Panasonic CS-F24DB4E5 Manuale utente

1 Service Information 3

1.1. Example of trouble at test operation 3

1.2. Caution of test operation 3

1.3. Caution during automatic address setting 3

1.4. Operation range 4

2 Features 5

2.1. Variety of excellent features 5

2.2. Low-noise outdoor units 7

2.3. Improved workability 8

and distribution is a violation of law.

CS-F24DB4E5 CU-L24DBE5

CS-F28DB4E5 CU-L28DBE5

2.4. A brand-new control method 9

2.5. Wired Remote Control 10

2.6. Wireless Remote Control 10

2.7. Group Control Equipment 11

3 Specification 12

3.1. Product Specification 12

4 Dimensions 14

4.1. CS-F24DB4E5 CS-F28DB4E5 14

4.2. CU-L24DBE5 CU-L28DBE5 15

Air Conditioner

CONTENTS

Page Page

Order No. MAC0409030C2

5 Refrigeration Cycle 16

6 Block Diagram 17

6.1. CS-F24DB4E5 CS-F28DB4E5 17

6.2. CU-L24DBE5 CU-L28DBE5 18

7 Wiring Diagram 19

7.1. CS-F24DB4E5 CS-F28DB4E5 19

7.2. CU-L24DBE5 CU-L28DBE5 20

8 Operation Details 21

8.1. Wired Remote Control (Optional part) 21

8.2. Wireless Remote Control (Optional part) 22

9 Operation Control 23

9.1. Operation Mode 23

9.2. Compressor Start Control 23

9.3. Cooling Operation 23

9.4. Heating Mode Operation 26

9.5. Louver Control 29

9.6. Odour Removing Operation 31

9.7. Energy Save Operation 32

9.8. Outdoor Fan Remaining Heat Removal Control 32

9.9. Crank Case Heater Control 32

9.10. Valve Error 32

9.11. Pump Down Operation 33

9.12. Indoor Air Volume Up Control (DC Fan Motor Type Only)

10 Installation Instruction 34

10.1. Pipe length 34

10.2. Refrigerant additional charge 35

10.3. Position of the centre gravity 35

10.4. Indoor unit installation 36

10.5. Outdoor unit installation 48

10.6. Wired remote control installation 59

10.7. Wireless remote control installation manual 66

10.8. Twin and triple 73

11 Installation and Servicing Air Conditioner Using R410A 74

11.1. Outline 74

11.2. Tools for installing/servicing refrigerant piping 75

11.3. Refrigerant piping work 79

11.4. Installation, transferring, servicing 81

12 Troubleshooting Guide 85

12.1. Self-diagnosis error code table 85

13 Replacement Parts 87

13.1. Indoor unit 87

13.2. Outdoor unit 92

14 Electronic Circuit Diagram 96

14.1. Indoor unit 96

14.2. Outdoor unit 100

14.3. Wired remote control 107

14.4. Wireless remote control 108

14.5. Print pattern 109

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

1 Service Information

Notice of Address setting for NEW Cassette / NEW Outdoor Unit.

The new Cassette / New Outdoor models are possible to have address setting for twin / triple control or group control by

automatic when main power supply is switched on.

(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However, this address setting is only

possible when made proper wiring connection and also Indoor unit should be original virgin unit.

1.1. Example of trouble at test operation

If found out as following phenomenon at test operation on site, it may have possibility of wrong address setting.

Therefore, please ensure of the address setting.

1. LCD display of wired remote control had not illuminate although the main power supply switch is ‘on’.

2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoor unit cannot be operated.

(But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control ON/OFF switch is ‘on’.)

3. P.C. board had memorized wrong setting information.

a. If main power supply is switched ‘on’ with the wrong connection.

b. When changing the connection or combination of units due to re-installation etc.

•

• •

• When changing the system from twin to triple (triple to twin).

•

• •

• When changing the system from group control to normal one to one system.

•

• •

• When making the replacement of units as master and slave etc.

1.2. Caution of test operation

Do not touch the remote control switch and do not change any wirings for one minute when the main power supply switch is ‘on’.

(Because the unit is having automatic address setting during the first one minute.)

1.3. Caution during automatic address setting

When main power supply switch is ‘on’, the P.C. board will automatically memorized the connecting system.

Consequently, when initial power supply is ‘on’, there will not be interchangeability of units even of the same type and same

capacity unit. Therefore unable to connect the unit to another system.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

1.4. Operation range

1.4.1. Power Supply

The applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be

balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of

the rated voltage.

MODEL Unit Main Power Applicable Voltage

CU- Phase, Volts Hz Max Min

L24DBE5 1~240 50 264 216

L28DBE5 1~220 50 242 198

1~230 50 253 207

1.4.2. Indoor and Outdoor Temperature

•

• •

• Model 50Hz CU-L24DBE5, CU-L28DBE5

Operating Hz Indoor Temp. (D.B./W.B.) (°C) Outdoor Temp. (D.B./W.B.) (°C)

Max Min Max Min

Cooling 50 32/23 21/15 43/- -15/-

Heating 50 27/- 16/- 24/18 -20/-

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

2.1. Variety of excellent features

2 Features

2.1.1. Compact design

•

• •

• The height is only 246 mm and can be installed even where the space is limited.

2.1.2. Automatic restart function

•

• •

• When the electric power comes back after a power failure, the unit itself automatically restarts the operation in the pre-failure

mode.

2.1.3. Auto fan mode (indoor unit)

•

• •

• Auto fan mode is added besides Hi, Me and Lo.

It automatically adjusts the fan speed according to the indoor temperature.

2.1.4. Dry mode function

•

• •

• Dry mode can make a comfortable indoor environment during wet season.

2.1.5. Quiet operation

•

• •

• The sound level is as low as 32 dB (A) for model CS-F24DB4E5, 33 dB (A) for model CS-F28DB4E5 and suitable for offices,

shops, homes etc., where quiet operation is essential.

2.1.6. Auto Swing Louvre

•

• •

• The air flow angle can be changed automatically (or manually) to an angle between 10° to 70° using the remote control.

2.1.7. Low ambient cooling operation

•

• •

• Cooling operation is possible at outdoor temperature of -5°C.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

2.1.8. Piping and drainage

•

• •

• Built-in upward draining mechanism.

2.1.9. Automatic changeover function (heat pump models)

•

• •

• The unit automatically switches between cooling and heating in accordance with operating load in order to maintain a

comfortable indoor temperature.

2.1.10. Hot start system (heat pump models)

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

[Product features]

2.2. Low-noise outdoor units

2.2.1. Low-noise design improves in surrounding areas

1. The noise-suppressing winglet fan is a result of new research into vane design theory. The unique curved shape suppresses

the generation of vortexes, thus reduces air flow noise.

2. The adoption of double-orifice rings reduces air passage resistance.

3. Strengthening of the noise insulation materials in the compressor and the sealing-in of mechanical noise allows vibration noise

to be greatly enclosed and suppressed.

4. The heat exchanger has an L-shaped design to allow air to flow more smoothly.

5. Noise is automatically reduced further during night time operation with lower outdoor air temperatures.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

2.3.1. Pipes that are one size larger can

also be connected for renewal

•

• •

• If renewing the system, existing refrigerant pipes can be

utilized so that only the indoor units need to be replaced.

•

• •

• For example, liquid and gas pipes from 10 years ago can be

connected to current pipes with the same size for one size

larger. Effective utilization of materials reduces working

time and trouble. (Adaptor sockets are not supplied.)

2.3.3. Drain water dripping-prevention

structure

•

• •

• The base of the outdoor unit is provided with a single drain

hole in order to prevent drain water from leaking out of the

unit. Body connecting a drain elbow and a discharge pipe,

water leakages can be prevented even when the unit is

installed against a wall.

2.3. Improved workability

2.3.2. Additional refrigerant charging

•

• •

• All models do not require any additional charging of refrigerant for 30m of pipe length. This makes installation much easier.

2.3.4. Space saving design allows units to be installed side by side continuously

•

• •

• Servicing after installation can be carried-out by removing the front covers.

2.3.5. Easy test operation

•

• •

• Test operation can be carried out for both indoor and outdoor units.

2.3.6. Long pipe design

•

• •

• Maximum piping length of 50m.

2.3.7. Internal pipe connection

•

• •

• Pipes are connected inside the units (inside the side covers), making the final appearance more attractive.

•

• •

• Pipes can be diverted outward in any of four directions (forward, right, down, rear).

•

• •

• Small liquid pipe diameters of 9.53mm, making installation work much easier.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

2.3.8. Centralized draining method

•

• •

• Even when multiple outdoor units are installed to a wall, the

drain outlets can be concentrated into a single drain pipe.

This makes installation easier and also improve

appearance.

2.4. A brand-new control method

Easier power supply wiring connection

Power supply wiring and other wiring tasks can be carried out more easily.

•

• •

• Twin non-polar wires used to connect indoor and outdoor units.

•

• •

• Adoption of connection error prevention circuits for drive wires and signal wires. If a connection error is made, the relay does

not operate and current does not flow to the circuit boards.

Twin and Triple operation

•

• •

• Simultaneous air conditioning of wide spaces and corners is possible. Indoor units of different horsepowers can even be

used in combination.

•

• •

• Master unit and slave-units can be set automatically in twin and triple systems. No address setting is necessary.

•

• •

• Multiple indoor units can be operated simultaneously with a single remote control. Note that individual operation is not

possible.

Separate indoor/outdoor unit power supplies

The power supply can be connected to (1) just the outdoor units, or (2) to both the indoor and outdoor units.

Easy test operation

Test operation can be carried out for both indoor and outdoor units.

Automatic setting initialization function (Remote control and Indoor unit)

In accordance with the indoor and outdoor units connected and the connection methods, conditions such as the connection

configuration (twin or triple format) and remote-control functions such as automatic louvre operation and cooling or heating

mode are automatically detected and set instantly.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

2.5. Wired Remote Control

1. The new design includes an easily-visible red pilot lamp. The power can be turned on and off at a single touch, without opening

the cover.

2. Has a build-in thermistor, allowing indoor temperature detection in accordance with indoor conditions by switching with main unit

thermistor.

3. Twin non-polar wires make installation work easy. (10 m cable supplied as accessory.)

2.6. Wireless Remote Control

1. New design with compact size. (Operation range within approximately 8 m.)

2. Built-in timer with OFF/ON timer setting (within 24 hours)

Wired Wireless

CZ-RD513C CZ-RL513B

NOTE: Both of the above remote control is packed separately from the indoor unit.

CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5

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