Mitsubishi MSZ-SF50VE- Manuals

5 Indoor model MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE Power supply Single phase 230 V, 50 Hz Electrical data Power input 1 Cooling W 18 22 Heating 24 27 35 Running current 1 Cooling A 0.16 0.18 Heating 0.20 0.22 0.27 Fan motor Model RC0J21-AA Current 1 Cooling A 0.16 0.18 Heating 0.20 0.22 0.27...

6 MSZ-SF25VE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz COOLING FUNCTION SPL(dB(A)) LINE Super High FAN SPEED HEATING 42 46 NC-10 MSZ-SF35VE 90 80 70 60 50 40...

7 Unit: mm MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE 225 225 162.5 162.5 3.5 42 41 87.5 87.5 331.5 309.5 215.5 257 258 22 235 236 67.5 89.5 58 92 47 108.5 100 7 ( ) 80 60 193 18 71 47 5 195 58 71 45 45 299 577 160 61 798 778 10 216.5 Piping Insulation Φ 37 O.D Liquid line Φ 6.35 - 0.39m (Flared co...

8 MSZ-SF25VE MSZ-SF42VE WIRING DIAGRAM 6 MSZ-SF35VE MSZ-SF50VE OBH600B

9 Indoor heat exchanger Flared connection Room temperaturethermistorRT11 Flared connection Refrigerant pipe ø9.52 ( MSZ-SF25/35/42VE ) ø12.7 ( MSZ-SF50VE ) (with heat insulator) Refrigerant pipe ø6.35(with heat insulator) Indoor coil thermistor RT12 (main) Indoor coil thermistor RT13 (sub) Refrigera...

10 8-1. TIMER SHORT MODE For service, the following set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.(Refer to 10-7.)Set time: 3 minutes → 3 seconds (It takes 3 minutes for the compressor to start operation. However, the starting time is shortened by sho...

11 8-3. AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C. board. “AUTO RESTART FUNCTION” automatically starts operation in the same mode just before the s...

12 WIRELESS REMOTE CONTROLLER MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE MICROPROCESSOR CONTROL 9 NOTE : Last setting will be stored after the unit is turned OFF with the remote controller. Indoor unit receives the signal of the remote controller with beeps. Signal transmitting section Operation di...

13 9-2. DRY ( ) OPERATION (1) Press OPERATE/STOP (ON/OFF) 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. Coil frost prevention Coil frost preve...

14 NOTE 2 FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT: MXZ series Multi system air conditioner can connect two or more indoor units with one outdoor unit. • When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the others for heating, the op...

15 9-7. TIMER OPERATION 1. How to set the time (1) Check that the current time is set correctly. NOTE: Timer operation will not work without setting the current time. Initially “0:00” blinks at the current time display of TIME MONITOR, so set the current time correctly with CLOCK SET button. How to ...

16 9-8. WEEKLY TIMER OPERATION • A maximum of 4 ON or OFF timers can be set for individual days of the week.• A maximum of 28 ON or OFF timers can be set for a week. * Make sure that the current time and day are set correctly. (1) Press button to enter the weekly timer setting mode. (2) Press and bu...

17 (5) Press button to turn the weekly timer ON. ( lights.) •When the weekly timer is ON, the day of the week whose timer setting is complete, will light. Press button again to turn the weekly timer OFF. ( goes out.) NOTE: The saved settings will not be cleared when the weekly timer is turned OFF. 2...

18 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 f...

20 2. Indoor unit failure mode table The left lamp of OPERATION INDI- CATOR lamp Abnormal point (Failure mode) Condition Remedy Not lighted Normal — — 1-time fl ash every 0.5-second Room temperature thermistor The room temperature thermistor short or open circuit is detected every 8 seconds dur-ing ...

24 A Check of indoor fan motor 10-6. TROUBLESHOOTING FLOW The indoor fan motor error has occurred, and the indoor fan does not operate. Turn OFF the power supply. Is there any foreign matter that interferes the rotation of the line fl ow fan? Yes No Remove the foreign matter and adjust the line fl o...

26 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 motor connector CN151 from the indoor electronic control P.C. board and turn ON the power supply. Does the unit operate with the remote contro...

27 D How to check miswiring and serial signal error Turn OFF inverter-controlled lighting equipment.Turn OFF the power supply and then turn ON again.Press EMERGENCY OPERATION switch. ••• A Is serial signal error indicated 6 minutes later? B Yes Reinstall either the unit or the light away from each o...

28 Turn OFF inverter-controlled lighting equipment.Turn OFF the power supply and then turn ON again.Press EMERGENCY OPERATION switch. • • • A Is serial signal error indicated 6 minutes later? B Yes Reinstall either the unit or the light away from each other.Attach a fi lter on remote control receiv-...

29 E Electromagnetic noise enters into TV sets or radios Yes Is the unit earthed? No Earth the unit. Yes Is the distance between the antennas and the indoor unit within 3 m, or is the distance between the antennas and the outdoor unit within 3 m? No Extend the distance between the antennas and the i...

MSZ-SF25VE MSZ-SF35VE MSZ-SF42VE MSZ-SF50VE NOTE: Turn OFF power supply before disassembly. OPERATING PROCEDURE PHOTOS 1. Removing the panel (1) Remove the horizontal vanes. (2) Remove the screw caps of the panel. Remove the screws of the panel. (3) Unhook the lower part ( ) of the panel. (4) Pull t...

OPERATING PROCEDURE PHOTOS 2. Remove the indoor electrical box (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/outdoorconnecting wire. (3) Remove the earth wire connected to the indoor heat exchanger from the e...

OPERATING PROCEDURE PHOTOS 4. Removing the nozzle assembly (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....

OPERATING PROCEDURE PHOTOS 6. Removing the indoor fan motor, the indoor coil thermistor and the line flow fan (1) Remove the panel (Refer to 1.) and the corner box right. (2) Remove the indoor electronic control P.C. board holder, the electrical box and the nozzle assembly. (3) Remove the screws fix...