Mitsubishi Electric MXZ-2A40VA Page 79 Service Manual Download

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OPERATING PROCEDURE

PHOTOS

Photo 5

Defrost
thermistor

5. Removing outdoor fan motor

(1) Remove the top panel, cabinet and service panel.

(Refer to 1.)

(2) Disconnect the power supply and indoor/outdoor

connecting wire.

(3) Disconnect the connectors for outdoor fan motor.
(4) Remove the propeller nut.
(5) Remove the propeller.
(6) Remove the screws fixing the fan motor. (See Photo 6.)
(7) Remove the fan motor.

Photo 7

Welded parts of 4-way valve

6. Removing the compressor and 4-way valve

(1) Remove the top panel, cabinet and service panel.

(Refer to 1.)

(2) Disconnect the power supply and indoor/outdoor

connecting wire and remove the back panel. (Refer to 1.)

(3) Remove the inverter assembly. (Refer to 2.)
(4) Recover gas from the refrigerant circuit.

NOTE:

Recover gas from the pipes until the pressure gauge

shows 0 kg/cm

(0 MPa).

(5) Detach the welded part of the suction and the discharge

pipe connected with compressor.

(6) Remove the nuts of compressor legs.
(7) Remove the compressor.
(8) Detach the welded part of pipes connected with 4-way

valve. (See Photo 7.)

Photo 6

Propeller

Screws of the outdoor fan motor

Outdoor heat
exchanger
temperature
thermistor

OB377--3.qxp 05.12.14 3:35 PM Page 79

Summary of Contents for MXZ-2A40VA

Page 1: ...Y INSTRUCTIONS 77 15 PARTS LIST 86 16 OPTIONAL PARTS BACK COVER Inverter controlled multi system type Models MXZ 2A40VA MXZ 2A52VA MXZ 3A54VA MXZ 3A54VA MXZ 4A71VA MXZ 4A71VA MXZ 4A80VA E1 E2 E1 E2 E1 E1 E1 No OB377 REVISED EDITION A HFC utilized R410A SPLIT TYPE HEAT PUMP AIR CONDITIONERS MXZ 4A80VA NOTE This service manual describes technical data of outdoor units Indoor unit service manual MSZ ...

Page 2: ...d W900oH900oD320 W840oH710oD330 4 Combinations of connectable indoor units have been changed 5 Capacity class of connectable indoor units have been changed 6 Communication system has been changed 7 Power supply way has been changed change to supply to outdoor unit 8 Compressor has been changed TNB220FMCH SNB130FLDH1 9 High pressure switch has been removed 10 Outdoor fan motor has been changed PM8H...

Page 3: ...Z 2A52VA 1 Indication of capacity has been changed BTU kW 2 Cooling capacity specification has been changed 5 4kW 5 2kW 3 Heating capacity specification has been changed 6 6kW 6 4kW 4 Dimensions of unit has been changed W840oH640oD330 W800oH550oD285 5 Communication system has been changed 6 Power supply way has been changed change to supply to outdoor unit 7 Compressor has been changed SNV092FJYH ...

Page 4: ...t of R22 some special tools and piping parts materials are required Refer to the table below 2 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 3 For refrigerant piping use clean pressure proof parts materials specifically designed for R410A Refer to 2 Refrigerant ...

Page 5: ...o use vacuum pumps It is difficult to measure R410A with a charging cylinder because the refrigerant bubbles due to high pressure and high speed vaporization No No No Yes Yes New New New Gauge manifold Charge hose Torque wrench Flare tool Flare gauge Vacuum pump adapter Electronic scale for refrigerant charging No Not Substitutable for R410A Yes Substitutable for R410A No 12 7 mm and 15 88 mm 1 To...

Page 6: ...cked 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 refri...

Page 7: ... 1 1 2 1 1 2 1 2 3 MXZ 2A40VA MXZ 2A52VA MXZ 3A54VA E1 MXZ 4A71VA E1 MXZ 3A54VA E2 MXZ 4A71VA E2 MXZ 4A80VA MXZ 4A80VA Air outlet Drain outlet Air inlet Back and side Air inlet Air outlet Drain outlet Piping Drain hose back and side MXZ 3A54VA MXZ 4A71VA Air outlet Drain outlet Air inlet Back and side ...

Page 8: ...ts 22 22 22 25 22 35 22 50 22 60 25 25 25 35 25 50 25 60 35 35 35 50 35 60 50 50 50 60 60 60 22 22 22 22 22 25 22 22 35 22 22 50 22 22 60 22 25 25 22 25 35 22 25 50 22 25 60 22 35 35 22 35 50 22 35 60 22 50 50 25 25 25 25 25 35 25 25 50 25 25 60 25 35 35 25 35 50 25 35 60 25 50 50 35 35 35 35 35 50 22 22 22 22 22 22 22 25 22 22 22 35 22 22 22 50 22 22 25 25 22 22 25 35 22 22 25 50 22 22 35 35 22 2...

Page 9: ...22 50 71 25 25 25 25 25 35 25 25 50 25 25 60 25 25 71 25 35 35 25 35 50 25 35 60 25 35 71 25 50 50 Combination of the connectable indoor units 25 50 60 35 35 35 35 35 50 35 35 60 35 35 71 35 50 50 35 50 60 22 22 22 22 22 22 22 25 22 22 22 35 22 22 22 50 22 22 22 60 22 22 22 71 22 22 25 25 22 22 25 35 22 22 25 50 22 22 25 60 22 22 25 71 22 22 35 35 22 22 35 50 22 22 35 60 22 22 50 50 22 25 25 25 22...

Page 10: ...0 250 1 130 1 045 0 250 1 170 1 90 2 07 2 39 1 95 2 33 2 20 2 50 3 50 1 90 1 83 1 51 1 95 1 67 INDOOR UNITS COMBINATION 4 22 25 35 22 22 22 25 22 35 25 25 25 35 Indoor units combination Unit A Unit B Heating capacity kW Total Outdoor unit power consumption kW Current A Power factor NOTE Electrical data is for outdoor unit only 90 90 90 95 95 95 95 95 3 24 3 53 4 20 4 16 4 16 4 16 4 16 4 32 3 3 0 9...

Page 11: ...40 5 2 1 1 6 0 1 505 0 250 1 830 2 20 2 50 3 07 2 50 2 97 2 60 2 20 2 50 3 50 2 20 2 20 1 93 2 50 2 13 2 60 22 25 35 22 22 22 25 22 35 25 25 25 35 35 35 Indoor units combination Unit A Unit B Heating capacity kW Total Outdoor unit power consumption kW Current A Power factor NOTE Electrical data is for outdoor unit only 90 90 90 97 97 97 97 97 97 3 24 3 53 4 20 6 95 7 17 7 40 7 40 7 40 7 64 3 3 0 9...

Page 12: ...2 0 6 8 5 4 2 0 6 8 5 4 2 1 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 5 4 2 9 6 8 0 590 0 420 0 740 0 660 0 420 0 830 0 950 0 430 1 180 1 500 0 480 1 660 1 180 0 540 1 450 1 300 0 540 1 630 1 600 0 540 2 550 1 580 0 550 2 440 1 420 0 540 1 750 1 600 0 540 2 550 1 580 0 550 2 440 1 600 0 540 2 550 1 530 0 ...

Page 13: ... 8 1 8 9 0 6 8 1 9 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 6 8 2 6 9 0 0 820 0 380 1 090 0 910 0 380 1 190 1 040 0 380 1 300 1 770 0 370 2 300 1 500 0 410 1 710 1 580 0 410 2 350 1 580 0 410 2 390 1 440 0 390 2 220 1 580 0 410 2 390 1 580 0 410 2 390 1 440 0 390 2 220 1 580 0 410 2 390 1 440 0 410 2 220...

Page 14: ...6 8 2 1 7 1 6 6 2 9 8 1 6 9 2 9 8 3 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 7 1 2 9 8 5 0 590 0 420 0 740 0 660 0 420 0 830 0 950 0 430 1 180 1 500 0 480 1 660 2 110 0 480 2 290 1 180 0 540 1 450 1 300 0 540 1 630 1 800 0 540 2 100 2 440 0 550 2 570 2 460 0 550 2 600 1 420 0 540 1 750 2 010 0 540 2 540 2 44...

Page 15: ...1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 7 1 3 7 8 8 1 99 0 670 2 690 1 96 0 680 2 720 1 95 0 680 2 740 1 99 0 670 2 690 1 96 0 680 2 720 1 95 0 680 2 740 1 94 0 690 2 770 1 99 0 670 2 690 1 96 0 680 2 720 1 95 0 800 2 750 1 95 0 800 2 750 1 95 0 800 2 750 1 91 0 810 2 780 1 95 0 800 2 750 1 95 0 800 2 750 1 9...

Page 16: ...0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 8 6 2 6 9 0 0 820 0 380 1 090 0 910 0 380 1 190 1 040 0 380 1 300 1 880 0 370 2 300 2 150 0 360 2 410 1 500 0 410 1 710 1 610 0 410 2 350 1 770 0 410 2 390 2 110 0 390 2 220 2 090 0 380 2 220 1 710 0 410 2 390 1 890 0 410 2 390 2 110 0 390 2 220 2 090 0 ...

Page 17: ... 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 8 6 3 4 9 0 2 020 0 500 2 120 1 860 0 480 1 996 1 850 0 480 1 960 2 020 0 500 2 120 1 860 0 480 1 960 1 850 0 480 1 960 1 670 0 460 1 830 2 020 0 500 2 120 1 860 0 500 1 960 1 930 0 600 1 960 1 930 0 600 1 960 1 930 0 600 1 960 1 770 0 600 1 930 1 930 0 600 1 960 1 930 0 600 1 960 1...

Page 18: ...7 75 2 0 8 8 7 85 2 0 8 8 7 95 2 0 8 8 7 9 2 1 8 8 8 0 2 1 8 8 8 0 2 1 8 8 8 0 2 1 8 8 8 0 2 1 8 8 6 6 2 9 8 1 6 9 2 9 8 3 7 7 2 9 9 0 7 85 2 9 9 0 7 95 2 9 9 0 8 0 2 9 9 0 7 2 2 9 8 9 7 75 2 9 9 0 0 680 0 400 0 920 0 760 0 400 1 010 1 030 0 400 1 290 1 440 0 420 1 630 1 930 0 400 2 130 2 580 0 410 2 710 1 130 0 600 1 600 1 270 0 600 1 770 1 710 0 600 2 200 2 450 0 560 2 710 2 750 0 560 3 050 2 81...

Page 19: ...2 9 9 0 8 0 2 9 9 0 8 0 2 9 9 0 8 0 2 9 9 0 8 0 2 9 9 0 7 8 3 7 9 2 7 85 3 7 9 2 7 95 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 7 85 3 7 9 2 2 370 0 700 2 920 2 390 0 680 2 880 2 390 0 680 2 880 2 350 0 690 2 920 2 320 0 700 2 890 2 350 0 680 2 860 2 350 0 680 2 860 2 330 0 680 2 860 2 300 0 660 2 830 2 300 0 660 2 830 2 250 0 690 3 010 2 350 0 690 2 970 2 370 0 700 2 920 2 390 0 680 2 880 2 390...

Page 20: ...7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 7 92 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 8 0 3 7 9 2 2 210 0 810 2 650 2 150 0 790 2 620 2 130 0 770 2 590 2 130 0 770 2 590 2 210 0 810 2 620 2 120 0 790 2 590 2 100 0 770 2 560 2 070 0 770 2 560 2 140 0 810 2 670 2 210 0 810 2 650 2 150 0 790 2 620 2 130 0 770 2 590 2 210 0 810 2 620 2 120 0 790 2 590 2 100 0 770 2 560 2 2...

Page 21: ...1 8 10 5 9 4 1 8 10 5 9 4 1 9 11 2 9 4 1 9 11 2 9 4 1 9 11 2 9 4 1 9 11 2 9 4 1 9 11 2 8 7 2 6 10 6 8 8 2 6 11 1 9 4 2 6 11 6 9 4 2 6 11 6 9 4 2 6 11 6 9 4 2 6 11 6 8 9 2 6 11 6 9 4 2 6 11 6 1 050 0 340 1 380 1 110 0 340 1 510 1 210 0 330 1 570 2 270 0 330 2 710 2 700 0 330 3 060 3 220 0 360 3 520 2 020 0 480 2 760 2 120 0 480 3 000 2 130 0 480 3 110 2 470 0 460 3 140 2 710 0 460 3 140 2 710 0 460...

Page 22: ...4 2 7 11 6 9 4 2 7 11 6 9 4 2 7 11 6 9 4 2 7 11 6 9 4 3 4 11 6 9 4 3 4 11 6 9 4 3 4 11 6 9 4 3 5 11 6 9 4 3 5 11 6 9 4 3 5 11 6 9 4 3 4 11 6 2 100 0 510 3 330 2 100 0 510 3 330 2 100 0 510 3 330 2 210 0 530 3 400 2 050 0 510 3 230 2 050 0 510 3 230 2 050 0 510 3 230 1 960 0 490 3 100 1 960 0 490 3 100 1 960 0 490 3 100 2 170 0 530 3 420 2 250 0 530 3 410 2 090 0 510 3 320 2 090 0 510 3 320 2 090 0...

Page 23: ...11 6 9 4 3 4 11 6 9 4 3 5 11 6 9 4 3 4 11 6 9 4 3 4 11 6 9 4 3 5 11 6 9 4 3 5 11 6 9 4 3 4 11 6 9 4 3 5 11 6 9 4 3 4 11 6 9 4 3 4 11 6 1 940 0 590 3 390 1 890 0 580 3 270 1 890 0 580 3 270 1 890 0 580 3 270 1 910 0 590 3 340 1 820 0 580 3 220 1 820 0 580 3 220 1 750 0 550 3 130 1 960 0 590 3 390 1 920 0 590 3 370 1 870 0 580 3 230 1 870 0 580 3 230 1 890 0 590 3 320 1 800 0 580 3 200 1 800 0 580 3...

Page 24: ...er to 9 15 95 4 78 0 2 SNB130FKCH 1 100 U V 0 64 V W 0 64 W U 0 64 RC0J50 CF BLK WHT 14 2 WHT RED 14 2 RED BLK 14 2 800o550o285 40 2 1 3 450 NEO22 Cooling 4 0 1 1 4 5 1 860 4 78 1 045 4 58 3 83 47 44 850 530 Heating 4 5 1 0 5 0 1 860 4 32 945 4 12 4 76 48 47 850 490 MXZ 2A52VA Single phase 230V 50Hz 2 Max 30 Max 20 Refer to 9 Refer to 9 15 97 7 64 0 2 SNB130FKCH 1 400 U V 0 64 V W 0 64 W U 0 64 RC...

Page 25: ...9 0 2 SNB130FLDH1 ROTARY 1 400 U V 0 45 V W 0 45 W U 0 45 RC0J60 AA BLK WHT 15 2 WHT RED 15 2 RED BLK 15 2 840o710o330 57 2 2 7 600 NEO22 Cooling 5 4 2 9 6 8 2 525 5 69 1 295 5 49 4 17 46 44 650 510 Heating 6 8 2 6 9 0 2 470 6 39 1 455 6 19 4 67 48 47 640 510 MXZ 4A71VA Single phase 230V 50Hz 2 to 4 Max 60 Max 25 Refer to 9 Refer to 9 25 99 0 8 56 0 2 SNB130FLDH1 ROTARY 2 000 U V 0 45 V W 0 45 W U...

Page 26: ...emarks Capacity System Coefficient of performance C O P 2 Outdoor unit power supply MXZ 4A80VA Single phase 230V 50Hz 2 to 4 Max 70 Max 25 Refer to 9 Refer to 9 25 99 0 9 62 0 2 TNB220FMCH ROTARY 2 100 U V 1 41 V W 1 41 W U 1 41 PM8H60 UA BLK WHT 15 2 WHT RED 15 2 RED BLK 15 2 900o900o320 35 70 2 3 5 870 NEO22 Cooling 8 0 3 7 9 2 2 530 9 62 2 190 9 42 3 65 46 44 550 490 Heating 9 4 3 4 11 6 2 630 ...

Page 27: ... Cooling High FUNCTION FAN SPEED Heating High 49 SPL dB A 50 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL 0dB 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz Cooling High FUNCTION FAN SPEED Heating High 47 SPL dB A 48 LINE 27 NOISE CRITERIA CURVES 6 MXZ 2A40V...

Page 28: ... obstruction in front and on both sides of the unit 350mm or more 200mm or more 100mm or more 100mm or more Open two sides of left right or rear side 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL 0dB 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz Cooling High FUNC...

Page 29: ... B unit connection A unit connection Indoor and outdoor connect wiring 39O27 hole More than 100 mm Open as a rule More than 500 mm if the front and both sides are open More than 100 mm More than 200 mm if there are obstacles to both sides Open as a rule More than 500 mm if the back both sides and top are open More than 350 mm MXZ 4A71VA Unit mm 84 360 121 17 7 17 7 360 6 396 38 31 500 288 233 1 63...

Page 30: ...out Air in Base bolt M10 2 U shape notched holes Base bolt M10 2 12O36 Oval hole 531 3 900 480 8 350 900 460 317 50 23 Indoor and outdoor connect wiring 26O45 hole 30 33 320 23 10 88 Gas pipe 12 7 flared 1 2 A unit 9 52 flared 3 8 B C D unit 6 35 flared 1 4 Liquid pipe D unit connection C unit connection B unit connection A unit connection 1 Installation space Note Leave front and both sides clear...

Page 31: ...PLAY P C BOARD LED2 SW1 CN936 LED1 BLU 7 Terminal block Connector 3 Symbols below indicate 2 Use copper conductors only for field wiring diagram for servicing refer to the indoor unit electric wiring 1 About the indoor side electric wiring NOTES SYMBOL NAME SYMBOL NAME CT61 CT761 CT781 C63A C63B C63C DB61 DB65 NF F61 F64 F801 F901 IC801 IPM IC932 L64 L65 MC MF NR64 RT61 RT62 RT64 RT65 RT68 COMPRES...

Page 32: ... S3 S2 S1 GROUND BLK BLK BLK BLU BLU BLU BLU YLW ORN RED BLK 12 24V 230V 12 24V 230V 12 24V 230V BLU BLK TO INDOOR UNIT No C CONNECTING TO INDOOR UNIT No B CONNECTING TO INDOOR UNIT No A CONNECTING TB4 TB3 TB2 NOISE FILTER P C BOARD POWER BOARD ELECTRONIC CONTROL P C BOARD Terminal block Connector 3 Symbols below indicate 2 Use copper conductors only for field wiring diagram for servicing refer to...

Page 33: ... CN791 1 4 3 2 5 6 CN792 1 4 3 2 5 6 LEV B RED BRN BLU ORN YLW WHT 1 4 3 2 5 6 CN793 LEV WHT YLW ORN BLU BRN RED C 1 4 3 2 5 6 CN794 LEV WHT YLW ORN BLU BRN RED D CN663 1 2 RT6D RT6C RT6B RT6A GRY GRY GRY GRY GRY GRY GRY GRY 2 3 4 5 6 1 7 8 CN662 RT62 GRY GRY RT61 7 6 5 4 3 2 1 8 CN661 E RED BRN BLU ORN YLW WHT LEV CN795 6 5 2 3 4 1 BLU 21S4 BLU 5 4 3 2 1 3 2 1 MF CN931 CN932 GRN GRN LDE2 LDE1 2 1...

Page 34: ...ORN YLW BLU BLU BRN BLU BLK BLU TB2 12 24V 230V BLK BLK BLK S1 S2 S3 S1 S2 S3 S1 S2 S3 S1 S3 S2 TO INDOOR UNIT No D CONNECTING R64B CN663 RT68 RT65 GRY GRY 2 1 CN61 1 2 3 5 4 1 3 2 1 2 3 CN602 1 2 3 CN601 CN603 1 2 3 CN604 F801 CN781 1 2 3 4 5 CN702 5 4 3 2 1 7 6 CN701 1 2 1 2 3 CN801 POWER SUPPLY N 230 V 50Hz 2 3 4 1 S R WHT BLK RED YLW L R64A F64 X64 TAB4 BLK BLK BLK BLK 1 2 3 4 5 CT1 CT2 N F CN...

Page 35: ...perature thermistor RT62 Stop valve with service port Stop valve with service port Refrigerant pipe diameter is different according to indoor unit to be connected When using extension pipes refer to the tables below When diameter of refrigerant pipe is different from that of outdoor unit union use optional Different diameter pipe Outdoor unit union diameter For Liquid 6 35 1 4 Indoor unit A Gas 9 ...

Page 36: ...erant flow in cooling Refrigerant flow in heating Ambient temperature thermistor RT65 Outdoor heat exchanger temperature thermistor RT68 FAN OUT HEX OUT Strainer 100 Refrigerant pipe diameter is different according to indoor unit to be connected When using extension pipes refer to the tables below When diameter of refrigerant pipe is different from that of outdoor unit union use optional Different...

Page 37: ...ll valve with service port Ball valve Power receiver LEV A LEV B LEV C LEV D Oil separator Compressor Muffler 4 way valve LEV E Unit D gas pipe temperature thermistor 9 52 Indoor unit C Unit C gas pipe temperature thermistor 9 52 6 35 6 35 6 35 6 35 Indoor unit B Unit B gas pipe temperature thermistor 9 52 Indoor unit A Indoor unit A Indoor unit B Indoor unit C Indoor unit D Unit A gas pipe temper...

Page 38: ...all valve Distributor Power receiver LEV A LEV B LEV C LEV D Oil separator Compressor High pressure switch Distributor Muffler 4 way valve LEV E Outdoor heat exchanger Unit D gas pipe temperature thermistor 9 52 Indoor unit C Unit C gas pipe temperature thermistor 9 52 6 35 6 35 6 35 6 35 Indoor unit B Unit B gas pipe temperature thermistor 9 52 Indoor unit A Indoor unit A Indoor unit B Indoor uni...

Page 39: ... 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 t...

Page 40: ... 2A52VA 22 class 8 5 7 8 7 1 6 4 5 8 5 1 9 3 8 5 7 8 7 0 6 3 5 6 10 6 9 7 8 8 7 9 7 1 6 3 35 class 25 class 25 4 23 4 21 5 19 5 17 6 15 6 13 7 11 7 24 0 22 2 20 3 18 5 16 6 14 8 12 9 11 1 22 class 25 class 25 9 23 9 21 9 19 9 17 9 15 9 13 9 12 0 35 class ...

Page 41: ...9 14 5 31 9 29 4 27 0 24 5 22 1 19 6 17 2 14 7 35 class 50 class MXZ 4A80VA 22 class 8 5 7 8 7 1 6 4 5 8 5 1 9 3 8 5 7 8 7 0 6 3 5 6 71 class 60 class 10 6 9 7 8 8 7 9 7 1 6 3 13 1 11 9 10 8 9 7 8 7 7 7 13 7 12 4 11 3 10 1 9 0 8 0 17 0 15 4 13 9 12 5 11 1 9 7 50 class 35 class 25 class 25 4 23 4 21 5 19 5 17 6 15 6 13 7 11 7 24 0 22 2 20 3 18 5 16 6 14 8 12 9 11 1 22 class 25 class 60 class 71 cla...

Page 42: ... 5 1 0 1 5 HEAT Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Capacity Frequency Hz 1 22 class unit in single operation 2 25 class unit in single operation 3 35 class unit in single operation 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Total inpu...

Page 43: ... 0 1 5 COOL Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Capacity Frequency Hz 1 22 class unit in single operation 2 25 class unit in single operation 3 35 class unit in single operation 4 50 class unit in single operation 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 0 50 ...

Page 44: ...t in single operation 2 25 class unit in single operation 3 35 class unit in single operation 4 50 class unit in single operation 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequenc...

Page 45: ...5 class unit in single operation 3 35 class unit in single operation 4 50 class unit in single operation 0 50 100 150 0 5 1 0 1 5 COOL Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 COOL Total input Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 HEAT Total input Frequency Hz 5 60 class unit in single operation 0 50 100 150 0 5 1 0 1 5 HEAT Total input Fre...

Page 46: ...mperature Relative humidity 20 50 25 60 30 70 10 4 Outdoor low pressure and outdoor unit current single operation 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 f f Gauge 1 COOL operation MXZ 2A40VA MXZ 2A52VA Ambient temperature Ambient humidity Ambient temperature Ambient humidity Outdoor low pre...

Page 47: ...ent temperature Ambient humidity Outdoor low pressure MPa Gauge kgf F Gauge Outdoor unit current A 0 7 0 8 0 9 1 0 1 1 1 2 1 3 40Hz 1 2 3 4 5 40Hz 13 12 11 10 9 8 7 15 20 25 30 35 50 60 70 15 20 25 30 35 50 60 70 Ambient temperature Ambient humidity Ambient temperature Ambient humidity Outdoor low pressure MPa Gauge kgf F Gauge Outdoor unit current A 0 7 0 8 0 9 1 0 1 1 1 2 1 3 40Hz 1 2 3 4 5 40Hz...

Page 48: ... 7 0 8 0 9 1 0 1 1 1 2 1 3 24Hz 1 2 3 4 5 24Hz 13 12 11 10 9 8 7 15 20 25 30 35 50 60 70 15 20 25 30 35 50 60 70 Ambient temperature Ambient humidity Ambient temperature Ambient humidity Outdoor low pressure MPa Gauge kgf F Gauge Outdoor unit current A 0 8 0 9 1 0 1 1 1 2 1 3 1 4 24Hz 1 2 3 4 5 24Hz 14 13 12 11 10 9 8 15 20 25 30 35 50 60 70 15 20 25 30 35 50 60 70 25 class unit 35 class unit 50 c...

Page 49: ...ient temperature 48Hz Outdoor unit current A 60 class unit 5 10 15 20 25 2 3 4 5 6 7 Ambient temperature 32Hz Outdoor unit current A 22 class unit 25 class unit 5 10 15 20 25 2 3 4 5 6 7 Ambient temperature 32Hz Outdoor unit current A 35 class unit 5 10 15 20 25 2 3 4 5 6 7 Ambient temperature 32Hz Outdoor unit current A 50 class unit 5 10 15 20 25 2 3 4 5 6 7 Ambient temperature 32Hz Outdoor unit...

Page 50: ...r for the air conditioner before making the setting Set the 2nd Dip Switch of SW1 on the display P C board or the outdoor electronic control P C board to ON to enable this function To lock the operation mode in COOL DRY mode set the 1st Dip Switch of SW1 on the display P C board or the outdoor electronic control P C board to OFF To lock the operation in HEAT mode set the same switch to ON Turn on ...

Page 51: ...one indoor unit has to be performed cooling operation for 30 minutes to complete the detection However this function be may not work due to the condition of the unit or the environment For example gas leak closed stop valve unit failure such as defective LEV indoor outdoor temperature OUTDOOR UNIT Refrigerant piping Indoor outdoor connecting wire OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT A INDOOR UNI...

Page 52: ...ED 5 Turn OFF the power supply after the confirmation and turn OFF the 4th Dip Switch of SW1 on the diplay P C board 6 Turn ON the power supply NOTE This function does not work when the jumper wire JGO on the inverter P C board is cut OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT B Incorrect piping A B A B ON AUTO LINE CORRECTING LED1 Red Once 3 times LED2 Yellow Once 3 times Number of blinks Wiring line...

Page 53: ...al voltage of smoothing capacitor 4 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the components 5 When connecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires MXZ 2A40VA MXZ 2A52VA MXZ 3A54VA MXZ 4A71VA MXZ 4A80VA 13 2 Failure mode recall function This air conditioner can memorize the abno...

Page 54: ...opens during compressor running When 28A current flow into intelligent power module When discharge temperature exceeds 116 during operation Compressor can restart if discharge temperature thermistor reads 100 or less 3 minutes later When the outdoor heat exchanger temperature exceeds 70 during cooling or the indoor gas pipe temperature exceeds 70 during heating When the fin temperature exceeds 87 ...

Page 55: ... times Goes out 6 times Goes out When the indoor unit detectes any abnormal in the LEV for drain Lighting Lighting 14 time flash Refer to 13 6 E How to check inverter compressor Power module There is a high possibility that the power module is out of order 7 times Goes out Abnormal point Failure mode protection Condition Correspondence Indoor outdoor unit failure mode recall function LED indicatio...

Page 56: ...flow into intelligent power module When discharge temperature exceeds 116 during operation Compressor can restart if discharge temperature thermistor reads 100 or less 3 minutes later When high pressure is detected with the high pressure switch HPS during operation MXZ 4A80 When the outdoor heat exchanger temperature exceeds 70 during cooling or the indoor gas pipe temperature exceeds 70 during he...

Page 57: ... communication between boards protection stop is continuously performed twice Communication error occurs between the electronic control P C board and power board for more than 10 seconds Current sensor protection stop is continuously performed twice When a short or open circuit is detected in the current sensor during compressor operating The protection stop of the zero cross detecting circuit is ...

Page 58: ...p valve Reconnect compressor connector Refer to 13 6 E How to check inverter compressor Check the stop valve Twice Goes out 4 times Goes out 5 times Goes out 9 times Goes out When 28A current flow into intelligent power module When the bus bar voltage exceeds 430V or falls to 50V or below during compressor operating When discharge temperature exceeds 116 during operation Compressor can restart if ...

Page 59: ...ormality of the product but check the following points Check if indoor filters are clogged Check if refrigerant is short Check if indoor outdoor unit air circulation is short cycled When the outdoor heat exchanger temperature exceeds 58 during operation 19 LED1 Red LED2 Yellow Abnormal point Condition Correspondence Indication Condition Outdoor unit operates normally No Symptom 20 21 Outdoor unit ...

Page 60: ...r fan motor Refer to 13 6 G Check of outdoor fan motor Lighting 8 times Current sensor protection Replace the power board Lighting 11 times Communication between P C boards protection Check the connecting wire between outdoor electronic control P C board and power board Lighting 12 times Zero cross detecting circuit protection Check the connecting wire among outdoor electronic control P C board no...

Page 61: ...s are clogged Check if refrigerant is short Check if indoor outdoor unit air circulation is short cycled Twice Lighting Once Lighting When the frequency of the compressor is kept 80Hz or more and the discharge temperature is kept under 50 COOL mode 40 HEAT mode for more than 40 minutes When the frequency of the compressor is kept 80Hz or more and the discharge temperature is kept under 39 for more...

Page 62: ...re Normal HPS 3 7 0 15MPa 4 8 MPa Open Close 0 05 0 1 High pressure switch HPS MXZ 4A80 Normal 1Each phase MXZ 4A80 MXZ 3A54 4A71 1 29Ω 1 49Ω 0 39Ω 0 49Ω 13 5 Trouble criterion of main parts MXZ 2A40VA MXZ 2A52VA MXZ 3A54VA MXZ 4A71VA MXZ 4A80VA 1 2kΩ 1 56kΩ MXZ 3A 4A 12Ω 16Ω MXZ 2A Defrost thermistor RT61 Ambient temperature thermistor RT65 Outdoor heat exchanger temperature thermistor RT68 Gas p...

Page 63: ...utdoor electronic control P C board Replace the noise filter P C board Is fuse F64 blown Is the input voltage to the power board 230V AC Replace the fuse Replace the reactor 13 6 Troubleshooting flow Turn on power supply No Yes Yes No No Yes No Yes Check the connecting of parts of main power supply circuit Is there voltage of 230V AC in the power supply terminal block Is the output voltage from th...

Page 64: ...r P C board or the outdoor electronic control P C board W2 Is there any error of the indoor outdoor connecting wire such as the damage of the wire intermediate connection poor contact to the terminal block Is there any error of the indoor outdoor connecting wire such as the damage of the wire intermediate connection poor contact to the terminal block No Replace the indoor outdoor connecting wire R...

Page 65: ...wire leading to the compressor 2 3 minutes after turning on the power supply start EMERGENCY OPERATION in COOL mode Is there voltage of 230V AC between pin1 and pin 2 at connector CN912 W 1 Turn off power supply of the indoor and the outdoor unit and disconnect the connector CN933 or CN781 2 3 minutes after turning on the power supply start EMERGENCY OPERATION in COOL mode Replace the 4 way valve ...

Page 66: ...with a hand Disconnect the connector CN791 LEV A CN792 LEV B CN793 LEV C CN794 LEV D CN795 LEV E Is there normal resistance to LEV coil Normal Replace the inverter P C board or the outdoor electronic control P C board Replace LEV coil When cooling heat exchanger of non operating indoor unit frosts When heating non operating indoor unit get warm LED display LED1 LED2 Lighting Lighting Lighting Once...

Page 67: ... to the compressor U BLK V WHT V WHT W RED W RED U BLK Output voltage COOL 150V 48Hz HEAT 170V 64Hz Is voltage output W1 W2 Turn off power supply of indoor and outdoor unit and measure the compressor winding resistance between the compressor terminals Is the resistance between each terminal normal Is the input voltage to the outdoor electronic control P C board 370V or more Reconnect the lead wire...

Page 68: ...temperature Gas pipe temperature Unit A Gas pipe temperature Unit B Gas pipe temperature Unit C Gas pipe temperature Unit D Ambient temperature Fin temperature Symbol RT61 RT62 RT68 RT6A RT6B RT6C RT6D RT65 RT64 Connector Pin No Between CN661 pin1 and pin2 Between CN661 pin3 and pin4 Between CN661 pin7 and pin8 Between CN662 pin1 and pin2 Between CN662 pin3 and pin4 Between CN662 pin5 and pin6 Bet...

Page 69: ...utdoor electronic control P C board and turn on the power supply Rotate the outdoor fan motor manually and measure the voltage of CN931 Between 1 and 5 Between 2 and 5 Between 3 and 5 Is the resistance between each terminal of outdoor fan motor normal Does the outdoor fan motor rotates smoothly Does the voltage between each terminal become 5V DC and 0V DC repeatedly Replace the outdoor DC fan moto...

Page 70: ... dose not operate different operating models in multisystem When you try to run two indoor unit simultaneously one for cooling and the other for heating the unit which transmits signal to the outdoor units earlier decides the operation mode The other unit indicates as shown in the figure below When the above situation occurs set all the indoor units to the same mode turn OFF the indoor units and t...

Page 71: ...ce k Resistance k Output to drive outdoor fan motor CN932 Fin temperature thermistor RT64 CN662 Ambient temperature thermistor RT65 CN663 Discharge temperature thermistor RT62 CN661 Defrost thermistor RT61 CN661 230V AC Input Front side of unit 325V DC 8V DC 5V Output to drive compressor LDW LDV LDU JK JGO 1 Inverter P C board MXZ 2A40VA MXZ 2A52VA 13 7 Test point diagram and voltage 5V DC 12V DC ...

Page 72: ...pressure switch Gas pipe D thermistor Gas pipe C thermistor Gas pipe B thermistor Gas pipe A thermistor CN932 20 90V AC GND 5V 5V DC pulse wave To fan motor Defrost thermistor RT61 Discharge temperature thermistor RT62 Outdoor heat exchanger temperature thermistor RT68 Rush current relay R V coil 12V DC 15V 15V CN931 CN661 CN701 Signal transmission To power board 5V DC pulse wave GND CN702 Signal ...

Page 73: ...0Hz Input 230V AC 50Hz Output CN901 To electronic control P C board MXZ 3A54VA MXZ 4A71VA MXZ 4A80VA F64 FUSE 2A 250V F911 FUSE 1A 250V 3 Noise filter P C board CN902 To power board CN903 To power board 230V AC 50Hz Output NR64 VARISTOR ...

Page 74: ... AC Back side of unit MXZ 2A40VA MXZ 2A52VA Front side of unit To inverter P C board CN934 F61 FUSE 20A 250V 4 Power P C board FUSE F64 3 15A 250V 230V AC Output 230V AC Input GND 12V R V coil Zero cross X64 Primary current ...

Page 75: ...earth CN5 Primary current detection Connect to the noise filter CN2 Connect to the controller board 1 5 Signal transmission To electronic control P C board 5V DC pulse wave 2 5 Zero cross signal 3 4 Not used 6 5 15V 7 5 15V Signal reception From electronic control P C board 5V DC pulse wave CN3 Fin temperature thermistor 5 Outdoor Power board ...

Page 76: ...76 MXZ 2A40VA MXZ 2A52VA 6 Display P C board MXZ 2A40VA MXZ 2A52VA 7 Interface P C board SW1 GND 5V LED2 LED1 GND 5V Serial signal room A Serial signal room B 230V AC ...

Page 77: ...t 2 The terminal with this connector has the locking mechanism 1Slide the sleeve 2Pull the terminal while pushing the locking lever 1Hold the sleeve and pull out the terminal slowly The terminal which has the locking mechanism can be detached as shown below There are two types Refer to 1 and 2 of the terminal with locking mechanism The terminal without locking mechanism can be detached by pulling ...

Page 78: ... and the following connectors Power P C board CN912 4 way valve Inverter P C board CN931 CN932 Fan motor CN661 Defrost thermistor discharge temperature thermistor and outdoor heat exchanger temperature thermistor CN663 Ambient temperature thermistor CN791 CN792 LEV A LEV B 4 Remove the compressor connector CN61 5 Remove the screws fixing the relay panel See Photo 2 6 Remove the inverter assembly S...

Page 79: ...4 way valve 1 Remove the top panel cabinet and service panel Refer to 1 2 Disconnect the power supply and indoor outdoor connecting wire and remove the back panel Refer to 1 3 Remove the inverter assembly Refer to 2 4 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0 MPa 5 Detach the welded part of the suction and the discharge pipe ...

Page 80: ...91 CN792 CN793 CN663 CN794 MXZ 4A71VA CN795 CN931 CN932 Disconnect the noise filter P C board connector CN912 7 Remove the screws of the electrical parts and remove the electrical parts Photo 4 8 Remove the propeller 9 Remove the screws of the separator and remove the separator Photo 6 10 Remove the sound proof felt Photo 6 11 Detach the welded parts of the compressor suction and dis charge pipes ...

Page 81: ...the propeller 4 Remove the fan motor Photo 6 Screws of the outdoor fan motor Propeller Propeller nut Separator Sound proof felt Photo 3 Screw of the rear guard Screw of the back panel Screws of the back panel Screws of the back panel Screw of the back panel Screws of the electrical parts R V coil 4 way valve LEV coil Expansion valve Suction pipe welded part Discharge pipe welded part Photo 4 Photo...

Page 82: ...move the top panel Photo 1 2 Remove the service panel the cabinet and the back panel Recover refrigerant gas 3 Remove the electrical parts Photo 4 4 Detach the welded parts of 4 way valve and pipe Photo 7 4 Removing the expansion valve 1 Remove the top panel Photo 1 2 Remove the service panel the cabinet and the back panel Photo 1 2 Gas recovery is not required if the unit is pumped down 3 Remove ...

Page 83: ...5 CN931 CN932 Disconnect the noise filter P C board connector CN912 6 Remove the screws of the electrical parts and remove the electrical parts 7 Remove the propeller 8 Remove the screws of the separator and remove the separator 9 Remove the sound proof felt 10 Detach the welded parts of the compressor suction and dis charge pipes Photo 3 11 Remove the compressor nuts and remove the compressor Pho...

Page 84: ...hoto 1 Gas recovery is not required if the unit is pumped down 3 Remove the LEV coils 4 Detach the welded parts of expansion valves and pipes 4 way valve R V coil Welded parts LEV coils Expansion valves Photo 5 Photo 6 2 Removing the fan motor 1 Remove the top panel the service panel and the front panel Photo 1 2 Disconnect the connector CN931 and CN932 on the outdoor electronic control P C board ...

Page 85: ...RATING PROCEDURE PHOTOS 5 Removing the reactor 1 Remove the top panel Photo 1 2 Disconnect the reactor lead wire 3 Remove the screws of the reactor and remove the reactor Photo 7 Photo 7 Screws of the reactor ...

Page 86: ...86 PARTS LIST 15 15 1 OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS 1 11 12 2 15 17 13 10 9 MXZ 2A40VA MXZ 2A52VA 3 4 5 6 7 8 16 14 18 19 ...

Page 87: ... 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 1 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 4 2 1 1 Symbol in Wiring Diagram Q ty unit Remarks Part No No Part Name MXZ 2A40VA E1 MXZ 2A52VA E1 CABINET GRILLE PROPELLER BASE COMPRESSOR COMPRESSOR RUBBER SET STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL BACK PANEL EXPANSION VALVE EXPANSION VALVE COIL 4 WAY VALVE CONDENSER NET SEPARATOR MOTOR SUPPORT TOP PANEL OUTDO...

Page 88: ...7 337 E02 735 382 E02 A47 374 E02 935 374 E02 935 374 E02 A47 451 E02 A48 451 E02 127 382 E02 661 385 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol in Wiring Diagram Q ty unit 250V 20A 3P 3P 3P Including heat sink and RT64 Including heat sink and RT64 250V 3 15A Remarks Part No No Part Name L64 21S4 RT61 62 68 RT65 RT64 L65 F61 TB1 TB3 TB2 F64 801 901 NR62 63 64 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

Page 89: ...in hole Soft vinyl chloride hose of 25mm inside diameter MXZ 2A40VA MXZ 2A52VA 15 3 DRAIN SOCKET Symbol in Wiring Diagram Q ty unit MXZ 2A40VA Remarks Parts No Parts Name E1 MXZ 2A52VA E1 E02 838 704 1 DRAIN SOCKET No 1 1 1 ...

Page 90: ...90 MXZ 3A54VA MXZ 4A71VA 15 4 OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS 3 2 1 4 13 21 22 23 24 11 12 5 6 7 8 9 10 14 15 16 17 18 19 20 ...

Page 91: ...VALVE LEV COIL EXPANSION VALVE LEV COIL BASE UNION GAS UNION GAS UNION LIQUID BACK PANEL SERVICE PANEL BALL VALVE GAS 5 8 BALL VALVE LIQUID 3 8 POWER RECEIVER EXPANSION VALVE LEV COIL 4 WAY VALVE TOP PANEL REAR GUARD HEAT EXCHANGER MOTOR SUPPORT CAPILLARY TUBE CAPILLARY TUBE SET CAPILLARY TUBE OIL SEPARATOR No MC LEV D LEV C LEV B LEV A LEV E 1 1 1 1 3 1 1 1 1 1 1 1 1 1 3 1 4 1 1 1 1 1 1 1 1 1 1 1...

Page 92: ...92 10 9 8 1 2 4 3 5 7 12 6 MXZ 3A54VA MXZ 4A71VA 15 5 OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 11 16 15 6 ACCESSORY 17 ...

Page 93: ...E TEMPERATURE THERMISTOR SET GAS PIPE TEMPERATURE THERMISTOR SET R V COIL THERMISTOR SET AMBIENT TEMPERATURE THERMISTOR REACTOR FUSE FUSE FUSE VARISTOR SET No MF TB2 5 TB1 RT6A B C RT6A B C D 21S4 RT61 62 68 RT65 L F801 F911 F64 NR64 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 RC0J60 Including heat sink and RT64 Indoor uni...

Page 94: ...94 MXZ 4A80VA 15 7 OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS 3 2 1 4 13 16 22 23 24 25 5 6 12 11 7 89 10 17 15 14 18 19 20 21 2 ...

Page 95: ...COMPRESSOR COMPRESSOR RUBBER SET EXPANSION VALVE LEV COIL EXPANSION VALVE LEV COIL EXPANSION VALVE LEV COIL EXPANSION VALVE LEV COIL BASE ASSEMBLY UNION PIPE COVER BALL VALVE LIQUID 3 8 BALL VALVE GAS 5 8 REAR PANEL POWER RECEIVER 4 WAY VALVE HIGH PRESSURE SWITCH EXPANSION VALVE LEV COIL TOP PANEL REAR GUARD HEAT EXCHANGER SIDE PANEL CAPILLARY TUBE CAPILLARY TUBE SET CAPILLARY TUBE OIL SEPARATOR N...

Page 96: ...96 16 15 9 ACCESSORY 11 10 9 1 2 4 3 5 6 8 7 MXZ 4A80VA 15 8 OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 12 ...

Page 97: ...SE FILTER P C BOARD TERMINAL BLOCK TERMINAL BLOCK GAS PIPE TEMPERATURE THERMISTOR R V COIL THERMISTOR SET AMBIENT TEMPERATURE THERMISTOR FUSE FUSE FUSE VARISTOR SET No MF L TB2 5 TB1 RT6A B C D 21S4 RT61 62 68 RT65 F801 F911 F64 NR64 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 PM8H60 Indoor unit connecting Including heat sink and RT64 Power supply 1A 250V 2A 250V 3 15A 250V DEFROST DISCHARGE OUTDOOR HEAT EXCHAN...

Page 98: ...nched hole 4 6 450 8 10 o 48 480 42 6 71 6 Z Z 7 79 327 103 1 537 2 610 4 534 534 386 416 51 8 150 109 4 29 2 760 8 29 2 6 4 6 4 832 386 Punched hole Punched hole 5 6 5 6 MAC 855SG Model name Model code Applied unit MAC 888SG 506 888 MXZ 2A40 MXZ 2A52 MXZ 3A54 MXZ 4A71 MAC 855SG 51H 855 MXZ 4A80 For different diameter pipes MXZ 3A54 MXZ 4A71 MXZ 4A80 Model name Connected pipes diameter Length A Le...

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Mitsubishi Electric MXZ-2A40VA, Service Manual

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