EFCO 403 Series Roto Vent for Storefront - Manual (Page 10)

after the unit is installed.
STEP 4) Pre-drill the meeting rail with a #18 drill (.170 dia.) 2" from the ends and
16" on center. The TEK screws (STK0) will be used to attach the tube retainer
(STK0)
CONT.
SECTION V -
ATTACHMENT
PART PREPARATION &
.170 DIA. THRU DRILL
ON CENTERS
MEETING RAIL
(9952)
EXTERIOR SIDE
2" FROM END & 16"
(9953)
RETAINER
#8x1" P.H.TEK
PAGE 9