COMPREHENSIVE MAINT AND REPAIR OF AC PLANTS AND OTHER ALLIED WORKS AT CME UNDER GE (CME) KHADKI

Amount

Routine preventive services monthly visit and attending faults on call basis of Screw chiller plant of 2x92 TR complete including at the time of monthly visit by OEM ( Blue star) flowing descricpition of work - checking of all starter contacts, cable for over heating & termination for tightness, leak test, heater operation , liquid line sight glass, load / Unload mechanism, Calibration of sensor, verifying set point setting, verifing all safety devices, Controls and electrical starter contacts, compressor for overheating/ liquid slugging, compressor and refregrednt piping for sign of excessive vibration and abnormal noise, flow switch operation, compressor rotation after stopping ( for reserve rotation), condition of liquid level indicator, busbar and cable for loose termination,electrical switchboard for sign of carbon deposits, pitting of contacts, switches, indication lamp, starter and interlocking and refrigeration readings, electrical readings, water reading and air reading including calibration of microprocessor control panel , adjustment of switces and sensor and test for satisfactory running of chiller and visit service report submit complete all as specified and directed by Engineer in Charge.

Material and labour in repair for descaling of shell and tube type water cooled condenser of capacity 92 TR with and including MS shell and intergral copper tubes with and including safety valve with and including cleaning agent including nitrogen flushing / descaling compound and through cleaning with descaling nylon brush with and including rod and circulating by descaling pump including repalcement of gasket set, nuts and bolts and leak testing after descaling / cleaning of condenser unit descaling/Servicing done every 6 month Complete all as specified and directed by Engr in Charge

Material and labour in repair for chipping of insulation and opening of end plate for cleaning and washout of foreign material and scale and deposits of chiller unit Direct Expansion, shell and tube type 92 TR capacity with and including cleaning agent including nitrogen flushing and through complete cleaning nylon brush including replacement of gasket set, nuts, bolts and EPDM insulation on both ends, faces matching to existing chillar insulation complete all as specified and directed.

Material and labour in repair for disconnecting electrical connections motor located at the top of cooling tower,keep cables at safe custody for reconnection and dismantling and taking out fan blade assembly along with motor mounted on base frame at the top of cooling tower after cutting/dismentaling all nuts, bolts and fixtures from the mounting frame and removing whole assembly including motor and base frame from the top of cooling tower with the help of necessary T and P for servicing of cooling tower suitable for 184 TR capacity comprising of following Complete all as specified and directed :- (i) Cleaning /scrapping of inner and outer surface of FRP basin, repair of damaged portion if any incuding FRP lining of all surfaces joints to avoid leakage including replacement of all nuts and bolts joining all parts of Basin complete. (ii) servicing cooling tower plant through cleaning re-agent complete pipe line, including servicing of cooling tower motor and fan and make the necessary alignment with motor. (iii) Replacement of bearing if any of suitable capacity if any after necessory work including greasing and replacement of nut bolts and preventing leakage if any by means of suitable adhevies etc Complete all as directed and specified. (iv) Taking out PVC fills blocks, cleaning and refixing as per existing location and channel direction. (v) Replacement of velt as per existing (vi) Servicing of sprinkler assembly complete. (vi) Repair of water strainer complete. Servicing done every 6 month Complete all as specified and directed by Engr in Charge.

Material and labour in repair for disconnecting electrical connections, refrigerent piping, and water piping, servicing, Repair and Over hauling of AHU for Air handling unit , sectionalized construction of capacity 6000cfm to18000 Cfm, removing dust, dirt, foreign material deposited on cooling coil fins with suitable ditergent, Cleaning / de-carbunising of pre and post air filters of shaft and reinstalled in same position with correct alignment after cleaning /repairing, remove the all rust from shaft by matchinery work, polishing matching to existing and rebalancing of shaft including Servicing and testing of blower drum assembly for proper functioning and balancing, testing, commissioning complete for achieving desired performance including supply and fixing minor parts shall replacement as required to achive noise free operation complete all as specified and directed. Note : (i) Minor spares such as gland packing, velt, gaskets, nuts, bolts, grease, various rings deemed to be included in the quoated rates. (ii) Major spares such as heater,filter etc will be measured & paid seperately under respective items of Sch. Servicing done every 06 month

Supply only Heater Rod 3KW, suitable for 1 PH, 415V AC supply as per sample.Complete all as specified and directed

Supply only Terminal heater plate suitalble for a and b Nos of heater rods including control circuit.Complete all as specified and directed

Supply only Thermostate and control switch ON/OFF assembly

Supply only 10 Micron Filter class for FLANGE TYPE AHU complete all as specified and directed

Supply only 5 Micron Filter class FLANGE TYPE for AHU complete all as specified and directed

Material & labour for Overhauling Centrifugal Pump set by dismantling of pump set and taking out wornout spare partsopening, cleaning, greasing including replacement of wornout spare parts including cleaning, oiling/greasing of rotating parts, metalling, grinding of pump shaft/ shaft sleeves and re-assembling the same after repairs etc. transportation, reinstalling back on its original place and testing complete for 7.5 HP Pump sets complete all as specifed and as directed. Note : (i) Minor spares such as gland packing, gaskets, nuts, bolts, grease, various rings deemed to be included in the quoated rates. (ii) Major spares such as shafts, bearings, impellar, throught bush, coupling will be measured & paid seperately under respective items of Sch.

All as item no 11 but 10 HP

Supply only bearing of 7.5 HP pumpset

Supply only bearing of 10 HP pumpset

Supply only Shaft sleeve of 7.5 HP

Supply only Impeller of 7.5 pumpset

Supply only Impeller of 10 pumpset

Supply only Mechanical Couplings/seal for Pumpset 7.5 HP to 10 HP pumpset

Disconnecting the electrical and mechanical connection of burnt electrical motor of capacity 7.5 HP from the site / location, transporting to and from to work shop, rewinding of electrical motor/ pump motor by dismantling and removing the burnt cut copper winding wire, cleaning the slots of stator with petrol and brushes, winding polyster based super enamelled copper wire of same gauge of original one with proper class of insulation including varnishing and heating the coil and remove air bubbles complete stator / roter after rewinding, reassembling all parts including reinstalling connection to original position and testing on full load Complete all as specified and directed

All as per item No 19 but 10 HP

Material and labour in repair for locating and identifing gas and oil leakage and removing the same and Leak repairing by brazing/flaring of tubings of central type AC Plant of capacity 2x92 TR by leak testing, leak repairing, pressure testing with nitrogen, vaccumising complete system of central type AC plant with and including double stage vaccume pump of atmospheric pressure less than 28 mm to 30mm/HG and charging of refrigerant gas and top up of compressure oil upto required after satisfactory results complete all as specified and directed. Notes : (i) Supply only (item No. 22-24) of Refrigerant gas, Nitrogen Gas and compressor oil will be measured and paid under relevent item of work.

Supply Only Refrigerant gas in returnable company sealed cylinder of 61kg each with test certificate of cylinder Complete all as specified and directed. Make : Mafron/Feron or Techno commercial equivalent A49:F57as approved by GE. Note : (i) Hire charges of cylinder shall be deemed to be included in quoated rates. (ii) Refrigerant Gas shall be incorporated under respective item of Sch (A) or where ever required.

Supply only Nitrogen Gas at required pressure for leak testing of central A/C plant Complete all as specified and directed (i) Nitrogen Gas shall be incorporated under respective item of Sch (A) or where ever required.

Supply only compressure oil

Servicing to power control panel 184TR Capacity including replacement of unserviciable internal wiring of panel cleaning of panel tightning of loose nuts and bolts and replacement of coreded nuts and bolts etc,complete all as specified and directed.

Servicing to microprocessor control panel184TR Capacity including replacement of unserviciable internal wiring of panel cleaning of panel tightning of loose nuts and bolts and replacement of coreded nuts and bolts etc,complete all as specified and directed.

Supply and fix in replacement wornout crankcase heater of compressor as per existing specifications Complete all as specified and directed

Supply and fix in replacement shaft seal assembly for vaious models of compressors as per existing specifications Complete all as specified and directed

Supply and fix in replacement for wornout / unservicable "V" belt for power transmission of as per existing size and existing specification / cross section Complete all as specified and directed.

Supply and fix in replacement water pressure gauge 4" dia with and including tube to match and stop cock for range 0 PSI to 150 PSI as per existing complete all as specified and directed.

Supply and fix in replacement pressure relief valve of condenser 3/8" BSP threaded suitable for 300 PSI Complete all as specified and directed.

Supply and fixing of replacement Electronic PCB Kit for micro control panel suitable for Blue star Make of capacity 92 TR Complete all as specified and directed

Supply and fix in replacement erection, testing and commissioning of 3 Way Mixing Valve 3 Way modulating proportional linear type motorised mixing valve BS 4504 PN 10-PN 40 having manual over ride facility with proportional thermostat and wiring with 1.5 sq mm copper conductor multi core armoured cable, 3 way valve size suitable for 80 mm pipe Complete all as specified and directed.

Supply and fix in replacement nitrile rubbe insulation of 9 mm thick, density 40 kg/cum to 60 kg/cum. The insulation material shall be fire rated for class Oa as per BS 476 part 6: 1989 complete as per specified and directed.

supply and fix in replacement 4 pole 9.3 KW/4 pole/3 phase ( IE2) TEFC, squirrel cage induction motor , suitable for 415v +- 10% 50 Hz AC Supply complete all as specified and directed .

Supply and fix in replacement 3 pole power contactor , coil voltage 230 volts/415 Volts for following capacity motor. Complete all as specified and directed (a) 12 Amps to 25Amps

(b) 50 Amps to 90 Amps

Supply and fixing in replacement 4 pole MCCB 200 Amps 415 V 25 KA with adjustable thermal and magnetic setting including spreaded links & extended rotary handle complete all as specified and directed.

Supply and fixing in replacement control MCB SP 6 AMP 10 KA complete all as specified and directed.

Supply and fixing in replacement control MCB TP 20 AMP 10 KA complete all as specified and directed.

Supply and fixing in replacement control MCB TP 32 AMP 10 KA complete all as specified and directed.

Supply and fixing in replacement control MCB TPN 63 AMP 10 KA complete all as specified and directed.

Supply and fixing in replacement VAF meter for central AC panel complete all as specified and directed.

Supply and fixing in replacement push button red with No/Nc element for central AC panel complete all as specified and directed.

Supply and fixing in replacement push button green with No/Nc element for central AC panel complete all as specified and directed.

Supply and fixing in replacement Add-on-block with 2 No & 2 Nc to match the contractor for central AC panel complete all as specified and directed.

Supply and fixing in replacement single phase preventer for central AC panel complete all as specified and directed.

Supply and fixing in replacement overload relay 10 Amp to 16 Amp for central AC panel complete all as specified and directed.

Supply and fixing in replacement overload relay 6 Amp to 10 Amp for central AC panel complete all as specified and directed.

Material and labour in repair for checking and testing of starter panel detecting the fault/defects including replacement of minor burnt wires, lugs, terminal, etc.in repairs power & control wiring with PVC flexible copper cable single core of appropiate size as required for better funtioning complete with PVC cable duct & lugs complete for DOL & star-delta fedder complete all as specified and directed.

M & L for carry out routine maintenece and servicing of Package type air conditioner of capacity 8.5TR & 11TR including removing the dust from body with blower, cleaning the condenser and cooling coil, checking all the electrical and refrigeration piping connections, checking function of relay, capacitors, overload protector, thermostat, fan motor, blade, fan/blower drum, LT Control panel, VFDs, electronic contol box, etc, oiling/greasing of fan motor, checking serviceability, cleaning of the air filter woolen felt & refixing ensuring for air tighting complete, repair and replacement of warn out/unserviceable spares including taking down and refixing, transportation to and from workshop if required and refixing it in its original place after fully servicing including testing & commissioning all as specified and directed by Engineer-in-Charge. Note: 1. Spares parts replaced shall be measured & paid under saperate item

Supply only V-Belt Type 13x813A 32A840EL for Blower fan of Package AC Unit of Capacity 8.5TR/11TR

Supply only relay HP & LP for package type AC plant of capacity 8.5TR

Supply only relay HP & LP for package type AC plant of capacity 11TR

Supply only condensor fan motor , 230V,50Hz 920rpm 2 HP for package type AC, Model: 14B606A1E/2L-FP7 Make: Micro Instrument Co. or equivalent

Supply & fixing in replacement including connection 3 pole AC power contactor, 32 Amps, 415 Volt with auxilary contact 1NO + 1NC, having coil voltage 380 to 400 Volts Make Simens cat ref C4NE22 or equivalent of L &T/Havells.

Supply, fixing and connecting in replacement Intigrated circuit board with all electronic components suitable for 8.5 TR capacity Carrier Pakage type Air conditioner.

Supply, fixing and connecting in replacement Intigrated circuit board with all electronic components suitable for 11 TR capacity Carrier Pakage type Air conditioner.

Supply, fixing and connecting in replacement SPPR Circuit board suitable for 8.5TR/11TR cap Package AC of Make Carrier.

Supply and fixing for replacement 3Ph, 415V, 50Hz compressor of capacity 11TR suitable for package type AC

Supply and fixing for replacement 3Ph, 415V, 50Hz compressor of capacity 4.25TR suitable for package type AC

S&F in replacement of thermostatic expansion valve for package type AC plant of capacity 8.5/11TR

-do- all as per Item No 51 above but for carry out repair/maintenance of 3Phase, 415V, 50Hz Ductable type AC indoor and outdoor unit of capacity 8.5TR complete all as specified and as direted by Engineer In Charge.

Supply and fixing for replacement condensate drain pump of ductable type AC of capacity 8.5TR

Supply and fixing for replacement Condensor fan motor suitable for ductable type AC of capacity 8.5TR

Supply and fixing for replacement fan blade suitable for outdoor unit of capacity 8.5TR ductable AC

Supply and fixing for replacement Blower Motor suitable for Carrier Make Ductable type AC of capacity 8.5 TR

Supply and fixing for replacement Direct driven forward curved type centrifugal Blower fan suitable for Carrier Make Ductable type AC of capacity 8.5 TR

Supply and fixing for replacement Electronic PCB Kit for control panel suitable for Carrier Make Ductable type AC of capacity 8.5 TR

S&F in replacement of thermostatic expansion valve for ductable type AC plant of capacity 8.5TR

do- all as per Item No 51 above but for carry out repair/maintenance of 3Phase, 415V, 50Hz Ceiling Mounted Cassette type AC indoor and outdoor unit of Capacity 4.0TR complete all as specified and as direted by Engineer In Charge.

M & L for replacement of condensate drain pump assembly of cassette type AC of capacity 4.0TR

Supply and fixing for replacement Sensor unit for water pump of carrier make casset type AC indoor unit (as per existing).

Supply and fixing for replacement Condensor fan motor suitable for cassette type AC of capacity 4.0TR

Supply and fixing for replacement Fan blade made of HD PVC suitable for Carrier make assette type AC of capacity 4.0TR outdoor unit incl lock nut.

Supply and fixing for replacement Blower Motor/Indoor fan motor suitable for Carrier Make Cassette type AC of capacity 4.0 TR

Supply and fixing for replacement Electronic PCB Kit for control panel suitable for Carrier Make Cassette type AC of capacity 4.0 TR

Supply and fixing for replacement compressor 3Ph, 415V, 50Hz of capacity 4.0TR for carrier make Cassette type Air conditioner

Supply and fixing for replacement three phase 3Ph, 415V, 50Hz overload protection relay suitable for ductable/casstte AC.

Supply and fixing for replacement Air brake power contactor 3 phase AC 50 Hz 415V, 15Amps (as per existing) suitable for 4.0 TR Cassete type Air Conditioner.Make: Siemens/C&S/L&T/BCH

Supply and fixing for replacement single phase preventor relay suitable for ductable/casstte AC.

S&F in replacement of thermostatic expansion valve for cassettee type AC plant of capacity 4 TR

do- all as per Item No 51 above but for carry out repair/maintenance of 3Phase, 415V, 50Hz Walk in Chiller and Cooler indoor and outdoor unit of Capacity 3.0 TR complete all as specified and as direted by Engineer In Charge.

M & L for replacement of condensate drain pump assembly of capacity 3.0TR

Supply and fixing for replacement Sensor unit for water pump of carrier make indoor unit (as per existing).

Supply and fixing for replacement Condensor fan motor suitable for of capacity 3.0TR

Supply and fixing for replacement Fan blade made of HD PVC suitable for Carrier make of capacity 3.0TR outdoor unit incl lock nut.

Supply and fixing for replacement Blower Motor/Indoor fan motor suitable for Carrier Make of capacity 3.0 TR

Supply and fixing for replacement Electronic PCB Kit for control panel suitable for Carrier Make of capacity 3.0 TR

Supply and fixing for replacement compressor 3Ph, 415V, 50Hz of capacity 3.0TR for carrier make.

Supply and fixing for replacement three phase 3Ph, 415V, 50Hz overload protection relay suitable for 3.0 TR walk in chiller

Supply and fixing for replacement Air brake power contactor 3 phase AC 50 Hz 415V, 15Amps (as per existing) suitable for 3.0 TR walk in chiller.Make: Siemens/C&S/L&T/BCH

Supply and fixing for replacement single phase preventor relay suitable for Walk in chiller.

S&F in replacement of thermostatic expansion valve for walk in chiller type AC plant of capacity 3 TR

M & L for detecting the gas leakage,rectifyiong the defects including repair to condenser coil/evaporator coil by means of welding soldering etc vacumizing,testing complete for the 11 TR pakage type AC .

All As per Item No 46 but for 4.25TR Compressor of 8.5TR Package type AC plant.

All As per Item No 46 but for 8.5TR Compressor of ductable type AC.

All As per Item No 46 but for 4.0TR Compressor of ceiling mounted ductable type AC.

All As per Item No 46 but for 3.0TR Compressor of Walk in chiller and cooler

M&L for cleaning of Package type AC, central type AC and surrounding area by surface excavation upto 10 cm depth incl removing shrubs,grass,miniplants and other unwanted materials and levelling complete in soft/loose soil all as specified and directed.

M&L for earthing with 600x600x6mm galvanised steel earth plate electrode buried vertically in ground (earth pit not less than 2.25 metre deep below normal ground level) with top edge of the plate at a depth of not less than 1.5m below ground level, connected to and including G.I. Strip of size 32x6 mm by means of bolts,nuts and check nuts and washers of galvanised steel to the extent of 7.5 metres as earthing lead and connecting to the eqpt/machinery etc. incl charcoal dust and common salt packed all around the earth plate in alternate layer in the earth pit all as per electrical plate No. 3 of SSR Part I-2009 including chamber made up of PCC 1:2:4 type B1 with M.S. angle iron frame, C.I. Cover, 20mm dia light grade G.I. Pipe from top edge of the earth plate upto M.S. funnel with wire mesh provided inside the concrete earth pit for watering arrangement incl excavation and earth work in any type of soil and testing complete all as specified and directed.

S & F in replacement of Solenoid valve for Walk in chiller AC suitable for 3 TR

S & F in replacement of Solenoid coil of suitable size for Walk in chiller AC suitable for 3 TR

S & F in replacement of strainer for 4 to 11 TR Package type Acs/Ductable/Cassettee AC

S & F in replacement of unserviceable indicating lamps 230 Volt AC with RYB and green indication (LED type ) cable connection complete.

SI ENTERPRISES (BID ID -3306778)