|
| 1 | M&L forPreventive & Comprehensive Maintenance of CENTRAL AC CHILLER PLANT of 3x100 TR Capacity at TECH AREA, strictly through OEM i.e. M/S VOLTASfor the PLANT and Equipment of Model No. BGWFXR1001MLPT2, complete all as specified and as directed. The Scope of Work is as specified under SECTION I & SECTION II here-in-below:-A.SECTION I(a)Servicing for all the Equipments under this Item shall be done Four Times during the Contract Period as per Standard Check Lists.(b)All Breakdown Calls will be attended and rectified Promptly during the Contract Period. |
| 2 | B. SECTION II(a) The Compressor will be Checked for Proper Functioning and if any Defect is found, the same will be repaired immediately.(b) Safety Controls such as Pressure Cut outs will be tested for proper Function -ing and in case of any Malfunctioning they will be either Repaired or Replaced accordingly.(c) Air Filters will be Inspected and Cleaned as and when necessary.(d) Cooling Coil will be Inspected and Cleaned, if necessary.(e) Blower Motor will be Checked and any Defects noticed will be attended and rectified Promptly.(f) The Driver Set of the Blower Section will be Inspected, Belt Tension Adjusted and Belts to be changed, if necessary.(g) Any Defect in the Electrical Items and Control Wiring will be attended and rectified Promptly.(h) Refrigerant Gas will be Topped up in the System as and when necessary will be paid separately . |
| 3 | M & L for isolation of the system, draining of existing compressor lub oil from compressor and filling new Synthetic oil , solest 120 including necessary transportation upto the site all as specified and directed by Engineer-in-charge. |
| 4 | M & L for recharging/topping up 134 a / R 22 gas as per requirement including necessary transportation upto the site all as specified and directed by Engineer-in-charge. |
| 5 | M & L for removal and replacement of existing suction pressure transducer all as specified and directed. |
| 6 | M & L for removal and replacement of existing temperature transducer all as specified and directed. Make : Danfoss/Setra or equivalent |
| 7 | M & L for removing and replacing of drier core existing liquid line filter drier including all as specified and directed by Engineer-in-charge. Make : Sporlin/Alco/Danfoss or equivalent |
| 8 | M &L in replacement of old u/s condenser water flow switch by providing new water flow switch of existing model all as specified and directed Make: Honeywell / Danfoss or equivalent |
| 9 | M & L for rewinding of chiller electric motor of cap 12.5 HP by dismantling and opening up of MOTOR AC, Three phase, 415 Volts, 50 Hz, Squirrel cage Induction motor, removing burnt out winding wires complete, cleaning stator and rotor assembly, rewinding the stator with same guage and type of insulation copper conductor winding wires and insulation sheets , applying insulating varnish over the complete winding , drying up by heating , assembling back the stator and rotor including replacement of terminal blocks and terminal bolts and nuts, both end bearings with same size / make complete including necessary transportation to & fro upto the site all as specified and as directed by Engineer-in-charge.(Note: Rate quoted should be deduction for credit of old burnt retrieved copper wires from the motor) |
| 10 | All as per item No 08 here-in-before but M & L for rewinding of condenser electric motor of cap 15 HP |
| 11 | All as per item No 08 here-in-before but M & L for rewinding of cooling tower electric motor of cap 5 HP |
| 12 | M & L for Removal of existing pressure gauge along with siphon and cock and replacing with new dial type pressure gauge with range of 0 to 150 Psi, along with siphon and cock complete including necessary transportation upto the site all as specified and as directed by Engineer-in-charge. Make : Waree/Wikai/Kains or equivalent |
| 13 | M&L for De-canning of refrigerant form chiller No 02 &3 rectification of external leak, replacement of angle cock, vacuumising of the system, refilling of refrigerant and commissioning complete all as specified and directed. Note: Additional refrigerant if required shall be measured and paid separately. |
| 14 | M & L for Isolation of Condenser water pump motor power removal of existing star delta contactor and replacing with new 3TF34 , 32 Amps 3pole, 440V, 2NC NO and 230V coil contactor complete including necessary transportation upto the site all as specified and as directed. Make L&T/Seimens/Schneider or equivalent |
| 15 | All as per item No 09 above but of Chiller water pump motor contactor 3TF30 , 20 Amps |
| 16 | M & L for Isolation of Power removal of existing single phase preventer, supply and replace with VSPD1 single phase preventer 440 V. complete including necessary transportation upto the site all as specified and as directed by Engineer-in-charge. Make : Minilec/leader/seimens or equivalent |
| 17 | M & L for expansion valve controller or MCS-EXV-Driverremoval of existing old unserviceable one, supply and replace with Model No. EXV Driver Ver : UC-5011 supply voltage 110V-240VAC ±10% and Model Serial No UC/2K13J/EXV-029 complete including necessary transportation upto the site all as specified and as directed by Engineer-in-charge. Make : Micro Control System/Siemens or its equivalent. |
| 18 | M & L in replacement of Power contactor of existing three phase suitable for motor disconnect with model No DMT02ATEXF001 or 3RV1021-4CA10, supply and replace with the same complete including necessary transportation upto the site all as specified and as directed by Engineer-in-charge. Make : Minilec/leader/Siemens or equivalent |
| 19 | M & L in replacement of timer for setting time range 3-60 Second, rated voltage 240V, 50 Hz with model No 3RP15761NF308K, supply and replace with the same complete including necessary transportation upto the site all as specified and as directed by Engineer-in-charge. Make : Minilec/leader/Siemens or equivalent |
| 20 | Supply and installation in replacement of Fills of 600x300x150mmm with GI supports. PVC fills Honey comb Design, Double edge folded, Corrugated type, Thick 0.2-0.3mm, Flute size 12mm. |
| 21 | S&F in replacement 25Kvar capacitor of 440 Volts, 50 Hz and 32.8 Amps load current, cylindrically shaped all as specified and as directed by engg-in-charge.Make: Epcos or equiv as per site. |
| 22 | M&L in replacement MCCB 4 pole 80A, 415 Volts with 25KA breaking capacity suitable in the existing panel of AHU room all as specified and as directed. Make: Havells or equiv |
| 23 | S&F in repairs digital ammeter 3 phase 0-500A, Make: Enersol TPA-04 or equiv for suitable fixing in the panel board |
| 24 | S&F in replacement of butterfly valve with MS flange with long lever type for cooling tower of 125mm size. Make: Jindal or equiv |
| 25 | S&F in replacement of butterfly valve with MS flange with long lever type for cooling tower of 100mm size. Make: Jindal or equiv |
| 26 | S&F in replacement MS pipe heavy duty 40mm, with necessary fittings like pipe supporters, elbows, tees and reducers fixed in place and paint with epoxy complete all as specified and directed. |
| 27 | S&F in replacement 3.5x400 sqmm cross sectional XLPE insulated cable, armoured, heavy duty aluminium conductor connected from changeover panel to main panel of AC plant including termination with suitable lugs all as specified and as directed. Make: Havells/Polycab or equiv with ISI. |
| 28 | Supply and installation in replacement of MS C class pipe with Double coat anti corrosion paint Water Collection Tank of cooling tower. Make: Jindal/.300mm Pipe or suitable. |
| 29 | M&L for fixing in repairs MCCB, 3 phase, 50 Hz, 4 pole 630 Amps, 50 KA, with thermal magnetic release, adjustable overload and short circuit characteristic all as specified and as directed. Make : L&T/Havells/ Indo asian |
| 30 | M&L for servicing Monoblock pumps including dismantling and opening the pump, replace the worn out bearing,stuffing box, back plates, gland packing mechanical seal and rusted nut, bolts etcassembling property, greasing all movable parts, Painted with two coats of synthetic enamel paint including painting of base frame with two coats of red oxide and one coat of black anti corrosive paintfixing in position, testing and commissioning complete all as specified and as directed for the following HP pumps. |
| 31 | a)12.5HP |
| 32 | b)15 HP |
| 33 | M&L Nitrogen Gas Pressure Testing by Pressurising with Nitrogen Gas upto 300 psi the Complete System to Finding out any Leakage & Maintaining Pressure for 24 Hours and Rectifying Leakages in the System, Vaccumising Complete System of Central AC Plant with Double Stage Vacuums Pump, complete all as specified and as directed. |
| 34 | Taking down extg damaged board from installation and S&F glow sign board with steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS 1162 -1998 grade St 240 also S&F mild steel sheet thickness 1.25mm plain back sheet in wall cladding ,cut to size hole punched ,incl round healed screws fixed to wall with suitable size LED board incl suitable number of LED light fittings for proper illumination all as specified and directed by Engr-in-charge. Note:- Content of board will be provided by Engr-in-Charge. |
| 35 | S&F Printed Circuit Board (PCB) forAC Plant Unit 100TR of MAKE : BLUE STAR or as approved by GE, providing Connections including Taking down Old Unserviceable One, complete all as specified and as directed. |
| 36 | Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised earth strip 32x6 mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion includingprovision of 40 mm GI Tubing, light grade and watering pipe shall be 20 mm bore GI light grade including excavation & earth work, PCC pit with CI cover, Charcol, salt, funnel, wire mesh, GI strip Up to 7.5 mtrs length complete all as specified and directed. |
| 37 | Material & Labour for Earth continuity conductorfixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32 x 6 mm dia galvanised iron strip |
