Panasonic CS-A18BKP Service Manual

Order No. MAC0111062C0

Room Air Conditioner

CS-A18BKP CU-A18BKP5 CS-A24BKP CU-A24BKP5

CONTENTS

Page Page

1 Features 2 2 Functions 3 Product Specifications 4 Dimensions 5 Refrigeration Cycle Diagram 6 Block Diagram 7 Wiring Diagram 8 Operation Details 9 Operating Instructions 10 Installation Instructions

11 3-way Valve 48

12 Servicing Information

13 Troubleshooting Guide 14 Technical Data

12 14

15 Exploded View

16 Replaceme nt Parts List 17 Exploded View

16 17

18 Replaceme nt Parts List

19 Electronic Circuit Diagram

61 65 67 71 72 73 74 75

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

1 Features

High Efficiency

•

Compact Design

•

Comfort Environment

•

8 hours of sleep mode operation

−

Air filter with function to reduce dust and smoke

−

Wider range of horizontal discharge air

−

New Automatic air swing and manual adjusted by

−

remote control for horizontal airflow.

Auto Restart

•

Random auto restart after power failure for safety restart

−

operation

Removable and Washable Front Panel

•

Remote Control Self-illuminating Button

•

Catechin Air Purifying Filter

•

Trap dust, tobacco smoke and tiny particles

−

Prevent the growth of bacteria and viruses trapped

−

Solar Refreshing Deodorizing Filter

•

Remove unpleasant odour from the air

−

Quality Improvement

•

Gas leakage protection

−

Prevent compressor reverse cycle

−

Inner protector

−

Noise prevention during soft dry operation.

−

Anti-dew Formation Control (Cooling & Soft Dry)

−

Overload Protection Control (Heating)

−

Outdoor Fan Control

−

Compressor High Pressure Control

−

Blue Coated Condenser

−

High resistance to corrosion.

−

Operation Improvement

•

Economy mode to reduce electrical power consumption

−

Powerful mode to reach the desired room temperature

−

quickly

Long Installation Piping

•

Long piping up to 25 meter

−

24-hour Timer Setting

•

2 Functions

Remote Control

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Self illuminating

button

OFF / ON I

MODE

FAN SPEED

AIR SWING

Operation OFF / ON

Operation Mode Selection

•

AUTO HEAT COOL DRY

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

Indoor Fan Speed Selection

•

FAN

Low Fan Speed

•

FAN

Medium Fan Speed

•

FAN

High Fan Speed

•

AUTO FAN

Automatic Fan Speed

Vertical Airflow Direction Control

• Vertical Automatic Airflow Direction Control and Manual Airflow Direction Control (5 stages of adjustment).

•

Horizontal Automatic Airflow Direction Control and Manual Airflow Direction Control (5 stages of adjustment).

TEMP.

ON-TIMER OFF-TIMER

TIME

SET CANCEL

CLOCK

Room Temperature Setting

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.

Timer Operation Selection

• 24-hour, OFF / ON Real Timer Setting.

Time / Timer Setting

• Hours and minutes setting.

Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and

cancellation.

Clock Setting

POWERFUL

ECONOMY

Powerful Mode Operation OFF/ON

Economy Mode Operation OFF/ON

SLEEP

• Current time setting.

Sleep Mode Operation OFF / ON

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Indoor Unit

AUTO

OFF / ON

Automatic Operation Button

• Press for < 5s to operate Automatic operation mode. (Used when the remote control cannot be used.)

• Press continuously for 5s or < 10s to operate Test Run/Pump down. “Beep” sound will be heard at the 5th second. (Used when test running or servicing.)

• Press continuously for 10s and above to omit or resume the remote control signal receiving sound. “Beep, beep” sound will be heard at the 10th second.

Operation Indication Lamps (LED)

•

POWER

(Green)..........Lights up in operation,

•

SLEEP

(Orange) .........Lights up in Sleep Mode

•

TIMER

(Orange).........

•

POWERFUL

•

ECONOMY

(Orange)...Lights up in Powerful

(Green) ...... Lights up in Economy

Operation Mode

• Heating, Cooling, Soft Dry and Automatic Mode.

blinks in Automatic Operation Mode judging and Hot Start operation.

Operation. Lights up in Timer Setting.

Mode Operation. Mode Operation.

Sleep Mode Auto Control

• Indoor Fan operates refer to Indoor Fan Speed control.

• Operation stops after 8 hours.

Indoor Fan Speed Control

• High, Medium and Low.

• Automatic Fan Speed Mode – Heating : Fan speed varies from Me

→ SSLo in accordance with indoor heat exchanger.

– Cooling : Fan rotates at Hi, Me and

SLo speed. Deodorizing control is available.

– Soft Dry : Fan rotates at SLo speed.

Deodorizing control is available.

Airflow Direction Control

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

Time Delay Safety Control

• Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control

• Cooling Operation only.

Powerful Operation

•

Reaches the desired room temperature quickly.

Economy Operation

• To reduce electrical power consumption.

Random Auto Restart Control

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

Anti-Freezing Control

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

Anti-Dew Formation Control

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

Hot-Start Control

• At Heating Operation the indoor fan will operate at SLo speed when indoor heat exchanger temperature reaches 30°C.

Anti Cold Draft Control

• The indoor fan operates at Lo– (30 sec.) after that SSLo when the indoor heat exchanger temperature is low. (During Heating mode thermal off)

Outdoor Unit

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Compressor Reverse Rotation Protection Control

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

Overload Protector

• Inner protector.

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.

Outdoor Fan Operation Control

• 6-pole induction motor (2 speed).

• For Cooling or Soft Dry operation

Hi-speed ............. When outdoor

temperature reaches to 31°C.

Lo-speed............. When outdoor

temperature reaches to 29°C.

• For Heating operation

Hi-speed ............. When outdoor

temperature reaches to 13.5°C.

Lo-speed............. When outdoor

temperature reaches to 15.5°C.

• For Over-heating Protection, the Fan is switched ON or OFF depending on the piping temperature and the outdoor temperature.

Deice Control

• To prevent frosting at outdoor heat exchanger during Heating Operation.

4-Way Valve Control

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

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

3 Product Specifications

Unit CS-A18BK CU-A18BK

Power Source Phase, Voltage, Cycle (1)

(4) (2) Single, 240 - 230, 50 Hz (3) Single, 220, 50 Hz

Cooling Capacity kW (BTU/h) (1)

(2) (4)

(3) 5.30 (18,100)

Heating Capacity kW (BTU/h) (1)

(4) (2) 5.75 - 5.70 (19,600 - 19,400) (3) 5.65 (19,300)

Moisture Removal l/h (Pint/h) 2.9 (6.1)

Single, 230 - 220, 50 Hz

5.30 - 5.30 (18,100 - 18,100)

5.70 - 5.65 (19,400 - 19,300)

Airflow Method OUTLET

INTAKE

Air Volume Indoor Air (Lo) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 13.1 (460)

Indoor Air (Me) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 14.6 (520)

Indoor Air (Hi) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 15.4 (540)

Indoor Air (SHi) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 15.9 (560)

Noise Level dB (A) (1)

(4) (2) Cooling; High 43 - 43, Low 38 - 3 8

(3) Cooling; High 43, Low 38

Power level dB (1) Cooling; 54 - 54

(2) Cooling; 55 - 55

(3) (4)

SIDE VIEW TOP VIEW

Cooling; 13.1 (460) - 13.1 (460) Heating; 14.1 (500) - 14.1 (500)

Heating; 14.1 (500)

Cooling; 14.6 (520) - 14.6 (520) Heating; 14.7 (520) - 14.7 (520) —

Heating; 14.7 (520)

Cooling; 15.4 (540) - 15.4 (540) Heating; 15.9 (560) - 15.9 (560)

Heating; 15.9 (560)

Cooling; 15.9 (560) - 15.9 (560) Heating; 15.9 (560) - 15.9 (560)

Heating; 15.9 (560)

Cooling; High 43 - 43, Low 38 - 38 Heating; High 42 - 42, Low 38 - 38

Heating; High 42 - 42, Low 38 - 38

Heating; High 42, Low 38

Heating; 53 - 53

Heating; 54 - 54

— —

Cooling; High 55 - 54 Heating; High 56 - 55

Cooling; High 56 - 55 Heating; High 57 - 56

Cooling; High 54 Heating; High 55

Cooling; 68 - 67 Heating; 69 - 68

Cooling; 70 - 69 Heating; 72 - 71

—

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Unit CS-A18BK CU-A18BK

Electrical Data Input Power kW (1)

(4)

Cooling; 1.76 - 1.72

Heating; 1.71 - 1.65

(2) Cooling; 1.81 - 1.76

Heating; 1.80 - 1.75

(3) Cooling; 1.72

Heating; 1.65

Running Current A (1)

(4)

Cooling; 7.8 - 8.0 Heating; 7.6 - 7.7

(3) Cooling; 8.0

Heating; 7.7

EER W/W (BTU/hW) (1)

Cooling; 3.01 - 3.08 (10.28 - 10.52)

(4) (2) Cooling; 2.93 - 3.01 (10.00 - 10.28) (3) Cooling; 3.08 (10.52)

COP W/W (BTU/hW) (1)

Heating; 3.33 - 3.42 (11.35 - 11.70)

(4) (2) Heating; 3.19 - 3.26 (10.89 - 11.09) (3) Heating; 3.42 (11.70)

Starting Current A (1)

38.0

(4) (3) 36.0

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Inner diameter mm 12 — Length mm 650 —

inch inch

G ; Half Union 1/2”

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

L ; (liquid side) 1/4”

G ; 3-way valve 1/2”

L ; 3-way valve 1/4”

G ; (gas side) 1/2”

L ; (liquid side) 1/4”

Power Cord Length m 1.9 —

Number of core-wire 3 (1.5 mm2) —

Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)

Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)

Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300) Net Weight lb (kg) 24 (11.0) 132 (60.0) Compressor Type — Rotary (1 cylinder)

rolling piston type Motor Type — Induction (2-poles) Rated Output kW — 1.5

Air Circulation Type Cross-flow Fan Propeller Fan

Material ASHT-18 PC + AES + Glass Fiber 15%

Motor Type Transistor (8-poles) Induction (6-poles)

Input W 44.8 - 53.5 151.2 - 135.7 Rated Output W 30 72 Fan Speed Low rpm (1)

(2)

Cooling; 1,160 - 1,160 Heating; 1,240 - 1,240

635 - 600

(4) (3) Cooling; 1,160

600

Heating; 1,240

Medium rpm (1)

(2)

Cooling; 1,290 - 1,290 Heating; 1,290 - 1,290

—

(4) (3) Cooling; 1,290

—

Heating; 1,290

High rpm (1)

(2)

Cooling; 1,360 - 1,360 Heating; 1,400 - 1,400

990 - 950

(4) (3) Cooling; 1,360

950

Heating; 1,400

SuperHigh rpm (1)

(2)

Cooling; 1,400 - 1,400 Heating; 1,400 - 1,400

—

(4) (3) Cooling; 1,400

—

Heating; 1,400

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper Fin material Aluminium (Pre Coat) Aluminium (Blue Coat) Fin Type Slit Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

2×15 2×26 FPI 21 16 Size (W × H × L) mm 810 × 315 × 25.4 769.2

× 660.4 × 44

732.9

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Unit CS-A18BK CU-A18BK

Refrigerant Control Device — Capillary Tube Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS

Refrigerant (R-22) g (oz) — 1,640 (57.9) Thermostat Electronic Control Mechanical Control Protection Device — Inner Protector Capillary Tube Length mm — Cooling; 816, Heating; 365

Flow Rate l/min — Cooling; 10.6, Heating; 26.5 Inner Diameter mm — Cooling; 1.5, Heating; 2.2

Air Filter Material

Style Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 45 µF, 370VAC Fan Motor Capacitor µF, VAC — 3.0 µF, 450VAC

P.P.

Honeycomb

M60 (700)

—

Note:

•

Specifications are subject to change without notice for further improvement.

•

(1) — CS-A18BKP/CU-A18BKP5 (Europe).

•

(2) — CS-A18BKP-2/CU-A18BKP5-2 (Oceania).

•

(3) — CS-A18BKP-3/CU-A18BKP5-3 (Argentina).

•

(4) — CS-A18BKP-6/CU-A18BKP5-6 (Turkey).

Unit CS-A24BK CU-A24BK

Power Source Phase, Voltage, Cycle (1)

(4)

(2) Single, 240 - 230, 50 Hz

(3) Single, 220, 50 Hz

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Single, 230 - 220, 50 Hz

Cooling Capacity kW (BTU/h) (1)

(4)

(2) 6.67 - 6.67 (22,700 - 22,700)

(3) 6.84 (23,300)

Heating Capacity kW (BTU/h) (1)

(4)

(2) 7.80 - 7.77 (26,600 - 26,500)

(3) 7.85 (26,800)

Moisture Removal l/h (Pint/h) (1)

(3) (4)

(2) 3.8 (8.0)

Airflow Method OUTLET

INTAKE

6.67 - 6.84 (22,700 - 23,300)

7.72 - 7.85 (26,300 - 26,800)

3.9 (8.2)

SIDE VIEW TOP VIEW

Air Volume Indoor Air (Lo) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 14.4 (510)

Indoor Air (Me) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 16.4 (580)

Indoor Air (Hi) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 17.5 (620)

Indoor Air (SHi) m3/min (cfm) (1)

(2) (4)

(3) Cooling; 18.1 (640)

Noise Level dB (A) (1)

(4) (2) Cooling; High 47 - 47, Low 41 - 4 1

(3) Cooling; High 47, Low 41

Power level dB (1) Cooling; 58 - 58

(2) Cooling; 59 - 59

(3) (4)

Cooling; 14.4 (510) - 14.4 (510) Heating; 15.6 (550) - 15.6 (550)

Heating; 15.6 (550)

Cooling; 16.4 (580) - 16.4 (580) Heating; 16.4 (580) - 16.4 (580)

Heating; 16.4 (580)

Cooling; 17.5 (620) - 17.5 (620) Heating; 18.1 (640) - 18.1 (640)

Heating; 18.1 (640)

Cooling; 18.1 (640) - 18.1 (640) Heating; 18.1 (640) - 18.1 (640)

Heating; 18.1 (640)

Cooling; High 47 - 47, Low 41 - 41 Heating; High 46 - 46, Low 41 - 41

Heating; High 46 - 46, Low 41 - 41

Heating; High 46, Low 41

Heating; 57 - 57

Heating; 59 - 59

— —

—

— —

—

Cooling; High 60 - 59

Heating; High 61 - 60 Cooling; High 61 - 60

Heating; High 62 - 61

Cooling; High 59

Heating; High 60

Coolling; 73 - 72

Heating; 74 - 73

Coolling; 75 - 74

Heating; 78 - 77

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Unit CS-A24BK CU-A24BK

Electrical Data Input Power kW (1)

(4)

Cooling; 2.80 - 2.60 Heating; 2.76 - 2.64

(2) Cooling; 2.87 - 2.80

Heating; 2.86 - 2.81

(3) Cooling; 2.60

Heating; 2.64

Running Current A (1)

(4)

Cooling; 13.2 - 12.6 Heating; 13.0 - 12.9

(3) Cooling; 12.6

Heating; 12.9

EER W/W (BTU/hW) (1)

Cooling; 2.38 - 2.63 (8.11 - 8.96)

(4) (2) Cooling; 2.32 - 2.38 (7.91 - 8.11) (3) Cooling; 2.63 (8.96)

COP W/W (BTU/hW) (1)

Heating; 2.80 - 2.97 (9.53 - 10.15)

(4) (2) Heating; 2.73 - 2.77 (9.30 - 9.43) (3) Heating; 2.97 (10.15)

Starting Current A (1)

66.0

(4) (3) 64.0

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Inner diameter mm 12 —

Length mm 650 —

inch inch

G ; Half Union 5/8”

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

L ; (liquid side) 1/4”

G ; 3-way valve 5/8”

L ; 3-way valve 1/4”

G ; (gas side) 5/8”

L ; (liquid side) 1/4”

Power Cord Length m 1.9 —

Number of core-wire 3 (2.5 mm2) — Dimensions Height inch (mm) 10 - 13/16 (275) 26 - 31/32 (685)

Width inch (mm) 39 - 9/32 (998) 31 - 1/2 (800)

Depth inch (mm) 8 - 9/32 (210) 11 - 13/16 (300) Net Weight lb (kg) 24 (11.0) 139 (63.0) Compressor Type — Rotary (1 cylinder) rolling piston

type Motor Type — Induction (2-poles) Rated Output kW — 2.2

Air Circulation Type Cross-flow Fan Propeller Fan

Material ASHT-18 PC + AES + Glass Fiber 15%

Motor Type Transistor (8-poles) Induction (6-poles)

Input W 44.8 - 53.5 190.0 - 171.3 Rated Output W 30 108 Fan Speed Low rpm (1)

(2)

Cooling; 1,260 - 1,260 Heating; 1,360 - 1,360

680 - 635

(4) (3) Cooling; 1,260

635

Heating; 1,360

Medium rpm (1)

(2)

Cooling; 1,430 - 1,430 Heating; 1,430 - 1,430

—

(4) (3) Cooling; 1,430

—

Heating; 1,430

High rpm (1)

(2)

Cooling; 1,530 - 1,530 Heating; 1,580 - 1,580

1,170 - 1,140

(4) (3) Cooling; 1,530

1,140

Heating; 1,580

SuperHigh rpm (1)

(2)

Cooling; 1,580 - 1,580 Heating; 1,580 - 1,580

—

(4) (3) Cooling; 1,580

—

Heating; 1,580

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper Fin material Aluminium (Pre Coat) Aluminium (Blue Coat) Fin Type Slit Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

2 × 15 2 × 26 FPI 21 16 Size (W × H × L) mm 810 × 315 × 25.4 769.2

× 660.4 × 44.0

732.9

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Unit CS-A24BK CU-A24BK

Refrigerant Control Device — Capillary Tube

Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS

Refrigerant (R-22) g (oz) — 1,770 (62.5) Thermostat Electronic Control Mechanical Control Protection Device — Inner Protector Capillary Tube Length mm — Cooling; 663, Heating; 550

Flow Rate l/min — Cooling; 13.0, Heating; 29.0 Inner Diameter mm — Cooling; 1.6, Heating; 2.4

Air Filter Material

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

P.P.

Honeycomb

M60 (1,130)

—

Note:

•

Specifications are subject to change without notice for further improvement.

•

(1) — CS-A24BKP/CU-A24BKP5 (Europe).

•

(2) — CS-A24BKP-2/CU-A24BKP5-2 (Oceania).

•

(3) — CS-A24BKP-3/CU-A24BKP5-3 (Argentina).

•

(4) — CS-A24BKP-6/CU-A24BKP5-6 (Turkey).

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

4 Dimensions

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

5 Refrigeration Cycle Diagram

6 Block Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

7 Wiring Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8 Operation Details

8.1. Cooling Mode Operation

Cooling in operation according to Remote Control setting.

Time Delay Safety Control (3 minutes)

When the compressor is stopped by Remote Contro l, it restarts after 3 minutes when the Remote Control is turned ON.

•

When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.

•

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 Lo

Indoor intake air temperature is more than 24°C and less than 30°C.

−

Remote Control setting temperature is less than 25°C.

−

Compressor is on.

−

Cooling operation mode.

−

Indoor Fan motor operate at Low fan speed.

−

This control is cancelled immediately when above condition is changed.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Automatic Fan Speed Mode

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

Fan speed rotates in the range of Hi to Me.

•

Deodorizing Control.

•

Cooling Opera tion Time Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.2. Soft Dry Mode Operation

The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and

•

then Soft Dry operation will start. During Soft Dry operation, the Indoor Fan will operate at SLo speed.

•

Once room temperature reaches below Soft Dry OFF temperature. Indoor Fan, Compressor and Outdoor Fan stop for 6

•

minutes.

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.)

Anti-Dew Formation Control

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

•

Automatic Fan Speed Mode

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

Fan speed off and on at SLo speed.

•

Deodorizing Control.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Soft Dry Operation Time Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.3. Heating Mode Operation

Heating in operation according to Remote Control setting.

•

Time Delay Safety Control

When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when

•

the Power Switch, Remote Control is turned ON or the power supply is resumed. When the setting temperature is reached during heating operation, the compressor stops and it will not start for 4 minutes.

•

Overload Protection Control

(a) Outdoor Fan Control

If the temperature of the Outdoor Heat Exchanger less than -3°C, Outdoor Fan is ON. The Outdoor Fan stop, when Outdoor

•

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

or more according to Outdoor Air Temperature region as table below:

During starting of Heating mode and after deice, Outdoor Fan ON for 90 sec. (Hi).

(b) Compressor High Pressure Control

If the indoor heat exchanger becomes 68°C or more, the compressor will stop and restart automatically.

•

(Time Delay Safety Control - 4 minutes waiting).

4-way Valve Control

4-way valve ON during Heating operation, except deicing operation.

•

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

•

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 reaches 42°C. Maximum Hot start duration = 4 minutes. After 4 minutes, Hot start operation will be shifted to normal Heating operation.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Automatic Fan Speed Mode

When Autom atic 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.

•

Anti Cold Draft Control

Heating Opera tion Time Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Deicing Control

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 or 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.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

a) Normal Deicing Time Diagram

(b) Overload Deicing Time Diagram

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.4. 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.

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 (Judgemen t: (Judgement:

Heating 23°C & Above) Below 23°C)

O O

Heating Cooling (Judgement: Not Applicable (Judgemen t:

23°C Heating Above 23°C) 23°C & below)

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 tempe rature 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 standa rd setting temperature can be increased by 2°C, by open the circuit of JX1 at

•

indoor electronic controller.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.5. 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 operat ion. The setting temperature will be risen by

•

operation and by The airflow volume will automatically change to Lo fan

•

speed. Sleep Mode operation time is8hours, the operation will be

•

stop after8hour. When used together with the Timer, the Timer has priority.

•

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 operat ion. 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.

•

0.5

°C one hour later .

Heating Operation

0.5

°C at the start of

8.6. Random Auto Restart Control

If there is a power failure, operation will be automatically restarted after 3 to 5 1/2 minutes when the power is resumed.

•

It will start with previous operation mode and airflow direction. Restart time is decided randomly using 4 param eter:-

•

Intake air temperature, setting temperature, fan speed and Air Swing Blade position. Auto Restart Control is not available when Timer or Sleep Mode is set.

•

This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.7. Indoor Fan Speed Control

Auto Fan Speed Control

•

When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table. Manual Fan Speed Control

•

Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button at the remote control.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.8. Airflow Direction Control

Vertical Airflow Direction Auto-Control

When set a Airflow Direction Auto-Control with remote

•

control, the louver swings up and down as shown in the diagram.

The louver does not swing when the Indoor Fan Motor

•

stops during operation at the upper limit. When stopped with remote control, the discharge vent is

•

reset, and stopped at the closing position. During Anti-dew condensation prevention, Airflow Direction

•

Auto-control angle change from 0° -36° to 12° -28° under Cooling and Soft Dry operation mode.

1. There is no swinging while indoor fan motor is stopped during Cooling and Soft Dry operation.

2. When the intake air temperature reaches 38°C, the louver is changed from upper to lower limit. When the intake air temperature falls to 35°C, the louver is changed from louver to upper limit.

Vertical Airflow Direction manua l Control

When the manual Airflow Direction Selection Button is

•

pressed, the automatic airflow is released and the airflow direction louver move up and down in the range shown in the diagram.

The louver can be adjusted by pressing the button to the desired louver position.

When the remote control is used to stop the operation, the

•

discharge vent is reset, and stopped at the closing position. During Anti-dew condensation prevention, Airflow Direction

•

Manual control angle change from 14°,19°,24°,30°,36° to 16°,18°,20°,22°,24° under Cooling and Soft Dry operation mode.

Horizontal Airflow Direction Auto-Control

When set a Airflow Direction Auto-Control with remote

•

control, the vanes swings left and right as shown in the diagram.

The vanes does not swing when the Indoor Fan Motor stops

•

during operation at 22° angle. When stopped with remote control, the discharge vent is

•

reset, and stopped at the reset position. During Anti-dew condensation prevention, Airflow Direction

•

Auto-control angle change from 0° -44° to 14° -30° under Cooling and Soft Dry operation mode.

1. There is no swinging while indoor fan motor is stopped during Cooling and Soft Dry operation.

2. In Heating operation, when the intake air temperature reaches set temperature, the airflow direction is Auto Swing left and right. When the intake air temperature falls to 2°C lower than set temperature, the airflow direction is stop at 22° angle.

Horizontal Airflow Direction manual Control

When the manual Airflow Direction Selection Button is

•

pressed, the automatic airflow is released and the airflow direction vane move left and right in the range shown in the diagram.

The louver can be adjusted by pressing the button to the desired vane position.

When the remote control is used to stop the operation, the

•

vanes is reset, and stopped at reset position. During Anti-dew condensation prevention, Airflow Direction

•

Manual control angle change from 0°,11°,22°,33°,44° to 14°,18°,22°,26°,30° under Cooling and Soft Dry operation mode.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.9. 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.

8.10. Remote Control Signal Receiving Sound

Long beep sound will be heard when:-

•

Stopping the Air Conditioner using ON/OFF switch.

−

Stopping the Sleep Mode.

−

Stopping the Powerful Mode.

−

Stopping the Economy Mode.

−

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-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.11. Economy Mode Operation

Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner. However consumer is advised to use Economy Mode operation after the room temperature reaches the desired temperature.

Cooling and Soft Dry Mode

1. When the Economy Mode is set, the set temperature will be automatically increased 0.5°C against the present setting

•

temperature. This operation automatically will be running under SLo Fan speed.

Vertical Airflow Direction:-

•

In “Manual” or “Auto” setting, the vane will automatically change to Auto Air Swing.

Heating Mode

2. When the Economy Mode is set, the temperature will be automatically decreased 0.5°C against the present setting

•

temperature.

The Fan Speed will shift as shown below:

•

Vertical Airflow Direction:-

•

In “Manual” or “Auto” setting, the vane will automatically change to Auto Air Swing.

Economy Mode will stop if:

3. Economy mode button is pressed again.

•

Stopped by ON / OFF switch.

•

Timer-off activates.

•

Powerful mode button is pressed.

•

Fan Speed control button is pressed.

•

Sleep mode button is pressed ON.

•

Operating mode is changed.

•

Air Swing condition is changed.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.12. Powerful Mode Operation

Purpose of this operation is to be obtain the setting temperature quickly.

Cooling and Soft Dry Mode

1. When the Powerful Mode is set, the set temperature will be automatically decreased 3°C against the present setting

•

temperature. This operation automatically will be running under SHi Fan Speed (Cooling), SLo Fan Speed (Soft Dry).

Vertical Airflow Direction:-

•

In “Manual” setting, the vane will automatically shift down 10°C lower than previous setting. In “Auto” setting, the vane will automatically swing up and down. However the upper and down. However the upper and

lower limit will be shifted 10° downward.

Heating Mode

2. When the Powerful Mode is set, the set temperature will be automatically increased 3°C against the present setting

•

temperature.

The Fan Speed will shift as shown below:

•

Vertical Airflow Direction:-

•

In “Manual” setting, the vane will automatically shift down 5°C lower than previous setting. In “Auto” setting, the vane will automatically shift between upper and lower limit depending on the intake air temperature as

Heating Mode, Airflow Direction Auto-Control. However the upper and lower limit will be shifted 5°C downward.

Powerful mode will operate for 15 minutes only.

Powerful Mode will stop if:

4. Powerful mode button is pressed again.

•

Stopped by ON / OFF switch.

•

Timer-off activates.

•

Economy mode button is pressed.

•

Sleep mode button is pressed.

•

Operating mode is changed.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

8.13. Soft starter (Applicable only for Australia market)

A. Purpose

To reduce starting current lower than 45A.

B. Basic Operation

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.

9 Operating Instructions

AUT

COOL

AUT

HEA

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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

● Do not expose directly to cold air for a long

● 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

● Do not sit or place anything on the outdoor

● Switch off the power supply before cleaning.

● Ventilate the room regularly.

● Pay attention as to whether the installation

● Switch off the power supply if the unit is not

Warning

pull out plug to stop the unit.

indoor or outdoor units. period.

occurs, switch off and unplug the power supply.

Caution

This sign warns of injury.

preservation. airflow direction. unit.

rack is damaged after long period of usage.

used for a long period.

NAME OF EACH PART

■ Indoor Unit

4576

1 Front Panel 2 Air Intake Vent 3 Power Supply Cord 4 Air Outlet Vent 5 Vertical Airflow Direction Louver 6 Horizontal Airflow Direction Louver 7 Indicator Panel

123 654

POWERFULPOWERFULECONOMYECONOMY POWERPOWER

1 Auto Operation Button

(when the front panel is opened)

2 Economy Mode Indicator – GREEN 3 Powerful Mode Indicator – ORANGE 4 Power Indicator – GREEN 5 Sleep Mode Indicator – ORANGE 6 Timer Mode Indicator – ORANGE

SLEEPSLEEP

● Indoor Unit

(when the front panel is opened)

1 Front Panel

■ Accessories

● Remote Control

A I R

Ste

H EC

T IM

C A

O C

B A T TE

R Y

● Remote Control Indication Sticker

(Europe & Argentina only)

A U

T O

E A

YFA

T O

F U

O D

OFF

E C

/ON

S L E

E P

N SPE

N C

E L

2 Air Filters 3 Air Purifying Filter

■ Outdoor Unit

TIMERTIMER

1 Air Intake Vents 2 Ground Terminal

(Inside cover)

3 Piping 4 Connecting Cable 5 Drain Hose 6 Air Outlet Vents

● Remote Control Holder

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

● Air Purifying Filter

(Catechin Air

Purifying Filter)

(Solar Refreshing Deodorizing Filter)

AUT

HEA

COOL

AUTO

AUTOHEAT

DRY

FAN

COOL

FAN

AUTO

RESET CLOCK

FAN SPEED

AIR SWING

OFF

CANCEL

SET

TIMER

HEA

COOL

AUT

AUT AN

AUT

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

NAME OF EACH PART

■ Remote Control

AUT

OHEA

T DRDRYFAN

COOL

AUTO

OFF

FAN

TEMP

POWERFUL

4 5

MODE

7 8

● 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.

OFF

CHECK

AIR SWING

RESET CLOCK

ECONOMY

TIMER

OFF/ON

SLEEP

FAN SPEED

SET

CANCEL

● How to Insert the Batteries

1 Signal Transmitter

2 Operation Display 3 Powerful Mode Operation Button 4 Room Temperature Setting Button

(self-illuminating button)

5 Operation Mode Selection Button

1.5V

6 Economy Mode Operation Button

$ %

^ & *

(

7 Vertical Airflow Direction Button 8 ON-Timer Button 9 OFF-Timer Button

0 Reset Point

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

! OFF/ON Button

(self-illuminating button)

@ Sleep Mode Operation Button # Fan Speed Selection Button $ Horizontal Airflow Direction Button % Timer Set Button

Slide down the remote control cover completely

Insert the batteries

– Be sure the direction is correct – 12.00 at display - flashing

• Set the current time (CLOCK) immediately to

prevent battery exhaustion.

● 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.

POWERFUL

^ Timer Cancellation Button & Time-Setting Button * Clock Button ( Remote Control Cover

PREPARATION BEFORE OPERATION

HOW T O OPERATE

■ Indoor Unit

1 Connect the power supply cord to an independent

power supply

2 Open the front panel 3 Remove the air filters 4 Fit the air purifying filters in place 5 Insert the air filters 6 Close the front panel

■ Remote Control

– To set the current time

3 5

■ 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:-

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

IR SW

POWERFUL

FF/O

ING

SLE

E P

Cooling Model

FAN

1 6 4

Heat Pump Model

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

1 Press 1. 2 Then press 2 to increase or decrease the time. 3 Press 1 again.

Set time at display will light up.

■ 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

Heat Pump Model

COOL – 26°C ~ 28°C DRY – 1°C ~ 2°C

lower than the room temperature

HEAT – 20°C ~ 24°C

• 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

Cooling Model

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.

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.

• The operation mode changes every hour, when necessary.

Operation

Cooling Soft Dry

Heat Pump Model

Operation

Cooling Soft Dry Heating

Standard

temperature

25°C 22°C

Standard

temperature

25°C 22°C 21°C

MODE

SLEEP

ECONOMY

FAN SPEED

AIR SWING

OFF

CANCEL

SET

TIMER

OFF/ON

POWERFUL

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

■ 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.

■ Setting the Vertical Airflow Direction.

• Press 5 to select:-

AUTO

• For COOL/DRY operation. Swing up/down automatically.

AUTO

• For HEAT operation (For Heat Pump Model only) When the discharge air temperature is low such as at the start of the 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.

• Press 6 to select:-

Indoor

Horizontal

Unit Airflow Direction

AUTO

Remote

Control

• For COOL/DRY operation. Swing left/right automatically.

• For HEAT operation (For Heat Pump Model only) There is no air swing during the discharge air temperature is low. When the temperature rises, the horizontal airflow louvers swing left/right automatically.

● 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

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 2.5 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

DBT

WBT

(-)

(24)

(18)

(-)

(-5)

(-6)

● 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)

• When the room temperature reaches the set temperature, operation commences at Low airflow volume. It stops when the room temperature drops to 2°C below the set temperature. (It is useful when using a heater).

SETTING THE TIMER

Ensure that the current time is correct before setting the timer. The timer cannot be set if the time display is flashing.

■ ON-TIMER Operation

To start the air conditioner operation automatically.

• Press 1 to set the operation.

• Press 2 to increase or decrease the time.

• Then press 3.

• To cancel this operation, press 4.

■ OFF-TIMER Operation

To stop the air conditioner operation automatically.

• Press 5 to set the operation.

• Press 2 to increase or decrease the time.

• Then press 3.

• To cancel this operation, press 4.

● Timer Mode Operation Details

• When the ON-Timer is set, operation will start before the actual set time. This is to enable the room temperature reaches the set temperature at the set time.

Cooling Model

COOL,DRY, – 15 minutes AUTO in advance

• Once the ON-Timer is set, operation will start at the set time everyday.

• The current time is not displayed when the timers are set.

• When both timers are used together, the TIMER mode indicator on the indoor unit remains lit even when the operation is stopped by the OFF-TIMER.

Heat Pump Model

COOL,DRY, – 15 minutes HEAT, AUTO– 30 minutes

in advance in advance

CONVENIENCE OPERATION

■ Sleep Mode Operation

To obtain a comfortable room temperature while sleeping:-

• Press 6.

• 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

Temperature

T e

t u r e

Sleep Operation button is pressed.

0~1 hour

Heat Pump Model

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. ← 1 hour → after approx. 8 hours of sleep shift

operation, it will stop automatically.

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.

■ Economy Mode Operation

To save electrical power consumption. Please use this mode when the room has reached your desired temperature.

• Press 7. * Economy mode indicator (green) on the indoor unit

• Press once more to cancel this operation.

■ Powerful Mode Operation

To obtain the set temperature quickly.

• Press 8.

* Powerful mode indicator (orange) on the indoor * Powerful mode will operate for 15 minutes only.

• To cancel this operation, press once more.

●

Economy / Powerful Mode Operation Details

• Economy and Powerful operation cannot be selected simultaneously.

• The changes of the temperature and airflow volume are automatic.

• The remote control display remains unchanged.

• If sleep button or operation mode button is pressed,

economy or powerful operation will be cancelled.

Time

• During FAN – Air circulation operation, the powerful and economy operation are not available. (cooling model only)

Economy Mode

COOL / DRY

(for Heat Pump

Powerful Mode

COOL / DRY

(for Heat Pump

will light up.

unit will light up.

Operation

HEAT

model only)

Operation

HEAT

model only)

Temperature

0.5°C higher

than set temp.

0.5°C lower

than set temp.

Temperature

3°C lower

than set temp.

3°C higher

than set temp.

Airflow

volume

Super Low

Automatic

Airflow

volume

Super High

Automatic

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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)

1 Remove dirt using a vacuum cleaner. 2 Wash back of the air filter with water. 3 If badly soiled, wash it with soap or a mild household

detergent.

4 Let it dry and reinstall it.

Be sure the “FRONT” mark is facing you. * Damaged air filter.

Consult the nearest authorized dealer. Part No.: CWD001049.

•

Do not use benzene, thinner, scouring powder or clothes soaked in caustic chemical to clean the unit.

■ Cleaning the Front Panel

(Must be removed before washing)

1 Raise the front panel higher than the horizontal and

pull to remove it.

2 Gently wash with water and a sponge.

• Do not press the front panel too hard when washing.

• When use kitchen cleaning fluid (neutral detergent),

rinse throughly.

• Do not dry the front panel under direct sunlight.

3 To fix the front panel, raise the front panel

horizontally, match the protruding portion on the indoor unit to the fulcrum and push into place.

Fulcrum

Protruding portion on indoor unit

■ Air Purifying Filters

Raise the

front panel

Solar Refreshing Deodorizing Filter

Catechin Air Purifying Filter

Remove the air filters

● Solar Refreshing Deodorizing Filter

• Used to remove unpleasant odour and deodorize the air in the room.

• Reusable.

• Vacuum, place under direct sunlight for 6 hours and

fit it back in place. (Recommended : every 6 months)

● Catechin Air Purifying Filter

• The filter is coated with catechin to prevent growth of bacteria and viruses.

• Reusable.

• Vacuum and fit it back in place

(Recommended : every 6 months)

• Recommended to change these filters every 3 years. Do not reuse damaged filters. Consult the nearest authorized dealer to purchase a new filter. Catechin Air Purifying Filter No.: CZ-SF70P Solar Refreshing Deodorizing Filter No.: CZ-SFD70P

• If you operate the air conditioner with dirty filters:- – Air is not purified – Cooling capacity decreases – Foul odour is emitted

■ Pre-season Inspection

● 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

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

outdoor units obstructed?

● Are the remote control batteries weak?

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

HEAT – 14°C or above

■ When the Air Conditioner is Not Used

for an Extended Period of Time

1 To dry the internal parts of the indoor unit, operate

the unit for 2 - 3 hours using:-

Cooling Model

FAN operation

Heat Pump Model

COOL operation with 30°C

2 Turn off the power supply and unplug.

3 Remove the remote control batteries.

■ Recommended Inspection

• After used over several seasons, the unit will

set temperature

Note: If the unit is not switched off by the remote control, it will start operating when you plug in (because the unit is equipped with Auto Restart Control).

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).

HELPFUL INFORMATION

■ Auto Operation Button

POWERFULPOWERFULECONOMYECONOMY POWERPOWER

• Raise the front panel and press.

● 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.

● Remote Control Signal Receiving Sound

• To switch off the beep (Signal Receiving Sound), press the Auto Operation button for 10 seconds continuously or longer. “Beep”, “beep” sound will be heard at the tenth seconds. Note: “Beep” sound will be heard at the fifth

seconds; However please press continuously until you heard “beep”, “beep” sound.

• Repeat the above steps if you want to switch on the Signal Receiving Sound.

● (This is for Servicing purposes only.)

Note: If you press this button continuously for 5 to 10 seconds, Test Run operation will be performed. A “beep” sound will be heard at the fifth seconds indicating the Test Run starts to operate.

SLEEPSLEEP

TIMERTIMER

SLEEPSLEEP

TIMERTIMER

■ Auto Restart Control

• If power is resumed after a power failure, the operation will restart automatically after 3 - 5 1/2 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.

■ 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.

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 and Air Purifying Filters

• Clean the air filters every 2 weeks and the Air Purifying Filters every 6 months.

• 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.

• During Automatic Fan Speed setting,

indoor fan stops occasionally.

• The outdoor unit emits water or steam.

• (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.

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.

• This is to remove smell emitted by the surroundings.

• 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 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?

• Is the front grille closed properly?

• 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?

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

■ 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-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

10 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

7. Reamer 11. Thermometer 15. Vacuum pump

10.1. Safety Precautions

•

Read the following “SAFETY 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.

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

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 injury or damage to properties only.

The items to be followed are classified by the symbols:

Symbol with background white denotes item that is PROHIBITED 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 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, the set will drop and cause injury.

5. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independen t 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 (2.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable 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 .

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, take care not to let air 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. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.

10. 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.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

1. The 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. 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 receptacle using a power plug.

Use an approved 16A power plug with earth pin for 2.0HP (C18BK, A18BK, V18BK, W18BK) and 20A for 2.5HP (C24BK, A24BK, XC24BK, V24BK, W24BK) for the connection to the receptacle.

2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker 2.0HP (C18BK,

A18BK, V18BK, W18BK) and 20A for 2.5HP (C24BK, A24BK, XC24BK, V24BK, W24BK) 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, reinstallation 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.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Attached accessories

Piping size Rated

Model Gas Liquid

C18BK,

V18BK

C24BK, V24BK,

XC24BK

A18BK, W18BK

A24BK,

W24BK Example: For A24BK If the unit will be installed at a 10m distance, the quantity of

additional refrigerant should be 75g...(10 - 7.5)m × 30g/m = 75g

1/2” 1/4” 5 20 25 20

5/8” 1/4” 5 20 25 30

1/2” 1/4” 5 20 25 20

5/8” 1/4” 5 20 25 30

Length

(m)

Max.

Elevation

(m)

Max.

Piping

Length

(m)

Additional

Refrigerant

(g/m)

Indoor/Outdoor Unit Installation Diagram

Applicable piping kit CZ-4F5, 7, 10AN (C18BK, A18BK, V18BK, W18BK) CZ-52F5, 7, 10AN (C24BK, A24BK, XC24BK, V24BK, W24B K)

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. Recommended installation height for indoor unit shall be

•

at least 2.3 m.

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 indicated 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 7.5m, additional refrigerant

•

should be added as shown in the table.

This illustration is for explanation purposes only.

•

The indoor unit will actually face a different way.

10.2. INDOOR UNIT

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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

10.2.2. HOW TO FIX INSTALLATION PLATE

The mounting wall is strong and solid enough to prevent it from the vibration.

10.2.3. 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.

The centre of installation plate should be at more than 550 mm at right and left of the wall.

The distance from installation plate edge to ceiling should more than 67 mm.

From installation plate left edge to unit’s left side is 47 mm. From installation plate right edge to unit’s right is 73 mm.

For left side piping, piping connection for liquid should be about 126 mm from this line.

For left side piping, piping connection for gas should be about 174 mm from this line.

For left side piping, piping connecting cable should be about 984 mm from this line.

1. Mount the installation plate on the wall with 5 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.

Line according to the arrows marked on the lower left

•

and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively.

Drill the piping hole at either the right or the left and the

•

hole should be slightly slanted to the outdoor side.

10.2.4. INDOOR UNIT INSTALLATION

For the right rear piping

For the right and right bottom piping

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

For the embedded piping

(This can be used for left rear piping & left bottom piping also.)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

10.2.5. CONNECT THE CABLE TO THE INDOOR UNIT

1. The inside and outside connecting cable can be connected

without removing the front grille.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 3 (C18BK, C24BK, XC24BK, V18BK, V24BK) or 5 (A18BK, A24BK, W18BK, W24BK) × 2.5 mm 245 IEC 57 or heavier cord.

Ensure the color of wires of outdoor unit and the

•

terminal Nos. are the same to the indoor’s respectively. Earth lead wire shall be longer than the other lead wires

•

as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.

flexible cord, type designation

Secure the cable onto the control board with the holder

•

(clamper).

INSTALLATION OF AIR PURIFYING FILTERS

1. Open the front panel.

2. Remove the air filters.

3. Put air purifying filters (left) and solar refreshing deodorizing

filter (right) into place as shown in illustration below.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille if necessary such as when servicing.

1. Set the vertical airflow direction louver to the horizontal position.

2. Slide down the three caps on the front grille asshown in the illustration below, and then remove the three mounting screws.

3. Pull the lower section of the front grille towards you to remove the front grille.

When reinstalling the front grille, first set the vertical airflow direction louver to the horizontal position and then carry out above steps 2 - 3 in the reverse order.

10.3. OUTDOOR UNIT

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

10.3.2. INSTALL THE OUTDOOR UNIT

After selecting the best location, start installation according

•

to Indoor/Outdoor 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 and

earthquake. Please fasten the installation stand firmly with bolt or nails.

AUTO SWITCH OPERATION

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

change 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.

10.3.3. CONNECTING THE PIPING

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portion of tube assembly) 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 in specified

•

torque as stated in the table.

MODEL Piping size (Torque)

Gas Liquid

C18BK, A18BK

V18BK, W18BK

C24BK, A24BK, XC24BK,

V24BK, W24BK

1/2” (55 N.m) 1/4” (18 N.m)

5/8” (65 N.m) 1/4” (18 N.m)

Connecting The Piping To Outdoor Unit

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe.

Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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.

10.3.4. (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.

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 of both the Low and High sides of 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 FOLLOW 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 the 3-way valve at a torque of 18 N.m with a torque wrench.

7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal

wrench (4 mm).

8. Mount valve caps onto the 2-way valve and the 3-way valve. 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.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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

1) Checking a gas leakage.

1. Remove the service-port cap from the 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 gas-leakage of the connecting portion of pipings with the gas-leak detector.

<For the left pipings>.

1) Measure the pressure.

2) Keep it for 5-10 minutes Ensure if the pressure indicated on the gauge is as same as that of measured at first time

•

2) Air purging The air remaining in the Refrigeration cycle which contains

moisture may cause malfunction on the Compressor.

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

Repeat this for three times.

•

2. To balance the refrigerant, close the low pressure side valve on the Manifold gauge and release refrigerant from the piping through service port until the gauge indicates 0.5 - 0.3 MPa.

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

10.3.6. 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 (C18BK, C24BK, XC24BK, V18BK, V24BK) or 5 (A18BK, A24BK, W18B K, W24BK) × 2.5 mm heavier cord.

flexible cord, type designation 245 IEC 57 or

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.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

10.3.7. PIPE INSULATION

1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.

2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

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.

EVALUATION OF THE PERFORMANCE

Operate the unit at cooling operation mode for fifteen

•

minutes or more. Measure the temperature of the intake and discharge air.

•

Ensure the difference between the intake temperature and

•

the discharge is more than 8°C.

NOTE:

These equipment shall be connected to a suitable mains network with a main impedance less than the following: CS / CU-C18BKP5: 0.20 CS / CU-A18BKP5: 0.20 CS / CU-C24BKP5: 0.12 CS / CU-A24BKP5: 0.14

Ω Ω Ω Ω

CHECK THE DRAINAGE

Open front panel and remove air filters.

•

(Drainage checking can be carried out without removing the front grille.)

Pour a glass of water into the drain tray-styrofoam.

•

Ensure that water flows out from drain hose of the indoor

•

unit.

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 being clamped firmly?

Is the drainage OK? (Refer to “Check the drainage” section)

Is the earth wire connection properly done?

Is the indoor unit properly hooked to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the cooling operation normal?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

Is the air purifying filter installed?

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11 3-way Valve

Works Shaft Position Service Port Shaft Position Service Port

Shipping Closed Closed Closed Close

3-way Valve (Liquid Side) 3-way Valve (Gas Side)

(With valve cap) (With cap) (With valve cap) (With cap)

(Installation and Closed Open Closed Open

Re-installation) (Clockwise) (Connected manifold (Clockwise) (Push-pin)

gauge w/charging cylinder)

Operation Open Closed Open Closed

(With valve cap) (With cap) (With valve cap) (With cap)

Pumping down Closed Closed Open Open

(Transferring) (Clockwise) (With cap) (Counter-Clockwise) (Connected manifold

Evacuation Open Open Open Open (Servicing) (Counter-clockwise) (Connected manifold

gauge)

Gas charging Open Open Open Open

(Servicing) (Counter-clockwise) (Connected manifold

gauge)

Pressure check Open Closed Open Open

(Servicing) (Counter-clockwise) (With cap) (Counter-clockwise) (Connected manifold

(Counter-clockwise) (Connected manifold

gauge)

Gas releasing Open Open Open Open

(Servicing) (Counter-clockwise) (Connected manifold

gauge)

(Counter-clockwise) (Connected manifold

gauge)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.1. Evacuation of the Equipment (For Europe & Oceania Destination)

11.1.1. Evacuation of the Installation

When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure.

Required tools: Hexagonal wrench, adjustable wrench,

torque wrenches, wrench to hold the joints, gas leak detector, and charging set.

The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration pipings, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction.

Service port cap Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage from

the refrigeration cycle.

Procedure:

Connect a charging hose with a push pin to the Low

and High sides of a charging set and the service ports of a 3-way valves.

Be sure to connect the end of the charging hose with the

•

push pin to the service port.

Connect the centre hose of the charging set to a

vacuum pump. Turn on the power switch of the vacuum pump and

make sure that the needle in the gauge moves from 0

Disconnect the charging hose from the vacuum pump

and from the service ports of the 3-way valves. Tighten the service port caps of both the 3-way valves

at a torque of 18 N.m with a torque wrench. Remove the valve caps of both the 3-way valves.

Position both of the valves to “open” using a hexagonal wrench (4 mm).

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

8. Be sure to check for gas leakage.

•

cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuate the air for approximately 10 minutes.

Close the valve of both the Low adn High sides of the

charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately 5 minutes.

BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT 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 measures:

If the leaks stop when the piping connections are tightened further, continue working from step (3).

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

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.1.2. Pumping down

Procedure:

Confirm that both the 3-way valves are set to the open

position.

Remove the valve stem caps and confirm that the valve

•

stems are in the open position. Be sure to use a hexagonal wrench to operate the valve

•

stems.

Operate the unit for 10 to 15 minutes.

Stop operation and wait for 3 minutes, then connect the

charge set to the service port of the 3-way valve.

Connect the charge hose with the push pin to the Gas

•

side service port.

Air purging of the charge hose.

4. Open the low-pressure valve on the charge set slightly

•

to purge air from the charge hose.

Set the Liquid side 3-way valve to the close position.

Operate the air conditioner at the cooling cycle and

stop it when the gauge indicates 0 kg/cm

If the unit cannot be operated at the cool condition

•

G (0 MPa).

(weather is rather cool), press the Pump Down Switch on the Indoor unit.

So that the unit can be operated.

•

Immediately set the gas side 3-way valve to the close

position.

Do this quickly so that the gauge ends up indicating 1 to

•

3 kg/cm

Use refrigerant reclaiming equipment to collect

G (0.1 MPa to 0.3 MPa)

refrigerant from indoor unit and pipes.

Disconnect the charge set, and mount both the 3-way

valve’s stem nuts and the service port caps.

Use a torque wrench to tighten the service port cap to a

•

torque of 18 N.m. Be sure to check for gas leakage.

•

Disconnect pipes from indoor unit and outdoor unit.

10.

11.1.3. Evacuation of Re-installation

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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

If air remains in the indoor unit and refrigeration pipes, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction.

Procedure:

Connect a charging hose with a push pin to the Low

and High sides 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.

Connect the centre hose of the charging set to a

vacuum pump. 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 for approximately 10 minutes.

Close the valve of both Low side and High side of the

charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately 5 minutes.

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

Disconnect the charging hose from the vacuum pump.

Charge the pipes and indoor unit with gas refrigerant

from liquid (High) side 3-way valve service port and then discharge the refrigerant until gas side (Low) side gauge needle indicates 3 kg/cm

(0.3 MPa).

BE SURE TO USE REFRIGERANT RECLAIMING

•

EQUIPMENT WHILE DISCHARGING THE REFRIGERANT.

Purge the air from charge set’s centre hose.

•

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 measures:

If the leaks stop when the piping connections are tightened further, continue working from step 3.

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

Tighten the service port caps of both the 3-way valves

at a torque of 18 N.m with a torque wrench. Remove the valve caps of both the 3-way valves.

Position both of the valves to “open” using a hexagonal wrench (4 mm).

Mount valve caps onto the 3-way valves.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.1.4. Balance refrigerant of the 3-way valves

(Lack of refrigerant in the refrigeration cycle)

Procedure:

Confirm that both the 3-way valves are set to the

opened position.

Connect the charge set to the 3-way valve’s service

port.

Leave the valve on the charge set closed.

•

Connect the charge hose with the push-pin to the

•

service port. Confirm whether the pressure indicates more than 0.1

•

MPa (1 kg/cm

Connect the charge set’s centre hose to refrigerant

G).

reclaiming equipment.

Open the valve (Low side) on the charge set and loosen

the hose connected with the Refrigerant Reclaiming Equipment to purge the air from the hose.

Turn on refrigerant reclaiming equipment to collect the

refrigerant until the needle indicates 0 (no refrigerant is remaining).

11.1.5. Evacuation

(No refrigerant in the refrigeration cycle)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Procedure:

Connect the vacuum pump to the charge set’s centre

hose.

Turn on the vacuum pump to evacuate the unit.

2. Confirm that the gauge needle has moved toward -76

•

cmHg (-0.1 MPa). Apply the vacuum for approximately 1 hour (vacuum of

•

4 mmHg or less).

Close the valves (Low side and High side) on the

charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after the vacuum pump is turned off).

Disconnect the charge hose from the vacuum pump.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.1.6. Gas charging

(After Evacuation)

Procedure:

Connect the charge hose to the charging cylinder.

1. Connect the charge hose which you disconnected from

•

the vacuum pump to the valve at the bottom of the cylinder.

Purge the air from the charge hose.

2. Open the valve at the bottom of the cylinder and use a

•

screwdriver to press the check valve on the charge set to purge the air (be careful of the liquid refrigerant).

Open the High side on the charge set and charge the

refrigerant to the unit.

Be sure to open only the High side valve on the charge

•

set to charge the system from the liquid-side (highpressure) pipe. (If the system cannot be charged with the specified amount of refrigerant, operate the compressor until the specified amount can be charged, and then close the valve at the bottom of the charge cylinder.)

Immediately disconnect the charge hoses from both 3-

way valve service ports.

Mount the valve stem nuts and the service port caps

onto the 3-way valves.

Use torque wrench to tighten the service port caps to a

•

torque of 18 N.m. Be sure to check for gas leakage.

•

11.2. Air Purging of the Piping and Indoor Unit

11.2.1. Air purging

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Required tools: Hexagonal wrench, adjustable wrench,

torque wrenches, wrench to hold the joints, gas leak detector, and charging set.

The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction.

Service port cap Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage from

the refrigeration cycle.

Procedure:

Recheck the piping connections.

Open the valve caps and service port caps for both

3-way valves. Connect the charging cylinder to the manifold gauge as

shown above. Open the valve of the low pressure side of manifold

gauge counterclockwise for 10 seconds, and then close i

Check for gas leakage.

5. Check the flare connections for gas leakage.

•

Purge the air from the system.

6. Open the Low pressure side valve of the manifold

•

gauge. Press the service port pin with the hexagonal wrench to

•

purge the air for three seconds and then wait for one minute. Repeat this three times or more.

Balance the refrigerant in the pipings and the indoor

Use torque wrench to tighten the service port cap to a

torque of 18 N.m. Set the both 3-way valves to the open position.

Mount the valve caps to the 3-way valves.

10.

Check for gas leakage.

11. At this time, especially check for gas leakage from the

•

both 3-way valve’s caps, and from the service port caps.

Caution

If gas leakage is discovered in step (3) above, take the following measures:

a. Re-tighten the connecting portion with torque

wrenches. If the leakage ceases, continue the works from

step (4).

b. Locate and repair the leak. (Gas leak detector)

Repeat the works from step (1).

unit.

Close the Low pressure side valve of the manifold

•

gauge. Press the service port pin with the hexagonal wrench to

•

release the refrigerant until the gauge indicates 0.1 to

0.3 MPa.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.2.2. Pumping down

Procedure:

Confirm that both the 3-way valves are set to the open

position.

Remove the valve caps and confirm that the valve caps

•

are in the raised position. Be sure to use a hexagonal wrench to operate the valve

•

stems.

Operate the unit for 10 to 15 minutes.

Stop operation and wait for 3 minutes, then connect the

manifold gauge to the service port of the 3-way valve as shown above.

Connect the manifold gauge to the gas side service

•

port.

Air purging of the charge hose.

4. Open the Low pressure side valve of manifold gauge

•

slightly to purge air from the charge hose.

Set the liquid side (High side) 3-way valve to the close

position.

Operate the air conditioner at the cooling cycle and

stop it when the gauge indicates 0.1 MPa.

If the unit cannot be operated at the cooling (weather is

•

rather cool), press the Pump Down switch on the Indoor unit.

So that the unit can be operated.

•

Immediately set the gas side (Low side) 3-way valve to

the close position.

Do this quickly so that the gauge ends up indicating 0.1

•

0.3 MPa.

Disconnect the manifold gauge, and mount both the

3-way valve’s caps and the service port caps.

Use torque wrench to tighten the service port nut to a

•

torque of 18 N.m. Be sure to check for gas leakage.

•

11.2.3. Re-air purging

(Re-installation)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Procedure:

Remove the cap nut from 3-way valves.

1. Remove the cap nut from 3-way valves after carefully

•

checked whether the piping connection was properly and certainly done.

Confirm that valve in both 3-way valves are set to the

CLOSE.

Connect the gas cylinder to the liquid-side (high-

pressure) 3-way valve and the charge set to the gas side (low-pressure) 3-way valve.

Remove the flare nut from the service ports to connect

•

the manifold gauge and gas cylinder. Close the valves on the gas cylinder and manifold

•

gauge.

Air purging.

4. Open the valve on the gas cylinder.

•

Open the valve on the manifold gauge, discharge for

•

three seconds and wait for one minute. Repeat this three times.

Check for gas leakage.

5. Check the flare connections for gas leakage.

•

Discharge the refrigerant.

6. Close the valve on the gas cylinder and discharge the

•

refrigerant until the gauge indicates 0.1 to 0.3 MPa.

Disconnect the manifold gauge and gas cylinder.

Mount the valve caps and the service port caps onto the

3-way valves.

Be sure to use a torque wrench to tighten the service

•

port nut. Be sure to check for gas leakage.

•

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.2.4. Balance refrigerant of the 3-way valves

Procedure:

Confirm that both the 3-way valves are set to the open

position.

Connect the manifold gauge to the gas side (Low side)

3-way valve’s port.

Leave the valve on the manifold gauge closed.

•

Connect the manifold gauge to the service port.

•

Open the valves (Low side) on the manifold gauge and

discharge the refrigerant until the gauge indicates 0.1 MPa .

If there is no air in the refrigeration cycle [the pressure

•

when the air conditioner is not running is higher than

MPa

]. If this is the case, it will not be necessary to apply

a evacuation. Discharge the refrigerant gradually; if it is discharged

•

too suddenly, the refrigeration oil will also be discharged.

0.1

11.2.5. Evacuation

(No refrigerant in the refrigeration cycle)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Procedure:

Connect the vacuum pump to the manifold gauge’s

centre hose.

Evacuation for approximately one hour.

2. Confirm that the gauge needle has moved toward -0.01

•

MPa.

Close the valve (Low side) on the manifold gauge, turn

off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).

Disconnect the manifold gauge from the vacuum pump.

4. Vacuum pump oil.

•

If the vacuum pump oil becomes dirty or depleted, replenish as needed.

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

11.2.6. Gas charging

(After Evacuation)

Procedure:

Connect the charge hose to the gas charging cylinder.

1. Connect the charge hose which you disconnected from

•

the vacuum pump to the valve at the bottom of the cylinder.

Purge the air from the charge hose.

2. Open the valve at the bottom of the cylinder and press

•

the check valve on the charge set to purge the air. (Be careful of the liquid refrigerant). The procedure is the same if using a gas cylinder.

Open the valve (Low side) on the charge set and charge

the system with liquid refrigerant.

If the system cannot be charged with the specified

•

amount of refrigerant, it can be charged with a little at a time (approximately 150g each time) while operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approximately 1 minute and then repeat the procedure. (pumping down-pin)

Immediately disconnect the charge hose from the

3-way valve’s service port.

Stopping partway will allow the refrigerant to be

•

discharged. If the system has been charged with liquid refrigerant

•

while operating the air conditioner, turn off the air conditioner before disconnecting the hose.

Mount the valve caps and the service port caps.

5. Use a torque wrench to tighten the service port nut.

•

Be sure to check for gas leakage.

•

12 Servicing Information

12.1. Indoor Electronic Controllers Removal Procedures

1. The Electronic Controller, a Signal Receiver and an Indicator (Fig. 3) can be seen by the below steps:

Open the Intake Grille and remove the screw at the front

•

of the Front Grille. (Fig. 1). Remove the 3 caps and 3 screws at the bottom of the

•

Front Grille. (Fig. 1) Remove the Front Grille by releasing the 3 hooks at the

•

top of the Front Grille. (Fig. 1)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Fig. 1

Unhook the tabs at the Control Board to remove the

•

Control Board Cover. (Fig. 2)

2. To remove the Electronic Controllers:

Release the 2 Particular Piece. (Fig. 3)

•

Release the CN-REC/DISP connectors. (Fig. 4)

•

Release the CN-TH connector. (Fig. 4)

•

Release the CN-MAIN connector. (Fig. 4)

•

Release the CN-001 connector. (Fig. 4)

•

Release the CN-002 connector. (Fig. 4)

•

Release the CN-STM1 connector. (Fig. 4)

•

Release the CN-STM2 connector. (Fig. 4)

•

Release the hooks that hold the Electronic Controller.

•

(Fig. 3)

Fig. 2

Fig. 3

Fig. 4

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

12.2. Cross Flow Fan Indoor and Fan Motor Removal Procedures

1. In order to remove the Cross Flow Fan and Indoor Fan Motor, Control Board need to be taken out by releasing all the connectors as indicated below.

a. Release the Earth Wire screw. (Fig. 5) b. Release the Intake Air Sensor. (Fig. 5) c. Release the Piping Sensor. (Fig. 5) d. Release the CN-REC/DISP connectors. (Fig. 5) e. Release the CN-STM1 connector. (Fig. 5)

Fig. 5

2. Pull out the Drain Hose from outlet to remove the Discharge Grille. (Fig. 6)

3. Removing the right and left screws. (Fig. 7)

4. By pressing down the hook at the left and pushing up the hook at the right, you will be able to remove the Control Board. (Fig. 7)

5. Remove the screw at the Cross Flow Fan. (Fig. 8)

Fig. 6

Fig. 7

Fig. 8

6. Remove the Bearing. (Fig. 9)

7. Remove the screws at the left of the Evaporator. (Fig. 9)

8. Push up the Evaporator and pull out the Cross Flow Fan from shaft. By then, Fan Motor can be taken out. (Fig. 10).

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

Fig. 9

REMINDER - To reinstall the Fan Motor, put it back in place, adjust the position of the Fan Motor’s leadwire appropriately as shown in the Fig. 8 0before installing the Cross Flow Fan.

Fig. 10

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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, remove the cover of the remote control and 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 (J - A) 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).

13 Troubleshooting Guide

13.1. 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-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

13.1.1. 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.

13.1.2. 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.

14 Technical Data

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

240V Outdoor Temp. (°C)

Indoor wet bulb temp.

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

17.0°C 5.26 3.99 1.66 4.91 3.82 1.78 4.57 3.67 1.91 4.16 3.49 2.06

19.0°C 5.30 1.81

19.5°C 5.77 4.17 1.69 5.40 4.01 1.82 5.02 3.86 1.94 4.56 3.67 2.10

22.0°C 6.29 4.33 1.72 5.88 4.16 1.85 5.47 4.01 1.98 4.97 3.83 2.13 230V Outdoor Temp. (°C)

Indoor wet bulb temp.

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

17.0°C 5.26 3.99 1.61 4.91 3.82 1.73 4.57 3.67 1.86 4.16 3.49 2.00

19.0°C 5.30 1.76

19.5°C 5.77 4.17 1.64 5.40 4.01 1.77 5.02 3.86 1.89 4.56 3.67 2.04

22.0°C 6.29 4.33 1.67 5.88 4.16 1.80 5.47 4.01 1.92 4.97 3.83 2.08 220V Outdoor Temp. (°C)

Indoor wet bulb temp.

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

17.0°C 5.26 3.99 1.58 4.91 3.82 1.69 4.57 3.67 1.81 4.16 3.49 1.96

19.0°C 5.30 1.72

19.5°C 5.77 4.17 1.60 5.40 4.01 1.73 5.02 3.86 1.85 4.56 3.67 1.99

22.0°C 6.29 4.33 1.63 5.88 4.16 1.76 5.47 4.01 1.88 4.97 3.83 2.03

30 35 40 46

240V 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 6.62 5.02 2.63 6.18 4.81 2.83 5.75 4.62 3.02 5.23 4.39 3.26

19.0°C 6.67 2.87

19.5°C 7.26 5.25 2.68 6.79 5.05 2.88 6.32 4.86 3.08 5.74 4.62 3.32

22.0°C 7.92 5.45 2.73 7.40 5.24 2.93 6.88 5.05 3.14 6.26 4.82 3.38 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 6.62 5.02 2.56 6.18 4.81 2.76 5.75 4.62 2.95 5.23 4.39 3.18

19.0°C 6.67 2.80

19.5°C 7.26 5.25 2.61 6.79 5.05 2.81 6.32 4.86 3.01 5.74 4.62 3.24

22.0°C 7.92 5.45 2.66 7.40 5.24 2.86 6.88 5.05 3.06 6.26 4.82 3.30 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 6.79 5.14 2.38 6.34 4.93 2.56 5.90 4.74 2.74 5.36 4.50 2.96

19.0°C 6.84 2.60

19.5°C 7.45 5.39 2.43 6.96 5.17 2.61 6.48 4.98 2.79 5.89 4.74 3.01

22.0°C 8.12 5.59 2.47 7.59 5.37 2.66 7.06 5.18 2.84 6.42 4.94 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)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

15 Exploded View

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

16 Replacement Parts List

<Model: CS-A18BK / CS-A24BK>

REF. NO. PART NAME & DESCRIPTION QTY. CS-A18BK CS-A24BK REMARKS

1 CHASSY COMPLETE 1 CWD50C1178 2 FAN MOTOR 1 CWA981056 3 CROSS FLOW FAN COMPLETE 1 CWH02C1010 4 SCREW - CROSS FLOW FAN 1 CWH4580304 5 BEARING ASS’Y 1 CWH64K007 6 EVAPORATOR 1 CWB30C1125 CWB30C1129 7 FLARE NUT 1 CWH6002140 (1/4”) 8 FLARE NUT 1 CWT25007 (1/2”) CWT25004 (5/8”)

9 INTAKE AIR SENSOR HOLDER 1 CWH32142 10 DISCHARGE GRILLE COMPLETE 1 CWE20C2102 11 VERTICAL VANE 16 CWE241088 12 CONNECTING BAR 1 CWE261025 13 AIR SWING MOTOR 1 CWA98260 14 AIR SWING MOTOR 1 CWA981041 15 LEAD WIRE - AIR SWING MOTOR 1 CWA67C3731 16 HORIZONTAL VANE 1 CWE241072 17 CAP - DRAIN TRAY 1 CWH52C1001 18 PARTICULAR PIECE 1 CWD932162 19 CONTROL BOARD 1 (1)

20 TERMINAL BOARD COMPLETE 1 CWA28C2066 CWA28C2070 0 21 POWER SUPPLY CORD 1 (1)

22 ELECTRONIC CONTROLLER - MAIN 1 CWA742661 CWA742496 0 23 ELECTRONIC CONTROLLER - POWER 1 CWA742616 24 LEAD WIRE - FAN MOTOR 1 CWA67C3732 CWA67C3733 25 P.C.B. RECEIVER 1 CWA73C1124 26 ELECTRONIC CONTROLLER - INDICATOR 1 CWE39C1046 27 LEAD WIRE - INDICATOR 1 CWA67C3724 28 INDICATOR HOLDER 1 CWD932163 29 SENSOR COMPLETE 1 CWA50C608 30 CONTROL BOARD TOP COVER 1 CWH131091 31 CONTROL BOARD FRONT COVER 1 CWH131090 32 REMOTE CONTROL COMPLETE 1 CWA75C2189 33 FRONT GRILLE COMPLETE 1 CWE11C2330 34 INTAKE GRILLE 1 CWE221037 35 GRILLE DOOR 1 CWE141033 36 CONTROL PANEL 1 CWE312114 37 DECORATION BASE (R) 1 CWE351067 38 DECORATION BASE (L) 1 CWE351068 39 AIR FILTER 2 CWD001049 40 SCREW - FRONT GRILLE 3 XTT4+16C 41 CAP - FRONT GRILLE 3 CWH521062 42 DRAIN HOSE 1 CWH85287 43 AIR PURIFYING FILTER 1 CWMD00C0001 44 SOLAR DEODORIZING FILTER 1 CWMD00C0002 45 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C067 46 INSTALLATION PLATE 1 CWH36K1007

(2) (3) (4)

CWH102103 CWH102103A CWH102103 CWH102103

CWA20C2163 CWA20C2163 CWA20C2215 CWA20C2163

← ← ← ← ←

←

← ← ← ← ← ← ← ← ← ← ←

← ← ←

CWA20C2164 CWA20C2164 CWA20C2216 CWA20C2164

←

← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ←

0 0

(Note)

All parts are supplied from MACC, Malaysia (Vendor Code: 086).

•

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

•

(1) — CS-A18BKP, CS-A24BKP (Europe).

•

(2) — CS-A18BKP-2, CS-A24BKP-2 (Oceania).

•

(3) — CS-A18BKP-3, CS-A24BKP-3 (Argentina).

•

(4) — CS-A18BKP-6, CS-A24BKP-6 (Turkey).

•

17 Exploded View

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

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-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

18 Replacement Parts List

<Model: CU-A18BK / CU-A24BK>

REF. NO. PART NAME & DESCRIPTION QTY. CU-A18BK CU-A24BK REMARKS

1 CHASSY ASS’Y 1 CWD50K514B 2 SOUND PROOF BOARD 1 CWH15223 3 FAN MOTOR BRACKET 1 (1)

4 SCREW - FAN MOTOR BRACKET 4 CWH55027 5 FAN MOTOR 1 CWA921080 CWA921081 0 6 SCREW - FAN MOTOR MOUNT 4 CWH55252 7 PROPELLER FAN ASS’Y 1 CWH00K1001 8 NUT - PROPELLER FAN 1 CWH56060

9 COMPRESSOR 1 2JS318D3CB02 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 (1)

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 CWT01C2390 CWT01C2392 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 DS371456CPNA DS371506CPNA 0 26 HOLDER CAPACITOR 1 CWH30060 27 TERMINAL BOARD ASS’Y 1 CWA28K216 28 ELECTRONIC CONTROLLER 1 CWA742770 CWA742754 29 ELECTRONIC CONTROLLER 1 CWA742771 CWA742698 30 SENSOR COMPLETE 1 CWA50C618 31 HOLDER - SENSOR 1 (1)

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 (1)

40 INSTALLATION INSTRUCTIONS (ENGLISH,

41 INSTALLATION INSTRUCTIONS (ITALIANO,

42 INSTALLATION INSTRUCTIONS (RUSSIA) 1 (1)

43 PARTICULATE PLATE 1 CWD90830

FRANCAIS, ESPANOL & DEUTSCH)

NEDERLANDS, PORTUGUES & GREEK)

1 CWF612190

1 (1)

(2) (3) (4)

CWD54238 CWD54237 CWD54237 CWD54238

CWH35K029B CWH35K029B CWH35K029B CWH35K029B

CWH32089 CWH32089 CWH32089 CWH32082

CWF563300 CWF563412 CWF563413 CWF563431

CWF612222

CWF612223

← ←

CWD54237

← ←

CWD54237

←

← ← ←

← ← ← ← ← ←

←

CWH35K030B

← ←

← ← ← ← ←

← ←

CWH32089

← ← ← ← ← ← ← ←

← ← ←

←

(Note)

All parts are supplied from MACC, Malaysia (Vendor Code: 086).

•

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

•

(1) — CU-A18BKP5, CU-A24BKP5 (Europe).

•

(2) — CU-A18BKP5-2, CU-A24BKP5-2 (Oceania).

•

(3) — CU-A18BKP5-3, CU-A24BKP5-3 (Argentina).

•

(4) — CU-A18BKP5-6, CU-A24BKP5-6 (Turkey).

•

19 Electronic Circuit Diagram

• CS-A18BK / CU-A18BK

• CS-A24BK / CU-A24BK

SCHEMATIC DIAGRAM 1/3

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

BLU

ELECTRONIC

CONTROLLER

RED

BLU BLU

CAPACITOR

TEMPERATURE

FUSE

YLW

BLK

(BRW)

ZNR3

FM1

COIL

BLK

(4-WAYS V ALVE)

RY-HOT

1 2 3

CN-TH (WHT)

Fig. 4

VLT

TF 1

TF 2

WHT

COMP (VLT)

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

FUSE

C13

(T 3. 15A L 250V)

ZNR2

ZNR4

FM2

(ORG)

FAN MOTOR

RED

ORG

BRW or YLW

GRY

RY-DEICE

RY-OFF

RY-H/L

WHT

COMPRESSOR

SENSOR

BLU

CAPACITOR

(AIR TEMP.)

(PIPE TEMP.)

TO OUTDOOR

RED

Fig. 3

POWER SUPPLY

ELECTRONIC CONTROL UNIT

PC01 TLP620

C16 0.01µ

R51 47k

RY-HOT

FUSE 01

C13

0.01µ

C22

0.01µ

R58 10k

R59 1k

R68 10k

4 3 2 1

BLK AC02

(BLK)

WHT AC03

(WHT)

R50 47k

DEICE (BLU)

HOT (RED)

AC01 (WHT)

RY-PWR

TEST

R52 1.82k

C09

10µ 50V

R53 1k

R54 1k

R48 10k

BZ01

cbQ001

R55 1k

R06 24k

RECEIVER

PH302C

0.01µ

IN+

330

IN-

GND

VCC1

VCC2

OUT

137k

(KR-3)

CN-RCV

1 2 3

6.3V 47µ

–

INDICATOR

Auto

D101 D102 D103

D104 D105

(PH)

CN-DISP

1 2 3 4 5 6 7 1

9 8 7 6 5 4 3 2

(KR-10)

CN-DISP

1 2 3 4 5 6 7

IC05

A52A20030R

CN-STM1

26 25 24 23 22 21 20

R08 R028

43 /2W 43 /2W

12345

VERTICAL

RY-PWR

RY-HOT

(ZH5)

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

SCHEMATIC DIAGRAM 2/3

R11 1k

C01

R34

0.01µ

10k

R12 1k R35 5.1k

C02

0.01µ

C03

1.6V

R13 430

R14 620

R15 620

R16 620

R17 430

R18 R19 R20 R21 R22 R23 R24 R25

D05 D06 D07 D08 D09 D10 D11 D12

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

P47/A07

P50/A8

P51/A9

P52/A10

P53/A11

P54/A12

P55/A13

P56/A14

P57/A15

Vss

VDD

P30

P31

P32

P33

AUTO RESTART

P34

P35

P36

P44/A04

P45/A05

P46/A06

RY-PWR DRIVE SIGNAL

DISPLAY

STEPPING MOTOR DRIVE SIGNAL

P22/SCX

P21/S0

P20/S1

P43/A03

P23

P42/A02

P24

P67

P40/A00

P41/A01

STEPPING MOTOR DRIVE

SIGNAL BUZZER

RY-HOT DRIVE SIGNAL

IC01

A52D0022GB15

INTAKE AIR TEMP

PIPE TEMP

DEICE DETECTION

GROUND

Avss

VCC

P25

P66

P17/AN7

26252423222120191817

P65

P75

P64

AUTO OPERATION TEST RUN REMOTE CONTROL SOUND

TIMER SHORTEN

POWER CLOCK INPUT

REMOTE-CONTROL COMMAND INPUT

RESET

POWER

P14/AN4

P15/AN5

P16/AN6

P74

OSC

P13/AN3

30292827

R10 10k

P73

P12/AN2

P72

P03/NTP3

P02/NTP2

P01/NTP1

P00/NTP0

Reset

P10/ANO

P11/AN1

AVd0 AVref

CN-MAIN

C17

C14

47µ

0.1µ

25V

C20

C11

100µ

0.01µ

16V

R03 100

R02 20k

C23

R47

0.1µ

510

R29 1k

C06

R42

1000p

20k

C18

0.022µ

X01

A52PST600DR

C28

0.01µ

R31 1k

R56 1k

IC04

R07 20k

R01

100

C12

0.01µ

(MB)

P71

P70

R08

5.1k

R32 150k

Vcc

4.096 MHz

(47pF X 2)

XT1

XT2

Fig. 2

R49 100k

C21

2.2µ 50V

C07

1.00µ

16V

1 2 3 4 5 6 7

CN-STM2

R37

10k

C08

R38

0.1µ

39k

C15

0.01µ

REMOTE CONTROL NO.

0 1 2 3

JX1

R43 1k

RX1

JX4

R41

JX3

24k

R40 10k

JX3 JX4 RX1

SHORT

OPEN

SHORT

OPEN

10K 10K

26 25 24 23 22 21 20

HORIZONTAL

R09 10k

R57 20k

12345

(ZH5)

JX2

Vcc

GND

R/B

IC02

A52BR9020F

(PH)

PIPE TEMP. SENSOR

C05

0.1µ

C04

R30

0.1µ

20k

CN-TH

Fig. 1

R33 15k

AIR TEMP. SENSOR (15k 3950)(20k 3950)

SCHEMATIC DIAGRAM 3/3

ELECTRONIC CONTROL UNIT

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

FAN MOTOR

R020

Q003

R057

R018

ZD006 ZD007

Q004

D013

R026

R027

C012

R015

R025

R019

R048 R047

R021ZD004

D045

C011

F001

CN001

11 10

9 8 7 6 5 4 3 2 1

(XH7-5)

CN002

1 2 3 4 5 6 7

(PH) CN103

1 2 3 4 5 6 7

(PH) CN101

1 2 3 4 5

Z001

D007 R030

PC001

R114

R116

PC002

R118

R115

Q102

R117

L001

C003

C002

C004

R046

R002 ZD005

R001

C005

R005

R006

R007

R009

ZD001

C066 R011

DB004

TH001 TH002

R003

L002

R023 R053 R033

R008

PC004

D003

feedback

PC003

D002

ebQ001

10k

4.7k

R029

PC006

R004

R028

R010

R024

C014

R032

PC005

23 R113

R112

R052

R051

R050

R048

C016

C015

R054

R034

IC001

R055

C017

R016

R031

R017

C007

ZD002

R013

R014

ZD003

C009 C010

R012 C018C008

Q005

D006

D014

Q006

T02

549

D101

C103

ZD101

C016

IC101

C105

R105

L101

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

How to use electronic circuit diagram

TIMER TABLE

Sleep Mode Waiting 1hr. 6 sec. Sleep Mode Operation 8 hrs. 48 sec. Real Timer 1hr. 1 min.

Time Delay Safety Control 2 min. 58 sec. 0 sec. Forced Operation 60 sec. 0 sec. Time Save Control 7 min. 42 sec. Anti-Freezing 4 min. 0 sec. Auto Mode Judgement 25 sec. 0 sec. Soft Dry OFF 6 min. 36 sec.

Deodorizing Control

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

Comp./ Fan Motor Delay Timer 1.6 sec. 0 sec. Powerful Mode Operation 15 min. 15 sec. Random Auto Restart Control 0 ~ 62 sec. 0 ~ 6.2 sec. 4 Wa y Valve 5 min. 30 sec. After Deice Ended 30 sec. 3 sec. Comp. OFF after deice Hotstart Delay Times 4 min. 0 sec. Hotstart Finish Times 2 min. 0 sec.

Test Mode

Name Time (When test point Remarks

Short-circuited)

10 min. 10 sec.

1 min. 1 sec.

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

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

180 sec. 18 sec.

Soft Dry 40 sec. 4 sec.

360 sec. 36 sec.

2 min. 0 sec.

19.1. REMOTE CONTROL

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD

TOP VIEW

19.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD

BOTTOM VIEW

CS-A18BKP CU-A18BKP5 / CS-A24BKP CU-A24BKP5

19.4. PRINT PATTERN OUTDOOR UNIT PRINTED CIRCUIT BOARD

[MACC] Printed in Malaysia

Panasonic CS-A18BKP Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual