Mitsubishi Electric MUZ-GE25VAD - Manual

Page 2 - Use the specified refrigerant only; Never use any refrigerant other than that specified.

2 Revision A : • MUZ-GE60VA- A1 , MUZ-GE71VA- A1 and MUZ-GE80VA- A1 have been added. Revision B: • MUZ-GE33VA- A1 and MUZ-GE42VA- A1 have been added. Revision C: • MUZ-GE35VA2- A1 , MUZ-GE50VA2- A1 and MUZ-GE80VA2- A1 have been added. Use the specified refrigerant only Never use any refrigerant othe...

Page 3 - TECHNICAL CHANGES

3 TECHNICAL CHANGES 1 MUZ-GE25VA - A1 MUZ-GE33VA - A1 MUZ-GE35VA - A1 MUZ-GE42VA - A1 MUZ-GE50VA - A1 MUZ-GE60VA - A1 MUZ-GE71VA - A1 MUZ-GE80VA - A1 1. New model MUZ-GE35VA - A1 MUZ-GE35VA2 - A1 MUZ-GE50VA - A1 MUZ-GE50VA2 - A1 MUZ-GE80VA - A1 MUZ-GE80VA2 - A1 1. Inverter P.C. board has been change...

Page 4 - PART NAMES AND FUNCTIONS

4 Air outlet Drain outlet Piping Drain hose Air inlet (back and side) Piping Air outlet Air inlet (back and side) Drain hose Drain outlet PART NAMES AND FUNCTIONS 2 MUZ-GE25VA MUZ-GE25VAD MUZ-GE33VA MUZ-GE35VA MUZ-GE35VA2 MUZ-GE35VAD MUZ-GE42VA MUZ-GE42VAD MUZ-GE50VA MUZ-GE50VA2 MUZ-GE50VAD OBH532E

Page 5 - ACCESSORIES; Drain socket

5 ACCESSORIES Model MUZ-GE25VA MUZ-GE25VADMUZ-GE33VAMUZ-GE35VA MUZ-GE35VA2MUZ-GE35VADMUZ-GE42VA MUZ-GE42VAD MUZ-GE50VA MUZ-GE50VA2 MUZ-GE50VAD MUZ-GE60VA MUZ-GE60VADMUZ-GE71VA MUZ-GE71VADMUZ-GE80VA MUZ-GE80VA2MUZ-GE80VAD Drain socket 1 1 1 Drain cap - 2 - Piping Air outlet Drain outlet Air inlet (ba...

Page 6 - Electrical data; Special remarks; NOTE; SPECIFICATION

6 Outdoor model MUZ-GE25VA- A1 MUZ-GE25VA- A2 MUZ-GE25VAD MUZ-GE33VA Power supply Single phase, 230 V, 50 Hz Capacity Rated frequency (Min.-Max.) Cooling kW 2.5 (1.1 - 3.5) 3.3(1.4 - 3.9) Heating 3.2 (1.3 - 4.5) 3.2 (1.3 - 4.1) 3.2 (1.3 - 4.5) 4.0 (1.4 - 4.8) Breaker Capacity A 10 Electrical data Po...

Page 11 - NOISE CRITERIA CURVES

11 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, 0 dB = 20 μ Pa BAND CENTER FREQUENCIES, Hz COOLING FUNCTION SPL(dB(A)) LINE HEATING 46 48 NC-10 NOISE CRITERIA CURVES 4 90 80 70 60 50 40 30 20 10 63 125 250 500 1...

Page 13 - OUTLINES AND DIMENSIONS

13 Unit: mm 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 pipe jointRefrigerant pipe (flared) ø6.35 Gas refrigerant pipe join...

Page 15 - WIRING DIAGRAM

15 MUZ-GE25VA - A1 MUZ-GE35VA WIRING DIAGRAM 6 OBH532E

Page 27 - REFRIGERANT SYSTEM DIAGRAM

27 Unit: mm Outdoor heat exchanger Flared connection Defrost thermistor RT61 Discharge temperature thermistor RT62 Flared connection Stop valve (with strainar) Stop valve (with service port) Refrigerant flow in cooling Compressor 4-way valve Refrigerant flow in heating Refrigerant pipe ø9.52 (with h...

Page 29 - MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE; Refrigerant piping: m

29 Outdoor heat exchanger Flared connection Defrost thermistor RT61 Discharge temperature thermistor RT62 Flared connection Stop valve Stop valve (with service port) Capillary tube ø 4.0×ø2.4×100 Refrigerant flow in cooling Compressor 4-way valve Refrigerant flow in heating Refrigerant pipe ø15.88(w...

Page 31 - PERFORMANCE CURVES; Air flow should be set at MAX.; INDOOR UNIT; Cooling capacity

31 PERFORMANCE CURVES 8 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 characteristic...

Page 35 - Compressor operates at rated frequency in COOL mode or 58 Hz (; Outdoor low pressure; COOL operation; Both indoor and outdoor unit are under the same temperature/; -4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

35 Correction of Cooling capacity Capacity correction factors Correction of Cooling input Input correction factors Correction of Heating capacity Capacity correction factors MUZ-GE80VA2 MUZ-GE80VAD Correction of Heating input Capacity correction factors The operational frequency of compressor (Hz) T...

Page 36 - Outdoor unit current

36 3.6 3.4 3.8 4.0 4.2 4.4 15 20 25 30 50 60 70 35 Ambient temperature (°C) Ambient humidity(%) O ut d oo r cur rent (A ) MUZ-GE35VA 3.2 15 20 25 30 50 60 70 35 Ambient temperature (°C) Ambient humidity(%) O ut d oo r cur rent (A ) MUZ-GE33VA 2 2.2 2.4 2.6 15 20 25 30 35 50 60 70 Ambient temperature...

Page 38 - HEAT operation

38 2.6 3.0 2.8 3.2 3.4 0 5 10 15 20 25 Ambient temperature (°C) O ut d oo r cur rent (A ) MUZ-GE25VA MUZ-GE25VAD Outdoor unit current MUZ-GE50VA MUZ-GE33VA MUZ-GE35VA MUZ-GE50VA2 MUZ-GE50VAD MUZ-GE71VA MUZ-GE71VAD MUZ-GE80VA Ambient temperature (°C) O ut d oo r cur rent (A ) 2.1 2.0 2.2 2.3 2.4 2.5 ...

Page 39 - PERFORMANCE DATA COOL operation a; t Rated frequency; SHF : Sensible heat factor

39 PERFORMANCE DATA COOL operation a t Rated frequency MUZ-GE25VA MUZ-GE25VAD CAPACITY: 2.5 kW SHF: 0.96 INPUT: 560 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 0.78 448 2.81 2.19 0.78 470 2.70 2.11 0.78 4...

Page 61 - PERFORMANCE DATA HEAT operation at Rated frequency

61 PERFORMANCE DATA HEAT operation at Rated frequency MUZ-GE25VA MUZ-GE25VAD CAPACITY: 3.2 kW INPUT: 730 W INDOOR DB (°C) OUTDOOR WB (°C) -15 -10 -5 0 5 10 15 20 Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 1.60 380 2.02 475 2.43 569 2.85 642 3.26 694 3.68 737 4.06 759 4.48 774...

Page 63 - -3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR; ACTUATOR CONTROL

63 9-2. R.V. COIL CONTROL Heating . . . . . . . . . . . . . . . . . ON Cooling . . . . . . . . . . . . . . . . . OFFDry . . . . . . . . . . . . . . . . . . . . OFF NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor. ON OFF ON OFF Outdoor fan motor Compressor 5 secon...

Page 64 - JS; Defrost; SERVICE FUNCTIONS

64 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-GE 25VA 33VA 35VA 35VA2 42VA 50VA 50VA2 60VA 60...

Page 65 - components for bursting and discoloration.; Lead wiring; TROUBLESHOOTING

65 11-1. 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...

Page 66 - Outline of the function

66 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (11-3.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be repa...

Page 67 - Operational procedure

67 2. Flow chart of the detailed outdoor unit failure mode recall function 2.Blinking pattern when outdoor unit is abnormal: ON OFF No beep Beeps Repeated cycle 2.5-second OFF 3-second ON Blinking at 0.5-second interval No beep Beeps Repeated cycle 2.5-second OFF 3-second ON Blinking at 0.5- second ...

Page 72 - the balance of voltage; fl

72 72 11-5. TROUBLESHOOTING FLOW Is the voltage balanced? Disconnect the connector between compressor and the intelligent power module (IPM)/ IGBT module (IC700)/ power module (IPM). 1. Replace the inverter P.C. board. Check the voltage between terminals. Check the compressor. See 11-5. “Check of co...

Page 74 - G Check of outdoor thermistors; Unit operates COOL mode even if it is set to HEAT mode.

74 G Check of outdoor thermistors H Check of R.V. coil First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to 11-4. In case CN721 ( MUZ-GE25/33/35/42/50 )/CN602 ( MUZ-GE60/71/80 ) is disconnected or R.V. coil is open, voltage is generated between the terminal p...

Page 75 - I Check of outdoor fan motor

75 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. Is the resistance between each te...

Page 76 - J Check of power supply

76 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 on the indoor un...

Page 79 - M How to check miswiring and serial signal error

79 M How to check miswiring and serial signal error Turn OFF inverter-controlled lighting equipment.Turn OFF the power supply and then turn ON again.Press EMERGENCY OPERATION switch. • • • A Is serial signal error indicated 6 minutes later? B Yes Reinstall either the unit or the light away from each...

Page 81 - N Electromagnetic noise enters into TV sets or radios

81 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 82 - Front side of unit

82 -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 Temperature( ) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger temperature thermistor(RT68) Temperature( ) Discharge temperature thermistor(RT62) 0 10 20 30 40 50 60 70 80 90 100 110 120 0 100 200 300 400 ...

Page 86 - : Turn OFF power supply before disassembly.; OPERATING PROCEDURE; Removing the cabinet; (1) Slide the sleeve and check if there is a locking lever or not.; Hooks; DISASSEMBLY INSTRUCTIONS

12-1. MUZ-GE25VA MUZ-GE25VAD MUZ-GE33VA MUZ-GE35VA MUZ-GE35VA2 MUZ-GE35VAD MUZ-GE42VA MUZ-GE42VAD NOTE : Turn OFF power supply before disassembly. 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) Disco...

Page 87 - Photo 3

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)CN932 (Fan motor)CN641 (Defrost thermistor and di...

Page 88 - Removing outdoor fan motor

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. (4) Remove the propeller.(5) Remove the screws fixing the fan motor.(6) Remove...

© Copyright 2009 MITSUBISHI ELECTRIC CORPORATION Distributed in Sep. 2013. No. OBH532 REVISED EDITION-EDistributed in Apr. 2012. No. OBH532 REVISED EDITION-DDistributed in Jul. 2011. No. OBH532 REVISED EDITION-CDistributed in Jul. 2010. No. OBH532 REVISED EDITION-B 5Distributed in Oct. 2009. No. OBH...

Mitsubishi Electric MUZ-GE25VAD - Manual

Table of Contents:

Summary

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