Estimating for Heating and Ventilating by J. J. Barton PDF

By J. J. Barton

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The stoker manufacturer shall supply and fit all thermostats, time switches, p r o g r a m m e controls, auto-starters, and electrical isolating switch and fuse gear, mentioned in the Supplementary Specification. Electric wiring from the isolating switch fuse in the boiler 60 SPECIFICATION AND DRAWINGS room to starter, to motor, and to thermostatic and time controls, will be carried out by the Electrical Contractor under a separate contract, unless specified otherwise or covered by a Provisional Sum in the Supplementary Specification.

General clauses 1 to 10,12 to 14, and 16, in Section A shall apply. S. 749, and C P . 3000. Clean Air Act 2. The stoker maker must give a certificate or other written assurance that the machine has been designed to burn bituminous coal at the firing rate stated in the maker's catalogue without causing smoke and furthermore must guarantee in writing that the machine satisfies in every way the requirements of the Clean Air Act current at the time of tendering. Extent of work 3. The Contractor shall include in his tender for the supply, delivery to fixing position in the boiler room, and complete erection and setting to work of an automatic underfeed bituminous coal stoker or stokers, as detailed in the Supplementary Specification and/or shown on the drawings.

All motors shall be continuously rated. Single-phase motors shall be wound for 230/250 volts, 50 hertz, and three-phase machines for 400/440 volts, 50 hertz.

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