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Construction Contract: Architect's Roles and Rates for Various Works, Study Guides, Projects, Research of Construction

The roles and responsibilities of an architect in a construction contract, including determining the amount and quality of work, deciding disputes, and the inclusion of various costs in the unit and lump sum prices. The document also provides rates for concrete work, block work, stonework, and carpentry and joinery work, detailing what is included in each rate.

Typology: Study Guides, Projects, Research

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E. PREAMBLES and SPECIFICATIONS
Renovation and Rehabilitation of
The Kindergarten of
The Jerusalem Princess Basma Center
GENERAL CONDITIONS OF CONTRACT
In relation to tender No. (CATD-A150401)
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E. PREAMBLES and SPECIFICATIONS

Renovation and Rehabilitation of

The Kindergarten of

The Jerusalem Princess Basma Center

GENERAL CONDITIONS OF CONTRACT

In relation to tender No. (CATD-A150401)

PREAMBLES and SPECIFICATIONS

Table of Contents

1. Introduction

2. Interpretation of Contract Documents

3. Bills of Quantities

4. Pricing

5. Quantities

6. Items in Bills of Quantities

7. Measurement

8. Descriptions

9. Abbreviations

10. Definitions

11. Protection

12. Shop Drawings / coordinated drawings

13. As Built Drawings.

14. Cutting and Patching

15. Excavation

16. Concrete Work

17. Block-work

18. Plastering

19. Stonework

20. Carpentry and Joinery Work

21. Metal (Steel and Aluminum) Works.

22. Tiling, Flooring and Marble

23. Roof Finishes

24. Mechanical Work

25. Electrical Work

26. Paintings and Decorating

27. Asphalt Works

28. Demolitions and Alterations

4. Pricing: The Contractor shall satisfy himself as to the meaning of every item in the Bills of Quantities and the rates and prices inserted by him shall cover all Works required by the Contract Documents. All costs in connection with the proper and successful construction, completion and maintenance of the Works including, but not limited to, completion of all temporary works, furnishing all materials, equipment, supply and appurtenance, providing all construction Plants, equipment, tools, sampling, testing, profits, overheads, charges, provision of guarantees, performing all necessary labor and supervision and other cost of whatsoever nature necessary to fully complete the Works, shall be included in the unit and lump sum prices called for in the bills of Quantities. All Works not specifically set fourth as a pay item in the Bills of Quantities shall be considered as subsidiary obligation of the Contractor and all costs in connection therewith shall be included in the Priced Bid. Prices shall be deemed to include for all straight ranking and circular cutting and consequent waste.

  1. Quantities: All estimated quantities stipulated in the Bills of Quantities or other Bid Documents are approximate and are to be used only;

 as a basis for estimating the probable cost of the work and  For the purpose of comparing the bids submitted for the work.

The actual amount of work done under each unit price items may differ from the estimated quantities. The basis of payment for work will be the actual quantities. The Contractor agrees that he will make no claim for damages, anticipated profits or otherwise on account of any difference between the amounts of work actually performed and the estimated amount.

6. Items in Bills of Quantities Such items are the subject of re-measurement of completion in accordance with Clause 56 of the General Conditions of Contract. Quantities given in the Bills are based upon measurement from the Contract Drawings and Specifications. 7. Measurement Metric measurements and weights have been used throughout the Bills of Quantities. Work is measured net as fixed in position and each measurement is taken to the nearest centimeter. Fractions of a centimeter less than half are disregarded and all other fractions are regarded as whole centimeters. This principle shall not apply to dimensions stated in item descriptions. Where minimum deductions of voids are dealt with they refer only to openings or voids, which are wholly within the boundaries of measured areas. Openings or voids, which are at the boundaries of measured areas, are always the subject of deduction irrespective of size. 8. Descriptions The order of stating dimensions in descriptions is generally in the sequence of Length, Width and Height. Unless otherwise stated in the Bills of Quantities or herein, all measured items are deemed to include supply and fix in place complete, thus all measured items shall include all incidentals to complete the work in a proper manner such as but not limited to the following: ( a ) Labor.

( b ) Materials, including all cost in connection herewith ( e.g. conveyance, delivery, unloading, storing, handling, lowering into position and the like ). ( c ) Customs and import duties as applicable, insurance, levies and the like. ( d ) All shop treatment of materials ( e.g. Preservation of timbers, galvanizing, priming, chrome plating, stove enameling, anodizing and the like, pipe wrapping, coatings, etc.). ( e ) Fitting and fixing materials in position including all necessary fixing devices and materials. ( f ) Commissioning & use of plant. ( g ) Disposal of waste of material. ( h ) Square, raking or curved cutting. ( i ) Work in volumes, areas and length of any size, no separate items being measured for isolated work or work in small quantities, short length, narrow widths, etc.

Junction between straight, raking and curved work are in all cases included with the work in which they occur.

Certain items are referenced directly to detail drawings to eliminate detailed description. All such reference includes all work to execute the detail.

Where Specification clauses and / or detail drawing numbers are referred to in a description such information is provided for convenience only and the Contractor is to note that all other relevant Specification requirements and relevant drawings and details are to be taken into account.

  1. Abbreviations. The following abbreviations are used throughout the Bills of Quantities.

mm Millimeter cm Centimeter M.R. Linear meter M.S. Square meter M.C Cubic Meter L.S. Lump Sum NO. Number Kg. Kilogram Ref. Reference

10. Definitions  The terms “include", “is included “, “including “, and similar, are used herein to indicate that the items and are not specifically mentioned in the descriptions but the costs of which are to be included in the measured items.  Such references are not comprehensive and are for convenience only and the Contractor is to note that all relevant requirements of the Specifications and Drawings are to be taken into account in the measured items.  The word “Site” used in the Bills of Quantities means the whole of the areas within the Contract limit lies for this Contract as shown on the Contract Drawings. With reference to the clearance of debris, rubbish, trash, excavated material and the like the definition is extended to include the whole of the site.  The word “ditto” used in the Bills of Quantities means the repetition of all or part of the preceding item as applicable to complete the sense of the item.

  1. Co- ordination with all local authorities to facilitate the works, removal of obstacles or for diversion of roads, services, etc. ….is the contractor’s responsibility and is included in his rate.
  2. Excavation shall be measured by cubic volume. The volume shall be calculated by taking the area of the slab, footing, base and the like and multiplying by the vertical depth. No allowance will be made for increase in bulk after excavation. No allowance will be made for working space. 9. Hard-core beds shall be measured superficially, over consolidated depth including finishing, to a maximum depth of 15cm or as stated clearly in the Bills of Quantities. Filling required below this 15cm. depth is intended to be of suitable materials from the excavations and no extra will be paid for hard-core used in lieu thereof.

B) Rates:

  1. Rates for excavation shall include for: a) Removal of all site obstacles and clearing the site of all rubbish, debris, shrubs, trees, bushes, plants, fence and the like including grubbing up roots and foundations prior to the commencement of the Works. b) Excavation to any depth. c) Excavation in any material whatsoever found, including rock. d) Excavating circular on plan. e) Allowance for working space. f) Excavating below water-table level. g) Keeping excavations clear of water. h) Leveling, ramming, trimming and grading bottoms of excavations in rock. i) Planking and strutting. j) Selecting Suitable material from the excavations and returning, filling watering and ramming in layers around foundations and to underside of hard-core beds including all multiple handling and transport about the site.

(2) Rates for hard-core beds shall include for: (a) Trimming and leveling ground under. (b) Watering, ramming and consolidation. (c) Loss of bulk in consolidation. (d) Finishing top surface to receive concrete, paving and the like.

16. Concrete Work

(a) Measurements

  1. Concrete works shall be measured net as per Drawings or as specified by the Architect.
  2. Each item of concrete works shall be measured in the unit described in the Bills of Quantities.
  3. All recesses, openings or any other space not actually filled with concrete shall be deducted in calculating the volume or the area for payment.
  1. Any extra concrete, which was cast due to the Contractor’s negligence and is not marked specifically on the Drawings, shall not be measured for payment.
  2. Suspended concrete slabs shall be measured superficially. Drop beams are included in this measurement and no separate item for drop beams is provided.
  3. In case of using masonry exterior walls measurements for the suspended reinforced concrete slabs will be made from the centers of these walls.
  4. The height of columns shall measure excluding the depth of beams, slabs and the like.
  5. Prices for reinforced concrete elements shall include reinforcement.
  6. Prices for ribbed slabs shall include reinforcement and hollow blocks and no separate item for blocks will be provided.

(b) Rates (1) Rates for concrete work shall include for:

  1. Labor
  2. Supply and storage of cement,
  3. Supply and storage of aggregates and water ,
  4. Mixing and placing in position,
  5. Packing and tamping around reinforcement ,
  6. Vibrating,
  7. Grading, tamping and trowelling,
  8. Installing of form work, shutters and supports,
  9. Supplying reinforcement and storing on site including cutting, bending and fixing in position and providing all tying wire, spacers, shop drawings and testing, 10.Finish to exposed faces , 11.Curing, 12.Work of any cross-sectional area , 13.Work at any height , 14.Curved work , 15.Forming mortises and grouting in , 16.Forming grooves, throats, holes, chases, rebates, chamfers, splayed angles, moldings and the like, 17.Casting in or cutting and pinning plugs, holdfasts, brackets, and the like. 18.Hoisting to any height and bedding, jointing and pointing, 19.Wall ties. 20.Hollow blocks for ribbed slabs including supply, storage, laying and arranging. 21.Taking samples, performing any laboratory tests that may be required by the Architect and providing certificates of test results.

17. Block-work

(A) Measurements One) Block work shall be measured net in squared meters. No deductions will be made for voids or openings of less than 0.5 square meters in area.

Two) Thickness given refers to the thickness shown on the drawings and no allowance will be made for any additional thickness due to uneven or bad workmanship.

Two) Thickness given refers to the nominal thickness or the thickness shown on the Drawing. No allowance will be made for any additional thickness due to uneven or bad workmanship or to variations in the thickness of the stone.

Three) Rubble stone walls shall be measured by volume.

Four) Stonework facing for drop beams of the suspended slabs will be measured same as the item of stone walls unless otherwise is specified in the Bills of Quantities.

(B) Rates Rates for stonework shall include for:

One)Labor, Two)Supply and storage of cement, Three)Supply and storage of stone, aggregates, water and other materials, Four)Shaping of the apparent faces of stones as per Drawings and the Instructions of the Architect, Five)All special pieces such as corners, jambs, pieces around windows and doors and the like, Six) Fabricated wire mesh, dowels, hangers and all tying and fixing tools for stone cladding works, Seven)Laying stones including coursing, bonding, and all mortar joints, Eight)Work of all classifications in any location, Nine)Face or surface finishing including all openings, returns, reveals and the like, Ten)Rough and fair cutting, Eleven)Tying to backing material, Twelve)Concrete and block backing where included with stonework item, Thirteen)Cutting or leaving holes, chases, grooves, mortices, sinkings and the like, and making good , Fourteen)Cutting and pinning or building in ends of lintels, steps, timbers, rails, brackets, steel sections and the like, and making good. Fifteen)Pointing including cleaning of stones, scaffolding and dismantling the same and all incidentals. Sixteen) Lintels and other reinforced concrete elements including reinforcement except those elements specified in separate items in the Bills of Quantities.

20. Carpentry and Joinery Work

(A) Measurements One) Sizes of timber given in the Bills of Quantities are finished sizes and shall be as per Drawings, Two) Sizes of doors and other items mentioned in the Bills of Quantities shall allow for tolerance to suit the structural openings as per Drawings, Three) Wooden doors and pair of doors shall be measured in number or in squared meters for the structural opening or as mentioned otherwise in the Bills of Quantities, Four) Blackboards shall be measured in number or in squared meters as mentioned in the Bills of Quantities. Five) Wall protection wooden rails shall be measured in linear meter, Six) Cloth hangers and hanger wooden base shall be measured in number or in linear meter as stated in the Bills of Quantities.

(B) Rates Rates for carpentry and joinery work shall include for:

One) Labor, Two) Shop drawings, Three)Any length of timber , Four) Joints in the running length of timber , Five) Raking, curved or circular work and labors , Six) Frames, architrave, chalk holders and other holders and kick plates, Seven)Allowance for plastering and tiling and the like, Eight) Forming holes, angles, ends, mitres, rebates, splayed edges, grooves, chamfers, scribed edges, rounded edges, rounded corners, notches, sinkings, fitted ends, far ends and the like, Nine) Cutting and fitting around obstructions, Ten) Forming moldings, Eleven)Nosing, bed moulds, margins, and the like, Twelve)Facing and edging to blackboard , Thirteen)Bedding and painting, Fourteen)Grounds, blockings and backings, Fifteen)Plugging concrete, blockwork, and stonework , and making good, Sixteen)Ironmongery including cylindrical locks, handles, stoppers, screws, temporarily fixing, re-fixing, oiling and adjusting, Seventeen)Providing two keys for each lock including tagging, Eighteen)Hardware including nails, screws, dowels, cramps and the like , Nineteen)Steel legs, brackets, bearers and other supports including painting, Twenty)Glass and glazing including cutting to size and putty, Twenty-one)Preparing surfaces to receive finishes, Twenty-two)Painting, varnishing, polishing, oiling, and the like, to any area or width in any location including work in multicolor and cutting in edges.

21. Metal (Steel and Aluminum) Works

(A) Measurements Metal works shall be measured in number or in squared meters as stated in the Bills of Quantities.

(B) Rates (a) Rates for metalwork shall include for :

One)Labor, Two)Preparing shop drawings, Three)Cutting, Four)Assembling, Five)Welding grinding and joining, Six)Drilling, countersinking, screwing, bolting and riveting, Seven)Bedding and pinting, Eight)Frames, including galvanized steel frames for Aluminum windows and architrave, Nine)Lugs, plugs, holdfasts and the like, Ten)Gaskets, sashes, double weather strips and external and internal silicon filling around frames,

(2) Rates for floor tilling: In addition to the related items stated above the rates for floor tiling shall also include:

One)Supply, store and cure of tiles, Two)Bedding and lining in cement and sand mortar Three)Sand or concrete filling as required by the Specifications, Four)Pointing and grouting with white cement, Five) Forming holes, Six)Forming grooves. Seven)On site mechanical grinding and polishing.

(3) Rates for wall tilling: In addition to the related items stated above the rates for wall tilling shall also include:

Eight)Supply, store and cure of tiles Nine)Plastering, Ten)Cutting and patching around the services and other openings, Eleven)Mortar, Twelve)Purpose made tiles including rounded edge tiles and bull nosed tiles, Thirteen)Grouting, grinding, and cleaning.

23. Roof Finishes:

(A) Measurements One) All finishes shall be measured superficially net unless other wise stated clearly. Two) All finishes, except triangular shaped fillets and cement and sand lining to gutters, shall be measured superficially. Three) Triangular shaped fillets and cement and sand lining to gutters shall be measured run, unless otherwise stated clearly.

(B) Rates (a) Rates for cement and sand work shall include for:

  1. Supply and storage of cement (or otherwise shown in Appendix “B”).
  2. Supply and storage of aggregates and water,
  3. Mixing,
  4. Hacking concrete, applying cement slurry or raking out joints of blockwork to form key,
  5. Application to any surface,
  6. Any width or area,
  7. Finish to surface,
  8. Finish to falls, cross falls and currents,
  9. Forming bays including joints, 10.Finish to edges and arrises, 11.Making good around steel sections, pipes, tubes, bars, brackets, outlets, and the like, 12.Ends, intersections, ramps, and the like, on filletes,

(b) Rates for waterproofing shall include for :

  1. Preparation of surface,
  2. Any area or width,
  3. Cutting in edges.
  4. Over laps, priming and treatment at the corners and floor drains.
  5. Dressing over parapets and stub columns including forming groove to receive edge of plasticised bitumen membrane and sealing with elastic sealer.

(c) Rates for roof sheeting shall include for:

  1. Side and end laps, Fittings including bolts, hook bolts, screws and washers,
  2. Sheets of any width or length.

24. Mechanical Work:

Section 00-General Conditions

1- Codes and Standards

The works shall be carried out in accordance with: a. Latest edition of “ British Standard Code of Practice “ C,P.310: Water Supply. b. latest edition of “British Standard Code of Practice “ C.P. 304: Sanitary Pipe work above Ground. c. Latest edition of “ British Standard Code of Practice “ C.P.305 Sanitary Appliances. d. All other applicable British Standard Specifications and codes of practice (Hereinafter referred to as B.S. and C.B. respectively). e. ASME American Society of mechanical Architects. f. ASTM American Society of Testing materials g. The Architect’s Instructions.

2- Extent of the Works

The works include-unless otherwise specified-the supply, installation, testing and commissioning , and delivering up clean and in working order the installations shown on the drawings and specified in the specifications and bill of quantities including all details such as :

  • Hot and cold water piping , and drain piping with all necessary fittings , valves , insulation, coating , painting , color code identification as specified.
  • The specified sanitary fixtures, with all necessary fittings and accessories. No less quality than the specified units shall be accepted. (And the Architect is the only authorized person to decide whether any proposed alternative in of better quality or not).
  • Supply of three complete original catalogues for every item in the project.
  • Supply of two plastified copies of the maintenance and operation manual for all items judged to bead that by the Architect, for the item individually, or for a complete system when a system is composed of more than one item.
  • The Contractor shall undertake all modification demanded by the authorities in order to comply with current regulations and produce all certificates, if any, from the authorities without extra charge. Only if the regulations where issued after the signature of contract, and resulting in additional permanent works and supplies , the Contractor will be reimbursed for those , after reducing any sums , that are not marited, from the original prices.

of another manufacturer’s products for the work, and the Architect’s decision concerning equal product is final.

6. CONTRACTOR PRICE INCLUDED IN UNIT PRICE : A. Delivery to the Site. B. Product handling at site, including unloading, uncrossing and storage. C.. Protection of product from elements and damage. D. Labor for installation and finishing including the removal of waste material to approved sites by local Authorities. E. Other expenses required to complete installation. F. All Required Testing , Adjusting , and Calibration. G. All Documents Required in mechanical specifications. H. Architecting and Administrative Work. I. All works required in section ( 01 ). J. Contractor overhead and profit.

SECTION 01
BASIC MECHANICAL REQUIREMENTS
  1. The air conditioning system is based on the following design conditions :
    • (^) Outside summer conditions : 35C of D.B.T. & 26C of W.B .T.
    • (^) Inside summer conditions : 24C of D.B.T. & 50% of H.R.
    • (^) Outside winter conditions : 0C of D.B .T.
    • Inside winter conditions : 21C of D.B .T.
  2. Code-required features shall be incorporated into the finished work, whether specifically shown on the drawings or not, and with costs included in the bid.
  3. Contractor shall promptly notify the Architect of any ambiguity, inconsistency, errors or possible code violation which may become apparent during the bid period. The Architect will provide a written interpretation. Verbal interpretations will not be considered as binding.
  4. Install equipment, materials and piping systems to provide required access for servicing, maintenance, and general inspection. Co-ordinate the final location of concealed equipment and devices requiring access with final location of required access panels and doors. Allow ample space for removal of all parts that require replacement or servicing. Piping systems shall not block service access of any nature, such as filter removal, equipment access panels, cleaning of tubes, and similar items.
  5. Co-ordinate mechanical equipment and materials installation with other building components.
  6. Sequence, co-ordinate, and integrate installations of mechanical materials and equipment for efficient flow of the Work. Give particular attention to large equipment requiring positioning prior to closing-in the building.
  7. Co-ordinate the cutting and patching of building components to accommodate the installation of mechanical equipment and materials.
  8. Where mounting heights are not detailed or dimensioned, install mechanical services and overhead equipment to provide the maximum headroom possible.
  9. Install mechanical equipment to facilitate maintenance and repair or replacement of equipment components. As much as practical, connect equipment for ease of

disconnecting, with minimum of interference with other installations.

  1. Co-ordinate the installation of mechanical materials and equipment above ceilings with suspension systems light fixtures, and other installations.
  2. All materials, equipment and apparatus installed on the project shall be installed in strict accordance with the manufacturer's printed instructions. Where specifically noted, the manufacturer, or his authorised representative, shall certify, in writing, to the Owner Architect, that the installation has been made in accordance with such printed requirements.
  3. Prepare and submit a set of co-ordination drawings showing major elements, components and systems of mechanical equipment and materials in relationship with other building components. Prepare drawings to an accurate scale of 1:100 or larger. Indicate the locations of all equipment and materials, including clearances for installing and maintaining insulation, servicing.
  4. Lighting fixtures shall have precedence over air grilles and diffusers.
  5. Do not endanger or damage installed Work through procedures and processes of cutting and patching. no structural member may be cut without the written approval of the Architect.
  6. Arrange for repairs required to restore other works because of damage caused as a result of mechanical installations.
  7. No additional compensation will be authorised for cutting and patching Work that is necessitated by ill-timed defective, or non-conforming installations.
  8. Perform cutting , and patching of mechanical equipment and materials required to: A. Uncover Work to provide for installation of ill-timed Work;

B. Remove and replace defective Work;

C. Remove and replace Work not confirming to requirements of the Contract Documents;

D. Remove samples of installed Work as specified for testing;

E. Install equipment and materials in existing structures;

F. Upon written instructions from the Architect, uncover and restore Work to provide for Architect observation of concealed Work.

  1. Provide permanent operational data nameplate on each item of power operated mechanical equipment, indicating manufacturer, product name, model number, serial number, capacity, operating and power characteristics, labels of approval agencies (U/L, PDI, ARI, NFPA, etc.) and similar essential data. Locate nameplates in an accessible location.
  2. Deliver products to project properly identified with names, mode numbers, types, grades, compliance labels, and similar information needed for distinct identifications; adequately packaged and protected to prevent damage during shipments storage, and handling.
  3. Store equipment and materials at the site, unless off-site storage is authorised in writing. Protect stored equipment and materials from, damage.
  4. Include the following information in the product date catalogue:

having accessories as scheduled.

  1. Indoor unit features : a. The cabinet is made of repainted sheet metal b. Double - inlet centrifugal fans with forward curved blades, statically and dynamically balanced, and factory-set for nominal airflow. The fans are driven by three-phase motors with adjustable belt-pulley transmission. c. Washable air filters.
  2. Outdoor unit features: a. The cabinet is made of repainted sheet metal , specially , specially suitable for use outdoor. b. Single-phase axial fans for quiet operation with generous service space. Motors have internal thermal protection. c. Refrigerant - to-air heat exchangers are manufactured from high quality copper tubing , mechanically expanded into pre-treated aluminium fins and offer high corrosion resistance. d. Hermetic reciprocation compressors are mounted on shock absorbers for vibration
    • free operation, and include internal mufflers and thermal protection
  3. control system : Electronic, with digital display touch panel wall mounted control. includes: 3 min compressor start delay, cooling and heating freeze protection, fan stop on heating mode, three speeds indoor fan +auto , three operating modes - cooling , heating , ventilation + auto. on/off timer, fault alarm.
  4. Examine areas and conditions under which units are to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer.
  5. Install units as indicated, and in accordance with manufacturer's installation instructions.
  6. Install piping as indicated.
  7. Protect units with protective covers during balance of construction,
  8. Verify that electrical wiring installation is in accordance with manufacturer’s submittal. Do not proceed with equipment start-up until wiring installation is acceptable to equipment installer.
SECTION 03 - POWER VENTILATORS
  1. Submit manufacturers technical data for power ventilators including specifications, capacity ratings, dimensions, weights, materials, accessories furnished, and installation instructions.
  2. Except as otherwise indicated, provide standard prefabricated power ventilator units of type and size indicated, modified as necessary to comply with requirements, and as required for complete installation.

Centrifugal fan, direct or belt driven as scheduled Provide aluminium weatherproof housings. Provide permanent split capacitor type motor for direct driven fans ( pH); capacitor start, induction run type motor for belt driven fans (3pH).

Housing Design: Hooded dome type.

  1. Provide factory wired non-fusible type disconnect switch at motor in fan housing. Provide thermal overload protection in fan motor. Provide conduit chase within unit

for electrical connection. Provide ventilated motor compartment.

Bird Screens: Provide removable bird screens, 1/2' mesh, 16 ga aluminium or brass wire.

  1. Axial Wall Ventilators: Provide axial glass mounted type power ventilators of type, size, and capacity as scheduled, and as specified herein.

Axial fan, direct or belt driven as scheduled. Provide spun aluminium weatherproof housing. Provide permanent split capacitor type motor for direct driven fans, capacitor start, induction run type motor for belt driven fans.

Provide factory wired non-fusible type disconnect switch at motor in fan housing. Provide thermal overload protection in fan motor. Provide conduit chase within unit for electrical connection.

Bird Screens: Provide removable bird screens 1/2” mesh, 16 ga aluminium or brass wire.

Dampers: Provide automatic louvered damper.

  1. Except as otherwise indicated or specified, instant ventilators in accordance with manufacturer's installation instructions and recognised industry practices to insure that ventilators serve their intended function.
  2. Co-ordinate ventilator work with work of roofing, and glazing necessary for proper interfacing.
  3. Solder bottom Joints and up 2” of side Joints of duct under roof ventilator to retain any moisture entering ventilator.
  4. Verify that electrical wiring installation is in accordance with manufacturer's submittal. Verify proper rotation direction of fan wheels. Do not proceed with equipment start up until wiring installation is acceptable to equipment installer.
  5. Remove shipping bolts and temporary supports within ventilators. Adjust dampers for free operation.
  6. Testing: After installation of ventilators has been completed, test each ventilator to demonstrate proper operation of units at performance requirements specified. When possible, field correct malfunctioning units, then retest to demonstrate compliance. Replace units which cannot be satisfactorily corrected.
SECTION 04 - METAL DUCTWORK
  1. Comply with ASHRAE’s "HVAC Duct Construction Standards, First Edition, 1985, for fabrication and installation of metal ductwork,
  2. Submit scaled layout drawings of metal ductwork and fittings including, but not limited to, duct sizes, locations, elevations, and slopes of horizontal runs, wall and floor penetrations, and connections, Show interface and spatial relationship between ductwork and proximate equipment. Show modifications of indicated requirements made to conform to local shop practice, and how those modifications ensure that free area, materials, and rigidity are reduced.