MAINTENANCE OF COMMAND TARANG SWIMMING POOL AND M AND O AND REPAIR MAINTENANCE OF VARIOUS DG SET AT NAVY NAGAR COMPREHENSIVE MAINTENANCE CHLORONOME PLANT INCLUDING CONNECTED ACCESORIES AND DISINFECTANT CHEMICAL FOR WATER SUPPLY INSTALLATION AND MAN

Amount

Supply and fix in repair only in replacement against item No.1.01 to 1.18 here in after the following items:-

Fuel filter for DG Sets of Kirloskar for capacity 160 KVA

Fuel filter for DG Sets of Greaves for capacity 125 KVA

Fuel filter for DG Sets of Kirloskar for capacity 250 KVA

Fuel filter for DG Sets of Greaves for capacity 320 KVA

Fuel filter for DG Sets of Greaves for capacity 400 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 160 KVA

Lubrication oil filter element with 'O' ring for DG Set of Greaves for capacity 125 KVA

Lubrication oil filter element with 'O' ring for DG Set of Kirloskar for capacity 250 KVA

Lubrication oil filter for DG Set of Greaves for capacity 320 KVA

Lubrication oil filter for DG Set of Greaves for capacity 400 KVA

Air filter element inner and outer with 'O' ring for DG of Kirloskar for capacity 160 KVA

Air filter element inner and outer with 'O' ring for DG Set of Greaves for capacity125 KVA

Air filter element inner and outer with 'O' ring for DG Set of Kirloskar for capacity 250 KVA

Air filter element inner and outer with 'O' ring for DG Set of Greaves for capacity 320 KVA

Air filter element inner and outer with 'O' ring for DG Set of Greaves for capacity 400 KVA

Lub oil SAE 15 W - 40 (Make : Castrol/Power Supreme) for Top up or filling up the oil.

Distilled water to be filled in batteries

Coolant

Fan Belt for DG Sets of Kirloskar for capacity160 KVA

Fan Belt for DG Sets of Greaves for capacity125 KVA

Fan Belt for DG Sets of Kirloskar for capacity 250 KVA

Fan Belt for DG Sets of Greaves for capacity 320 KVA

Fan Belt for DG Sets of Greaves for capacity 400 KVA

Voltmeter 0 to 500 Volts AC Make: AE/MECO

Tachometer/Speedo Meter

Material & labour for Preperation of old painted exposed surface of DG Set, removing all dirt, dust, grease oil etc and Painting exposed surfaces of DG set including accessories fixed with the DG Set, with two coat of synthetic enamel paint of approved colour all as directed for DG Set of Kirloskar for capacity160 KVA complete all as specified and directed.

All as per item No. 2 above but 125 KVA capacity complete all as specified and directed.

All as per item No. 2above but 250 KVA capacity complete all as specified and directed.

Manning & Operation of Command Swimming Pool, consisting of following equipments & Electrical Panel boards etc. by employing one FGM (Skilled) one Mate (Semi Skilled) Labours Per Shift of 8 hrs for 2 Shifts, 16 Hrs per day, (0600 Hrs to 1400 Hrs First Shift and 1400 to 2200 Hrs Second Shift) including Sundays & Holidays, Comprising the following works :- (a) Operating Pump sets of any capacity as directed (b) Checking water level in the Swimming Pool. (c) Operating Chlorination/Ionization Plants as directed (d) Maintaining Log Book for Swimming Pool (e) Maintaining record of timing of Swimming Pool operation (f) Operating Sluice/Gate Valves located within 1 KM from the Swimming Pool for Supply of water to pool as per the time schedule/requirement. (g) Routine maintenance & cleaning/back washing of filteration plant. (h) Carrying out necessary measure to achieve quality of swimming pool water as per para 3.1.1 of IS-3228 (1993) such as separating dirt/ dust /suspended particles from water and chlorination of water etc. (Note : Disinfectant chemicals and other consumable chemicals required for Operation and maintenace of Swimming Pool Shall be supplied by department) A. EQUIPMENTS : (a) (i) Starter Panel - 01 No (b) Vertical type pressure filter capacity 30000 gallons/ hour - 02 Nos (c) Pump set capacity 15 HP - 02 Nos (d) Suction sweeper complete with Accessories and suction hose along with 2 HP pump set - 01 No. (e) Connecting Valves of various type/sizes.

Manning & Operation of Tarang Swimming Pool, consisting of following equipments & Electrical Panel boards etc. by employing one FGM (Skilled) one Mate (Semi Skilled) Labours Per Shift of 8 hrs for 2 Shifts, 16 Hrs per day, (0600 Hrs to 1400 Hrs First Shift and 1400 to 2200 Hrs Second Shift) including Sundays & Holidays, Comprising the following works :- (a) Operating Pump sets of any capacity as directed (b) Checking water level in the Swimming Pool. (c) Operating Chlorination/Ionization Plants as directed (d) Maintaining Log Book for Swimming Pool (e) Maintaining record of timing of Swimming Pool operation (f) Operating Sluice/Gate Valves located within 1 KM from the Swimming Pool for Supply of water to pool as per the time schedule/requirement. (g) Routine maintenance & cleaning/back washing of filteration plant. (h) Carrying out necessary measure to achieve quality of swimming pool water as per para 3.1.1 of IS-3228 (1993) such as separating dirt/ dust /suspended particles from water and chlorination of water etc.(Note : Disinfectant chemicals and other consumable chemicals required for Operation and maintenace of Swimming Pool Shall be supplied by department) A. EQUIPMENTS : (a) (i) Starter Panel - 01 No (b) Vertical type pressure filter capacity 10000 gallons/ hour - 02 Nos (c) Pump set capacity 10 HP - 02 Nos (d) Suction sweeper complete with Accessories and suction hose along with 3 HP pump set - 01 No. (e) Connecting Valves of various type/sizes.

Labour only for Cleaning of entire Floor/ Wall Surface area of Command Swimming Pool by brush or Suction Sweeper to avoid development of algae etc, scraping foreign materials and cleaning the entire surfaces of bottom and side walls and remove complete dirt etc, anti-bacterial treatment using chemical disinfectant complete all as specified and directed . (Note : The Cleaing work is in addtion to the daily cleaning of pool work included in the Sch Item No. 1 to 3 above. Cleaning shall be carried out with not less than two labours once in a week or as directed)

All as per item No 7 above but for Tarang Swimming Pool complete all as specified and directed.

Supply only the following Chemicals against Item No. 1 to 3 above :-

Alum Potash with ISI marked.

Soda Ash with ISI marked.

Copper Sulphate with ISI marked.

Bleaching Powder with ISI marked.

potassium permanganate

Repair/Maintenance to Chlorine dozing system assembly with chlorine injector dozing pump, cleaning, servicing, carrying out minor repairs and testing complete all as specified and directed. (Note : Parts and spares requied to be replaced shall be measured and paid separately.

Supply only in replacement against item No.10 here in before the following items:-

Gear motor 230 volt 50 Hz suitable for decrin dosing pump Part No PM 682 CE

Rotor assembly with bearing brackets and tolerance rings. Part No PMBR PL2

Coil 250 volt, 50 Hz Part No. MP 6 J222

Single head feed rate control with shaft. Part No FC 5040D

Pump head (Ferrules 1/4" including duckbill Part No UCPH 7 FD

Roller assembly Part No. MC3ASYD

Pump tube. Part No MCCP 207

Injection check valve 3/8" Part No MCINJ 38

Weighted suction line strainer 3/8" Part No. ST 138

White suction/discharge tube Part No. MAL T002

Supply & fixing in repair dosing Pump high pressure single head gear motored adjustable dosing pump with accessories include lead tubing, connecting nuts, injection check valve, clay weight, ferules etc complete all as specified and directed.

Supply and Fixing in repair dosing system consisting 40 ltr-100 ltr PE/FRP Tank with PE/FRP Lid & level gauge along with agitator with shaft & blade in plastic tank complete all as specified and directed.

Supply only Calcium Hypochlorite in granular form in 45 or 25 Kg drum, having minimum 70% of available chlorine (Ca(OCI)) with anti-corrosive and anti-scaling properties suitable for human consumption. Make: PuriChlor/Declibac/Aquafit.

Material and labour for chemical Earthing Set-2 No. of Copper Bonded Rod of diameter 17.2 mm and length of 10 feet UL approved with 25 KA current discharge test from CPRI . The material shall be low carbon high tensile copper bonded rods with 99.9 % of copper on the surface. The UL Approval certificate shall be provided Eathing Pit shall be filled with highly conductive and eco friendly ground enhancing compound as per IEC 62561- 7 shall be not less than 30Kg per pit & Poly pit cover,all as directed by Engg-in-Cahrge

Manning and opertation of central Air Conditioning plant installed in Command Auditorium Old Navy Nagar of capacity 02 Nos x 89 TR, Make : Bluestar, Model No LCW1-090V030404 of chiled water type working at a time with all equipments two nos water cooler chiller unit and to maintainthe specified tempertaure 20+2*C and RH 50+5% AC plants consist of the following items /fittings/ fixtures/ devices/ composnets for smooth functioning of entire system for operation 08 hrs daily including Sunday in one shift (i.e 1400 to 2200 hrs) and taking care, cleaning etc inculding running if DG set 100KVA capacity & regular check of distilled water of battery also collecting of oil from MT and filling up DG set complete all as specified and directed. The following compents are:- a) Screw compressor hermatically sealed units using R-134A refigerant gas Make-Bluestar-02 Nos b) Condenser/Chiller water pumping set mono block centrifugal type 10 HP 3 phase 415 volts Make : Kirloskar Model No KDI1030 - 06 Nos c) AHU capacity 36000CFM Make : Zeco, Model ZDS - 350 with cooling coil DX type and blower motor - 02 Nos d) FRP induced draft rectangular tpye counter flow cooling tower of capcity 110 TR Make : Mihir model SM 6/9E/5-02 Nos e) Control devices such as expansive valves, thermostat sloenoid valves HP/LP/CP cut with panel board installed gauge thermostats - 02 set f) Condenser piping MS with valves pressure gauge temperture gague etc- 01 set g) Air supply duct with grills diffusers dampers and heater complete - 01 set h) Electrical control panel cubical type floor mounted with main switch MCCB, MCB,s voltmeter Ampere meter starter contractor etc complete - 01 set (j) Electrical control panel cubical type floor mounted with main switches, MCCB's, MCB's, Voltmeter's, starters, contractors etc complete-01 set.

Manning & Operation only for central AC plant complete as mentioned in item above but for additional shift per day as and when required all as directed.

Note :- (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) Plant operator 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 licenece VAT & Copy of GST Regn registered number issued by concerned authority. (v) Payment to employees shall be done by crossed cheque through Aadhaar linked bank account only and it shall not be less than minimum fair wages as per act in vogue. In case payments are made in current coin or currency notes, contractor shall submit certificate alongwith undertaking of employee that asking for payment other than by cheque or by crediting in the bank account of the empolyee. The contractor shall submit prof to Engineer-in-Charge before claiming any payment. (vi) 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. (vii) 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

Note :- For item No 5,6,16 & 17 (a) 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. (b) 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. (c) 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 as per Act in vogue (d) Contractor has to submit proof of payment of EPF subscription made by his alongwith RAR failing which RAR will not be progressed for payment (e) 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. (f) 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.

(g) 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. (h) Contractor has to supply three 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 to be included the above provision. (j) In case any variation in manpower as indicated in Column No 4 of BOQ due to any reasons / or any manpower held in Department or any policy change contractor should have no claim on that account.

(xiii) The bidders are advised not to quote rate less than minimum fair wages as circulated by competent authority. If the quoted amount is less than the estimated cost of item No. 5,6,16 & 17 i.e Rs. 34,42,389.60, 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 (Cover No 2) . (xiv). 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, the department shall have right to withhold the said amount which will be verified 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 days, the contractor shall be banned for 06 months & his bid shall be rejected. 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. (xv) The rates quoted shall be inclusive of suitable reliver wherever sundays & holidays are mentioned for working (m) Quoted rates should include Stationary,Uniform,Shoes,log book and all safety equipments/ Harness.

Material & labour for Detecting the gas leakage, rectifying the defects by vacumizing and charging fresh mafron gas and commissioning and testing the Split type AC 1.5/2.0 Ton Capacity. complete all as specified and directed.

All as per item No 18 above but of Water cooler 40/60/80 Ltrs capacity.

All as per item No 18 above but of Water cooler 120/150/170 Ltrs capacity.

Material & labour for Taking out Split type Air conditioner 1.0/1.5/2.0 Ton capacity complete outdoor&indoor of any make from its original location, removing the dust from body with blower, cleaning the condenser and cooling coil by using water and caustic soda, painting the base tray with one coat of black enamel paint checking all the connections including functioning of metal clad socket/ DP switch function of relay capacitors overload protector thermostat fan motor blade fan blower drum etc. oiling/ greasing of fan motor checking serviceability and refixing it in its original place including testing commissioning for 1.0/1.5/2.0 Ton of AC of any make all as specified & directed by Engineer-in-charge.

Material & labour for preparation of old painted surfaces of Water cooler any capacity by complete scraping old painting an applying two coat of synthetic enamel painting on outer surface (spray painting) as per existing colour and black colour on bottom portion such as compressor etc. over a coat of red oxide primer complete all as specified and directed.

Taking out old unserviceable compressor and Supply, install, test & commissioning new compressor sealed reciprocating type suitable for Split type AC 1.5 Ton capacity duly charged with fresh Refrigerant gas etc. complete all as specified & directed by Engineer-in-charge. Make : Voltas / Shriram / Tech cum Shah / Kirloskar/Carrier etc. as per existing make at site.

All as per item No. 23 above but of Water coolers 40 / 60 /80 Liters capacity

All as per item No. 23 above but of Water coolers 120/150/170 Liters capacity

Taking down carefully split type AC of capacity 1.5 / 2.0 ton & shifting on new location complete with pre fabricated brackets/ frame work as required complete & making the good existing surface with out any damage outdoor & indoor unit complete.

Removing the existing unserviceable burnt fan motor from Split type AC of capacity 1.0 / 1.5 / 2.0 Ton and replacing the same with brand new fan motor of same capacity including reassembling and testing complete.Make:AUE or Equivalent

Supply & fix fan motor suitable for water cooler of any capacity including removing old fan motor and testing complete.Make:AUE or Equivalent

Supply,fixing and testing fan blade suitable for Split type Air conditioner of 1.0 / 1.5 / 2.0 Ton capacity including removing old fan blade.

Supply, fixing and testing fan blade suitable for water cooler of any capacity including removing old fan blade.

Replacement of starting capacitor 60 - 80 mfd.Make:(ANAND/SARADA/ KELTRON)

Replacement of starting capacitor 80-100 mfd. Make:(ANAND/SARADA/ KELTRON)

Replacement of starting capacitor 100 -120 mfd.Make: ANAND/SARADA/ KELTRON)

Replacement of running capacitor 25 MFD (Make : Asian / Apcos)

Replacement of running capacitor 36 MFD (Make : Asian / Apcos)

Replacement of running capacitor 45 MFD (Make : Asian / Apcos)

Taking out old unserviceable thermostat switch and Supply & fix of thermostat switch for Split type AC of capacity 1.0 Ton / 1.5 Ton / 2.0 Ton capacity (Make :- Indofoss / Ranutral/Arnapurna)

Taking out old unserviceable thermostat switch and Supply & fix of thermostat switch for Water Cooler of any capacity (Make :- Indofoss / Ranutral/Arnapurna)

Taking out old unserviceable and Supply & Fix new over load relay suitable for Split type AC of 1.0 Ton / 1.5 Ton / 2 Ton capacity all as directed.(Make : Microteck / Usha / Rametrol)

Taking out old unserviceable and Supply & Fix new over load relay suitable for water cooler of any capacity all as directed(Make : Microteck / Usha / Rametrol)

Supply & fix of Float valve suitabie for Water cooler of any capacity

Supply fixing and clamping jointing copper tubing for suction line and for liquid discharge line duly insulated with suitable insulation material including making hole in wall for passing through and making good to the disturbed surface after taking out old unserviceable copper tube complete.

Supply and lay cable PVC insulated 3 core 4 Sq mm with copper conductor cable suitable for indoor unit to outdoor unit after taking out old unserviceable complete all as directed by Engineer-in-Charge

Supply and lay PVC pipe 20 mm dia heavy duty for drain out condensing water of split AC including cutting of floor / opening of hole in wall and making good after laying of pipe etc match the existing surface after taking out old unserviceable complete.

Supply & fix push cock / lifting cock of 15 mm bore in repair for water cooler of any capacity after taking out old unserviceable one.

Supply and fix sheet metal enclosure with 2 pin and earth plug and socket complete with single pole MCB of 20 Amps all as specified & directed by Engineer-in-Charge after taking out old unserviceable one

Taking out old unserviceable condenser coil of 1.5 Ton Split type AC any make with fins cutting inlet & outlet connecting copper pipe and providing new condensor coil with fins and connecting inle t& outlet copper pipe by bracing and replacement of nut bolts etc complete all as specified and directed

Removing electronic unserviceable Printed circuit boards (PCB) from Split type AC 1.5 ton / 2.0 Ton capacity and replacing with new PCBs and testing complete all as specified and directed

Replacement of blower fan motor capacitor Supply & Fix blower fan motor capacitor 4 MFD for AC (Make : Asian / Keil)

Replacement of blower fan motor capacitor Supply & Fix blower fan motor capacitor 6 MFD Water cooler (Make : Asian / Keil)

Replacement of remote handset & Supply of sensor remote handset suitable for 1.5/2.0 Ton capacity split type AC etc. complete all as specified and directed

Taking out old unserviceable cooling coil of Split type AC any make with fins cutting inlet & outlet connecting copper pipe and providing new cooling coil with fins and connecting inle t& outlet copper pipe by bracing and replacement of nut bolts etc complete all as specified and directed

Supply & fix Condensing unit Bracket of any size and type suitable for supporting to out door unit of split type AC including nut, bolts & washers complete all as specified and directed by Engineer-in-Charge.

Repair/replacement of indoor unit of split type AC 1.5 TR cap having 3 star rating complete with all accessories such as installation plate with screws, blower motor, swing motor, filter and PCB etc duly prewired including reconnecting of existing refrigerant piping, electrical connections, drain pipe etc and testing after taking out old one complete all as specified and directed. Make :- Daikin, Carrier, voltas,bluestar

Repair/replacement of outdoor unit of split type AC 1.5 TR cap having 3 star rating complete with all accessories such as hermetically sealed compressor, condenser unit, capacitor, relays, fan motor etc duly prewired including reconnecting of existing refrigerant piping, electrical connections, drain pipe etc and testing after taking out old one complete all as specified and directed. Make :- Daikin, Carrier, voltas,bluestar

Material and labour for cleaning of Air handling ducts(GI/AL) 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 all as directed by the Engineer-in-Charge

Taking down (GI/AL) or any other type of false ceiling/ perforted board and Material and labour new perforted sheet of size 2x2 sqft all as directed by Engineer-in-Charge

Taking down old unserviceable duct insulation, cleaning the duct surface with steel brush to remove dirt, dust and make it free of scale, greases and foreign matter and material and labour for applying two coats of bituminous paint with taking special care over non galvanised part , applying rubber based adhesive CRPX compound manufacted by shaimar tar product on ducts sticking the fiber glass section in the form of pad with the density 24 Kg/Cum and fixed tightly to the surface & all joints to be sealed properly by using sealing compound,cover with aluminium foil kraft paper laminate with minimum overlap of 50mm, seal each lap joint with self adhesive aluminium foil tape 50mm wide complete all as directed by Engineer- in- Charge.

Taking down old and unserviceble CI butter fly valve of any make or size and supply and fixing of new CI butter fly valve slim seal design with clutch lever (P10) all as per IS of 150 mm dia size. Make :- Kirloskar/Audco/SIR as approved

Taking down old and unserviceble CI NRV Fittings of any make or size and supply and fixing of new CI NRV all as per IS NRV of 150 mm dia size. Make :- Kirloskar/Audco/kartar as approved

Material & labour for pressure gauge 0-15 Kg per cm². Make :- Fiebig or equivalent as approved

Disconnecting and taking out old unserviceable filter and supply & fix with new aqua Filter of inbuilt water cooler complete to match the existing and connecting up with existing system including all accessories complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable AHU pre filter and Supply and fix new pre filters (EU-4)synthetic non oven type efficiency 90% down to particular size of 10 micron double knitted twisted polymer fabric (washable) rated with press drop of 6 mm WC to be mounted in AHU filter assembly size as per existing. Make: ASPAWYMAN/DYNA/MHP as approved

Material and labour for cleaning complete DX type cooling coil of AHU with chemical solution caustic soda to remove impurities dust and foreign materials, complete with nylon brush and cleaning cooling coil with fresh water complete all as specified & directed for the cooling coil section of AHU

Supply and Lay in repair LT UG Cable on wall/floor/ceiling with proper saddles, including testing of XLPE Insulated screened PVC bedded, galvanized steel strip or wire armoured electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 70 sq mm 4 core. Note : 1. The cost of Al thimbles/lugs and cable gland etc is including in the quoted rate and no extra payment will be made for it. 2. The excavation, earth work, sand cushioning and brick protection etc will be measured and paid separately under respective items.

All as per item No 65 above of size 95 sq mm X 4 core

All as per item No 65 above of size 120 sq mm X 4 core

Supply & fix in repair in existing panel MCCB,250Amps,4pole ,25 kA and all as specified and directed by Engineer-In-Charge

All as per item No 68 above of capacity of 63Amps,25KA,4pole

All as per item No 68 above of capacity of 40Amps,10KA,4pole

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 disconnecting Condenser/Chiller unit for descaling & plugging them & providing of 15 mm tee out let for local circulation of mild acid solution in the condenser/chiller(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

Taking down old unserviceable and Supply, testing and commissioning of high velocity commercial air curtain unit for prevention of dust and conditioned air losses single phase 220 volts 50Hz made of CRCA sheet of min thickness 18 gauge finished with two coats of red oxide primer and final coat of synthetic enamel paint (over baked) with MS based CRC 18 gauge sq perforated suction grills aluminium alloy fans and single phase electric motor nozzle etc with fitting and accessories so as to produce 1-1.5 M/Sec air velocity at floor level hight 10 feet from ground for door opening 72”x84” which is suitable for auditorium cum cinema hall all as specified and directed by Engr-in-charge. Make: Technocraft or equivalent as approved