Table of Contents
Advertisement
INDOOR UNIT
SERVICE MANUAL
Models
MSZ-SF25VE
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
-
,
,
,
,
E1
E2
EN1
EN2
ER2
-
,
,
,
,
E1
E2
EN1
EN2
ER2
-
E1
,
E2
,
EN1
,
EN2
,
ER2
-
,
,
,
,
E1
E2
EN1
EN2
ER2
-
,
,
E1
EN1
ER1
-
,
,
E1
EN1
ER1
-
,
,
E1
EN1
ER1
-
E1
,
EN1
,
ER1
-
,
,
E1
EN1
ER1
-
E1
,
EN1
,
ER1
-
,
,
E1
EN1
ER1
-
,
,
E1
EN1
ER1
Revision E:
Revision E:
• MSZ-SF25/35/42/50VE3-
• MSZ-SF25/35/42/50VE3-
been added.
been added.
Please void OBH600 REVISED EDITION-D.
Please void OBH600 REVISED EDITION-D.
Outdoor unit service manual
MUZ-SF·VE(H) Series (OBH629)
MXZ-C·VA Series (OB584)
MXZ-D·VA Series (OBH626)
MXZ-8B Series (OCH480)
MXZ-E·VA Series (OBH723)
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS ····················· 5
3. SPECIFICATION ················································ 7
4. NOISE CRITERIA CURVES ···························· 10
5. OUTLINES AND DIMENSIONS ·······················11
6. WIRING DIAGRAM ·········································· 12
7. REFRIGERANT SYSTEM DIAGRAM ············· 16
8. SERVICE FUNCTIONS ··································· 17
9. MICROPROCESSOR CONTROL ··················· 19
10. TROUBLESHOOTING ····································· 27
11. DISASSEMBLY INSTRUCTIONS ···················· 40
PARTS CATALOG (OBB600)
,
,
,
,
have
have
E1
E1
EN1
EN1
ER1
ER1
No. OBH600
REVISED EDITION-E
Advertisement
Table of Contents
Related Manuals for Mitsubishi Electric MSZ-SF25VE-E1
Summary of Contents for Mitsubishi Electric MSZ-SF25VE-E1
-
Page 1: Table Of Contents
Revision E: Revision E: • MSZ-SF25/35/42/50VE3- • MSZ-SF25/35/42/50VE3- have have been added. been added. Please void OBH600 REVISED EDITION-D. Please void OBH600 REVISED EDITION-D. INDOOR UNIT No. OBH600 SERVICE MANUAL REVISED EDITION-E Models MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 Outdoor unit service manual MSZ-SF25VE3... - Page 2 Use the specifi ed refrigerant only Never use any refrigerant other than that specified. Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of. Correct refrigerant is specified in the manuals and on the spec labels provided with our products. We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by failure to follow the instructions.
-
Page 3: Msz-Sf35Ve
TECHNICAL CHANGES MSZ-SF25VE- MSZ-SF25VE- MSZ-SF35VE- MSZ-SF35VE- MSZ-SF42VE- MSZ-SF42VE- MSZ-SF50VE- MSZ-SF50VE- 1. New model MSZ-SF25VE- MSZ-SF25VE- MSZ-SF25VE- MSZ-SF25VE- MSZ-SF35VE- MSZ-SF35VE- MSZ-SF35VE- MSZ-SF35VE- MSZ-SF42VE- MSZ-SF42VE- MSZ-SF42VE- MSZ-SF42VE- MSZ-SF50VE- MSZ-SF50VE- MSZ-SF50VE- MSZ-SF50VE- 1. Indoor electronic control P.C. board has been changed. models are compatible with the outdoor units with low standby power control. Connecting these models to the MUZ-SF·VE(H)-series outdoor units enables the low standby power control. - Page 4 MSZ-SF25VE3- MSZ-SF35VE3- MSZ-SF42VE3- MSZ-SF50VE3- 1. New model MSZ-SF25VE3- MSZ-SF35VE3- MSZ-SF42VE3- MSZ-SF50VE3- 1. New model MSZ-SF25VE3- MSZ-SF35VE3- MSZ-SF42VE3- MSZ-SF50VE3- 1. New model OBH600E...
-
Page 5: Part Names And Functions
PART NAMES AND FUNCTIONS MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 Front panel Air lter (Nano platinum lter) Air inlet Air cleaning lter (Electrostatic anti-allergy enzyme lter, option) Emergency Horizontal vane operation switch Heat exchanger Air outlet Remote control Operation receiving section indicator lamp... - Page 6 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 Front panel Air lter (Air purifying lter) Air inlet Air cleaning lter (Silver-ionized air puri er lter, option) Horizontal vane Emergency operation switch Heat exchanger Air outlet Spec name plate Operation Remote control indicator lamp receiving section Remote controller ACCESSORIES Model...
-
Page 7: Specification
SPECIFICATION Indoor model MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE Power supply Single phase 230 V, 50 Hz Cooling Power input Heating Cooling 0.16 0.18 Running current Heating 0.20 0.22 0.27 Model RC0J21-AA Cooling 0.16 0.18 Current Heating 0.20 0.22 0.27 Dimensions W × H × D 798 ×... - Page 8 Indoor model MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 Power supply Single phase 230 V, 50 Hz Cooling Power input Heating Cooling 0.16 0.18 Running current Heating 0.20 0.22 0.27 Model RC0J21-AA Cooling 0.16 0.18 Current 1 Heating 0.20 0.22 0.27 Dimensions W × H × D 798 ×...
- Page 9 Indoor model MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 Power supply Single phase 230 V, 50 Hz Cooling Power input Heating Cooling 0.16 0.18 Running current Heating 0.20 0.22 0.27 Model RC0J21-AA Cooling 0.16 0.18 Current 1 Heating 0.20 0.22 0.27 Dimensions W × H × D 798 ×...
-
Page 10: Noise Criteria Curves
NOISE CRITERIA CURVES MSZ-SF25VE MSZ-SF35VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF25VE3 MSZ-SF35VE3 FAN SPEED FUNCTION SPL(dB(A)) LINE FAN SPEED FUNCTION SPL(dB(A)) LINE COOLING COOLING Super High Super High HEATING HEATING NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 NC-20 NC-20 NC-10 NC-10 1000 2000... -
Page 11: Outlines And Dimensions
OUTLINES AND DIMENSIONS MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE Unit: mm MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 11×26 Oblong hole 11×20 Oblong hole Installation plate 87.5 87.5 162.5 162.5 Indoor unit 67.5 331.5 309.5 89.5 Wall hole Ø65 Air in Air in Air in Air in... -
Page 12: Wiring Diagram
WIRING DIAGRAM MSZ-SF25VE- MSZ-SF42VE- MSZ-SF25VE- MSZ-SF42VE- OBH600E... - Page 13 MSZ-SF35VE- MSZ-SF50VE- MSZ-SF35VE- MSZ-SF50VE- OBH600E...
- Page 14 MSZ-SF25VE2- MSZ-SF42VE2- MSZ-SF35VE2- MSZ-SF50VE2- OBH600E...
- Page 15 MSZ-SF25VE3- MSZ-SF42VE3- MSZ-SF35VE3- MSZ-SF50VE3- OBH600E...
-
Page 16: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE Unit: mm MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 Refrigerant pipe ø9.52 (MSZ-SF25/35/42VE, MSZ-SF25/35/42VE2, MSZ-SF25/35/42VE3) ø12.7 (MSZ-SF50VE, MSZ-SF50VE2, MSZ-SF50VE3) (with heat insulator) Indoor coil Indoor thermistor heat RT12 (main) exchanger Flared connection Indoor coil thermistor RT13 (sub) -
Page 17: Service Functions
SERVICE FUNCTIONS MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 8-1. TIMER SHORT MODE For service, the following set time can be shortened by bridging JPG and JPS on the electronic control P.C. board. (Refer to 10-7.) •... - Page 18 8-3. HOW TO SET REMOTE CONTROLLER EXCLUSIVELY FOR A PARTICULAR INDOOR UNIT (MSZ-SF•VE2, MSZ-SF•VE3) A maximum of 4 indoor units with wireless remote controllers can be used in a room. To operate the indoor units individually with each remote controller, assign a number to each remote controller according to the number of the indoor unit.
-
Page 19: Microprocessor Control
MICROPROCESSOR CONTROL MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 WIRELESS REMOTE CONTROLLER MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE Signal transmitting section FAN SPEED CONTROL button OPERATION SELECT button Operation display section VANE CONTROL button ECONO COOL button TIME, TIMER set buttons FORWARD button BACKWARD button... - Page 20 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 Signal transmitting section FAN SPEED CONTROL button OPERATION SELECT button Operation display section VANE CONTROL button ECONO COOL button TIME, TIMER set buttons FORWARD button BACKWARD button i save button TEMPERATURE buttons WEEKLY TIMER STOP/OPERATE set button (OFF/ON) button RESET button CLOCK SET button...
- Page 21 9-2. DRY ( ) OPERATION (1) Press OPERATE/STOP (ON/OFF)/(MSZ-SF·VE, MSZ-SF·VE2)/ STOP/OPERATE (OFF/ON) (MSZ-SF·VE3) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select DRY mode with OPERATION SELECT button. (3) The set temperature is determined from the initial room temperature. 1.
- Page 22 NOTE 2 FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT: MXZ series Multi system air conditioner can connect 2 or more indoor units with 1 outdoor unit. • When you try to operate 2 or more indoor units with 1 outdoor unit simultaneously, one for the cooling and the others for heating, the operation mode of the indoor unit that operates first is selected.
- Page 23 (9) ECONO COOL ( ) operation (ECONOmical operation) When ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher by the micr- roprocessor. (However, the temperature on the LCD screen on the remote controller is not changed.) Also the horizontal vane swings in various cycle.
- Page 24 PROGRAM TIMER • OFF timer and ON timer can be used in combination. The set time that is reached first will operate first. • “ ” and “ ” (for MSZ-SF25/35/42/50VE), “ ” and “ ” (for MSZ-SF25/35/42/50VE2, MSZ-SF25/35/42/50VE3) display show the order of OFF timer and ON timer operation.
- Page 25 (3) Press , and buttons to set ON/OFF, time, and temperature. E.g. : [ON], [6:00] and [24°C] are selected. Pressing selects ON/OFF timer. Pressing Pressing adjusts the time. adjusts the tem- Pressing perature. deletes timer setting. * Hold down the button to change the time quickly. * The temperature can be set between 16°C and 31°C at weekly timer.
- Page 26 9-9. i-save ( ) OPERATION 1. How to set i-save operation (1) Press OPERATE/STOP (ON/OFF)/(MSZ-SF·VE, MSZ-SF·VE2)/ STOP/OPERATE (OFF/ON) (MSZ-SF·VE3) button. (2) Select COOL, HEAT or ECONO COOL mode. (3) Press i-save button. (4) Set the temperature, fan speed, and airfl ow direction for i-save operation. NOTE: •...
-
Page 27: Troubleshooting
TROUBLESHOOTING MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 10-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for miswiring. 2. Take care of the following during servicing 1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, and after confirm- ing the horizontal vane is closed, turn OFF the breaker and/or disconnect the power plug. - Page 28 10-2. FAILURE MODE RECALL FUNCTION Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (10-4.) disappears, the memorized failure details can be recalled. 1.
- Page 29 2. Indoor unit failure mode table The left lamp of Abnormal point OPERATION INDI- Condition Remedy (Failure mode) CATOR lamp Not lighted Normal — — The room temperature thermistor short or 1-time fl ash every Room temperature Refer to the characteristics of the room temperature open circuit is detected every 8 seconds dur- 0.5-second thermistor...
- Page 30 10-3. INSTRUCTION OF TROUBLESHOOTING Start Indoor unit operates. Indoor unit does Indoor unit oper- OPERATION INDICATOR Outdoor unit does not receive the ates. lamp on the indoor unit is not operate normally. Outdoor unit signal from re- fl ashing ON and OFF. mote controller.
- Page 31 10-4. TROUBLESHOOTING CHECK TABLE Before taking measures, make sure that the symptom reappears for accurate troubleshooting. When the indoor unit has started operation and detected an abnormality of the following condition (the first detection after the power ON), the indoor fan motor turns OFF and OPERATION INDICATOR lamp flashes. OPERATION INDICATOR Lighted Blinking...
- Page 32 OPERATION INDICATOR Abnormal Operation indicator lamp Symptom Condition Remedy point Left lamp lights and lower lamp fl ashes. The operation mode of the each indoor unit MXZ type Outdoor unit is differently set to COOL (includes DRY) and • Unify the operation mode. Operation operates but HEAT at the same time, the operation mode...
- Page 33 10-6. TROUBLESHOOTING FLOW A Check of indoor fan motor The indoor fan motor error has occurred, and the indoor fan does not operate. Turn OFF the power supply. Pay enough attention to the high voltage on the fan motor connector CN211. Turn ON the power supply, wait 5 seconds or more, and then press EMERGENCY OPERATION switch.
- Page 34 B Check of remote controller and indoor electronic control P.C. board Check if the remote controller is exclusive for this air conditioner. Press OPERATE/STOP (ON/OFF)/(MSZ- SF·VE, MSZ-SF·VE2)/ STOP/OPERATE 1 Look at the image of the signal transmitting section of (OFF/ON) (MSZ-SF·VE3) button on the the remote controller through the monitor of a digital remote controller.
- Page 35 C Check of indoor P.C. board and indoor fan motor Turn OFF the power supply. Remove indoor fan motor connector CN211 from indoor power P.C. board and vane Measure the resistance of indoor fan Short circuit: motor connector CN151 from the indoor motor.
- Page 36 D How to check miswiring and serial signal error Turn the main power supply MUZ Type OFF. Is there rated voltage in the power supply? Check the power supply. Check for incorrect indoor-outdoor connecting wiring. Was the indoor unit ever connected to the Multi (MXZ) series and operated (turned on)? The connection information to the Multi series is stored...
- Page 37 MXZ Type Turn OFF the power supply. Is there rated voltage in the power supply? Check the power supply. Turn ON the power supply. Is there rated voltage between outdoor terminal block S1 and S2? Check the wiring. Press EMERGENCY OPERATION switch once. Does the left lamp of OPERATION INDICATOR lamp light up? <Confi...
- Page 38 E Electromagnetic noise enters into TV sets or radios Is the unit earthed? Earth the unit. Is the distance between the antennas Extend the distance between the antennas and and the indoor unit within 3 m, or is the the indoor unit, and/or the antennas and the distance between the antennas and the outdoor unit.
- Page 39 10-7. TEST POINT DIAGRAM AND VOLTAGE Indoor power P.C. board, Indoor electronic control P.C. board, Receiver board, Display board, Switch board MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MSZ-SF25VE2 MSZ-SF35VE2 MSZ-SF42VE2 MSZ-SF50VE2 MSZ-SF25VE3 MSZ-SF35VE3 MSZ-SF42VE3 MSZ-SF50VE3 Fuse (F11) Varistor (NR11) Indoor fan motor Indoor power P.C.
-
Page 40: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS <"Terminal with locking mechanism" Detaching points> The terminal which has the locking mechanism can be detached as shown below. There are 2 types (Refer to (1) and (2)) of the terminal with locking mechanism. The terminal without locking mechanism can be detached by pulling it out. Check the shape of the terminal before detaching. - Page 41 OPERATING PROCEDURE PHOTOS 2. Remove the indoor electrical box Photo 2 Electrical box Earth wire (1) Remove the panel (Refer to 1.) and the corner box right. (2) Remove the screw of the V.A. clamp. Remove the V.A. clamp and the indoor/outdoor connecting wire.
- Page 42 OPERATING PROCEDURE PHOTOS 4. Removing the nozzle assembly Photo 4 (1) Remove the panel (Refer to 1.) and the corner box right. (2) Remove the indoor/outdoor connecting wire (Refer to 2.). (3) Remove the electrical cover (Refer to 2.). (4) Disconnect the following connector: <Indoor electronic control P.C.
- Page 43 OPERATING PROCEDURE PHOTOS 6. Removing the indoor fan motor, the indoor coil Photo 5 thermistor and the line flow fan Lead wire of the (1) Remove the panel (Refer to 1.) and the corner box indoor coil thermistor right. (2) Remove the indoor electronic control P.C. board holder, the electrical box and the nozzle assembly.
- Page 44 Do not pull the lead wire when removing the indoor coil thermistor. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN © Copyright 2011 MITSUBISHI ELECTRIC CORPORATION Distributed in Jan. 2016. No. OBH600 REVISED EDITION-E Distributed in Nov. 2014. No. OBH600 REVISED EDITION-D Distributed in Dec.