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49

Service Manual

Appendix:

Appendix 1: Reference Sheet of Celsius and Fahrenheit

Set temperature

Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1

.

8+32

Ambient temperature

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

32/33

32

0

55/56

55.4

13

79/80

78.8

26

34/35

33.8

1

57/58

57.2

14

81

80.6

27

36

35.6

2

59/60

59

15

82/83

82.4

28

37/38

37.4

3

61/62

60.8

16

84/85

84.2

29

39/40

39.2

4

63

62.6

17

86/87

86

30

41/42

41

5

64/65

64.4

18

88/89

87.8

31

43/44

42.8

6

66/67

66.2

19

90

89.6

32

45

44.6

7

68/69

68

20

91/92

91.4

33

46/47

46.4

8

70/71

69.8

21

93/94

93.2

34

48/49

48.2

9

72

71.6

22

95/96

95

35

50/51

50

10

73/74

73.4

23

97/98

96.8

36

52/53

51.8

11

75/76

75.2

24

99

98.6

37

54

53.6

12

77/78

77

25

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

 Fahrenheit 

display 

temperature

(℉)

Fahrenheit

(℉)

Celsius

(℃)

61

60.8

16

69/70

69.8

21

78/79

78.8

26

62/63

62.6

17

71/72

71.6

22

80/81

80.6

27

64/65

64.4

18

73/74

73.4

23

82/83

82.4

28

66/67

66.2

19

75/76

75.2

24

84/85

84.2

29

68

68

20

77

77

25

86

86

30

Appendix 2: Configuration of Connection Pipe

4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe
● After the length of connection pipe is prolonged for 10m at the basis of standard length, you should add 5ml of refrigerant oil for
each additional 5m of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):
● Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter

1. Standard length of connection pipe
● 5m, 7.5m, 8m.
2. Min. length of connection pipe is 3m.
3. Max. length of connection pipe and max. high difference.(See the specification

)

Additional refrigerant charging amount for R32

Diameter of connection pipe

Outdoor unit throttle

Liquid pipe(mm)

Gas pipe(mm)

Cooling only,

cooling and heating(g / m)

Cooling only

(g / m)

Cooling and heating

(g/m)

Ф6

Ф9.5 or Ф12

16

12

16

Ф6 or Ф9.5

Ф16 or Ф19

40

12

40

Ф12

Ф19 or Ф22.2

80

24

96

Ф16

Ф25.4 or Ф31.8

136

48

96

Ф19

/

200

200

200

Ф22.2

/

280

280

280

Summary of Contents for MV-H**BIF series

Page 1: ...MULTI VARIABLE SERIES WALL MOUNTED FOCUS MV HxxBIF SERVICE MANUAL EN...

Page 2: ...Original instructions IMPORTANT NOTE Read this manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference...

Page 3: ...intenance 19 7 Notes for Installation and Maintenance 19 8 Installation 24 8 1 Installation Dimension Diagram 24 8 2 Installation Parts checking 26 8 3 Selection of Installation Location 26 8 4 Requir...

Page 4: ...1 Service Manual 1 Summary Indoor Unit Part Technical Information Remote Controller YAC1FB9 WiFi...

Page 5: ...3 Service Manual 2 2 Noise Criteria Curve Tables...

Page 6: ...Unit mm Model W H D 09K 790 275 200 12K 845 289 209 18K 970 300 224 24K 1078 325 246 W 12K 09K D H 90 150 54 168 5 462 159 5 55 55 54 123 5 542 179 5 83 2 124 7 35 55 55 35 18K 104 685 181 140 190 38...

Page 7: ...ilter filter filter C2 C3 D3 D2 B3 B2 A2 A3 A1 A unit electronic expansion valve B1 B unit electronic expansion valve C1 C unit electronic expansion valve D1 D unit electronic expansion valve A2 A uni...

Page 8: ...l Color Symbol Symbol Color Symbol Name WH White GN Green CAP Jumper cap YE Yellow BN Brown COMP Compressor RD Red BU Blue Grounding wire YEGN Yellow Green BK Black VT Violet OG Orange Note Jumper cap...

Page 9: ...5220 78 57 5 9 5 1 63 2 5 3 63 63 6 1 8 0 83 2 1 02725 67 33 1 6 1 5 67 33 1 02725 7 5 7 0 7 7 1 8 5 2 3 60 1 5 725 35 17 5 8 7 2 5 3 803 3 1 1 7 3 9 325 725 2 7 50 1 8 8 1 20 287 1 11 7 1 1 0 1 0272...

Page 10: ...ace of fan 6 Interface of health function live wire 7 8 Auto button Interface of WIFI 9 Up down swing interface Interface of PG feedback 10 11 12 Needle stand for tube temperature sensor 13 Display in...

Page 11: ...ller that the unit will keep the original running status After putting through the power the air conditioner will give out a sound Operation indicator is ON red indicator the colour is different for d...

Page 12: ...the unit by pressing ON OFF button indoor fan will continue running for a few minutes at low speed In this period Hold fan speed button for 2s to stop indoor fan directly Having set X FAN function of...

Page 13: ...first entering will display according to the initial curve setting value of original factory 2 Adjust and button could change the corresponding setting temperature after adjusted press Turbo button fo...

Page 14: ...peed is not available The Quiet function is only available for some models When quiet function is selected Under cooling mode indoor fan operates at notch 4 speed 10 minutes later or when indoor ambie...

Page 15: ...13 Service Manual...

Page 16: ...14 Service Manual...

Page 17: ...alled register the account and add the device to achieve long distance control and LAN control of smart home appliances For more information please refer to Help in App 6 3 Ewpe Smart App Operation Ma...

Page 18: ...r each condition Ambient temperature is Tamb Tcompensation for heat pump unit and Tamb for cooling only unit 4 If there s I feel function Tcompensation is 0 Others are same as above 5 Fan mode Under t...

Page 19: ...overy If the complete unit is at ON status the unit will operate according to original operation mode 11 Ambient temperature display control mode 1 When user set the remote controller to display set t...

Page 20: ...Cooling drying Indoor fan stops operation Heating Cooling drying fan Indoor unit B Heating Indoor fan stops operation Fan Heating Indoor unit A Indoor fan stops operation Heating Note 1 Indoor unit A...

Page 21: ...y grounded The grounding wire can t be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding w...

Page 22: ...it at the place where there may be leaked corrosive gas or flammable gas If there leaked gas around the unit it may cause explosion and other accidents 7 Do not use extension cords for electrical conn...

Page 23: ...tinuous ventilation status should be kept during the operation process Check whether there is fire source or potential fire source in the maintenance area The naked flame is prohibited in the maintena...

Page 24: ...d gas valve are fully closed and power is disconnected before detaching the connection pipe If compressor starts running when stop valve is open and connection pipe is not yet connected air will be su...

Page 25: ...roprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 Torque wrench op...

Page 26: ...allation 8 1 Installation Dimension Diagram Drainage pipe At least 250cm At least 15cm At least 300cm Space to the Space to the ceiling Space to the obstruction At least 15cm At least 15cm Space to th...

Page 27: ...he bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installation Note this...

Page 28: ...special circumstances 7 Do not use the unit in the immediate surroundings of a laundry a bath a shower or a swimming pool 2 Grounding Requirement 1 The air conditioner is first class electric applian...

Page 29: ...rench moment of force Fig 5 Fig 6 Fig 7 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torq...

Page 30: ...drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to a certain degree separate the indoor power and the...

Page 31: ...It may cause insufficient cooling heating capacity 10 The dust and sundries caused during installation are removed It may cause malfunction or damaging the parts 11 The gas valve and liquid valve of c...

Page 32: ...nsor malfunction Hardware malfunction b7 blink 22 times IPM sensor circuit malfunction Hardware malfunction P7 blink 18 times Outdoor ambient sensor open or short circuit Hardware malfunction F3 blink...

Page 33: ...essor exhaust high temperature protection E4 blink 4 times Anti high temperature protection E8 blink 8 times AC over current protection E5 blink 5 times Over compressor phase current protection P5 bli...

Page 34: ...ess Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes Yes No No No No No No Is malfu...

Page 35: ...f PG motor control terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened Tighten the sc...

Page 36: ...is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model Appearance of t...

Page 37: ...The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 is displayed due...

Page 38: ...Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is abnormal Fan sp...

Page 39: ...ature is higher than 53 C If the airflow of indoor and outdoor unit is good If the indoor and outdoor fan are running normally Replace outdoor mainboard Connect normally Adjust the connection Replace...

Page 40: ...s eliminated Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Check motor and re install the motor to make it run normally Make compressor run normally Remove blockage in...

Page 41: ...to point 4 of maintenance method for details Malfunction of compressor Compressor can t operate Refer to point 5 of maintenance method for details 1 Air Conditioner Can t be Started Up 2 Poor Cooling...

Page 42: ...drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminating method air co...

Page 43: ...emove filter assy 2 Remove horizontal louver Front panel Front case Right filter Groove Left filter Open the front panel Push the left and right filters to make them break away from the groove on the...

Page 44: ...ifferent for different models Loosen the connection clasps between vertical louver and bottom case to remove vertical louver Loosen the connection clasps between front case sub assy and bottom case Li...

Page 45: ...s that are locking lead wire and rotate the electric box assy Twist off the screws that are locking wire clip Loosen the power cord and remove its wiring terminal Lift up the main board and take it of...

Page 46: ...l out the holder for some terminals at first holder is not available for some wiring terminal hold the connector and then pull the terminal Circlip Soft sheath Holder Connector Procedure Step Remove 3...

Page 47: ...e connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Remove the screw fixing step motor and then remove the st...

Page 48: ...76 75 2 24 84 85 84 2 29 68 68 20 77 77 25 86 86 30 Appendix 2 Configuration of Connection Pipe 4 The additional refrigerant oil and refrigerant charging required after prolonging connection pipe Afte...

Page 49: ...Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and prevent the bu...

Page 50: ...37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120...

Page 51: ...2 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 5...

Page 52: ...4 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 274 29 41 34 68 9 17 107 2 72 9 259 3 30 39 61 69 8 85 108 2 64 8 245 6 31 37 96...

Page 53: ...PARTS GUIDE MULTI VARIABLE SERIES WALL MOUNTED FOCUS MV HXXBIF...

Page 54: ...MV H07BIF...

Page 55: ...20874 1 AX 16 Connecting pipe clamp 2611216401 1 AB 17 Rubber Plug Water Tray 76712012 1 AC 18 Stepping Motor 1521212901 1 AF 19 Crank 73012005 1 AB 20 Electric Box Assy 100002002491 1 BB 21 Axile Bus...

Page 56: ...MV H09BIF...

Page 57: ...120874 1 AX 16 Connecting pipe clamp 2611216401 1 AB 17 Rubber Plug Water Tray 76712012 1 AC 18 Stepping Motor 1521212901 1 AF 19 Crank 73012005 1 AB 20 Electric Box Assy 100002062337 1 BB 21 Axile Bu...

Page 58: ...MV H12BIF...

Page 59: ...12146 1 AX 16 Connecting pipe clamp 2611216401 1 AB 17 Rubber Plug Water Tray 76712012 1 AC 18 Stepping Motor 1521210108 1 AG 19 Crank 73012005 1 AB 20 Electric Box Assy 100002062377 1 21 Axile Bush 1...

Page 60: ...MV H18BIF...

Page 61: ...AN 19 Fan Motor 1501214502 1 AX 20 Motor Press Plate 26112511 1 AE 21 Wall Mounting Frame 01362026 1 AK 22 Connecting pipe clamp 2611218801 1 AB 23 Crank 73012005 1 AB 24 Stepping Motor 1521240212 1 A...

Page 62: ...MV H24BIF...

Page 63: ...26112515 1 AE 18 Fan Motor 15012145 1 AZ 19 Connecting pipe clamp 26112514 1 AB 20 Drainage Hose 0523001405 1 AD 21 Stepping Motor 1521240212 1 AG 22 Crank 73012005 1 AB 23 Guide Louver 1051232001 1 A...

Page 64: ...NT MEDIUM This unit is containing fluorinated gases included in the Kyoto protocol The maintenance and the liquidation must be carried out by qualified personnel Type of refrigerant R32 The quantity o...

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