Mitsubishi Electric MSZ-SF20VA - E1 Manual de servicio

CONTENTS1. TECHNICAL CHANGES ··································· 22. PART NAMES AND FUNCTIONS ····················· 33. SPECIFICATION ················

108-3. AUTO RESTART FUNCTIONWhen the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed

11WIRELESS REMOTE CONTROLLERNOTE: Last setting will be stored after the unit is turned OFF with the remote controller. Indoor unit receives the signal

129-2. 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 mo

139-5. AUTO VANE OPERATION1. Horizontal vane(1) Vane motor driveThese models are equipped with a stepping motor for the horizontal vane. The rotating

149-6. TIMER OPERATION1. How to set the time (1) Check that the current time is set correctly.NOTE: Timer operation will not work without setting the

159-7. 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 se

16(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 l

17RESET buttonInsert the negative pole of the batteries first. Check if the polarity of the batteries is correct.NOTE: 1. If RESET button is not press

1810-2. FAILURE MODE RECALL FUNCTIONOutline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even thoug

192. Indoor unit failure mode tableUpper lamp of OP-ERATION INDICA-TOR lampAbnormal point (Failure mode) Condition Correspondence Not lighted Normal

2MSZ-SF15VA - E1MSZ-SF20VA - E1 1. New modelTECHNICAL CHANGES1

2010-3. INSTRUCTION OF TROUBLESHOOTINGIndoor unit oper-ates.Outdoor unit does not operate.If blinking of OPERATION INDI-CATOR lamp cannot be checked,

2110-4. TROUBLESHOOTING CHECK TABLEBefore taking measures, make sure that the symptom reappears for accurate troubleshooting.When the indoor unit has

22OPERATION INDICATOR No. Abnormal point Operation indicator lamp Symptom Condition Correspondence 1MXZ type Operation mode settingUpper lamp ligh

23 A Check of indoor fan motor10-6. TROUBLESHOOTING FLOWThe indoor fan motor error has occurred, and the indoor fan does not operate.Turn OFF the po

24 B Check of remote controller and indoor electronic control P.C. board Check if the remote controller is exclusive for this air conditioner.Does th

25 C Check of indoor P.C. board and indoor fan motorTurn OFF the power supply.Remove indoor fan motor connector CN211 and vane motor connector CN151

26 D How to check miswiring and serial signal errorTurn OFF inverter-controlled lighting equipment.Turn OFF the power supply and then turn ON again.P

27 E Electromagnetic noise enters into TV sets or radiosYesIs the unit earthed?NoEarth the unit.YesIs the distance between the antennas and the indo

28Indoor fan motor(CN211) (+) DC0V or DC15V (+) 2-6V 15VDC (–) Fiducial terminal of cathode side on measuring high-voltage DC (+) 325VDCRoom temperatu

29MSZ-SF15VA MSZ-SF20VANOTE: Turn OFF power supply before disassembling.OPERATING PROCEDURE PHOTOS1. Removing the panel(1) Remove the horizontal van

3ACCESSORIESInstallation plate 1Installation plate fi xing screw 4 × 25 mm 5Remote controller holder 1Fixing screw for 3.5 × 16 mm (Black) 2Battery (

30OPERATING PROCEDURE PHOTOS2. Removing the indoor electronic control P.C. board, receiver P.C. board, display P.C. board, and SW P.C. board(1) Remove

31OPERATING PROCEDURE PHOTOS3. Removing the electrical box(1) Remove the panel (refer to 1.) and the corner box.(2) Remove the indoor/outdoor connecti

OPERATING PROCEDURE PHOTOS7. Removing the indoor fan motor and the line flow fan(1) Remove the panel (refer to 1.) and the corner box.(2) Remove the S

4Indoor model MSZ-SF15VA MSZ-SF20VAPower supply Single phase 230 V, 50 HzElectrical dataPower input 1CoolingW17 19Heating 17 19Running current 1Co

5MSZ-SF15VA90807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BARB

6Unit: mmMSZ-SF15VA MSZ-SF20VAOUTLINES AND DIMENSIONS51120 Oblong holeInstallation plate1120 Oblong holeIndoor unitWall hole 65Ø61295155784533

7MSZ-SF15VA MSZ-SF20VAWIRING DIAGRAM6

8IndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Flared connectionRefrigerant pipe ø9.52(with heat insulator)Refrigerant pipe ø6.35(

98-1. TIMER SHORT MODEFor service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.The time will be sho