GENERAL AND PARTICULAR SPECIFICATIONS OF ... - UNDP

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Instructions for installation, operation and maintenance of the boiler shall be contained in a manual provided with each boiler unit. Record of fire tests shall be included in this manual. 07 – C H I M N E Y S The contractor shall furnish and install asbestos pipes chimney with all fittings such as socket and steel clamp, and shall supply and install the necessary horizontal and vertical sheet steel metal chimney connected between boilers and asbestos pipes. The sheet metal thickness shall not be less than 2 mm, and provided by suitable sliding doors for inspection and cleaning. 3 – 141 SPECIFICATIONS MECHANICAL WORKS 08 – FEED WATER TANKS Supply and install galvanized sheet metal tanks of capacities as indicated on drawings. The tank of boiler room No.1 [for main building] will be installed on roof of first floor of the main building, and the tank of boiler room No.2 [for Annex] will be installed on roof of the boiler room itself. The water supply to the tanks will be from the existing main water tanks installed on roof of the main building, and through connection to nearby main distribution pipes. Each tank should be complete with cover, automatic float valve, 10x10cm hardwood bearers, and all necessary fittings. 09 – FUEL TANKS Contractor shall furnish and install fuel tanks for the boilers. Fuel tanks should be made of steel sheets 4mm thick with an overall sizes as indicated on drawings and bill of quantities, and should be furnished with all fittings and accessories [inlets, outlets, vents, level indicators, connections]. All walls of tanks should be properly braced on the inside. Two layers of anti corrosion primary coat should be applied on all external faces. 10 – THERMOSTATIC VALVES The Contractor shall supply and install at the high point inlet of each radiator a thermostatic valve “Danfoss”, angle type of built in sensor as indicated on drawings and bill of quantities. It should allow for maximum or minimum setting ranges (highest and lowest setting point) in addition to facility of locking the setting range at a fixed setting point.
Required room temperature is 20 °C, with the possibility of changing the setting to any other required temperature. Valve thermostatic head must be exchangeable without having to drain the heating system. 11 – HEATING CONTROLLER AND PROGRAMMER A – Supply and install in the boiler room for each main loop of the main building an electronic controller and programmer “COSTER” type RTE353 with a three way modulating valve type 3FDN corresponding in size to that of related main flow and return pipe sizes of the loop together with the required electric motor, in addition to all shut off and regulating valves. The three-way valve should be installed on the suction side of the loop-circulating pump on the flow pipe as shown on drawings. Every controller includes one flow and one return sensor to be installed inside the flow and the return pipes in addition to an outside sensor installed on north or west wall. Controller also includes a weekly timer with daytime settings and nighttime settings and special knob forfixing daytime temperature, nighttime temperature in addition to 3 – 142 SPECIFICATIONS MECHANICAL WORKS HEATING CONTROLLER AND PROGRAMMER [CONDT’D] continuous lighting signal to show direction of three way valve movement whether fully open, fully closed or undergoing modulation. That is it should be possible for example to control the inside temperature between 7 am. And 2 pm. At 20 °C, then between 2 pm and 7 am. At 10 °C. All this should be controlled through changing the temperature of flow water by mixing with return water through a three way modulating valve programmed through the suggested electronic controller. The exact room temperatures and time settings should be programmed for the seven days of the week according to the requirements of our client. B – Supply and install for each sub loop of the Annex buildings an electronic controller and programmer “COSTER” type RMD 736 with a three way modulating valve type 3A corresponding in size to that of related main flow and return pipe sizes of the sub loop together with the required electric motor, in addition to all shut-off and regulating valves. The three way valve and sensor shall be installed on the return main pipe of the sub loop inside each Annex building together with the controller and accessories as shown on drawings to maintain a programmed maximum temperature of water in the return pipe at a point before mixing with the flow water through the three way valve and return to the boiler room. The sensor should be installed at the mentioned point. C – Supply and install a complete two boilers sequence controller “COSTER” consisting of regulator model RC2
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GENERAL AND PARTICULAR SPECIFICATIO
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SECTION A GENERAL A 1 SCOPE OF WORK
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3-2 SPECIFICATIONS GENERAL A 8 " AS
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3-4 SPECIFICATIONS GENERAL A 13 STA
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3-6 SPECIFICATIONS GENERAL A 16 SAM
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3-8 A 22 TEMPORARY WORKS AND REINST
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the opinion of the Engineer could n
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Conditions of Contract or, if the E
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3-14 I N D E X ______________ SECTI
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from suitable excavated material an
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Representative before any concrete
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y the Engineer and shall be trimmed
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Specifications and the Drawings. Th
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the Contract, the Contractor shall
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suit-able material of the same clas
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. By using two or more pavers opera
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5- Paved hard shoulders shall be co
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accordance with the under-mentioned
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intended to be used for the Project
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shall be rejected and the Contracto
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All coarse aggregate for concrete s
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(B) Organic Impurities Fine aggrega
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CONCRETE WORK The relative weights
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SPECIFICATIONS CONCRETE WORK C 5.04
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3-44 SPECIFICATIONS CONCRETE WORK C
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3-46 SPECIFICATIONS CONCRETE WORK C
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Water reducing and retarding admixt
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Precast hollow concrete blocks (hou
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the concrete and shall make all nec
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for the approval of the Engineer, a
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manufacturer’s directions and to
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Concrete surface shall be free from
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D 2.04 Lime Lime shall be non-hydra
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Hydrated lime up to 1/4(one quarter
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SECTION E ____________ S T O N E W
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to ensure close and regular fitting
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F 2.02 Waterproofing of exterior wa
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This layer shall be welded with pro
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Supply, and B.S. 1186 quality of ti
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Plywood shall consist of an old num
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All screws shall be countersunk and
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G 11 G 12 G 13 TRANSPORT AND PROTEC
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H -1 SCOPE These Specifications cov
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METAL WORK H -3.02 Flush Steel Door
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3-78 SPECIFICATIONS METAL WORK leve
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3-80 I N D E X __________________ S
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3-81 SPECIFICATIONS SANITARY INSTAL
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- Pipe work shall be installed in m
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d. Manholes over 1 meter deep shall
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3-87 I N D E X SECTION J FLOOR WALL
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ical in shape. Samples shall be sub
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Plastering shall not be commenced u
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J 4 WATERPROOFING PLASTER TO ALL EX
Page 109 and 110: Cement screed shall, unless otherwi
Page 111 and 112: with burlap to clean the tiles and
Page 113 and 114: the width and depth required to the
Page 115 and 116: Acoustical materials shall be non-c
Page 117 and 118: applied for the surrounding edge of
Page 119 and 120: K 2.02 Clear Sheet Glass Clear shee
Page 121 and 122: “PAINTING” and the bedding putt
Page 123 and 124: L 2.01 Materials in General The mat
Page 125 and 126: Primers applied to surfaces of diff
Page 127 and 128: Complete colour charts for the pain
Page 129 and 130: L 3.03 Ferrous Surfaces Surfaces sh
Page 131 and 132: Two coats of flintcoat Decoralt col
Page 133 and 134: All applicable sections of the gene
Page 135 and 136: a - b - All electrical drawings are
Page 137 and 138: If anything necessary to the proper
Page 139 and 140: M - 2 MISCELLANEOUS WORK: - 1 - EQU
Page 141 and 142: ELECTRICAL WORKS 5 - OPENING AND SE
Page 143 and 144: SPECIFICATIONS ELECTRICAL WORKS 1 -
Page 145 and 146: 3-126 SPECIFICATIONS ELECTRICAL WOR
Page 151 and 152: materials and equipment before inst
Page 153 and 154: two coats of red lead or anti-corro
Page 155 and 156: Fuel oil piping Steel Black schedul
Page 157 and 158: system shall be thoroughly cleaned
Page 159: the boiler to provide adequate air
Page 163 and 164: Unit shall be designed to meet CE s
Page 165 and 166: Exhaust Fans shall be of the centri
Page 167: 3 - 148 I N D E X _________________
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GENERAL AND PARTICULAR SPECIFICATIONS OF ... - UNDP

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