Military Engineer Services-MES has published Tender For Comprehensive Maintenance And Repair Work Of Central Package Type Ac Plants And Allied Works Including Connected Misc Items At Irde Under Ge (I) Rnd Dehradun. Submission Date for this Tender is 25-08-2023. HVAC Tenders in dehradun Uttarakhand. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 18-Aug-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 25-08-2023 |
| Sl. No. | Item Description |
| 1 | Material and labour for Descaling of condenser unit by rubbing with nylon brush/ cleaning rod using hydrochloric acid pumped through electric driver descaling pump including dismantling and connecting all dismantled components in proper position after servicing/ overhauling/ greasing etc replacement of packing gasket 3mm thick, nuts, bolts with washer, testing of water line for leakage & repairing of pipe line to make it leak proof complete, all as specified and directed for the following AC plants :- Notes : (i) The de-scaling & cleaning of condenser (Heat Exchanger) of cooling tower shall be done by circulating concentrated de-scaling solution mixed withwater of make as approved to the entire satisfaction of GE/Engineer-in-Charge complete all as specified in Sch ‘A’. (ii)The hydrochloric acid shall be used as a de-scaling solution mixed with water in a suitable proportion as approved by the GE/Engineer-in-Charge so as avoid damage to existing pipe lines. |
| 2 | 11 TR capacity AC Plant Package Type (installed at Mechanical LabTechnical Area. IRDE) |
| 3 | 27.5/27 TR capacity AC Plant(installed at Micro /C V RAMAN Building IRDE) |
| 4 | 30 TR capacity AC plant (installed at Cketak Buildling). |
| 5 | 45 TR capacity AC Plant (installed at Large OpticsBuilding IRDE) |
| 6 | 65 TR capacity AC Plant (installed at MMG / Optics Building IRDE) |
| 7 | 80 TR capacity AC plant (installed at Photonic Buildling &EOL/ TIS BuildingIRDE). |
| 8 | Dismantlingthehead from compressor fitted in system, and strip opening ofcompressor headof twin cylinder forModel AC 27.5 TR of Kirloskar make SMC 8-65 model of ACCEL compressorcompletely for servicing /overhauling mechanically and electrically, and checking of various components with precision instruments to assess the requirements of repair/replacement, and making inventories for repairs required andre-fixing the serviceable parts in position afterproper cleaning, oiling/greasing,etc ,andremoving & replacement of defective / unserviceable parts with new parts,as required at site, and reassembling thecompressors headensuring perfectly leak proof after cleaning the oil sump, oil pump connecting rod, piston, liner etc and filling of compressor oil, before charging of refrigerant gas torequired pressure and testing at site on full load to the entire satisfaction complete all as specified and directed for following :- ( includednotes mentioned in here in after) Notes: - (i) The replacement of defective / nonfunctional parts, andRefrigerant gas and compressor oilfor top up shall be measured & paid for separately as “Supply only” under appropriate item of Sch ‘A’ and fixing/filling rate for new items are deemed to include under these items. (ii) The refregrent gas to be pumped down before dismantlling the compressure head for avoid the wastage of gas. (iii)The quoted rate shall be deemed to include replacement of small/ minor parts for prroper functioning of compressure . |
| 9 | M&L forcutting and grinding the crank-shaft (for27.5 TRof Kirloskar make/SMC 8-65 model of ACCEL compressor) of 0.50/0.75 mm aroundas required to make it equivalent to manufacturer’s standard sizeand smoothening/ fine finishing,polishingof shaft to match with half section big end bearings, cleaning oil ports for proper lubrication complete all as specified and directed by Engr-in-Charge. Note : (i) The cost of taking out and re-fixing of the shaft / rod in position after necessary repairs is deemed to be included under the rates quoted by the contractor for respective Schedule `A"item. (ii)The rates for above items are deemed to include transportation to & fro of crank-shaftto workshop for necessary repairs. |
| 10 | Supply onlyfollowing items / spare parts suitable for Kirloskar make compressors of semi sealed 27.5 TR / 8-65 Accel Make dismantled / fixed under Sch ‘A’ item No.3 here inabove completeall as specified and directed |
| 11 | Cylinder liner |
| 12 | Piston Bare |
| 13 | Compression ring set |
| 14 | Pistonpin/ gudgen pin |
| 15 | Circlip internal |
| 16 | Connecting rod -05mm |
| 17 | Suction valve"o" ring |
| 18 | Suction & Discharge valve spring |
| 19 | Discharge valve assembly (R-22) |
| 20 | Crank shaft AC COMPRESSOR27.5 TR ofMakeKIRLOSKER/8-65 Accel Make |
| 21 | Safety plate |
| 22 | Shaft seal assembly |
| 23 | Rewinding of semi sealed compressure 27.5 TR |
| 24 | Filter wire gauge |
| 25 | Suction filter with nut |
| 26 | Oil pump with ring set for compressure 27.5 TR |
| 27 | Set of gasket for compressure 27.5 TR |
| 28 | Main bearing .05 mm. |
| 29 | Oil filter |
| 30 | loading coil |
| 31 | pressure gauge - 30 to 300 PSI |
| 32 | Carrying out leak detection in the system of AC plants including nitrogen pressure testing for 24 hours and repairing the leakage by gas welding / electric welding of refrigerant pipes, replacement of valve gland, gaskets etc. and then creating vacuum for 4 hours before charging refrigerantgas R-22 in the system and testing the complete plant for working pressure for 24 hours complete, all as specified and directed. Note : R-22 gas shall be measured and paid separately under Schedule ‘A’ Item. |
| 33 | 11 TR capacity AC Plant Package Type(installed at Mechanical LabTechnical Area. IRDE) |
| 34 | 27.5/27 TR capacity AC Plant(installed at Micro /C V RAMAN Building IRDE) |
| 35 | 30 TR capacity AC plant (installed at Cketak Buildling). |
| 36 | 45 TR capacity AC Plant (installed at Large OpticsBuilding IRDE) |
| 37 | 65 TR capacity AC Plant (installed at MMG / Optics Building IRDE) |
| 38 | 80 TR capacity AC plant (installed at Photonic Buildling &EOL/ TIS BuildingIRDE). |
| 39 | Supply, fixing, connecting and testing in replacement of UNSV strip heater fins type, 3.0 KW, 230 volts, single phase, AC supply in any positioncomplete, all as specified and directed. |
| 40 | Supply of refrigerant gas monochloro difluoro methane (CHCLF2) R- 22 conforming to IS-5160 of 1983 , duly filled in factory sealed cylinder standard capacity for filling under Sch ‘A’ item No 2. andhere inabove complete, all as specified and directed. |
| 41 | Supply onlyR-134A/410 refrigrant gas with testingn under Sch ‘A’ item 3 here inabovecomplete, all as specified and directed. |
| 42 | Heater Element size and capacity as per existing Watre heater Generator 100/54 KWcomplete, all as specified and directed. |
| 43 | Supply of lubricating oil anti freezing for refrigeration in factory sealed container of standardcapacityfor filling under Sch ‘A’items No 3 complete,all as specified and directed. Make: Servo froze -68-10c of IOC. |
| 44 | Supply fixing and testing in replacement of UNSVpre filter with GI sheet frame of size 610mm x 610mm x 50mm deep suitable for Air handling units of air conditioning plantsincluding efficiency90% , down to 10-20microns, Initial Pressure drop- 2.5 mm WG, filter media shall be Synthetic Non Woven with Both Side HDPE Mesh, and testing complete complete, all as specified and directed. |
| 45 | Supply fixing and testing in replacement of UNSV condencer safety valve of size3/4"& ½”, for pressure 300 PSI with and Including 3/4"&½”, mild steel socketduly welded on condenser ensuring perfectly leak proof joint with pressure testingcomplete all as specified and directed. |
| 46 | Supply fixing and testing in replacement of UNSV thermostatic expansion valve (R-22) suitable for 80 TR capacity of central AC plantcomplete, allas specified and directed. |
| 47 | Supply fixing and testing in replacement of UNSV water pressure gauge 100 mm dia of range0 to 100 PSI suitable for central AC plant complete all as specified & directed. |
| 48 | Supply fixing and testing in replacement of UNSV Gas pressure gauge 100 mm dia of range0 to 300 PSIsuitable for central AC plant complete all as specified & directed. |
| 49 | Supply fixing and testing in replacement of UNSV Water flow switchfor condenser and chiller suitable as per existing AC Plant Make :Carrior (Screw Chiller Unit) complete, all as specified and directed |
| 50 | Supply fixing and testing in replacement of UNSV sensor for low pressure/High Pressure/Oil Pressureswitch suitable for as per existing suitable for AC Plant Make :Carrior (Screw Chiller Unit) complete, all as specified and directed |
| 51 | Supply fixing and testing in replacement of UNSV Loading/ unloading coil suitable for as per existing AC Plant. Make :Carrior (Screw Chiller Unit)complete, all as specified and directed |
| 52 | Supply fixing and testing in replacement of UNSV PVC Fills of FPRcooling towersize 600mmx300mmx 150 mm complete, all as specified and directed |
| 53 | Disconnecting and removing old existing non functional electric motor,of any description and in any position from existing platform for compressor/blowers/pumps/ cooling towers and dismantling and strip opening of the motor, for cleaning oiling/greasing and fixing of serviceable parts in position andremoving the old existing burnt windings, cleaning the slots & rewinding of the electric motorwith existing gauge super enameled copper wire, including insulating material such as illuminous paper, Letherized paper, cotton tape, glass sleeves insulating varnish etc for poweringcompressor /blowers /pumps / cooling towers and transportation to site & refixing on existing platform ,connecting with exising connections & testing on full load complete all as specified and directed for following capacity :- . |
| 54 | 5.0 HPcapacity, Three phase 50 Hz AC supply |
| 55 | 7.5 HPcapacity, Three phase 50 Hz AC supply |
| 56 | 10 HP capacity, Three phase 50 Hz AC supply |
| 57 | 15 HP capacity, Three phase 50 Hz AC supply |
| 58 | Disconnecting and removing old existing non functional electric motor,of any description and in any position from existing platform for pumps and dismantling and strip opening of the motor, for cleaning oiling/greasing, Replaceing UNSV suitablesize of bearing and fixing ofbearing, imppler serviceable parts in position pumps and transportation to site & refixing on existing platform ,connecting with exising connections & testing on full load complete all as specified and directed for following capacity :- |
| 59 | 5.0 HPcapacity, Three phase 50 Hz AC supply |
| 60 | 7.5 HPcapacity, Three phase 50 Hz AC supply |
| 61 | 10 HP capacity, Three phase 50 Hz AC supply |
| 62 | 15 HP capacity, Three phase 50 Hz AC supply |
| 63 | Supply fixing,connectingand testing in replacement of UNSV3 pole Power contactor with 2NO + 2NC auxiliary contacts, coil voltage 220 volts, AC3 rating 16Amps complete all as specified and directed. Make L&T or equievelent model of specified and directed. |
| 64 | Supply fixing and testing in replacement of UNSV3 pole Power contactor with 2NO + 2NC auxiliary contacts, coil voltage 220 volts, AC3 rating 25 Amps complete all as specified and directed . Make L&T or equievelent model of specified and directed. |
| 65 | Supply fixing and testing in replacement of UNSV 3 pole Power contactor with 2NO + 2NC auxiliary contacts, coil voltage 220 volts, AC3 rating32 Amps. Complete all as specified and directed . Cat part No SS90935- Type ML-10 of make L&T or equievelent model of specified and directed., |
| 66 | Supply fixing and testing in replacement of UNSV 3 pole Power contactor with 2NO + 2NC auxiliary contacts, coil voltage 220 volts, AC3 rating 50Amps. Complete all as specified and directed . Make L&T or equievelent model of specified and directed. |
| 67 | Supply fixing and testing in replacement of UNSV 3 pole Power contactor with 2NO + 2NC auxiliary contacts, coil voltage 220 volts, AC3 rating 70Amps. Complete all as specified and directed .Make L&T or equievelent model of specified & directed |
| 68 | Supply fixing and testing in replacement of UNSV bimetal overload relays directly operated & directly mounted on ML type Power contactor for relay range of 06 to 18 Amps complete all as specified and directed. Make L&T or equievelent model of specified and directed.. |
| 69 | Supply fixing and testing in replacement of UNSV bimetal overload relays directly operated & directly mounted on ML type Power contactor for relay range of 19 to 30 Amps complete all as specified and directed. Make L&T or equievelent model of specifiedand directed. |
| 70 | Supply fixing and testing in replacement of UNSV bimetal overload relays directly operated & directly mounted on ML type Power contactor for relay range of 32 to 45 Amps complete all as specified and directed. Make L&T or equievelent model of specified and directed. |
| 71 | Supply fixing and testing in replacement of UNSVdigital type of size 96mm x 96mm, AC Volt meter 0- 500 Volts including wiring with 1.5 Sqmm PVC insulated stranded copper conductor cable complete all as specified and directed. |
| 72 | Supply fixing and testing in replacement of UNSVdigital type of size 96mm x 96mm, AC Amp meter 0- 200 Amps with including 3 Nos C.T of Ratio 200/5 of class-1.0 including wiring with 1.5 Sqmm PVC insulated stranded copper conductor cable complete all as specified and directed. |
| 73 | Supply fixing and testing in replacement of UNSV insulated connectors 4 pole 100 amps rating including testing complete, all as specified and directed |
| 74 | Supply fixing and testing in replacement of UNSV insulated connectors 4 pole 63 amps rating including testing complete, all as specified and directed |
| 75 | Supply fixing and testing in replacement of UNSV Electronic timers415 Volts, 50 Hz, AC supply, with delay period of 9-30-Seconds complete all as specified and directedf make L&T or equievelent model of specified make as approved by the GE |
| 76 | Supply fixing and testing in replacement of UNSVpush button ON/OFF complete in the existing panel Complete connecting electrically all as specified and directed |
| 77 | Supply fixing and testing in replacement of UNSVindicator light red/yellow /green complete in the existing panel Complete connecting electrically all as specified and directed |
| 78 | Supply, fixing, connecting and testing in replacement of UNSVthermostate heating/cooling of any description complete,all as specified and directed. |
| 79 | Supply, fixing, connecting and testing in replacement of UNSV MCCB Triple pole, 250 Amps 415 volts, 50 Hz having breaking capacity 35/36 KA , with adjustable thermal and fixed magnetic setting fixed in existing panel Complete all as specified and directed. Make : L&T /INDO ASIAN/Havells |
| 80 | Supply, fixing, connecting and testing in replacement of UNSVMCCB Triple pole, 200 Amps 415 volts, 50 Hz having breaking capacity 36 KA , with adjustable thermal and fixed magnetic setting fixed in existing panel Complete, all as specified and directed. Make : L&T /INDO ASIAN/Havells |
| 81 | Supply, fixing, connecting and testing in replacement of UNSVMCCB Triple pole, 100 Amps 415 volts, 50 Hz having breaking capacity 25 KA , with adjustable thermal and fixed magnetic setting fixed in existing panel Complete, all as specified and directed. Make : L&T /INDO ASIAN/Havells |
| 82 | Supply, fixing, connecting and testing in replacement of UNSVHoneywell CN7510A2001 valve actuator suitable for existing air cooled air conditioner plant 45 TR complete, all as specified and directed. (Installed at Large OpticsBuilding) |
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