Read e-book online Estimating for Heating and Ventilating PDF

By J. J. Barton

ISBN-10: 0408000724

ISBN-13: 9780408000727

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310 respectively. Drawings sent in for approval 12. Drawings shall be sent in to the Engineer as required for general approval but approval of such drawings will not exempt the Contractor from his liabilities under the Specification. Record drawings 13. On completion of the works the Contractor must supply SPECIFICATION AND DRAWINGS 31 one complete set of coloured linen drawings showing all the services covered by the Contract. All equipment, panels, radiators, pipes, taps, valves, etc. to be shown in their correct positions together with one set of 1:20 detail drawings of the boiler r o o m plant, including automatic stokers or oil burners and thermostatic controls, cooking, ventilating and all plant included in the Contract or Sub-Contract.

Particulars of the electricity supply are included in the Supplementary Specification. Types, sizes and quality of all switch and fuse gear, including starters, shall be as laid down in the Supplementary Specification and/or shown on the drawings. Ductwork 21. A. Specification D W 121, and the arrangement and layout of ductwork shall be as shown on the drawings. The whole of the ductwork system, including the fans, shall be properly earthed, and where flexible connections are used earth continuity must be maintained by bonding the metal ducts or other equipment.

G. in the boiler room and p u m p room, purpose-made brackets, hangers, or supports must be used. The design of purpose-made brackets must be approved by the Engineer before use. The maximum spacing of pipe supports shall be in accordance with the following table. ) Spacing horizontal runs Spacing vertical runs mm in metres metres mm in metres metres 15 20 25 32 40 50 65 80 100 125 150 i i 1 1-8 2-4 2-4 2-7 30 30 3-7 3-7 40 4-6 5-5 2-4 30 30 30 3-7 3-7 4-6 4-6 4-6 5-5 5-5 15 22 28 35 42 54 63 76 108 133 159 i 1-2 1-8 1-8 2-4 2-4 2-4 30 30 30 3-7 4-6 1-8 2-4 2-4 30 30 30 3-7 3-7 3-7 3-7 3-7 2 2* 3 4 5 6 i 1 Π Ii 2 Ά 3 4 5 6 Labelling 24.

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Estimating for Heating and Ventilating by J. J. Barton

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