NuAire MRXBOX95B-450 WC Installation And Maintenance Manual Download Page 3

3.0 Performance

Sound Power Levels dB re 1pW
63

125

250

500

1K

2K

4K

8K

LwA

Extract

Full speed Open inlet 

58 

56 

57 

63 

57 

51 

46 

45

63

90% Open Inlet 

58 

55 

56 

62 

55 

49 

44 

43 

61

80% Open Inlet 

57 

55 

55 

60 

53

47 

42 

41

59

65% Open Inlet 

56 

53 

52 

57 

47 

41 

36 

35 

55

45% Open Inlet 

54 

50 

49 

52 

40 

34 

29 

28 

50

30% Open Inlet 

51 

47 

43 

44 

29 

23 

18 

17 

43

Intake

Full Speed Open Inlet 

56 

54 

59 

67 

55 

48 

37 

34 

64

90% Open Inlet 

56 

53 

58 

66 

53 

46 

35 

32 

63

80% Open Inlet 

55 

53 

57 

64 

51 

44 

33 

30 

61

65% Open Inlet 

54 

51 

54 

61 

45 

38 

27 

24 

58

45% Open Inlet 

52 

48 

51 

56 

38 

31 

20 

17 

53

30% Open Inlet 

49 

45 

45 

48 

27 

20 

16 

16 

45

Discharge

Full Speed Open Outlet  67 

63 

65 

75 

68 

63 

56 

53

74

90% Open Outlet 

67 

62 

64 

74 

66 

61 

54 

51 

73

80% Open Outlet 

66 

62 

63 

72 

64 

59 

52 

49 

71

65% Open Outlet 

65 

60 

60 

69 

58 

53 

46 

43 

67

45% Open Outlet 

63 

57 

57 

64 

51 

46 

39 

36 

62

30% Open Outlet 

60 

54 

51 

56 

40 

35 

28 

25 

54

Supply

Full Speed Open Outlet 59

62 

65 

71 

65 

63 

57 

53 

71

90% Open Outlet 

59 

61 

64 

70 

63

61 

55 

51 

70

80% Open Outlet 

58 

61 

63 

68 

61 

59 

53 

49 

68

65% Open Outlet 

57 

59 

60 

65 

55 

53 

47 

43 

64

45% Open Outlet 

55 

56 

57 

60 

48 

46 

40 

36 

59

30% Open Outlet 

52 

53 

51 

52 

37 

35 

29 

25 

51

Breakout Sound

Pressure Level

dBA@ 3m

LwA

Breakout

Full Speed Breakout

61 

61 

60 

63 

53 

48 

40 

35 

40

61

90% Breakout 

61 

60 

59 

62 

51 

46 

38 

33 

39

60

80% Breakout 

60 

60 

58 

60 

49 

44 

36 

31 

37

58

65% Breakout 

59 

58 

55 

57 

43 

38 

30 

25 

34

55

45% Breakout 

57 

55 

52 

52 

36 

31 

23 

18 

29

50

30% Breakout 

54 

52 

46 

44 

25 

20 

16 

16 

22

43

3.1 Sound and Breakout Levels

3

27. 11. 17. Leaflet number 671617

Installation and Maintenance

MRXBOX95B-450 WC and MRXBOX95B-450

100 

200 

300 

400 

500 

600 

700 

800

700

600

500

400

300

200

100

0

Air volume flow rate (m

3

/hr)

Fan Static Pr

essur

e

100% Duty 

90% Duty 

80% Duty 

65% Duty 

45% Duty 

30% Duty 

Summary of Contents for MRXBOX95B-450 WC

Page 1: ...g to all statutory governing regulations All mains wiring must be in accordance with the current I E E Regulations or the appropriate standards Ensure that the mains supply Voltage Frequency and Phase complies with the rating label Please note a clear working space is required around the installed unit to allow the cover to be removed and provide sufficient access for maintenance such as filter ch...

Page 2: ...tested 2 5 Handing The unit may be handed to switch the supply and extract spigot positions this can be done by following the steps below and are shown in fig 6 Note This process should only be carried out by a competent and qualified person Step 1 Remove the front cover and inner panel followed by the rear panel to gain access to the inside of the unit Step 2 Partially pull out the metal tray to ...

Page 3: ...0 69 58 53 46 43 67 45 Open Outlet 63 57 57 64 51 46 39 36 62 30 Open Outlet 60 54 51 56 40 35 28 25 54 Supply Full Speed Open Outlet 59 62 65 71 65 63 57 53 71 90 Open Outlet 59 61 64 70 63 61 55 51 70 80 Open Outlet 58 61 63 68 61 59 53 49 68 65 Open Outlet 57 59 60 65 55 53 47 43 64 45 Open Outlet 55 56 57 60 48 46 40 36 59 30 Open Outlet 52 53 51 52 37 35 29 25 51 Breakout Sound Pressure Level...

Page 4: ...ensions for unit wall mounting bracket position on 450WC 450 units 200 176 534 67 492 CRS 67 40 0 CRS 5 Fixing Points Bracket to be fitted to the wall 40 0 CRS 86 0 Front view Side view 86 0 15 0 23 0 Flush mounting face to wall or back box View from back 86 0 Front view Side view 86 0 11 0 Figure 8a Dimensions 450WC unit switch Figure 9a Dimensions MRXBOX95 3SWITCH 4 x Spigots 180mm Internal Diam...

Page 5: ...connections Humidistat connections Fuse 5A MAINS 230V 50Hz N L MAINS 230V 50Hz N L 2 Pole Isolator 3 Position Switch Ancillary code MRXBOX95 3SWITCH Blue Brown Supply cord from unit Green yellow Blue Brown Black Supply cord from unit Grey Green yellow L 1 2 Fuse 5A MAINS 230V 50Hz N L 3 Pole Isolator 3 Position Switch Ancillary code MRXBOX95 3SWITCH Green yellow Blue Brown Black Supply cord from u...

Page 6: ... to a wall or back box remove the front fascia by inserting a terminal screwdriver into the two openings along the bottom edge and prize open gently The fixing points on the back plate can then be accessed once the switch has been secured the front fascia can then be re fitted Note The wireless switch will typically operate up to a distance of 30m inside a building however this is dependent on the...

Page 7: ...check for damage and security of components The heat exchanger should be fitted in the same orientation as originally assembled e g front label facing removable cover and top label nearest PCB Figure 15 Removing the two filter covers on the front panel of the unit Figure 16 The filters can be removed by pulling on the black tab on the visible end of the filters Telephone 02920 858 400 7 27 11 17 L...

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