12/07/1936 Board of Public Works Minutes

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RETURN LINE IN BASEMENT The return lines near the basement floor shall be raised about 51011 from the floor. All return lines ahall be re -connected when main return line is in place. Connect the main returns to the Receiver and Pump hereinafter specified. "VACUUM BOILER FEED PUMP AND RECEIVER" Place in basement where directed, one Vacuum Boiler return pump and receiver of 3,000 feet capacity. -This to be driven by electric and of the Economy, the Worthington, the Yoeman Brothers make or equal. Connect same to the electric supply as per building code. Furnish all necessary switches that may be required by the Manufacturer and,Electrical Code. This pump is to supply the boiler with the condensation from the entire heating system and shall be provided with all necessary piping fittings and valves necessary and required by the State Boiler Inspector. BOILER Furnish and place in basement just east of the present boiler. One cast iron boiler of 2,731 feet capacity as rated by the Heating, Piping and Air Conditioning Contractor's Association. Make of boiler to be specified in bid so that: (1) The cast iron base of boiler shall be 12" high, set on 1/4" steel plate, 6" larger on two sides than the width of boiler and same length as boiler; with this in place; new foundation will not be necessary. Smoke Breeching The smoke breeching from boiler to the smoke stack shall be of No. 12 steel, riveted together after true fit has been obtained. The steel in old breeching can be used if in good condition. (2) "Boiler and Breeching Covering" The Boiler from base up shall be covered with 12" asbestos cement, well wired in place. This to be put on with several coats, the last coat to be troweled smooth and covered with canvas- when dry. Paint canvas with 2 coats of pure linseed oil and white lead,- colored -gray. The Breeching to be covered with 1" asbestos, all covering wired or banded in place. The Engineer can check as to its heighth. As the supply is now in and the smoke stack must be considered. (a) The present main supply now connected to old boiler shall be disconnected and run to the header or steam openings of new boiler. The valves on this line shall be replaced where directed. The pop safety valve on old boiler shall be placed on the new boiler and set as directed by the State Boiler Inspector. (b) Removal of old boiler. -- After the new boiler is in place and connected' with the heating plant, cut the old boiler to pieces and remove from the building. The dL-pression in floor where the old boiler sets shall have floor and sides cemented, making a smooth neat job. All pipes in basement, all wall coils and all radiators, and all exposed iron of boiler shall be given two coats of paint, adapted for that purpose. (c) At completion of job, leave building free of rubbish caused by the contractor. (3) The valves, steam gauge, pop -off safety valve now on old boiler can be used in connection with the new boiler pop -off valve to be set as directed by the Boiler Inspector. The Secretary was instructed to advertise for bids in two newspapers. The meeting adjourned at 11:45 A. M. I ATTEST: Clerk 10 0 • • 0 •