Mitsubishi Mr.Slim MSZ-D30NA- Manuals

6 Open as a rule20 inch or more ifthe front and bothsides are open 4 inch or more /8 inch or more if there are obstaclesto both sides Open as a rule20 inch or more if the back,both sides and top are open 14 in . or more 4 in . or more REQUIRED SPACE Unit: inch MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA...

7 MUZ-D30NA MUZ-D30NA- U1 MUZ-D36NA MUZ-D36NA- U1 5 WIRING DIAGRAM

11 Unit: inch MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA Outdoor heat exchanger Flared connection Defrost thermistor RT61 Service port Service port Discharge temperature thermistor RT62 Flared connection Stop valve Stop valve (with service port) Capillary tube Refrigerant flow in cooling Compressor 4-w...

12 Max. Length A Max. Height difference B Indoorunit Outdoor unit MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE Model Refrigerant piping: ft. Piping size O.D: in. Max. Length A Max. Height difference B Gas Liquid MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA 100 50 5/8 3/8 ADDITIONAL REFRIGERA...

13 MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA 7-1. PERFORMANCE DATA 1) COOLING CAPACITY Model Indoor air Outdoor intake air DB temperature ( ˚ F) IWB ( ˚ F) 75 85 95 105 115 TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC MUZ-D30NA 71 37.6 19.1 3.43 35.2 17.8 3.75 33.0 16.7 4.04 30.7 15.6 4.25 2...

14 7-2. PERFORMANCE CURVE 65 70 75 75 70 65 45 40 35 30 25 20 15 Indoor intake air DB temperature (°F) = 848 CFM Airflow 15 25 35 45 55 Outdoor intake air WB temperature (°F) 4.0 3.6 3.2 2.8 2.4 Indoor intake air DB tem perature (°F) To tal power consumption (kW) To tal capacity (1 0 3 Btu/h) 65 70 ...

16 75 70 65 75 70 65 (PSIG) (PSIG) Condensing pressure Outdoor ambient temperature 14 20 25 30 35 40 45 50 55 60 65 70 (°F) 200 500480460440420400380360340320300280260240220 Ind oor DB tem perat ure( °F) Suction pressure Outdoor ambient temperature 14 20 25 30 35 40 45 50 55 58Hz 58Hz 60 65 70(°F) 1...

18 7-5. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY MUZ-D36NA Capacity correction factors Input correction factors Input correction factors Capacity correction factors Correction of Cooling capacity The operational frequency of compressor Correction of Cooling total input The operatio...

20 MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA 8-3. Relation between main sensor and actuator Sensor Purpose Actuator Compressor LEV Outdoor fan motor R.V. coil Indoor fan motor Discharge temperature thermistor Protection ○ ○ Indoor coil temperature thermistor Cooling: Coil frost prevention ○ Heating: H...

21 MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA 9-1. PRE-HEAT CONTROL If moisture gets into the refrigerant cycle, or when refrigerant is lique fi ed and col- lected in the compressor, it may interfere the start-up of the compressor. To improve start-up condition, the compressor is energized even while i...

22 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...

29 10-4. TROUBLE CRITERION OF MAIN PARTS MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA Part name Check method and criterion Figure Defrost thermistor (RT61) ( MUZ ) Ambient temperature thermistor (RT65) Outdoor heat ex- changer temperature thermistor (RT68) Fin temperature thermistor (RT64) Measure the re...

30 10-5. TROUBLESHOOTING FLOW Measure the voltage between each lead wire leading to the compressor.U (BLK) - V (WHT)V (WHT) - W (RED) W (RED) - U (BLK)Is there output voltage? Yes No Disconnect the terminal of the compressor. 3 minutes after turn-ing on the power supply, start EMERGENCY OPERATION. I...

31 Thermistor Symbol Connector, Pin No. Board Defrost ( MUZ ) RT61 Between CN661 pin1 and pin2 Outdoor electronic control P.C. board Discharge temperature RT62 Between CN661 pin3 and pin4 Outdoor heat exchanger temperature RT68 Between CN661 pin7 and pin8 Ambient temperature RT65 Between CN663 pin1 ...

35 Turn OFF the power supply. Is there rated voltage in the power supply? Yes No Turn ON the power supply. Check the power supply. Is there rated voltage between outdoor terminal block S1 and S2? No Check the wiring. Press EMERGENCY OPERATION switch once. Does the left lamp of OPERATION INDICA-TOR l...

37 K Electromagnetic noise enters into TV sets or radios Yes Is the unit grounded? No Ground the unit. Yes Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.91 ft.? No Extend the distance between the antenn...

40 MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA 3. Outdoor power board 294-370 VDCOutput Connect to the compressorVoltage among phases: 180 V Connect to the ground CN5Primary current detection(Connect to the noise filter) CN2 Connect to the controller board (+)1-5(–): Signal transmission (To electronic c...

41 MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA NOTE : Turn OFF power supply before disassembling. OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screws of the service panel.(2) Remove the screws of the top panel.(3) Remove the screw of the valve cover.(4) Remove the service panel.(5) ...

42 OPERATING PROCEDURE PHOTOS 2. Removing the inverter assembly, P.C. board and power board (1) Remove the top panel, cabinet, service panel and the back panel. (Refer to 1.) (2) Disconnect the following connectors: <Electronic control P.C. board> CN931 and CN932 (Fan motor)CN795 (LEV)CN661 (D...

43 OPERATING PROCEDURE PHOTOS 4. Removing the defrost thermistor (MUZ), discharge temperature thermistor, outdoor heat exchanger temperature thermistor and ambient temperature thermistor (1) Remove the top panel, cabinet, service panel and the back panel. (Refer to 1.) (2) Disconnect the following c...

OPERATING PROCEDURE PHOTOS 6. Removing the compressor and 4-way valve (1) Remove the top panel, cabinet, service panel and the back panel. (Refer to 1.) (2) Remove the inverter assembly. (Refer to 2.)(3) Remove the R.V. coil. (Refer to 3.)(4) Recover gas from the refrigerant circuit. NOTE: Recover g...