EFCO Special Purpose Windows Installation - Manual (Page 34)

EFCO CORPORATION 3/5/2014 PART NO. YW40 Page 1 of 6
Window Installation Instructions - Panning Installation Section -
General Installation Instructions for Panning Frames
Typical panning material is shipped factory cut to size and fabricated to fit the exact window dimension.
The perimeter flange of the panning is to be field trimmed to fit the masonry opening.
Window, panning frames, and accessories will have the same mark designation.
1. Field assemble the panning frame with supplied pan head screws.
2. Determine the correct panning placement in the opening. EFCO Corporation’s combination of
panning, window, and trim is provided to entirely cover the old tear out. Refer to the shop drawing
details for correct panning placement in order to allow for correct coverage.
3. Determine the exact panning sill face dimension by adding together the sill drop plus the “x”
dimension (see page 3 of this Section) and rip down the flange of the sill panning.
4. Determine the required panning frame height, and cut any excess (if required) from the panning
head. If additional coverage is required, panning extenders can be furnished.
5. Determine the required panning width and remove excess equally from both panning jambs (if
required). If additional coverage is required, panning extenders can be furnished.
6. Use silicone sealant to cover all screw heads and all panning frame joints on the non-exposed side
of the panning.
7. Attach KC72 corner clips at the intersection of all joints. These stainless steel clips keep the
panning jambs aligned with the head and sill. The perimeter caulking should then cover the clip.
Completely read the General Installation Instructions and all other sections which pertain
to your project before starting work. These recommendations are for general erection
procedures only. For actual job conditions, see the details on the shop drawings. For
perimeter anchor types and spacing, refer to the approved shop drawings or consult the
project design professional.
KC72 corner clips attached
by erector after panning
frame assembly.
Seal back side of joints
and screw heads, then
clean off all excess sealant
from the exterior surface.
Panning head
Panning sill
Long side goes
behind panning