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Engineer's Office P.O.Box 12188 Dubai, U.A.E.

GENERAL SPECIFICATION Building Services General Section 30

SECTION 30: BUILDING SERVICES - GENERAL CONTENTS

Clause

Description

Page

30.1

GENERAL ................................................................................................................................ 1

30.2

APPROVED SUB-CONTRACTORS ....................................................................................... 1

30.3

SCOPE OF WORK .................................................................................................................. 1

30.4

OPERATING CONDITIONS .................................................................................................... 2

30.5

ELECTRICITY SUPPLY ........................... ............................................................................... 2

30.6

REGULATIONS ....................................................................................................................... 3

30.7

COMPLIANCE W ITH STANDARDS ST ANDARDS ....................................................................................... 4

30.8

DRAWINGS AND MEASUREMENTS .................................................................................... 4

30.9

CO-ORDINATION .................................................................................................................... 4

30.10

SHOP DRAW INGS .................................................................................................................. 5

30.11

CO-ORDINATION DRAWINGS DRAW INGS .............................................................................................. 6

30.12

CONTRACTOR'S SUBMISSIONS .......................................................................................... 7

30.13

RECORD DRAW INGS AND MANUALS................................................................................. 7

30.14

PRODUCTS ............................................................................................................................. 8

30.15

EXECUTION .......................................................................................................................... 12

30.16

PAINTING AND IDENTIFICATION IDENT IFICATION OF SERVICES ............................................................. 14

30.17

TESTING AND COMMISSIONING - DEFINITIONS ............................................................ 16

30.18

TESTING AND COMMISSIONING - GENERAL .................................................................. 17

30.19

OFF-SITE TESTS .................................................................................................................. 17

30.20

SITE TESTS ........................................................................................................................... 18

30.21

COMMISSIONING ................................................................................................................. 18

30.22

EXPENSES TOW ARDS TESTING AND COMMISSIONING .............................................. 18

30.23

PERFORMANCE TESTING T ESTING .................................................................................................. 18

30.24

DEFECTS LIABILITY PERIOD INCLUDING MAINTENANCE ............................................ 19

30.25

ELECTRIC MOTORS ................................................................................ ............................ 20

EO Standard Specification

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BUILDING SERVICES - GENERAL 30.1

General The specifications outlined in this volume is in addition to Volume 1 Conditions of Contract that also forms part of the Scope Sco pe of Work. W ork. These specifications specif ications shall be read in conjunction with Sections 31 and 32 of this Volume and the drawings.

30.2

Approved Approved Sub-contractors

30.2.1

The Building Services installations shall be sub-let by the Contractor in accordance with the Contract to the following approved specialist Sub-Contractor: Engineer’s Office – Construction & Maintenance Division

(Tel: 04 - 3372068)

In the event EO – CMD is not favourably placed to undertake the works, it shall be sub-let to one of the following approved specialist Sub-Contractors listed below: -

30.2.2

a.

B. K. Gulf L.L.C.

(Tel: 04 - 2858455)

b.

Bilt Middle East L.C.C.

(Tel: 04 - 3439798)

c. d.

ETA M & E Division GECO Mechanical & Electrical Ltd

(Tel: 04 - 2713333) (Tel: 06 - 5331727)

e.

International Electromechanical Services Co (L.L.C.)

(Tel: 04 - 3344003)

f.

Trans Gulf Electro-Mechanical L.L.C.

(Tel. 04 - 266 4661)

The contractor shall submit his tender bid based on the approved list of specialist subcontractors furnished above. Should the contractor wish to carry out all or part of the works by himself or employ specialist sub-contractors outside the furnished list of approved sub-contractors, an alternative tender bid amount should be submitted alon gside the fully compliant main tender bid. All alternative tender bids should be accompanied with an application for approval to the Engineer identifying which part of the works he wishe s to sub-contract, the details of the alternative sub-contractors and compliance statement undertaking full compliance to project specifications and requirements. The acceptance of any of the alternative tender bids is at the Engineer’s discretion. Should the Engineer during the tender tende r evaluation do not approve the alternative subcontractor, the fully compliant base tender bid shall be considered for final evaluation.

30.3

Scope of Work

30.3.1

These specifications specificatio ns relate to the Building Services installations. The Contractor is responsible for the supply, sup ply, co-ordination, installation, testing testi ng and commissioning of all of the Building Services.

30.3.2

The scope of work shall include the whole of the labour and unless otherwise indicated, all the materials necessary to form a 'complete installation' and such


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BUILDING SERVICES - GENERAL 30.1

General The specifications outlined in this volume is in addition to Volume 1 Conditions of Contract that also forms part of the Scope Sco pe of Work. W ork. These specifications specif ications shall be read in conjunction with Sections 31 and 32 of this Volume and the drawings.

30.2

Approved Approved Sub-contractors

30.2.1

The Building Services installations shall be sub-let by the Contractor in accordance with the Contract to the following approved specialist Sub-Contractor: Engineer’s Office – Construction & Maintenance Division

(Tel: 04 - 3372068)

In the event EO – CMD is not favourably placed to undertake the works, it shall be sub-let to one of the following approved specialist Sub-Contractors listed below: -

30.2.2

a.

B. K. Gulf L.L.C.

(Tel: 04 - 2858455)

b.

Bilt Middle East L.C.C.

(Tel: 04 - 3439798)

c. d.

ETA M & E Division GECO Mechanical & Electrical Ltd

(Tel: 04 - 2713333) (Tel: 06 - 5331727)

e.

International Electromechanical Services Co (L.L.C.)

(Tel: 04 - 3344003)

f.

Trans Gulf Electro-Mechanical L.L.C.

(Tel. 04 - 266 4661)

The contractor shall submit his tender bid based on the approved list of specialist subcontractors furnished above. Should the contractor wish to carry out all or part of the works by himself or employ specialist sub-contractors outside the furnished list of approved sub-contractors, an alternative tender bid amount should be submitted alon gside the fully compliant main tender bid. All alternative tender bids should be accompanied with an application for approval to the Engineer identifying which part of the works he wishe s to sub-contract, the details of the alternative sub-contractors and compliance statement undertaking full compliance to project specifications and requirements. The acceptance of any of the alternative tender bids is at the Engineer’s discretion. Should the Engineer during the tender tende r evaluation do not approve the alternative subcontractor, the fully compliant base tender bid shall be considered for final evaluation.

30.3

Scope of Work

30.3.1

These specifications specificatio ns relate to the Building Services installations. The Contractor is responsible for the supply, sup ply, co-ordination, installation, testing testi ng and commissioning of all of the Building Services.

30.3.2

The scope of work shall include the whole of the labour and unless otherwise indicated, all the materials necessary to form a 'complete installation' and such


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commissioning and testing as are prescribed in subsequent clauses and as may otherwise be required to give an effective and safe working installation. 30.3.3

The words 'complete installation' above shall mean not only the major items of plant and equipment covered by the specifications detailed in clause 30.1 'General' but all incidental sundry su ndry components necessary nece ssary for the complete execution execution of the Works and for the proper operation of the installation, with their labour charges, whether or not these sundry components are mentioned in detail in the Tender Documents.

30.3.4

The words 'as indicated', 'where indicated' or 'unless otherwise otherwise indicated' refer to items or requirements which are or may be given elsewhere in the Tender Documents.

30.3.5

The project development has been planned in two Phases, the extent of which has been set out in the drawings. Phase – 1 : Phase – 2 :

Shell & Core Construction. Interior Fit-out Construction.

Under Phase –1 of the project, all plant elements and primary distribution elements of building services shall be supplied, installed, tested and commissioned. Under Phase –2, the secondary seconda ry distribution of building services shall be carried out in co-ordination with Interior Design and to suit the scheme to be developed by the Interior Designer. The Building Services Contractor shall, however, be responsible for both the phases and setting and re-adjusting the systems on completion of interior fit-out works. The air conditioning system and electrical electric al power systems shall be made operational prior to commencement of interior fit-out works and the contractor shall operate and maintain the operating systems throughout the Phase – 2 works. The formal taking over of the Building Services installations shall be effective subsequent to completion of Phase – 2 works. A supplementary “Taking Over Certificate – Building Services Installations” shall be obtained by the contractor from the Engineer/Client which shall form fo rm part of the completion documents of the project.

30.4

Operating Conditions It is a requirement for f or all equipment, app apparatus, aratus, materials and machines to be suitably rated for the local adverse ambient conditions which are as follows: Minimum ambient temperature in winter Maximum ambient conditions in summer Maximum relative humidity

: : :

8ºC 50ºC 100%RH

30.5

Electricity Supply

30.5.1

Unless otherwise indicated all apparatus and wiring shall be suitable for use with a 3 phase, 4 wire, 400/230 400/23 0 volt, 50 Hz earthed neutral system with an overall power factor of not less than 0.9 lagging.

30.5.2

Unless otherwise indicated, all electrical equipment shall be suitable for use in ambient temperatures of 50 deg. C. Equipment shall be proof against atmospheric corrosion, including that of saline air and materials shall not be susceptible to mould growth or


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attack by vermin.

30.6

Regulations

30.6.1

Meet the requirements of the General Conditions of Contract.

30.6.2

Meet the requirements and recommendations of all authorities having jurisdiction.

30.6.3

All work shall be carried out in accordance with the relevant Safety Regulations applicable to the Site.

30.6.4

The installations shall comply with all relevant statutory instruments and regulations current at the date of Tender (unless stated otherwise in this Specification or on any Drawing) as follows: -

AMCA ANSI ARI ASHRAE ASME ASTM AWW A BS BSCP BS7671 CIBSE DEWA DM HVCA IEE Local Local LPGA NFPA SMACNA UL UPC

Air Moving & Conditioning Association American National Standards Institute Air Conditioning & Refrigeration Institute American Society of Heating, Refrigeration and Air Conditioning Engineers American Society of Mechanical Engineers American Society of Testing and Materials American Water Works Association British Standards British Standard Code of Practice Requirements for Electrical Installation Chartered Institute of Building Services Engineers Dubai Electricity and Water Authority Dubai Municipality Heating and Ventilating Contractors Association Institute of Electrical Engineers - Regulations for Electrical Installations - 16th Edition Local Building Codes Local Fire Codes and Standards - Fire Safety Regulations of the Civil Defence Authorities Liquid Petroleum Gas Association National Fire Protection Association Sheet Metal & Air Conditioning Contractors National Association Underwriters Laboratories Inc Uniform Plumbing Code

30.6.5

Do not reduce the quality of work specified and/or shown on drawings because of regulatory requirements. Where W here the contractor finds apparent appa rent discrepancies between between these drawings and specifications and the above requirements, the contractor shall notify the Consultant/Engineer Consultant/Enginee r in writing and obtain clarification before before proceeding with the work.

30.6.6

Give all necessary notices, obtain all permits and pay for all governmental fees, taxes and other costs in connection with the work. File all necessary Contract Documents,


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prepare submission and obtain approval of regulatory bodies having jurisdiction.

30.7

Compliance with Standards The equipment and installations shall comply with all relevant British Standards and Codes of Practice. In the event of a discrepancy between the specifications and any British Standard or Code of Practice, this Specification shall be followed. Throughout the execution of the works, the Contractor shall be responsible for ensuring compliance with the requirements listed in this specification and shall notify the Engineer of any infringements which directly or indirectly detract from the safe and satisfactory operation of the installation(s) whether or not such infringements relate to the association works of others. Provide new materials and equipment of proven design and quality. Provide current models of equipment equipmen t as specified of proprietary manufacture, having agency or trade licence in United Arab Emirates. Workmanship and installation methods shall conform to the best modern practice. Employ skilled skille d tradesmen to perform work under the direct supervision supervision of fully qualified qualified personnel. Install equipment equ ipment strictly in accordance acco rdance with manufacturer’s manufacturer’s written recommendation recommendations. s. Meet ASHRAE, CIBSE and other industry standards in the sel ection and provision of equipment, materials, pipe and duct components and systems. Meet the additional selection, sizing and performance criteria specified in this specification.

30.8

Drawings and Measurements Drawings show general design and arrangement of M+E system installation, and diagrammatic. Obtain further clarification of Drawings or Specifications from Consultant/Engineer prior to installation. Drawings do not indicate indic ate exact Architectural Archite ctural or Structural features. fea tures. Examine Examine drawings drawings prior to laying out. Do not scale drawings to order materials. Take Ta ke field measuremen measurements ts where possible to obtain confirmation from Consultant/Engineer of all dimensions required before ordering major plant items in advance of construction. Clarify roughing-in requirements of equipment, which is not part of this specification before proceeding. Leave areas clear where space is indicated as reserved for future equipment and where space is required to maintain equipment. eq uipment. Maintenanc Maintenance e clearance, in addition addition to to providing for servicing of equipment, shall allow for removal and reinstallation of replaceable items such as motors, coils and filters.

30.9

Co-ordination


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30.9.1

The Contractor shall work from the drawings and specifications specifica tions provided for Tender purposes by the Engineer. These drawings show the design intent having taken into account the buildings and all services so that plant rooms, services voids and ducts are adequate for the accommodation of plant and services.

30.9.2

Examine the site and all Contract Documents prior to bid submission. No allowance will be made for any difficulties encountered due to any features of the building, methods of construction, cons truction, site or surrounding public and private property which existed up to the bid close.

30.9.3

The Contractor shall be responsible for co-ordinating the works and shall produce such drawings as are necessary for co-ordination and for the proper installation of plant and services. These drawings shall take into account. (a) (b) (c) (d)

The final choice of equipment. The inter-relationship of all engineering systems servicing the buildings and their relationship to the buildings. Accepted good practice for the installation of Mechanical and Electrical systems. In order to achieve detailed co-ordination the Contractor may depart from the Engineer's drawings subject to the approval of the Engineer.

30.9.4

Identify and resolve interference problems prior to prefabrication and installation of equipment. Submit interference drawings for review upon Consultant/Engineer’s request.

30.10

Shop Drawings

30.10.1

Within Withi n two weeks of the instruction to commence the Contract the Contractor shall submit to the Engineer for approval the following shop drawings: (a) (b) (c) (d)

Builders work drawings Detailed plant room drawings Detailed building services layout and fabrication drawings Purpose made diagrams detailing separately all the composite electrical circuit and wiring layouts.

Scale 1:100 Scale 1:20 Scale 1:100

Shop drawings of all equipment and items made 'off Site'. All drawings must be approved by the Engineer within four weeks of signing the contract or as directed by the Consultant/Engineer. 30.10.2

Shop drawing shall be A1 size, all units and dimensions in SI units, symbols shall follow the same pattern and Legend as used on the tender drawings.

30.10.3

Shop drawings shall be in English and include complete data on the equipment including physical dimensions and other information required for installation, performance capabilities and limitations, and schedules indicating locations where more than one type of an item is to be used.

30.10.4

If abbreviations are employed for the designation of components, an integral schedule shall be provided on the drawings to explain the meanings of the abbreviations.


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