PUH Roof Units
 

  Features
 
  • The range covers sizes 355 - 630mm diameter horizontal roof units.

  Construction

  • The PUH range of roof units are precision manufactured from glass fibre re-enforced polyester resin giving it a strong yet lightweight construction. The cowls have been aerodynamically designed to produce the minimum possible resistance to airflow whilst offering full protection against the weather. Steel components have a corrosion resistant finish.

Impellers

  • The impellers are made from a robust injection moulded composite material with an unique mixed flow design. The impellers offer superior efficiency and very low noise levels.

  Motors
  • The following standard specifications apply:

          - Totally enclosed IP55 or ECM motors as required.
          - 220-240V-1 PH-50Hz or 380-415V-3PH-50Hz
          - Protection on motor class can be specified. Standard motors with typically have IP55 class protection.

Soaker sheets
 
  • Soaker sheets are available in most modern roof profiles complete with integral up stands.

Selection procedure
 
  • The units are selected of the standard AMS CUD curves allowing a K factor of 1.2.

  Dimensions

  
 
 PUH A B C D E
315 690 395 660 80 400
350 690 395 660 80 400
400 760 445 760 80 500
450 760 445 760 80 500
500 900 585 910 100 650
560 900 585 910 100 650
630 1020 670 1160 100 790
  

Technical Data & Noise Levels

 
 PUH rev/sec Max Temp dB(A) @3m 3ph kW Amps
315 23 60 Inlet 46 0.37 1.07
Outlet 50
350 23 60 Inlet 42 0.37 1.07
Outlet 46
400 22 60 Inlet 49 0.75 2.15
Outlet 52
450 23 60 Inlet 51  1.1 2.74
Outlet 55
500 21 60 Inlet 56 1.5 3.66
Outlet 60
560 22 45 Inlet 56 3.0 6.4
Outlet 63
630 24 45 Inlet 61 5.5 10.5
Outlet 66
 
  

In-Duct Sound Power Levels, dB
 63 125 250 500  1K   2K   4K   8K
74 70 64 62 60 60 59 53
74 71 64 65 64 66 61 56
65 68 61 58 54 56 55 49
66 67 61 60 62 60 58 52
69 73 66 66 60 63 62 56
71 71 66 67 68 67 64 58
73 75 70 67 64 65 63 58
78 74 72 71 71 68 65 59
77 81 76 71 70 69 66 61
85 81 82 73 76 72 67 60
79 81 77 72 71 71 69 64
82 84 80 79 77 77 75 69
71 82 79 78 76 76 72 68
74 85 82 85 81 81 77 69
 

  PDF