GE (I) R AND D/CHD-96/2023-24 SUPPLEMENTARY REPAIR AND MAINTENANCE OF VRV, VRF TYPE, AIR COOLED CENTRAL AC PLANT AIR DUCTING, AHU AND OTHER CONNECTED WORKS AT ETF, AAG ZONE IV AT TBRL RANGE RAMGARH AREA UNDER GE (I) R AND D CHANDIGARH

Amount

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

Dismantling unserviceable electric motor AC 3 Phase of capacity 2/3/5/7.5/10 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:- Supply of copper winding wire shall be measured and paid for separately under respective Items.

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 spcified and directed.

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

Repair and overhauling of air handling unit of Central AC Plants, dismantling of Air filters and cleaning the cooling coil with chemical and refixing the air filtrer after cleaning and testing and greasing the bearing of blower shaft etc complete all as specified and directed ( AC Plant AHUs Air handling unit no.1 of 3x12.9 KW and 1x15.3KW VRV VRF type Central AC plant at EMI building ETF )

All as per serial item no 6.00 above but Air handling unit no.2 of 3x12.9 KW and 1x15.3KW VRV VRF type Central AC plant at EMI building ETF -ditto-

All as per serial item no 6.00 above but Air handling unit of 2x85 Ton Central AC plant at EMC Bldg, ETF -ditto-

All as per serial item no 6.00 above but Air handling unit of 2x18 HP VRV VRF type Central AC plant at CADS bidg AAG zone -ditto-

Material and labour for servicing of Cassette type/ hi wall split type indoor units of cap 1.28/2.0/3.18/1.5/2.0 TR installed at high pulse bldg Zone-IV from OEM/ Authorised dealer of OEM complete all as specified and directed.

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.

Material and labour for servicing of Outdoor uniot of VRV/VRF AC Plant from OEM / Authorised dealer of OEM, cleaning the condeser coil and fins with water by using nylon brush to remove the dirt and scale complete all as specified and directed. (AC plants 6x12.9 KW VRV/VRF unit at EMI building ETF)

All as per serial item no 12.00 above but 2x15.3 KW VRV/VRF unit at EMI building ETF -ditto-

All as per serial item no 12.00 above but 2x 18 HP VRV/VRF unit at CADS bldg zone-I -ditto-

All as per serial item no 12.00 above but 20 HP VRV/VRF unit at High Pulse bldg zone-IV -ditto-

Material and labour for preperation of old painted surfaces of MS / GI pipe line of condenser and chilled water and applying two coats of synthetic enamel paint on steel/iron surfaces complete all as specified and directed.

Material and labour for preperation of old painted surfaces of condenser water/chilled water monoblock pumpsets of capacity upto 10 HP and applying two coats of synthetic enamel paint on steel/iron surfaces complete all as specified and directed.

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

Material and labour for Insulation of M S Pipe with PUF slab 30 mm thick with and including applying bituminuous compound and aluminium cladding with 26 gauge aluminium sheet for MS pipes of 50 mm dia complete all as specified and directed.

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

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

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

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

Supply and fixing in replacement of MCB TPN rating 40 Amps, 4 pole, C-type, 415 volts breaking capacity 9 KA complete all as specified and directed.

Supply and fixing in replacement of MCB TPN rating 63 Amps, 4 pole, C-type, 415 volts breaking capacity 9 KA complete all as specified and directed.

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

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

Supply and fixing in replacement power of contactors of AC3 rating 9-25 Amps MNX type complete all as specified and directed

Supply and fixing in replacement of timer Switches timer switch range 0 to 60 second complete all as specified and directed.

Supply and fixing in replacement of digital Volt Meter, complete all as specified and directed.

Supply and fixing in replacement of digital Ampere Meter, 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 mtr 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 replacement of earth continuity conductor size 32x6 mm galvanized iron strip complete all as specified and directed

Supply and fixing in replacement of 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, flaot valves and other necessary accessories 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 aluminum 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 of 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.

Detecting the leakage in VRV/VRF unit of any cap by giving nitrogen pressure and rectifying the same and charging of refrigerant gas R-410A/ R-407C/R-32 complete all as specified and directed

Supply and fixing in replacement of Inverter LED batten with opal Diffuser, IP-20, Battery Back-up & functioning as per product TDS of Halonix cat part no LED INVERTER BATTEN HLB-08-18CW-INV /Havells/ CG/ Philips complete all as specified and directed.

Supply and fixing in replacement of Inverter LED street light PDC housing, IP-6, with battery Back - up, Auto On-Off/Dimm & Functioning as per product TDS of Halonix cat part no LED SL 30W HLSLD-ML04-30-CWL-INV-RTC-R / Havells/ CG/ Philips complete all as specified and directed.

SANJEEV ENTERPRISES