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TECHNICAL & SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

CONTENTS

1. PART NAMES AND FUNCTIONS ········2

2. SPECIFICATIONS ·································5

3. OUTLINES AND DIMENSIONS ············7

4. WIRING DIAGRAM ·····························10

5. REFRIGERANT SYSTEM DIAGRAM ·······11

6. TROUBLESHOOTING ························12

7. 4-WAY AIR FLOW SYSTEM ···············19

8. DISASSEMBLY PROCEDURE ···········21

9. PARTS LIST ········································24

No. OC320

REMOTE CONTROLLER

ON/OFF

RESET

TOO

WARM

TOO

COOL

MODE

AUTO COOL

DRY

HEAT

FAN

VANE

SELECT

TIME

Indoor unit
[Model names]

[Service Ref.]

SLZ-KA25VA

SLZ-KA25VA.TH

SLZ-KA35VA

SLZ-KA35VA.TH

SLZ-KA50VA

SLZ-KA50VA.TH

SLZ-KA25VAL

SLZ-KA25VAL.TH

SLZ-KA35VAL

SLZ-KA35VAL.TH

SLZ-KA50VAL

SLZ-KA50VAL.TH

Note :
•This manual does not cover

outdoor units. When servicing
outdoor units, please refer
to the service manual
No.OC322 together with this
manual.

INDOOR UNIT

Model name
indication

ON/OFF

TEMP.

SLZ-KA25,35,50VAL.TH

SLZ-KA25,35,50VA.TH

OC320-1.qxp 05.2.24 8:52 AM Page 1

Mitsubishi ilmalämpöpumput korjaa ja huoltaa: Jäähdytinpalvelu RefGroup Oy (pääkaupunkiseutu)

www.ilmalämpöpumput.com

Содержание SLZ-KA25VA.TH

Страница 1: ...RY HEAT FAN VANE SELECT TIME Indoor unit Model names Service Ref SLZ KA25VA SLZ KA25VA TH SLZ KA35VA SLZ KA35VA TH SLZ KA50VA SLZ KA50VA TH SLZ KA25VAL SLZ KA25VAL TH SLZ KA35VAL SLZ KA35VAL TH SLZ KA50VAL SLZ KA50VAL TH Note This manual does not cover outdoor units When servicing outdoor units please refer to the service manual No OC322 together with this manual INDOOR UNIT Model name indication ...

Страница 2: ...g or dehumidifying Air Intake Inhales air from room SET TEMPERATURE button SET TEMPERATURE button sets and any desired room temperature MODE SELECT button This button is used to change between auto cooling heating and drying operation modes SLZ This button is used to set fan speed to low medium or high TIMER SELECT button Used for selecting timed starting or stopping FAN SPEED button Used to chang...

Страница 3: ...own Up Timer Menu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the door Start Stop button Fan Speed button Filter button return sign button Test Run button Service button Clear button Airflow Up Down button Louver button Operation button To preceding operation number Ventilation button Operation button To next operation ...

Страница 4: ...ff indicator Indicates that the timer is off Temperature Setting Shows the target temperature Day of Week Shows the current day of the week Time Timer Display Shows the current time unless the simple or Auto Off timer is set If the simple or Auto Off timer is set shows the time remaining Sensor indication Displayed when the remote controller sensor is used Locked indicator Indicates that remote co...

Страница 5: ...L 650 25 9 16 UNIT 208 8 3 16 PANEL 20 13 16 UNIT 570 22 7 16 PANEL 650 25 9 16 UNIT 16 5 PANEL 3 WHT BLK 393 BLK BLU 164 BLU YLW 47 BRN RED 319 SLZ KA50VAL TH SLZ KA50VA TH Single phase 230V 50Hz 660 540 480 20 0 65 85 0 014 0 27 PK6V20 LM 4 39 34 30 710 590 530 3 10 10 10 Cooling 97 Heating 97 WHT BLK 325 BLK BLU 143 BLU YLW 47 BRN RED 309 NOTE Test conditions are based on ISO 5151 Cooling Indoo...

Страница 6: ...NE 50Hz NOTCH Low 28 NOISE CRITERION CURVES UNIT 1 5m MICROPHONE CEILING 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz SLZ KA50VAL TH SLZ KA50VA TH High Medium 39 SPL dB 34 LINE 50Hz NOTCH Low 30 NOTE The sound lev...

Страница 7: ...take Drain pipe VP 25 connection O D 32 Vane motor Drain hole V M Air intake grille 55 35 35 55 Auto vane Grille Air intake hole Air intake hole Air outlet hole Air outlet hole 301 301 Emergency operation switch cooling Emergency operation switch heating Operation lamp DEFROST STAND BY lamp WIRELESS PANEL Receiver Detail drawing of fresh air intake Ceiling surface Cut out hole 73 4 Burring hole 3 ...

Страница 8: ...ing screws 2 Place the lower end of the controller into the holder A Wireless remote controller Accessory B Wall C Remote controller holder Accessory D Fixing screw Accessory The signal can travel up to approximately 7 meters in a straight line within 45 degrees to both right and left of the center line of the receiver In addition the signal may not be received if there is interference of light of...

Страница 9: ...9 WIRED REMOTE CONTROLLER Unit mm 130 120 19 Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaupunkiseutu www ilmalämpöpumput com ...

Страница 10: ...ls etc Connector Terminal block 1 Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing 2 Indoor and outdoor connecting wires are made with polarities make wiring matching terminal numbers S1 S2 S3 NOTES 3 Symbols used in wiring diagram above are SWITCH COOLING ON OFF LED RUN INDICATOR SWITCH HEATING ON OFF LED HOT ADJUST BUZZER RECEIVING...

Страница 11: ...H1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare SLZ KA25VAL TH SLZ KA25VA TH SLZ KA35VAL TH SLZ KA35VA TH SLZ KA50VAL TH SLZ KA50VA TH Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaupunkiseutu www ilmalämpöpumput com ...

Страница 12: ...MENU BACK DAY MONITOR SET CLOCK ON OFF B C A E D A CHECK button B Refrigerant address C TEMP button D IC Indoor unit OC Outdoor unit E Check code RES ET TOO TOO COOL AUTO COOL DRY HEAT FAN VANE SELECT TIME ON OFF TOO WARM TOO COOL h 1 Turn ON the power 2 During pressing both the MODE SELECT button and TOO COOL button on the remote controller at the same time press the RESET button 3 At first relea...

Страница 13: ...ontroller Wired remote controller Beeper sounds OPERATION INDICATOR lamp flashes 1 Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor error P9 Pipe TH5 sensor error 2 P2 Pipe TH2 sensor error 3 E6 E7 Indoor outdoor unit communication error 4 P4 Drain sensor error 5 P5 Drain pump error 6 P6 Freeing Overheating safeguard operation 7 EE Communication erro...

Страница 14: ... or open phase wiring for the outdoor unit s power terminal block L1 L2 L3 Incorrect wiring between indoor and outdoor units incorrect polarity of S1 S2 S3 Remote controller wire short Note Operation is not possible for about 30 seconds after cancellation of function selection Correct operation For description of each LED LED1 2 3 provided on the indoor controller refer to the following table LED1...

Страница 15: ...LZ KA50VAL TH SLZ KA50VA TH CNSK Connect to the indoor controller board CNDK Between 1 1 to 3 3 220 240V AC CN2S Connect to the indoor controller board CN2D Between 1 1 to 3 3 12 6 13 7V DC Pin1 1 Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaupunkiseutu www ilmalämpöpumput com ...

Страница 16: ...trol CN6V Vane motor output MV CN90 Connect to the wireless remote controller board CNB CN31 Drain sensor DS CN29 Condenser evaporator temperature thermistor TH5 CN21 Pipe temperature thermistor Liquid TH2 CN20 Room temperature thermistor TH1 CN22 Remote controller connecting wire 10 4 14 6V DC LED3 Transmission Indoor outdoor LED2 Power supply R B LED1 Power supply I B CN2D Connector to the indoo...

Страница 17: ...L Normal WHT BLK BLK BLU BLU YLW BRN RED 386 428 81 91 28 32 157 174 KA35VA L 373 413 155 172 44 49 302 335 KA50VA L 308 341 135 151 44 49 293 324 4 3kΩ 9 6k Abnormal Abnormal Opened or short circuited Opened or short circuited Measure the resistance between the terminals using a tester Surrounding temperature 20 30 Measure the resistance between the terminals using a tester Surrounding temperatur...

Страница 18: ...r of B 3480 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 2k 30 4 3k 40 3 0k Thermistor R0 6 0k 5 Fixed number of B 3390 2 Rt 6exp 3390 0 6 0k 10 3 9k 20 2 6k 25 2 2k 30 1 8k 40 1 3k 60 0 6k Thermistor for lower temperature 1 273 t 1 273 1 273 t 1 273 20 0 20 40 60 80 Thermistor for drain sensor Temperature 0 1 2 3 4 5 6 7 8 9 10 Resistance k Thermistor for drain sensor Mitsubishi ilmalämpöpumput kor...

Страница 19: ...r air flow amount Q Pa E Static pressure of indoor unit with air flow amount Q Qa Estimated amount of fresh air intake with out D m3 min m3 min Pa Pa Pa Pa How to read curves Whenever the indoor unit is operating the duct fun operates 1 Connect the optional multiple remote controller adapter PAC SA88HA E to the connector CN51 on the indoor controller board 2 Drive the relay after connecting the 12...

Страница 20: ...r Unlocking button Vane motor 3 Set a vertical vane of the air outlet which tries to fixed by the hand slowly within the range in the table below Measured standard position of the grille Horizontal vane Standard of horizontal position Dimension A mm 21 25 28 30 Level 30 Min Downward 45 Downward 55 Downward 70 Max w Dimension between 21 mm and 30 mm can be arbitrarily set Caution Do not set the dim...

Страница 21: ...e grille knob 3 Removing the panel 1 Remove the air intake grille Refer to 1 Corner panel See figure 2 1 Remove the screw of the corner 2 Slide the corner panel to the direction of the arrow 3 and remove the corner panel Panel See photo 2 1 Disconnect the connector that connects with the unit 2 Remove the 2 screws from the panel and loose another 2 screws which fixed to the oval hole have differen...

Страница 22: ... 3 screws fixed to the piping cover and remove the piping cover See photo 9 7 Remove the 6 screws fixed to the flat plate and remove the flat plate 8 Disconnect the lead wires to the direction of the fan motor and remove the 3 nuts of the fan motor Photo 5 6 Remove the drain pan 1 Remove the panel Refer to 3 2 Remove the room temperature thermistor and the 2 lead wires held with fastener wireless ...

Страница 23: ...r 9 Removing the drain pump DP and drain sensor DS 1 Remove the panel Refer to 3 2 Remove the drain pan Refer to 6 3 Remove the 2 screws fixed to the control box cover and remove the control box cover 4 Remove the connectors of the CNP and the CN31 from the indoor controller board 5 Remove the 1 screw fixed to the cover and remove the cover 6 Disconnect the lead wires to the direction of the drain...

Страница 24: ...03 317 E07 103 037 E07 103 975 E07 103 100 E07 103 010 E07 103 303 E07 103 044 E07 103 031 E07 103 032 AIR OUTLET GRILLE AIR OUTLET GRILLE WIRELSS REMOTE CONTROL BOARD AUTO VANE CORNER PANEL AIR FILTER INTAKE GRILLE VANE MOTOR VANE BUSH GEAR V GEAR M Parts name SLP 2AL SLP 2AA Q ty set PANEL PARTS SLP 2AL SLP 2AA 1 2 Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaup...

Страница 25: ...162 375 E07 156 375 E07 154 440 E02 095 350 FUSE VARISTOR INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD TERMINAL BLOCK TERMINAL BLOCK INDOOR POWER BOARD INDOOR FAN CAPACITOR FUSE ZNR I B I B I B TB4 TB15 P B C1 250V 6 3A 1 5 440VAC 3P 2P 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SLZ KA Q ty set 35 25 50 35 25 50 VAL TH VA TH 1 3 2 4 6 5...

Страница 26: ... SLZ KA50VA TH ON OFF RESET TOO WARM TOO COOL MODE AUTO COOL DRY HEAT FAN VANE SELECT TIME 1 2 3 4 5 6 8 9 10 11 13 7 15 19 21 22 17 12 3 23 22 25 20 18 14 24 16 ON OFF TEMP 27 26 Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaupunkiseutu www ilmalämpöpumput com ...

Страница 27: ...SPL WASHER DRAIN PAN ROOM TEMPERATURE THERMISTOR FAN GUARD DRAIN PLUG COIL SUPPORT PIPE TEMPERATURE THERMISTOR LIQUID DRAIN HOSE DRAIN SENSOR SENSOR HOLDER DRAIN PUMP LEG 2 COVER DRUM WIRELESS REMOTE CONTROLLER REMOTE CONTROLLER HOLDER REMOTE CONTROLLER REMOTE CONTROLLER CABLE 1 1 2 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 MF MF MF TH1 TH5 TH2 DS DP W R PK6V15 LD PK6V20 LL PK6V20 LM 1 1 2 1 1 3...

Страница 28: ... 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Feb 2005 No OC320 PDF 8 Made in Japan New publication effective Feb 2005 Specifications subject to change without notice Mitsubishi ilmalämpöpumput korjaa ja huoltaa Jäähdytinpalvelu RefGroup Oy pääkaupunkiseutu www ilmalämpöpumput com ...

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