Ykk ap YCW 750 OGP User manual

YCW 750 OGP Outside Glazed Curtain Wall System
Installation Manual
©2021 YKK AP America Inc.

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-i
TABLE OF CONTENTS
Installation Notes ................................................................................. Page ii
PARTS DESCRIPTION
YCW 750 OGP Framing Members...................................................... Pages 1 & 2
YCW 750 OGP Accessories................................................................ Pages 2 to 5
FRAME FABRICATION
Anchoring Methods/Framing Types..................................................... Pages 6 & 7
Fabricate Vertical Mullions .................................................................. Pages 8 & 9
Using Steel Reinforcing ....................................................................... Page 10
Attach Shear Blocks/Clips for Horizontals........................................... Page 11
Attach “J” Anchors ............................................................................... Page 12
Fabricate Horizontal Members ............................................................ Pages 13 to 15
Fabricate Pressure Plates ................................................................... Pages 16 & 17
Fabricate Face Covers ........................................................................ Page 17
FRAME INSTALLATION
Typical Vertical Splice ......................................................................... Pages 18 & 19
Install Continuous Perimeter Anchor................................................... Page 20
Jamb/Vertical Installation with Perimeter Anchors .............................. Page 21
Jamb Installation with Jamb Anchors .................................................. Page 22
Jamb/Vertical Installation with Mullion End Anchors........................... Page 23
Vertical Installation at Door Jamb End Anchors.................................. Page 24
Install Wind Load/Dead Load Anchors ................................................ Pages 25 to 27
Attach Horizontal Members ................................................................. Pages 28 to 31
Install Door Subframes ........................................................................ Page 32
Apply Perimeter Sealant...................................................................... Pages 33 to 34
(Optional) Install PVC Perimeter Filler ................................................ Page 35
Add Thermal Isolator ........................................................................... Page 36
Install Joint Plugs................................................................................. Page 37
GLAZING
Install Glazing Adaptors....................................................................... Page 38
Install Interior Glazing Gaskets ........................................................... Page 39
Install Setting & Side Blocks .............................................................. Page 40
Install Exterior Glazing Gaskets .......................................................... Page 41
Install Glass ........................................................................................ Page 41
Install Vertical Pressure Plates and Vertical Face Covers.................. Pages 42 & 43
Install Horizontal Pressure Plates ....................................................... Page 44
Install Horizontal Face Covers ............................................................ Page 45

YCW 750 OGP Curtain Wall System
Page-ii 04-4031-15 | Effective Date: March 26, 2021
Installation Notes
1. Do not drop, roll or drag boxes of aluminum framing. Move and stack boxes with proper support to
prevent distortion. If fork lifts are used, be especially careful about striking the boxes when lifting
or moving.
2. Store in a dry, out of the way area. If rain exposure, condensation or any water contact is likely, then
all packaging material should be removed. Wet packaging materials will discolor and may stain alumi-
num finishes and paints.
3. All materials should be checked for quality and quantity upon receipt, YKK AP must be notified
immediately of any discrepancies in shipment. Check to make sure that you have the required shims,
sealants, supplies and tools necessary for the installation.
4. Carefully check the openings and surrounding conditions that will receive your material. Remember,
if the construction is not per the construction documents, it is your responsibility to notify the general
contractor in writing. Any discrepancies must be brought to the general contractor’s
attention before you proceed with the installation.
5. These installation instructions are of a general nature and may not cover every condition you will
encounter. The shop drawings prepared should be specifically for the project.
6. Any material substitutions must be of equal or greater quality.
7. Make certain that material samples have been sent for compatibility and adhesion testing for all
manufacturer’s sealants involved. Make certain sealants have been installed in strict accordance with
the sealant manufacturer’s recommendations and specifications.
8. Remember to isolate, in an approved manner, all aluminum from uncured masonry or other incom-
patible materials.
9. System-to-structure fasteners are not supplied by YKK AP. Fasteners called out on shop drawings
are to indicate minimum sizes for design loading.
10. If any questions arise concerning YKK AP products or their installation, contact YKK AP for
clarification before proceeding.
11. YKK AP storefront and/or curtain wall framing is typically completed before drywall, flooring and
other products which may still be in process. Take the extra time to wrap and protect the work pro-
duced.
12. Cutting tolerances are plus zero, minus one thirty second unless otherwise noted.
13. Check our website, www.ykkap.com, for the latest installation manual update prior to
commencing work.

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-1
FRAMING MEMBERS
Vertical / Horizontal
2-1/2” x 5-1/4”
For 1” Glazing
E9-1215
Vertical / Horizontal
2-1/2” x 5-1/4”
For 1” Glazing
E9-1225
* Splay mullions and other face covers are available, contact YKK AP.
Vertical / Horizontal
2-1/2” x 3-3/4”
For 1” Glazing
E9-1235
Vertical / Horizontal
Heavy Duty
2-1/2” x 3-3/4”
For 1” Glazing
E9-3537
Vertical / Horizontal
2-1/2” x 6-3/4”
For 1” Glazing
E9-1242
Jamb
Open Back
2-1/2” x 5-1/4”
For 1” Glazing
E9-3580
Jamb
Open Back
2-1/2” x 3-3/4”
For 1” Glazing
E9-3584
Head / Sill
Open Back
2-1/2” x 5-1/4”
For 1” Glazing
E9-3579
Head / Sill
Open Back
2-1/2” x 3-3/4”
For 1” Glazing
E9-3583
Optional Head
For Incidental Water
2-1/2” x 5-1/4”
For 1” Glazing
E9-3582
Optional Head
For Incidental Water
2-1/2” x 3-3/4”
For 1” Glazing
E9-3586
Horizontal
Open Back
2-1/2” x 5-1/4”
For 1” Glazing
E9-3581
Horizontal
Open Back
2-1/2” x 3-3/4”
For 1” Glazing
E9-3585
Horizontal Flush Filler
For 5-1/4” Depth
Open Back Members
E9-3162
Horizontal Flush Filler
For 3-3/4” Depth
Open Back Members
E9-3595
Polyamide Pressure
Plate
For 1” Glazing
AS-3617
Face Cover
2-1/2” x 2-3/8” E9-1219
Face Cover
2-1/2 x 3/4” E9-1206
Bull Nose Face Cover
2-1/2” x 2” E9-1293
Horizontal Face Cover
11/16” x 2-1/2” E9-1207
Glazing Adaptor
For 1/2” Glazing E9-1232
Flush Pocket Filler
For 1” glazing E9-1253
Glazing Adaptor
For 1/4” glazing E9-1220
E3-3665
Optional PVC
Perimeter Adaptor
For 1” Glazing

YCW 750 OGP Curtain Wall System
Page-2 04-4031-15 | Effective Date: March 26, 2021
FRAMING MEMBERS
* Splay mullions and other face covers are available, contact YKK AP.
** For use on vertical systems (perpendicular to ground). Use aluminum pressure plate for other applications after review
by YKK AP’s engineering department.
ACCESSORIES
Perimeter Channel
For 1” Glazing E9-1231
Standard Shear Block
For 3-3/4” Back Depth
3.125” Long
E1-3503
Single Acting
Transom Bar
Elastomer Weathering
E2-0051 Included
AS-0402
Standard Shear Block
For 5-1/4” Back Depth
4.375” Long
E1-3504
Standard Shear Block
For 6-3/4” Back Depth
6.000” Long
E1-3506
“J” Anchor
For 3-3/4” Back Depth
3.125” Long
E1-3501
“J” Anchor
For 5-1/4” Back Depth
4.375” Long
E1-3502
“J” Anchor
For 6-3/4” Back Depth
6.000” Long
E1-3505
Standard Door Jamb
For 1” Glazing
Use with AS-0417
E9-3513
Shear Block (For E-Slot)
For 3-3/4” Back Depth
3.125” Long
E1-1206
Shear Block (For E-Slot)
For 5-1/4” Back Depth
4.375” Long
E1-1200
Shear Block (For E-Slot)
For 6-3/4” Back Depth
6.000” Long
E1-1236
E9-3531
Heavy Duty Door Jamb
Use with AS-0441
Heavy Duty Door Stop
Elastomer Weathering
E2-0051 Included
Use with E9-3531
AS-0441
Snap-In Door Stop
Elastomer Weathering
E2-0051 Included
Use with E9-1224 & E9-3513
AS-0417
Optional Shear Clip
For 3-3/4” Back Depth
Incidental Water Head
E1-3523
Optional Shear Clip
For 5-1/4” Back Depth
Incidental Water Head
E1-3019
Mullion Splice Sleeve
For 5-1/4” Back Depth E1-1201
Mullion Splice Sleeve
For 6-3/4” Back Depth E1-1299
Mullion Splice Sleeve
For 3-3/4” Back Depth E1-1212
Perimeter Anchor
For 1” Glazing E9-1223

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-3
ACCESSORIES
Face Cover
Splice Sleeve
For E9-1206
E1-1202
Mullion Splice Sleeve
For 3-3/4” Back Depth
Open Back Jambs
E1-1354
Mullion “T” Anchor
For E9-1235 & E9-3537
3.462” Long
E1-1207
Mullion “T” Anchor
For E9-1215 Only
4.866” Long
E1-1208
Mullion “T” Anchor
For E9-1225
4.960” Long
E1-1209
Mullion “F” Anchor
For E9-1235, E9-3537, &
E9-3584
3.462” Long
E1-1232
Mullion “F” Anchor
For E9-1215
4.866” Long
E1-1233
Mullion “F” Anchor
For E9-1225 & E9-3580
4.960” Long
E1-1231
Mullion End Cap
2.500” x 2.313” x 0.050” E1-1286
Temporary Glass
Retainer
2” Long
E1-3012
Mullion “T” Anchor
For E9-1242
6.453” Long
E1-1238
Mullion “F” Anchor
For E9-1242
6.453” Long
E1-1240
Mullion End Cap
For 3-3/4” Depth Optional
Incidental Water Head
E1-3527
Mullion End Cap
For 5-1/4” Depth Optional
Incidental Water Head
E1-3526
Wind Load Anchor
Steel with Zinc Oxide Paint
Refer to Shop Drawings
for Anchor Dimensions
E1-1204*
Project
Specific
Dead Load Anchor
Steel with Zinc Oxide Paint
Refer to Shop Drawings
for Anchor Dimensions
E1-1205*
Project
Specific
Steel Reinforcement
2” x 4” x 1/4” Steel Tube
With Zinc Oxide Paint
E1-0162
Steel Reinforcement
2” x 4” x 1/4” Steel Tube &
(2) 1/4” x 1-3/4” Steel Bars
With Zinc Oxide Paint
E1-0154
Optional Jamb
Anchor Clip
For Open Back Jambs
E9-3580 & E9-3588
E1-3525
Optional Jamb
Anchor Clip
For Open Back Jambs
E9-3584 & E9-3592
E1-3524
Setting Block
For 1/4” Glazing
EPDM with Pressure
Sensitive Adhesive
E2-0112
Setting Block
For 1” Glazing
EPDM with Pressure
Sensitive Adhesive
E2-0104
Side Block
For 1” Glazing
EPDM with Pressure
Sensitive Adhesive
E2-0105
Jamb Anchor Plate E1-3536

YCW 750 OGP Curtain Wall System
Page-4 04-4031-15 | Effective Date: March 26, 2021
ACCESSORIES
Thermal Isolator
Use with Polyamide
Pressure Plate
E2-0265
Interior/Exterior
Glazing Gasket
Weep Hole Tube
E2-0120
E3-3125
E-Slot Plug
For Slide-In Horizontal at
End Bays
E2-0123
#12 x 3/4” FHSMS Type AB
Zinc Plated Steel, (Exposed
Fasteners) For Attachment of
Horizontal to Shear Block
FC-1212
#12 x 1-1/4” FHSMS Type AB
Zinc Plated Steel, (Concealed
Fasten.) For Attachment of
Horizontal to Shear Block
FC-1220
#8 x 3/8” PHSMS
Zinc Plated Steel, For
Attachment of Glazing
Adaptors
PC-0806
#8 x 1/2” PHSMS Type F
Stainless Steel
For Attachment of Face
Cover Splice Sleeves
PF-0808
-SS
#12 x 1/2” PHSMS Type AB
Zinc Plated Steel
For Attachment of Optional
Head to Shear Clips
PC-1208
Anchor Slip Pad
For Dead Load &
Wind Load Anchors
E3-0103
Weep Baffle
For Optional Incidental
Water Head Members
E2-0099
1/4”–20 x 1” HWHS Type F
Zinc Plated Steel, For
Attachment of Std. Shear Block
to Steel Reinforced Mullion
1/4”–20 x 1” HWHS
Type CA, Stainless Steel, For
Attachment of
Temporary Glass Retainer
HF-2516
-W1
HD-2516
-W3-SS
1/4”–20 x 5/8” HWHS
Type F, Zinc Plated Steel,
For Attachment of
Std. Shear Block to Vertical
HF-2510
-W1
#14 x 5/8” FHSMS
Type AB, Zinc Plated Steel,
For Attachment of Mullion
End Caps
FC-1410
1/4”–20 x 1-1/4”
HWHMS Type CA, Stain-
less Steel, For Attachment
of Polyamide Pressure Plate
1/4”–20 x 1” HWHMS
Zinc Plated Steel, For
Attachment of “J” Anchor at
Jamb
HD-2520
-W3-SS
HM-2516
-W3
1/4”–20 x 1-3/4” HWHS
Type F, Zinc Plated Steel,
For Attachment of
Opt. Shear Clip to Vertical
HF-2528
-W1
1/4”–20 x 3-1/2” HWHMS
Zinc Plated Steel, For
Attachment of “J” Anchor at
Intermediate Vertical
HM-2556
-W3
1/4”–20 Nut HHMS
Zinc Plated Steel, For
Attachment of “J” Anchor at
Intermediate Vertical & Jamb
HM-2500
Joint Plug
For Slide-In Horizontal at
End Bays, 1” Glazing
Use with E2-0123
E2-0124
End Dam Plug
Use with E9-1223 &
E9-1231
E2-0505
#8 x 1/2” FHSMS Type AB
Stainless Steel
For Attachment of Deep Face
Cover at Exposed Area
FC-0808
-SS
Standard Joint Plug
For 1” Glazing
EPDM Sponge
E2-0102

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-5
ACCESSORIES
1/4” Flat Washer
Zinc Plated Steel, For
Attachment of “J” Anchor
1/4” Fender Washer
Zinc Plated Steel, For
Attachment of Polyamide
Pressure Plate
WW-2500
1/4” Lock Washer
Zinc Plated Steel, For
Attachment of “J” Anchor at
Intermediate Vertical & Jamb
WS-2500
FW-2500-
SS
Drill Fixture H-7210

YCW 750 OGP Curtain Wall System
Page-6 04-4031-15 | Effective Date: March 26, 2021
FRAME FABRICATION
Dead Load
Anchor
Splice Joint
Wind Load
Anchor
Vertical End*
Attachment
Wind Load
Anchor
MULTI-SPAN
TWIN SPAN
SINGLE SPAN
Vertical End*
Attachment
Vertical End*
Attachment
Vertical End*
Attachment
Wind Load
Anchor
Vertical End*
Attachment
FRAME TYPES / ANCHORING METHODS
The following is a guideline for common
types of frames. Refer to shop drawings for
exact layout of frames.
Smaller units may be assembled on the
ground and tipped in place. Larger units
require being stick assembled in place.
Note: If YKK AP does not prepare the shop
drawings for the project, a qualified engineer
must approve all anchors, their arrangement,
and mullion selection.
All anchors must be attached to structurally
sound material that will accommodate the
anchor reactions.
* Vertical end attachment will be continuous
perimeter anchor or mullion end anchors
“J”, “T” or “F”.
Fabrication of YCW 750 OG varies depending on the type of vertical end attachment
required for a given project:
Perimeter Anchors are for low load anchoring conditions (maximum 500lb. end load reaction):
E9-1223 & E9-1231.
“J” Anchors are for medium to high load conditions: E1-3501, E1-3502, & E1-3505.
“T” & “F” Anchors are for high load conditions: E1-1207, E1-1208, E1-1209, E1-1231,
E1-1232, & E1-1233.

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-7
FRAME FABRICATION
STICK BUILD
Open Back Head
w/ Access Holes
For Anchors
Open Back Sill
w/ Access Holes
For Anchors
FRAME TYPES / ANCHORING METHODS
Using Perimeter Anchors:
-Vertical mullions must be notched as shown in Detail 1 on Page-7.
Using Mullion End Anchors:
YCW 750 OG has three possible end
anchoring conditions: “J”, “T”, and “F”.
-”J” anchors are used with jambs and
intermediate verticals at the sill only.
-”T” anchors are used with intermediate
verticals at the head and sill.
-”F” anchors are used with jamb mullions
at the head and sill.
-Anchor usage depends on end reaction,
stress, and attachment.
Mullions should be pre-assembled with
shear blocks/clips, end anchors, and steel
or aluminum reinforcing if necessary.
End anchors should be pre-drilled for
anchor fasteners according to approved
shop drawings or engineering calculations.
Framing Members for Stick Build:
-Open back head and sill members provide
easy access to end anchor bolts.
-Closed horizontal members are used at all
intermediate locations except at end bays.
-Open back intermediate horizontals are
used at end bays to clear the shear blocks.
Note: When using stick build construction,
check overall frame width every
fifth mullion as the wall is installed.
A buildup of cumulative tolerance errors
may occur, resulting in excessive DLO spacing.

YCW 750 OGP Curtain Wall System
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FRAME FABRICATION
7/8”
7/8”
Notch Top and
Bottom of Vertical
& Jamb Mullions
Step 1
-Cut all vertical and jamb mullions to dimensions as shown on shop drawings.
Allow for 1/2” caulk joint around the frame & 1/2” joint at vertical splices.
Note: Mullions at door jambs are sealed against the substrate at the sill without a shim space at
that location.
Step 2
-When using continuous perimeter anchors, E9-1223 or E9-1231, the top and bottom
of vertical and jamb mullions must be notched as shown in Detail 1, and sealed as shown
on Page 22.
Note: Do not notch verticals when using mullion end anchors: “J”, “T” or “F”.
Detail 1
FABRICATE VERTICAL MULLIONS
For Vertical & Jamb Mullions with
Perimeter Anchors Only

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-9
FRAME FABRICATION
0.213” Dia.
(Std. Shear Block)
0.281” Dia.
(“J” Anchor)
Top of
Horizontal
“B”
“A”
Head
Sill
Standard Shear Blocks
& “J” Anchors
3-3/4” Depth Optional
Incidental Water Head
5-1/4” Depth Optional
Incidental Water Head
1-1/8” 3/4”
7/8”
2-1/4”
3-3/8”
1-1/4”
11/16”
11/16”
1/2”
1/2”
Caulk
Joint
Caulk
Joint
1-1/4”
1-1/4”
Frame/Mullion Height
Jamb
Intermediate
Vertical
0.213” Dia.
(Shear Clips)
0.213” Dia.
(Shear Clips)
2-3/4”
Dim “B”
1-1/2”
5-1/4”
Dim “A”
3-3/4”
STEP 3
FABRICATE VERTICAL MULLIONS
-Mullion hole locations for shear blocks, shear clips, and “J” anchors are shown below.
-Drill 0.213” dia. (#3 bit) holes for shear block/clip attachment at the locations indicated.
-Drill 0.281” dia. (#9/32 bit) holes for “J” anchor attachment at the sill at the locations indicated.
See Detail 2.
Note: Hole locations for standard shear blocks are not the same as shear clips for optional
incidental water head.
Detail 2

YCW 750 OGP Curtain Wall System
Page-10 04-4031-15 | Effective Date: March 26, 2021
FRAME FABRICATION
Bottom of Mullion
3”
Top of Mullion
3”
Steel
Reinforcing
Vertical
HF-2516-W1
Fasteners
Shear
Block
Flat Head
Fastener 0.281” Dia. (Mullion Only)
0.213” Dia. (Steel Only)
18”
Max.
18”
Max.
18”
Max.
STEP 4 (Optional)
USING STEEL REINFORCING
-Steel reinforcing must be primed/coated to insulate the steel from the aluminum.
When engineering calculations require the vertical mullions to be reinforced with steel,
secure the reinforcing to the vertical using the appropriate fasteners.
-Start 3” from both ends of the mullion and install a
fastener on both sides of the mullion tongue.
-Stagger the fasteners on either side of the tongue
going up the vertical.
-Seal all screw heads with sealant.
Note: Exact size of reinforcing, size and location of
fasteners to be determined by a qualified engineer.
Steel reinforcing is also attached on the sides of the
mullion with the attachment of shear blocks.
-Drill 0.281” dia. (9/32 bit) clear holes in the mullion only.
-Match drill 0.213 dia. (#3 bit) tap holes in the reinforcing only.
-Attach the shear blocks with HF-2516-W1 fasteners.
See Detail 3.
Detail 3

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-11
Vertical
Head
Sill
Inter.
Horizontal
HF-2510-W1
HF-2510-W1
HF-2510-W1
Standard
Shear Block
Standard
Shear Block
Vertical
Incidental
Water Head
Shear Clip
HF-2510-W1
HF-2510-W1
HF-2528-W1
Standard
Shear Block
E-Slot
Shear Block
Detail 4
FRAME FABRICATION
STEP 5
ATTACH SHEAR BLOCKS/CLIPS FOR HORIZONTALS
Standard shear blocks are used to attach horizontal members to the jambs and verticals.
Shear blocks for E-Slots (E1-1200 & E1-1206) are attached the same way.
E1-3503 for 3-3/4” back members.
E1-3504 for 5-1/4” back members.
-Attach shear blocks to jambs and verticals with (2) HF-2510-W1 fasteners per block.
Shear clips are used to attach optional incidental water head members to the jambs and verticals.
E1-3523 for 3-3/4” back members.
E1-3019 for 5-1/4” back members.
-Attach shear clips to jambs and verticals with (2) HF-2528-W1 fasteners per block.
See Detail 4.
Note: Do not attach standard shear blocks at the head and sill for end bays at this time.
See Step 16 for head and sill end bay attachment.

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FRAME FABRICATION
Vertical
JAMB
INTERMEDIATE
VERTICAL
Vertical
WW-2500 WW-2500
WS-2500 WS-2500
“J” Anchor “J” Anchor
HM-2500 HM-2500
HM-2556-W3
HM-2516
STEP 6
ATTACH “J” ANCHORS
In addition to anchoring the curtain wall frame to the structure, “J” anchors are used to attach
sill members to jamb and vertical mullions:
E1-3501 for 3-3/4” back members.
E1-3502 for 5-1/4” back members.
Note: “J” anchors are used at the sill only.
Attach “J” Anchors at Jambs:
-Align the “J” anchor with the mullion and insert the HM-2516 bolts through the inside
of the mullion and out the “J” anchor.
-Install 1/4” flat and lock washers between the anchor and HM-2500 hex nuts.
Attach “J” Anchors at Intermediate Verticals:
-Align the “J” anchors and insert the HM-2556 bolts through both anchors and the mullion.
-Install 1/4” flat and lock washers between the anchor and HM-2500 hex nuts.
See Detail 5.
Detail 5

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-13
“A”
Top of
Horizontal
“B”
1”
1-1/8”
0.236” Dia.
C’Sink for
#12 Flat Head
0.236” Dia.
C’Sink for
#12 Flat Head
Daylight Opening (D.L.O.)
Daylight Opening (D.L.O.)
11/16”
11/16”
2-3/4”
Dim “B”
1-1/2”
5-1/4”
Dim “A”
3-3/4”
Detail 7
FRAME FABRICATION
STEP 7
FABRICATE HORIZONTAL MEMBERS
-Cut all horizontal members to the daylight opening as shown in shop drawings.
-Cut all horizontal flush fillers to the daylight opening minus(–) 1/32”.
-Horizontal members must be fabricated for shear block/clip attachment as follows:
Horizontals with Concealed Fasteners:
-Layout hole locations on the face of the horizontal at both ends as shown below.
-Drill 0.236” diameter (#B bit) holes and countersink for #12 flat head fasteners.
See Detail 6.
Horizontals with Exposed Fasteners:
-Layout hole locations on the top of the horizontal at both ends as shown below.
-Drill 0.236” diameter (#B bit) holes and countersink for #12 flat head fasteners.
See Detail 7.
Detail 6

YCW 750 OGP Curtain Wall System
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FRAME FABRICATION
1-1/2” Dia. Hole
As Required
1-1/2” Dia. Hole
As Required
Open Back
Head/Sill
“A”
4-3/4”
3-1/4”
5-1/4”
3-3/4”
Dim “B”
Notch Horizontal
Ends to Clear
End Anchors
& Anchor Bolts
Dim “A”
“B”
3-1/2”
STEP 7 (Continued)
FABRICATE HORIZONTAL MEMBERS
Open Back Head & Sill with “T” & “F” Anchors (5-1/4” & 3-3/4” Back Depths Only):
-Open back head & sill members require holes to access anchor bolts.
-Drill 1-1/2” dia. holes at anchor locations as required by approved shop drawings or
engineering calculations.
See Detail 8.
Tubular Head & Sill with “J”, “F” & “T” Anchors:
-Tubular head and sill members must be notched at each end to clear mullion end anchors and
anchor bolts.
-See Detail 9 below for notch dimensions.
Detail 8
Detail 9

YCW 750 OGP Curtain Wall System
Effective Date: March 26, 2021 | 04-4031-15 Page-15
FRAME FABRICATION
7/16”
27/32”
9/16”
1/8” 5/16”
27/32”
5/32”
1-13/16” E-SLOT
1”
“V”-Grooves
0.313” Dia.
Weep Holes
As Required
0.213” Dia.
Holes
Daylight Opening (D.L.O.)
STEP 7 (Continued)
FABRICATE HORIZONTAL MEMBERS
Optional Incidental Water Head (5-1/4” & 3-3/4” Back Depths Only):
-Layout hole locations on the bottom of the horizontal along the “V”-grooves at both ends.
-Drill 0.213” diameter (#3 bit) holes at each location.
Incidental water head members require weep holes along the top face of the mullion.
-Layout hole locations along the “V”-Groove of the top face as required according to
approved shop drawings or engineering calculations.
-Drill 0.313” diameter weep holes at each location.
See Detail 10.
Optional Slide-In Tubular Horizontals at End Bays (E-SLOT):
When using tubular horizontals at end bays, horizontals must slide in from the interior.
-In order to clear the shear blocks on the verticals, notch the face and tongue of the
horizontal at both ends as shown below.
See Detail 11.
Detail 11
Detail 10

YCW 750 OGP Curtain Wall System
Page-16 04-4031-15 | Effective Date: March 26, 2021
FRAME FABRICATION
1/4” 1/4”
1-1/2” 1-1/2”
Daylight Opening (D.L.O.)
Pressure Plate Length = D.L.O. – 1/2”
Edge of Vertical Mullion
Edge of Vertical Mullion
Daylight Opening
& Pressure Plate
0.375” Dia.
Weep Holes
0.281” Dia.
Holes
8” O.C. 8” O.C.
Maximum Maximum
3” 3”
C
L
Pressure
Plate
“V” Grooves
STEP 8
FABRICATE PRESSURE PLATES
Horizontal Pressure Plates:
-Cut all head, sill, and intermediate horizontal pressure plates to the daylight opening between
verticals minus(–) 1/2”.
-Pressure plate stock lengths have 0.281” dia. holes factory drilled every 8” on center.
After cutting, drill additional holes if required to ensure that end holes are 1-1/2” from each end.
-If factory drilled holes are less than 1-1/2” from the ends, interior and exterior holes must be
sealed and tooled smooth.
-Using a 3/8” dia. spade drill bit, drill two 0.375” (3/8”) diameter weep holes 3” from each end
and one at the centerline of the pressure plate.
See Detail 12.
Horizontal Pressure Plates:
-Horizontal Pressure Plate must have E3-3125 5/16”
weep tubes installed at each weep hole location.
-Insert the weep hole tube from the exterior side of
the pressure plate until it is flush.
-Apply and tool sealant into both ends of pressure
plate hollows.
See Detail 12a.
Detail 12
Detail 12a
E3-3125
Sealant