Military Engineer Services-MES has published Repair / Maintenance Of Ac Plants, 3 Phase Split Acs And Allied Works At Stns Under Ge ( Af ) Chabua Repair / Maintenance Of Ac Plants, 3 Phase Split Acs And Allied Works At Stns Under Ge ( Af ) Chabua. Submission Date for this Tender is 12-10-2021. HVAC Tenders in GE (AF) CHABUA Assam. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 04-Oct-2021 | Revised BOQ | BOQ | 12-10-2021 |
| Sl. No. | Item Description |
| 1 | Descaling the condenser and circulating the descaling solution (hydrochloric acid) with pump brushing the tubes and wherever required stubborn sealing without damaging the tubes replacement of gasket and drilling the unserviceable nuts & bolts assembling back for the following capacity:- |
| 2 | (a) 3 X 24 TR |
| 3 | (b) 2 X 12 TR |
| 4 | Stripping out the dirty pre filter/re-filter from AHU and complete cleaning of filter, using by air blower/fresh water system and drying in sun after refixing as same as per the standard practice for 3X24 TR & 2X12 TR in various AC Plant all as specified and directed. |
| 5 | Supply and fixing in repair Thermometer for measuring the water temperature having range (0 to 50) °C complete all as specified and as directed. |
| 6 | Stripping out for servicing/overhauling and rewinding of 3 phase 415 volt 50HZ, CT fan motor as following capacity motor including renewal of the wear out spare parts like 02 bearing, Greasing, varnish heating /drying and painting of the motor, all as specified and as directed. |
| 7 | (a) 01 HP |
| 8 | (b) 02 HP |
| 9 | Disconnecting and removing the electric mono block type pump motor of cap 7.5 HP 415V from the installed position and loading, unloading and transporting to authorized nearest workshop for rewinding, servicing/overhauling with super enameled copper winding wire of existing gauge incl all insulating materials such as insulation paper, sleeves, tape varnish heating/drying and replacement of 02 Nos ball bearing, new bronze impellor, greasing and gland packing complete all as specified and as directed. WSA AC Plant |
| 10 | Supply and charging in top up of refrigerant gas R-22 complete all as specified and as directed. |
| 11 | Supply and charging in top up refrigerant gas R-407 complete all as specified and as directed. |
| 12 | Supply and pouring in top up compressor oil capila D complete all as specified and as directed. |
| 13 | Supply & Fixing in repair V belt (V Belt no. B-69) for compressor unit complete all as specified and as directed. |
| 14 | Supply & Fixing in repairV belt driving V Belt no. A-21 for AHU chamber complete all as specified and as directed. |
| 15 | Supply & Fixing in repair 3 Pole aux power contractor- Type MNX 32, 55 Amps complete all as specified and as directed. |
| 16 | Supply & Fixing in repair contractors AC type operated 03 Pole 30 A complete all as specified and as directed. |
| 17 | Supply & Fixing in repair on Auxiliary contractors block, first left /first right Each 01NO+01NC complete all as specified and as directed. |
| 18 | Supply & Fixing in repairthermal over load relay range 3.5-5 amps complete all as specified and directed. |
| 19 | Supply & Fixing in repairthermal over load relay range 1-1.4 amps complete all as specified and directed. |
| 20 | Supply and fixing in repair oil gauge upto 12 Kg/cm², complete all as specified and directed (as per sample). |
| 21 | Supply and fixing in repair compound pressure gauge for gas 0 to 150 PSI, complete all as specified and directed (as per sample). |
| 22 | S&F in repairLPpressure switchall as specified and directed. |
| 23 | S&F in repairHighpressure switchall as specified and directed. |
| 24 | Supply & Fix in repair of thermostat switch all as specified and directed. |
| 25 | Supply & Fix in repair of dryer 5/8 all as specified and directed. |
| 26 | Supply & Fix in repair of dryer 1/2 all as specified and directed. |
| 27 | Supply & Fix in repair expensation valveall as specified and directed. |
| 28 | Supply and fixing in repair0-150 water line pressure gauge 100 mm dia complete all as specified and directed. |
| 29 | Supply and fixing in repair sensors suitable for 12 TR AC Plant complete all as specified and as directed. |
| 30 | Supply & Fix in repair condenser suitable for 5.5 TR compressor all as specified and directed. |
| 31 | Supply and fixing in repairsensors suitable for 24 TR AC Plant complete all as specified and as directed. |
| 32 | Supply and fixing in repair contactor type ML -2 04 Pole 32 A complete all as specified and directed. |
| 33 | Supply and fixing in repair power circuit board(Mother Board) for 5.5TR 3-phase complete all as specified and as directed. |
| 34 | Supply and fixing in repair power circuit board(Mother Board) for 24 TR 3-phase complete all as specified and as directed. |
| 35 | Shifting /Transporting repairable out door 03 phase 50 HZ split /ductile AC 3TR from various location (Chabua) to contractor’s workshop for repair & replacement of compressor unit, jointing by brazing leakage checking vacuum, servicing, overhauling including cleaning of air filter checking of wiring and rectification of any nature of defects, replacing only of spares as condenser PCB repair, contactor repair, complete refrigerant charge required and refixing at the site of removal complete machine and testing complete. Note:- Repair work would be carried out respective items of this schedule accordingly measured and paid separately. |
| 36 | Supply, commissioning & testing scaled type Reciprocating compressor unit of capacity 03 TR. R-22 complete all as specified and as directed. Note:- R-22 gas shall be measured and paid complete all as separately. |
| 37 | Supply and fixing in repair Indoor pvc fan blower 03 TR unit complete all as specified and directed. |
| 38 | Dismantling and taking down carefully u/s indoor electronic type power circuit board at existing location repair by artisan & refixing testing of split type AC of capacity 03 TR complete unit all as specified and directed. |
| 39 | Dismantling and taking down carefully u/s outdoor electronic type power circuit board at existing location repair by artisan & refixing testing of split type AC of capacity 03 TR complete unit all as specified and directed. |
| 40 | Supply and fixing in repair power circuit board(Mother Board) indoor/outdoor type for 3 TR split AC, 3-phase complete all as specified and as directed. |
| 41 | Supply and fixing in repair single phase preventor complete all as specified and directed. |
| 42 | Supply & fixing in repairdigital panel meter VAF+PF (square type 96X96mm) input voltage measurement range 17-520 VAC (P-P) complete all as specified and directed. |
| 43 | Supply & fixing in repairthermal overload relay range 20-33 Amps complete all as specified and directed. |
| 44 | Supply & Fix in repair indoor fan motor suitable for 3 TR split AC all as specified and directed. |
| 45 | Supply & Fix in repair outdoor fan motor suitable for 3 TR split AC all as specified and directed. |
| 46 | Supply & Fix in repair fan blade (indoor door) 24" suitable for 3 TR split AC all as specified and directed. |
| 47 | Supply & Fix in repaircommissioning & testing sealed type scroll compressor unit of capacity 5.5 TR. R-407, 03 phase 50HZ complete all as specified and as directed. Note:- R-407 gas, shall be measured and paid separately. |
| 48 | S & F in repairs, Keniform of best qualityfor split type AC to insulation copper pipe complete all as specified and as directed. |
| 49 | Supply & Fix in repair copper pipe 5"/8" suitable for 3 TR split AC all as specified and directed. |
| 50 | Supply & Fix in repair copper pipe 3"/8" suitable for 3 TR split AC all as specified and directed. |
| 51 | S&F in repair of Condensor Safety valve Size 3/8” complete all as specified and as directed. |
| 52 | S&F in repaircontactor 9-30 Amp complete all as specified and as directed. |
| 53 | S&F in repaircontactor MNX-18 complete all as specified and as directed. |
| 54 | S&F in repairfan assembly of cooling tower capacity 40TR size 1200 mm complete all as specified and as directed. |
| 55 | S&F in repairwater distribution system for cooling tower capacity 40TR complete all as specified and as directed. |
| 56 | S&F in repairFRP Compound for repair of FRP cooling tower complete all as specified and as directed. |
| 57 | S&F in repairPVC Eliminator 24 TR capacity of cooling tower complete all as specified and as directed. |
| 58 | S & F in repair expensation valve for 5.5 TR, 3 Phase AC Plant including taking down complete all as specified and as directed. |
| 59 | Supply & Fix in repair MCB TPN of 10-32 A all as specified and directed. |
| 60 | Supply & Fix in repair cooling coil suitable for 5.5 TR AC all as specified and directed. |
| 61 | Supply & Fix in repaircommissioning & testing sealed type scroll compressor unit of capacity 5.5 TR. R-407, 03 phase 50HZ complete all as specified and as directed. Note:- R22 gas, shall be measured and paid separately. |
| 62 | Supply & Fix in repair drain pipe suitable for 3TR split AC all as specified and directed. |
| 63 | Supply, Commissioning & testing in repair scaled type Reciprocating compressor unit of capacity 12 TR. R-407 all as specified and directed. Note:- R-407 gas shall be measured and paid complete all as separately. |
| 64 | Disconnection, taking down anddismantlingincluding necessary servicing & testing ofDehumidifier of 3 KVA capacity all as specified and directed. Note:- Necessary parts require for repairshall be measured and paid separately |
| 65 | Supply only heating element suitable for 3 KVA capacityDehumidifier all as specified and directed. |
| 66 | Supply only thermostat suitable for 3 KVA capacity Dehumidifier all as specified and directed. |
| 67 | Supply & Fix in repair Switch fuse unit Triple 415V AC, 50 Hz with neutral link complete all as specified and as directed. |
| 68 | Disconnection, taking down, dismantlingincluding necessary testing for Voltage stabilizer 15 to 50 KVA capacity and necessary repair work/labour only for replacement of barrier assembly/ limbs complete. (a) Transportation of voltage stabilizer from Chabua (different sub station) to Dibrugarh/Tinsukia workshop for repair and transporting back after repair. (b) Opening top cover carefully without damaging any part and detecting the fault/defects in core by testing . (c) Disconnecting the defectivecoil and rewinding the same with suitable gauge of super enamelled copper conductor as per the existing size for the limbs as required at site. (d) Heat varnishing by putting the complete limbs/core assembly into heat chamber. (e) Cleaning, decarburizing, and dislodging of inner chamber by draining out transformer oil, cleaning all terminal points and leads and replacement of unserviceablenut bolt, washers,studs, spindles, refilling the container with transformer oiland replacement ofgasket complete. (f) Replacement of defective studs complete. (g) Preparation of surface area of voltage stabilizer by complete removing of existing painting and repainting ofstabilizer complete (after reassembling) with two coats of synthetic enamel paint over a coat of red oxide primer (using spray machine) all as specified and directed( colour of paint to be as per existing colour code norms including necessary Denting/welding & Writing MES No & SM No). Note : Repair work would be carried out respective items of this schedule accordingly measured and paid separately. (h) Reassembling, reinstallation at original location or as directed including restoration of electrical connection, commisioning and testing on load complete all as specified and as directed. |
| 69 | All as per item No. 64 here in before but Voltage Stabilizer of 75 to 500 KVA complete all as specified and as directed. |
| 70 | Supply and rewinding of super enamelled insulated copper winding wire of23-35 gauge for stabilizer 3 phase,20 to 500 KVA, complete all as specified and as directed. |
| 71 | Supply onlyPush button switch for the voltage stabilizer, complete all as specified and as directed. |
| 72 | Supply only Auto manual switch for the voltage stabilizer, complete all as specified and as directed. |
| 73 | Supply onlyDPDT for the voltage stabilizer, complete all as specified and as directed. |
| 74 | Supply onlyMicro switch switch for the voltage stabilizer , complete all as specified and as directed. |
| 75 | Supply onlypanel lamp for the voltage stabilizer , complete all as specified and as directed. |
| 76 | Supply onlyPotentiometerof capacity 01-100 kilo ohms for the voltage stabilizer, complete all as specified and as directed. |
| 77 | Supply only Digital volt meter of size 96 x 96 sqm square, surface mounting type, O-500Vfor the voltage stabilizer, complete all as specified and as directed. |
| 78 | Supply onlyDigital ampere meter with C.T. 0-100 Amps size 96 x 96 Sqm, square, surface mounting type for the voltage stabilizer , complete all as specified and as directed. |
| 79 | Supply onlyAnalog, voltmeter of size 96 x 96 sqm, square, surface mounting type, 0-300V for the voltage stabilizer, complete all as specified and as directed. |
| 80 | Supply only Analog ammeters, with CT, 0-100 Amps square type, size 96 x 96 sqm, surface mounting type for the voltage stabilizer , complete all as specified and as directed. |
| 81 | Supply only Electronic circuit card ( P.C.B.) for the voltage stabilizer, complete all as specified and as directed. |
| 82 | Supply only Micro processor based control card for each phase for the voltage stabilizer, complete all as specified and as directed. |
| 83 | Supply only P.C.B. holder for the voltage stabilizer, complete all as specified and as directed. |
| 84 | Supply only Trigger Transformer for the voltage stabilizer, complete all as specified and as directed. |
| 85 | Supply only Rotary switch 5 Amp for R. Y. B. phases for the voltage stabilizer , complete all as specified and as directed. |
| 86 | Supply onlyServo motor 3 K.G. torque for the voltage stabilizer , complete all as specified and as directed. |
| 87 | Supply onlyServo motor 10 K.G. torque for the voltage stabilizer , complete all as specified and as directed. |
| 88 | Supply onlyResistancecapacitor (R.C) net work for 3K.G. motor for the voltage stabilizer , complete all as specified and as directed. |
| 89 | Supply onlyResistancecapacitor (R.C) net work for 10 K.G. motorfor the voltage stabilizer , complete all as specified and as directed. |
| 90 | Supply onlyCarbon brushfor the voltage stabilizer , complete all as specified and as directed. |
| 91 | Supply onlyBall bearing No 6205 complete all as specified and as directed. |
| 92 | Disconnect and openingthe voltage stabilizer 25-500KVA and detecting anytype of faultby checking the push button, PCB, Carbon and cleaning/ tightening of lose connection, including replace/maintenance of minor parts only and servicing of complete system all as directed. Note:- Replacement of major component if required will be measured and paid separately under relevant item. |
| 93 | Schedule of Credit |
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