EFCO 406X User Manual
SERIES 406X
Installation Instructions
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Series 406X Storefront Installation Instructions
Table of Contents
Section Page
1. General Notes and Guidelines………………………………………………………………….
2. Parts Identification Charts………………………………………………………………………
3. Fabrication and Assembly………………………………………………………………………
A. Screw Spline Fabrication………………………………………………………………..
B. Shear Block Fabrication…………………………………………………………………
C. Expansion Mullions………………………………………………………………………
D. Unit Assembly—Screw Spline………………………………………………………….
E. Unit Assembly—Shear Block…………………………………………………………...
4. Installation………………………………………………………………………………………….
A. Door Frame Installation………………………………………………………………….
B. Sill Flashing Installation…………………………………………………………………
C. Screw Spline and Shear Block System Installation………………………………...
5. Glazing……………………………………………………………………………………………...
A. Water Deflector Installation……………………………………………………………..
B. Pocket Dimensions and Glass Size Formulas……………………………………….
C. Glazing………………………………………………………………………………………
D. Glazing Adaptors..………………………………………………………………………..
3
4-6
7-8
9-11
12
13
14
15
17-18
19-20
21
21
22-24
25
For additional information see the following Supplements:
Dorma RTS88 Concealed Overhead Closers ……………………………………….Y013
Door, Door Glass and Hardware………………………………………………………Y015
Minimizing Condensation
Note: Please reference EFCO’s “Understanding Condensation” brochure which can be obtained through your EFCO representative.
Condensation will form on any surface when unfavorable conditions (regarding interior temperature, relative humidity and exterior
temperature) are present. When the formation of excessive condensation is a concern, it is highly recommended that a design professional is utilized
to perform an analysis of the shop drawings to recommend the best possible installation methods. Please contact your EFCO representative for
information on EFCO’s Thermal Analysis Services.
Many current installation practices lead to an increase in the possibility of the formation of condensation. Though not all inclusive, the list of
examples below illustrates conditions under which condensation is likely to occur:
1. Bridging the system thermal break with non-thermally broken metal flashing or lintels that are exposed to the exterior
2. System exposure to cold air cavities
3. Interior relative humidity levels not maintained at recommended levels, see EFCO’s “Understanding Condensation” brochure
4. Inadequate separation between system and surrounding condition at perimeter
5. Product combinations during the shop drawing stage that result in bridging thermal breaks of one or all products involved
EFCO 2014 Page 2
Series 406X Storefront Installation Instructions
Section 1. General Notes
HANDLING / STORING / PROTECTING ALUMINUM
The following guidelines are recommended to ensure early acceptance of your products and workmanship.
A. HANDLE CAREFULLY - Store with adequate separation between components so the material will not rub together.
Store the material off the ground. Protect materials against weather elements and other construction trades.
B. KEEP MATERIAL AWAY FROM WATER, MUD, AND SPRAY - Prevent cement, plaster, and other materials from
contacting with and damaging the finish. Do not allow moisture to be trapped between the finished surface and the
wrapping material.
C. PROTECT MATERIALS AFTER ERECTION - Wrap or erect screens of plastic sheeting over material. Cement,
plaster, terrazzo, and other alkaline materials are very harmful to the finish and are to be immediately removed with
soap and water. Under no circumstances should these materials be allowed to dry or permanent staining may
occur.
GENERAL GUIDELINES
The following practices are recommended for all installations
A. REVIEW CONTRACT DOCUMENTS – Become thoroughly familiar with the project. Check shop drawings,
installation instructions, architectural drawings and shipping lists. The shop drawings take precedence and include
specific details for the project. Shop drawings govern when conflicting information exists in the assembly and
installation instructions. Note any field verified notes on the shop drawings prior to installing. EFCO assembly and
installation instructions are general in nature and cover only some of the conditions.
B. INSTALL ALL FRAMING MATERIAL PLUMB, LEVEL, AND TRUE – Proper alignment and relationships to
benchmarks and column centerlines, as established by the architectural drawings and the general contractor, must
be maintained.
D. PERIMETER CONDITIONS - Verify that all job site conditions and accompanying substrates receiving the
installation are in accordance with the contract documents. If deviations occur, notification must be given in writing
to the general contractor and differences resolved before proceeding further with the installation in the area in
question.
E. ISOLATION OF ALUMINUM - Prevent all aluminum from coming in direct contact with masonry or dissimilar
materials by means of an appropriate primer. Typical slab anchors may be set directly onto concrete surfaces in a
block-out pocket at the edge of the slab. The block-out pocket is later filled in with grout thereby covering the slab
anchor. In such cases, a heavy coat of zinc chromate or bituminous paint must be pre-applied to the slab anchor.
F. SHIPMENT VERIFICATION - Verify contents of all material shipments received upon their arrival. Verify quantity
and correct finishes. Notify EFCO immediately of any discrepancies or damage that may have occurred.
G. SEALANT - All sealant must meet [ASTM C 920, CLASS 50]. For the purposes of these instructions, sealant is to
be defined as the following: SEALANT - A weather resistant, gunnable liquid filler which when cured provides a
resilient, flexible (± 50% movement capability min.) air and water seal between similar and dissimilar materials.
All sealant must be compatible with all surfaces on which adhesion is required, including other sealant surfaces. All
frame surfaces should be clean, dry, dust, and frost free. If a primer is required, it must be applied to clean surfaces.
All perimeter substrates shall be clean and properly treated to receive sealant. All sealants and primers must be
applied according to the sealant manufacturers instructions and recommendations. It is the responsibility of the
glazing contractor to submit a statement from the sealant manufacturer indicating that glass and glazing materials
have been tested for compatibility and adhesion with glazing sealants, and interpreting test results relative to
material performance, including recommendations for primers and substrate preparation required to obtain adhesion.
The chemical compatibility of all glazing materials and framing sealants with each other and with like materials used
in glass fabrication must be established.
EFCO 2014 Page 3
Series 406X Storefront Installation Instructions
Section 2. Parts Identification
Vertical Parts
Profile Part # Description
21U5
Standard Duty
Mullion
21V2
Sunshade
Mullion
5G51
Open Back
Shallow Cover O.G.
5G53
Open Back
Shallow Cover I.G.
Profile Part # Description
21V3
21U9
21V0
9229
Standard Open
Back Mullion/ Jamb
Male Expansion
Mullion
Female
Expansion
Mullion
Removable Stop for 1”
Glazing
Horizontal Parts
Profile Part # Description
21U3
Tubular Bead-Down
Horizontal
Profile Part # Description
E178
Frame Receptor
Closure Use w/ 1510
Weathering WA04
21U4 Sill / Head
21U7 Head / Sill
1548
Frame Receptor
Use w/ E178 Closure
and Weathering WA04
21V6
Tubular Bead-Up
Horizontal
Setting and Anti-Walk Blocks
Profile Part # Description
HN52
HEP1
1/2” Anti-Walk
Block
Setting Block Pkg.
@ Bead-Down
Intermediate
Horizontal
Profile Part # Description
Setting Block Pkg.
HN63
H157
@ Bead-Up
Intermediate
Horizontal
Setting Block Pkg.
@21U4 Sill
EFCO 2014 Page 4
Series 406X Storefront Installation Instructions
Section 2. Parts Identification
Sill and End-Dam Parts
Profile Part # Description
Profile Part # Description
21V1
HDW1
HCW6
WM01
High Performance Sill
Flashing
Water Deflector @
Intermediate Horizontal
Weep Baffle used
@ Sill
Bond Breaker Tape
4” X .062”
Used @ Sill Splices
LH Sill Flashing
KP30
End-Dam
Package Use w/ 21V1
Sill Flashing
RH Sill Flashing
KP31
End-Dam
Package Use w/ 21V1
Sill Flashing
Misc. Parts
Profile Part # Description
F707
21U6
LC55
3” Perimeter
Adaptor Clip
Stock Length
Perimeter
Adaptor Clip
Vinyl Pocket Filler @
Glass Pockets @
Perimeter
W166
Glazing Gasket for
Oversized Glass 1 1/16”
Infill @ 1” Glazing Pocket
EFCO 2014 Page 5
Profile Part # Description
F729
LC69
9351
21T8
3” Lightweight Vinyl
Perimeter
Adaptor Clip
Stock Length Lightweight
Vinyl Perimeter
Adaptor Clip
Snap-In Pocket
Filler for 1”
Glazing Pocket
Glazing Adaptor for 1/4”
Glass In 1” Glazing
Pocket
Series 406X Storefront Installation Instructions
Section 2. Parts Identification
Misc. Parts (cont.)
Profile Part # Description
W164
WQ02
Standard Glazing Gasket
for 1” Infill @ 1” Glazing
Pocket
Optional
Weather Seal @
Sub-Frames
W104
STB9
F727
Weather Seal Gasket for
Expansion Mullions
Horizontal to Shear Block
Screw #12-11 x 1/2”
PL-RH-SMS 18-8 “A”
3” Rod for
Horizontal Dead Load
Support @ Int. Verticals
Shear Blocks
Profile Part # Description
KP33
Shear Block Pkg.
for
Horizontals
Profile Part # Description
W165
Glazing Gasket for
Undersized Glass 3/4”
Infill @ 1” Glazing Pocket
WA04
SPL3
STB5
F726
Standard Weather Seal
@ Sub-Frames
Frame Spline Attachment
Screw #12-11 x 1 1/4”
SQ-PH-SMS 18-8 “A”
Shear Block
Attachment Screw
#12-11 x1-5/8” PL PH-
SMS 18-8 “A”
2” Rod for
Horizontal Dead Load
Support @ Perimeter
Verticals
Profile Part # Description
KP32 Shear Block Pkg.
for Sill
KO47
Shear Block Pkg. for
21U4
Shear Blocks & Drill Fixtures
Profile Part # Description
Screw Spline Drill Fixture
DJ51
for
Vertical
Fabrication
DJ53
Shear Block Drill Fixture
for
Vertical
Fabrication
EFCO 2014 Page 6
Profile Part # Description
DJ52
DJ48
DJ47
Shear Block Drill Fixture
Support Pin Drill Fixture
Shear Block Drill Fixture
for
Horizontals
Dead Load
for
Horizontal 21S2
Series 406X Storefront Installation Instructions
Section 3A. Screw Spline Fabrication
The screw spline system is a fabrication and erection method that permits the preassembly of single units in the
shop or at the job site. These units are then erected by mating the male mullion of one unit to its counterpart female
mullion of the adjoining unit.
Notes:
1. When an entrance is required, shear block joinery must be used to attach the side lite horizontals.
2. Due to the screw tensions required for correct installation, it will be necessary to ‘wax’ the frame assembly screws to
prevent galling and breaking.
Fabrication Steps:
1. Measure the opening to determine the cut lengths of the frame components.
Allow a minimum 1/4” clearance at head and jambs and 3/4” clearance at the sill for shims and caulking.
Allow extra clearances, if necessary, to accommodate building tolerances and building movement.
2. Cut the vertical to frame size.
Verticals must run through.
If the opening has an entrance, see the appropriate frame and door fabrication installation sheets.
Door jambs run to the floor and are cut longer than other verticals.
3. Drill holes for assembly screws on vertical members per one of the following methods.
Drill jigs are available. (See Page #6)
Layout holes per figures #1,2, or 3 and drill.
Use punch press with appropriate die set.
4. Cut horizontal members to day lite openings. (Between vertical members) Also cut the horizontal glass stops to day
lite opening minus 1/32”. (DLO - 1/32”)
Drilling Templates
Outside Glazed
Bead-Down
Screw Spline
Verticals
Left Hand Shown,
Right Hand
Opposite
Use Drill Jig #DJ51
Use a .230” dia.
No. 1 drill bit at
darkened holes
only.
Fig. #1
EFCO 2014 Page 7
Series 406X Storefront Installation Instructions
Section 3A. Screw Spline Fabrication (cont.)
Outside Glazed
Bead-Up
Screw Spline
Verticals
Left Hand
Shown, Right
Hand Opposite
Use Drill Jig
#DJ51
Use a .230” dia.
No. 1 drill bit at
darkened holes
only.
Inside Glazed
Screw Spline
Verticals
Left Hand Shown,
Right Hand Op-
posite
Use Drill Jig
#DJ51
Use a .230” dia.
No. 1 drill bit at
darkened holes
only.
Fig. #2
Fig. #3
EFCO 2014 Page 8
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