Pella Impervia Sliding Patio Door With Fins 803V0102 - Manual (Page 9)

VERTICAL MULLIONS:
A. Lay the units on a smooth clean surface,
exterior side up to perform these steps. &
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B. Apply two strips of foam tape down
the fixed door frame sides. Place one
strip on the interior rib and one strip on
the exterior rib.
C. Position and align the sliding door
with the fixed door.
D. Place a foam plug at the top and
bottom between the exterior rib and the
joining mullion groove.
E. Start the I bar joining connector
from one end and drive it to the full
height of the doors.
Note: A rubber mallet may be used
to drive the I bar joining connector
into position.
F. Apply a bead of sealant, covering the mullion joint from
the center of the I bar joining connector to the exterior.
G. Apply a reinforcement plate at the
head using the square notches to align
the plate to the head frame screws in the
1-1/2" wide flat groove to the interior side
of the frame.
H. Secure the plate with #8 x 1" pan head
sheet metal screws, using three screws
per door head.
I. Align the reinforcement plate at the
sill using the center 3/8" diameter
holes to align the plate to the sill frame
screws in the 1-1/2" wide flat groove.
J. Secure the plate with #8 x 1" pan
head sheet metal screws, using
three screws per door sill.
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