EFCO 525 Series - Manual (Page 37)

SECTION IX - GLAZING
[FIG. 53]
[FIG. 52]
[FIG. 51]
[FIG. 55]
[FIG. 54]
PAGE 35
4484
STD.
DOOR
HEADER
4483
C.O.C.
DOOR
HEADER
4486
DOOR
HEADER
STOP
4486
DOOR
HEADER
STOP
HN91
HN91
HN43
HN43
4485
HORIZ.
STOP
4485
HORIZ.
STOP
STEP 1) IDENTIFICATION OF SETTING BLOCKS FOR
HORIZONTALS
The setting block for standard frame horizontals is HN43. Two
setting blocks per D.L.O. are required and should be placed at 1/4
points or 1/8 points depending on dead load requirements. Door
headers require the use of a HN91 setting block. Two per D.L.O. are
also required for the HN91. Depending on dead load requirements,
the setting blocks should be placed at 1/4 or 1/8 points. See figures
56-58 on page 36 for calculating 1/4 and 1/8 point locations.
4479 HEAD (NO BLOCKING REQUIRED)
4491
HORIZ.
4475
SILL
525 IMPACT DPS 1/2004