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OUTLINES AND DIMENSIONS

258

162

7.5

315

255.5

2.5

173

414.5

253

791

1068

1100

325

Air out

Air in

Insulation

[

Drain hose

[

(Connected part O.D)

Installation plate

Wall hole

[

Wireless remote controller

Installation plate

Indoor unit

{

Liquid line

[

6.35- 0.5m

Gas line

[

12-0.43m

Insulation

[

50 O.D

[

32 I.D

Power supply cord
Lead to right 2.0m
Lead to left 1.0m

INDOOR UNIT

MSH-CB50VB

Unit: mm

OB440-1.qxp 05.12.6 9:20 AM Page 5

Содержание MSH-CB50VB- E1

Страница 1: ...SYSTEM DIAGRAM 6 8 SERVICE FUNCTIONS 7 9 TROUBLESHOOTING 9 10 DISASSEMBLY INSTRUCTIONS 17 11 PARTS LIST 19 12 OPTIONAL PARTS 21 Wireless type Models MSH CB50VB E1 No OB440 SPLIT TYPE HEAT PUMP AIR CONDITIONERS MSH CB50VB NOTE This service manual describes technical data of the indoor unit Outdoor unit service manual MUH GA VB Series OB368 SERVICE MANUAL INDOOR UNIT ...

Страница 2: ...ter option White bellows type Horizontal vane Vertical vanes Catechin air filter Remote control receiving section Front panel MSH CB50VB MSH GA50VB MSH CB50VB 1 Panel logo has been changed E1 E1 ACCESSORIES Indoor unit 1 2 3 4 5 6 7 Installation plate Installation plate fixing screw 4 o 25 mm Remote controller holder Fixing screw for 3 o 3 5 o 1 6 mm Black Battery AAA for remote controller Wireles...

Страница 3: ...id Signal transmitting section Operation display section OPERATE STOP ON OFF button TEMPERATURE buttons OPERATION SELECT button FAN SPEED CONTROL button OFF TIMER button HR button MIN button TIME SET button ON TIMER button RESET button ECONO COOL button VANE button Horizontal vane button CLOCK SET button LONG button WIDE VANE button Vertical vane button Indication of remote controller model is on ...

Страница 4: ...Power outlet Running current Power input Auxiliary heater Power factor Fan motor current Model Winding resistance at 20 Dimensions WOHOD Weight Air direction Sound level High Med Low Fan speed High Med Low Fan speed regulator Remote controller model K h A A W A kW A mm kg dB rpm MSH CB50VB Single phase 230V 50Hz 768 642 528 10 0 3 60 87 0 30 RC4V32 AA WHT BLK 293 BLK RED 146 1 100O325O258 16 5 42 ...

Страница 5: ...1100 325 Air out Air in Insulation 28 Drain hose 16 Connected part O D Installation plate Wall hole 75 Wireless remote controller Installation plate Indoor unit Liquid line 6 35 0 5m Gas line 12 0 43m Insulation 50 O D 32 I D Power supply cord Lead to right 2 0m Lead to left 1 0m INDOOR UNIT MSH CB50VB Unit mm ...

Страница 6: ...3 Symbols below indicate Connector Terminal block NOTES SYMBOL C11 F11 HIC1 MF NAME INDOOR FAN CAPACITOR FUSE T3 15AL250V DC DC CONVERTER INDOOR FAN MOTOR INNER FUSE SYMBOL MV1 MV2 NR11 RT11 NAME VANE MOTOR HORIZONTAL VANE MOTOR VERTICAL VARISTOR ROOM TEMPERATURE THERMISTOR SYMBOL RT12 SR141 TB NAME INDOOR COIL THERMISTOR SOLID STATE RELAY TERMINAL BLOCK TB TAB12 3 3 REMOTE CONTROLLER RECEIVER P C...

Страница 7: ...r P C board Remove batteries before modification The board has a print as shown below 8 1 TIMER SHORT MODE For service set time can be shortened by short circuit of JPG and JPS on the electronic control P C board The time will be shortened as follows Set time 1 minute 1 second Set time 3 minute 3 second It takes 3 minutes for the compressor to start operation However the starting time is shortened...

Страница 8: ...he remote controller was operated with the remote controller If main power is turned off or a power failure occurs while AUTO START STOP timer is active the timer setting is cancelled If the unit has been off with the remote controller before power failure the auto restart function does not work as the power button of the remote controller is off To prevent breaker off due to the rush of starting ...

Страница 9: ...ATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality To make sure check how many times the abnormality indication is flashing on and off before starting service work 2 Before servicing check that the connector and terminal are connected properly 3 If the electronic control P C board is supposed to be defective check the copper foil pattern for disconnection and...

Страница 10: ...room temp erature indoor coil thermistor 3 time flash Cause Indoor unit Trouble of indoor fan motor 6 time flash Cause Outdoor unit Trouble of thermistor in outdoor unit 7 time flash Cause Outdoor unit Trouble of outdoor control system Refer to 9 5 D How to check mis wiring When outdoor unit doesn t work Check room temperature thermistor and indoor coil thermis tor Refer to 9 6 Test point diagram ...

Страница 11: ... refrigerant Check the deicer P C board Refer to Check of outdoor thermistor Refer to service manual OB368 Check the deicer P C board Refer to service manual OB368 Refer to 9 5 D How to check mis wiring 3 Indoor fan motor Abnormal point Outdoor unit does not operate Room temperature thermistor 2 time flash 2 5 second OFF Detect Indoor coil room temperature thermistor short or open circuit every 8 ...

Страница 12: ...l thermistor RT12 main RT13 sub Horizontal vane motor MV1 Vertical vane motor MV2 Motor part Sensor part Measure the resistance between the terminals with a tester Part temperature 10 C 30 C Color of lead wire BRN YLW YLW GRY Normal 4 5 5 5V Measure the voltage power ON When fan revolved one time 0V 5V 0V Approx Normal 282 306 Measure the resistance between the terminal with a tester Part temperat...

Страница 13: ...een receiver P C board connector CN301 No 1 and No 3 when the remote controller button is pressed Is the voltage approx 4V DC Replace the indoor electronic control P C board Replace the receiver P C board Replace the remote controller Reinstall the unit away from lights Attach a filter on receiving part Yes 0 or No others Yes No Yes No Switch on the remote controller Is LCD display on the the remo...

Страница 14: ...e varistor Yes Turn OFF the power supply Remove indoor fan motor connector CN211 and vane motor connector CN151 from the indoor electronic control P C board and turn ON the power supply No Does the unit operate with the remote controller Does the OPERATION INDICATOR lamp light up by pressing the EMERGENCY OPERATION switch Yes No Turn OFF the power supply Turn OFF the power supply Varistor NR11 Ind...

Страница 15: ...r contact or wire disconnection Make them sure Replace the indoor electronic control P C board Is there 230V AC between L N on the outdoor terminal block No Check the outdoor power supply and connection of wiring Yes No Replace the deicer P C board Yes No Make the wiring between CN730 on the deicer P C board and outdoor terminal block correct Replace the deicer P C board Yes Is there 5V DC between...

Страница 16: ...put 230V AC 5V DC Indoor coil thermistor RT12 main Timer short mode point JPS JPG Refer to 8 1 Emergency operation switch 12V DC Indoor coil thermistor RT12 main RT13 sub Room temperature thermistor RT11 Resistance k Room temperature ther mistor RT11 Release of Auto restart function Solder jumper wire to JR07 Refer to 8 3 R132 Receiver P C board ...

Страница 17: ... Remove the V A clamp 4 Remove the screw of the terminal block 5 Remove the screws of the ground wire 6 Disconnect all the connectors and all the lead wires on the electronic control P C board 7 Remove the R L holder 8 Remove the electronic control P C board 9 Open the R L holder remove the receiver P C board and the display P C board 1 Slide the sleeve and check if there is a locking lever or not...

Страница 18: ...e drain hose from the nozzle assembly and remove the nozzle assembly 6 Remove the screws of the vane motor and disconnect the connector 7 Remove the vane motor Screws fixing the fan motor 5 Removing the line flow fan and the indoor fan motor 1 Remove the front panel Refer to 1 2 Remove the electrical box Refer to 3 3 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 4...

Страница 19: ...RNER BOX RIGHT LAMP PANEL Symbol in Wiring Diagram Q ty unit Including No 4 5 6 4PCS SET 3PCS SET Remarks Part No NO Part Name 1 2 3 4 5 6 7 8 9 1 1 1 4 3 1 2 1 1 11 2 INDOOR UNIT HEAT EXCHANGER 2 4 5 7 6 1 10 8 11 12 3 E02 891 620 E02 179 667 E02 151 667 INDOOR HEAT EXCHANGER UNION GAS UNION LIQUID 12 7 6 35 10 11 12 1 1 1 11 2 INDOOR UNIT HEAT EXCHANGER 11 1 INDOOR UNIT STRUCTURAL PARTS Optional...

Страница 20: ...OL P C BOARD ROOM TEMPERATURE THERMISTOR TERMINAL BLOCK INDOOR COIL THERMISTOR VANE MOTOR SUPPORT SET RIGHT VANE MOTOR SUPPORT SET LEFT Symbol in Wiring Diagram Q ty unit T3 15AL250V RIGHT LEFT UP DOWN Remarks Part No NO Part Name F11 NR11 MF MV2 MV1 RT11 TB RT12 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 RC4V32 Including RUBBER MOUNT AUTO RESTART Including No 16 MSH CB50VB E1 Part numbers that a...

Страница 21: ...of AIR CLEANING FILTER is 4 months However when it becomes dirty replace it as soon as possible Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet DO NOT reuse AIR CLEANING FILTER even if it is washed DO NOT remove or attach AIR CLEANING FILTER during unit operation Model Part No MAC 1700FT MSH CB50VB E1 OPTIONAL PARTS ...

Страница 22: ...22 ...

Страница 23: ...23 ...

Страница 24: ... 2005 Specifications subject to change without notice C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Dec 2005 No OB440 6 Made in Japan HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODAKU TOKYO 100 8310 JAPAN ...

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