MANNING AND OPERATION REPAIR AND ROUTINE MAINTENANCE OF CENTRAL AC PLANT INSTALLATION AND COLD STORAGE ETC AT COMCEN MOC BV YARD DOOM HALL ETC UNDER GE NW KUNJALI

Amount

Sch A PART-I (Manning and operation) Manning and operation of walk in chiller/ freezer (Cold Storage) running round the clock in three shift excluding Sundays and Holidays (i.e 0600 To 1400 Hrs , 1400 To 2200 Hrs & 2200 To 0600 Hrs in Three Shift) in B.V Yard at Colaba including taking care from any pilferage, theft or damage, cleaning etc complete all as specified and directed by Engr-in- Charge:- 1 No - Ref Mech (Semi-skilled) Per Shift (3 shift x 11 month=33 ) (a) Walk in chiller with air cooled split type chiller refrigeration unit each capacity 10,000 BTU per hr (Working 02 Nos and 01 No stand by total Three Nos) or scroll hermatic compressor based non CFC R22 refrigerent inside room temperature 2º C To 8ºC suitable for product load 10MT. (b) Walk in chiller with air cooled split type chiller refrigeration unit each capacity 15,000 BTU per hr.(Working 02Nos. and 01 No Stand by total Three Nos.) or scroll hermaticaiiy compressor based non CFC R22 refrigerent inside room temperature -4ºC to +4ºC suitable for product load 10MT. (c) Walk in chiller with air cooled split type chiller refrigeration unit each capacity 30,000 BTU per hr.(Working 02Nos. and 01 No Stand by Total Three Nos.) or scroll hermatically compressor based non CFC R404a refrigerent inside room temperature -18ºC to -23ºC suitable for product load 10MT.

Manning and operation of water cooled Central AC plant 2x14TR Make: ACCEL SMC at Doom Band practice Hall INS Kunjali two Compressors run at a time for maintained the specific temperature 25+ 2.5 RH 50+ 5% AC plant consists of the following items fitting/ fixtures/ device components for operation running in two shift excluding Sunday and Holiday (i.e 0600 hrs to 1400 hrs & 1400hrs to 2200 hrs ) in including taking care from any pilferage, theft or damage, cleaning etc complete all as specified and directed by Engr-in- Charge.1 No Ref Mech (Semiskilled) PerShift (2shift x 11 month= 22)

Manning & operation of Central chilled water type AC plant 02 Nos x 15 TR (one running & one standby) and 03 Nos x 35 TR (two running & one standby) run in three shifts per day (each shift 08 hrs) operated by one Refg Mech in each shift including maintaining record periodical minor maint/ repairs (ie daily check, monthly, quarterly and half yearly) with all consumable parts except for major repair and spare parts of central AC plant Make :- Voltas Model No ACC WC03000 MNT at COMCEN REAR AND FRONT AC PLANT INS ANGRE complete with cooling tower AHU & other accessories including maintain cleaness of AC plant for 24 hours run daily in three shifts (06.00 hrs to 14.00 hrs, 14.00 hrs to 22.00 hrs and 22.00 hrs to 06.00 hrs) including Sundays and Holidays consisting of followings complete all as specified and directed by Engr-in- Charge:- 1 No Ref Mech (Semiskilled) (3 shift x 11 month = Total 33 shifts)

(a) Compressor Make :- Voltas Model No ACC WC03000 MNT -02 Nos. (b) Compressor motor 15 HP-02 Nos. (c) Condenser/ chiller water pump set mono block 3HP-04Nos. (d) Air Handling Unit with blower motor -01No. (e) FRP Cooling tower with CT Fan- 01No. (f) Electrical control panel cubical type floor mounted with main switch, MCCB's,Voltmeter, Ammeter, Motor Starters etc. complete-01 Set. (g) Control devices such as expansion valve thermostat solenoid valves HP/ LP/ CP cut outs with panel board installed gauges-01Set (h) Digital type thermometer-01Set (j) Air supply duct with grill diffusers dampers and heater etc. complete-01Set (k) Condensers and Condenser piping, Chilled water piping lines 100/80/50mm with valves, water pressure gauge and water temperature gauge complete-01Set

Manning and Operation of central AC chilled water plant 02 Nos x 60 TR (one running & one standby) Total 120 TR make: Voltas, model No. AC WC06000MNT at MOC INS ANGRE complete including maintaining cleaness of AC plant with cooling tower AHU & other accessories for 24 hours run daily in three shifts, each shift 08 hour (06.00 hrs to 14.00 hrs, 14.00 hrs to 22.00 hrs and 22.00 hrs to 06.00 hrs) including Sundays and Holidays consisting of followings complete all as specified and directed by Engr-in- Charge:- 1 No Ref Mech (Semiskilled) ( 3 shift x 11 month = Total 33 shift)

(a) Compressor model No. ACCWC06000MNT-02Nos. (b) Compressor motor 75 HP-02Nos. (c) Condenser / chiller water pump set mono block 7.5HP-04Nos. (d) Air Handling unit with blower motor -01No. (e) FRP Cooling tower 60TR with CT Fan-01No. (f) Electrical control panel cubical type floor mounted with main switch, MCCB's, Voltmeter, Ammeter, Starters, condenser etc. comple-01Set. (g) Control devices such as thermostatic expansion valve, thermostats, solenoid valves HP/LP/CP cut outs with panel board installed gauges -01Set. (h) Digital type thermometer-01 Set. (j) Air supply duct with grills, diffusers, dampers and heaters etc. complete-01Set. (k) Condensers and Condenser piping, Chilled water piping lines 100/80/50mm with valves, water pressure gauge and water temperature gauge complete-01Set

Manning & operation of following Package type Central AC Plants 3x 5.0 TR capacity Make: Voltas installed at Dockyard Officers Mess run in two shift per day (shift 08 hrs) each operated by one Refg Mech except including periodical (ie daily check, monthly, quarterly and half yearly) central AC plant run at a time two units of eah plant and other two and one are stand by for smooth functioning of entire system of Centres and to maintain the specific temperature 20+2ºC, RH 50+- 5% run for 16 hrs daily except Sundays and Holidays (i.e 0600 hrs to 1400 hrs and 1400 hrs to 2200 hrs in two Shift) one AC plant operator per shift and including taking care cleaning etc any pilferage, theft or damage etc complete all as specified and directed by Engr-in- Charge:- 1 No Ref Mech (Semiskilled) ( 2 shift x 11 month = Total 22 )

Notes for item No 1.00 to 5.00- (i) Contractor shall submit ID proof, residential proof, bank A/C details to department and obtain approval of Engineer-in-Charge before employing a person as operator. (ii) Ref Mechanic shall be available as per the shift timings specified in the tender and he will report to JE E/M in-Charge In case of emergency he will function according to their direction. If he is found absent or move without intimating to in-Charge or JE E/M he will be treated as absent for the said shift and recovery of Rs 1500/- per shift shall be affected. (iii) Payment as per quoted rate shall also be deducted in addition to the penalty as specified above. (iv) Contractor shall submit the labour licence & Copy of GST Regn registered number issued by concerned authority. (v) The payment shall be made to employees on or before 10th of every calender month. Payment to employees shall be done by crossed cheque / RTGS / NEFT / IMPS through Aadhar card linked Bank Account only and it shall not be less than minumum fair wages and statutory requiments such EPF and ESI as per Act in vogue. (vi) The rate quoted by the contractor shall be inclusive of life insurance for the tradesmen employed by him in case of untoward incident such as injuries fracture or casualty while on duty (vii) Surprise check will be carried out by department representative and if any employes is not available at his working place, he will be treated as absent. (viii) Contractor has to submit the list of employees including reserve alongwith police verification, Aadhar card, Aadhar card linked Bank Account No and relevant documents as mentioned in PS to the Engineer-in-Charge alongwith performance security before issue work order.

(ix) Contractor has to submit proof of payment of EPF and ESI subscription made by his alongwith RAR failing which RAR will not be progressed for payment (x) Contractor has to employ the number of labours per day as intimated by the Engineer-in-Charge for which he has to make alternative arrangement. (xi) The rates quoted by the contractor shall be deemed to be included provision of all latest labour laws / regulations including all relevant taxes as applicable. (xii) Contractor shall quote the rates considering their monthly leaves, releiver etc as per labour laws and nothing extra shall be paid on account of the above. In case of absence of staff/tradesman from duty, payment of that day will not be paid. In addition to that a penalty of Rs 1500/- per day per person will be recovered from contractors dues. Also in case of long absence (more than one week) of staff/tradesman, the penalty shall be recovered including Sundays & Holidays if any. The contractor shall have no claim on this account. (xiii) Contractor has to supply two sets of Tools and Plants (as applicable) to the labours employed by him and should be placed with the safe custody of department. Rates quoted shall be deemed shall be included as part of contractors profit.

(xiv) The bidders shall not quote rate less than minimum fair wages including other statutory requirement such EPF and ESI including GST as given at para 19 of Sch A Notes. If the quoted amount is less than the estimated cost, the lowest bidder will have to deposit FDR/BGB as elaborated herein after in favour of Accepting Officer within 07 days of opening of financial bid. (xv) The deposited amount shall be the difference between estimated cost and amount quoted by lowest bidder for respective item. FDR/BGB shall be released only after satisfactory completion of work. If the contractor fails to pay minimum wages to employees and other statutory requirments like EPF and ESI, the department shall have right to withhold the said amount which will be verified and confirmed by GE. The decision of Accepting Officer regarding amount to be withhold shall be final and binding. The withhold amount will be utilised by GE for payment to employees if contractor fails to pay minimum wages and balance amount if any shall only be released. If the lowest bidder fails to deposit the amount as stated above within 07 working days, it shall be treated as willful negligence of the bidder with ulterior motives and such tenderer shall be banned from bidding for a period of six months commencing from the date of opening of Financial Bid . The contractor shall sumbit 03 Nos of BGBs/FDRs of equal amount as mentioned above. The BGBs/FDRs validity shall be 04 months, 08 month & 12 months respectively for the purpose of encashment/ release as the case may be. (xvi) The rates quoted shall be inclusive of suitable reliver wherever sundays & holidays are mentioned for working (xvii) Quoted rates should include Stationary,Uniform,Shoes,log book and all safety equipments/ Harness which shall be included as part of contractors profit.

Repairs/Routine maintenance of invertor type VRF machines installed at INCORD Dept. P2 Bldg(ND) of Bluestar make of following capacity round the clock including maintaining the plants twenty four hours for desired temperature of 21+/-3 degree celcius without interuption including repairs/ replacement of damaged/ unserviceable minor parts, controlling valves, copper tubings, nitrile rubber insulation, and all electrical/ electronics components, control wirings, sensors,Thermistors, thermocol inner packs,indoor/ outdoor fan motor windings, vibration pads, painting of rusted out door stands and connected accessories, drainage lines, pre filters control/ communication wirings,earthings, leak test and all other accessories not mentioned in this schedule. the followings capacity are mentioned (a) Out door unit of capacity 18 hp -02 Nos (b) Split high wall type indoor unit of capacity 1.0 tr -5 Nos, 1.5 tr-12 Nos and 2.0 tr-2 Nos

Repairs/Routine maintenance of Ceiling Mounted Ductable type Central Air conditioning plant of capacity 1x 5.5 TR capacity Make: Blue Star and 1x 8.5 TR installed at Boatpool Ferry Lounge(ND) of Bluestar make of following capacity round the clock including maintaining the plants twenty four hours for desired temperature of 21+/-3 degree celcius without interuption including repairs/ replacement of damaged/ unserviceable minor parts, controlling valves, copper tubings, nitrile rubber insulation, and all electrical/ electronics components, control wirings, sensors,Thermistors, thermocol inner packs, fan motor windings, vibration pads, painting of rusted out door stands and connected accessories, drainage lines, pre filters control/ communication wirings,earthings, leak test and all other accessories not mentioned in this schedule complete testing of the plant for smooth functioning complete all as specified and directed by Engr-in- Charge

Sch A Part- II (Repair & Replacement ) Pumping down and transfer existing refrigerant gas of compressor complete for overhauling of compressor, reciprocating type type open type Model No SMC- 4-65 Make : ACCEL 14 Ton capacity and dismantling complete, assembly & replacing of minor unserviceable parts including matching of crank shaft, boring polishing etc. replacing of gaskets packing reassembly and recharging of pumped down refrigerant & topping up if required maintain the required standing pressure charging of compressor oil complete testing for smooth functioning etc complete all as specified and directed by Engineer-in-Charge at Doom Hall. Note: Major spare parts, compressor oil and refrigerant for topping up will be measured and paid seperately under relevant items here in after as 'supply only'. Labour charges are deemed to be included in the quoted unit rate for this item.

All as per item No 8.00 above but for 2 x 60TR AC Plant at MOC INS ANGRE of compressor model no:5H60 Voltas

All as per item No 8.00 but for 3 x 30TR AC Plant at COMCEN FRONT INS ANGRE of compressor model no:5F20 Voltas

All as per item No 8.00 but for 2 x 15 TR AC Plant at COMCEN REAR INS ANGRE of compressor model No 5H40 Voltas

Supply only the following items for compressor as per existing model complete all as specified and directed by Engr-in- Charge:-

Piston

Piston rings

Oil rings

Connecting rod bearing half section

Main end bearing with washer

Liner assembly

Gudgeon pin bush

Rocker arm frame

Rocker arm

Loading unloading ring

Suction valve retaining plate

Suction reeds

Discharge reeds

Oil filter inner

Suction strainer

Oil regulating valve

Discharge valve retaining plate

Connecting rod

Taking down old unserviceable shaft seal assembly complete and supply and fixing new shaft seal assembly suitable for central AC Plant of model SMC4-65/SMC 6-65/ SMC 4100 ACCEL SABRO at Doom Hall complete all as specified and directed by Engr-in- Charge

Material and labour for expansion valve of AC plant capacity 14TR including taking down unserviceable valve complete all as specified and directed by Engineer-in-Charge at Doom hall.

Pumping down the plant to preserve the existing in refrigerant gas & 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 packing wherever 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 of refrigerant 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.

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 after 2 to 3 hours of cleaning if 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 stored refrigerant up to required pressure of capacity 2x14 TR plant complete all as specified & directed by Engineer-in-Charge.

Removing the unserviceable liquid line valve of size 5/8mm dia from the liquid line after pumping down the compressor & supply and fixing new liquid line valve 15mm dia including connected works as required for smooth functioning of AC plants complete all as specified and directed by Engineer-in-Charge

Supply and charge refrigerant R-22 gas in AC plant system as per requirement complete all as specified and directed by Engineer-in-Charge

Replacement of Compressor Oil with new Compressor oil of Frizol 68 complete all as specified and directed by Engr-in- Charge

Removing old unserviceable discharge valve 5/8mm dia and supply and fix new discharge valve of size 5/8mm dia suitable for R-22 gas discharge line complete all as specified and directed by Engr-in- Charge

Supply and fix in replacement of unserviceable / wornout 'V' belt of compressor of size B-90, AHU belt size of A-82 etc of make fenner Dunlop, Nurlon, complete all as specified and directed by Engineer-in-Charge

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 complete all as specified and directed by Engineer-in-Charge

Replacement of unserviceable 2KW Heater strip for AC plant complete all as specified and directed by Engineer-in-Charge

Taking down old existing MS pipes, supply, lay and welding MS pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc. of sizes 100 mm dia complete all as specified and directed by Engineer-in-Charge

Taking down old existing MS pipes, supply, lay and welding MS pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc. of sizes 80 mm dia complete all as specified and directed by Engineer-in-Charge

Taking down old existing GI pipes, supply, lay and welding GI pipes medium grade with all fittings laid in floors or fixed to walls and ceilings etc. sizes 100 mm dia complete all as specified and directed by Engineer-in-Charge

Taking down old existing GI pipes, supply, lay and welding GI pipes medium grade with all fittings laid in floors or fixed to walls and ceilings etc. sizes of 80 mm dia complete all as specified and directed by Engineer-in-Charge

Taking down old existing GI pipes, supply, lay and welding GI pipes medium grade with all fittings laid in floors or fixed to walls and ceilings etc. sizes of 50 mm dia complete all as specified and directed by Engineer-in-Charge

Supply and fixing in replacement power contactors MNX type, three phase, 415V complete all as specified and directed by Engineer-in-Charge

Supply and fixing in replacement power contactors MNX type, three phase, 415V complete all as specified and directed by Engineer-in-Charge

Supply and fixing in replacement power contactors, three phase, 415V complete all as specified and directed by Engineer-in-Charge

Supply and fixing in replacement Auxliary contactors 1NO+1NC three phase, 415V complete all as specified and directed by Engineer-in-Charge

Taking down old unserviceable AHU Blower and S & F new AHU Blower complete all as specified and directed by Engineer-in-Charge

Taking down old unserviceable AHU Blower Drum and S & F new AHU Blower Drum complete all as specified and directed by Engineer-in-Charge

Removing the unserviceable solenoid valve 5/8" flare from the liquid line and supply and fix new solenoid valve 5/8" suitable for AC plant of various capacities complete with all as specified and as directed by Engineer-in-Charge

Material and labour for scraping cleaning & preparation of external surface & painting complete installation of 14 x 2 TR (28TR capacity) including compressor, motor, piping, cooling tower, condensor, AHU & panel board etc with two coats of synthetic enamel paint over a coat of primer as per direction on colour code as given including writing SM & MES numbers complete all as per specified & as directed by Engineer-in-Charge at Doom Hall AC Plant

Material & Labour for HP/LP cut out of AC Plant MP-15 Including taking down old one. complete all as specified and directed by Engineer-in-Charge

Material and labour for oil pressure cut out controls for compressor including taking down old one complete all as specified and directed by Engineer-in-Charge

Removing of old unserviceable heating coil as per suitable dia and liquid length with super lone insulation over the pipe for drainage of cold room complete all as specified and directed by Engineer-in-Charge

Material and labour for digital thermometer for temperature suitable for cold room after removing old unserviceable thermometer complete all as specified and directed by Engineer-in-Charge

Material and labour for LP/HP Cut out of cold room after removing to unserviceable LP/HP cut out complete all as specified and directed by Engineer-in-Charge

Replacement of running capacitor 36 MFD/45 MFD after removing old unserviceable running capacitors complete all as specified and directed by Engineer-in-Charge

Replacement of old unserviceable thermostat with new thermostat suitable(-)18 deg C to (-) 23 deg C cold storage plant complete all as specified and directed by Engineer-in-Charge

Removing old unserviceable pilot solenoid valve assembly and providing new pilot solenoid valve assembly for cold room complete all as specified and directed by Engineer-in-Charge

Material and labour for replacement of old unserviceable temprature indicator complete all as specified and directed by Engineer-in-Charge

Replacement of old unserviceable liquid line filter with new liquid line filter complete all as specified and directed by Engineer-in-Charge

Material and labour for replacement of old unserviceable Filter drier complete all as specified and directed by Engineer-in-Charge

Material and labour for expansion valve suitable for -18 deg C to -23 deg C after removing unserviceable expansion valve in cold room complete all as specified and directed by Engineer-in-Charge

Supply and fixing single phase preventor complete all as specified and directed by Engineer-in-Charge

Replacement of starting capacitor 120MFD after removing old unserviceable capacitor complete all as specified and directed by Engineer-in-Charge

Supply and fixing in repairs Gate Valve of 40 mm Bore complete all as specified and directed by Engineer-in-Charge

Supply and fixing in repairs Pot Strainer of 80 mm Bore suitable for Cooling tower pipe complete all as specified and directed by Engineer-in-Charge

Supply and fixing flexible cord type Drain line Silicon Heater with insulation 60watt for cold room complete all as specified and directed by Engineer-in-Charge

Pumping down plant to pressure the existing refrigerant gas and leak testing of plant by charging of Nitrogen gas in to entire plant and monitoring for 24hrs to find the leakages rectification of leak by brazing & replacement of gasket packing including vacumizing of the plant by vaccum pump and keep up 24hrs. for testing including rectification of leakage if any finally recharging of gas to the plant to maintain the standard pressure complete test complete all as specified and directed by Engineer-in-Charge

Cold room refrigerant unit 5TR Capacity

Cold room refrigerant unit 3TR Capacity

Cool room refrigerant unit 2TR Capacity

Removing old unserviceable compressor from the unit after disconnecting electrical wiring and piping connection with nuts and bolts complete supply, install and testing new sealed compressor of following capacity and connecting pipe line including piping, brazing and electirc connection for cold storage at B.V yard,colaba complete all as specified and directed by Engineer-in-Charge

Refrigerant unit of Compressor 5TR Capacity

Refrigerant unit of Compressor 3TR Capacity

Refrigerant unit of Compressor 2TR Capacity

Removing the worn out control wiring complete, rewiring with suitable copper conductor cable replacing the lugs starter to compressor motor, fan motor timer HP/LP cut , thermostat complete interlock wiring, checking the complete function of timer, heaters, relays, HP/LP cut outs, thermostat cut out and inter lock wiring system, testing on load and all wiring shall be mounted on cable tray of size 200mmx50mm. all as specified and directed for cold storage of following capacity complete all as specified and directed by Engineer-in-Charge:-

Refrigerant unit of 5TR Capacity

Refrigerant unit of 3TR Capacity

Refrigerant unit of 2TR Capacity

Material and labour for Gas charging with R-404a gas with connecting accessories complete all as specified and directed by Engineer-in-Charge

Removing old unserviceable condensor coil fan motor with blade assembly and providing new condensor coil fan motor with blade complete suitable for cold room outdoor unit of capacity 2tr/3tr/5tr.

Removing old unserviceable cooling coil fan motor with blade assembly and providing new cooling coil fan motor with blade complete suitable for cold room indoor unit of capacity 2tr/3tr/5tr.

Taking out old unserviceable condensor and supply & fix new condensor made out of copper pipe and aluminium fins suitable for cold/ cool room including gas charging, leakage checking and testing all as specified

Supply and erecting factory fabricated rectangular/square duct made out of 22/24 gauge GI sheet in L shaped hollow profile including all accessories such as corner, carriage bolt hangers, gasket and seal the longitudinal joints with and including approved sealant complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable insulation from any surface and supply and fix nitrile rubber insulation of one layer of 19mm thickness sticking on surface by using approved adhesive and sealing the joints by weather proof tape all as directed by Engineer-in-Charge.

Material and labour 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 filter and check before and after the cleaning complete all as specified and directed

Taking down GI/Aluminium or any other type of false ceiling and refixing the same after completion of work complete all as specified and directed

Supply and fixing 'C' Channel, Angle iron steel bracing, supports, clamps and back plate fabricated from structural steel section including nuts, bolts, washers, welding, bending, drilling holes for bolts in any shape any size inclusive of one primer coat and two coats of synthetic enamel paint complete all as specified and directed.

Material and labour for cleaning of cooling coil section of AHU for descaling and providing 02 Nos.15mm Tee outlet for local circulation of MAIC solution in the cooling coil (separate container and pump set of appropriate capacity to be used for circulation) pH value of solution to be kept at 4 & checked at an interval of 01 hr. 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 attains '7' refix the coil section in position minor repairs to be carried out in AHU Coil bins to be cleaned by scalgum solution by spraying the solution with washing pump up to required level, AHU and complete all as specified and directed for the followings :-

(a) AHU of 2 x 14 TR Capacity AC Plant at DOOM HALL INS KUNJALI

(b) AHU of 2 x 60TR Capacity AC Plant at MOC INS ANGRE

(c) AHU of 3 x 30TR Capacity AC Plant at COMCEN FRONT INS ANGRE

(d) AHU of 2 x 15 TR Capacity AC Plant at COMCEN REAR INS ANGRE

Dismantling AHU of 2 x 60TR TR capacity AC plant carefully by removing side and top panel removing unserviceable blower shaft bearings,removing motor & blower assembly, replacement of new AHU blower shaft bearings reassembling blower assembly and refixing electric motor & top side panel in original position with new nut bolts washers & shafts keys & checking the shafts balancing & testing for smooth running all as specified and directed at MOC INS ANGRE.

All as per item No 67.00 but for 3 x 30TR AC Plant at COMCEN INS ANGRE

All as per item No 67.00 but for 2 x 15 TR AC Plant at COMCEN REAR INS ANGRE .

Material and labour for dismantling cooling tower by removing CT Fans, sprinklers, PVC filler and clean cooling tower body by removing scale , dust, dirt and refix PVC filler by cleaning with diluted HCL solution reassembling, connecting , cleaning external surface and applying two coats of approved synthetic enamel paint including writing SM number/ marking and testing etc. complete all as specified and directed for the following capacity cooling towers for the following :-

Cooling tower of 3 x 30 TR Plant Capacity at COMCEN INS ANGRE

Cooling tower of 2 x 15 TR Plant Capacity at COMCEN REAR INS ANGRE .

Cooling tower of 2 x 60 TR Plant Capacity at MOC INS ANGRE .

Cooling tower of 2 x 14 TR Plant Capacity at DOOM HALL INS KUNJALI .

Supply and fixing in replacement of unserviceable / worn-out 'V' Belt of AHU's

Supply and fixing in replacement of unserviceable / worn-out rubber coupling suitable for compressor shaft and motor shaft complete all as specified

Taking out old unserviceable 2 x 15 TR Delta make cooling tower fills sheets from the site and supply and fix new fibre fills sheet of same size for cooling tower as per the existing at site and all as specified and directed by Engineer-in-Charge at COMCEN REAR INS ANGRE.

Taking out old unserviceable 3x30 TR Delta make cooling tower fills sheets from the site and supply and fix new fibre fills sheet of same size for cooling tower as per the existing at site and all as specified and directed by Engineer-in-Charge at COMCEN INS ANGRE.

Material and labour for disconnecting condenser for descaling & plugging them & providing of 15 mm 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 after 2 to 3 hours of cleaning if ph value remains less than 7 flush with fresh water mixed with sodium carbonate tubes and cleaning with nylon brush after closing the end covers, circulating diluted acid solution as specified above & pH value to be maintained as above & flushing the same with fresh water including recharging of stored refrigerant up to required pressure complete all as specified & directed by Engineer-in-Charge of for the following :-

Condenser of 2 x 60TR Capacity AC Plant at MOC INS ANGRE

Condenser of 3 x 30TR Capacity AC Plant at COMCEN INS ANGRE

Condenser of 2 x 15TR Capacity AC Plant at COMCEN REAR INS ANGRE

Taking out old unserviceable cooling tower nozzles and supply and fix new cooling tower nozzles suitable for 3x30 TR Mihir make cooling tower as per existing at at COMCEN INS ANGRE.

Pumping down the existing refrigerant from the condensor and carrying out the leak test of plant with the pressure of Nitrogen gas and monoitoring for 24hrs asses leakages by brazing & replacement of necessary gasket wherever required including copper tubes of suitable size vacumizing of the plant by vaccum pump finally reharging of existing refrigerant gas to the plant and topping up of refrigerant if required to maintain the standard pressure etc complete including testing of the plant for smooth functioning complete all as specified & directed. (Note: Refrigerant required for topping up will be measured and paid separately under relevant items)

Rewinding of unserviceable electric motor 3 phase 50 Hz 415volt of following capacity pump set complete comprises as under :- (a) Disconnecting & removing the electric motor from installed position including, loading, unloading and transporting to approved workshop. (b) Taking out the existing burnt winding from the motor including rewinding complete with super enameled copper winding wire of existing gauge including all insulating material such as insulation paper, sleeves, tape, varnish etc. complete for class 'F' insulation. (c) Transporting the motor back to the location, reinstalling in original position including alignment, electrical & water connection, commissioning and testing for 8hours continuously to check the RPM etc. to the satisfactory performance etc. complete. NOTE: Any damage caused during handling will be made good by contractor without any extra cost to department

7.5 HP Chiller / Condenser Water Pump Motor .

15 HP Chiller/Condenser Water Pump Motor.

5.0 HP Chiller/Condenser Water Pump Motor.

3.0 HP Chiller/Condenser Water Pump Motor.

10 HP Condenser/Chiller Water Pump/ AHU Motor.

15 HP Compressor Motor .

Over hauling of Monoblock pump set after removing from the base plate, disconnecting from pipe line, dismantling the pump set, replacing unserviceable gland packing, gun metal bush bearing water seal applying grease etc. complete and reassembling the pump set connecting with pipe line reconnection of electric supply, including buts bolts, gaskets etc. complete testing of pumps for smooth functioning with following capacity of pumps and motors:-

7.5 HP Chiller / Condenser Water Pump

15 HP Chiller/Condenser Water Pump

5.0 HP Chiller/Condenser Water Pump

3.0 HP Chiller/Condenser Water Pump

10 HP Condenser/Chiller Water Pump/AHU Motor

Over hauling sevicing of electric motor after removing from the base foundation including disconnecting of electric connection and replacment of unserviceable ball bearing complete and reassembling, realignment and reconnection of electric supply complete and testing on load for smooth functioning of following capacity motors:-

15 HP Motor .

60 HP Motor .

40 HP Motor.

50 HP Motor.

10 HP Motor

Material and labour for Expansion valve of 30/15TR chiller unit including taking down old unserviceable valve complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable shaft seal assembly complete and Supply and fix new shaft seal assembly suitable for 60/50 TR Capacity chiller unit complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable shaft seal assembly complete and Supply and fix new shaft seal assembly suitable for 30/40 TR Capacity chiller unit complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable CI butter fly valve and supply and fix new CI Butter fly (ISI Marked), class 125, valve slim seal design with nitrile rubber lined seat with clutch lever (p10) as per IS 13095:1991 of the following size complete all as specified and directed by Engineer-in-Charge..

Taking down old unserviceable Non Return valve and supply and fixing new CI Non Return valve (ISI Marked) of nominal pressure (PN 1.6) as per IS 5312 (Part 1): 2004, of the following size complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable Strainer of any make and size and supply and fixing new Strainer of the following size complete all as specified and directed by Engineer-in-Charge.

Supply and fixing Condensor safety valve suitable for chiller unit complete all as specified and directed by Engineer-in-Charge.

Material and labour for HP cut out including taking down old one complete all as specified and directed by Engineer-in-Charge.

Material and Labour for LP cut out including taking down old one complete all as specified and directed by Engineer-in-Charge.

Material and labour for oil pressure cut out controls for compressor including taking down old one complete all as specified and directed by Engineer-in-Charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-2 complete all as specified and directed by Engineer-in-Charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-3 complete all as specified and directed by Engineer-in-Charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-4 complete all as specified and directed by Engineer-in-Charge.

Removing old unserviceable timer from compressor panel and supply & fix Timer 800 SD of Simens make for Compressor motor complete all as specified and directed by Engineer-in-Charge.

Removing old unserviceable timer and supply & fix GT Timer of L&T make for Condenser motor complete all as specified and directed by Engineer-in-Charge.

Replacement of bimetal over load relay of range 14-23 Amps direcectly operated suitable for 10 HP motor complete all as specified and directed by Engineer-in-Charge.

Replacement of bimetal over load relay of range 9-15 Amps direcectly operated suitable for 5 HP motor complete all as specified and directed by Engineer-in-Charge.

Removing the unserviceable solenoid valve assembly 5/8" flare size and Supply and fix new solenoid valve assembly 5/8" suitable for AC plant of various capacities complete all as specified and directed by Engineer-in-Charge.

Removing the unserviceable solenoid coil and Supply and fix new solenoid coil suitable for AC plant of various capacities complete all as specified and directed by Engineer-in-Charge.

Removing the unserviceable pressure Sensor HP / LP / OP from and supplying and fixing new pressure Sensor of suitable capacity complete all as specified and directed by Engineer-in-Charge.

Removing the unserviceable pressure gauges HP / LP / OP from existing position and supplying and fixing new pressure gauge of capacity 0 to 30 Kg / square centimeter complete with necessary accessories complete all as specified and directed by Engineer-in-Charge.

Material and labour for scraping cleaning and preparation of external surface and painting complete installation at 2 X 60 TR (120 TR capacity) including compressor motor piping cooling tower condenser AHU and panel Board etc with two coats of synthetic enamel paint over a coat of red oxide zinc chromate primer as per ENCs colour code as given including writing to SM & MES numbers complete all as per specified & as directed by Engineer-in-Charge. Location : MOC INS Angre

All as per item No 102.00 above but for 3 x 30TR (90 TR Capacity) AC Plant at COMCEN FRONT INS ANGRE complete all as specified and directed by Engineer-in-Charge.

All as per item No 102.00 above but for 2 x 15 TR (30 TR Capacity) AC Plant at COMCEN RAER INS ANGRE complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable aluminium rectangular duct grill of any size and make and supply and fix new fresh air /return air of aluminium rectangular grills complete with wooden frame work made out of II nd class hard wood, volume control damper including gasket and connected accessories complete all as directed by Engineer-in-Charge.

Material and labour for pipe insulation, cleaning the pipe surface with steel wire brush, apply one coat of zinc chromate paint and allowed to dry, apply two coats of cold setting adhesive compound on around surface of pipe, stick expanded Nitrile 50 mm thick or nitrile sheets tightly pressed, wrapped with one layer of aluminium cladding with 26 guage AL sheet suitable for covering the surface of pipe line insulation for protection against the demage of PUF insulation slab complete for 250 mm pipe complete all as specified and directed by Engineer-in-Charge.

Ditto- all as per item No 106.00 above but 150 mm dia.

Ditto- all as per item No 106.00 above but 100 mm dia.

Ditto- all as per item No 106.00 above but 80 mm dia.

Ditto- all as per item No 106.00 above but 65 mm dia.

Ditto- all as per item No 106.00 above but 50 mm dia.

Ditto- all as per item No 106.00 above but 40 mm dia.

Suuply and fixing in repairs volume control damper made out of galvanized iron or anodized aluminium with overlapping leafs to avoid any leakage from the damper as per existing at sitecomplete all as per specified & as directed by Engineer-in-Charge

Suuply and fixing in repairs leather type canvas in AHU duct of any size as per existing at sitecomplete all as per specified & as directed by Engineer-in-Charge

BRITE INDUSTRIES

Shree Ayyappa Engineering

shubham construction

somnath engineering corporation