CERTAIN ESSENTIAL REPAIR TO AIR CONDITIONING PLANTS OF CAPACITY 3 X 115 TR AT HQ CAMS AND 2 X 220 TR AT HQ DGIS UNDER GE (U) PM DELHI CANTT10

Amount

Material and labour for de-scaling condensers of central AC plant 3X115 TR capacity of condenser by opening side plate, flushing the condenser tubes using de-scaling solution, Roding the condenser tubes carefully removing all the deposited materials completely and raising the solution through condenser tubes till clear water starts to come out from the condensers as complete including re-fixing the side plates by replacing gaskets & testing complete for satisfactory working at HQ CAMS complete all as specified and as directed.

ditto all as per item No. 1 above but Capacity of 2 X 220 TR at DGIS.

Material and labour for leakage detection of chiller and condensor pipe lines by charging dry Nitrogen Gas and with standing pressure for 24 hours, rectification of leakages, evacuation of the system as per manufacturer’s instruction for capacity of 3x115 TR AC plant at HQ CAMS complete all as specified and as directed. Note :- The rates quoted by the contractor shall deemed to include the cost of Nitrogen gas, charges for T&P and empty cylinders.

ditto all as per item No. 3 above but Capacity of 2 X 220 TR at DGIS.

Supply and fixing Acoustic treatment/ lining of area of AHU room with 22G, GI channels of 50x50 mm size fitted at 600x600mm girds. These girids will be fitted with 50mm thick 32 kg/cum fiber glass insulation covered be fiber glas tissue and 24 G Al perforated sheet and as required . The joint shall be minimium overlapping of 75mm with 30mmx 3mm aluminium strip covering. All corners shall be provided with 20x20x2mm aluminium angle with stainless steel counter sunk screws complete all as specified and directed.

M&L in replacement of providing and filling post/frame work of stainless steel, grade 304 pipes including braces of stainless steel, plates , angle flats , tubular sections etc including cutting, hoisting fixing with argon welding , bright finish , buffing polishing, grouting with PCC 1:2:4 type B1(using 20mm graded stone aggregates) in the existing foundations complete with necessary holes, nuts , bolts, caps and anchor plates for stainless steel, as specified and directred by Engineer-in-Charge.

M&L for installation of poly carbonate micro prismatic type retro reflective boards conforming to XI of ASTM, made of 4mm thick substrate of aluminium composite panel having 0.50mm thick skin of aluminium both side. The front side is to covered with full cube poly carbonate prismatic reflecting sheeting conforming to proposed type XI of ASTM with coloured scheme, including subject matter , message (bi-lingual), symbol and borders etc as per IRC 67-2001. The aluminium composite panel shall be suitably fixed inside stainless steel frame work with complete fixing angle support , nut bolt etc complete all as specified and directred by Engineer-in-Charge.

Supply & Fixing HRC fuse link, type HN, Cap 250 Amps complete all as specified and as directed.

Supply & Fixing HRC fuse link, type HN, Cap 200 Amps complete all as specified and as directed.

Supply & Fixing contactor 110A current rating with add on auxilary contact (2NO + 2NC) complete all as specified and as directed. Model No. 3TF50

Supply & Fixing power contactor, 95 Amps triple pole(TP), AC 3 duty, with add on block (2 NO+2NC), complete all as specified and as directed.

Supply & Fixing power contactor, 80 Amps triple pole(TP), AC 3 duty complete all as specified and as directed.

Supply & Fixing power contactor, 70 Amps triple pole(TP), AC 3 duty complete all as specified and as directed.

Supply & Fixing power contactor, 50 Amps triple pole(TP), AC 3 duty complete all as specified and as directed.

Supply & Fixing power contactor, 25 Amps triple pole(TP), AC 3 duty complete all as specified and as directed.

Supply & Fixing power contactor, 18 Amps triple pole(TP), AC 3 duty complete all as specified and as directed.

Supply & Fixing Auxillary contactor (2 NO+2NC), suitable for 12-80 Amps power contactors, complete all as specified and as directed.

Supply & Fixing three phase Over load thermal relay direct mounting type, relay range 4.5-7.5 Amps, including necessary wiring, thimbles, etc complete all as specified and as directed.

Supply & Fixing three phase Over load thermal relay direct mounting type, relay range 9-15 Amps, including necessary wiring, thimbles, etc complete all as specified and as directed.

Supply & Fixing three phase Over load thermal relay direct mounting type, relay range 14-23 Amps, including necessary wiring, thimbles, etc complete all as specified and as directed.

Supply & Fixing three phase Over load thermal relay direct mounting type, relay range 30-50 Amps, including necessary wiring, thimbles, etc complete all as specified and as directed.

Supply & Fixing three phase Over load thermal relay direct mounting type, relay range 45-75 Amps, including necessary wiring, thimbles, etc complete all as specified and as directed.

Supply & Fixing in repairs MCCB 4 Pole of capacity 63 Amps, 50 Hz, 415V with rupturing capacity of 16 kA including spreader terminals with taking down old unserviceable one complete all as specified and as directed,

Supply & Fixing in repairs moulded case circuit breakers(MCCB) 100 Amps, 4 Pole, 16 KA, thermal magnetic with rotary handle and spreader complete all as specified and as directed.

Supply & Fixing in repairs moulded case circuit breakers(MCCB) 160 Amps, 4 Pole, 36 KA, thermal magnetic with rotary handle and spreader complete all as specified and as directed.

Supply & Fixing in repairs moulded case circuit breakers(MCCB) 200 Amps, 4 Pole, 36 KA, thermal magnetic with rotary handle and spreader complete all as specified and as directed.

Supply & Fixing in repairs moulded case circuit breakers(MCCB) 400 Amps, 4 Pole, 50 KA, thermal magnetic with rotary handle and spreader complete all as specified and as directed.

S&F in replacement miniature circuit breaker (MCB) 63 Amps, TPN , 10 KA complete all as specified and directed by Engr-in-Charge.

S&F in replacement miniature circuit breaker (MCB) 32 Amps, TPN , 10 KA complete all as specified and directed by Engr-in-Charge.

S&F in replacement miniature circuit breaker (MCB) 25 Amps, TP , 10 KA complete all as specified and directed by Engr-in-Charge.

S&F in replacement 'C' curve miniature circuit breaker (MCB) 5-32 Amps, single pole (SP), 10 KA complete all as specified and directed by Engr-in-Charge.

Supply & Fixing solid state single phasing preventer type VSP2/ VSP3 complete all as specified and as directed.

Supply & fixing star/delta timer range 0-60 seconds, suitable for LT panels, complete all as specified and as directed.

Supply and fixing in replacement MPR D2, Aux. supply 240VAC complete all as specified and as directed.

Supply and fixing in repair/replacement switch disconnector fuse unit for Din type fuse FNX 250 TPN/FP complete all as specified and as directed.

Supply and fixing in repair/replacement switch disconnector fuse unit for Din type fuse FNX 200 TPN/FP complete all as specified and as directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, armoured, electric power cables (heavy duty) 1100 Volts grade with aluminium conductor of cross sectional area 95 Sqmm, 3 ½ core with galvanized steel strip or wire including taking down old unserviceable one complete all as specified and as directed.

`-ditto- all as per item No. 39 above but cross sectional area 50 Sqmm, 3 ½ core.

`-ditto- all as per item No. 39 above but cross sectional area 25 Sqmm, 4 core.

`-ditto- all as per item No. 39 above but cross sectional area 16 Sqmm, 4 core.

`-ditto- all as per item No. 39 above but cross sectional area 10 Sqmm, 4 core.

`-ditto- all as per item No. 39 above but cross sectional area 6 Sqmm, 4 core.

Supply & Fixing PVC insulated single core copper conductor cable of size 16 sqmm for connections in LT Panels, complete all as specified and as directed.

ditto all as per item no. 45 but size 10 Sqmm

ditto all as per item no. 45 but size 6 Sqmm

ditto all as per item no. 45 but size 2.5 Sqmm

Supply and fixing in repairs Star Delta Starter with suitable rating relays for motors 10 HP Capacity suitable for mounting on existing LT Panels of AC plants and connections with suitable size single core copper conductor wire & brass terminals of 6 way complete all as specified and as directed.

Supply and fixing in repairs DOL starters for motors upto 7.5 HP capacity with suitable rating relay, suitable for mounting on existing LT Panels of AC plants and connections with suitable size single core copper conductor wire complete all as specified and as directed.

Supply & Fixing aluminium lugs for cable of cross sectional area 6 Sqmm to 35 Sqmm complete all as specified and as directed.

Supply & Fixing aluminium lugs for cable of cross sectional area 50 Sqmm to 185 Sqmm complete all as specified and as directed.

Supply & Fixing copper lugs for cable of cross sectional area 6 Sqmm to 35 Sqmm complete all as specified and as directed.

Supply & Fixing shock absorbing rubber pads at the bottom of the AHU unit for absorbing shocks and vibrations, heavy duty of size 150 mmx 150mm complete all as specified and as directed.

Supply & top up Refrigerator Gas R-22 complete all as specified & as directed.

Supply & top up Refrigerator Gas R-134A complete all as specified & as directed.

Supply & top up Compressor Oil N-68 complete all as specified & as directed.

Supply & top up Compressor Oil RL-170H complete all as specified & as directed.

Supply and fixing in repairs thermostatic expansion valve suitable for compressor of capacity 110 TR of make Bluestar Model No. LCWX2-220DEF complete all as specified and as directed.

Supply and fixing in repairs thermostatic expansion valve suitable for compressor of capacity 115 TR of make Voltas Model No. WCDR1200MNS complete all as specified and as directed.

Supply and fixing of suction filter in repairs for Compressor including taking down old one complete all as specified and as directed.

Supply and fixing in repairs Pressure sensor suitable for compressor of capacity 110 TR of make Bluestar Model No. LCWX2-220DEF complete all as specified and as directed.

Supply and fixing in repairs pressure sensor suitable for compressor of capacity 115 TR of make Voltas Model No. WCDR1200MNS complete all as specified and as directed.

Supply and fixing in repairs of auto capacity regulator solenoid valve of size 6mm x 6mm x 6mm of 220V, 50 Hz, including connecting to inter rack with nut, bolts, washer, etc. complete all as specified and as directed.

Supply and fixing in repairs of pressure safety (pressure relief) valve 15mm dia, Normal Pressure Temperature (NPT) complete all as specified and as directed.

Supply and fixing in repairs Water temperature sensor suitable bluestar scroll type chiller units of 110 TR as per existing model and make complete all as specified and as directed.

Supply and fixing in repairs Water temperature sensor suitable Voltas reciprocal type chiller units of 115 TR as per existing model and make complete all as specified and as directed.

Supply and fixing in repairs Expansion board for screw type compressor of capacity 110 TR complete all as specified and as directed.

M&L labour for taking out the existing unserviceable PCB of the Central Type AC Plant of capacity 115 TR of make Voltas, transporting to authorised repair workshop carrying out the necessary repair re-assembling with the control panel of AC plant testing for staisfactory working complete all as specified and as directed.

M&L labour for taking out the existing unserviceable PCB of the Central Type AC Plant of capacity 110 TR of make Bluestar transporting to authorised repair workshop carrying out the necessary repair re-assembling with the control panel of AC plant testing for staisfactory working complete all as specified and as directed.

Supply and fixing in replacement Intelligent microprocessor control panel for Voltas chiller unit having open type reciprocating compressors of capacity 115 TR having auto, semi auto and manual mode options with Digital display for setting of parameters having diagonostic capabilities, microcomputer motor protection device (μ - MPD) and microcomputer voltage protection device (μ - VPD), pressure and temperature transducers for safety, Built-in time delay, Auto distribution of load, in-built, anti-freeze protection system, and Auto-restart feature, along with complete internal wiring with connecting accessories like cable, wires, terminals etc., all as specified and as directed.

Supply and fixing in replacement Intelligent microprocessor programmable controller for Bluestar chiller unit having open screw screw compressors of capacity 110 TR having auto, semi auto and manual mode options with Digital display for setting of parameters having diagonostic capabilities, pressure and temperature transducers for safety, Built-in time delay, Auto distribution of load, in-built, anti-freeze protection system, and Auto-restart feature, along with complete internal wiring with connecting accessories like cable, wires, terminals etc., all as specified and as directed.

Supply and fixing in repairs of Digital type Voltage Protection Device (VPD) suitable for 115 TR complete all as specified and as directed.

Supply and fixing in repairs of Digital type Motor Protection Device (MPD) suitable for 115 TR complete all as specified and as directed.

Material and labour for Overhauling and repairing of any size refrigerant suction/ delivery liquid line valve including servicing of valve, replacement of packing material, sealing rings, Teflon washers and testing complete all as specified and as directed.

Suppy & fixing in repairs/replacement Low/High pressure control /cut off switch type MP-1 complete all as specified and as directed.

Suppy & fixing in repairs/replacement Oil pressure control / cut off switch type MP-55 complete all as specified and as directed.

Suppy & fixing in repairs/replacement existing size Immersion Crankcase heater fitted into compressor oil sump complete all as specified and as directed.

Supply and fixing in repairs of 3 Way actuator valve for Central AC plant at HQ DGIS complete all as specified & as directed.

M & L for V-belt for AHU blower motor and compressor motor of existing size, A-31, A-35, A-51, A-54, A-56, A-62, A-75, A-92, B-31,B-104, B-106, B-107 etc complete all as specified and as directed.

Supply and fixing in replacement of AHU Shaft bearing No. P-207/ P-208 or existing size as per site requirement complete all as specified and as directed.

Supply and fixing in replacement thermometer range ( -20°C -50°C / 0°F-120°F) suitable for condenser and hot water line with suitable housing for mounting on pipe line complete all as specified and as directed.

Supply and fixing in replacement pressure gauge, range 0-100psi, 0-7kg/cm2 suitable for condenser and hot water line with suitable housing for mounting on pipe line including syphon accessories complete all as specified and as directed.

Supply and fixing in repairs/replacemnt thermostat suitable for central type A/C Plants Range 5 to 25°C complete all as specified and as directed.

M & L for servicing of expansion valves of any make and type including checking, adjusting the power element for smooth functioning including replacement of defective Teflon Washers, ‘O’ rings etc seats complete all as specified and as directed.

M & L for dismantling the old broken existing PVC tank and S&F in replacement 10000 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grain plastic (cylindrical, vertical with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed. Make- SINTEX/SUPREME/ VICTUS

Disconnecting from mains/taking out existing unserviceable/defective motor of capacity 2 HP/3 HP of any type, and make including disconnecting all electrical connections removing from foundation transporting to repair workshop disconnecting unserviceable burn out winding completely including insulating materials and rewinding of the complete stator with super enameled copper wire of existing size, applying proper insulation ‘F’ class varnish drying in oven, assembling, transporting back to site, re-installating, testing and commissioning complete all as specified and as directed by Engineer-in-Charge.

ditto all as per item No. 87 above but Capacity of 7.5HP

ditto all as per item No. 87 above but Capacity of 10HP

ditto all as per item No. 87 above but Capacity of 30HP

ditto all as per item No. 87 above but Capacity of 50/60HP

ditto all as per item No. 87 above but Capacity of 150HP

Disconnecting from mains/taking out existing unserviceable/defective Motor set upto 10 HP Capacity and repair/ replacement of bushings, worn out nuts, bolts washers, gaskets, gland etc and positioning the pump set and connecting up in existing position and testing complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective centrifugal pump and motor of capacity 30 HP of Central AC Plant, opening the pump, checking the impeller for any defects rectifying the defects, replace the worn out bearing of the impeller, stuffing box, back plates, gland packing mechanical seal and rusted nut, bolts etc assembling properly, greasing all movable parts and connecting up in existing position and testing complete all as specified and as directed.

Disconnecting from mains/taking out existing unserviceable/defective centrifugal pump and motor of capacity 50/60 HP b of Central AC Plant, opening the pump, checking the impeller for any defects, replace the worn out bearing ring of the impeller, stuffing box, back plates, gland packing mechanical seal and rusted nut, bolts etc assembling properly, greasing all movable parts and connecting up in existing position and testing complete all as specified and as directed.

Material and labour for servicing of AHU unit of any capacity including cleaning of bottom tray and painting inside the tray with one coat of marine anti-corrosive paint over a coat of red oxide primer, cleaning of cooling oil complete with high pressure detergent solution without damaging cooling coils, checking aligning and tightening of blower fan, greasing of all movable parts, replacement of worn out bolts, nuts shaft keys etc for capacity of 3 X 115 TR at HQ CAMS.AC plant complete all as specified and as directed.

ditto- all as per item No. 96 above but Capacity of 2 X 220 TR at DGIS.

Supply only in replacement rubber insulating mat class A type, chequered, size 2 Mtr x 1 mtr x 25 mm thickness, for working voltage 3.3 KV complete all as specified and as directed.

Supply and fixing in repairs cast iron sluice valve class PN 1.6 of size 50 mm complete all as specified and as directed.

ditto- all as per item No. 99 above but size 65 mm

ditto- all as per item No. 99 above but size 80 mm

ditto- all as per item No. 99 above but size 100 mm

Supply and fixing in repairs cast iron butter fly valves lever operated SS disc type nitrile/EPDM rubber lining PN 16 of dia 65mm complete all as specified and as directed.

ditto- all as per item No. 103 above but 80mm dia.

ditto- all as per item No. 103 above but 100mm dia.

ditto- all as per item No. 103 above but 150mm dia.

ditto- all as per item No. 103 above but 200mm dia.

Supply and fixing in repairs 250 mm dia cast iron non return valves of pressure class PN 1.6 including nuts, bolts, washers, gaskets, etc for Central type AC plants complete all as specifed and as directed.

ditto- all as per item No. 108 above but 150 mm dia.

ditto- all as per item No. 108 above but 100 mm dia.

Supply & fixing in repairs brass terminals upto 10 ways complete all as specified and as directed.

Supply and fixing in repairs of bottom tray for fan and coil section made out of MS sheet 1.6mm thick duly painted with two coats of synthetic enamel paint (1st grade quality) through spray machine o over a coat of red oxide chrome primer with 25mm thick thermocol insulation covered with tarfelt for AHU complete all as specified and as directed.

M&L for thermal insulation material 25 mm thick for MS pipe of 200mm with closed cell class o nitrile rubber elastomeric insulation of density 40-60 Kg/m3 thermal conductivity of 0.033-0.038 W/mk and µ>=7000 (k-flex st) with aluminium foil to be applied on pipes using manufacturers recommended rubber based adhesive as per the approved specification the material should be from global approved & UL approved for MS pipes as required at site complete all as specified and directed by engineer-in-charge.

M&L for thermal insulation material 25 mm thick for MS pipe of 80/100mm with closed cell class o nitrile rubber elastomeric insulation of density 40-60 Kg/m3 thermal conductivity of 0.033-0.038 W/mk and µ>=7000 (k-flex st) with aluminium foil to be applied on pipes using manufacturers recommended rubber based adhesive as per the approved specification the material should be from global approved & UL approved for MS pipes as required at site complete all as specified and directed by engineer-in-charge.

Material & Labour for Dismantling and taking down GI Duct of any size with insulation from walls, roofs, ceiling for replacement complete Including Ducting Supports , rubber gaskets, elbows, vanes, & supports as per (IS 655) etc

Supply, assemble and errection of ducting, made up of GI Sheets of 1mm (22 guage) thickness as in Air Condition Ducting including fabrication for required size, patch work, fixing on walls, roofs or ceiling or in existing iron frame work including all accessories such as Corner, Cleat, Carriage bolt, Gasket, lap joint, welding, reverting and appropriate sealant on longitudinal joints etc., including taking down of old unserviceable one (including old/unserviceable duct insulation), complete all as specified and as directed.

Material and Labour for 50mm thick fibre glass wool insulation in existing ducts of AC plants bonded with Aluminium foil, including wraping, pasting complete after 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, complete all as specified and as directed.

Material and Labour for frame work with angle iron for frame support, with fabrication, welding joining including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 including taking down old unserviceable one complete all as specified and as directed.

Dismantling the old broken fan hub assembly including blades of cooling tower and replacement with new fan hub assembly with dry cast aluminium blades heavy duty as per existing size including U-clamps, nuts, bolts & washers suitable for cooling tower of 125 TR capacity, complete all as specified and as directed.

ditto- all as per item No. 119 above but capacity of cooling tower 220TR

Supply and fixing in repair/replacement of Rubber Tyre Coupling (TC-19/ TC-14 / TC-13) set for chiller / condensor pump motor complete all as specified and as directed.

S&F in repair/replacement cable tray of size 300 x 50 mm and thickness 3.00 mm complete all as specified & directed.

S&F in repair/replacement cable tray of size 150 x 50 mm and thickness 3.00 mm complete all as specified & directed.

Supply and fixing in repairs bakelite terminal plate including brass studs, bolts and nuts etc suitable to match any make of 3 phase electric motors and capacity up to 60 HP complete all as specified and as directed.

Supply and fixing in repairs Porcelain /bakelite terminal bush suitable for terminal boxes of 3 phase motors upto 60 HP capacity complete all as specified and as directed.

Disconnecting the defective FRP cooling tower of Cap 125 TR and repair the same by replacing defective broken/unserviceable spare parts including repair to minor leakages & assembling, tesing & comminssioning for satisfactory performance complete all as specified & as directed. Note:- (i) Required Spare parts shall be measured and paid seperatly as 'Supply only' under relevent items. (ii) Labour charges for taking down old spares and fixing of new spares shall deemed to be included in unit quoted rate.

Supply only of following spare parts for FRP cooling tower complete all as specified & as directed:-

PVC branch pipe set of 4 Nos dia existing size and existing length

Eliminator FRP

PVC fills honey comb

PP spary nozzle P-25

PVC Pipe of 3M

PVC End Cap

PVC Separator

PVC Socket

PVC End cap 100 mm

Nut Bolt any size

FRP Compound

PVC Nozzle 40 mm. Note for item No 128 to 139 :- (i) Labour charges of item Nos. 128 to 139 are deemed to be included in the quoted rate in item Nos. 126 here-in-before. .

M&L for preparation of surfaces of Central AC Plant of capacity 2x 220 TR at DGIS, trap door,shutter, condensers,chillers,compresors, Induction motors, pumps, hot water boiler, C channels, all pipe lines, valves and outer body of cooling towers with different colors following the color code system as directed by the site-in-charge.Job includes removing the old paint by rubbing, brushing and applying one coat of red oxide zinc chrome primer and two coats of Synthetic Enamel Paint (1st grade quality) complete all as specified and as directed.

diitto- all as per item No. 140 above but Capacity of AC Plant 3x 115 TR at HQ CAMS.

Material & labour for earthing with galvanised steel earth plate electrode of size 60cm x 60cm x 6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanised earth lead by means of bolts, nuts check nuts and washers of galvanised iron strip of size 32x6 mm as earthing lead as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel, 20mm dia GI medium grade watering pipe, 40mm dia GI medium grade earth lead protection pipe and pre-cast earth pit cover made of RCC (1:1.5:3) type A1 duly reinforced with 8mm dia TMT bar @150 c/c both ways, one lifting handle made of 10mm dia TMT bar embedded in cover slab and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternate layer of 15cm thick including testing on completion all as specified and as directed. (Note:- Each protection pipe and earth lead upto and including 7.50m length is deemed to be included in unit rate of of this item.)

Supply & fixing of Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc.as required 32x6 mm galvanised iron strip including taking down old unserviceable one complete all as specified & as directed.

Servicing and repairing of electrical operated hot water generator of Capacity 245 KW complete with automatic and safety controls such as safety valve, purge valve, high limit cut out, automatic and manual reset, low level cut out stop controller, thermostat, heaters including replacement of defective/ unsv parts with complete all as per specified and directed

Supply and fixing in repairs/replacement Immersion heaters of cap 25 KW 230/440 volts as required complete all as specified & as directed.

Supply and fixing in repair/replacement strip heater heaters of cap 2/3 KW 230/440 volts as required complete all as specified & as directed..

M&L for taking out old MS pipes and Supplying & laying , testing & commissioning mild steel (Heavy) 'C' class pipe of size 250 mm dia on exposed surface / underground (in trenches) including welding works, connections with existing chiller/condenser water line, chiller/condenser pump, fabrication of bends, MS flange, tees, reducers, shoe, support ( brick masonry block & wooden support for underground / MS angle- clamp & wooden support for exposed surface ) along with priming coat of steel primer as per standard specification complete all as specified & as directed.. Note:- (i) The rates quoted by the contractor shall deemed to include the cost of MS fittings required during laying of MS Pipes. (ii) The Pipes of sizes 150 mm & below shall be M.S. ‘C’ class as per IS : 1239 and pipes size above 150 mm shall be heavy class of thickness min. 7mm as per IS: 3589

ditto- all as per item No. 147 above but of size 200 mm dia

ditto- all as per item no 147 above but size 150 mm dia

ditto- all as per item no 147 above but size 100 mm dia

ditto- all as per item no 147 above but size 80 mm dia

Supply laying, connecting and testing in replacement of GI water tubing 50 mm bore, medium grade, with all fittings, with screwed and socketed joints, laid on floor or fixed to wall or surface and making good the disturbed surface complete all as specified and as directed.

ditto- all as per item No. 152 above but 40 mm dia.

ditto- all as per item No. 152 above but 25 mm dia.

ditto- all as per item No. 152 above but 20 mm dia.

ditto- all as per item No. 152 above but 15 mm dia.

S & F in replacement Gun metal Ball valve suitable for 50 mm bore pipe complete all as specified and as directed.

All as per Srl item No. 157 here-in-before but suitable for 40 mm bore

All as per Srl item No. 157 here-in-before but suitable for 25 mm bore

All as per Srl item No. 157 here-in-before but suitable for 20 mm bore

All as per Srl item No. 157 here-in-before but suitable for 15 mm

M&L for Dismantling old/Unserviceable/rusted Supply/Return Air Diffuser/Dampers/side Grilles/VCD , of any size, type, shape from any location at Central AC Plants, complete all as specified and directed by engineer-in-charge.

M&L for Supply, fixing of powder coated extruded aluminum rectangular diffusers of required sizes with black anodized extruded aluminum volume control damper, nuts, bolts, screws etc.complete all as specified and directed by engineer-in-charge.

M&L for Supply, fixing of powder coated extruded aluminum rectangular diffusers of required sizes without volume control damper, along with nuts, bolts, screws etc.complete all as specified and directed by engineer-in-charge.

Supply & Fixing of powder coated extruded aluminum supply & return grills complete with fixing accessories like nuts, bolts, screws etc. complete all as specified and directed by engineer-in-charge.

Material and labour for Supply, installation, testing and commissioning in replacement of flexible fire retardant canvas connector cloth suitable for AHUs duct connection including removing of old one complete all as specified and directed.

Overhauling, testing and commisioning of screw compressor of capacity 110 TR, Model No. RC2-580A., hydrostatic pressure 42kg/cm2g, Make:HANBELL Overhauling including disconnecting/ dismantling of suction and discharge valves, side covers other control accessories. Shifting the faulty compressor parts to the contractors workshop for certain required repairs. Refixing the repaired/Replaced parts in its original position under supervision of site-in-charge complete all as specified and as directed. Note:- (i) Required Spare parts to be replaced during overhaluing shall be measured and paid in this quoted rate. (ii) Transportation charge & labour charges for taking down old spares and fixing of new spares shall deemed to be included in quoted rate.

Overhauling, testing and commisioning of Reciprocaing compressor unit of Chiller type AC plant of Cap. 3 X 115 TR Model No. WCDR1200MNS, Make-Voltas of capacity 115 TR. Overhauling including disconnecting/ dismantling of suction and discharge valves, side other control accessories, Shifting the faulty compressor parts to the contractors workshop for certain required repairs including , grinding, polishing etc. Refixing the repaired/Replaced parts in its original position under supervision of site-in-charge complete all as specified and as directed. Note:- (i) All Spare parts to be replaced during overhaluing shall be measured. (ii) Transportation charge & labour charges for taking down old spares and fixing of new spares shall deemed to be included in quoted rate.

Supply only the following spare parts for the compressor model No. WCDR1200MNS, Make-Voltas.

Main bearing seal end

Main bearing pump end

Center bearing

Connecting rod bearing

Suction & discharge reed

Suction & discharge spring

Shaft seal assembly

Crank shaft grinding

Valve plate grinding

D.V grinding

Liner honing & laping

Connecting rod bush

Gasket

Impaler

Oil Pump

Loader Line repair

Connecting rod

Piston

Liner

P S TRADERS (BID ID -3442365)

Flint India (BID ID -3444897)

Sai Enterprises (BID ID -3443489)