Hotstart Delay Times 4 min. 0 sec. (2.0 & 2.5 Hp) Hotstart Finish Times 2 min. 0 sec. (2.0 & 2.5 Hp) Deice Operation Occurs (1.5 HP) 60 min. 6 sec. 60 min. after previous deice

Overload Deice Timer (1.5 HP) 1 min. 6 sec. Comp. ON continuously for 1 min. check Deice End (1.5 HP) 12 min. 72 sec. Max. Operation time

Deice Operation (Extend) (1.5 HP) 60 sec. 0 sec.

Hotstart Finish (1.5 HP) 30 sec. 0 sec.

70 sec. 7 sec. 20 sec. 2 sec.

180 sec. 18 sec.

360 sec. 36 sec.

2 min. 0 sec.

4 min. 24 sec. Continuously 4 min. Comp. ON

50 sec. 0 sec. TRS ON continuously for 50 sec. check

30 sec. 3 sec. 30 sec. Comp. OFF after deice 10 sec. 1 sec. 4-Way Valve ON 10 sec. later after deice

120 sec. 0 sec. 180 sec. 0 sec.

Test Mode

Short-circuited)

19.1. REMOTE CONTROL

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD

CS-A12CTP CU-A12CTP5 / CS-A1 8CTP CU-A18CTP5 / CS-A24CTP CU-A24CTP5

[MAICO] Printed in Malaysia

Panasonic CU-A12CTP5, CS-A18CTP, CU-A18CTP5, CS-A24CTP, CU-A24CTP5 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual