GE I R AND D/CHD-116/2024-25 SUPPLEMENTARY MAINTENANCE AND SERVICING OF AC PLANTS, AHUs AND OTHER CONNECTED ITEMS AT CHANDIGARH AND RAMGARH

Amount

Overhauling to the unserviceable compressor semi sealed type capacity 25 Ton by opening, dismantling of compressor, necessary machining / mechanical repair work etc and replacement of workout spare parts for smooth functioning of compressor, reassembling and testing for satisfactory operation complete all as specified and directed. The spare parts & other items required for replacement shall be measured and paid under Sch 'A' item No. 1.00 to 11 for separately. The spare parts which are not mentioned but are required for smooth and proper functioning / operation of compressor are deemed to include in the unit job. Note :- (Refrigerant gas and compressor oil shall be measured and paid for separately under relevant item of Sch 'A').

Supply only connecting rods for compressor semi sealed type capacity 25 Ton for serial item no 1.00 above complete all as specified and directed

All as per serial item no 2.00 above but suction reed and spring -ditto-

All as per serial item no 2.00 above but discharge reed and spring -ditto-

All as per serial item no 2.00 above but piston ring set -ditto-

All as per serial item no 2.00 above but piston with pin -ditto-

All as per serial item no 2.00 above but gas kit set -ditto-

All as per serial item no 2.00 above but repair to crank shaft by machining work -ditto-.

All as per serial item no 2.00 above but main bush -ditto-.

All as per serial item no 2.00 above but piston lock -ditto-

All as per serial item no 2.00 above but loading unloading valve coil -ditto-

Overhauling to the unserviceable compressor semi sealed type capacity 16 Ton by opening, dismantling of compressor, necessary machining / mechanical repair work etc and replacement of work out spare parts for smooth functioning of compressor, reassembling and testing for satisfactory operation complete all as specified and directed. The spare parts & other items required for replacement shall be measured and paid under Sch 'A' item No. 12.00 to 29.00 for separately. The spare parts which are not mentioned but are required for smooth and proper functioning / operation of compressor are deemed to include in the unit job. Note :- (Refrigerant gas and compressor oil shall be measured and paid for separately under relevant item of Sch 'A').

Supply only connecting rods for compressor semi sealed type capacity 16 Ton for serial item no 12.00 above complete all as specified and directed

All as per serial item no 13.00 above but connecting rods bearing in two half -ditto-

All as per serial item no 13.00 above but suction reed and spring -ditto-

All as per serial item no 13.00 above but discharge reed and spring -ditto-

All as per serial item no 13.00 above but piston ring set -ditto-

All as per serial item no 13.00 above but piston -ditto-

All as per serial item no 13.00 above but piston pin bush -ditto-

All as per serial item no 13.00 above but piston pin -ditto-

All as per serial item no 13.00 above but piston lock -ditto-

All as per serial item no 13.00 above but piston liner -ditto-

All as per serial item no 13.00 above but retaining plate -ditto-

All as per serial item no 13.00 above but discharge valve assembly -ditto-

All as per serial item no 13.00 above but shaft seal assembly -ditto-

All as per serial item no 13.00 above but gas kit set -ditto-

All as per serial item no 13.00 above but repair to crankshaft by machining work -ditto-

All as per serial item no 13.00 above but ‘O' ring set -ditto-

All as per serial item no 13.00 above but main bush -ditto-.

Supply and fixing in replacement of V belt A28 Section-A V Belts as per existing complete all as specified and directed.

All as per serial item no 30.00 above but A32 Section-A V belts -ditto-

All as per serial item no 30.00 above but B68 Section-B V belts -ditto-

All as per serial item no 30.00 above but B95 Section-B V belts -ditto-

All as per serial item no 30.00 above but B118 Section-B V belts -ditto-

Supply and filling compressor oil complete all as specified and directed.

Supply and fixing in replacement gun metal butterfly valve of 200 mm bore after removing old defective valve and providing necessary aluminium cladding & insulation as per existing complete all as specified and directed.

All as per serial item no 36.00 above but size of bore 150 mm -ditto-

All as per serial item no 36.00 above but size of bore 100 mm -ditto-

All as per serial item no 36.00 above but size of bore 80 mm -ditto-

All as per serial item no 36.00 above but size of bore 65 mm -ditto-

All as per serial item no 36.00 above but size of bore 50 mm -ditto-

Supply and fixing in replacement gun metal gate valves of size 15 mm with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

All as per serial item no 42.00 above but size 20 mm -ditto-

All as per serial item no 42.00 above but size 25 mm -ditto-

Supply and fixing in replacement ball brass valves of size 15 mm dia, high pressure, with polythene float and fly nut complete, screwed for iron pipe or brass ferrule complete all as specified and directed.

All as per serial item no 45.00 above but size 20 mm -ditto-

All as per serial item no 45.00 above but size 25 mm -ditto-

Material and labour for galvanised iron pipe medium grade of dia 25 mm including all fittings like elbows, bends, nipples, tees, plugs and unions etc. complete for making connections to cooling towers/ condenser or chilled water line for air release/make up water tank etc complete all as specified and directed.

All as per serial item no 48.00 above but size of dia 20 mm.

All as per serial item no 48.00 above but size of dia 15 mm.

Material and labour for laying MS pipe heavy grade of dia 40 mm with all fittings for making connections to cooling towers/ condenser or chilled water line complete all as specified and directed.

Material and Labour for laying MS pipe heavy grade of dia 50 mm with all fittings for making connections to cooling towers/ condenser or chilled water line complete all as specified and directed.

Material and labour for MS pipe heavy grade of dia 65 mm with all fittings for making connections to cooling towers/ condenser or chilled water line complete all as specified and directed.

Material and labour for laying MS pipe heavy grade of dia 80 mm with all fittings for making connections to cooling towers/ condenser or chilled water line complete all as specified and directed.

Taking out / purging of refrigerant gas from the system of Chiller unit /VRV/VRF unit of any capacity vacuuming the whole VRV/VRF with the help of vacuum pump and checking the complete system for leakages, carrying out the pressure test by charging the nitrogen gas in the system and checking of any leakage point , repair / rectification of the same and removing the nitrogen gas from the system and charging of refrigerant gas including charging of additional gas as required complete all as specified and directed. (Note: 1 The arrangement of T&P and nitrogen gas shall be contractors responsibility. 2. Refrigerant gas shall be measured and paid for separately).

Material and labour for charging of refrigerant gas R-410A/R-134A/R-22/R-407C/R-32 in AC plant complete all as specified and directed.

Dismantling unserviceable electric motor AC 3 Phase of capacity 2/3/5/7.5/10/20 HP and rewinding with super enamelled copper winding wire of existing size and replacing other burnt items including installing and testing complete all as specified and directed. Note:- Copper Winding wire shall be measured and paid for separately under respective Item.

Supply only super enamelled copper winding wire complete all as specified and directed.

Supply and fixing in replacement ball bearing No 6206/6208/6306/6307 complete all as specified and directed.

Supply and fixing in replacement ball bearing No 6308/6309/6310 complete all as specified and directed.

Supply and fixing in replacement of cooling fan (PVC) for 3 HP/ 5 HP rating water pump sets including dismantling of old one complete all as specified and directed

All as per serial item no 61.00 above but size 7.5 HP / 10 HP -ditto-

Supply and fixing in replacement of suction/discharge oil pressure gauge / water pressure gauge of size 100 mm dia with pressure range 0-150 PSI/ 0-300 PSI complete all as specified and directed.

Overhauling to FRP cooling towers by draining the water, cleaning the scales and dirt, washing the PVC fills by opening and dismantling the CT fan , replacing the damaged fills with new ones, re-assembling and testing complete all as specified and directed. Note : New PVC fills shall be measured and paid as supply and fixing in replacement separately under respective item of schedule.

Supply and fixing in replacement of PVC fills blocks for FRP cooling tower complete all as specified and directed.

Servicing of outdoor unit of VRV/VRF AC Plant from OEM / authorised dealer of OEM, cleaning the condenser coil and fins with water by using nylon brush to remove the dirt and scale for the AC plants 6x12.9 KW VRV/VRF unit at EMI building ETF complete all as specified and directed.

All as per serial item no 66.00 above but 2x15.3 KW VRV/VRF unit at EMI building ETF -ditto-

All as per serial item no 66.00 above but 2x 18 HP VRV/VRF unit at CADS bldg zone-I -ditto-

All as per serial item no 66.00 above but 20 HP VRV/VRF unit at High Pulse bldg zone-IV -ditto-

Supply and fixing in replacement display controller complete unit of package type /central type AC Plants of various capacity complete all as specified and directed.

Supply and fixing in replacement HP/LP pressure cut out switch complete all as specified and directed.

Supply and fixing in replacement water flow switch 220 V AC 10 amps for condenser/chilled water complete all as specified and directed.

Supply and fixing in replacement finned strip heater having terminal at one end and two holes at another end for installation, 240-volt, 3 KW complete all as specified and directed.

Supply and fixing in replacement finned strip heater having terminal at one end and two holes at another end for installation, 240 volt, 2 KW complete all as specified and directed.

Supply and fixing in replacement fan assembly with blade for FRP Cooling towers as per sample of approved make complete all as specified and directed

Supply and fixing in replacement syphon with cock complete all as specified and directed

Supply and fixing in replacement industrial type thermometer complete all as specified and directed.

Supply, install, testing and commissioning of hermetically sealed scroll compressor of capacity 11.00 Ton compatible with R22 refrigerant gas , suitable for water cooled AC Plant complete all as specified and directed.

Supply, install, testing and commissioning of hermetically sealed scroll compressor of capacity 8.5 Ton compatible with R22 refrigerant gas , suitable for duct able AC complete all as specified and directed.

Supply, install, testing and commissioning of hermetically sealed scroll compressor of capacity 5.5 Ton 3 phase 440 volts compatible with R22 refrigerant gas , suitable for duct able AC complete all as specified and directed.

Supply ,installation, testing and commissioning of centrifugal mono block type pumping set i.e chiller water pump having discharge capacity minimum 500 LPM at 45 m head coupled with electric motor 3 phase, 415 volt ,50 Hz of suitable capacity (approx 10 HP or above) to drive pump delivering water up to 45 m head and suction del pipe size 100mmx100mm ,mounted on common MS base frame including pcc foundation, nut, bolts etc complete all as specified and directed. Modal no-KDS -1030+ , make -kirlosakr

Supply ,installation, testing and commissioning of centrifugal mono block type pumping set i.e chiller water pump having discharge capacity minimum 400 LPM at 30 m head coupled with electric motor 3 phase, 415 volt ,50 Hz of suitable capacity (approx 7.5 HP or above) to drive pump delivering water up to 30 m head and suction del pipe size 100mmx100mm ,mounted on common MS base frame including pcc foundation, nut, bolts etc complete all as specified and directed

Supply and fixing for display board for electric shock treatment chart/ maintenance chart/ description chart of size 850x600 mm made out of CRCA sheet 2 mm thick with square pipe 35 mmx35 mm fixed around sheet by welding and making hanging arrangements on top of the board. Board shall be painted with two coats of stove enamelled paint (navy blue) over a coat of red oxide primer and writing the detail with fluorescent reflective tape (as per sample) by digital computerized printing style complete all as specified and directed.

Supply and fixing synthetic insulating rubber mat of size 2 m x 1 m x 19 mm (ISI Marked) suitable for control panels of AC Plants complete all as specified and directed.

Supply and fixing in repair MCCB rating 100 amps, 4 pole, 415 volts breaking capacity 16 KA complete all as specified and directed.

Supply and fixing in repair MCCB rating 125 amps, 4 pole, 415 volts breaking capacity 16 KA complete all as specified and directed.

Supply and fixing in repair MCCB rating 200 amps, 3 pole, 415 volts breaking capacity 36 KA complete all as specified and directed.

Supply and fixing in repair MCCB rating 250 amps, 3 pole, 415 volts breaking capacity 36 KA complete all as specified and directed.

Supply and fixing in repair MCB TPN rating 40 amps, 4 pole, C-type, 415 volts breaking capacity 10 KA complete all as specified and directed.

Supply and fixing in repair MCB TPN rating 63 amps, 4 pole, C-type, 415 volts breaking capacity 10 KA complete all as specified and directed.

Supply and fixing in repair MCB TP rating 40 amps, 3 pole, C-type, 415 volts breaking capacity 10 KA complete all as specified and directed.

Supply and fixing in repair MCB SP rating 6-32 amps, single pole, 240 volts complete all as specified and directed.

Supply and fixing in repair MCB SPN rating 40 amps, single pole neutral, 240 volts complete all as specified and directed.

Taking out old unserviceable power/auxiliary contactor from control panel / starter and supply and fix new power contactor of following size and capacity complete all as specified and directed:-

Power contactors of AC3 rating 12 amps MNX type

Power contactors AC3 rating 22 amps ML type complete all as specified and directed.

Power contactors AC3 rating 32-40 amps ML type complete all as specified and directed.

Taking out old unserviceable timer switches from LT panel / starter and supply and fix new timer switches timer switch range 0 to 60 second complete all as specified and directed.

Supply and fixing in replacement of terminal block connector complete all as specified and directed.

Supply and fixing in replacement phase failure relay with fixed under & over voltage cut out complete all as specified and directed.

Supply and fixing in replacement digital volt meter, complete all as specified and directed.

Supply and fixing in replacement digital ampere meter, complete all as specified and directed.

Supply and fixing in replacement single phase preventor complete all as specified and directed.

Supply and fixing in replacement on / off push button with lense complete all as specified and directed.

Supply and fixing in replacement compressor motor protector relay 22 A,240V reset delay 30 min + 5 min complete all as specified and directed

Supply and fixing in replacement time delay relay range 0-30 Sec complete all as specified and directed.

Supply and fixing in replacement temperature control switch complete all as specified and directed.

Supply and fixing in replacement indicating light universal complete all as specified and directed.

Supply and fixing in replacement toggle switch 15 amps complete all as specified and directed.

Supply and fixing in replacement thermostat for heating control range 0-30 degree centigrade complete all as specified and directed.

Material and labour for painting to existing AC installations sign board of size 1.2 m x 1.0 m with two coats of synthetic enamel paint approved colour over a coat of primer and writing letters in 4 inches sizes and colours as required including scrapping out old rusted paints complete all as specified and directed.

Overhauling/servicing of voltage stabilizer of capacity 15 KVA/20 KVA 3 phase by checking of PCB plate, main transformer, control transformer, servo motor, dimmer and resistance port etc and making necessary adjustment by replacing screw, lugs, shouldering of loose connection, wiring etc complete all as specified and as directed. ( Spare parts shall be measured and paid for separately under respective items )

Supply and fixing in replacement PCB complete all as specified and directed.

Supply and fixing in replacement digital volt meter square type 0 to 300 volt complete all as specified and directed.

Supply and fixing in replacement servo motor 220-volt 3 Kg torque, 60 RPM complete all as specified and directed.

Supply and fixing in replacement resistance port complete all as specified and directed.

Supply and fixing in replacement control transformer complete all as specified and directed.

Material and Labour for earthing complete with galvanised steel earth plate electrode 60cm X 60cm X 6.0mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5mtr below normal ground level connected to GI earth strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron complete earth pit of PCC M-10(Nominal mix) using 20mm graded stone aggregate, 50mm thick earth pit cover of RCC M-15 (Nominal mix) using 20mm graded stone aggregate with MS TMT reinforcement bar of 8mm dia @ 150mm centre to centre both ways, MS handle 10mm dia made to shape, PGI funnel, wire mesh and 20mm bore GI water pipe medium grade and 40mm bore light grade GI pipe for protection of earth strip from plate to main switch board, common salt, charcoal dust including testing on completion complete all as specified and as directed all as shown in electrical plate No. 5 including testing on completion and making good the disturbed surfaces of wall floors etc without claiming extra cost complete all as specified and directed. (Note: GI strip & GI pipe beyond 7.5Mtr length from earth electrode shall be measured and paid for separately).

Material and labour for earth continuity conductor size 32x6 mm galvanized iron strip complete all as specified and directed

Supply and fixing for rotational moulded polyethylene water storage tank of storage capacity 1000 litres (cylindrical vertical with closed top) hoisted and fixed in position including fixing of inlet and outlet pipes, float valves and other necessary accessories complete all as specified and directed.

Supply and fixing for chicken wire mesh of medium SS material , hexagonal weave type, fine finish suitable for cooling tower protection including all necessary nuts, bolts, screws, washers etc. complete all as specified and directed

Material and labour for insulation of MS chilled water pipes of any size with class 'O' nitrile sheet of thickness 25 mm having factory evaporated aluminium foil using suitable adhesive of approved make and sealing all the longitudinal joints and circular overlaps with suitable ALP tapes 50 mm x 3 mm complete all as specified and directed

Supply and fixing in replacement 50 mm thick washable type pre-filters with filter element made out of synthetic non-woven media supported by HDPE mesh on both side including stitching in diamond pattern complete including frame, suitable for efficiency 90% down to 10 micron EU-3 type complete as sample with mounting frame work complete all as specified and directed.

Supply and fixing in replacement solenoid coil AMG type 120-240 volts complete all as specified and directed.

Material and labour for repair of PCB of control panels of chilling units/package units/VRV VRF unit of any capacity including checking the components, replacing damaged components with new ones, making the PCB fully functional till Engineer-in-Charge's satisfaction complete all as specified and directed.

Taking out old unserviceable thermal overload relay from LT Panel/control panel/starter and supply and fixing new thermal overload relays ML type of any range as per existing complete all as specified and directed.

Supply and fixing in replacement of refrigerant dryer filter of various size/capacity as per sample for water cooled central AC plant complete all as specified and directed.

Supply and fixing in replacement of refrigerant dryer filter of various size/capacity as per sample for Package type AC plant complete all as specified and directed

Taking out old unserviceable chiller water sensor of any size/cap and supply and fixing of new chiller water sensor as per sample complete all as specified and directed.

Supply, programme, testing & commissioning of AC drive, 5.5kW ,V/F control, input 3- phase, 415 volt, AC, output 3phase, 415 volt, AC for control AHU motor of VRV/VRF AC plant and chiller plant complete all as specified and directed. MAKE- YASKAWA/Delta / ABB/Siemens

Supply, programme, testing & commissioning of AC drive, 2.2kW ,V/F control, input 3- phase, 415 volt, AC, output 3phase, 415 volt, AC for control AHU motor of VRV/VRF AC plant and chiller plant complete all as specified and directed. MAKE- YASKAWA/Delta / ABB/Siemens

Supply and fixing of pre- painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

Material and labour for excavation in post holes soft/loose soils (for similar holes each not exc 0.5 cum getting out returning , filling in and ramming earth or broken rubble mixed with earth around in layers not exceeding 25cm complete all as specified and directed.

Material and labour for PCC 1:3:6 type C2 using 40mm graded aggregate as in foundation, filling and mass concrete complete all as specified and directed.

Supply and fixing rolled section joist , channel angle or tee sections, fixed independently without connection plated etc ( cut of ordinary lengths i.e within 20 mm of the length indicated conforming to FE 410 Gde E-250 quality A complete all as specified and directed.

M/S BALWINDER SINGH (BID ID -3307087)