CEVH DAMPER DRAWING, DIMENSIONS AND FREE AREA
CEVH/CEVH-1P-DECO Smoke evacuation dampers
Installation instructions
DIMENSIONS AND OPENINGS
Product labelling
Nominal length
Ln [mm]
External length
Lht [mm]
Nominal height
Hn [mm]
External height
Hht [mm]
400
429
400
429
450
479
450
479
500
529
500
529
550
579
550
579
600
629
600
629
650
679
650
679
700
729
700
729
750
779
750
779
800
829
800
829
850
879
850
879
900
929
900
929
950
979
950
979
1000
1029
1000
1029
1050
1079
1050
1079
1100
1129
1100
1129
Calculation of the free area (dm
2
)
Lht = Ln +29
Hht = Hn + 29
Free area formula (dm
2
)
Lpa = Lht - 239
Hpa = Hht - 125
(Hpa (mm) x Lpa (mm) / 10000)
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