Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate IV)



CASINO APPLICATION:

Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate IV- 2 Service) March 2008

PART 1: GENERAL

1.01 SCOPE

Furnish the complete structural/electrical steel floor system. Work includes, but is not necessarily limited to, the following principal items:

A. Composite cellular and non-cellular steel deck units and accessories, including concrete retainer flashings where indicated; perimeter edgeform if specified.

B. All factory punched cell access holes at trench header and preset outlet box locations.

C. Trench headers, flute closers, preset outlet boxes, grommets, butt joint tape and power risers.

D. Preset outlet box activation assemblies.

1.02 RELATED WORK SPECIFIED IN OTHER SECTIONS

A. Concrete, welded wire fabric, or reinforcing fibers; Section 03300.

B. Fireproofing; Section 07250.

C. Decking; Section 05500.

D. Electrical; Section 16000.

1.03 QUALITY ASSURANCE

A. Standards

1. This specification establishes the minimum quality of required function, dimension, size and appearance to be met by any proposed substitution.

2. The manufacturer shall provide a list of successful projects with this type of electrified floor system on casino projects.

B. Codes and Approvals (latest editions)

The project design and material furnished shall be in strict compliance with the following codes and approvals:

1. Compliance with UL 209 Standard.

2. American Welding Society Structural Welding Code with reference to applicable AISC and AISI provisions.

3. Trench header, cellular floor deck units, and activations classified and listed in Underwriters Laboratories Fire Resistance Directory. Each cellular floor unit shall bear the UL label and marking. Activations shall be listed in UL Fire Resistance Directory. UL rating shall be based on one UL Design Assembly Number covering all components of floor assembly, i.e., cellular and non-cellular floor decking, bottomless trench header, preset inserts, activating assemblies, concrete type and thickness, composite beam and applicable spray fireproofing.

4. Installation shall comply with the National Electrical Code.

5. Steel deck section properties shall be calculated in strict accordance with the procedures outlined in the American Iron and Steel Institute (AISI) "Specification for the Design of Cold Formed Steel Structural Members, " latest edition.

6. Composite beams and girders shall be designed in strict accordance with the American Institute of Steel Construction (AISC) Specification for the design of composite beams with shear studs and steel deck composite slabs, latest edition.

CASINO APPLICATION:

Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate IV-2 Service) March 2008

7. ICBO reports shall cover section properties, superimposed slab capacities, and diaphragm design shears for all cellular and non-cellular decking gauges and profiles being used. In addition, ICBO reports shall substantiate diaphragm shear ratios, section properties, and approved gauges for all metal decks being used with trench header and concrete fill.

1.04 SUBSTITUTIONS

A. The materials, products, and equipment specified in this section establish a minimum standard of quality and required function, dimension, and appearance to be met by any proposed substitution.

B. No substitutions will be considered unless written request for approval has been submitted by the bidder and has been received by the Architect at least twenty (20) days prior to the date for receipt of bids.

C. Each such request shall include the name of all items to be substituted with appropriate catalogs and a complete description of the proposed substitute including drawings, cross-sections, a full-scale prototype assembly, performance and test data, compliance with codes and approvals, and other information necessary for a total evaluation.

D. All approved substitutes will be named in an addendum issued ten (10) days prior to bid date.

1.05 SUBMITTALS AFTER AWARD OF CONTRACT:

A. Manufacturer's specifications and installation instructions for each product specified shall be submitted for approval. Included shall be a notarized manufacturer's certification required to show compliance with these specifications. Also prior to product shipment, a copy of each installation instruction shall be distributed to the installer with a copy of transmittal submitted to show compliance.

B. Shop Drawings

1. Detailed drawings showing layout and types of deck units, shape, gauge, dimensions, perimeter pour stop, and end closers, supplementary framing, cut openings, special jointing or other accessories shall be submitted.

2. Schedule of field welding shall be submitted.

3. Trench header, preset outlet box and riser locations and details, trench header expansion joints, typical expansion joint through floor, if required, shall be submitted.

C. The following listed samples shall be submitted: (1) Multi-Service Preset Outlet Box mounted on one foot sample cellular floor raceway complete with fully grommetted pre-punched holes, illustrating all finish hardware and internal parts. (2) Two foot length of selected width trench header with factory assembled cover, tile stops, side rails, latch clips, adjustable compartment dividers, and fasteners. (3) Activation Options Catalog.

PART 2 - PRODUCTS

2.01 STEEL FLOOR UNITS (QL-GKX)

A. Material: The steel floor units and associated accessories shall be fabricated from steel sheet conforming to ASTM A653-94, with a minimum yield strength of 33 KSI.

B. Fabrication

1. Steel floor units shall be fabricated in lengths to span a minimum of four structural supports (three spans) except where precluded by the building layout.

2. Protective Coating shall conform to ASTM A924 and Federal Specification QQ-S-775E, Type 1, Class E, conforming to G-60 minimum coating class and complying with UL 209.

3. Cellular floor units and trench header shall conform as electrical raceways to the requirements of UL 209.

4. Deck unit gauges shall be minimum 20 gauge for non-cellular and 20/20 gauge for cellular units and designed to meet span, load, and deflection criteria.

5. Cellular floor shall be roll-formed to assure dimensional uniformity and strength. Composite embossments shall provide the horizontal shear design loading based on a minimum factor of safety of 2.0 on ultimate load. Minimum depth of embossments or indents shall be 0.060".

6. Shear devices rolled into deck webs or flanges shall be spaced at 3" maximum centers along the length of the deck or floor unit and at 12" maximum spaces in the transverse direction.

7. Flat compression elements shall be considered as "stiffened" by other elements only if such elements are connected or are welded together at 6" maximum spaces in the direction of deck span. Such connections or welding shall be adequate to develop the full shear which could occur at the weld interface with a safety factor of 2.0.

8. Where shear connectors are utilized for composite frame design, the maximum spacing of deck welds or shear connectors to support beam flanges shall not exceed 18" per AISC specifications.

9. Top entry cell access holes at trench header or preset outlet box locations will be permitted only when tested strength reductions for each cellular unit and gauge combination being supplied on the project are submitted for review and approved by the project structural engineer.

10. Cellular units with immediately adjacent cells separated only by steel dividers (no concrete separation between cells) will be acceptable only when provided with UL listed cell separators at each butt joint nested within the cells to assure against wire or fish tape crossover.

C. Design for Steel Frame Applications

1. Calculate section properties of the steel floor units according to the latest AISI procedures. Section properties shall be reduced accordingly where electrical access holes are provided in the effective areas (such as flanges) of the floor unit profile. The floor deck shall be designed non-compositely to carry all dead and live loads at all trench header spans.

2. In cases where multi-span floor units are used, base non-composite and composite design upon uniform load placed on all spans simultaneously.

3. Maximum allowable bending stress in the steel floor is 0.6 Fy for non-composite design in trench header spans.

4. Steel deck deflection shall not exceed 1/180th of the clear span or 3/4" maximum, relative to the supports, under the uniformly distributed concrete dead load (all spans loaded simultaneously).

D. Design for Slab-on-Grade Applications

1. Steel Floor units must be placed on a well drained substrate over a vapor barrier, or on a concrete “mud” slab.

2. Fix units in position using straps and re-bars at the butt joints and at the mid-point of the length of cells.

3. Place trench header on cells as shown on the installation drawings.

4. Concrete thickness above cells must be a minimum of 2-1/2inches.

E. Required Testing

1. Cellular floor units shall be tested as part of a trench header assembly encapsulated in a concrete slab. Trench header siderails and power tray shall rest on the cellular floor units. Wheel loads of 1500# shall be rolled over the trench header cover plates in both directions. After a minimum of 10 load cycles, the cover plates shall be removed to inspect the cellular floor units.

2. Indentations of the cells below the trench header power tray shall not exceed 1/32".

3. All tests shall be performed by a registered professional engineer and witnessed by an independent testing laboratory.

2.02 TRENCH HEADER

A. Trench Header shall be UL labeled, full bottomless type, with 3/8" steel thick cover plates.

B. Removable Covers Plates shall conform to UL 209 for minimum thickness of roller leveled steel after shearing for size. A manufacturer's letter of certification guaranteeing roller leveling of plate after size shearing shall be provided upon request.

C. Covers shall be secured by mechanical latching devices without any exposed surface fasteners. Direct connection of the cover plate to the side rail assembly with screws or other mechanical fasteners is not acceptable. Steel screws penetrating an aluminum race or slot are not permitted.

D. Factory Assembled Cover Assemblies with Side Rails shall be adjustable from

2-3/8" (min.) to 3-5/16" (max.) over top of cells for 2-1/2" nominal concrete fill, from 3-1/8" (min.) to 4-1/16" (max.) over top of cells for 3-1/4" nominal concrete fill, and from 1-7/8" (min.) to 2-1/2" (max.) over top of cells for 2" nominal concrete fill.

E. A minimum of five square inches per lineal inch of mechanical locking surface of side rail to concrete shall be provided. Anchoring clips and studs used as keying device substitutes are not acceptable. Side rail shall be nominally 1/8" thick and shall provide a 3/8" flat width as a concrete screed and for proper seating of tile or carpet. An alignment key mechanism shall be provided to horizontally and vertically align adjacent trench header sections.

F. Covers shall be painted by a two-coat spray or dip process with an air-dried thickness of 1.0 mil.

G. Longitudinal Cover Seating Gaskets with a nominal width of 1/4" shall be integral with the vinyl tile stop securely anchored to trench side rail units. Separate, "lay in" type gaskets are not permitted.

H. Edging for Finished Floor Tile shall be 1/8" wide and 1/8" high vinyl composition with integral cover seating gaskets. Standard color shall be brown with custom colors available.

I. *Cell Access Holes: A total of eight (8) holes at each cell/trench intersection shall be provided as follows:

Four 1-1/2" x 7" obround, factory punched holes into webs of each low voltage cell and

power cell (for 2-service systems). One-piece, preformed, rigid

nylon, snap-in grommets shall be provided and shall firmly fit into all web holes and

shall completely grommet the opening perimeter. No metal edge shall be exposed to

wires at any punched opening. Flexible stick grommets are not acceptable at factory

punched entry hole. Cutting or other modification to factory supplied grommets is not

acceptable.

J. Effective minimum width of trenches shall be not more than 1-3/4" less than cover width. Unit lengths shall not exceed 6'0" to prevent installation damage.

K. Cell closers at cell ends shall be made from minimum 22 gauge steel angles with protective coating conforming to UL 209.

L. Vertically adjustable dividers, to separate high and low voltage compartments, shall be provided with a 1/2" wide top flange bearing surface to support the cover plate. A locking nut device for precise height setting shall be provided. Manufacturer shall provide test data to show the adequacy of the locking nut device to support a 500# concentrated load without significant vertical slip. Welding of adjustable dividers to provide cover support is optional.

M. Trench header testing shall be performed to verify the capacity of all trench headers to carry Casino rolling cart loads. Dynamic load tests are required using a 4-wheeled or 6-wheeled cart loaded to simulate coin cart loading. Wheels shall be spaced at a maximum distance of 24" in each direction. Deflections under cycle loads run in the parallel, perpendicular, or diagonal direction in relation to the direction of the trench header shall not exceed 1/8" using a 1500# wheel load. Permanent deflections after testing shall not exceed .010 inches at any location after a minimum of 10 cycles of loading.

*Note: For 3-service systems contact H.H. Robertson Floor Systems

N. All testing must be performed by a registered professional engineer and witnessed by an independent testing laboratory.

2.03 PRESET OUTLET BOXES

A. Preset outlet box shall be UL labeled and shall provide for 3 separate electrical services; power, low voltage, and spare.

B. Preset outlet box body shall be one piece construction, minimum 18 gauge, zinc-coated steel, provided with stiffeners to prevent collapse during construction operations. The box shall withstand a vertical load of 200# without permanent deformation. Boxes for 2-1/2" and greater concrete fills shall have locking/grounding latches for one-step, snap-in installation in the field. Boxes shall be secured by four integral snap-lock tabs into separate, pre-punched holes in cellular unit dedicated for that sole purpose. Preset placement by snap locking shall not in any way incorporate the punched cell openings

dedicated to wire egress into the preset. Preset placement by snap locking shall not interfere in any way with low voltage grommets. Boxes less than 18 gauge thickness must have an auxiliary grounding strap screwed or welded to the deck and the outlet box.

C. Preset outlet box shall be one piece integral formed steel body (sides, ends, and top), 4-1/2" wide by 9-1/8" long with a nominal 4" x 7" (28 sq. inch minimum) top entry opening into box body. Top of box shall include a factory screw attached "break out" cover (0.027" minimum thick steel) coated with a concrete release agent. The "break out" cover on the box shall be 5/8" deep for ease of concrete removal.

D. All openings into the box shall be factory punched. Openings in webs of telephone power or data cells shall be 1-1/2" x 3-3/4" obround in each cell (minimum 4.57 square inch area after complete grommetting with snap-in grommet is applied). Opening in top flange of spare cell shall be 1-3/4" diameter round (minimum 1.75 square inch area after complete grommetting with snap-in grommet is applied). One-piece, preformed, rigid nylon, snap-in grommets shall be provided and shall firmly fit into wire egress holes and shall completely grommet the opening perimeter. If this cell is not utilized initially, a snap-in plug shall be field installed. In activated preset boxes no metal edge shall be exposed at any wire egress opening. Flexible, unformed, stick grommets are not acceptable at factory punched holes. No partial grommetting or exposed edges of any kind are acceptable.

E. All preset outlet boxes shall be provided with two 3/4" knock-outs (one in each long side vertical face) for conduit connection as required.

F. Maintain a minimum 3/4" concrete fill depth above preset outlet boxes to assure resistance to rolling loads.

G. Minimum preset outlet box capacity (activated):

Cell Depth Concrete Fill Volume

3" 2-1/2" 169 cu. in.

3" 3-1/4" 199 cu. in.

H. Required Testing:

1. Preset outlet boxes shall be load tested with rolling cart loads in both the pre-active and abandoned conditions.

2. Test samples of cellular deck with preset outlet boxes affixed and encapsulated within a concrete slab shall be subjected to wheel loads of 1500# crossing the center of the box and cycled to a minimum of 25 load cycles. No cracking or deflection shall be observed in the concrete above the box in either the pre-active or abandoned condition. An independent lab report confirming this performance shall accompany submittal as proof of conformance.

3. All testing shall be performed by a registered professional engineer and witnessed by an independent testing laboratory.

2.04 PRESET OUTLET BOX ACTIVATION ASSEMBLIES

A. Activation assemblies shall consist of cover assembly, device mounting brackets and partitions, grommets, and screws. High and low voltage connectors shall not be part of the activation kit. Box activation shall consist of hardware for either concealed (all connectors and fittings below the finished floor surface) or flush mounted. All removable activation cover plates shall be provided with a positive locking device. Friction fit type latching is expressly prohibited. Activation options shall be provided as follows: (Note: desired type, spec only as required)

1. Easy Access Standard - Provide one 15 or 20 amp duplex power receptacle at floor surface with standard dust covers; plus mounting plates for 2 duplex power receptacles below floor and 1 separate bracket for low voltage connectors.

2. Concealed Sloped - Provide under carpet covers and brackets for one or two 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate.

3. Easy Access Deluxe - Provide duplex covers and a mounting bracket for one or two in-cavity 15 or 20 amp duplex receptacles, plus a duplex modular telephone and data interconnect plate

4. Slot Machine or Table Feed -

High Voltage - Valox or aluminum (select one) cover plate shall accept

conduit transition.

All connections will be made at floor level through the carpet . The preset box will contain partition divider to segregate the power and 1 separate bracket for a single or double duplex modular telephone bracket.

5. Above the Floor Multi-Service Outlet - Provide for one 15 or 20 amp duplex receptacle plus one low voltage transition above the floor.

Note: Removal of cover plate shall not expose power connection and damage. This shield shall be totally self abandoning and permanently attached to the activation cover so it cannot be lost. Detachable wire egress blocks are not acceptable..

B. Activation Cover Options (Specify as required)

1. Easy Access Deluxe - Lexan Plastic (KED-NAC) shall consist of a flange ring and separate cover with egress shield. This shield shall be designed to contain multiple grommetted individual ports to separate, shield, and protect wires against crimping.

Flange and cover shall be available in any color to blend aesthetically with surroundings. Flange and cover shall be manufactured from structural Lexan and shall be capable of sustaining an ultimate static point load of 800 pounds through a one-inch mandrel. A lab report confirming this performance shall be available. Cover shall be designed with a recessed area to accept a carpet insert to reduce the visual impact. Cover shall be detachable and re-attachable in either direction on the flange ring. Field notched wire egress holes in the cover or on the flange ring are expressly prohibited. Lexan cover shall accommodate Easy Access Deluxe, Concealed Sloped, and Multi-Service Afterset Activation Assemblies as specified

2. Easy Access Deluxe - Aluminum (KED-MC) shall consist of a flange ring and separate cover with wire egress ports. Cover shall be totally self abandoning with aluminum blocks stored on the underside of the activation lid with Velcro tabs during activation. Aluminum finish shall be anodized, with a hard coat process in a silver or bronze color. Aluminum flange ring and cover shall be made of extrusions and plate. Cast aluminum parts shall not be used to insure adequate structural capacity. Flange and cover shall be capable of sustaining an ultimate static point load of 1500 pounds through a one-inch mandrel. A lab report confirming this performance shall be available. Cover shall be designed with a recessed area to accept a carpet insert to reduce the visual impact. Cover shall be detachable and re-attachable in either direction on the support ring. Field notched wire egress holes in the cover or on the flange ring are expressly prohibited. Aluminum cover shall accommodate Easy Access Deluxe, Concealed Sloped, and Multi-Service Afterset Activation Assemblies as specified.

3. Concealed - Valox Plastic (KEC-PC-3, 4, 5) shall consist of a three-piece assembly consisting of a screw attached center, a hinged power and telephone cover, and a removable data cover. Wires shall exit from connections recessed below the carpet through field notched openings in the cover and through carpet cuts as required. Valox cover shall accommodate Easy Access Deluxe and Concealed Sloped Activation Assemblies as specified.

3A. Concealed - Aluminum (KED-SC-8)

4. Easy Access Standard - Valox Plastic (KEC-PC-5, 7, 8, 12) shall consist of a multiple piece cover assembly comprising of a screw attached center frame with two removable doors to accommodate a flush DUPLEX receptacle, and a removable under the carpet telephone and data covers. Wires shall exit from connections recessed below the carpet through field notched openings in the covers and through carpet cuts as required. Valox cover shall accommodate the Easy Access Standard Activation Assembly as specified.

5. Slot Machine or Table Feed - Valox Plastic (KEC-PC-5, 6) shall consist of a screw attached center power cover, plus a removable telephone and data covers. The cover assembly shall be concealed by the carpet to blend aesthetically with surroundings; only the fittings and conduit shall be exposed. Valox cover shall accommodate the Wired Partition Interface Activation Assembly as specified.

6. Above The Floor Multi-Service Outlet shall consist of a two piece extruded brushed aluminum head, plus one removable under-carpet Valox cover for power egress.

C. Activation Assembly Selection (Select one or more of the following options)

1. The quantity of initial activations during fit-out to be installed at "move in" shall meet both the following criteria:

(a) Ten percent of the total preset and potential afterset count minimum.

(b) One activation every 150 sq. ft. minimum density of usable office space.

2. Activation Option (select as required):

( ) Easy Access Deluxe Lexan Cover (KED-NAC)

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Multi-Service Afterset

( ) Easy Access Deluxe Aluminum Cover (KED-MC)

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Multi-Service Afterset

( ) Concealed Valox Cover (KEC-PC-3, 4, 5)

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Easy Access Standard - Valox (KEC-PC5, 7, 8, 12)

( ) Easy Access Standard Activation

( ) 250 Volt Simplex/Duplex

( ) 30 Amp Simplex/Duplex

( ) Twist Lock Receptacle

( ) Slot Machine or Table Interface - Valox (KEC-PC-3, 4, 5) or (KEC-SC8

aluminum)

( ) Slot Machine or Table Interface Activation

( ) Above The Floor Multi-Service Outlet

( ) Above The Floor Multi-Service Activation

PART 3: INSTALLATION

3.01 STEEL FLOOR UNITS (Composite Deck and/or blended with the cell deck)

Install steel floor units and accessories in accordance with the manufacturer's final approved erection drawings and the manufacturer's floor deck installation manual.

A. Installing Floor Units (for slab-on-grade, see installation drawings)

1. Floor units shall be placed on the supporting steel framework and adjusted to final position with proper end bearing and accurate alignment at the butt joint before permanent fastening. Units shall not be stretched or contracted in the transverse direction. Cellular units shall be laid out on the structural steel frame in each bay and located in strict accordance with the deck erection drawings in order to maintain the transverse module as dimensioned.

2. Steel floor shall not be used for storage or working platforms until it has been permanently fastened. Heavy storage loads shall be supported on wood blocking in the flutes of the deck.

3. Excessive damage to floor units prior to or during the construction phrase can significantly reduce steel deck load-carrying capacity and create a hazardous condition for workers. Appropriate care and judgment shall be exercised to insure that any excessively damaged floor unit is suitably strengthened, shored, or replaced. Shoring of deck in trench span is prohibited since these spans are designed non-compositely.

B. Floor Units shall be permanently fastened to the steel supports with 3/4" diameter fusion welds or 3/4" stud welds at end and intermediate supports as shown on the deck erection drawings. Screws, welds, or button punches shall be used to fasten sidelaps as shown on the deck erection drawings.

C. All deck cells shall be kept clear and free of debris to ensure proper wire passage.

D. Floor deck shall be cut to fit around columns and shall be braced as shown on the structural drawings.

E. Closures shall be fastened in place at columns and perimeter ends of cells or where cells change direction as shown on the deck erection drawings.

F. The floor deck supplier shall provide for those framed floor openings shown on the structural drawings. Smaller openings shall be field cut by the trade requiring the opening. Where possible, holes shall be blocked out to eliminate concrete entry. Cutting of the metal deck shall be done only after the concrete has cured. The structural engineer shall be consulted before any hole is cut. Reinforcement, if required, at all openings shall be supplied by others.

G. Field welds or abrasions on floor units or flashings shall be field painted only when the finished installation is permanently exposed to the weather.

H. Concrete containing chlorides from any source shall not be placed on galvanized deck, trench, or activation units.

3.02 CELLULAR FLOOR (ELECTRICAL) SYSTEM INSTALLATION REQUIREMENTS

The cellular floor system including bottomless trench header and preset electrical outlets shall be installed in accordance with the manufacturer's approved electrical installation drawings and the manufacturer's electrical components installation manual.

A. Bottomless Trench Header

1. All factory punched cell deck openings shall be completely bushed with snap-in grommets prior to wire pulling.

2. Trench header assembly and side flute closures shall be fastened to top of cells per manufacturer's standards and installation instructions.

3. Cover assembly shall be leveled using screw adjustment prior to concrete placement. Adjustment or leveling of trench after concrete pour is not permitted..

*4. Trench header shall be set at screed height. Contractor placing the floor fill shall carefully hand finish a minimum of 24" adjacent to Tapway sides, so that top of fill and electrical Tapway and/or devices are flush after concrete has set.

5. Vinyl edging shall be flush with adjacent screed strip and cover during installation. Where floor finish is carpet, the edging strip shall remain in the flush position.

6. After concrete pour and prior to wiring, the adjustable compartment dividers shall be welded to the cells as shown on the installation drawings. The top portion shall then be raised to a location 1/8" below the underside of the trench cover plate and then secured with lock washer and bolt and nut assembly. A compressible tape seal shall be placed on top of the divider to fill the 1/8" gap. Welding of adjustable dividers is optional.

7. Latch clips shall be used to detach and reattach cover plates to trench side rail assembly for ease of access. Direct attachment of cover plates to side rail assembly with screws or other devices is prohibited.

8. Two cover lifting devices shall be delivered to owner for proper cover removal.

B. Preset Box Installation

1. Permanent concrete release agent shall be factory applied both to the inside and outside of “breakout cover”.

2. The concrete fill depth above the preset outlet boxes must be maintained at a 3/4" minimum depth.

* Note: Place this statement in concrete placement Section 03300

3. Standard boxes shall be secured by four integral snap-locks into separate, pre-punched holes in cellular unit dedicated for that purpose. Preset placement by snap locking shall not in any way incorporate the punched cell openings dedicated to wire egress into the presets. Preset placement by snap locking shall not interfere in any way with low voltage grommets to protect wires. Pop-riveting or weld-down of outlet boxes is not required and should be done only in emergency situations.

4. An electronic multi-service box locator shall be supplied to the owner for maintenance purposes.

C. Activation Assemblies - Installation shall be in accordance with manufacturer's installation instructions and the Q-Floor Taproute Owners Manual.

D. To abandon an activated outlet, remove device mounting brackets and activating ring. Place a 1/4" thick steel plate directly onto the top of the outlet box. Grout to a level condition with the top of floor slab using “set” grout. Allow 3 days to cure before loading.

E. Miscellaneous

1. Self-adhesive tape shall be applied over all abutting end joints of cellular units.

2. Wire mesh shall be cut to fit around outlet box “breakout” covers.

3. All connections shall be completed using components of the system as indicated on drawings including, but not limited to, cell feeds and pull boxes. Openings for cell feeds and pull boxes shall be field cut in closet areas as required.

4. Risers are installed under the electrical section of these specifications.

NOTE: These items should be included under the general or special conditions and are to be the responsibility of the General Contractor. They should be cross referenced in this specification.

1. "Protection of Electrical Floor System Trench Header: Equipment and heavy traffic shall not be allowed too roll over trench headers during the entire construction period without first installing ramps over the trench headers. Protection shall be constructed to accommodate imposed loads without transferring the loads to the trench headers. Bent, warped, or damaged cover plates or other components of the trench header system shall be replaced at no expense to the owner or Robertson."

2. "Concrete used over galvanized steel components of the cellular floor system shall not under any circumstances contain chlorides from any source."

3. "Where floor slabs are screeded from diagonally opposite columns to achieve a "dead level" floor, the support beams must be shored to prevent overloading of the floor units and thick slabs at the center of the bay. If deflections are predictable, a deeper preset outlet box can be used in the center bay areas."

4. Cut wire mesh to fit around preset outlet boxes on cellular floor.

5. The concrete fill depth above the preset must be maintained at a 3/4" minimum depth.

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