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12

• For description of each check code, refer to the following table.

Check code

Symptom

Remark

P1

Intake sensor error

P2

Pipe (TH2) sensor error

P9

Pipe (TH5) sensor error

E6, E7

Indoor/outdoor unit communication error

P4

Drain sensor error

P5

Drain pump error

PA

Forced compressor error

P6

Freezing/Overheating safeguard operation

EE

Communication error between indoor and outdoor units

P8

Pipe temperature error

E4, E5

Remote controller signal receiving error

Fb

Indoor unit control system error (memory error, etc.)

E0, E3

Remote controller transmission error

E1, E2

Remote controller control board error

E9

Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)

UP

Compressor overcurrent interruption

U3, U4

Open/short of outdoor unit thermistors

UF

Compressor overcurrent interruption (When compressor locked)

U2

Abnormal high discharging temperature/49C worked/insufficient refrigerant

U1, Ud

Abnormal high pressure (63H worked)/Overheating safeguard operation

U5

Abnormal temperature of heat sink

U8

Outdoor unit fan safeguard stop

U6

Compressor overcurrent interruption/Abnormal of power module

U7

Abnormality of super heat due to low discharge temperature

U9, UH

Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/
Current sensor error

Others

Other errors (Refer to the technical manual for the outdoor unit.)

*1 If the beeper does not sound again after the initial two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp does not come on,

there are no error records.

*2 If the beeper sounds three times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial two beeps to confirm the self-check start signal was received, the

specified refrigerant address is incorrect.

Check code displayed in the LCD.

For details, check the LED display
of the outdoor controller board.

10.Test run

10.2. Test run

The following 3 methods are available.

10.2.1. Using wired remote controller (Fig. 10-1)

1

Turn on the power at least 12 hours before the test run.

2

Press the [TEST] button twice. 

 “TEST RUN” liquid crystal display

3

Press the [Mode selection] button. 

 Make sure that wind is blown out.

4

Press the [Mode selection] button and switch to the cooling (or heating) mode.

 Make sure that cold (or warm) wind is blown out.

5

Press the [Fan speed] button. 

 Make sure that the wind speed is switched.

6

Check operation of the outdoor unit fan.

7

Release test run by pressing the [ON/OFF] button. 

 Stop

8

Register a telephone number.
The telephone number of the repair shop, sales office, etc., to contact if an error
occurs can be registered in the remote controller. The telephone number will be
displayed when an error occurs. For registration procedures, refer to the opera-
tion manual for the indoor unit.

10.3. Self-check

10.3.1. Wired remote controller (Fig. 10-2)

1

Turn on the power.

2

Press the [CHECK] button twice.

3

Set refrigerant address with [TEMP] button if system control is used.

4

Press the [ON/OFF] button to stop the self-check.

Fig. 10-1

Fig. 10-2

˚C

˚C

SIMPLE

PAR-21MAA

ON/OFF 

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

MENU

BACK

DAY

MONITOR/SET

CLOCK

ON/OFF

TEST RUN
COOL, HEAT

A

F

C

E

D B

M

I

H G

A

ON/OFF button

B

Test run display

C

Indoor temperature liquid line tem-
perature display

D

ON/OFF lamp

E

Power display

F

Error code display

Test run remaining time display

G

Set temperature button

H

Mode selection button

I

Fan speed button

M

TEST button

A

CHECK button

B

Refrigerant address

C

TEMP. button

D

IC:

Indoor unit

OC: Outdoor unit

E

Check code

F

Unit address

PAR-21MAA

ON/OFF 

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

MENU

BACK

DAY

MONITOR/SET

CLOCK

ON/OFF

ERROR CODE

C

B

A

E D

ERROR CODE

ERROR CODE

B

F

E

Summary of Contents for SEZ-KA50

Page 1: ...ad this manual and outdoor unit installation manual thoroughly before installing the air conditioner unit FOR INSTALLER E XEIPI IO O H IøN E KATA TA H È ÛˆÛÙ Î È ÛÊ Ï Ú ÛË È ÛÙ ÚÔÛÂÎÙÈÎ Ùfi ÙÔ ÂÁ ÂÈÚ ÈÔ Î ıÒ Î È ÙÔ ÂÁ ÂÈÚ ÈÔ ÂÁÎ Ù ÛÙ ÛË ÙË Â͈ÙÂÚÈÎ ÌÔÓ ÚÈÓ fi ÙËÓ ÂÁÎ Ù ÛÙ ÛË ÙË ÌÔÓ ÎÏÈÌ ÙÈÛÙÈÎÔ POUR L INSTALLATEUR ...

Page 2: ... electrical work according to the installation manual and be sure to use an exclusive circuit If the capacity of the power circuit is insufficient or there is incomplete elec trical work it could result in a fire or an electric shock Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely If the electrical part cover in the indoor unit and or the serv...

Page 3: ...llation remove the transportation support PLATE B I PLATE B 2 J Inlet size A Air inlet bottom side dimensions PLATE A 24 ø2 9 holes 2 2 ø2 9 holes 20 or more 24 ø2 9 holes Air inlet rear side dimensions 9 2 ø2 9 holes 8 3 2 5 7 A 1070 270 30 1100 25 75 32 5 10 50 94 60 350 100 108 25 20 170 A F B C D 2 E A B 1 2 3 Fig 3 2 3 2 Checking the indoor unit accessories Fig 3 2 Check that the indoor unit ...

Page 4: ... B A A A B C D 350 1070 Fig 4 1 Fig 4 3 Fig 4 4 Fig 4 2 4 3 Transportation support removal Fig 4 4 After installation completely remove the transportation support because this part should only be used during transportation A 3 screws B Transportation support 5 Refrigerant piping work 5 1 Refrigerant pipe Fig 5 1 Piping preparation Refrigerant pipes of 3 5 7 10 and 15 m are available as optional it...

Page 5: ... torque mm mm N m ø6 35 17 14 18 ø9 52 22 34 42 ø12 7 26 49 61 ø15 88 29 68 82 Warning Be careful of flying flare nut Internally pressurized Remove the flare nut as follows 1 Loosen the nut until you hear a hissing noise 2 Do not remove the nut until the gas has been completely released i e hiss ing noise stops 3 Check that the gas has been completely released and then remove the nut Outdoor unit ...

Page 6: ... air conditioner installation Label each breaker according to purpose heater unit etc Fig 7 1 A Indoor unit B Outdoor unit C Wired remote controller D Main switch fuse E Grounding For Power supply For Power supply A C B D S3 S3 S2 S1 S2 S1 2 1 D E C B A A A 1 SEZ KA35 KA50 KA60 KA71VA 6 Drainage piping work Fig 6 1 6 1 Drainage pipe connection Fig 6 1 Indoor unit s drainage pipe The drainage pipe ...

Page 7: ...or unit s fan motor is for a 50 Hz power supply The wiring must be reconfigured if a 60 Hz power supply is used Refer to the wiring diagram for details 1 Entry for wired remote controller cable 2 Entry for Indoor Outdoor connecting cable 3 Cable clamp 4 Remote controller terminal 5 Indoor Outdoor unit connecting terminal 6 To wired remote controller 7 To outdoor unit 8 Indoor controller 9 Power bo...

Page 8: ...with the AUTO RESTART FUNCTION the DIP switch on the indoor controller board When the indoor unit is controlled with the remote controller the operation mode set temperature and the fan speed are memorized by the indoor controller board The auto restart function sets to work the moment the power has restored after power failure then the unit will restart automatically OFF Not available ON Availabl...

Page 9: ...ctions Not supported Supported No vanes Equipped with vanes vanes angle setup 1 Equipped with vanes vanes angle setup 2 Disabled Enabled Mode no Setting no Initial setting Setting 1 07 2 3 1 08 2 3 1 09 2 3 10 1 2 11 1 2 3 12 1 2 Select unit numbers 01 to 03 or all units AL wired remote controller 07 wireless remote controller 1 For this model mode no 1 cannot be set using the remote controller Se...

Page 10: ...er 1 E Rail 2 F Rail 3 G Bend H Clamp 5 A A 5 4 C C 4 3 5 6 2 1 Fig 8 3 8 3 Filter rail installation Bottom air intake Fig 8 3 1 Transportation support remove Throw away 2 Please move the plate position Please use the screws removed 3 Please attach filter rail 2 as per the diagram screw 6 Please connect rails 2 3 carefully 4 Please attach filter rail 3 as per the diagram screw 6 Please connect rai...

Page 11: ... Do not carry out this test on the control wiring low voltage circuit termi nals Warning Do not use the air conditioner if the insulation resistance is less than 1 0 MΩ Insulation resistance After installation or after the power source to the unit has been cut for an extended period the insulation resistance will drop below 1 MΩ due to refrigerant accumulat ing in the compressor This is not a malf...

Page 12: ...ecified refrigerant address is incorrect Check code displayed in the LCD For details check the LED display of the outdoor controller board 10 Test run 10 2 Test run The following 3 methods are available 10 2 1 Using wired remote controller Fig 10 1 1 Turn on the power at least 12 hours before the test run 2 Press the TEST button twice TEST RUN liquid crystal display 3 Press the Mode selection butt...

Page 13: ...EC Electromagnetic Compatibility Directive 89 336 EEC This product is designed and intended for use in the residential commercial and light industrial environment HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN BG79U787H01 The product at hand is based on the following EU regulations Printed in Thailand ...

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