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| 1 | Dismantling/Taking down the unserviceable panel of Air handling unit of capacity 22500 CFM and supply and fixing of 48 mm extruded aluminium without thermal break profile panel of size 48 mm+-2 mm thick double skin sandwich panels with rockwool/PUF insulation of density 38+-2 Kg/cum. The sheet thickness of panel shall be 0.8 mm for the outer skin and 0.6 mm thickness for the inner skin made out of GI sheet complete all as specified and directed. (Centre No 32). |
| 2 | Supply and fixing in repair of chilled water cooling coil with aluminium blue finned coated copper tubes (tube thickness not less than 0.5 mm). The face velocity across cooling coil shall be limited to not more than 500 FPM maximum. The copper fins thickness not less than 0.11 mm thick. The coil section shall be equipped with factory fitted pressure independent control valves.The scope shall include supply and installation of suitable size electronic self balancing heater to be considered to maintain the humidity of 55+-5%. The heater control system for AHU panel will be included in the quoted rate. The cooling coil will be six rows including suitable size PVC drain pipe with 13 mm thick insulation of 30 TR / 22500 CFM AHU complete all as directed. |
| 3 | Dismantling/Taking down the unserviceable drain Pan of Air handling unit of capacity 22500 CFM and supply and fixing of condensate drain Pan made out of 18 gauge stainless steel SS 304 powder coated sheet factory fabricated insulated with 19 mm thick closed cell elastomeric insulation complete all as specified and directed. (Centre No 32). |
| 4 | Dismantling/Taking down the unserviceable fan section enclosure of Air handling unit of capacity 22500 CFM and supply, fabrication and fixing of fan section enclosure of air handling unit of capacity 22500 CFM, IP 55 protection direct drive/belt driven backward curved electronically commulated fan. The fan section shall be provided with limit switch, sensors controller for safety to shut off fan during opening of access door complete all as specified and directed. (Centre No 32). |
| 5 | Taking down the unserviceable starter panel of Air handling unit of capacity 22500 CFM and supply and fixing of starter control panel indoor type made out of CRCA sheet 2 mm thick factory fabricated suitable for control system of AHU 22500 CUM capacity including transformer for energy valve, control cabling. The control panel shall be included with Over load protection, single phase protection, push buttins, indications, 2 Nos non polarised NO-NC contacts tripping on signal from fire dampers/fire alarm panel. The control panel shall hace instrumentation kit which give supply air tempreture, return air tempreture, chilled water in tempreture, chilled water out tempreture, DP switch across filter for filter clog complete all as specified and directed.(Centre No 32). |
| 6 | Dismantling/Taking down the unserviceable outer enclosure of Air handling unit of capacity 22500 CFM and supply, fabrication and fixing of factory fabricated double skin powder coated GI sheet of thickness 21 gauge, 25 mm PUF insulated for AHU body including proper door handles, corner supports cutting, bending, welding/brazing/wooden work/structrural support complete all as specified and directed.(Centre No 32). |
| 7 | Dismantling/Taking down the unserviceable panel of Air handling unit of capacity 40000 CFM and supply and fixing of 48 mm extruded aluminium without thermal break profile panel of size 48 mm+-2 mm thick double skin sandwich panels with rockwool /PUF insulation of density 38+-2 Kg/cum. The sheet thickness of panel shall be 0.8 mm for the outer skin and 0.6 mm thickness for the inner skin made out of GI sheet complete all as specified and directed.( Wecors). |
| 8 | Supply and fixing in repair of chilled water cooling coil with aluminium blue finned coated copper tubes (tube thickness not less than 0.5 mm). The face velocity across cooling coil shall be limited to not more than 500 FPM maximum. The copper fins thickness not less than .11 mm thick. The coil section shall be equpped with factory fitted pressure independent control valves.The scope shall include supply and installation of suitable size electronic self balancing heater to be considered for maintain the humidity of 55+-5%. The heater control system for AHU panel will be included in the quoted rate. The cooling coil will be six row including suitable size PVC drain pipe with 13 mm thick insulation of 60 TR / 40000 CFM AHU complete all as directed. |
| 9 | Dismantling/Taking down the unserviceable drain Pan of Air handling unit of capacity 40000 CFM and supply and fixing of condensate drain Pan made out of 18 gauge stainless steel SS 304 powder coated sheet factory fabricated insulated with 19 mm thick closed cell elastomeric insulation complete all as specified and directed.(Wecors). |
| 10 | Dismantling/Taking down the unserviceable fan section enclosure of Air handling unit of capacity 40000 CFM and supply, fabrication and fixing of fan section enclosure of air handling unit of capacity 40000 CFM, IP 55 protection direct drive/belt driven backward curved electronically commulated fan. The fan section shall be provided with limit switch, sensors controller for safetyto shut off fan during opening of access door complete all as specified and directed.(Wecors). |
| 11 | Taking down the unserviceable starter panel of Air handling unit of capacity 40000 CFM and supply and fixing of starter control panel indoor type made out of CRCA sheet 2 mm thick factory fabricated suitable for control system of AHU 40000 CUM capacity including transformer for energy valve, control cabling. The control panel shall be included with Over load protection, single phase protection, push buttins, indications, 2 Nos non polarised NO-NC contacts tripping on signal from fire dampers/fire alarm panel. The control panel shall hace instrumentation kit which give supply air tempreture, return air tempreture, chilled water in tempreture, chilled water out tempreture, DP switch across filter for filter clog complete all as specified and directed.(Wecors). |
| 12 | Dismantling/Taking down the unserviceable outer enclosure of Air handling unit of capacity 40000 CFM and supply, fabrication and fixing of factory fabricated double skin powder coated GI sheet of thickness 21 gauge, 25 mm PUF insulated for AHU body including proper door handles, corner supports cutting, bending, welding/brazing/wooden work/structrural support complete all as specified and directed.(Wecors).NOTE FOR ITEM NO 1 TO 12: ALL THE WORK WILL BE CARRIED OUT BY THE REP OF OEM AND ALL MATERIAL WILL BE AS PER BIS/IS AND WILL BE GOT APPROVED BY THE GE. |
| 13 | Material and labour for cleaning of coil section of any size AHU/FCU for descaling and providing 2 Nos 15 mm Tee outlet for local circulation of mild acid solution in the coil (separator container and small pump set to be used for circulation) PH value Zem solution to be kept and checked at an interval of 1 hrs duration process the scalgum/WS/cleansol or equivalent solution to be used for descaling if Ph value remains less than 7 flush with fresh water added to sodium carbonate till ph value become 7, refixing the coil section in position including minor repairs to be carried out in AHU coil bins to be cleared by scalgum solution by spraying the solution with washing pump up to required level and replacement of canvas connection between AHU complete all as directed. |
| 14 | Supply and fixing in repair blower set including drum and shaft along with anti vibration spring isolators for minimizing vibrations (blow/draw through type) as per existing size and suitable for size RDH 350-450 CFM of the AHU/FCU/RU unit including taking down old blower assembly complete all as directed. |
| 15 | Supply and fixing in repair blower set including drum and shaft along with anti vibration spring isolators for minimizing vibrations (blow/draw through type) as per existing size and suitable for size RDH 450-500 CFM of the AHU/FCU/RU unit including taking down old blower assembly complete all as directed. |
| 16 | Supply and fixing in repair double groove V belt pulley of various sizes including boring and making key slots as per existing and site requirement complete all as directed. |
| 17 | Supply and fixing in repair volume control damper made out of galvanised iron or anodised aluminium with overlapping leafs to avoid any leakage from the damper as per existing and site requirement complete all as directed. |
| 18 | Supply and fixing in repair leather type canvas in AHU duct as per existing and site requirement complete all as directed. |
| 19 | Supply and fixing in repair tempreture and pressure gauge suitable for chilled water pipe lines in AHU including accessories complete all as directed. |
| 20 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 80 mm complete all as directed. |
| 21 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 65 mm complete all as directed. |
| 22 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 50 mm complete all as directed. |
| 23 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 40 mm complete all as directed. |
| 24 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 32 mm complete all as directed. |
| 25 | Supply and fixing in repair of motorised 2 way valve (ISI marked) including tempreture sensors, actuators and controlling system of size 25 mm complete all as directed. |
| 26 | Material and labour for perforated GI cladding with 26 gauge GI sheet suitable for covering the surface of AHU pipe line insulation for protection against the damage of PUF insulation slab complete for 100 mm dia pipe complete all as directed. |
| 27 | Material and labour for perforated GI cladding with 26 gauge GI sheet suitable for covering the surface of AHU pipe line insulation for protection against the damage of PUF insulation slab complete for 80 mm dia pipe complete all as directed. |
| 28 | Material and labour for perforated GI cladding with 26 gauge GI sheet suitable for covering the surface of AHU pipe line insulation for protection against the damage of PUF insulation slab complete for 65 mm dia pipe complete all as directed. |
| 29 | Material and labour for perforated GI cladding with 26 gauge GI sheet suitable for covering the surface of AHU pipe line insulation for protection against the damage of PUF insulation slab complete for 32 mm dia pipe complete all as directed. |
| 30 | Material and labour for perforated GI cladding with 26 gauge GI sheet suitable for covering the surface of AHU pipe line insulation for protection against the damage of PUF insulation slab complete for 25 mm dia pipe complete all as directed. |
| 31 | Taking down the unserviceable mild steel pipe and supply and fixing of MS pipe heavy duty welded with all fittings laid in floor or fixed to wall, cieling etc of size 200 mm dia complete all as specified and directed. |
| 32 | Taking down the unserviceable mild steel pipe and supply and fixing of MS pipe heavy duty welded with all fittings laid in floor or fixed to wall, cieling etc of size 150 mm dia complete all as specified and directed. |
| 33 | Taking down the unserviceable mild steel pipe and supply and fixing of MS pipe heavy duty welded with all fittings laid in floor or fixed to wall, cieling etc of size 100 mm dia complete all as specified and directed. |
| 34 | Taking down the unserviceable mild steel pipe and supply and fixing of MS pipe heavy duty welded with all fittings laid in floor or fixed to wall, cieling etc of size 80 mm dia complete all as specified and directed. |
| 35 | Taking down the unserviceable mild steel pipe and supply and fixing of MS pipe heavy duty welded with all fittings laid in floor or fixed to wall, cieling etc of size 50 mm dia complete all as specified and directed. |
| 36 | Taking down the unserviceable butter fly valve of any size and make and supply and fixing of new CI butter fly valve (ISI marked) slim seal design with nitrile rubber lined seat with clutch lever PN 1.6 as per IS 13095 of size 150 mm dia complete all as specified and directed. |
| 37 | Taking down the unserviceable butter fly valve of any size and make and supply and fixing of new CI butter fly valve (ISI marked) slim seal design with nitrile rubber lined seat with clutch lever PN 1.6 as per IS 13095 of size 100 mm dia complete all as specified and directed. |
| 38 | Taking down the unserviceable butter fly valve of any size and make and supply and fixing of new CI butter fly valve (ISI marked) slim seal design with nitrile rubber lined seat with clutch lever PN 1.6 as per IS 13095 of size 80 mm dia complete all as specified and directed. |
| 39 | Taking down the unserviceable butter fly valve of any size and make and supply and fixing of new CI butter fly valve (ISI marked) slim seal design with nitrile rubber lined seat with clutch lever PN 1.6 as per IS 13095 of size 50 mm dia complete all as specified and directed. |
| 40 | Supply and fixing in repair unserviceable water pressure gauge and supply and fixing of new water pressure gauge 4\" dia with siphon bend to match with the existing for range 0 to 21 Kgs rating complete all as specified and directed. |
| 41 | Material and labour for replacement of unserviceable sensor and supply and fixing of new sensor type HP cut out complete all as specified and directed. Make: INDOFOSS/DANFOSS/JOHNSON |
| 42 | Material and labour for replacement of unserviceable LP cut out and supply and fixing of new sensor type LP cut out complete all as specified and directed. Make: INDOFOSS/DANFOSS/JOHNSON |
| 43 | Dismantling/Taking down the unserviceable cooling tower of capacity 50 TR and supply,installation, commissiong and testing of single cell FRP cooling tower 50 TR, suitable for flow rate each for plant capacity rejection capacity with FRP water basin PVC fillings with integral louvers and drift eliminators complete with hot water basin either fitted with spray nozzles or having self rorating sprinklers , statically and dynamically balanced axial flow type fan direct driven or driven through reduction gear box with TEFC induction motor, suction screen, make up quick filling arrangement, over flow and drain connections and suitable inspection ladder, access arrangement for cooling lower all accessories, basin fittings, fan fan motor suitable for 415 Volts supporting structure, anti vibration mounting etc complete all as specified and directed.(i) Hot water inlet temp=36 deg C(ii) Cold water outlet temp=32 deg C(iii) Wet bulb temp=28.4 deg C(iv) Flow rate=240 GPMMake: MIHIR/ADVANCE/PHARAPUR |
| 44 | Dismantling/Taking down the unserviceable cooling tower of capacity 40 TR and supply,installation, commissiong and testing of single cell FRP cooling tower 40 TR, suitable for flow rate each for plant capacity rejection capacity with FRP water basin PVC fillings with integral louvers and drift eliminators complete with hot water basin either fitted with spray nozzles or having self rorating sprinklers , statically and dynamically balanced axial flow type fan direct driven or driven through reduction gear box with TEFC induction motor, suction screen, make up quick filling arrangement, over flow and drain connections and suitable inspection ladder, access arrangement for cooling lower all accessories, basin fittings, fan fan motor suitable for 415 Volts supporting structure, anti vibration mounting etc complete all as specified and directed.(i) Hot water inlet temp=36 deg C(ii) Cold water outlet temp=32 deg C(iii) Wet bulb temp=28.4 deg C(iv) Flow rate=192 GPMMake: MIHIR/ADVANCE/PHARAPUR |
| 45 | Pumping down the plant to preserve the existing in refrigerantgas & leak testing of plant by charging of nitrogen gas in to entire plant & monitoring for 24hrs to find the leakages, rectification of leak by brazing & replacement of necessary gasket packingwherever required including copper tubes of suitable size vacumising of the plant by vacum pump & keeping 24hrs for pressure testing including rectification of leakages if any finally recharging of existing refrigerant gas to the plant and topping up ofrefrigerant if required to maintain the standard pressure complete testing of the plant for smooth functioning complete all as specified&as directed by Engineer-in-Charge. |
| 46 | Material and labour for disconnecting condenser for descaling, plugging them & providing of 15mm tee out let for local circulation of mild acid solution in the condenser (separate container and small pump set to circulate diluted acid solution to be used) PH value of solution to be circulated & to be kept 4 and checking frequently i.e. every one hour during the operation Scalgun WS solution to be used for descaling purpose after2 to 3 hours of cleaningif ph value remains less than flush with fresh water mixed with sodium carbonate tubes and cleaning with nylonbrush after closing the end covers, circulating diluted acid solution as specified above, to maintaine PH value as above & flushing the same with fresh water including recharging of storedrefrigerant up to required pressure of any capacitycomplete all as specified& directed by Engineer-in-Charge. |
| 47 | Supply and charge refrigerant R-22 gas in AC plant system as per requirement. |
| 48 | Replacement of Compressor Oil with new Compressor oil of Frizol 68 all as specified and directed by Engineer-in-Charge. |
| 49 | Taking down old unserviceable AHU pre filter and supply and fix new pre filters efficiency 90% down to particular size of 10 micron double knitted twisted polymer fabric (washable) rated with press drop of 6 mm WC, including aluminium anodized frame work of 16 SWG to be mounted in AHU filter assembly size (625 x 475 x 50) mm. Make:DYNA/ASPAWYMAN/MHP as approved |
| 50 | M&L for Cleaning of Air handling ducts internally by using special T&P like robortic arm, air compressor, air jet nozzles, flipper, vaccum pump and a suction blower with hepa filterand check before and after the cleaningcomplete all as specified and directed |
| 51 | Taking down GI/Al or any other type of false ceiling and refixing the same after completion of work complete all as specified and directed |
| 52 | Material and labour for repairs to Microprocessor of 50/60 TR Capacitychiller unit and supply and fix new microprocessor system of 50/60 TR AC Plant including replacing diods , transistors and wiring etc for AC Plantas specified and directed. |
