Mitsubishi Electric MLZ-KA35VA Manual de servicio

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

10REFRIGERANT SYSTEM DIAGRAM7IndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Indoor coil thermistorRT13 (sub)Flared connectionRefrig

118SERVICE FUNCTIONS8-1. TIMER SHORT MODE For service, the following set time can be shortened by short circuit of JPG and JPS on the electronic cont

12JR07CN106CN111CN112 CN113C111T11CN211CN151IC101F11R111NR11NOTE:• The operation settings are memorized when 10 seconds have passed after the indoor u

139MICROPROCESSOR CONTROLWIRELESS REMOTE CONTROLLERMLZ-KA25VAMLZ-KA35VAMLZ-KA50VAON-TIMER buttonCLOCK SET buttonTIME SET buttonsFORWARD buttonBACKWARD

14Operation Indicator lampThe operation indicator at the left side of the indoor unit indicates the operation state.INDOOR UNIT DISPLAY SECTIONApproxi

15(3) Positioning To confirm the standard position, the vane moves until it touches the vane stopper. Then the vane is set to the desired angle. Con

169-7. TIMER OPERATION1. How to set the time(1) Press OPERATE/STOP (ON/OFF) button to start the air conditioner.(2) Check that the current time is set

17EMERGENCY OPERATION switchOperation indicator lampOperation mode COOL HEATSet temperature 24ºC 24ºCFan speed Medium MediumHorizontal vane Auto Aut

18TROUBLESHOOTING10INFORMATION FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT : MXZ series Multi system air conditioner can connect two or more indoo

19Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though OPERATION INDICATOR lamp indicat

2Revision A :• MLZ-KA25/35/50VA-E2 have been added.1TECHNICAL CHANGESMLZ-KA25VA-E1 MLZ-KA25VA-E2MLZ-KA35VA-E1 MLZ-KA35VA-E2MLZ-KA50VA-E1 MLZ-

20 2. Flow chart of the detailed outdoor unit failure mode recall functionOperational procedureNote1. Make sure to release the failure mode recall

213. Indoor unit failure mode tableNOTE: Blinking patterns of this mode differs from the ones of Troubleshooting check table (10-4.). 12-time flash2.5

22StartIndoor unit operates.Outdoor unit does not operate.Indoor unit does not receive the signal from remote controller.OPERATION INDICATORlamp on t

23NOTE: When the indoor unit has started operation and the above failures are detected (the first detection after the power ON), the indoor electronic

24OPERATION INDICATORNot lightedBlinkingLightedNOTE: When the indoor unit has started operation and the above failures are detected (the first detect

25 Check of indoor fan motorAWhen the left lamp of OPERATION INDICATOR lamp flashes 3 times and the right lamp of OPERATION INDICATOR lamp is no

26Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller. Check of remote controller, dis

27The unit cannot be operated with the remote controller.Also, OPERATION INDICATOR lamp does not light up by pressing EMERGENCY OPERATION switch.

28 How to check miswiring and serial signal errorDWhen the left lamp of OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second.Outdoor u

29 Check of float sensorEWhen the left lamp of OPERATION INDICATOR lamp flashes 9-time. Indoor unit and outdoor unit do not operate.Turn OFF the

32PART NAMES AND FUNCTIONSACCESSORIESAlkaline battery (AAA) for remote controllerDrain hose (with insulation)Special washer (with cushion, 4pcs) Insta

30 Electromagnetic noise enters into TV sets or radiosFNoNoNoYesYesNoNoYesYesYesIs the distance between theantennas and the indoorunit within 3m,

31Indoor coil thermistor [RT12,RT14,RT15 (MAIN), RT13 (SUB)] Room temperature thermistor (RT11)Temperature (ºC)Resistance (kΩ)MLZ-KA25VA MLZ-KA35VA

32DISASSEMBLY INSTRUCTIONS11(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the lo

333. Checks before setting in place (1) Before installing the grille, make sure the indoor unit is square with the ceiling opening (or parallel to

34OPERATING PROCEDURE PHOTOS7. Check after installing (1) Check that there are no gaps between the indoor unit and grille, and between the grille

35OPERATING PROCEDURE PHOTOSPhoto 5Photo 411. Removing the drain pump and float sensor(1) Remove the grille.(2) Remove the drain pan.(3) Disconnect th

© Copyright 2012 MITSUBISHI ELECTRIC CORPORATIONDistributed in Nov. 2012 No. OBH483 REVISED EDITION-BDistributed in Nov. 2009 No. OBH483 REVISED EDI

4SPECIFICATION3T3.15AL 250V12V 300Ω12V 300ΩERZV14D471230V 6.4WDC 12VItemModelFuseHorizontal vane motorVertical vane motorVaristorDRAIN PUMPFLOAT SENSO

54NOISE CRITERIA CURVESOCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BARBAND CENTER FREQUENCIES, HzTest conditions, Cooling: Dry-bu

6OUTLINES AND DIMENSIONS5Unit : mmINDOOR UNITMLZ-KA25VA MLZ-KA35VA MLZ-KA50VACenter of ceiling opening, suspension bolt pitch and grille are locat

76WIRING DIAGRAMMLZ-KA25VA- E1MLZ-KA35VA- E1INDOOR UNITMLZ-KA25VA- E2MLZ-KA35VA- E2OBH483B

8MLZ-KA50VA- E1MLZ-KA25VA- E3MLZ-KA35VA- E3OBH483B

9MLZ-KA50VA- E2MLZ-KA50VA- E3OBH483B