PROVISION OF AIR CONDITIONING AND REFRIGERATION OTM ACCN OF EME BN AT OLD CANTT UNDER GE (PROJECT) ALLAHABAD.

Amount

Designing, supply, installation, testing and commissioning of central air conditioning plant of working capacity not less than 50/52 TR (2x25/26 TR-working) (As per standard design) to achieve the parameter as mentioned below including all civil works, mechanical, electrical unit and other allied equipments as per OEM comprising the following: (a) Supply , install , commissioning and testing of Water Cooled Scroll Chillers, with multi compressors, comprising of Semi - Hermetic/Hermetic/ Open Type Compress ors, DX Evaporator, Shell and Tube Condenser,suitable expansion device,suitable for operation on R - 22 /R - 407 C/R 410a refrigerants and of nominal capacity. (b) The chilling machine shall be shell and tube condensor type, suitable expansion device, suitable for operation on R407c/ R 410a refrigerants and fitted with built in safety devices like HP/LP cut outs, oil pressure switch, cooler freeze protection, high discharge gas temperature cut outs, earth fault protection for compressor against erratic power supply (under voltage, over voltage, phase reversal, phase imbalance and protection against short circuitting & overloading). (c) The chilling machine is to be designed to operate at high ambient temperature & refrigerant piping shall be seamless, copper tubes formed on hydraulic bending dies to minimise blazed joints thereby ensuring a high level refrigent circuit tightness, with antifreeze/glycol. The chiller shall be installed on necessary RCC/PCC/ISMB foundation with vibration isolation pads to minimise vibration.

Supply, installation, commissioning and testing of monoblock centrifugal pump(2W+1S) of capacity 66 USGPM (approx) discharge at 15 mtr head with electric motor AC 3 phase 415 V/440V 50Hz, cap 5 HP complete for chilled water, including MS channel with suitable antivibration pad and finishing to foundation work as required at site and connect with suction/discharge pipe lines, including supply and laying electric XLPE cable work from motor to control panel complete all as specified and directed.

Supply, installation, commissioning and testing of monoblock centrifugal pump(2W+1S) of cap acity 104 USGPM (approx) discharge at 20 mtr head with electric motor AC 3 phase 415 V/440V 50Hz, cap 5 HP complete for condensor water, including MS channel with suitable antivibration pad and finishing to foundation work as required at site and connect with suction/discharge pipe lines, including supply and laying electric XLPE cable work from motor to control panel complete all as specified and directed.

Supply, installation, commissioning and testing of induced draft top discharge counterflow type FRP cooling tower (Rectagular/round bottle shape) of capacity 60 TR with FRP body and base, water spray headers, cooling tower fills, fan with motor, MS ladder upto groung level, making suction and discharge pipe line connection including support base frames/foundation work as per mnufacturer's standard instructions including electric cable work from cooling tower motor to control panel in light grade GI pie with 2 Nos GI earth wire extended alongwith cable clipped of suiable size from panel to motor complete including supply and instaled 2000 ltr capacity 3 layer PVC make up water tank with suitable size of GI pipe connection and necessary RCC stagging/foundation complete all as specified and directed

Supply, installation, commissioning and testing of factory built double skinned, sandwiched with 25mm fiber glass/thermo coal/puff insulation, section type horizontal AHU's with six row, cooling coil suitable for 50/52 TR. AHU is to be fabricated out of powder galvanised steel sheet 24 gauge casing inner and outer with Penta Post type construction. The cooling coil shall have internally hatched copper tubes and dual sine wave aluinium fins with insulated drain pan. The blower section shall be completed with draw through type backward curved blower with TEFC type blower motor of suitable size with belt drive. The AHU's shall have high velocity pre-filters prior to cooling coil, spray type humudifier with suitable type pump motor, drift eliminator, capacity not less than 20000 CFM, complete with micron filters, PVC square type with humidification tank, humidity state digital thermostat, liqiud line filters, expansion valves (02 Nos for each coil), pilot solenoid valve, brass somatic valve, fire damper with fuible link, air damper manually operated, canvas connection MS/copper pipe and fitting as required, plenum chamber including inspection window and sitable size control cable for blower motor / heater/ humidity pump with suitable size of cable tray, foundation work, anti vibration pad, MS angle supports and other connected work, safety devices/controls as required at site and connect with suction / discharge pipe line including cutting welding work and required civil work complete and all electrical equipment to be connected with earthing complete all as specified and directed.

Condensor water pipings Supply and fixing 65/80/100 mm bore mild steel 'C' grade pipe (heavy duty ) including cutting and welding work complete including with fittings such as bend, tee, elbow, union, reducer etc as required at site and connect with condensor and cooling tower including and other minor work and painting of pipe with two coat of synthetic enamel paint over a coat of red oxide primer complete all as mentioned under :

100 mm bore.

80 mm bore.

65mm bore.

Providing plumbing work out of MS heavy duty 'C' class piping for liquid line & suction line of suitable dia as required alongwith two coats of synthetic paint. The piping work shall be complete with necessary horizontal and vertical MS supports including suitable size of liquid line valves, Y-strainer, thermometers, pressure gauge, Flow switches complete all as specified and directed.

Supply and install butterfly valve of size 100 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and install butterfly valve of size 80 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and install butterfly valve of size 65 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and install Non return valve (NRV) of size 80 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and fixing Mild steel pot strainer of 100 mm bore in the pipe line including cutting/welding work as required at site for accommodation of MS pot strainer complete all as specified and directed.

Supply and fixing new Mild steel Y-strainer of 80 mm bore in the pipe line including cutting/welding work as required at site for accommodation of MS pot strainer complete all as specified and directed.

Supply and install pressure gauge in the pipe lines complete all as specified and directed.

Supply and install thermometers in the pipe line complete all as specified and directed.

Chilled water pipings Supply and fixing 50/65/80 mm bore mild steel 'C' grade pipe (heavy duty ) including cutting and welding work complete including with fittings such as bend, tee, elbow, union, reducer etc as required at site and connect with condensor and cooling tower including and other minor work and painting of pipe with two coat of synthetic enamel paint over a coat of red oxide primer complete all as mentioned under :

80 mm bore.

65 mm bore.

Providing plumbing work out of MS heavy duty 'C' class piping for liquid line & suction line of suitable dia as required with 50 mm thick thermocole insulating alongwith GI wiremesh with 26G Aluminium cladding alongwith two coats of synthetic paint. The piping work shall be complete with necessary horizontal and vertical MS supports including suitable size of liquid line valves, Y-strainer, thermometers, pressure gauge, Flow switches complete all as specified and directed.

Supply and install butterfly valve of size 80 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and install butterfly valve of size 50 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and install Non return valve (NRV) of size 65 mm dia in the water pipe lines by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Supply and fixing new Mild steel Y-strainer of 80 mm bore in the pipe line including cutting/welding work as required at site for accommodation of MS pot strainer complete all as specified and directed.

Supply and install pressure gauge in the pipe lines complete all as specified and directed.

Supply and install thermometers in the pipe line complete all as specified and directed.

Drain pipe work Supply and fixing 50 mm bore GI pipe (medium grade ) including all fittings such as bend, tee, elbow, union, reducer etc as required at site and making necessary connection complete including 6 mm thick nitrile rubber insulation class 'O' complete all as specified and directed.

Air Ducting work Supply, assembly and erection of PGI sheet with TDF flange rectangular/square duct made out of 'L' shaped hollow profile, duly factory boxed, incl all accessories such as corner, cleat, carriage bolt, gasket and appropriate sealent on longitudenal joints etc complete of size 24 gauge sheet complete all as specified and directed.

Supply, assembly and erection of PGI sheet with TDF flange rectangular/square duct made out of 'L' shaped hollow profile, duly factory boxed, incl all accessories such as corner, cleat, carriage bolt, gasket and appropriate sealent on longitudenal joints etc complete of size 22 gauge sheet complete all as specified and directed.

M&L for duct insulation with 13 mm thick open cell nitrile rubber (Class "1") material of density 40-80 kg / m³ & thermal conductivity of 0.047 W/mK having anti fungal and antimicrobial properties as specified and including the following: (a) M&L for cleaning the duct surface (to be insulated) by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage. (b) M&L for applying rubber based adhesive CPRX compound. (c) M&L for sealing of all longitudenal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leak proof. (d) M&L for securing the insulation with and including mechanically fastened nylon / steel straps of size 12 mm / 50 mm at a max intervals of 1.2 mtr

M&L for acoustic lining with 25 mm thick open cell nitrile rubber (Class "1") material of density 40-80 kg / m³ & thermal conductivity of 0.047 W/mK having anti fungal and antimicrobial properties complete all as specified and directed.

Providing suitable size of supply air grills with extruder aluminium powder coated dampers. Providing suitable size of return air excruder aluminium powder coated grills (without damper). Providing suitable air volume control dampers & air bird screen damper. Providing GI fire damper with heat snesing system with suitable limit switch. Providing suitable size and type of laminar air flow diffuser as per requirement of the design.

Supply and installation of the winter heating system with monsoon re heating with hot water Generator 30 kw with 2 Nos pump (1w+1s) alongwith its MS pipe line alongwith required valves and making necessary connections complete all as specified and directed. (For Humidity control / winter heating)

M&L for Earthing complete with GI earth plate electrode 600 x 600 x 6 mm thick burried directly in ground ( earth pit not less than 2.25 m deep below GL) with top edge of the plate not less than 1.5 m below the normal ground level connected with GI strip 32 x 6mm thick by means of bolts, nuts, check nuts and excavation & earth work in any type of soil, removing surplus soil to a distance not exc 50 m, with and including PCC chamber in PCC (1:2:4), type B1 using (20 mm graded stone aggregate ), mild steel frame made out of angle iron of size 40 mm x 40mm x 3mm thick duly painted with two coats of synthetic enamal paint over one coat of red oxide zinc chrome primer hinged with and including 6mm thicks CI cover with handle, watering arrangement with funnel internally secured with wire mesh with 20mm dia medium grade pipe for watering, 40mm dia light grade GI pipe for lead protection in and including alternate layer of charcoal dust and comman salt complete all as shown in electrical plat no. 5 connected to earthing test point all as specified and indicated including testing on completion as directed.

M&L for Earthing complete with GI earth plate electrode 600 x 600 x 6 mm thick burried directly in ground ( earth pit not less than 2.25 m deep below GL) with top edge of the plate not less than 1.5 m below the normal ground level connected with galvanised earth lead wire 4.0 mm dia by means of bolts, nuts, check nuts and excavation & earth work in any type of soil, removing surplus soil to a distance not exc 50 m, with and including PCC chamber in PCC (1:2:4), type B1 using (20 mm graded stone aggregate ), mild steel frame made out of angle iron of size 40 mm x 40mm x 3mm thick duly painted with two coats of synthetic enamal paint over one coat of red oxide zinc chrome primer hinged with and including 6mm thicks CI cover with handle, watering arrangement with funnel internally secured with wire mesh with 20mm dia medium grade pipe for watering, 15mm dia light grade GI pipe for lead wire protection in and including alternate layer of charcoal dust and comman salt complete all as shown in electrical plat no. 3 connected to earthing test point all as specified and indicated including testing on complete all as specified and directed.

Supply and install 3 way valve of size 80 mm dia in the water pipe lines for AHU by providing flanges, short pieces of mild steel pipes, Gaskets, nut bolts and washers complete all as specified and directed.

Radhe Krishn Engineering

BRITE INDUSTRIES