SPECIAL REPAIR/REPLACEMENT OF AC PLANT AGAINST BER SIGNAL CENTRE UNDER GE (EAST) PRAYAGRAJ.

Amount

Design, supply, installation, testing and commissioning of central air conditioning plant of working capacity not less than 25/26 TR (1x25/26 TR working and 1X25/26 TR standby) (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) The desired temperature in air conditioning area ranges from 20(+/- 5) degree centigrade, humidity 55 (+/- 10) %. (b) 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 (c) 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) (d) 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. (e) Necessary tank of suitable capacity to be installed on terrace for pipeline filling incl necessary piping and valves. (f) Contractor shall submit drawing and layout incl design parameters of equipments and ducting (supply and return) and get approval of appecting officer before executing the work on site Note:- (i) The Contractor shall quote the rate against unit Qty only. (ii) The contractor shall submit the drawing, desgin and layout of plant obtain from OEM to GE for approval of Accepting Officer before start of work.

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. Note:- (i) Size of cable shall be provided as per recommendation of OEM. (ii) The Contractor shall quote the rate against unit Qty only.

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 anti vibration 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. Note:- (i) Size of cable shall be provided as per recommendation of OEM. (ii) The Contractor shall quote the rate against unit Qty only.

Supply, installation, commissioning and testing of induced draft top discharge counterflow type FRP cooling tower (Rectagular/round bottle shape) suitable for capacity 60 TR AC plant 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 manufacturer's standard instructions including electric cable work from cooling tower motor to control panel in light grade GI pipe with 2 Nos GI earth wire extended alongwith cable clipped of suiable size from panel to motor complete including supply and installed 5000 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 Note:- (i) Size of cable and GI Pipe shall be provided as per recommendation of OEM.

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, deep 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 aluminium 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, including air mixing chamber if required at site complete and all electrical equipment to be connected with earthing incl supply and laying of suitable size electric XLPE cable work from AHU to control panel complete all as specified and directed. Note:- (i) Size of cable shall be provided as per recommendation of OEM.

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 making necessary connections incl supply and laying of suitable size electric XLPE cable work from AHU to control panel complete all as specified and directed. (For Humidity control / winter heating) Note:- (i) Size of cable shall be provided as per recommendation of OEM.

Supply and fixing 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 other minor work with 20 mm thick PUF insulation alongwith GI cladding with 26 guage GI sheet incl synthetic enamel paint. The piping work shall be complete with necessary horizontal and vertical MS supports complete all as mentioned dia under:

Description same all as per Item No 7.0 here in above but 100 mm bore complete all as specified and directed.

Description same all as per Item No 7.0 here in before but 80 mm bore complete all as specified and directed.

Description same all as per Item No 7.0 here in before but 50mm bore complete all as specified and directed.

Supply and install butterfly valve of CI of following sizes 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.

Description same all as per Item No 8.0 here in above but 100 mm bore complete all as specified and directed.

Description same all as per Item No 8.0 here in above but 80 mm bore complete all as specified and directed.

Description same all as per Item No 8.0 here in above but 50 mm bore complete all as specified and directed.

Supply and install Non return valve (NRV) of CI of following sizes 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.

Description same all as per Item No 9.0 here in above but 100 mm bore complete all as specified and directed.

Description same all as per Item No 9.0 here in above but 80 mm bore complete all as specified and directed.

Description same all as per Item No 9.0 here in above but 50 mm bore complete all as specified and directed.

Supply and fixing Stop valves, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for unions and fixed of dia 20 mm complete all as specified and directed.

Supply and fixing Stop valves, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for unions and fixed of dia 15 mm 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 fixing new Mild steel Y-strainer of 50 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 suitable for dia 15 mm pipe complete all as specified and directed. Note:- Size of pressure gauge shall be provided as per OEM recommendation.

Supply and install thermometers in the pipe line suitable for dia 15 mm complete all as specified and directed. Note:- Specification of thermometers shall be as per OEM recommendation.

Supply and fixing GI pipe (medium grade ) of following dia including all fittings such as bend, tee, elbow, union, reducer etc as required at site and making necessary connection complete as drain pipe complete all as specified and directed.

Description same all as per Item No 17.0 here in above but 50 mm dia (as drain) complete all as specified and directed.

Description same all as per Item No 17.0 here in before but 20 mm dia complete all as specified and directed.

Description same all as per Item No 17.0 here in before but 15 mm dia complete all as specified and directed.

Supply, assembly and erection of PGI sheet with TDF flange/ C& SS 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 thickness 22 gauge sheet complete all as specified and directed.

M&L for duct insulation with 25 mm thick open cell nitrile rubber (Class "1") material of density 140-180 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 wraping glass cloth incl UV chemical coating over nitrile rubber for exposed ducts for better mechanical protection and insulation from sunlight for complete all as specified and directed. Note:- Thickness of glass cloth shall be provided as per OEM recommendation.

M&L for suitable size of supply air grills as per manufacturer's design with extruder aluminium powder coated with air volume control and bird screen dampers complete all as specified and directed. Note:- Size and type of air grills alongwith air volume shall be provided as per OEM recommendation.

Providing suitable size of return air grills as per manufacturer's design with extruder aluminium powder coated without air volume control and with bird screen dampers complete all as specified and directed. Note:- Size of return air grills shall be provided as per OEM recommendation.

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. 3 connected to earthing test point including testing on completion, complete all as specified and directed. Note:- Rate for GI strip and protection pipes upto 7.5 mtr shall be inclussive in rate to be quoted against this Items.

Supply and install 3 way valve of CI 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 incl making connection from panel with suitable size cable complete all as specified and directed.

Supply, laying,testing XLPE cable Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 150 sq mm 3½ core incl suitable size lugs complete all as specified and directed.

Complete dismantling of the existing AC plant and depositing to AGE E/M store yard along with all acessories except Items as listed in schedule of credit incl transportation complete all as specified and directed.

ANSARI REFRIGERATION (BID ID -3223000)