Midea MDV-D22Q1/N1-D Technical Manual Download Page 26 | Manualshive

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11. Troubleshooting contents

Display Panels ..................................................................................... 27

Errors .................................................................................................. 32

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Troubleshooting .................................................................................. 33

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Appendix ....................................................

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Summary of Contents for MDV-D22Q1/N1-D

Page 1: ...TECHNICAL MANUAL ONE WAY CASSETTE MDV D22Q1 N1 D MDV D36Q1 N1 D MDV D71Q1 N1 D...

Page 2: ...MCAC VTSM 2017 01 One way Cassette 2...

Page 3: ...One way Cassette 1 Features 4 2 Specifications 5 3 Dimensions 8 4 Service Spaces 10 5 Piping Diagrams 11 6 Wiring Diagrams 12 7 Capacity Tables 15 8 Electrical Characteristics 21 9 Sound Levels 22 10...

Page 4: ...o folding type air filters and two standard formaldehyde absorption nets improve the air quality greatly The design of a long air outlet and a wide guide fan blade which enlarges the range of flow tra...

Page 5: ...3 h 523 404 275 Sound pressure level H M L dB A 38 34 30 Indoor unit Dimension W H D mm 1054 153 425 Packing W H D mm 1155 245 490 Net Gross weight kg 12 5 16 Panel Dimension W H D mm 1180 25 465 Pack...

Page 6: ...pressure level H M L dB A 40 38 34 Indoor unit Dimension W H D mm 1054 153 425 Packing W H D mm 1155 245 490 Net Gross weight kg 13 16 5 Panel Dimension W H D mm 1180 25 465 Packing W H D mm 1232 107...

Page 7: ...2 Sound pressure level H M L dB A 44 41 37 Dimension W H D mm 1275 189 450 Indoor unit Packing W H D mm 1370 295 505 Net Gross weight kg 19 5 23 8 Dimension W H D mm 1350 25 505 Panel Packing W H D mm...

Page 8: ...MCAC VTSM 2017 01 One way Cassette 8 428 20 17 290 465 153 25 74 202 65 143 290 50 50 208 3 Dimensions MDV D22Q1 N1 D MDV D36Q1 N1 D 60 1060 60 1180 890 119 51 890 78 43 1020...

Page 9: ...B 228 42 69 60 70 300 33 56 MDV D71Q1 N1 D 119 170 75 30 84 1350 1054 1061 51 121 1235 1235 Please use the installation paper plate to make sure the position of the installation screws 4 10 Screw fixi...

Page 10: ...able place A place where high frequency waves are generated The appliance shall not be installed in the laundry Please comply with the related national electric standard to make electric insulation fo...

Page 11: ...One way Cassette MCAC VTSM 2017 01 11 5 Piping Diagrams motor fan T2B flare nut T1 EXV T2 gas side heat exchanger flare nut liquid side...

Page 12: ...MCAC VTSM 2017 01 One way Cassette 12 6 Wiring Diagrams MDV D22Q1 N1 D MDV D36Q1 N1 D...

Page 13: ...0Hz To outdoor unit controller AC 220 240V 50H communication communication z TRANSFORMER L N X Y E P Q L N DM CN5CN20 CN15 ON ON ON CN10 ON CN1 CN11 SW1 SW2 SW5 SW6 ENC1 main control panel CN8 CN22 CN...

Page 14: ...porator 4 5600W 2 0HP T2B Outlet temp sensor of evaporator 5 7100W 2 5HP XP1 3 Butt connection socket 6 8000W 3 0HP XS1 3 Butt connection socket 7 9000W 3 2HP TR Power transformer 8 11200W 4 0HP 9 140...

Page 15: ...0 1 2 1 1 1 5 1 2 1 7 1 2 1 8 1 2 1 8 1 2 1 9 1 1 1 9 1 1 2 2 10 0 1 5 1 3 1 8 1 4 2 1 1 5 2 2 1 5 2 3 1 6 2 6 1 6 2 9 1 5 12 0 1 5 1 3 1 8 1 4 2 1 1 5 2 2 1 5 2 3 1 6 2 6 1 6 2 8 1 5 14 0 1 5 1 3 1...

Page 16: ...3 3 6 2 4 3 8 2 5 4 1 2 3 4 2 2 2 27 0 2 5 1 9 2 9 2 1 3 4 2 3 3 6 2 4 3 8 2 5 4 0 2 2 4 2 2 2 29 0 2 5 1 9 2 9 2 1 3 4 2 3 3 6 2 4 3 8 2 5 4 0 2 2 4 1 2 2 31 0 2 5 1 9 2 9 2 1 3 4 2 3 3 6 2 4 3 8 2...

Page 17: ...3 5 6 3 4 5 9 3 5 5 9 3 2 6 0 3 1 39 0 3 9 2 7 4 6 3 0 5 3 3 3 5 6 3 4 5 7 3 4 5 8 3 2 6 0 3 1 42 0 3 9 2 7 4 6 3 0 5 3 3 3 5 6 3 4 5 7 3 4 5 8 3 2 6 0 3 1 44 0 3 9 2 7 4 6 3 0 5 3 3 3 5 6 3 4 5 7 3...

Page 18: ...2 38 2 20 2 13 2 02 1 85 13 70 15 00 2 49 2 38 2 20 2 13 2 02 1 85 2 2 20 19 8 1 46 1 46 1 46 1 46 1 46 1 46 19 18 8 1 56 1 56 1 56 1 56 1 56 1 56 17 16 7 1 64 1 64 1 64 1 64 1 64 1 64 15 14 7 1 69 1...

Page 19: ...3 04 3 04 3 04 3 04 3 04 3 04 5 60 5 00 3 16 3 16 3 16 3 16 3 16 3 16 3 70 3 00 3 32 3 32 3 32 3 32 3 32 3 32 0 70 0 00 3 56 3 56 3 56 3 56 3 56 3 36 2 20 3 00 3 76 3 76 3 76 3 76 3 68 3 36 4 10 5 00...

Page 20: ...0 5 29 6 00 7 00 6 30 6 30 6 30 6 11 5 80 5 29 7 90 9 00 6 49 6 49 6 30 6 11 5 80 5 29 9 80 11 00 6 68 6 68 6 30 6 11 5 80 5 29 11 80 13 00 6 93 6 80 6 30 6 11 5 80 5 29 13 70 15 00 7 12 6 80 6 30 6 1...

Page 21: ...e V Min V Max V MCA MFA KW FLA MDV D22Q1 N1 D 50 220 240 198 264 0 24 15 0 012 0 192 MDV D36Q1 N1 D 50 220 240 198 264 0 25 15 0 012 0 2 MDV D71Q1 N1 D 50 220 240 198 264 0 36 15 0 43 0 288 Remark MCA...

Page 22: ...One way Cassette 22 9 1 Test condition 1 0m 9 Sound Levels ONE WAY CASSETTE TYPE 1 4m Microphone 9 2 Test value Model Sound test value dB A H M L MDV D22Q1 N1 D 38 34 30 MDV D36Q1 N1 D 40 38 34 MDV D7...

Page 23: ...One way Cassette MCAC VTSM 2017 01 23 MDV D22Q1 N1 D 80 70 60 NC60 50 NC50 40 H M 30 L NC40 NC30 20 NC20 10 0 63 125 250 500 1000 2000 4000 8000...

Page 24: ...Cassette 24 MDV D36Q1 N1 D 80 70 60 NC60 50 40 H M 30 L NC50 NC40 NC30 20 NC20 10 0 63 125 250 500 1000 2000 4000 8000 MDV D71Q1 N1 D 80 70 60 NC60 50 H 40 M L 30 NC50 NC40 NC30 20 NC20 10 0 63 125 25...

Page 25: ...ening the flexible drainage pipe Big gasket 8 Necessary fastener for hanging the air conditioner Screw 8 Necessary fastener for hanging the air conditioner Panel installation bolt 6 7 For installing t...

Page 26: ...26 11 Troubleshooting contents 1 Display Panels 27 2 Errors 32 3 Troubleshooting 33 4 Appendix Error Marcador no definido...

Page 27: ...n Cooling and heating modes set temperature Fan only mode indoor ambient temperature OPERATION LED on Cold draft prevention4 or outdoor unit defrosting operation5 OPERATION and DEF FAN lights on Set t...

Page 28: ...Unit HP 3 Network address1 0 63 4 Set temperature 5 Indoor ambient temperature Minimum value 9 C 6 Reserved indoor ambient temperature2 Minimum value 9 C 7 Indoor heat exchanger mid point temperature...

Page 29: ...ddress Calculate the sum of the contributions indicated by the LEDs that are either on or flashing using the contribution values shown in Table 3 4 Add the sum of the LED contributions to the address...

Page 30: ...ons Unit address 1 Not sounding OPERATION On 0 15 0 14 8 4 2 14 0 14 TIMER On DEF FAN On ALARM Off 2 Not sounding OPERATION Flashing 16 31 16 15 8 4 2 1 31 16 15 TIMER Flashing DEF FAN Flashing ALARM...

Page 31: ...ns indicates the capacity setting of the main PCB Four examples of using LED statuses to determine unit capacity setting are shown in Table 3 7 Table 3 7 Capacity setting determination procedure examp...

Page 32: ...rrors that may have separately arisen on the outdoor units or other indoor units Table 4 2 Impact of indoor unit error on outdoor units and on other indoor units Indoor unit error Impact on outdoor un...

Page 33: ...oor units All electrical work must be carried out by competent and suitably qualified certified and accredited professionals and in accordance with all applicable legislation all national local and ot...

Page 34: ...mode conflict error b During cooling operation If an indoor unit requests heating the outdoor units ignore the request and continue to run in cooling mode The indoor unit requesting heating displays t...

Page 35: ...etween indoor and outdoor units 3 3 3 Impact on other units Refer to 4 2 Impact on Other Units 3 3 4 Possible causes Communication wires between indoor and outdoor units not connected properly Interfe...

Page 36: ...ng P Q and E The normal resistance between P and Q is 120 between P and E is infinite between Q and E is infinite 2 The P Q E communication wires should be connected one unit after another in a daisy...

Page 37: ...ure E2 E3 E4 Temperature sensor connection on main PCB is loose1 Yes Ensure the sensor is connected properly No Temperature sensor has short circuited or failed2 Yes Replace the sensor No Replace indo...

Page 38: ...e main PCB cannot detect the fan or the difference between the actual fan speed and the target fan speed exceeds the limit 3 5 3 Impact on other units Refer to 4 2 Impact on Other Units 3 5 4 Possible...

Page 39: ...t main PCB is labeled in Figures 1 1 to 1 19 in 1 Main PCB Ports 2 Measure the voltage between the red and black wires and between the white and black wires at the fan connection on the indoor unit ma...

Page 40: ...isplay output or DEF FAN LED flashes twice per second 3 6 2 Description EEPROM mismatch 3 6 3 Impact on other units Refer to 4 2 Impact on Other Units 3 6 4 Possible causes Damaged main PCB 3 6 5 Proc...

Page 41: ...or ALARM LED flashes once per second 3 7 2 Description Outdoor unit error 3 7 3 Impact on other units Refer to 4 2 Impact on Other Units 3 7 4 Possible causes Outdoor unit error 3 7 5 Procedure Ed Re...

Page 42: ...roperly No The power supply to the drain pump is abnormal2 Yes Replace indoor main PCB No The drain pump motor has malfunctioned3 Yes Replace the drain pump Notes 1 The water level switch connection p...

Page 43: ...dress 3 9 5 Procedure FE Indoor unit has not been assigned an address Yes Assign an address to the unit1 Notes 1 Indoor unit addresses can be manually assigned using indoor unit remote wired controlle...

Page 44: ...motor connection on each type of indoor unit main PCB is labeled in Figures 1 1 to 1 19 in 1 Main PCB Ports 2 Measure the resistance between the red wire and each of the other four wires orange yello...

Page 45: ...4470 7 52 24 33 6 981 73 1 485 113 0 4348 6 49 32 34 6 684 74 1 435 114 0 4230 5 46 57 35 6 400 75 1 387 115 0 4116 4 44 00 36 6 131 76 1 341 116 0 4006 3 41 59 37 5 874 77 1 291 117 0 3899 2 39 82 38...

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