1. Page 1 MDS Installation

2. Page 2 Contents  Introduction  Outdoor Unit Installation  Indoor Unit Installation  Refrigerant Pipe Work  Gas Charge  Wiring  Summary

3. Page 3 Introduction

4. Page 4 Bad installation – System will not operate as per design  Waste of Money  Waste of Time  Bad Image 3 Major Categories  Unit Installation  Piping Installation  Wiring Installation INSTALLATION

5. Page 5 Outdoor Unit Installation

6. Page 6 Outdoor Unit Installation  Sufficient area around the unit. No barrier for supply air and discharge air.  Avoid discharge air return to the unit (Hot Air short- circuiting)  Strong foundation for the unit Outdoor Unit Installation

7. Page 7 Handling Outdoor Unit Correct Outdoor Unit Installation

8. Page 8 Handling Outdoor Unit Wrong Outdoor Unit Installation

9. Page 9 CorrectWrong Outdoor Unit Installation

10. Page 10 Outdoor Unit Installation

11. Page 11 Wall / Barrier higher than unit Side View Wall / Barrier lower than unit Outdoor Unit Installation Outdoor Unit Spacing (Single Unit)

12. Page 12 Top View (Barrier higher than unit) Outdoor Unit Spacing (Single Unit) Outdoor Unit Installation

13. Page 13 Top View (Barrier lower than unit) Outdoor Unit Installation Outdoor Unit Spacing (Single Unit)

14. Page 14 Outdoor Unit Spacing (More than 1 unit) Top View (Wall / Barrier restriction same as 1 outdoor unit) Outdoor Unit Installation

15. Page 15 Outdoor Unit Spacing (More than 1 unit) Top View (Wall / Barrier restriction same as 1 outdoor unit) Outdoor Unit Installation

16. Page 16 Top View (Wall / Barrier restriction same as 1 outdoor unit) Outdoor Unit Spacing (More than 1 unit) Outdoor Unit Installation

17. Page 17 Outdoor Unit Installation Outdoor Unit Foundation  Floor location strength - Able to withstand the unit weight and vibration

18. Page 18 Outdoor Unit Installation Outdoor Unit Foundation  Layout for drainage, piping & cables - Different level, avoid blocking Gas and liquid piping connection Balance piping connection

19. Page 19 Outdoor Unit Installation Outdoor Unit Foundation  Screw bolt required to further tighten the unit - Avoid the unit from falling due to earthquake

20. Page 20 Indoor Unit Installation

21. Page 21 Indoor Unit Installation Drainage Pipe Work  Adjust the downward gradient Gradient of 1:100 or more

22. Page 22 Indoor Unit Installation Drainage Pipe Work  Group drain pipe ≥ 100mm Vent opening Clamp of drain pipe Gradient ≥ 1/100 Converged drain pipe

23. Page 23 Indoor Unit Installation EXV Box Installation  MUST install vertically upward

24. Page 24 Unit and EXV Selection - 2006

25. Page 25 Unit and EXV Selection - 2006

26. Page 26 Unit and EXV Selection - New Marketing Bulletin: MBA001-0801

27. Page 27 Unit and EXV Selection - New Marketing Bulletin: MBA001-0801

28. Page 28 Indoor Unit Installation EXV Box Installation  3 types of mounting methods 1 2 3

29. Page 29 Indoor Unit Installation EXV Box Installation

30. Page 30 Indoor Unit Installation EXV Box Installation

31. Page 31 Refrigeration Pipe Work

32. Page 32 Refrigerant Pipe Work Piping Installation  Ensure piping is dry, clean and no air leakage

33. Page 33 Refrigerant Pipe Work Piping Installation  Nitrogen gas replacement Nitrogen gas pressure: about 0.02 MPa (0.2 kg/cm 2, 2.8 psi)

34. Page 34 Refrigerant Pipe Work Piping Installation  Covering of refrigerant pipes - Prevent water, dirt or dust from getting into the pipes Pinching Taping Method

35. Page 35 Refrigerant Pipe Work Piping Installation  Covering of refrigerant pipes

36. Page 36 Refrigerant Pipe Work Piping Installation  Covering of refrigerant pipes

37. Page 37 Refrigerant Pipe Work Piping Installation  Connection

38. Page 38 Refrigerant Pipe Work Piping Installation  Refnet & distributors joints to be install horizontally In ±15°

39. Page 39 Refrigerant Pipe Work Piping Installation  Refnet & distributors joints to be install horizontally

40. Page 40 Connection Type of Refnet Joint/Distributors Refnet Joint Refrigerant Pipe Work

41. Page 41 Connection Type of Refnet Joint/Distributor Distributor Refrigerant Pipe Work

42. Page 42 Connection Type of Refnet Joint/Distributors Refnet Joint Distributor Refrigerant Pipe Work

43. Page 43 Connection Type of Refnet Joint/Distributors Refnet Joint Distributor Refrigerant Pipe Work

44. Page 44 Refrigerant Pipe Work Thermal Insulation Work  Insulation material must be able to withstand the pipe heat - Heat pump unit – heat resistance polyethylene foamed (> 120°C) - Cooling only unit – polyethylene (> 100°C)  Insulation method  Thickness of insulation

45. Page 45 Refrigerant Pipe Work Thermal Insulation Work  Both liquid and gas pipe MUST be insulated Gas pipe Liquid pipe Insulation Control wire Finishing tape

46. Page 46 Refrigerant Pipe Work Thermal Insulation Work Wrong Method Correct Method

47. Page 47 Refrigerant Pipe Work Thermal Insulation Work  Insulation thickness Notes: Hot and wet environment, increase then thickness of the insulation

48. Page 48 Refrigerant Pipe Work Thermal Insulation Work  Connection pipes should be properly fix

49. Page 49 Gas Charge

50. Page 50 Gas Charge Additional Refrigerant Charge  The amount of additional charge must be determined by the equation with the total length of liquid pipe.  After calculation, the amount of additional charge should be recorded to the reverse side of the of the outdoor unit control box cover.  Put in liquid state refrigerant from the liquid port to connect the cylinder by using weight scale.

51. Page 51 Gas Charge Additional Refrigerant Charge (R22)  The equation of additional refrigerant charge Additional Charge Amount = (Ø15.88 liquid pipe length x 180g/m) + (Ø12.7 liquid pipe length x 120g/m) + (Ø9.52 liquid pipe length x 80g/m) + (Ø6.35 liquid pipe length x 50g/m)

52. Page 52 Gas Charge Additional Refrigerant Charge (R410A)  The equation of additional refrigerant charge Additional Charge Amount = (Ø15.88 liquid pipe length x 180g/m) + (Ø12.7 liquid pipe length x 120g/m) + (Ø9.52 liquid pipe length x 80g/m) + (Ø6.35 liquid pipe length x 50g/m)

53. Page 53 Wiring

54. Page 54 MC301 controller Credit Card controller ID PCB Connection between ID PCB & MC301 Wiring Standard length 10 meter

55. Page 55 RECEIVER Wiring

56. Page 56 Wiring Wiring Design  All wires and accessories must be tested beforehand  All electric work must be done by licensed electrician  Wiring connection should be referred to the installation manual  Breaker and fuse should be set on each outdoor unit

57. Page 57Wiring Communication Wires  Twisted pair wired with shielding (20AWG) - Shield wire to be earth on 1 end of the network - Connected serially to the adjacent unit (Daisy Chain Connection) - Same polarity between units (A-A, B-B) Wire Limitation (Units in meter) PC to Gateway – 2m (RS232) 1 st Outdoor to Last Outdoor < 1000m (RS485) Outdoor to Last Indoor < 1000m (RS485)

58. Page 58 Wiring Communication Wires

59. Page 59Wiring Communication Wires  System wiring Jumper JP7 need to be shorted for the final indoor unit

60. Page 60Wiring Communication Wires  System wiring A in = Terminal 30 B in = Terminal 31 A PC = Terminal 32 B PC = Terminal 33

61. Page 61 ID PCB OD PCB MDS080~240 Ain Bin Apc Bpc BABA Wiring

62. Page 62Wiring Communication Wires  System wiring Jumper JP7 need to be shorted for the final indoor unit

63. Page 63 Indoor Units MDS260/280/300/320 MDS130/150/160BRSMDS120/150/160BRM + Ain Bin Apc Bpc Wiring

64. Page 64Wiring Central Controller (For R410A MDS Indoor only) PCB: MC200-C & MC201-C

65. Page 65Wiring Central Wired Controller Group control for 32 unit. Group Control setting: On/Off, Temperature, Operating mode, Fan speed, sleep mode and timer On/Off Single unit operation setting: On/Off, Temperature, Operating Mode, Fan speed and sleep mode. Timer setting: timer on/off all units. Display Circularly: display each unit temperature, mode, fan speed, running and fault code one by one. Real time clock: Required battery to maintain the time if no power supply.

66. Page 66Wiring Central Wired Controller 220-240V / 1P / 50Hz MC200-C / MC201-C MC200-C – M5WMD20/25G MC201-C - Others

67. Page 67Wiring Central Wired Controller Dimension Installation

68. Page 68 Gateway Computer Indoor units Outdoor units RS485 RS232 1.Display ID status & error history Display ID status & error historyDisplay ID status & error history 2.Monitor & Control Monitor & ControlMonitor & Control 3.Daily, Weekly & Holiday timer setting Daily, Weekly & Holiday timer settingDaily, Weekly & Holiday timer setting 1.Display ID status & error history Display ID status & error historyDisplay ID status & error history 2.Monitor & Control Monitor & ControlMonitor & Control 3.Daily, Weekly & Holiday timer setting Daily, Weekly & Holiday timer settingDaily, Weekly & Holiday timer setting Ain Bin Apc Bpc Wiring

69. Page 69Wiring Communication Wires  Necessary distance from communication wires to the power supply cable Problem may happen due the electromagnetic interference if the communication line is too close with the power cable.

70. Page 70 Summary

71. Page 71 Summary  3 basic rules of refrigerant pipe work : - Dry, Clean and air tight  Both liquid and gas pipe should be insulate separately  The communication wires must be in the same polarity  DO NOT wrap the power cable and communication wire together

72. Page 72 The End