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OPERATING PROCEDURE

PHOTOS/FIGURES

Removing the electrical parts

(1) Loosen the 2 screws on the control box cover.

(2) Slide the control box cover as indicated by the arrow to

remove.

• Indoor controller board (I.B)

• Terminal block (TB4)

• Terminal block (TB5)

Photo 4

Photo 5

Removing the room temperature thermistor (TH1)

(1) Remove the panel. (Refer to procedure 2)

Room temperature thermistor (TH1) (See Photo 6)

(2) Remove the 2 lead wire cover fixing screws. (See Photo 6)

(3) Open the lead wire cover, then remove the connector

cover from the connector box.

(4) Remove the band that fixes the room temperature ther-

mistor (TH1) to the connector box.

(5) Remove the room temperature thermistor (TH1) from the

connector box.

(6) Remove the connector (CN20) from the indoor controller

board, and disconnect the room temperature thermistor

(TH1).

Note: When fixing the thermistor, make sure to fix it to

the connector box using a band.

Photo 6

Removing the drain pan

(1) Remove the panel. (Refer to procedure 2)

(2) Remove the room temperature thermistor (TH1). (Refer

to procedure 4)

Connector box (See Photo 7)

(3) Remove the connector box fixing screw.

(4) Slide the connector box as indicated by the arrow 1, then

remove from bell mouth.

Bell mouth (See Photo 7)

(5) Remove the 4 bell mouth fixing screws, then remove the

bell mouth.

Drain pan (See Photo 7)

(6) Remove the 4 drain pan fixing screws, then remove the

drain pan.

Photo 7

Screws

Control box cover

Terminal block (TB5)

Terminal block (TB4)

Indoor controller board (I.B)

Lead wire cover

fixing screws

Connector cover

Room temperature thermistor (TH1)

Drain pan

fixing screws

Connector box

fixing screw

Bell mouth

fixing screws

Drain pan

fixing screws

OCH522

Содержание MR. SLIM SLZ Series

Страница 1: ...IR FLOW SYSTEM 33 11 DISASSEMBLY PROCEDURE 35 No OCH522 Indoor unit Model Name Service Ref SLZ M15FA TH SLZ M15FA TH ER SLZ M25FA TH SLZ M25FA TH ER SLZ M35FA TH SLZ M35FA TH ER SLZ M50FA TH SLZ M50FA TH ER SLZ M60FA TH SLZ M60FA TH ER INDOOR UNIT Model name indication SLZ M15FA SLZ M25FA SLZ M35FA SLZ M50FA SLZ M60FA February 2018 Note This manual describes service data of the indoor units only P...

Страница 2: ...E72VA MXZ 4E83VAHZ MXZ 4E83VA MXZ 5E102VA OBH723 OBB723 MXZ 6D122VA2 MXZ 2F33VF MXZ 2F42VF MXZ 2F53VF H MXZ 3F54VF MXZ 3F68VF MXZ 4F72VF OBH626 OBH790 SUZ KA25VA6 SUZ KA35VA6 SUZ KA50VA6 SUZ KA60VA6 TCB004 TCH004 PUHZ ZRP71VHA OCH527 OCB527 PUHZ ZRP100V YKA3 PUHZ ZRP125V YKA3 PUHZ ZRP140V YKA3 OCH645 OCB645 These outdoor units can be connected to SLZ M15FA TH and SLZ M15FA ER TH ...

Страница 3: ...ustment gauge Gauge manifold Torque wrench Gas leak detector Charge hose Tools for R32 R410A Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If large amount of mineral oil enters that can cause deterio ration of refrigerant oil...

Страница 4: ...n case of brazing the refrigerant pipes 12 When performing brazing work be sure to ventilate the room sufficiently Make sure that there are no hazardous or flammable materials nearby When performing the work in a closed room small room or similar location make sure that there are no refriger ant leaks before performing the work If refrigerant leaks and accumulates it may ignite or poisonous gases ...

Страница 5: ...he Refrigeration Equipment Where electrical components are being changed they shall be fit for the purpose and to the correct specification At all times the manufacturer s maintenance and service guidelines shall be followed If in doubt consult the manufacturer s technical department for assistance The following checks shall be applied to installations using flammable refrigerants The charge size ...

Страница 6: ...e conventional procedures shall be used However for flammable refrigerants it is important that best practice is followed since flammability is a considera tion The following procedure shall be adhered to remove refrigerant purge the circuit with inert gas evacuate purge again with inert gas open the circuit by cutting or brazing The refrigerant charge shall be recovered into the correct recovery ...

Страница 7: ...transferring refrigerant into cylinders ensure that only appropriate refrig erant recovery cylinders are employed Ensure that the correct number of cylinders for holding the total system charge are available All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant i e special cylinders for the recovery of refrigerant Cylinders shall be complete with p...

Страница 8: ...itting specifications UNF1 2 Use high tension side pressure of 5 3MPa G or over 2 Charge hose Use pressure performance of 5 09MPa G or over 3 Electronic weighing scale 4 Gas leak detector Use the detector for R134a R407 R410A or R32 5 Adaptor for reverse flow check Attach on vacuum pump 6 Refrigerant charge base 7 Refrigerant cylinder R32 or R410A refrigerant Cylinder with syphon 8 Refrigerant rec...

Страница 9: ...ing Vane Disperses airflow up and down and adjusts the angle of airflow direction Grille Filter Removes dust and pollutants from drawn in air Horizontal Air Outlet Sets horizontal airflow automatically during cooling or dehumidifying Air Intake Draws in air from room ...

Страница 10: ... Auto Fan speed setting Set Temperature buttons Set Time button Sets the time Airflow button Changes up down airflow direction Mode button Changes operation mode Timer ON button Timer OFF button OFF ON button Fan Speed button Changes fan speed SET SEND button CANCEL button Up Down buttons Menu button i see button Reset button Remote controller display Battery replacement indicator Transmission are...

Страница 11: ...he indoor unit 1 ON OFF button This lamp lights up in green while the unit is in operation It blinks while the remote controller is starting up or when there is an error Press to save the setting Main display Press to change the operation mode Main menu Press to move the cursor down Press to return to the previous screen Main display Press to decrease temperature Main menu Press to move the cursor...

Страница 12: ...Lossnay High power Weekly timer Restriction Maintenance Initial setting ON OFF timer Auto OFF timer Temp range Operation lock Manual vane angle Main Sub Timer Main display Contrast Display details Auto mode Administrator password Language selection Service Input maintenance info Function setting Check Self check Maintenance password Remote controller check Test run Clock Auto descending panel Menu...

Страница 13: ... vane angle for each vane to a fixed position 3D i see Sensor Use to set the following functions for 3D i see Sensor Air distribution Energy saving option Seasonal airflow Initial setting Main Sub When connecting 2 remote controllers one of them needs to be designated as a sub controller Clock Use to set the current time Main display Use to switch between Full and Basic modes for the Main display ...

Страница 14: ...t kW 0 02 0 02 0 02 0 02 0 02 0 02 0 03 0 03 0 04 0 04 Current A 0 17 0 14 0 20 0 15 0 24 0 19 0 32 0 27 0 43 0 38 Fan motor output kW 0 05 0 05 0 05 0 05 0 05 Air flow rate Low Medium High K min 7 0 6 5 6 0 6 5 7 5 8 5 6 5 8 0 9 5 7 0 9 0 11 5 7 5 11 5 13 0 Noise level Low Medium High dB 28 26 24 25 28 31 25 30 34 27 34 39 32 40 43 Dimensions Width mm UNIT 570 PANEL 625 Depth mm UNIT 570 PANEL 62...

Страница 15: ... LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz High Medium 43 SPL dB 40 LINE 50Hz NOTCH Low 32 SLZ M60FA TH SLZ M60FA TH ER NOTE The sound level is measured in an ane choic room where echoes are few when compressor stops The sound may be bigger than the indicated level in actual use due to surrounding echoes The sound level can be higher by about 2 dB than the indicated level during cooling...

Страница 16: ...5 7 5 24 5 570 88 525 Suspension bolt pitch 525 Suspension bolt pitch 576 610 Ceiling hole 7 5 24 5 7 5 24 5 B gas A liquid 313 Suspension bolt lower edge Suspension bolt M10 or W3 8 Drain pipe VP 25 connection 2 1 For remote controller terminal block Terminal block Ceiling Grille 196 6 196 188 245 10 37 5 0 133 69 127 50 92 20 Wiring entry 52 189 Models 1 Refrigerant pipe liquid 2 Refrigerant pip...

Страница 17: ...17 OCH522 17 Unit mm WIRED REMOTE CONTROLLER WIRELESS REMOTE CONTROLLER PAR SL100A E PAR 33MAA 188 64 7 66 22 19 120 120 83 5 46 ...

Страница 18: ... to the technical manuals etc LEGEND SYMBOL NAME I B DP FS MF MV TB4 TB5 TB6 TH1 TH2 TH5 OPTION PART INDOOR CONTROLLER BOARD CONNECTOR LOSSNAY CONNECTOR REMOTE SWITCH CONNECTOR HA TERMINAL A CONNECTOR CENTRALLY CONTROL CONNECTOR IT FUSE T6 3AL250V JUMPER WIRE PAIR NUMBER SETTING WITH WIRELESS REMOTE CONTROLLER POWER SUPPLY I B POWER SUPPLY WIRED REMOTE CONTROLLER COMMUNICATION INDOOR OUTDOOR DIP S...

Страница 19: ...H5 Room temperature thermistor TH1 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 M15FA TH SLZ M25FA TH SLZ M35FA TH SLZ M50FA TH SLZ M60FA TH SLZ M15FA TH ER SLZ M25FA TH ER SLZ M35FA TH ER SLZ M50FA TH ER SLZ M60FA TH ER ...

Страница 20: ...de logs and restart the unit after finishing service 3 There is no abnormality in electrical component controller board remote controller etc 1 Re check the abnormal symptom 2 Conduct troubleshooting and ascertain the cause of the trouble according to 9 4 TROUBLESHOOTING OF PROBLEMS 3 Continue to operate unit for the time being if the cause is not ascertained 4 There is no abnormality concerning o...

Страница 21: ...0 11 PB Pb Indoor unit fan motor error 12 FB Fb Indoor unit control system error memory error etc 14 PL Refrigerant circuit abnormal Output pattern B Errors detected by unit other than indoor unit outdoor unit etc Note The supported check codes may vary depending on the connected outdoor unit Wireless remote controller Wired remote controller Symptom Remark Beeper sounds OPERATION INDICATOR lamp b...

Страница 22: ... unit s protection device is not connected Reverse or open phase wiring for the outdoor unit s power terminal block 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 con...

Страница 23: ...te controller in test run mode If pipe liquid temperature is extremely low in cooling mode or high in heating mode refrigerant circuit may have defect Check pipe liquid temperature with remote controller in test run mode If there is extreme difference with actual pipe liquid temperature replace indoor controller board Turn the power off and on again to operate after checking P5 Malfunction of drai...

Страница 24: ...fective Indoor controller board is defective Defective outdoor fan control Overcharge of refrigerant Defective refrigerant circuit clogging Bypass circuit of outdoor unit is defective Cooling or drying mode 1 Check clogging of the filter Remove blockage Refer to 9 7 2 DC Fan Motor Fan Motor Indoor Controller Board Check outdoor fan motor Check operating condition of refrigerant circuit Heating mod...

Страница 25: ... disconnection or looseness of indoor unit or transmission wire of remote controller 2 Set one of the remote controllers main if there is no problem with the action above 3 Check wiring of remote controller Total wiring length max 500 m Do not use cable 3 or more The number of connecting indoor units max 16 units The number of connecting remote controller max 2 units If the cause of trouble is not...

Страница 26: ...ormal if data cannot be normally read from the nonvolatile memory of the indoor controller board 1 Defective indoor controller board 1 Replace indoor controller board E1 or E2 6201 or 6202 Remote controller control board 1 Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board Check code E1 2 Abnormal if the clock function of remote controller c...

Страница 27: ...s detected abnormality state will not be released until the main power is reset 1 Drain pump trouble 2 Drain defective Drain pump clogging Drain pipe clogging Open circuit of drain sensor side heater Contact failure of drain sensor connector Dew condensation on drain sensor Drain water trickles along lead wire Drain water waving due to filter clogging Extension piping connection difference at twin...

Страница 28: ...etting of refrigerant address for outdoor unit Set the refrigerant address to 0 For grouping control system under which 2 or more outdoor units are connected set one of the units to 0 Set refrigerant address using SW1 3 6 on outdoor controller circuit board 2 LED2 on indoor controller board is blinking When LED1 on indoor controller board is also blinking Connection failure of indoor outdoor unit ...

Страница 29: ...or MT 12 V pulse output CNV Vane motor MV 12 V pulse output J41 J42 Jumper wire Pair No setting with wireless remote controller SW2 Capacity setting LED3 Communication Indoor outdoor SWE Jumper switch Emergency operation CN32 Remote switch CN41 HA terminal A CN2L Lossnay CN01 Connect to the terminal block TB4 Indoor outdoor connecting line 220 240 V AC F1 FUSE 6 3A 250V LED1 Power supply I B CN3C ...

Страница 30: ... 4 5 ON OFF 1 2 3 4 5 ON OFF 1 2 3 4 5 SLZ M35FA SLZ M50FA ON OFF 1 2 3 4 5 SLZ M60FA J41 J42 Pair number setting with wireless remote controller 0 1 2 3 to 9 Wireless remote controller setting Control PCB setting J41 J42 Initial setting Wireless remote controller 0 Control PCB for both J41 and J42 4 pair number settings are supported The pair number settings of the wireless remote controller and ...

Страница 31: ...operly in cooling operation 3 If no water drains confirm that the check code P5 will not be displayed 10 minutes after the operation starts Note The drain pump for this model is driven by the internal DC motor of controller board so it is not possible to measure the resistance between the terminals Normal Red Black Input 13 V DC The fan starts to rotate Purple Black Abnormal check code P5 if it ou...

Страница 32: ...th the power supply on It causes trouble of the indoor controller circuit board and fan motor Self check Symptom The indoor fan cannot rotate 1 2 Wiring contact check Contact of fan motor connector CNMF Fail Power supply check Remove the connector CNMF Measure the voltage in the indoor controller circuit board TEST POINT 1 VDC between 1 and 4 of the fan connector VDC 310 340 V DC TEST POINT 2 VCC ...

Страница 33: ...relay of 1W or smaller MB Electromagnetic switch power relay for duct fan X Auxiliary relay 12 V DC LY 1F Be sure to secure insulation material by tape etc 5 Green Yellow Orange Connector 5P Indoor unit side Multiple remote controller adapter PAC SA88HA E Be sure to secure insulation material by tape etc Installation at site CN51 on indoor unit board Red Brown 1 MB Multiple remote controller adapt...

Страница 34: ...ector with the plastic tape Vane motor Horizontal vane Connector Unlocking button Vane motor 3 Set the vertical vane of the air outlet by hand slowly within the range in the table below A A Measured standard position of the grille Horizontal vane Caution Do not set the dimension out of the range Erroneous setting could cause dew drips or malfunction of unit θ Set range Standard of horizontal posit...

Страница 35: ...sen the screw from the corner of the corner panel 6 Slide the corner panel as indicated by the arrow 7 Remove the safety strap from the hook then remove the corner panel from the panel The safety strap is not equipped for the signal receiver panel and i See sensor corner panel 8 Remove the fastener then remove the corner panel Panel See Photo 3 9 Remove the 4 screws 10 Unlatch the 2 hooks Fastener...

Страница 36: ...or CN20 from the indoor controller board and disconnect the room temperature thermistor TH1 Note When fixing the thermistor make sure to fix it to the connector box using a band Photo 6 5 Removing the drain pan 1 Remove the panel Refer to procedure 2 2 Remove the room temperature thermistor TH1 Refer to procedure 4 Connector box See Photo 7 3 Remove the connector box fixing screw 4 Slide the conne...

Страница 37: ...er to procedure 4 3 Remove the drain pan Refer to procedure 5 Turbo fan See Photo 3 4 Remove the nut and washer from the turbo fan 5 Remove the turbo fan from the motor shaft Fan motor See Photo 9 6 Remove the control box cover Refer to procedure 3 7 Disconnect the fan motor cable from the CNMF on the indoor controller board 8 Remove the 2 motor lead cover fixing screws then remove the motor lead ...

Страница 38: ... Notes 1 When re attaching the drain pump make sure to use a band to fix the connector to the base plate 2 Do not give a shock to the float switch Otherwise it can cause damage or malfunction Photo 11 Photo 12 9 Removing the heat exchanger 1 Remove the panel Refer to procedure 2 2 Remove the room temperature thermistor TH1 Refer to procedure 4 3 Remove the drain pan Refer to procedure 5 4 Remove t...

Страница 39: ...39 OCH522 ...

Страница 40: ...ICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2018 MITSUBISHI ELECTRIC CORPORATION Published Feb 2018 No OCH522 Made in Japan Specifications are subject to change without notice ...

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