SERVICE MANUAL MUCF-A18WV - MUCF
Contents
1. Air in Wet and dry bulb thermometers FRONT VIEW BACK VIEW Cooling capacity Total input cooling 12471447 14 1 4 g 5 S 11 37 13 17 913 51 3 5 t S 10 37 N87 12 26 51 2 5 26 24 22 9271067 811 24 914 20 9 83 054 Gio 2 1 0 air WS 22 31 0 oret 5 9 femp eratun 20 ait WB tempe 737 847 V0 9 eC 0 9 indoor intake 2 oe 27 30 35 40 43 27 30 35 40 43 AI Outdoor intake air temperature C Outdoor intake air DB temperature C gt 8 EZ 9E U Su Xu L O od OD 11 OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation Both indoor and outdoor units are under the same temperature humidity condition Dry Bulb temperature Relative humidity 20 50 25 60 30 70 Q Air flow should be set at MAX 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 Gauge Kkgf cm Gauge MPa Gauge M UCF A1 8WV c 1 2 12 MUCF A18WV E m o lt 1 02. 0 34 2916 6 63 2 25 0 34 2977 1 31 18 5 88 5 06 0 86 2401 5 40 4 64 0 86 2548 5 19 4 46 0 86 2597 31 20 6 18 4 57 0 74 2499 5 76 4 26 0 74 2622 5 55 4 11 0 74 2695 31 22 6 54 4 05 0 62 2597 6 12 3 79 0 62 2744 5 91 3 66 0 62 2793 31 24 6 90 3 45 0 50 2695 6 48 3 24 0 50 2818 6 30 3 15 0 50 2879 31 26 7 26 2 76 0 38 2793 6 84 2 60 0 38 2916 6 63 2 52 0 38 2977 32 18 5 88 5 29 0 90 2401 5 40 4 86 0 90 2548 5 19 4 67 0 90 2597 32 20 6 18 4 82 0 78 2499 5 76 4 49 0 78 2622 5 55 4 33 0 78 2695 32 22 6 54 4 32 0 66 2597 6 12 4 04 0 66 2744 5 91 3 90 0 66 2793 32 24 6 90 3 73 0 54 2695 6 48 3 50 0 54 2818 6 30 3 40 0 54 2879 32 26 7 26 3 05 0 42 2793 6 84 2 87 0 42 2916 6 63 2 78 0 42 2977 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W WB Wet bulb temperature 16 9 TROUBLESHOOTING MUCF A18WV E MUCF A24WV m 1 9 1 Cautions on troubleshooting 1 Before troubleshooting check the following 1 Check the power supply voltage 2 Check the indoor
3. 1 55 0 35 1991 22 18 4 70 2 40 10 51 1774 4 32 2 20 0 51 1882 4 15 2 12 0 51 1919 22 20 4 94 1 93 0 39 1846 4 61 1 80 0 39 1937 4 44 1 73 0 39 1991 22 22 5 23 1 41 0 27 1919 4 90 1 32 0 27 2027 4 73 1 28 0 27 2063 23 18 4 70 2 59 0 55 1774 4 32 2 38 0 55 1882 4 15 2 28 0 55 1919 23 20 4 94 2 13 0 43 1846 4 61 1 98 0 43 1937 4 44 1 91 0 43 1991 23 22 5 23 1 62 0 31 1919 4 90 1 52 0 31 2027 4 73 1 47 0 31 2063 24 18 4 70 2 78 0 59 1774 4 32 2 55 0 59 1882 4 15 2 45 0 59 1919 24 20 4 94 12 32 0 47 1846 4 61 2 17 0 47 1937 4 44 2 09 0 47 1991 24 22 5 23 1 83 0 35 1919 4 90 1 71 0 35 2027 4 73 1 65 0 35 2063 24 24 5 52 1 27 0 23 1991 5 18 1 19 0 23 2082 5 04 1 16 0 23 2127 25 18 4 70 2 96 0 63 1774 4 32 2 72 0 63 1882 4 15 2 62 0 63 1919 25 20 4 94 12 52 0 51 1846 4 61 2 35 0 51 1937 4 44 2 26 0 51 1991 25 22 5 23 2 04 0 39 1919 4 90 1 91 0 39 2027 4 73 1 84 0 39 2063 25 24 5 52 1 49 0 27 1991 5 18 1 40 0 27 2082 5 04 1 36 0 27 2127 26 18 4 70 3 15 0 67 1774 4 32 2 89 0 67 1882 4 15 2 78 0 67 1919 26 20 4 94 2 72 0 55 1846 4 61 2 53 0 55 1937 4 44 2 44 0 55 1991 26 22 5 23 2 25 0 43 1919 4 90 2 11 0 43 2027 4 73 2 0
4. 10 8 gL 0 9 z 5 5 gL 0 8 S 8 7L 0 7 6 06 5 15 18 20 25 30 32 35 C 15 18 20 25 30 32 3500 50 60 70 50 60 70 96 Ambient temperature Ambient temperature Ambient humidity 96 Ambient humidity 96 kgila Gauge MPa Gaus MUCF A24WV E MUCF A24WV E 10 lt 9 5 5 z e 2 5 3 5 E 0 5 5 15 18 20 25 30 32 35 C 75 18 20 25 30 32 3500 50 60 70 50 60 70 26 Ambient temperature Ambient temperature Ambient humidity 96 Ambient humidity 96 12 PERFORMANCE DATA COOL operation 230V MCF A18WV E MUCF A18WV CAPACITY 4 8 KW SHF 0 65 INPUT 1810 W m 1 OUTDOOR DB C INDOOR INDOOR 21 25 27 30 DB C WB C SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 5 64 2 65 0 47 1448 5 40 2 54 0 47 1520 5 18 2 44 0 47 1593 4 99 2 35 0 47 1665 21 20 5 88 2 06 0 35 1520 5 64 1 97 0 35 1611 5 47 1 92 0 35 1647 5 28 1 85 0 35 1720 22 18 5 64 2 88 0 51 1448 5 40 2 75 0 51 1520 5 18 2 64 0 51 1593 4 99 2 55 0 51 1665 22 20 5 88 2 29 0 39 1520 5 64 2 20 0 39 1611 5 47 2 13 0 39 1647 5 28 2 06 0 39 1720 22 22 6 12 1 65 0 27 1575 5 90 1 59
5. 1738 6 43 1 74 0 27 1828 6 34 1 71 0 27 1882 6 14 1 66 0 27 1937 29 18 5 64 4 46 0 79 1448 5 40 4 27 0 79 1520 5 18 4 10 0 79 1593 4 99 3 94 0 79 1665 29 20 5 88 3 94 0 67 1520 5 64 3 78 0 67 1611 5 47 3 67 0 67 1647 5 28 3 54 0 67 1720 29 22 6 12 3 37 0 55 1575 5 90 3 25 0 55 1674 5 76 3 17 0 55 1720 5 52 3 04 0 55 1792 29 24 6 43 2 77 0 43 1647 6 19 2 66 0 43 1738 6 05 2 60 0 43 1792 5 86 2 52 0 43 1882 29 26 6 62 2 05 0 31 1738 6 43 1 99 0 31 1828 6 34 1 96 0 31 1882 6 14 1 90 0 31 1937 30 18 5 64 4 68 0 83 1448 5 40 4 48 0 83 1520 5 18 4 30 0 83 1593 4 99 4 14 0 83 1665 30 20 5 88 4 17 0 71 1520 5 64 4 00 0 71 1611 5 47 3 89 0 71 1647 5 28 3 75 0 71 1720 30 22 6 12 3 61 0 59 1575 5 90 3 48 0 59 1674 5 76 3 40 0 59 1720 5 52 3 26 0 59 1792 30 24 6 43 3 02 0 47 1647 6 19 2 91 0 47 1738 6 05 2 84 0 47 1792 5 86 2 75 0 47 1882 30 26 6 62 2 32 0 35 1738 6 43 2 25 0 35 1828 6 34 2 22 0 35 1882 6 14 2 15 0 35 1937 31 18 5 64 4 91 0 87 1448 5 40 4 70 0 87 1520 5 18 4 51 0 87 1593 4 99 4 34 0 87 1665 31 20 5 88 4 41 0 75 1520 5 64 4 23 0 75 1611 5 47 4 10 0 75 1647 5 28 3 96 0 75 1720 31 22 6 12
6. 3 10 0 55 1611 5 47 3 01 0 55 1647 5 28 2 90 0 55 1720 26 22 6 12 2 63 0 43 1575 5 90 2 54 0 43 1674 5 76 2 48 0 43 1720 5 52 2 37 0 43 1792 26 24 6 43 1 99 0 31 1647 6 19 1 92 0 31 1738 6 05 1 87 0 31 1792 5 86 1 82 0 31 1882 26 26 6 62 1 26 0 19 1738 6 43 1 22 0 19 1828 6 34 1 20 0 19 1882 6 14 1 17 0 19 1937 27 18 5 64 4 00 0 71 1448 5 40 3 83 0 71 1520 5 18 3 68 0 71 1593 4 99 3 54 0 71 1665 27 20 5 88 3 47 0 59 1520 5 64 3 33 0 59 1611 5 47 3 23 0 59 1647 5 28 3 12 0 59 1720 27 22 6 12 2 88 0 47 1575 5 90 2 77 0 47 1674 5 76 2 71 0 47 1720 5 52 2 59 0 47 1792 27 24 6 43 2 25 0 35 1647 6 19 2 17 0 35 1738 6 05 2 12 0 35 1792 5 86 2 05 0 35 1882 27 26 6 62 1 52 0 23 1738 6 43 1 48 0 23 1828 6 34 1 46 0 23 1882 6 14 1 41 0 23 1937 28 18 5 64 4 23 0 75 1448 5 40 4 05 0 75 1520 5 18 3 89 0 75 1593 4 99 3 74 0 75 1665 28 20 5 88 3 70 0 63 1520 5 64 3 55 0 63 1611 5 47 3 45 0 63 1647 5 28 3 33 0 63 1720 28 22 6 12 3 12 0 51 1575 5 90 3 01 0 51 1674 5 76 2 94 0 51 1720 5 52 2 82 0 51 1792 28 24 6 43 2 51 0 39 1647 6 19 2 41 0 39 1738 6 05 2 36 0 39 1792 5 86 2 28 0 39 1882 28 26 6 62 1 79 0 27
7. 30 18 4 70 3 90 0 83 1774 4 32 3 59 0 83 1882 4 15 3 45 0 83 1919 30 20 4 94 13 51 0 71 1846 4 61 3 27 0 71 1937 4 44 3 15 0 71 1991 30 22 5 23 3 09 0 59 1919 4 90 2 89 0 59 2027 4 73 2 79 0 59 2063 30 24 5 52 2 59 0 47 1991 5 18 2 44 0 47 2082 5 04 2 37 0 47 2127 30 26 5 81 2 03 0 35 2063 5 47 1 92 0 35 2154 5 30 1 86 0 35 2199 1 31 18 4 70 4 09 0 87 1774 4 32 3 76 0 87 1882 4 15 3 61 0 87 1919 31 20 4 94 3 7110 75 1846 4 61 3 46 0 75 1937 4 44 3 33 0 75 1991 31 22 5 23 3 30 0 63 1919 4 90 3 08 0 63 2027 4 73 2 98 0 63 2063 31 24 5 52 2 82 0 51 1991 5 18 2 64 0 51 2082 5 04 2 57 0 51 2127 31 26 5 81 2 27 0 39 2063 5 47 2 13 0 39 2154 5 30 2 07 0 39 2199 32 18 4 70 4 28 0 91 1774 4 32 3 93 0 91 1882 4 15 3 78 0 91 1919 32 20 4 94 3 91 0 79 1846 4 61 3 64 0 79 1937 4 44 3 51 0 79 1991 32 22 5 23 3 51 0 67 1919 4 90 3 28 0 67 2027 4 73 3 17 0 67 2063 32 24 5 52 3 04 0 55 1991 5 18 2 85 0 55 2082 5 04 2 77 0 55 2127 32 26 _ 5 81 2 50 0 43 2063 5 47 2 35 0 43 2154 5 30 2 28 0 43 2199 NOTE Q Total capacity KW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT To
8. m MUCF A24WV E Check method and criterion Measure the resistance between the terminals with a tester co Part temperature 10 40 C INNER Terminal Abnormal PROTECTOR MUCF A18WV MUCF A24WV 160 5C OPEN C R 1 590 1 95 Q 0 71 Q 0 87 Q Open or 90 10C CLOSE G S 2 65 Q 3 24 Q 1 450 1 770 short circuit Outdoor fan motor MF INNER PROTECTOR Measure the resistance between the terminals with a tester Part temperature 10 C 40 nose 8 Color of Normal Abnormal 87 15 C CLOSE lead wire MUCF A18WV MUCF A24WV OBS DF WHT BLK 102 Q 126 Q 620 770 shot circuit OPEN BLK RED 97 Q 120 Q 78 Q 96 Q BLK RED ORN WHT 83 15 CLOSE Reference value INNER PROTECTOR 18 10 DISASSEMBLY INSTRUCTIONS Terminal with lock mechanism Detaching points In case of terminal with lock mechanism detach the terminal as shown below There are two types Refer to 1 and 2 of the terminal with lock mechanism The terminal with no lock mechanism can be removed by pulling it out Check the shape of the terminal and work 1 Slide the sleeve and check if there is a locking lever or not Slide the sleeve GPull the terminal while 2 The terminal with this connector is a terminal with lock mechanism Hold the
9. 3 86 0 63 1575 5 90 3 72 0 63 1674 5 76 3 63 0 63 1720 5 52 3 48 0 63 1792 31 24 6 43 3 28 0 51 1647 6 19 3 16 0 51 1738 6 05 3 08 0 51 1792 5 86 2 99 0 51 1882 31 26 6 62 2 58 0 39 1738 6 43 2 51 0 39 1828 6 34 2 47 0 39 1882 6 14 2 40 0 39 1937 32 18 5 64 5 13 0 91 1448 5 40 4 91 0 91 1520 5 18 4 72 0 91 1593 4 99 4 54 0 91 1665 32 20 5 88 4 65 0 79 1520 5 64 4 46 0 79 1611 5 47 4 32 0 79 1647 5 28 4 17 0 79 1720 32 22 6 12 4 10 0 67 1575 5 90 3 96 0 67 1674 5 76 3 86 0 67 1720 5 52 3 70 0 67 1792 32 24 6 43 3 54 0 55 1647 6 19 3 41 0 55 1738 6 05 3 33 0 55 1792 5 86 3 22 0 55 1882 32 26 6 62 2 85 0 43 1738 6 43 2 77 0 43 1828 6 34 2 72 0 43 1882 6 14 2 64 0 43 1937 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity KW INPUT Total power input W 13 WB Wet bulb temperature PERFORMANCE DATA COOL operation 230V MCF A18WV J MUCF A18WV CAPACITY 4 8 KW SHF 0 65 INPUT 1810 W OUTDOOR DB C INDOOR INDOOR 35 40 43 DB C WB C SHC SHF INPUT SHC SHF Q SHC SHF INPUT 21 18 470 2 21 0 47 1774 4 32 2 03 0 47 1882 4 15 1 95 0 47 1919 21 20 4 94 1 73 0 35 1846 4 61 1 61 0 35 1937 4 44
10. 5 73 0 78 2058 7 05 5 50 0 78 2181 6 84 5 34 0 78 2230 6 60 5 15 0 78 2328 32 22 7 65 5 05 0 66 2132 7 38 4 87 0 66 2266 7 20 4 75 0 66 2328 6 90 4 55 0 66 2426 32 24 8 04 4 34 0 54 2230 7 74 4 18 0 54 2352 7 56 4 08 0 54 2426 7 32 3 95 0 54 2548 32 26 8 28 3 48 0 42 2352 8 04 3 38 0 42 2475 7 92 3 33 0 42 2548 7 68 3 23 0 42 2622 NOTE Q Total capacity kW SHF Sensible heat factor DB Dry bulb temperature SHC Sensible heat capacity kW INPUT Total power input W 15 WB Wet bulb temperature PERFORMANCE DATA COOL operation 230V MCF A24WV i MUCF A24WV CAPACITY 6 0 KW SHF 0 64_ INPUT 2450 W OUTDOOR DB C INDOORINDOOR 35 40 43 DB C WB C SHC SHF INPUT Q SHC SHF INPUT SHC SHF INPUT 21 18 5 88 2 70 0 46 2401 5 40 2 48 0 46 2548 5 19 2 39 0 46 2597 21 20 6 18 2 10 0 34 2499 576 1 96 0 34 2622 5 55 1 89 0 34 2695 22 18 5 88 2 94 0 50 2401 5 40 2 70 0 50 2548 5 19 2 60 0 50 2597 22 20 6 18 2 35 0 38 2499 5 76 2 19 0 38 2622 5 55 2 11 0 38 2695 22 22 6 54 1 70 0 26 2597 6 12 1 59 0 26 2744 5 91 1 54 0 26 2793 23 18 5 88 3 18 0 54 2401 5 40 2 92 0 54 2548 5 19 2 80 0 54 2597 23 20 6 18 2 60 0 42 2499 5 76 2 42 0 42 2622 5 55 2 33 0
11. 7 74 3 25 0 42 2352 7 56 3 18 0 42 2426 7 32 3 07 0 42 2548 29 26 8 28 2 48 0 30 2352 8 04 2 41 0 30 2475 7 92 2 38 0 30 2548 7 68 2 30 0 30 2622 30 18 7 05 5 78 0 82 1960 6 75 5 54 0 82 2058 6 48 5 31 0 82 2156 6 24 5 12 0 82 2254 30 20 7 35 5 15 0 70 2058 7 05 4 94 0 70 2181 6 84 4 79 0 70 2230 6 60 4 62 0 70 2328 30 22 7 65 4 44 0 58 2132 7 38 4 28 0 58 2266 7 20 4 18 0 58 2328 6 90 4 00 0 58 2426 30 24 8 04 3 70 0 46 2230 7 74 3 56 0 46 2352 7 56 3 48 0 46 2426 7 32 3 37 0 46 2548 30 26 8 28 2 82 0 34 2352 8 04 2 73 0 34 2475 7 92 2 69 0 34 2548 7 68 2 61 0 34 2622 31 18 7 05 6 06 0 86 1960 6 75 5 81 0 86 2058 6 48 5 57 0 86 2156 6 24 5 37 0 86 2254 31 20 7 35 5 44 0 74 2058 7 05 5 22 0 74 2181 6 84 5 06 0 74 2230 6 60 4 88 0 74 2328 31 22 7 65 4 74 0 62 2132 7 38 4 58 0 62 2266 7 20 4 46 0 62 2328 6 90 4 28 0 62 2426 31 24 8 04 4 02 0 50 2230 7 74 3 87 0 50 2352 7 56 3 78 0 50 2426 7 32 3 66 0 50 2548 31 26 8 28 3 15 0 38 2352 8 04 3 06 0 38 2475 7 92 3 01 0 38 2548 7 68 2 92 0 38 2622 32 18 7 05 6 35 0 90 1960 6 75 6 08 0 90 2058 6 48 5 83 0 90 2156 6 24 5 62 0 90 2254 32 20 7 35
12. Refrigerant piping Piping size O D mm Models Max length m A Gas Liquid MUCF A18WV E 212 7 MUCF A24WV Ei 25 215 88 6 35 g gt Outdoor unit Height difference should be within 10m regardless of which unit Io indoor or outdoor position is high az gt 5 A Refrigerant piping Max length 25m s ADDITIONAL REFRIGERANT CHARGE R410A g If pipe length exceeds 7m additional refrigerant R410A charge is required Model Refrigerant piping length one way 10m 15m 20m Outdoor unit precharged MUCF A18WV 1 450 MUCF A24WV 60 160 260 1 850 Calculation Xg 20g m X Refrigerant piping length m 7 10 8 PERFORMANCE CURVES MUCF A18WV m MUCF A24WV m The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions since operating conditions vary according to the areas where these units are installed The following information has been pro vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve 1 GUARANTEED VOLTAGE 198 264V 50Hz 2 AIR FLOW Air flow should be set at MAX 3 M
13. incompatible refrigerating oil easily separates from Since refrigerant and refrigerating oil are compatible each refrigerant and is in the upper layer inside the suction muffler refrigerating oil backs to the compressor through the lower Raising position of the oil back hole enables to back the position oil back hole refrigerating oil of the upper layer to flow back to the compressor Suction muffler Suction muffler Compressor Compressor Oil back hole Compressor Refrigerating oil Refrigerant Refrigerating oil Refrigerant NOTE The unit of pressure has been changed to MPa on the international system of units SI unit system The conversion factor is 1 Gauge 10 2 kgf cm Gauge Conversion chart of refrigerant temperature and pressure MPa Gauge 4 0 R410A Saturated liquid pressure mou ud 0 5 30 20 10 0 10 20 30 40 50 60 C 1 Tools dedicated for the air conditioner with R410A refrigerant The following tools are required for R410A refrigerant Some R22 tools can be substituted for R410A tools The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being charged into the unit Cap size has been changed from 7 16 UNF with 20 threads to 1 2 UNF with 20 threads R410A tools Can R22 tools be used Description R410A has high pressures beyond the measurement range of existing gauges Port diameters have been changed to prev
14. 0 2058 6 48 4 54 0 70 2156 6 24 4 37 0 70 2254 27 20 7 35 4 26 0 58 2058 7 05 4 09 0 58 2181 6 84 3 97 0 58 2230 6 60 3 83 0 58 2328 27 22 7 65 3 52 0 46 2132 7 38 3 39 0 46 2266 7 20 3 31 0 46 2328 6 90 3 17 0 46 2426 27 24 8 04 2 73 0 34 2230 7 74 2 63 0 34 2352 7 56 2 57 0 34 2426 7 32 2 49 0 34 2548 27 26 8 28 1 82 0 22 2352 8 04 1 77 0 22 2475 7 92 1 74 0 22 2548 7 68 1 69 0 22 2622 28 18 7 05 5 22 0 74 1960 6 75 5 00 0 74 2058 6 48 4 80 0 74 2156 6 24 4 62 0 74 2254 28 20 7 35 4 56 0 62 2058 7 05 4 37 0 62 2181 6 84 4 24 0 62 2230 6 60 4 09 0 62 2328 28 22 7 65 3 83 0 50 2132 7 38 3 69 0 50 2266 7 20 3 60 0 50 2328 6 90 3 45 0 50 2426 28 24 8 04 3 06 0 38 2230 7 74 2 94 0 38 2352 7 56 2 87 0 38 2426 7 32 2 78 0 38 2548 28 26 8 28 2 15 0 26 2352 8 04 2 09 0 26 2475 7 92 2 06 0 26 2548 7 68 2 00 0 26 2622 29 18 7 05 5 50 0 78 1960 6 75 5 27 0 78 2058 6 48 5 05 0 78 2156 6 24 4 87 0 78 2254 29 20 7 35 4 85 0 66 2058 7 05 4 65 0 66 2181 6 84 4 51 0 66 2230 6 60 4 36 0 66 2328 29 22 7 65 4 13 0 54 2132 7 38 3 99 0 54 2266 7 20 3 89 0 54 2328 6 90 3 73 0 54 2426 29 24 8 04 3 38 0 42 2230
15. 0 27 1674 5 76 1 56 0 27 1720 5 52 1 49 0 27 1792 23 18 5 64 3 10 0 55 1448 5 40 2 97 0 55 1520 5 18 2 85 0 55 1593 4 99 2 75 0 55 1665 23 20 5 88 2 53 0 43 1520 5 64 2 43 0 43 1611 5 47 2 35 0 43 1647 5 28 2 27 0 43 1720 23 22 6 12 1 90 0 31 1575 5 90 1 83 0 31 1674 5 76 1 79 0 31 1720 5 52 1 71 0 31 1792 24 18 5 64 3 33 0 59 1448 5 40 3 19 0 59 1520 5 18 3 06 0 59 1593 4 99 2 95 0 59 1665 24 20 5 88 2 76 0 47 1520 5 64 2 65 0 47 1611 5 47 2 57 0 47 1647 5 28 2 48 0 47 1720 24 22 6 12 2 14 0 35 1575 5 90 2 07 0 35 1674 5 76 2 02 0 35 1720 5 52 1 93 0 35 1792 24 24 6 43 1 48 0 23 1647 6 19 1 42 0 23 1738 6 05 1 39 0 23 1792 5 86 1 35 0 23 1882 25 18 5 64 3 55 0 63 1448 5 40 3 40 0 63 1520 5 18 3 27 0 63 1593 4 99 3 14 0 63 1665 25 20 5 88 3 00 0 51 1520 5 64 2 88 0 51 1611 5 47 2 79 0 51 1647 5 28 2 69 0 51 1720 25 22 6 12 2 39 0 39 1575 5 90 2 30 0 39 1674 5 76 2 25 0 39 1720 5 52 2 15 0 39 1792 25 24 6 43 1 74 0 27 1647 6 19 1 67 0 27 1738 6 05 1 63 0 27 1792 5 86 1 58 0 27 1882 26 18 5 64 3 78 0 67 1448 5 40 3 62 0 67 1520 5 18 3 47 0 67 1593 4 99 3 34 0 67 1665 26 20 5 88 3 23 0 55 1520 5 64
16. 3 0 43 2063 26 24 5 52 1 71 0 31 1991 5 18 1 61 0 31 2082 5 04 1 56 0 31 2127 26 26 5 81 1 10 0 19 2063 5 47 1 04 0 19 2154 5 30 1 01 0 19 2199 27 18 4 70 3 34 0 71 1774 4 32 3 07 0 71 1882 4 15 2 95 0 71 1919 27 20 4 94 12 92 0 59 1846 4 61 2 72 0 59 1937 4 44 2 62 0 59 1991 27 22 5 23 2 46 0 47 1919 4 90 2 30 0 47 2027 4 73 2 22 0 47 2063 27 24 5 52 1 93 0 35 1991 5 18 1 81 0 35 2082 5 04 1 76 0 35 2127 27 26 5 81 1 34 0 23 2063 5 47 1 26 0 23 2154 5 30 1 22 0 23 2199 28 18 4 70 3 53 0 75 1774 4 32 3 24 0 75 1882 4 15 3 11 0 75 1919 28 20 4 94 13 11 0 63 1846 4 61 2 90 0 63 1937 4 44 2 80 0 63 1991 28 22 5 23 2 67 0 51 1919 4 90 2 50 0 51 2027 4 73 2 41 0 51 2063 28 24 5 52 2 15 0 39 1991 5 18 2 02 0 39 2082 5 04 1 97 0 39 2127 28 26 5 81 1 57 0 27 2063 5 47 1 48 0 27 2154 5 30 1 43 0 27 2199 29 18 4 70 3 72 10 79 1774 4 32 3 41 0 79 1882 4 15 3 28 0 79 1919 29 20 4 94 3 31 0 67 1846 4 61 3 09 0 67 1937 4 44 2 97 0 67 1991 29 22 5 23 2 88 0 55 1919 4 90 2 69 0 55 2027 4 73 2 60 0 55 2063 29 24 5 52 2 37 0 43 1991 5 18 2 23 0 43 2082 5 04 2 17 0 43 2127 29 26 5 81 1 80 0 31 2063 5 47 1 70 0 31 2154 5 30 1 64 0 31 2199
17. 3 SPECIFICATION Outdoor model MUCF A18WV MUCF A24WV Function Cooling Cooling Single phase Single phase Power supply 230V 50Hz 230V 50Hz Capacity 4 8 Dehumidification Air flow High Power outlet Runnning current Power input Power factor Starting current Compressor motor current Fan motor current Coefficient of performance C O RN196VHSHT NN29VBAHT Output 1 300 1 900 Winding C R 1 80 C R 0 80 resistance at 20 C S 3 00 C S 1 64 Model RA6V50 OG RA6V60 MA Winding WHT BLK 116 WHT BLK 71 resistance at 20 BLK RED 111 BLK RED 89 Dimensions WxHxD 850x605x290 850x605x290 Weight 44 60 Sound level High 52 53 Fan speed High 825 873 Fan speed regulator 1 1 Refrigerant filling 1 45 1 85 capacity R410A Refrigerating oil Model 520 NEO22 1 200 NEO22 Capacity Electrical data Compressor Fan motor NOTE Test conditions are based on ISO 5151 Cooling Indoor DB27 C WB19 C Outdoor DB35 C WB 24 C Indoor Outdoor piping length 5m 4 NOISE CRITERIA CURVES NOISE CRITERIA CURVES MUCF A18WV m FAN SPEED SPL dBa LINE High 52 e Test conditions OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR 90 80 70 60 50 40 30 20 Cooling Dry bulb temperature 35 C Wet
18. 3 76 0 58 2156 6 24 3 62 0 58 2254 24 20 7 35 3 38 0 46 2058 7 05 3 24 0 46 2181 6 84 3 15 0 46 2230 6 60 3 04 0 46 2328 24 22 7 65 2 60 0 34 2132 7 38 2 51 0 34 2266 7 20 2 45 0 34 2328 6 90 2 35 0 34 2426 24 24 8 04 1 77 0 22 2230 7 74 1 70 0 22 2352 7 56 1 66 0 22 2426 7 32 1 61 0 22 2548 25 18 7 05 4 37 0 62 1960 6 75 4 19 0 62 2058 6 48 4 02 0 62 2156 6 24 3 87 0 62 2254 25 20 7 35 3 68 0 50 2058 7 05 3 53 0 50 2181 6 84 3 42 0 50 2230 6 60 3 30 0 50 2328 25 22 7 65 2 91 0 38 2132 7 38 2 80 0 38 2266 7 20 2 74 0 38 2328 6 90 2 62 0 38 2426 25 24 8 04 2 09 0 26 2230 7 74 2 01 0 26 2352 7 56 1 97 0 26 2426 7 32 1 90 0 26 2548 26 18 7 05 4 65 0 66 1960 6 75 4 46 0 66 2058 6 48 4 28 0 66 2156 6 24 4 12 0 66 2254 26 20 7 35 3 97 0 54 2058 7 05 3 81 0 54 2181 6 84 3 69 0 54 2230 6 60 3 56 0 54 2328 26 22 7 65 3 21 0 42 2132 7 38 3 10 0 42 2266 7 20 3 02 0 42 2328 6 90 2 90 0 42 2426 26 24 8 04 2 41 0 30 2230 7 74 2 32 0 30 2352 7 56 2 27 0 30 2426 7 32 2 20 0 30 2548 26 26 8 28 1 49 0 18 2352 8 04 1 45 0 18 2475 7 92 1 43 0 18 2548 7 68 1 38 0 18 2622 27 18 7 05 4 94 0 70 1960 6 75 4 73 0 7
19. 42 2695 23 22 6 54 1 96 0 30 2597 6 12 1 84 0 30 2744 5 91 1 77 0 30 2793 24 18 5 88 3 41 0 58 2401 5 40 3 13 0 58 2548 5 19 3 01 0 58 2597 24 20 6 18 2 84 0 46 2499 5 76 2 65 0 46 2622 5 55 2 55 0 46 2695 24 22 6 54 2 22 0 34 2597 6 12 2 08 0 34 2744 5 91 2 01 0 34 2793 24 24 6 90 1 52 0 22 2695 6 48 1 43 0 22 2818 6 30 1 39 0 22 2879 25 18 5 88 3 65 0 62 2401 5 40 3 35 0 62 2548 5 19 3 22 0 62 2597 25 20 6 18 3 09 0 50 2499 5 76 2 88 0 50 2622 5 55 2 78 0 50 2695 25 22 6 54 2 49 0 38 2597 6 12 2 33 0 38 2744 5 91 2 25 0 38 2793 25 24 6 90 1 79 0 26 2695 6 48 1 68 0 26 2818 6 30 1 64 0 26 2879 26 18 5 88 3 88 0 66 2401 5 40 3 56 0 66 2548 5 19 3 43 0 66 2597 26 20 6 18 3 34 0 54 2499 5 76 3 11 0 54 2622 5 55 3 00 0 54 2695 26 22 6 54 2 75 0 42 2597 6 12 2 57 0 42 2744 5 91 2 48 0 42 2793 26 24 6 90 2 07 0 30 2695 6 48 1 94 0 30 2818 6 30 1 89 0 30 2879 26 26 7 26 1 31 0 18 2793 6 84 1 23 0 18 2916 6 63 1 19 0 18 2977 27 18 5 88 4 12 0 70 2401 5 40 3 78 0 70 2548 5 19 3 63 0 70 2597 27 20 6 18 3 58 0 58 2499 5 76 3 34 0 58 2622 5 55 3 22 0 58 2695 27 22 6 54 3 01 0 46 2597 6 12 2 82 0 46 2744
20. 5 91 2 72 0 46 2793 27 24 6 90 2 35 0 34 2695 6 48 2 20 0 34 2818 6 30 2 14 0 34 2879 27 26 7 26 1 60 0 22 2793 6 84 1 50 0 22 2916 6 63 1 46 0 22 2977 28 18 5 88 4 35 0 74 2401 5 40 4 00 0 74 2548 5 19 3 84 0 74 2597 28 20 6 18 3 83 0 62 2499 5 76 3 57 0 62 2622 5 55 3 44 0 62 2695 28 22 6 54 3 27 0 50 2597 6 12 3 06 0 50 2744 5 91 2 96 0 50 2793 28 24 6 90 2 62 0 38 2695 6 48 2 46 0 38 2818 6 30 2 39 0 38 2879 28 26 7 26 1 89 0 26 2793 6 84 1 78 0 26 2916 6 63 1 72 0 26 2977 29 18 5 88 4 59 0 78 2401 5 40 4 21 0 78 2548 5 19 4 05 0 78 2597 29 20 6 18 4 08 0 66 2499 5 76 3 80 0 66 2622 5 55 3 66 0 66 2695 29 22 6 54 3 53 0 54 2597 6 12 3 30 0 54 2744 5 91 3 19 0 54 2793 29 24 6 90 2 90 0 42 2695 6 48 2 72 0 42 2818 6 30 2 65 0 42 2879 29 26 7 26 2 18 0 30 2793 6 84 2 05 0 30 2916 6 63 1 99 0 30 2977 30 18 5 88 4 82 0 82 2401 5 40 4 43 0 82 2548 5 19 4 26 0 82 2597 30 20 6 18 4 33 0 70 2499 5 76 4 03 0 70 2622 5 55 3 89 0 70 2695 30 22 6 54 3 79 0 58 2597 6 12 3 55 0 58 2744 5 91 3 43 0 58 2793 30 24 6 90 3 17 0 46 2695 6 48 2 98 0 46 2818 6 30 2 90 0 46 2879 30 26 7 26 2 47 0 34 2793 6 84 2 33
21. 821 900 COMPRESSOR NN29VBAHT E02 817 290 BASE E02 818 290 BASE E02 817 661 STOP VALVE GAS 12 7 E02 818 661 STOP VALVE GAS 15 88 E02 817 662 STOP VALVE LIQUID 6 35 E02 817 245 SERVICE PANEL E02 144 301 OUTDOOR FAN MOTOR RA6V50 OO E02 818 301 OUTDOOR FAN MOTOR RA6V60 JL E02 817 630 OUTDOOR HEAT EXCHANGER E02 818 630 OUTDOOR HEAT EXCHANGER E02 466 383 SURGE ABSORBER E02 818 374 TERMINAL BLOCK 2P E02 817 374 TERMINAL BLOCK 3P E02 138 351 OUTDOOR FAN CAPACITOR 3 04F 440V AC E02 817 353 COMPRESSOR CAPACITOR 40 F 440V E02 818 353 COMPRESSOR CAPACITOR 55F 440V AC E07 012 340 COMPRESSOR CONTACTOR E02 817 009 HANDLE E02 746 937 CAPILLARY TUBE 3 0x91 6x650 E02 825 936 CAPILLARY TUBE 3 0x42 0x1000 E02 820 936 CAPILLARY TUBE 2 5 40 6 1000 E02 466 340 COMPRESSOR CONTACTOR E02 466 340 RELAY a MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Mar 2004 No OB339 6 New publication effective Mar 2004 Made in Japan Specifications subject to change without notice
22. AIN READINGS 1 Indoor intake air wet bulb temperature CWB 2 Indoor outlet air wet bulb temperature CWB Coolin 3 Outdoor intake air dry bulb temperature CDB 9 4 Total input W Indoor air wet dry bulb temperature difference on the left side of the chart on this page shows the difference between the indoor intake air wet dry bulb temperature and the indoor outlet air wet dry bulb temperature for your reference at service How to measure the indoor air wet bulb dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers to the outdoor air intake Cover the thermometers to prevent direct rays of the sun 3 Check that the air filter is cleaned 4 Open windows and doors of room 5 Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL MODE 6 When system stabilizes after more than 15 minutes measure temperature and take an average temperature 7 10 minutes later measure temperature again and check that the temperature does not change INDOOR UNIT OUTDOOR UNIT Wet and dry bulb dHH amp E Air out thermometers HHan ib
23. Changes for the Better MITSUBISHI ELECTRIC FLOOR AND CEILING TYPE AIR CONDITIONERS No OB339 utilized SERVICE MANUAL ae Wireless type Models MUCF A18WV MUCF A24WV CONTENTS 1 TECHNICAL CHANGES 2 m 2 PART NAMES AND 5 3 SPECIFICATION 5 TT 4 NOISE CRITERIA 6 D 5 OUTLINES AND DIMENSIONS 7 Q 6 WIRING DIAGRAM 8 n 7 REFRIGERANT SYSTEM DIAGRAM 9 Indicati T 8 PERFORMANCE CURVES 11 ARN px 9 TROUBLESHOOTING 17 MUCF A24WV 10 DISASSEMBLY INSTRUCTIONS 19 11 23 NOTE This service manual describes technical data of outdoor units As for indoor units MCF A18WV E and MCF A24WV E1 refer to the service manual OB338 1 TECHNICAL CHANGES m 1 MUCF 18NV gt MUCF A18WV 1 Refrigerant has changed R22 R410A 2 Refrigerant system diagram has changed Diameter of stop valve has changed Gas 415 8841 2 7 Accumulator has removed 3 Oil separator has been added 4 Compressor has changed NH33VMDT9RN 196VHSHT MUCF 24NV E gt MUCF A24WV 1 Refrigerant has changed R22R410A 2 Refrigerant system diagram has ch
24. N doesn t INDICATOR Outdoor unit controller is the lamp on the doesn t pressed signal from indoor unit is ee or when the controller aol EMERGENCY OPERATION _______ n ee Y switch is Y Y Outdoor unit Outdoor unit NN Indoor unit Indoor unit 2 time flash 4 time flash Operates in doesn t rotate with operates when doesn t Cause Mosi only Test Run operate OPERATION the operate Indoor unit operation even in INDICATOR EMERGENCY when the Trouble of indoor uri Test Run lamp on OPERATION Toom control operation switch is OPERATION temperature system pressed switch is indoor coil U i pressed thermistor Check room Check of Refer to Refer to Refer to nerk room Replace the temperature wiring Check of Check of Check of inaoor thermistor diagram of indoor fan W remote thermistorand electronic Refer to outdoor motor controller electronic control Test point unit on and receiver control board diagram and page 8 P C board P C board to voltage Test point I diagram voltage power is being transmitted from the indoor unit 17 9 3 Trouble criterion of main parts MUCF A18WV
25. TB1 1 SYMBOL C1 C2 NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER SYMBOL MC MF TB1 TB2 NAME COMPRESSOR INNER PROTECTOR OUTDOOR FAN MOTOR INNER PROTECTOR TERMINAL BLOCK SYMBOL X1 52 RELAY COMPRESSOR CONTACTOR NOTES 1 About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector 7 REFRIGERANT SYSTEM DIAGRAM Unit mm MUCF A18WV E OUTDOOR UNIT separator Refrigerant pipe 12 7 Capillary tube with heat insulator pay Stop valve with service Outdoor port heat Strainer exchanger 100 Compressor Flared connection l Stop Capillary tube 3 0x 1 6x650 Refrigerant pipeZ6 35 with heat insulator T Refrigerant flow in cooling MUCF A24WV amp OUTDOOR UNIT Refrigerant pipe 15 88 with heat insulator Muffler Stop valve with service port Outdoor Flared connection heat exchanger Compressor Flared connection Stop valve Capillary tube Refrigerant pipe 46 35 3 0X 2 0X1000 with heat insulator Refrigerant flow in cooling REFRIGERANT PIPING LENGTH amp MAX HEIGHT DIFFERENCE
26. anged Diameter of stop valve has changed Liquid 99 52 96 35 3 Compressor has changed NH47VMDTNN29VBAHT m INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT This room air conditioner adopts refrigerant R410A which never destroys the ozone layer Pay particular attention to the following points though the basic installation procedure is same as that for R22 conditioners Q As R410A has working pressure approximate 1 6 times as high as that of R22 some special tools and piping parts materials are required Refer to the table below Take sufficient care not to allow water and other contaminations to enter the R410A refrigerant during storage and installation since it is more susceptible to contaminations than R22 For refrigerant piping use clean pressure proof parts materials specifically designed for R410A Refer to 2 Refrigerant piping Composition change may occur in R410A since it is a mixed refrigerant When charging charge liquid refrigerant to prevent composition change reMgean 32 125 50 50 22 100 Steam pressure 25 C Mp Saturated steam density 25 Combustiblity GWP x2 Additional charge on leakage XE Color c c x o D a x1 Ozone Destruction Parameter based on CFC 11 X2 Global Warmth Parameter based on CO2 l New Specification Current Specification The
27. bulb temperature 24 C APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 20 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR 63 125 250 500 100 200 400 8000 BAND CENTER FREQUENCIES Hz 1 MUCF A24WV E 90 80 70 60 50 40 30 20 10 FAN SPEED SPL dB A LINE High 53 Test conditions Cooling Dry bulb temperature 35C Wet bulb te mperature 24 C T EE S S S S APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE iod 63 125 250 500 1000 OUTDOOR UNIT 1m MICROPHONE 2000 4000 8000 BAND CENTER FREQUENCIES Hz OUTLINES AND DIMENSIONS 5 Unit mm MUCF A24WV MUCF A18WV REQUIRED SPACE OUTDOOR UNIT 15 88 MUCF A24WV lt LL o 2 amp 9 c oz c 2h fsa mo ne S EL o otc Oo Oo Gx Fl OG Or Ose o0 o9 OW o OD gt 30 noes o jo o 0 o r T Q e N y i
28. ension of flare nut 3 Refrigerant oil Apply the special refrigeration oil accessories packed with indoor unit to the flare and the union seat surfaces 4 Air purge Do not discharge the refrigerant into the atmosphere Take care not to discharge refrigerant into the atmosphere during installation reinstallation or repairs to the refrigerant circuit Use the vacuum pump for air purging for the purpose of environmental protection 5 Additional charge For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas phase composition change may occur in the refrigerant inside the cylinder and the outdoor unit In this case ability of the refrigerating cycle decreases or normal operation can be impossible However charging the liquid refrigerant all at once may cause the compressor to be locked Thus charge the refrigerant slowly Indoor unit Refrigerant gas cylinder operating valve Union Stop valve Outdoor unit Service Pd PTPN Gauge manifold valve for R410A Refrigerant gas cylinder for R410A with siphon Refrigerant liquid Electronic scale for refrigerant charging 4 2 PART NAMES AND FUNCTIONS OUTDOOR UNIT MUCF A18WV MUCF A24WV m EN m back and side Drain hose BEBE 54555444555 Drain outlet
29. ent any other refrigerant from being charged into the unit Hose material and cap size have been changed to improve the pressure resistance Dedicated for HFC refrigerant Gauge manifold Charge hose Gas leak detector adapter Electronic scale for refrigerant charging Clamp bar hole has been enlarged to reinforce the spring strength in the tool Provided for flaring work to be used with R22 flare tool Provided to prevent the back flow of oil This adapter enables you to use It is difficult to measure R410A with a charging cylinder because the refrigerant bubbles due to high pressure and high speed vaporization No Not Substitutable for RA10A Yes Substitutable for R410A 635 mm and 9 52 mm Torque wrench No 127mmangd 1588 mm 2 Refrigerant piping Specifications Use the refrigerant pipes that meet the following specifications e Wall Insulation material 0 8 mm For liquid Heat resisting foam plastic Specific gravity 0 045 Thickness 8 mm For gas 1588 Use a copper pipe or a copper alloy seamless pipe with a thickness of 0 8 mm 6 35 9 52 12 7 1 0 mm 15 88 Never use any pipe with a thickness less than 0 8 mm 6 35 9 52 12 7 1 0 mm 15 88 as the pressure resistance is insufficient Flaring work and flare nut Flaring work for R410A pipe differs from that for R22 pipe For details of flaring work refer to Installation manual FLARING WORK Pipe diameter Dim
30. he outdoor fan motor Photo 4 Hook Propeller Propeller nut 4 Removing the compressor 1 Remove the cabinet Refer to 1 2 Remove the soundproof felt 3 Remove the terminal cover on the compressor 4 Disconnect the lead wires from the glass terminal of the compressor 5 Recover gas from the refrigerant circuit 6 Disconnect the welded part of the discharge pipe 7 Disconnect the welded part of the suction pipe 8 Remove nuts fixing the compressor 9 Remove the compressor NOTE Before using a burner reclaim gas from the pipes until the pressure gauge shows 0 kg cm OMPa Use the burner under the condition that gas can be recovered even when the inner pressure rises by heat Photo 5 Discharge pipe Compressor Compressor set nuts 22 11 PARTS LIST MUCF A18WV E MUCF A24WV amp OUTDOOR UNIT STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS Part No 20 1 Part Name Symbol in Wiring Diagram Q ty unit MUCF A18WV E1 MUCF A24WV Remarks E02 817 233 BACK PANEL OUT E02 817 232 CABINET E02 817 521 GRILLE OUT E02 141 501 PROPELLER E02 139 515 MOTOR SUPPORT E02 075 506 COMPRESSOR RUBBER SET 3RUBBERS SET E02 527 506 COMPRESSOR RUBBER SET 4RUBBERS SET E02 817 900 COMPRESSOR RN196VHSHT E02
31. outdoor connecting wire for mis wiring 2 Take care the following during servicing 1 Before servicing the air conditioner be sure to first turn off the remote controller to stop the main unit and then after confirming the horizontal vane is closed turn off the breaker and or disconnect the power plug 2 Be sure to turn OFF the power supply before removing the front panel the cabinet the top panel and the electronic control P C board 3 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the com ponents 4 When connecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires 3 Troubleshooting procedure X Lead wiring Housing point 1 First check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality To make sure check how many times the abnormality indication is flashing on and off before starting service work 2 Before servicing that the connector and terminal are connected properly 3 If the electronic control P C board is supposed to be defective check the copper foil pattern for disconnection and the components for bursting and discoloration 4 When troubleshooting refer to the flow chart on this page 9 2 Instruction of troubleshooting t i Indoor unit OPERATIO
32. sleeve and pull out the terminal pushing the locking slowly lever Connector 10 1 MUCF A18WV mE OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1 Removing the cabinet 1 Remove the screws of the cabinet Photo 1 2 Hold the down of the cabinet on the both side and remove the cabinet a Screws of the J cabinet Service Screws of panel the cabinet i S 2 Removing the electrical parts Photo 3 gt M DPutdoor fan capacitor C2 1 Remove the service panel and the cabinet 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB1 TB2 Compressor contactor 52C Connector Compressor contactor 52C Terminal blocks Compressor capacitor C1 TB1 TB2 OPERATING PROCEDURE PHOTOS 3 Removing the outdoor fan motor 1 Remove the cabinet Refer to 1 2 Disconnect the connector and remove the hooked lead wire from the fan motor 3 Remove the propeller nut and remove the propeller 4 Remove screws fixing the outdoor fan motor 5 Remove the outdoor fan motor Propeller nut Propeller Soundproof felt 4 Removing the compressor 1 Remove the cabinet Refer to 1 Photo 5 2 Remove the relay panel Remove the soundproof felt Remove the terminal cover on the compressor Disconnect lead wires from the glass terminal of the com Discharge pressor 6 Recover gas from the refrigerant circui
33. t 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 3 4 5 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before using a burner reclaim gas from the pipes until the pressure gauge shows 0 kg cm MPa Use the burner under the condition that gas can be recovered even when the inner pressure rises by heat Compressor Compressor set nuts 20 10 2 MUCF A24WV OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1 Removing the cabinet 1 Remove the screws of the cabinet 2 Hold the bottom of the cabinet on the both side to remove the cabinet Photo 1 Service panel Photo 2 Screws 2 Removing the electrical parts 1 Remove the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB1 TB2 Relay X1 Compressor contactor 52C Photo 3 Outdoor fan capacitor C2 Connector Relay X1 Compressor Compressor Terminal capacitor C1 contactor 52C blocks TB1 TB2 21 OPERATING PROCEDURE PHOTOS 3 Removing the outdoor fan motor 1 Remove the cabinet Refer to 1 2 Disconnect the connector and remove the hocked lead wire from the fan motor 3 Remove the propeller nut and remove the propeller 4 Remove the screws fixing the fan motor 5 Remove t
34. tal power input W WB Wet bulb temperature 14 PERFORMANCE DATA COOL operation 230V MCF A24WV CAPACITY 6 0 KW 0 64 INPUT 2450 W m 1 MUCF A24WV OUTDOOR DB C INDOOR INDOOR 21 25 27 30 DB C WB C Q SHC SHF INPUT SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 7 05 3 24 0 46 1960 6 75 3 11 0 46 2058 6 48 2 98 0 46 2156 6 24 2 87 0 46 2254 21 20 7 35 2 50 0 34 2058 7 05 2 40 0 34 2181 6 84 2 33 0 34 2230 6 60 2 24 0 34 2328 22 18 7 05 3 53 0 50 1960 6 75 3 38 0 50 2058 6 48 3 24 0 50 2156 6 24 3 12 0 50 2254 22 20 7 35 2 79 0 38 2058 7 05 2 68 0 38 2181 6 84 2 60 0 38 2230 6 60 2 51 0 38 2328 22 22 7 65 1 99 0 26 2132 7 38 1 92 0 26 2266 7 20 1 87 0 26 2328 6 90 1 79 0 26 2426 23 18 7 05 3 81 0 54 1960 6 75 3 65 0 54 2058 6 48 3 50 0 54 2156 6 24 3 37 0 54 2254 23 20 7 35 3 09 0 42 2058 7 05 2 96 0 42 2181 6 84 2 87 0 42 2230 6 60 2 77 0 42 2328 23 22 7 65 2 30 0 30 2132 7 38 2 21 0 30 2266 7 20 2 16 0 30 2328 6 90 2 07 0 30 2426 24 18 7 05 4 09 0 58 1960 6 75 3 92 0 58 2058 6 48
35. ve R a 5 oo S LE lt LO co gt lt i gt i Y on 25 5g ES r lt 8vc 909 6 WIRING DIAGRAM MUCF A18WV OUTDOOR UNIT E MODEL WIRING DIAGRAM TB2 2 EX WHT INDOOR UNIT CONNECTING 1 BLK 12V mU Bay 1 s CIRCUIT BREAKER 52C mdp L rr BRN WHT O O POWER SUPPLY GOM N o o 230V 50Hz ep un FES GRN YLW R 1 RED RED C2 ORN 5 ORN WHT WHT MF BLU BLK NAME COMPRESSOR CAPACITOR SYMBOL MC NAME COMPRESOR INNER PROTECTOR OUTDOOR FAN CAPACITOR MF OUTDOOR FAN MOTOR INNER PROTECTOR SURGE ABSORBER TB1 TB2 TERMINAL BLOCK NOTES 1 About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate SYMBOL 52C NAME COMPRESSOR CONTACTOR Terminal block Connector MUCF A24WV MODEL WIRING DIAGRAM OUTDOOR UNIT TB2 TO ETEN WHT INDOOR UNIT CONNECTING 1 BLK 12V gt O POWER SUPPLY N 1 230V 50Hz o wr GRN YLW BLU
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