Panasonic CS-A18DKD User manual

1 Features 2

2 Functions 3

2.1. Remote Control 3

2.2. Indoor Unit 4

2.3. Outdoor Unit 5

3 Product Specifications 6

3.1. CS-A18DKD CU-A18DKD 6

3.2. CS-A24DKD CU-A24DKD 8

4 Dimensions 10

4.1. Indoor Unit & Remote Control 10

4.2. Outdoor Unit 11

5 Refrigeration Cycle Diagram 12

6 Block Diagram 13

7 Wiring Diagram 14

8 Operation Details 15

and distribution is a violation of law.

CS-A18DKD CU-A18DKD

CS-A24DKD CU-A24DKD

8.1. Heating Operation 15

8.2. Cooling Operation 16

8.3. Soft Dry Operation 17

8.4. Automatic Operation 18

8.5. Operation Control 19

8.6. Indoor Fan Speed Control 26

8.7. Outdoor Fan Speed Control 28

8.8. Vertical Airflow Direction Control 28

8.9. Horizontal Airflow Direction Control 29

8.10. Powerful Operation 30

8.11. Quiet Operation 30

8.12. Ionizer Operation 32

8.13. Timer Control 33

8.14. Random Auto Restart Control 34

8.15. Remote Control Signal Receiving Sound 34

Air Conditioner

CONTENTS

Page Page

Order No. MAC0501007C3

9 Operating Instructions 35

10 Installation Instructions 41

10.1. Safety Precautions 41

10.2. Indoor Unit 44

10.3. Outdoor Unit 48

11 2-way, 3-way Valve 51

11.1. Evacuation of the Equipment (For Europe & Oceania

Destination) 52

11.2. Air Purging of the Piping and Indoor Unit 58

12 Servicing Information 64

12.1. Indoor Electronic Controllers Removal Procedures 64

12.2. Cross Flow Fan and Indoor Fan Motor Removal

Procedures 65

12.3. Remote Control Reset 66

12.4. Auto OFF/ON Button 67

13 Troubleshooting Guide 68

13.1. Refrigeration cycle system 68

• High efficiency.

• Compact design.

• Wider range of horizontal discharge air.

• Air Filter with function to reduce dust and smoke.

• Automatic air swing and manual adjusted by Remote

Control for horizontal and vertical airflow.

• Long installation piping up to 25 meter.

• Supersonic Air Purifying System with SUPER alleru-buster.

− Inactive various harmful airbone elements including

allergens, viruses and bacteria.

− Generated supersonic waves enhance the ability to

collect dust and dirt in the air.

• Quality Improvement

− Random auto restart after power failure for safety restart

operation.

− Gas leakage detection.

− Prevent Compressor reverse cycle.

− Inner protector to protect Compressor.

− Noise prevention during soft dry operation.

− Blue coated Condenser for high resistance to corrosion.

− Anti-dew formation control (Cooling & Soft Dry).

− Overload Protection Control (Heating).

− Outdoor Fan Control.

− Compressor High Pressure Control.

• Operation Improvement

− Quiet mode to provide quiet operation.

− Powerful mode to reach the desired room temperature

quickly.

− Ionizer control for generating negative ion in discharge

air.

− 24-hour timer setting.

14 Technical Data 70

14.1. Thermostat characteristics 70

14.2. Operation characteristics 71

15 Exploded View (Indoor Unit) 73

15.1. CS-A18DKD CS-A24DKD 73

16 Replacement Parts List (Indoor Unit) 74

16.1. CS-A18DKD CS-A24DKD 74

17 Exploded View (Outdoor Unit) 75

17.1. CU-A18DKD CU-A24DKD 75

18 Replacement Parts List (Outdoor Unit) 76

18.1. CU-A18DKD CU-A24DKD 76

19 Electronic Circuit Diagram 77

19.1. Indoor Unit & Outdoor Unit 77

19.2. Remote Control 83

19.3. Print Pattern Indoor Unit Printed Circuit Board 84

19.4. Print Pattern Indicator & Receiver Printed Circuit Board 85

19.5. Print PatternOutdoor Unit Printed Circuit Board 86

• Serviceability Improvement

− Removable and washable Front Panel.

1 Features

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

2 Functions

2.1. Remote Control

Operation Start/Stop

OFF / ON

Room Temperature Setting

TEMP.

Operation Mode Selection

•

AUTO

Automatic Operation

•

COOL

Cooling Operation

•

HEAT

Heating Operation Mode

•

DRY

Soft Dry Operation

MODE

Time / Timer Setting

• Hours and minutes setting.

Clock Setting

• Current time setting.

Ionizer Operation Start/Stop

Indoor Fan Speed Selection

FAN SPEED

•FAN Low Fan Speed

•FAN Medium Fan Speed

•FAN High Fan Speed

•AUTO Automatic Fan Speed

FAN

Airflow Direction Control

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

ON-TIMER

OFF-TIMER

Timer Operation Selection

SET

CANCEL

Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and

cancellation.

CLOCK

AIR SWING

• Vertical Automatic Airflow

Direction Control and Manual

Airflow Direction Control

(5 stages of adjustment).

•Horizontal Automatic Airflow

Direction Control and Manual

Airflow Direction Control

(5 stages of adjustment).

Powerful Operation Start/Stop

POWERFUL

Quiet Operation Start/Stop

QUIET

Cooling, Soft Dry Operation.

• Increase or decrease set temperature

(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.

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

2.2. Indoor Unit

Ionizer Operation

• Generate and discharge negative ion.

Random Auto Restart Control

• Unit will be restarted, when resume from

power failure, at previous setting.

Anti-Freezing Control

• To prevent indoor heat exchanger from

freezing.

Indoor Fan Speed Control

• Manual control fan speed

(High, Medium and Low).

• Automatic fan speed

•

Vertical airflow control can be adjusted

automatically or manually by remote control.

Horizontal airflow control can be adjusted

automatically or manually by remote control.

Airflow Direction Control

Automatic Operation Button

• Press for < 5 second to operate Automatic

operation mode.Use when the remote

control cannot be used.

• Press for >5 second to operate Cooling

operation mode and compressor force

to on (“beep” sound will be heard). Used

when test running or servicing.

• Within 20 second of Cooling operation,

press continuously for >5 second to enter

various setting mode. “beep, beep” sound

will be heard. (Used to toggle remote

control signal receiving sound or select

remote control transmission code.)

AUTO

OFF / ON

Operation Indication Lamps (LED)

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

blinks in Automatic

Operation judging.

•QUIET (Orange) ........ Lights up in Quiet

Operation.

•TIMER (Orange) ....... Lights up in Timer

Setting.

•POWERFUL (Orange) .. Lights up in Powerful

Operation.

•ION (Green) ........... Lights up in Ionizer

Operation.

•

SUPER

ALLERU-BUSTER

(Blue) ... Lights up in operation.

Operation Mode

•

Heating, Cooling, Soft Dry and Automatic

Operation.

Powerful Operation

• Reaches the desired room temperature

quickly.

Timer Operation

•

Delay OFF/ON Timer control.

Time Delay Safety Control

•

Restarting is inhibited for approximately

3 minutes.

Quiet Operation

• To provide quiet operation.

7 Minutes Time Save Control

• To reduce the built up humidity inside

the room.

Anti-Dew Formation Control

• Anti-Dew Formation Control for indoor

unit discharge area.

Hot-Start Control

• To prevent cold air being discharge during

Heating operation starts.

Anti Cold Draft Control

• To prevent the cold draft during Heating

mode operation in thermo off condition.

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

2.3. Outdoor Unit

• To protect compressor from reverse

rotation when there is an instantaneous

power failure.

60 Secs. Forced Operation Control

• Once the compressor is activated, it

does not stop within the first 60 secs.

However, it stops immediately with

remote control stop signal.

Overload Protector

• Inner protector.

Compressor Reverse Rotation

Protection Control

• To prevent frosting at outdoor heat

exchanger during Heating Operation.

Deice Control

• When the unit is switched to “OFF”

during Heating Operation, 4-way valve

stays at Heating position for 5 minutes.

4-Way Valve Control

Outdoor Fan Operation Control

• 6-pole induction motor (2 speed).

•

For Cooling or Soft Dry operation

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

temperature reaches to 31°C.

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

temperature reaches to 29°C.

For Heating operation

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

temperature reaches to 13.5°C.

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

temperature reaches to 15.5°C.

For Over-heating Protection, the Fan is

switched ON or OFF depending on the

piping temperature and the outdoor

temperature.

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

3 Product Specifications

3.1. CS-A18DKD CU-A18DKD

Unit CS-A18DKD CU-A18DKD

Power Source (Phase, Voltage, Cycle) ,V,Hz Single, 220 - 230, 50

Cooling Capacity kW (BTU/h) 5.30 (18,100) - 5.30 (18,100)

Heating Capacity kW (BTU/h) 5.65 (19,300) - 5.70 (19,400)

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

Airflow Method OUTLET

INTAKE

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 13.1 (460) - 13.1 (460) 28.6 (1,010) - 31.1 (1,100)

Heating; 14.2 (500) - 14.2 (500)

Me m3/min (cfm) Cooling; 14.5 (510) - 14.5 (510) —

Heating; 14.7 (520) - 14.7 (520)

Hi m3/min (cfm) Cooling; 15.3 (540) - 15.3 (540) 50.7 (1,790) - 52.7 (1,860)

Heating; 16.0 (560) - 16.0 (560)

SHi m3/min (cfm) Cooling; 16.0 (560) - 16.0 (560) —

Noise Level dB (A) Cooling; High 43 - 43, Low 38 -38 Cooling; High 53 - 54

Heating; High 42 - 42, Low 38 -38 Heating; High 54 - 55

Electrical Data Input Power kW Cooling; 1.72 - 1.76

Heating; 1.65 - 1.71

Running Current ACooling; 8.0 - 7.8

Heating; 7.7 - 7.6

EER W/W (BTU/hW) Cooling; 3.08 - 3.01 (10.52 - 10.28)

COP W/W (BTU/hW) Heating; 3.42 - 3.33 (11.70 - 11.35)

Starting Current A 44.5

Piping Connection Port

(Flare piping)

inch

G ; Half Union 1/2”

L ; Half Union 1/4”

G ; 3-way valve 1/2”

L ; 3-way valve 1/4”

Pipe Size

(Flare piping)

inch

G ; (gas side) 1/2”

L ; (liquid side) 1/4”

G ; (gas side) 1/2”

L ; (liquid side) 1/4”

Drain

Hose

Inner diameter mm 12 —

Length mm 650 —

Power Cord Length m 1.9 —

Number of core-wire 3 (1.5 mm2) —

Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)

Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875)

Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)

Net Weight lb (kg) 24 (11.0) 132 (60.0)

Compressor Description —Rotary (1 cylinder)

rolling piston type

Motor Type —Induction (2-poles)

Rated Output kW — 1.5

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

Unit CS-A18DKD CU-A18DKD

Air Circulation Description Cross-flow Fan Propeller Fan

Material ASHT-18 PP

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

Input W 50.0 - 50.0 150.3 - 150.3

Rated Output W 30 80

Fan Speed Low rpm Cooling; 1,160 - 1,160 460 - 490

Heating; 1,240 - 1,240

Medium rpm Cooling; 1,290 - 1,290 —

Heating; 1,290 - 1,290

High rpm Cooling; 1,360 - 1,360 815 - 830

Heating; 1,400 - 1,400

SuperHigh rpm Cooling; 1,400 - 1,400 —

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2×15 2×28

FPI 21 16

Size (W × H × L) mm 810 × 315 × 25.4 827.7

862.2

× 711.2 × 44

Refrigerant Control Device —Capillary Tube

Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS

M60 or ATMOS 56M

Refrigerant (R-22) g (oz) — 1,710 (60.4)

Thermostat — —

Protection Device — Inner Protector

Capillary Tube Length mm — Cooling; 970, Heating; 820

Flow Rate l/min — Cooling; 11.0, Heating; 27.0

Inner Diameter mm — Cooling; 1.6, Heating; 2.2

Air Filter Material

Style

P.P.

Honeycomb

—

Capacity Control Capillary Tube

Compressor Capacitor µF, VAC — 45 µF, 400/440VAC

Fan Motor Capacitor µF, VAC — 3.5 µF, 440VAC

Note:

• Specifications are subject to change without notice for further improvement.

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

3.2. CS-A24DKD CU-A24DKD

Unit CS-A24DKD CU-A24DKD

Power Source (Phase, Voltage, Cycle) ,V,Hz Single, 220 - 230, 50

Cooling Capacity kW (BTU/h) 7.03 - 7.03 (24,000 - 24,000)

Heating Capacity kW (BTU/h) 7.80 - 7.80 (26,600 - 26,600)

Moisture Removal l/h (Pint/h) 4.0 (8.5)

Airflow Method OUTLET

INTAKE

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 13.7 (480) - 13.7 (480) 28.1 (990) - 29.9 (1,055)

Heating; 14.7 (520) - 14.7 (520)

Me m3/min (cfm) Cooling; 15.8 (560) - 15.8 (560) —

Heating; 15.8 (560) - 15.8 (560)

Hi m3/min (cfm) Cooling; 16.8 (590) - 16.8 (590) 49.7 (1,750) - 50.7 (1,790)

Heating; 17.6 (620) - 17.6 (620)

SHi m3/min (cfm) Cooling; 17.6 (620) - 17.6 (620) —

Noise Level dB (A) Cooling; High 47 - 47, Low 41 - 41 Cooling; High 53 - 54

Heating; High 46 - 46, Low 41 - 41 Heating; High 54 - 55

Electrical Data Input Power kW Cooling; 2.54 - 2.58

Heating; 2.53 - 2.56

Running Current ACooling; 12.3 - 12.2

Heating; 12.2 - 12.1

EER W/W (BTU/hW) Cooling; 2.77 - 2.72 (9.45 - 9.30)

COP W/W (BTU/hW) Heating; 3.08 - 3.05 (10.51 - 10.39)

Starting Current A 65.0

Piping Connection Port

(Flare piping)

inch

G ; Half Union 5/8”

L ; Half Union 1/4”

G ; 3-way valve 5/8”

L ; 3-way valve 1/4”

Pipe Size

(Flare piping)

inch

G ; (gas side) 5/8”

L ; (liquid side) 1/4”

G ; (gas side) 5/8”

L ; (liquid side) 1/4”

Drain

Hose

Inner diameter mm 12 —

Length mm 650 —

Power Cord Length m 1.9 —

Number of core-wire 3 (2.5 mm2) —

Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)

Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875)

Depth inch (mm) 9-1/16 (230) 13 - 19/32 (345)

Net Weight lb (kg) 26 (12.0) 139 (63.0)

Compressor Description —Rotary (1 cylinder) rolling

piston type

Motor Type —Induction (2-poles)

Rated Output kW — 2.0

Air Circulation Description Cross-flow Fan Propeller Fan

Material ASHT-18 PP

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

Rated Output W 30 80

Fan Speed Low rpm Cooling; 1,280 - 1,280 460 - 490

Heating; 1,380 - 1,380

Medium rpm Cooling; 1,480 - 1,480 —

Heating; 1,480 - 1,480

High rpm Cooling; 1,570 - 1,570 815 - 830

Heating; 1,650 - 1,650

SuperHigh rpm Cooling; 1,650 - 1,650 —

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

Unit CS-A24DKD CU-A24DKD

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2×15 2×28

FPI 21 18

Size (W × H × L) mm 810 × 315 × 25.4 827.7

862.2

× 711.2 × 44.0

Refrigerant Control Device —Capillary Tube

Refrigeration Oil (cm3) — SUNISO 4GDID or ATMOS

M60 or ATMOS 56M

Refrigerant (R-22) g (oz) — 2,050 (72.4)

Thermostat — —

Protection Device — Inner Protector

Capillary Tube Length mm — Cooling; 730, Heating; 340

Flow Rate l/min — Cooling; 12.5, Heating; 21.0

Inner Diameter mm — Cooling; 1.6, Heating; 2.0

Air Filter Material

Style

P.P.

Honeycomb

—

Capacity Control Capillary Tube

Compressor Capacitor µF, VAC — 45 µF, 400/440VAC

Fan Motor Capacitor µF, VAC — 3.5 µF, 440VAC

Note:

• Specifications are subject to change without notice for further improvement.

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

4 Dimensions

4.1. Indoor Unit & Remote Control

4.1.1. CS-A18DKD CS-A24DKD

CS-A18DKD CU-A18DKD / CS-A24DKD CU-A24DKD

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