329 Boston Post Road

Sudbury, Massachusetts 01776

tel: 978-443-4911

fax: 978-443-5804

www.shannoncorporation.com

SECTION 12520

MECHOSHADES AND ELECTROSHADES

PART 1  GENERAL

1.1  SUMMARY

A.  Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this section.

B.  Refer to other Divisions of these specifications to determine the type and extent of work therein effecting the work of this trade, whether or not such work is specifically mentioned in the Section.

1.2  DESCRIPTION

A.  Work of this Section consists of furnishing all labor, materials, equipment and services necessary to complete the work indicated:

  1. Interior, manually operated and / or motorized sun control and / or room darkening shades; including all accessories, fittings and fasteners.

1.3  SUBMITTALS

A.  Submit the following in accordance with Division 1- General Requirements:

Clearly indicate any deviations from specified requirements and reasons for deviations.

  1. Product Literature: Manufacturer's product data sheets, specifications, performance data, physical properties and installation instructions for each item required.
a.  Provide additional information for fabric; including size limitations, fire resistance information and toxicity informati
b.  Identify available shadecloth colors, densities and weaves.
c.  Include manufacturer's proposed warranty; defining all terms, conditions and time periods for warranty coverage.
2.  Shop Drawings: Dimensioned 1/4 inch scale drawings including actual measurements taken at the project where practical. Include complete fabrication details and erection drawings.
3.  Selection Samples: 3 by 5 inch shadecloth sample swatches indicating full range of colors, densities and weaves available for initial selection.
4.  Wiring Diagrams and Schematics for Electrically Operated Units: submit detailed wiring diagrams and schematics of the entire system; each component of the system with a detailed list of components, wiring schematics and operational characteristics for every level of operation.

B.  Certificate of Compliance: Manufacturer shall submit notarized certificate of compliance indicating compliance with requirements of specifications; including statement that specified warranty will be provided without restriction. Manufacturer shall certify that materials proposed for use comply with applicable building code and environmental regulations.

  1. Alternates: Bidder must provide bid on specified items. Bidder providing or requesting consideration of alternate products shall be fully liable for all costs attributable to acceptance of the change from the architects, engineers, general contractors and subcontractors effected by the change. Further, bidder shall clearly indicate reasons for the consideration of the alternate product. Such description shall include, but not be limited to, cost, performance, construction, installation and operation or advantages of proposed system.

1.4  QUALITY ASSURANCE

A.  Obtain products specified in this Section from a single manufacturer.

B.  Installer Qualifications: Minimum 3 years documented experience; demonstrating previously successful work of the type specified herein; approved by window shade manufacturer.

C.  Take field measurements before preparation of shop drawings and fabrication, where possible, to ensure proper fitting of window shade system.

1.5  DELIVERY, STORAGE AND HANDLING

A.  Deliver prefabricated shades to site in manufacturer's original, labeled and unopened protective packaging. Labels to be intact and legible; identifying manufacturer and contents; uniquely identified for each intended location.

B.  Store products off ground, under cover, protected from elements and construction activities. Schedule delivery to prevent delays, but minimize on-site storage.

1.6  WARRANTY

A.  Manual Operating Components: Provide warranty under provisions of Division 1 - General Requirements. Warranty period shall be 10 years from Date of Substantial Completion. Warranty shall contain provisions that installation shall remain operational, without fault, for the warranty period. Warranty shall include all operating parts with the exception of the bead chain, which is not covered by the warranty, and is deemed a maintenance / service item.

B.  Motor and Electrical Components: Provide warranty under provisions of Division 1 - General Requirements. Warranty period shall be 2 years from Date of Substantial Completion. Warranty shall contain provisions that installation shall remain operational, without fault, for the warranty period; including coverage of motor, electrical controls and override circuits.

C.  Shadecloth: Provide warranty under provisions of Division 1 - General Requirements. Warranty shall be for a minimum period of 10 years from Date of Substantial Completion. Warranty shall contain provisions that the shadecloth will not deteriorate, sag or warp and will not be unfit for the use intended for the warranty period.

PART 2  PRODUCTS

2.1  MANUFACTURER

A.  Manufacturer: To establish a standard of quality, design and function desired, Drawings and Specifications are based on products by MechoShade Systems Inc., Long Island City, NY. (718)729-2020. Fax (800)899-8081. As represented by SHANNON, phone: (978)443-4911.Fax: (978)443-5804. http://www.shannoncorporation.com

B.  Provide manual ‘MechoShades’ in location, size and type as indicated on drawings. Provide motorized ‘ElectroShades’ in location, size and type as indicated on drawings. Provide double shades (one sunscreen and one room darkening) where indicated on drawings.

2.2  MANUAL SHADES – ‘MECHOSHADES’

A.  Type: Manual ‘MechoShades’, pre-engineered, smooth operating chain and sprocket driven roller shade system which incorporates a clutch permitting shade operation to be set in static mode. In static mode, shade shall stop in any position. Upper and lower limits shall prevent over-winding and unrolling.

B.  Components:

  1. Drive Bracket/Brake Assembly:
a.  MechoShade 5 Drive Bracket shall be fully integrated with all MechoShade accessories and brackets, including but not limited to SnapLoc Fascia, Black Out Channels, center supports and connectors for multi-band shade operation etc.
b.  MechoShade 5 bracket shall use the standard 1/8 inch (3.175mm) steel plate for mounting and support of the assembly. The drive sprocket and brake assembly shall rotate and be supported on a welded 3/8 inch steel pin (9.525mm).
c.  The brake means shall be an over running clutch design which shall disengage to 90% during the raising and lowering of a shade. The brake shall with stand a pull force of 50 lbs. (22kg) in the stopped position.
d.  The braking (patent pending) means shall be applied to a oil impregnated hub on to which the brake system is mounted. The oil impregnated hub design includes an articulated brake assembly which assures smooth, non-jerky operation in raising and lowering the shades. The brake assembly is warranted for the life of the system, which is in itself warranted to be fit for the use intended for 10 years.
e.  The entire MechoShade 5 assembly shall be fully mounted on the steel support bracket, and fully independent of the shade tube assembly, which may be removed and reinstalled with out effecting the roller shade limit adjustments.
f.  Wall or ceiling mounted as indicated.
g.  Raise shade by means of stainless steel bead chain (not coated steel)which shall run through and engage clutch assembly in drive-end bracket. Chain shall have a breaking strength of not less than 100 lbs.
2.  Shade mounting system: Shade to be mounted to extruded aluminum roller tube. Roller tube to be minimum 1-1/2 inch diameter extruded aluminum, 6063-T5 alloy and minimum wall thickness of .065 inch, with asymmetrical shaped channels running along two sides; which matching SnapLoc vinyl spline at top of shadecloth snaps into. Shade with SnapLoc spline at top shall be removable and replaceable without disassembling hardware.
3.  Roller tube shall geometrically fit onto drive-end bracket. Roller tube shall fit into idle-end bracket by means of a plug and pin assembly.
4.  Accessories:
a.  Provide extruded aluminum pocket with exposed tile support and removeable closure with baked enamel finish where indicated on drawings. Accessibility by removing closure. No exposed screws or mounting means. Pocket shall be sized for specific project conditions.
b.  Provide SnapLoc extruded aluminum fascia in conditions where shades are mounted outside of pocket. Fascia shall continuously fit on side and center brackets with no visible means of support or notching.
c.  Provide extruded aluminum Blackout Channels with brush filler where indicated on drawings only.
d.  Concealed Hembar: Provide concealed hembar. Hembar shall be heat sealed on top and sides with straight seams so that hembar is fully enclosed on all sides. Sewn hems will not be acceptable.

2.3  ELECTROSHADES WITH IQ/MLC

A.  Motorized ‘ElectroShades’ shall be controlled by IQ/MLC units. Shades of different weights and sizes shall be capable of accurate mid window alignment at any of 3 intermediate window positions as well as full up and full down. Where possible, slave shadebands to minimize number of motors required.

  1. The motor shall be tubular asynchronous and concealed inside an extruded aluminum tube with asymmetrical channels to which the shade and the mounting spline are affixed. All motors shall be wired per manufacturer's published electrical details to IQ/MLC units which in turn will be wired to local and master switches.

B.  IQ/MLC Intelligent Motor Controller: IQ/MLC microprocessor units shall be installed in readily accessible locations so that they can be programmed to fit building use at any time. Motorized shades shall have the capability of aligning at the following positions: full up, full down, standard intermediate stop positions at 25%,50%,75% of window height; or any 3 custom user defined positions.

  1. Switches: Provide local and master switches where indicated on drawings. Each local switch shall control up to 4 motors. Master switches shall control all shades assigned to them and may override local switches. System may have up to four local switches per IQ/MLC unit controlling any combination of up to four motors per IQ/MLC unit. Provide Lite Touch 4 position architectural switches. Switch color to be selected by architect from manufacturer's standard colors. "Rocker" switches shall not be accepted.

2.4  MOUNTING

Select one

A.  Wall mounted: Provide heavy duty stainless steel angle mounted on wall above window opening to which drive end bracket and idle end bracket can be mounted.

B.  Pocket Mounted: Provide extruded aluminum pocket with removeable extruded aluminum closure strip in size recommended by manufacturer for the project condition.

C.  Window Mounted: Mount Electroshades or MechoShades within window mullion. Provide extruded aluminum SnapLoc fascia to conceal operating components.

D.  Provide manufacturer’s double bracket in size and type recommended where drawings indicate a double shade condition – one sunscreen shade and one room darkening shade per opening.

2.5  SHADECLOTH

A.  Single Fabric Shadecloth: Provide Thermoveil fabric group by MechoShade; a single thickness, non-raveling .030 inch thick vinyl fabric, woven from .018 inch diameter extruded vinyl yarn; comprised of 21 % polyester and 79 % reinforced vinyl. Provide color, density and weave as selected by architect from manufacturer's available range .

  1. Fabric Selection
a.  Sunscreen shades: [enter selection]
b.  Room Darkening shades: [0700 series, 0900 series or Equinox] Color to be selected by architect.

2.6  FABRICATION

A.  Prior to fabrication, verify actual opening dimensions by accurate site measurements. Adjust shade sizes for proper fit at each window.

B.  Cut shadecloth to suit window size by means of edge sealing hot knife system. Top of shadecloth to be attached to SnapLoc spline. Bottom of shadecloth to include smooth, concealed hembar; heatsealed on all four sides.

C.  Furnish shadecloth in lengths not less than 12 inches longer than actual window dimensions to permit shade to be operated full length without tearing from roller.

PART 3  EXECUTION

3.1  INSPECTION

A.  Examine conditions under which light control and / or blackout shades are to be installed.

B.  Report unsatisfactory conditions to architect in writing.

C.  Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2  INSTALLATION

A.  Install shades in accordance with recommended manufacturer's installation instructions.

3.3  ADJUST AND CLEAN

A.  Adjust shade operating assemblies for smooth and proper operation.

B.  Clean soiled shade surfaces and components with a mild soap and water solution only. Do not use steam, hot water, bleach or any abrasive or solvent based cleaners for cleaning.

END OF SECTION

12520-4 SUN CONTROL ROLLER SHADES