Mitsubishi Electric MUX-A26WV Manuale di Servizio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································32. PART NAMES AND FUNCTIONS······················33. SPECIFICATION····

10NOTE•The operation settings are memorized when 10 seconds have passed after the remote controller was operated.•If main power is cut while AUTO STAR

11TROUBLESHOOTING93. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an

129-2. Instruction of troubleshootingStartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from rem

139-3. Troubleshooting check table Operation Indicator· Flashing of the OPERATION INDICATOR lamp (on the left-hand side) indicates possible abnormalit

14AACheck of indoor fan motorIs soldered point of the connector correctly soldered?Is resistance 0 (short circuit) or ∞ (open circuit)?Yes ( 0 or ∞ )Y

15BBCheck of remote controller and receiver P.C. boardIndoor unit operates by pressing the EMERGENCY OPERATION switch, but doesn’t operate with the re

16DDHow to check mis-wiring and serial signal errorSerial signal error is indicated.(0.5-sec. ON, 0.5-sec. OFF)1. Turn OFF the power supply(indoor / o

17MSC-GA20VB -MSC-GA25VB -MSC-GA35VB -Indoor electronic control P.C. boardE1E1E1CN302Indoor coil thermistor (RT12)Room temperature thermistor (RT11)Te

18DISASSEMBLY INSTRUCTIONS10MSC-GA20VB - MSC-GA25VB - MSC-GA35VB -INDOOR UNITE1E1E1(1) Slide the sleeve and check if there is a locking lever or not.

19OPERATING PROCEDUREPHOTOS3. Removing the electrical box(1) Remove the front panel. (Refer to 1.)(2) Remove the electrical cover. (Refer to 2.)(3) Re

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20PARTS LIST1112345678E02 763 234E02 764 234E02 959 000E02 763 067E02 959 010E02 408 142E02 763 100E02 764 100E02 763 975E02 408 970E02 751

21Part No.No.Part Name202122INDOOR HEAT EXCHANGERINDOOR HEAT EXCHANGERUNION(GAS)UNION(GAS)UNION(LIQUID)111111{9.52{9.52{6.35111E02 001 504E02 661 702E

OPTIONAL PARTS2212Air cleaning filter(White bellows type)AIR CLEANING FILTER● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means o

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CCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistributed in Jan. 2005. No.OB385 6Made in JapanNew publication, effective Jan. 2005Specifica

3PART NAMES AND FUNCTIONS2INDOOR UNITMSC-GA20VB - MSC-GA25VB - MSC-GA35VB -E1E1E1Emergency operation switchFanCatechin air filter(With deodorizer)Air

4ACCESSORIESMSC-GA20VB -MSC-GA25VB -MSC-GA35VB -E1E1E1Installation plateInstallation plate fixing screw 4 o 25 mmRemote controller holderFixing screw

5SPECIFICATION3Indoor modelFunctionIndoor unit power supplyAir flow(High/Med. /Low )Power outletRunning currentPower inputPower factorFan motor curren

6NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETERESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30NC-20N

7OUTLINES AND DIMENSIONS5MSC-GA20VB -MSC-GA25VB -E1E1INDOOR UNIT244242 57 or more901103014960627860815783Power supply cordLead to right 1.0mLead to le

8REFRIGERANT SYSTEM DIAGRAM7MSC-GA20VB - MSC-GA25VB - MSC-GA35VB -E1E1E1INDOOR UNITIndoorheatexchangerRoom temperaturethermistorRT11Refrigerant pipe [

9SERVICE FUNCTIONS88-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATIONA maximum of 4 indoor units with wireless remote controllers can be used in a