Mitsubishi MSZ-GE71VA- User Manual

Page 3 - TECHNICAL CHANGES

3 MUZ-GE25VA - E1 MUZ-GE25VAH - E1 MUZ-GE35VA - E1 MUZ-GE35VAH - E1 MUZ-GE42VA - E1 MUZ-GE42VAH - E1 MUZ-GE50VA - E1 MUZ-GE50VAH - E1 MUZ-GE60VA - E1 MUZ-GE71VA - E1 1. New model TECHNICAL CHANGES 1

Page 4 - PART NAMES AND FUNCTIONS; ACCESSORIES

4 Air outlet Drain outlet Piping Drain hose Air inlet (back and side) MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAH MUZ-GE50VA MUZ-GE50VAH Piping Air outlet Air inlet (back and side) Drain hose Drain outlet (GE50VA) PART NAMES AND FUNCTIONS 2 ACCESSORIES Model MUZ-GE25/35/42VA...

Page 5 - NOTE; SPECIFICATION

5 Outdoor model MUZ- GE25VA MUZ- GE25VAH MUZ- GE35VA MUZ- GE35VAH MUZ- GE42VA MUZ- GE42VAH MUZ- GE50VA MUZ- GE50VAH MUZ- GE60VA MUZ- GE71VA Power supply Single phase, 230 V, 50 Hz Capacity Rated frequency (Min.-Max.) Cooling kW 2.5 (1.1 - 3.5) 3.5 (1.1 - 4.0) 4.2 (0.9 - 4.8) 5.0 (1.4 - 5.5) 6.0 (1.5...

Page 6 - Specifi cations and rating conditions of main electric parts

6 Specifi cations and rating conditions of main electric parts Model Item MUZ- GE25VA MUZ- GE25VAH MUZ- GE35VA MUZ- GE35VAH MUZ- GE42VA MUZ- GE42VAH MUZ- GE50VA MUZ- GE50VAH MUZ- GE60VA MUZ- GE71VA Current transformer (CT) 20 A — Smoothing capacitor (C61, C62, C63) 620 μ F 420 V — (CB1, CB2, CB3) — ...

Page 7 - NOISE CRITERIA CURVES

7 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, 0dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz COOLING FUNCTION SPL(dB(A)) LINE HEATING 47 48 NC-10 MUZ-GE25VA MUZ-GE25VAH 90 80 70 60 50 40 30 20 10 63 125 25...

Page 9 - OUTLINES AND DIMENSIONS

9 Unit: mm MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAHMUZ-GE42VA MUZ-GE42VAH 10 69 800 302.5 500 Bolt pitch for installation 150 22.3 Handle 550 280 164.5 99.5 170.5 23 Service panel Service port 285 344.5 44 400 Air in Air out Air in 17.5 Bolt pitch for installation 304~325 40 Liquid refrigerant ...

Page 11 - WIRING DIAGRAM

Page 18 - REFRIGERANT SYSTEM DIAGRAM

18 Unit: mm MUZ-GE25VA MUZ-GE25VAH Outdoor heat exchanger Flared connection Defrost thermistor RT61 DischargetemperaturethermistorRT62 Flared connection Stop valve (with strainar) Stop valve(with service port) Refrigerant flow in cooling Compressor 4-way valve Refrigerant flow in heating Refrigerant...

Page 20 - MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

20 Max. Length A Max. Height difference B Indoorunit Outdoor unit MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE Refrigerant piping: m Piping size O.D: mm Max. Length A Max. Height difference B Gas Liquid MUZ-GE25/35/42 20 12 9.52 6.35 MUZ-GE50 30 15 12.7 MUZ-GE60 15.88 MUZ-GE71 9.52 ADDI...

Page 21 - INDOOR UNIT; PERFORMANCE CURVES

21 The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating condi-tions vary according to the areas where these units are installed, the following information has been provided to clarify the operating characteristics of the air conditio...

Page 24 - Outdoor low pressure; COOL operation; -4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

24 Correction of Cooling capacity Capacity correction factors Correction of Cooling input Input correction factors Correction of Heating capacity Capacity correction factors MUZ-GE60VA Correction of Heating input Capacity correction factors Correction of Cooling capacity Capacity correction factors ...

Page 25 - Outdoor unit current

25 NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system)The conversion factor is: 1 (MPa [Gauge]) = 10.2 (kgf/cm 2 [Gauge]) MUZ-GE50VA MUZ-GE50VAH MUZ-GE60VA MUZ-GE71VA Ambient temperature(°C)Ambient humidity(%) 0.3 0.4 0.5 0.6 0.7 15 20 25 30 35 5...

Page 26 - HEAT operation

26 0 5 10 15 20 25 3.0 3.5 4.0 4.5 5.0 5.5 0 5 10 15 20 25 6 8 10 12 4.0 4.5 5.0 5.5 0 5 10 15 20 25 Ambient temperature (°C) O ut d o o r cur rent (A ) MUZ-GE60VA MUZ-GE71VA 2.1 2.0 2.2 2.3 2.4 2.5 0 5 10 15 20 25 Ambient temperature (°C) O ut d o o r cur rent (A ) 2.8 3.0 3.2 3.4 3.6 3.8 0 5 10 15...

Page 27 - PERFORMANCE DATA COOL operation a; t Rated frequency

27 PERFORMANCE DATA COOL operation a t Rated frequency MUZ-GE25VA MUZ-GE25VAH CAPACITY: 2.5 kW SHF: 0.96 INPUT: 545 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 21 25 27 30 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 2.94 2.29 0.78 436 2.81 2.19 0.78 458 2.70 2.11 0.78 4...

Page 39 - PERFORMANCE DATA HEAT operation at Rated frequency

39 PERFORMANCE DATA HEAT operation at Rated frequency MUZ-GE25VA MUZ-GE25VAH CAPACITY: 3.2 kW INPUT: 700 W INDOOR DB (°C) OUTDOOR WB (°C) -10 -5 0 5 10 15 20 Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 2.02 455 2.43 546 2.85 616 3.26 665 3.68 707 4.06 728 4.48 742 21 1.92 490 2.30 581...

Page 40 - -3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR; ACTUATOR CONTROL

40 MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAHMUZ-GE50VA MUZ-GE50VAH MUZ-GE60VA MUZ-GE71VA 9-2. R.V. COIL CONTROL Heating . . . . . . . . . . . . . . . . . ON Cooling . . . . . . . . . . . . . . . . . OFFDry . . . . . . . . . . . . . . . . . . . . OFF NOTE: The 4-way valve r...

Page 41 - SERVICE FUNCTIONS; TROUBLESHOOTING

41 10-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> To change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P.C. board. (Refer to 11-6-1.) Jumper wire Defrost fi nish temperature ( °C ) MUZ-GE25/35/42 MUZ-GE50 MUZ-GE60/71 JS Soldered (In...

Page 44 - Outdoor unit failure mode table

44 3. Outdoor unit failure mode table The upper lamp of OPERATION INDICATOR lamp (Indoor unit) Abnormal point (Failure mode / protection) LED indication (Outdoor P.C. board) Condition Correspondence Indoor/outdoor unit failure mode recall function Outdoor unit failure mode recall function OFF None (...

Page 47 - the balance of voltage

47 11-5. TROUBLESHOOTING FLOW Are the voltages balanced? Disconnect the connector between compressor and the intelligent power module (IPM). Replace the inverter P.C. board. Check the voltage between terminals. Check the compressor. See 11-5. “Check of compressor”. No Yes See 11-5. “Check of open ph...

Page 49 - G Check of outdoor thermistors; Unit operates COOL mode even if it is set to HEAT mode.

49 G Check of outdoor thermistors H Check of R.V. coil Thermistor Symbol Connector, Pin No. Board Defrost RT61 Between CN641 pin1 and pin2 Inverter P.C. board Discharge temperature RT62 Between CN641 pin3 and pin4 Fin temperature RT64 Between CN642 pin1 and pin2 Ambient temperature RT65 Between CN64...

Page 50 - I Check of outdoor fan motor

50 I Check of outdoor fan motor Is the resistance of outdoor fan motor normal?(Refer to 11-4.) Replace the outdoor fan motor. Replace the inverter P.C. board. No Yes Disconnect CN932 from the inverter P.C. board, and measure the resistance of the outdoor fan motor. MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA ...

Page 51 - J Check of power supply

51 J Check of power supply Is there voltage 230 VAC between the indoor terminal block S1 and S2? No Yes Replace the indoor electronic control P.C. board. Rectify indoor/outdoor connecting wire. Yes If light up, OK.If fl ash, refer to 11-3. Does The upper lamp of OPERATION INDICATOR lamp on the indoo...

Page 54 - M How to check miswiring and serial signal error

54 M How to check miswiring and serial signal error MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAHMUZ-GE50VA MUZ-GE50VAH 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 betwee...

Page 56 - N Electromagnetic noise enters into TV sets or radios

56 N 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...

Page 57 - O Check of defrost heater

57 O Check of defrost heater Check the following points before checking electric continuity.1. Does the resistance of ambient temperature thermistor have the characteristics? Refer to 11-6.1.2. Is the resistance of defrost heater normal? Refer to 11-4.3. Does the heater protector remain conducted (n...

Page 61 - OPERATING PROCEDURE; Removing the cabinet; DISASSEMBLY INSTRUCTIONS

61 12-1. MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAH NOTE : Turn OFF power supply before disassembling. OPERATING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screw fixing the service panel.(2) Pull down the service panel and remove it. (3) Disconnect the power su...

Page 62 - Photo 3

62 OPERATING PROCEDURE PHOTOS 2. Removing the inverter assembly, inverter P.C. board (1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the lead wire to the reactor and the following con- nectors: <Inverter P.C. board> CN721 (R.V. coil)CN722 (Defrost heater)CN932 (Fan motor)CN641 (...

Page 63 - Removing outdoor fan motor

63 OPERATING PROCEDURE PHOTOS 5. Removing outdoor fan motor (1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the following connectors: <Inverter P.C. board> CN932 (Fan motor) (3) Remove the propeller nut. (Photo 7)(4) Remove the propeller. (Photo 7)(5) Remove the screws fixing th...

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN © Copyright 2008 MITSUBISHI ELECTRIC CO.,LTD Distributed in Jun. 2010. No. OBH516 REVISED EDITION-C 5Distributed in Oct. 2009. No. OBH516 REVISED EDITION-B 5Distributed in Dec. 2008. No. OBH516 REVISED EDITION-A 5Distribu...

Mitsubishi MSZ-GE71VA- User Manual

Table of Contents:

Summary

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