Instruction/ maintenance manual of the product MUZ-GE35VA2 Mitsubishi Electronics
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SER VICE MANUAL CONTENTS 1. TECHNICAL CHANGES ··································· 3 2. P ART NAMES AND FUNCTIONS ····················· 4 3. SPECIFICA TION ················································ 6 4.
2 Revision A : • MUZ-GE60V A- A1 , MUZ-GE71V A- A1 and MUZ-GE80V A- A1 have been added. Revision B: • MUZ-GE33V A- A1 and MUZ-GE42V A- A1 have been added. Revision C: • MUZ-GE35V A2- A1 , MUZ-GE50V A2- A1 and MUZ-GE80V A2- A1 have been added. Use the specified refrigerant only Never use any refrigerant other than that specified.
3 TECHNICAL CHANGES 1 MUZ-GE25V A - A1 MUZ-GE33V A - A1 MUZ-GE35V A - A1 MUZ-GE42V A - A1 MUZ-GE50V A - A1 MUZ-GE60V A - A1 MUZ-GE71V A - A1 MUZ-GE80V A - A1 1. New model MUZ-GE35V A - A1 MUZ-GE35V A2 - A1 MUZ-GE50V A - A1 MUZ-GE50V A2 - A1 MUZ-GE80V A - A1 MUZ-GE80V A2 - A1 1.
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 P ART NAMES AND FUNCTIONS 2 MUZ-GE25V A MUZ-GE25V AD MUZ-GE33V.
5 ACCESSORIES Model MUZ-GE25V A MUZ-GE25V AD MUZ-GE33V A MUZ-GE35V A MUZ-GE35V A2 MUZ-GE35V AD MUZ-GE42V A MUZ-GE42V AD MUZ-GE50V A MUZ-GE50V A2 MUZ-GE50V AD MUZ-GE60V A MUZ-GE60V AD MUZ-GE71V A MUZ-G.
6 Outdoor model MUZ-GE25V A- A1 MUZ-GE25V A- A2 MUZ-GE25V AD MUZ-GE33V A 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.
7 Outdoor model MUZ-GE35V A MUZ-GE35V A2- A1 MUZ-GE35V A2- A2 MUZ-GE35V AD MUZ-GE42V A MUZ-GE42V AD Power supply Single phase, 230 V , 50 Hz Capacity Rated frequency (Min.-Max.) Cooling kW 3.5 (1.4 - 3.9) 3.5 (1.1 - 4.0) 4.2(0.9-4.8) Heating 4.0 (1.4 - 4.
8 Outdoor model MUZ-GE50V A MUZ-GE50V A2 MUZ-GE50V AD Power supply Single phase, 230 V , 50 Hz Capacity Rated frequency (Min.-Max.) Cooling kW 5.0 (1.4 - 5.4) 4.8 (1.4 - 5.4) Heating 5.8 (1.4 - 7.2) Breaker Capacity A1 6 Electrical data Power input 1 (T otal) Cooling W 1,640 1,480 Heating 1,650 Running current 1 (T otal) Cooling A 7.
9 Outdoor model MUZ-GE60V A MUZ-GE60V AD MUZ-GE71V A MUZ-GE71V AD MUZ-GE80V A MUZ-GE80V A2 MUZ-GE80V AD Power supply Single phase, 230 V , 50 Hz Capacity Rated frequency (Min.-Max.) Cooling kW 6.0 (1.5 - 7.5) 7.1 (2.4- 8.7) 8.0 (2.4 - 9.2) 7.8 (2.4 - 9.
10 Speci fi cations and rated conditions of main electric parts Model Item MUZ- GE25V A MUZ- GE25V AD MUZ- GE33V A MUZ- GE35V A MUZ- GE35V A2 MUZ- GE35V AD MUZ- GE42V A MUZ- GE42V AD MUZ- GE50V A MUZ.
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 SP.
12 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 BAND CENTER FREQUENCIES, Hz COOLING FUNCTION SPL(dB(A)) LINE HEA TING 55 NC-10 55 OCT A VE BAND SOU.
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 joint Refrigerant pipe (flared) ø6.
14 417.5 40 42 Drain hole 175 500 330 50 Air in Air out 2-holes 10 21 360 840 109 81 880 452 Service panel 99.5 164.5 195 35 44 Liquid refrigerant pipe joint Refrigerant pipe (flared) Ø 6.35 ( MUZ-GE60 ) Ø 9.52 ( MUZ-GE71/80 ) Gas refrigerant pipe joint Refrigerant pipe (flared) Ø 15.
15 MUZ-GE25V A - A1 MUZ-GE35V A WIRING DIAGRAM 6 OBH532E.
16 MUZ-GE33V A OBH532E.
17 MUZ-GE25V A - A2 MUZ-GE35V A2 OBH532E.
18 MUZ-GE25V AD MUZ-GE35V AD OBH532E.
19 MUZ-GE42V A OBH532E.
20 MUZ-GE42V AD OBH532E.
21 MUZ-GE50V A OBH532E.
22 MUZ-GE50V A2 OBH532E.
23 MUZ-GE50V AD OBH532E.
24 MUZ-GE60V A MUZ-GE71V A MUZ-GE80V A OBH532E.
25 MUZ-GE80V A2 OBH532E.
26 MUZ-GE60V AD MUZ-GE71V AD MUZ-GE80V AD OBH532E.
27 Unit: mm Outdoor heat exchanger Flared connection Defrost thermistor RT6 1 Discharge temperature thermistor RT6 2 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.
28 Outdoor heat exchanger Flared connection Defrost thermistor RT6 1 Discharge temperature thermistor RT6 2 Flared connection Stop valve Stop valve (with service port) Capillary tube ø 4.0 × ø 2.4 × 100 Refrigerant flow in cooling Compressor 4-way valve Refrigerant flow in heating Refrigerant pipe ø 15.
29 Outdoor heat exchanger Flared connection Defrost thermistor RT6 1 Discharge temperature thermistor RT6 2 Flared connection Stop valve Stop valve (with service port) Capillary tube ø 4.0 × ø 2.4 × 100 Refrigerant flow in cooling Compressor 4-way valve Refrigerant flow in heating Refrigerant pipe ø 15.
30 ADDITIONAL REFRIGERANT CHARGE (R410A: g) Model Outdoor unit precharged Refrigerant piping length (one way) 5 m 6 m 7 m 8 m 9 m 10 m 1 1 m 12 m 13 m 14 m 15 m 20 m MUZ-GE25V A MUZ-GE25V AD MUZ-GE33V.
31 PERFORMANCE CUR VES 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 un.
32 NOTE: The above broken lines are for the heating operation without any frost and defrost operation. 0.8 0.9 1.0 1.1 1.2 1.3 - 1 0 - 5 0 5 1 01 52 0 2 53 03 54 04 5 Outdoor intake air Dry-bulb tempe.
33 C o r r ecti on o f C o oling ca pa city 0.0 0.5 1.0 1.5 05 0 1 0 0 The operational frequency of compressor (Hz) C a pa city co r r ecti on f a cto r s C or r ec tion o f C oolin g inpu t 0.0 0.5 1.0 1.5 2.0 0 50 100 The operational frequency of compressor (Hz) I np ut c o rre c t i on fa c t ors C or rec tion of H eating c apac i t y 0.
34 MUZ-GE71V A MUZ-GE71V AD Correction of Cooling capacity Capacity correction factors Correction of Cooling input Input correction factors Correction of Heating capacity Capacity correction factors M.
35 Correction of Cooling capacity Capacity correction factors Correction of Cooling input Input correction factors Correction of Heating capacity Capacity correction factors MUZ-GE80V A2 MUZ-GE80V AD .
36 3. 6 3. 4 3. 8 4.0 4.2 4.4 15 20 25 30 50 60 70 35 Am bient temperature ( °C) Am bient hum idi ty( %) O utdoo r current (A ) MUZ-GE35V A 3.2 15 20 25 30 50 60 70 35 Am bient temperature ( °C) Am bient hum idi ty( %) O utdoo r current (A ) MUZ-GE33V A 2 2.
37 O utdoo r current (A ) MUZ-GE60V A MUZ-GE60V AD Am bient temperature ( °C) Am bient hum idi ty( %) O utdoo r current (A ) 15 20 50 25 60 30 70 35 4.0 5.0 6.0 7.0 8.0 9.0 MUZ-GE50V A2 MUZ-GE50V AD Ambient temperature (°C) Ambient humidity(%) 15 20 25 30 50 60 70 35 4.
38 2. 6 3. 0 2.8 3. 2 3. 4 0 5 10 15 20 25 Am bient temperature ( °C) O utdoo r current (A ) MUZ-GE25V A MUZ-GE25V AD Outdoor unit current MUZ-GE50V A MUZ-GE33V A MUZ-GE35V A MUZ-GE50V A2 MUZ-GE50V AD MUZ-GE71V A MUZ-GE71V AD MUZ-GE80V A Am bient temperature (°C) O utdoo r current (A ) 2.
39 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE25V A MUZ-GE25V AD CAP ACITY : 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.
40 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE25V A MUZ-GE25V AD CAP ACITY : 2.5 kW SHF: 0.96 INPUT : 560 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 2.45 1.91 0.78 549 2.
41 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE33V A CAP ACITY : 3.3 kW SHF: 0.88 INPUT : 910 W NOTE Q : T otal capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature SHC :.
42 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE33V A CAP ACITY : 3.3 kW SHF: 0.88 INPUT : 910 W NOTE Q : T otal capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature SHC :.
43 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE35V A CAP ACITY : 3.5 kW SHF: 0.85 INPUT : 1010 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 4.1 1 2.
44 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE35V A CAP ACITY : 3.5 kW SHF: 0.85 INPUT : 1010 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 3.43 2.30 0.67 990 3.15 2.
45 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE35V A2 MUZ-GE35V AD CAP ACITY : 3.5 kW SHF: 0.82 INPUT : 920 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 4.
46 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE35V A2 MUZ-GE35V AD CAP ACITY : 3.5 kW SHF: 0.82 INPUT : 920 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 3.43 2.20 0.64 902 3.
47 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE42V A MUZ-GE42V AD CAP ACITY : 4.2 kW SHF: 0.77 INPUT : 1260 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 4.
48 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE42V A MUZ-GE42V AD CAP ACITY : 4.2 kW SHF: 0.77 INPUT : 1260 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 4.12 2.43 0.59 1235 3.
49 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE50V A CAP ACITY : 5.0 kW SHF: 0.76 INPUT : 1640 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 5.88 3.
50 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE50V A CAP ACITY : 5.0 kW SHF: 0.76 INPUT : 1640 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 4.90 2.84 0.58 1607 4.50 2.
51 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE50V A2 MUZ-GE50V AD CAP ACITY : 4.8 kW SHF: 0.77 INPUT : 1480 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 5.
52 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE50V A2 MUZ-GE50V AD CAP ACITY : 4.8 kW SHF: 0.77 INPUT : 1480 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 4.70 2.78 0.
53 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE60V A MUZ-GE60V AD CAP ACITY : 6.0 kW SHF: 0.78 INPUT : 1760 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 7.
54 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE60V A MUZ-GE60V AD CAP ACITY : 6.0 kW SHF: 0.78 INPUT : 1760 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 5.88 3.53 0.60 1725 5.
55 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE71V A MUZ-GE71V AD CAP ACITY : 7.1 kW SHF: 0.79 INPUT : 2130 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 8.
56 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE71V A MUZ-GE71V AD CAP ACITY : 7.1 kW SHF: 0.79 INPUT : 2130 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 6.96 4.24 0.61 2087 6.
57 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE80V A CAP ACITY : 8.0 kW SHF: 0.75 INPUT : 2560 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 9.40 5.
58 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE80V A CAP ACITY : 8.0 kW SHF: 0.75 INPUT : 2560 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 7.84 4.47 0.57 2509 7.20 4.
59 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE80V A2 MUZ-GE80V AD CAP ACITY : 7.8 kW SHF: 0.76 INPUT : 2460 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 9.
60 PERFORMANCE DA T A COOL operation a t Rated frequency MUZ-GE80V A2 MUZ-GE80V AD CAP ACITY : 7.8 kW SHF: 0.76 INPUT : 2460 W INDOOR DB (°C) INDOOR WB (°C) OUTDOOR DB (°C) 35 40 46 Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 7.64 4.43 0.
61 PERFORMANCE DA T A HEA T operation at Rated frequency MUZ-GE25V A MUZ-GE25V AD CAP ACITY : 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.
62 PERFORMANCE DA T A HEA T operation at Rated frequency MUZ-GE71V A MUZ-GE71V AD CAP ACITY : 8.1 kW INPUT : 21 10 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 4.05 1097 5.
63 9-2. R.V . COIL CONTROL Heating . . . . . . . . . . . . . . . . . ON Cooling . . . . . . . . . . . . . . . . . OFF Dry . . . . . . . . . . . . . . . . . . . . OFF NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor .
64 10-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> T o change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P .
65 1 1-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for miswiring.
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 (1 1-3.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be repaired for the abnormality which does not recur .
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.
68 3. Outdoor unit failure mode table The upper lamp of OPERA TION INDICA TOR lamp (Indoor unit) Abnormal point (Failure mode / protection) LED indication (Outdoor P .C. board) Condition Remedy Indoor/outdoor unit failure mode recall function Outdoor unit failure mode recall function OFF None (Normal) — — — — — 1-time fl ash 2.
69 3. Outdoor unit failure mode table The upper lamp of OPERA TION INDICA TOR lamp (Indoor unit) Abnormal point (Failure mode / protection) LED indication (Outdoor P .C. board) Condition Remedy Indoor/outdoor unit failure mode recall function Outdoor unit failure mode recall function 1 1-time fl ash 2.
70 1 1-3. TROUBLESHOOTING CHECK T ABLE No. Symptom LED indication Abnormal point/ Condition Condition Remedy 16 Outdoor unit operates. 1-time fl ash 2.5 seconds OFF Frequency drop by current protection Current from power outlet is nearing breaker capacity .
71 Part name Check method and criterion Figure Defrost thermistor (RT61) Fin temperature thermistor (RT64) Ambient temperature thermistor (RT65) Outdoor heat exchanger temperature thermistor (RT68) Measure the resistance with a tester . Refer to 1 1-6.
72 72 1 1-5. 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.
73 F Check of compressor start failure D Check of compressor winding E Check of compressor operation time ● Disconnect the connector between the compressor and the intelligent power module (IPM)/ IGBT module (IC700)/ power mod- ule (IPM) , and measure the resistance between the compressor terminals.
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 1 1-4.
75 I Check of outdoor fan motor Is the resistance of outdoor fan motor normal? (Refer to 1 1-4.) Replace the outdoor fan motor . Replace the inverter P .C. board. No Ye s Disconnect CN932 from the inverter P .C. board, and measure the resistance of the outdoor fan motor .
76 J Check of power supply Is there voltage 230 V AC between the indoor terminal block S1 and S2? No Ye s Replace the indoor electronic control P .C. board. Rectify indoor/outdoor connecting wire. Ye s If light up, OK. If fl ash, refer to 1 1-3. Does the upper lamp of OPERA TION INDICA TOR on the indoor unit light up? Does LED on the inverter P .
77 Press OPERA TE/ST OP (ON/OFF) button of the remote controller (the set temperature is displayed) with the remote controller headed towards the indoor unit. 1 Expansion valve operates in full-opening direction. OK NOTE : After check of LEV , do the undermentioned operations.
78 Check the outdoor fan motor . (Refer to 1 1-5. .) Is the fuse (F901) blown on the in- verter P .C. board? Check the connection of the connectors (CN931 , CN932) of the outdoor fan motor . If the connection is poor , make it correct. Operate the outdoor unit by starting EMERGENCY OPERA TION.
79 M How to check miswiring and serial signal error T urn OFF inverter-controlled lighting equipment. T urn OFF the power supply and then turn ON again. Press EMERGENCY OPERA TION switch. • • • A Is serial signal error indicated 6 minutes later? B Ye s Reinstall either the unit or the light away from each other .
80 T urn OFF inverter-controlled lighting equipment. T urn OFF the power supply and then turn ON again. Press EMERGENCY OPERA TION switch. • • • A Is serial signal error indicated 6 minutes later? B Ye s Reinstall either the unit or the light away from each other .
81 N Electromagnetic noise enters into TV sets or radios Ye s Is the unit earthed? No Earth the unit. Ye s Is the distance between the antennas and the indoor unit within 3 m, or is the distance betwe.
82 -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 T emperature( ) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger temperature thermistor(RT68) T emperature.
83 -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 T emperature( ) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger temperature thermistor(RT68) T emperature.
84 -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 T emperature( ) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger temperature thermistor(RT68) T emperature.
85 MUZ-GE60V AD MUZ-GE71V AD MUZ-GE80V AD -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 T emperature( ) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger te.
12-1. MUZ-GE25V A MUZ-GE25V AD MUZ-GE33V A MUZ-GE35V A MUZ-GE35V A2 MUZ-GE35V AD MUZ-GE42V A MUZ-GE42V AD NOTE : T urn OFF power supply before disassembly . OPERA TING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screw fixing the service panel.
OPERA TING PROCEDURE PHOT OS 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 .
OPERA TING PROCEDURE PHOT OS 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 .
12-2. MUZ-GE50V A MUZ-GE50V A2 MUZ-GE50V AD NOTE: T urn OFF power supply before disassembly . OPERA TING PROCEDURE PHOT OS 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 .
OPERA TING PROCEDURE PHOT OS 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 .
OPERA TING PROCEDURE PHOTOS 4. Removing the discharge temperature thermistor , defrost thermistor , outdoor heat exchanger tempera- ture thermistor and ambient temperature thermistor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P .
12-3. MUZ-GE60V A MUZ-GE60V AD MUZ-GE71V A MUZ-GE71V AD MUZ-GE80V A MUZ-GE80V A2 MUZ-GE80V AD NOTE: T urn OFF power supply before disassembly . OPERA TING PROCEDURE PHOT OS 1. Removing the cabinet (1) Remove the screws of the service panel. (2) Remove the screws of the top panel.
OPERA TING PROCEDURE PHOT OS 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> CN602 (R.V .
OPERA TING PROCEDURE PHOTOS 4. Removing the discharge temperature thermistor , defrost thermistor , outdoor heat exchanger tempera- ture thermistor and ambient temperature thermistor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P .
95 OBH532E.
© Copyright 2009 MITSUBISHI ELECTRIC CORPORA TION Distributed in Sep. 2013. No. OBH532 REVISED EDITION-E Distributed in Apr . 2012. No. OBH532 REVISED EDITION-D Distributed in Jul. 201 1. No. OBH532 REVISED EDITION-C Distributed in Jul. 2010. No. OBH532 REVISED EDITION-B 5 Distributed in Oct.
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