REPAIR AND MAINT OF CENTRAL AND PACKAGE TYPE AC WITH MISC ITEM UNDER GE GWALIOR

Note:- 1.Tenderer are advised to visit the site to access the quantum of work and make of articles before quoting the rates.

M&L for dismantling of cooling tower part by part complete and refixing at same position after replacement/repairing of defective parts such as Mechanical Equipment Support,Cooling Tower Louvers,Water Distribution Piping,honey comb fins and painting is also to be done on the outer and inner surface of the cooling tower with existing colour complete all as specifed and directed.Note : Amt of Honey comb finns, louvers should be paid to contractor separately.

M&L for replacement of Honey Comb fines of size 24x12x6 inch for cooling tower of ac plant as per sample/size/make including taking down complete all as specified and directed.

M&L in replacement of Louvers of ac plant as per sample/size/make complete including taking down all as specified and directed.

Taking down the existing UNSV filter from AHU upto to 10500 CFM, cleaning the cooling coil with suitable chemical scale 400 and replace the all unsv filter with new AHU filter as per sample complete all as specified and directed.

M&L in repair for pumping down the existing refrigerant gas in separate cylinder immediately after end of season and fill/re charge the gas at the starting of season carry out pressure leak test by nitrogen gas of the system of AC plant 1 x 65 TR for leak proof valve joint, seal other connected controls flaries etc including identify & rectify of leak defects and maintaining constant pressure of 160 lbs on low side and 200 lbs at high side at least 24 hrs complete all as specified and directed. Note : (i) Necessary leak proof empty cylinders and necessay pumps , tools need to be included in the quoted rate. (ii) If any leakage in the cylinder after pumping down, the diffiencies need to be filled by the Contractor without any extra cost.

M&L in repair for descaling of condenser tube of central AC plant of cap 1 x 65 TR by disconnecting the condenser from the system cleaning by descaling solution of make (as per existing) and descaling solution, cleaning solution, cleaning condenser tube by nylon brush & MS rod of suitable size repalcement of rubber joints and unserviceablenut bolts complete all as specified and directed. Note : Necessary tools need to be included in the above quoted rate.

Taking out old perished/ worn out mechanical oil seal of compessor of AC plant 65 TR at coupling end and replacing it with the (as per existing make), checking for no leakage of oil/gas, testing and commissioning to the entire satisfaction of Engineer in Charge complete all as specified and directed. Note : Gas & Oil required to be charged after replacement of mechanical oil seal shall measured and paid separately.

Taking out old defective burnout motor of capacity 7.5 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enameled copper wire of existing size & guage and replacement of DE & NDE bearing so as to match the manufacturer original specification and refitting the same, testing and commissioning complete all as specified and directed.

M & L in replacement of Single Phase Preventor of the LT Panel of AC Plant,32 Amp 415 V, 50 Hz 3 Phase complete, all as specified and directed.

M & L in replacement of MCCB of the LT Panel of AC Plant, 63 Amps, 4 Pole, C-Curve, AC, 415V, 50 Hz, 3Phase, c-curve complete all as specified and directed.

M & L in replacement of TP the Panel of AC Plant, 100 Amps, 3 Pole, C-Curve, AC, 415V, 50 Hz, 3 Phase, c-curve complete all as specified and directed.Make: Siemens.

Supply only 407C/R22 gas for Compressor as required in servicing complete all as specified and directed.

M&L in replacement of V-belt from AHU motor with the make and size as per sample of V-Belt 33 Nos complete all as specified and directed. Make : Hindon Premium,Endura,Aulto Super,Optiset etc.

All as per Item No 13 here in before but V -belt No 35

All as per Item No 13 here in before but V -belt No 36

M&L in maint and cleaning of cooling tower of central AC Plant by applying suitable chemicals(Scale 400) and removing all deposited dust, foreign material, cleaning of filter and servicing of Ct fan motor, sprinklar and PVC arms and also repairing leakage of water in cooling tower complete all as specified and directed.

M&L in replacement of CT fan blade for CT motor of cooling tower of central AC Plant of make as per site including taking down requirement or as per sample complete all as specified and directed.

M&Lin replacement of spray nozzle of cooling tower of central AC plant of make as per site requirement or as per sample complete including taking down all as specified and directed.

M&L in replacement of water pressure indicating gauge(Caliberated type) fitted water circulation circuit (Range-0 to 100/150 lbs/sq in and 0 to 7/10.6 kg/sq cm complete including taking down all as specified and directed.

Taking out old defective burnout motor of capacity 5 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size & gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

M&L for filling compressor oil grade CPI 120 for compressor complete all as specified and directed.

S&F in replacement of micro process computerised mother board suitable for Central AC Plant upto 65 TR Panel of (as per existing make) complete including taking down all as specified and as directed.

M&L for complete servicing of Duct AC/Cassete AC of any capacity including air filter cleaning,condenser and evaporator coil cleaning,insulation of tubing with expanded polythene foam insulation tubing and making necessary connection including M&L for implastiised PVC pipe medium duly 20mm dia for draining out condensed water all as specified and directed.

S&F PCB Circuit in repair with remote control of Duct AC suitable for any make and capacity of 3 Ton Duct type AC including taking down.

Dismantling and taking out the existing old unserviceable compressor hermetically/rotary sealed unit of any make from Duct AC and S&F New compressorCR42/Rotary sealed unit for Duct AC of capacity 3 Ton and make Emersion or equivalant and test certificate provided by contrator orignal OEM complete all as specified and directed by Engr-in-charge.

M&L Replacement of Power Contractor 32 Amps of the Duct AC,3 pole ,415 V, 50 HZ,3 phase complete all as specified and directed.

M&L in replacement of filter Strainer for Condenser Pipe line of AC Plant complete all as specified and directed.

S&F water level indicator in repair as per sample complete including taking down all as directed.

M&L in replacement of AHU fine filter of size, down to micron and EU-4, size and CFM shall be as per site requirement complete including taking down all as speficied and directed.Make :Blueair Pure,LEVOIT Core.

M&L in replacement of AHU HEPA NANO filter of size, down to micron and EU-4, size and CFM shall be as per site requirement complete including taking down all as speficied and directed..Make :Blueair Pure,LEVOIT Core.

M&L in replacement of AHU coil as persuitable size complete all as specified and directed.

M & L in replacement of 3/2 way mixing valve of suitable size as per site/sample requirement complete all as specified and directed.

S&F in replacement of strip type heater of capacity 2/3 KW including taking down complete all as specified and directed.

S&F temperature sensor in repair at inlet and outlet on both ends of Chiller including taking down complete all as specified and directed.

M&L in replacement of Air Break(Power) contactor 65 Amps of the panel of AC Plant(As per sample), 3 Pole, AC, 415 V, 50 HZ, 3 Phase, including taking down complete all as specified and directed.Make : Siemens.

M&L in replacement of relay 32 Amps of the LT panel of AC Plant, 3 pole, AC, 415 V, 50 Hz, 3 Phase, including taking down complete all as specified and directed.

M&L in repair and complete Sevicing and through checking of of 5TR capacity package type AC unit including leak tesing and pressure testing for 24 hours and gas changing with R-22 refrigarent including testing with Nitrogen gas etc, complete all as specified and directed by Engr-in-Charge.

M & L for taking out the mono block pump shaft, remetalling, welding turning and fixing new bush and sleeve andrefixing in position all as specified of following capacity:

M & L in replacement New hermitically sealed scroll compressor 19/21 TR, 3 phase 440 Volt make : Danfoss Modle No SY 300 - A4PBE complete with oil suitable for 407/410 a Non CFC refrigerant gas etc.and test certificate provided by contractor with orignal OEM. Including Disconnecting and reconnecting with inlet and outlet refrigerant copper pipe with brazing/soldering as required tomake leak proof connection all as specified and directed.

Supply Laying,Commissioning including testing in replacement of cast Iron butterfly Valve as per sample of size 150 MM bore complete all as specified and directed.

All as per Item No 38. here in before but of size 100MM bore

All as per Item No 38. here in before but of size 80MM bore

M&L for complete Servicing/overhauling of motor which is attached to the chiller pump/condenser pump for making it smooth operational and as per direction of Engr-in-Charge. Note : Necessary servicing will be carried out from authorised rep of Manufacturers.

M & L for GI pipe Med grade of 25 mm dia alongwith all fittings and fixtures complete laid in trenches all as specified and directed.

S&F 25 mm Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed ,ISI Mark with new rubber gasket,bolts and nuts including dismantling of old u/s Gate valve fixed at any location of size 25 mm dia all as specified and directed.

Supply, install, testing and commissioning complete Centrifugal Mono block pump set coupled with electrical oprated Motor with single phase 220 volts, 50 Hz required head not less than 10 mtrs,(2 HP),Suc x Del (mm) : 25mm x 25mm including fixed on suitable size MS angle placed on PCC foundation and grouting with suitable size/Nos Nut bolts & all electrical connections, all as required at site complete and directed by engineer in charge. Note:- (i) Quoated rates are includes, PCC foundation work, Nut bolts, MS chanel work, all elctrical connections and suitable size of Copper/aluminium cable (if required on site) not more than 20 RM complete.

S&F fully automatic star delta starter suitable for Up to 10 HP Set Motor 220 volts 50 Hz with Panel Mounting complete with contactor and suitable thermal relay all as specified and directed.

S&F Bucket type 25mm PVC Float Valve in repair for water storage tank including taking down.

S&F Stainless steel ball Float valve in repair male Thread automatic tank pool water level valve with specification of gel silica seals-Acid and alkali resistant-Top fill(bottom fill float valve also avaliable)-Works on gravity feed.Make: Valson

S&F in replacement of chiller Switch as per sample for ac plant including taking down.

M&L in replacement of spring type heater (As per sample) of capacity 2 KW including taking down.

M&L in repair and complete overhauling and through checking of Cold Room Evaporator / Condenser coil for walking cooler including leak testing and pressure testing and gas charging with R - 22 refrigarant including testing with nitrogen gas etc complete all as specified and directed.

M & L in replacement of fan motor with fan blade for walking cooler as per side requirement complete all as specified and directed.

M&L in replacement of water flow switch of low/high pressure as per sample complete including taking down all as specified and directed.

M&L in replacement of expension valve as per sample complete including taking down all as specified and directed.

M&L in replacement of solenoid valve as per sample complete including taking down all as specified and directed.

M&L in replacement of Angle valve of size 1/4 & 3/8 for ac plant as per sample complete including taking down all as specified and directed.

M&L in replacement of liquid line valve for ac plant as per sample/size/make complete including taking down all as specified and directed.

M&L in replacement of Drier core filter of ac plant as per sample/size/make complete including taking down all as specified and directed.

M&L in replacement of Saftey valve (Pressure relief valve) as per sample/size/make including taking down complete all as specified and directed.

M&L in replacement of Liquid line side glass as per sample/size/make complete including taking down all as specified and directed.

M&L in replacement of rectifier of 24 volt for AC Plant panel as per sample/size/make complete including taking down all as specified and directed.

M&L in replacement of Industrial thermometer to check the temp of chiller water for ac plant as per sample/size/make including taking down complete all as specified and directed.

M&L in replacement of chiller water temperator sensor of ac plant as per sample/size/make including taking down complete all as specified and directed.

MCCB 4 Pole, 415 V, Adjustable type, 630 Amps with breaking capacity 36 KA in repair complete including taking down all as specified and directed.

MCCB 4 Pole, 415 V, Adjustable type, 250 Amps with breaking capacity 36 KA in repair complete including taking down all as specified and directed.

M&L in replacement of AHU Stainless Steel Actuator Valves, For Water, Valve Size as per sample including taking down complete all as specified and directed.

M&L in replacement of digital thermostat with temp rang -2°C to 30°C complete wiring which is used to control the 3 way valve system automatically including taking down complete

S&F 900 Watts (Unbreakable Body Sparkless Technology) 100% Copper Air Blower in repair for removing for dust from filter and other AC plant equipment complete all as specified and directed.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique of size 80mm

Taking down the old unserviceable galvanized steel and design supply, fabrication installation of air distribution system Gl sheet section ducting including nut bolt for joining the supply air duct and retum air duct over the celling with necessary Inbuit stiffeners to maintain the desired noise level from AHU to the conditioned room with suitable MS supported arrangements from floor/RCC/roof/celling/walls with adjustable dampers, vanes etc complete as per specification with all its accessories:-

22 Gauge

24 Gauge

S&F in repair on side wall wet & dry bulb thermometer for A/C plant rooms contains red spirit filled in thermometer (non mercury) item length minimum should be 12 inches complete all as specified and directed.

supply and application of duct insulation with engineered nitrile rubber with density 140-180 kg/cum and class 1 rubber based adhesive in a blend of solvents complete all as specified and directed (the thickness of insulation 19mm)

supply and fixing of canvas housing suitable for existing connection AHU damper to supply air duct with nuts and bolts complete all as specified and directed.

M & L for cleaning, servicing overhauling all component of air handling unit including dismantle of side panel where as required, cleaning of cooling coil with caustic soda solution, including welding/brazing whereever required to arrest leakages, cleaning of pre-micro filters, replacing of vertical Gl sheet supports replacement of U/S foam insulation of best quality using adhesive substance to avoid cold air leakages, greasing of bearing and re-assembling all the dismantle components and other packing material to its original postion as existing etc. with and including testing.commissioning of air handling unit of size upto 10000 CFM at optimum efficiency, complete all as specified and directed.

M&L for cleaning, servicing, all component of humidifier, repair and maint of all parts of humidifier take to the working condition should control relative humidity as required on site (Necessary Items deemed to be included in the quoted rate like elements(2/3KW),thermostat, cable, repair of control wring etc

supply and fixing in replacement power contactor 3 pole type MNX 40, 1NO+1NC AUX contracts with standard coll voltage 240 volts complete all as specified & directed

supply and and fixing 200mm dia preinsulated flexible duct made out of galvanised iron duly Insulated with glass wool and alminium foil on outer surface with end clamps including fixing arrangement into dehumidifies outlet and building structure and making suitable opening in wall to fix properly, box type collar with MS jali shall be provided in the building outlet

supply, installation, testing and commmissioning of CI 2/3 way temperature control of following size, suitable for operation upto 10bar with electronically operated actuator for AHU. Water flow through the vavle shall be regulated by rotation of the brass slipper between the main and the by pass ports; it shall be possible to manually rotate the brass slipper through 360 dergree and interchange the main and the common ports, to facilitate installation at the site.