NanaWall^® Sl70: The Monumental Thermally Broken Aluminum Folding System

Technical Description SL70

The SL70 is a monumentally-sized, thermally broken aluminum folding panel system designed to provide an opening glass wall or storefront up to 36' wide (see Maximum Size Chart). It is available in various configurations utilizing one to twelve panels (see elevation drawings). The running astragal design provides extra stability. An option for swing entry/exit panel(s) is available; note however the further panel size constraints with a swing panel not hinged to a side jamb. Units can be either inward or outward opening (see details in the section drawings).

Frame and Panels

The frame components, including the raised sill, are 3 1/8" (80 mm) wide extruded aluminum that is thermally broken with ¾" (20 mm) wide polyamide plastic. The panels and running posts are 2 3/4" (70 mm) wide extruded aluminum that is thermally broken with a 15/16" (24 mm) wide polyamide plastic (see section drawings). Standard finishes available are clear anodized, dark bronze anodized or white powder-coated. Custom finishes can be chosen from over two hundred RAL colors. See Aluminum Finish Options in the General Introduction. It is possible to have different finishes on interior and exterior surfaces.

Panels and running posts are pre-assembled. All pins and screws to assemble frame are provided.

Besides the more weathertight raised sill, various standard aluminum flush sills (shown in section drawings) are available as an option in a clear or dark bronze anodized finish.

Glazing

Units can be supplied either glazed with 15/16" (24 mm) or 1 1/2" (38 mm) clear insulated safety, insulated Low-E safety, 1 1/8" (28 mm) insulated impact, other high performing safety glass such as heat mirror, acoustic, special tint, etc., or other glass on request. See Glazing in the General Introduction section for other glass thickness possible.

Weatherstripping

All weather stripping (consisting of EPDM or brush seals) is provided for sealing between panels and between panels and frames (see section drawings).

Sliding/Folding Hardware

For sliding and folding each pair of panels, a patented, floor-supported lower running carriage is attached to the running post profile. An upper running carriage is attached as a guide (see the section drawings). The four roller lower running carriage lies above the water run-off level and is constructed to ensure even distribution of pressure on all four rollers. Rollers are stainless steel and have sealed bearings to ensure sound-free running and resistance to extreme temperature.

Two to seven patented hinges per connection are provided to connect panels and running post profiles together and to connect panels to the frame. Hinge finish would be closest powder coat match to panel profile.

Locking Hardware and Handle Options

For each pair of folding panels (except for the pair to be opened first in a unit with no swing panel) provided is two point locking hardware consisting of top and bottom Polyamide capped locking rods operated by a 180º turn of a U-shaped nylon handle on the inside only.

If there is a swing panel, there are the following hardware options on the main entry panel:

1. Multi-point Locking. Consisting of lever handles on both sides, a Schlage compatible lockset, lockable latch, deadbolt and rods at the top and the bottom. Depression of handles withdraws latch, lifting of handles engages rods and turn of key or thumbturn engages deadbolt and locks.
   
   For a unit with a secondary swing panel and solid brass lever handle set on the primary swing panel, available are matching dummy lever handles on both sides and concealed flush bolts that operate the rods at the top and the bottom.
2. Deadbolt Lock. ADA approved nylon pull handles on both sides with deadbolt(s) operated by a lockset. Turn of key or thumb turn operates lock. Lockset option of having key operation on both sides. To keep the panel closed, a door closer should be field installed, but note that a door closer can only be installed for a swing panel that is attached to the side jamb.
3. No Hardware. For panic hardware to be installed by others, the main entry panel can be supplied with no locking hardware.

For a unit with no swing panel, on the folding pair to be opened first: Two point locking hardware consisting of top and bottom Polyamide capped locking rods operated by a 180º turn of a L-shaped/U-shaped nylon handles on both sides. Lockable with a lockset. Turn of key or thumb turn operates lock.

For a unit where locking/handles inside only is desired, like in window applications, on all swing panels or pair of folding panels to be opened first, provided is two point locking with a U-shaped handle on the inside only.

Standard nylon handle finishes are dark brown, white and gray. Standard solid brass lever handle set finishes are white, satin nickel and oil rubbed brass.

Last updated: 12/19/2007