REPAIR / ROUTINE PREVENTIVE MAINT AND REPLACEMENT OF FILTERS, DUCT CLEANING AND REPAIR TO FCUS, CSUS, COOLING TOWERS, CONDENSOR AND CHILLED WATER PIPE LINES AND AHUS AT NAVAL BASE KOCHI

Amount

Material and labour for dismantling of defective condenser/chiller pump motor of capacity upto and including 5 HP after disconnecting electric connection from motor terminal, transport to local work shop and taking out of bearing and re-metaling the bearing housing shaft, including rewinding with same gauge super enamelled copper insulated wire winding, turning to the required size, cleaning of starter, varnishing, drying, re-assembling, painting the motor to bring in original state including fixing on the foundation complete all as specified and directed by Engr-in charge.

All as per item No 1 here-in-before but for capacity above 5 HP and upto 7.5 HP complete all as specified and directed

Material and labour for dismantling of defective cooling tower fan motor of capacity upto 3 HP including disconnectiong electric connection, fan blade and opening the motor cover, removing the burnt coil, cleaning , rewinding with Super Enamelled copper wire of existing size , insulating , varnishing , heating , baking , re assembling , replacement of motor bearing of existing size including transportation from existing location to workshop and back, refixing of electrical connections , refixing of fan bush ,and balancing of fan, recommissioning complete all as specified and directed by Engineer-in-charge.

All as per item No 3 here-in-before but for capacity above 5HP and upto 7.5 HP complete all as specified and directed

All as per item No 3 here-in-before but for capacity above 7.5HP and upto 15HP complete all as specified and directed

Material and labour for dismantling of defective AHU motor of capacity 3 HP including blower after disconnectiong electric connection from motor terminal and opening the motor cover, removing burnt coil, cleaning , rewinding with Super Enamelled copper wire of existing size , insulating , varnishing , heating , baking , re assembling , replacement of motor bearing of existing size including transportation from existing location to workshop and back, refixing of electrical connections, testing after repair , refixing of blower belt, alignment with blower with motor, recommissioning complete all as specified and directed by Engineer-in-charge.

All as per item No 6 here-in-before but for capacity above 3 HP and upto 7.5 HP complete all as specified and directed

All as per item No 6 here-in-before but for capacity above 7.5 HP and upto 15 HP complete all as specified and directed

Supply and replacement in repair round type cooling tower sprinkler aluminium with distributer pipe & stay rod suitable for capacity upto 60 TR complete all as specified and directed

All as per item No 9 here-in-before but suitable for 80 TR complete all as specified and directed

All as per item No 9 here-in-before but suitable for 100 TR complete all as specified and directed

All as per item No 9 here-in-before but suitable for 120 TR to 150 TR complete all as specified and directed

Supply and fix in replacement of PVC Fills of size 600x300x150mm suitable for 10 TR to 150 TR capacity cooling tower complete all as specified and directed

Supply and fix in repair PVC nozzles 3/4'' dia for rectangular type cooling tower all as specified and directed.

Supply and fix in replacement of PVC heavy grade pipe as per the undermentioned size with having drilling holes for water spray distribution line in cooling tower including complete connection with hub, sprinklers of existing cooling tower fan shaft complete all as specified and directed

40 mm dia

50 mm dia

65 mm dia

80 mm dia

All as per item No 17 here-in-before but of size 100mm complete all as specified and directed

Supply and Fixing in repair CI 'Y' strainer of size 50 mm dia in condensing/chilled water line complete dia including modification of pipe line for fixing the strainer and replacement of flanges and nuts & bolts, packing etc complete all as specified and directed by Engineer incharge

All as per item No 19 here-in-before but of size 65 mm dia complete all as specified and directed

All as per item No 19 here-in-before but of size 80 mm dia complete all as specified and directed

All as per item No 19 here-in-before but of size 100 mm dia complete all as specified and directed

All as per item No 19 here-in-before but of size 125 mm dia complete all as specified and directed

Supply and fix in repair CI butterfly valve full open with operating handle of size 50 mm dia including replacement of old nuts & bolts, packings modification of flanges if necessery and complete all as specified and directed

All as per item No 24 here-in-before but of size 65 mm dia complete all as specified and directed

All as per item No 24 here-in-before but of size 80 mm dia complete all as specified and directed

All as per item No 24 here-in-before but of size 100 mm dia complete all as specified and directed

All as per item No 24 here-in-before but of size 125 mm dia complete all as specified and directed

Supply and fix in repair for GI tubing 65 mm dia medium grade including welding, connecting and two coats of synthetic enamel paint complete all as specified and directed

All as per item No 29 here-in-before but of size 80 mm dia complete all as specified and directed

All as per item No 29 here-in-before but of size 100 mm dia complete all as specified and directed

All as per item No 29 here-in-before but of size 125 mm dia complete all as specified and directed

Supply and fix in repairs PVC makeup water tank of 500 ltrs capacity ISI marked triple layered of suitable height and size with necessary inlet from the existing water connection point as directed by Engineer in charge at site by using pipe line connections for inlet & out let should be suitable sizes of CPVC pipes for required water discharge and outlet for continuous water flow for the smooth function of system, overflow connection and float valve assembly and a butterfly valve to connect the cooling tower complete all as specified and directed

All as per item No 33 here-in-before but of capacity 1000 ltrs complete all as specified and directed

Supply and fix in repairs ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed of size 20mm (Minimum weight 20mm - 210 gms) complete all as specified and directed

Supply and fix in repairs ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic bal screwed for iron pipe and fixed of size 25mm (Minimum weight 25mm - 455 gms) complete all as specified and directed

Supply and charging refrigerant gas R 22 in sealed cylinder complete all as specified and as directed

Supply and charging refrigerant gas R 134A in sealed cylinder complete all as specified and directed

Material and labour for attending day to day complaints pertains to various capacity of AC plants as and when required by mechanic and helper with necessary tools and plants for checking the equipment at existing location, findinding defect in cooling tower, fan coil units, cealing suspended units condenser and chilled water pipe line etc complete all as specified and directed

Supply and fix in repair dual plate check valve of size 50 mm dia including replacement of old nuts and bolts, packings modification of flanges if necessaery and complete all as specified and directed

All as per item No 40 here-in-before but of size 65 mm dia complete all as specified and directed

All as per item No 40 here-in-before but of size 80 mm dia complete all as specified and directed

All as per item No 40 here-in-before but of size 100 mm dia complete all as specified and directed

All as per item No 40 here-in-before but of size 125 mm dia complete all as specified and directed

Material and labour for removal of complete FRP cooling tower including fan CT motor, fills, sprinkler/nozzle, pipes, valves and preparation of damaged surface and apply FRP sheet and suitable chemical solution (min two coat) of required quantity to make it leak proof and complete re-assembling including replacement of old nuts, bolts and washers etc as per site requirement including refixing of all removed items back fitting, alignment of fan motor and testing complete all as specified and directed upto capacity 100 TR.

All as per item No 45 here-in-before but for capacity above 100 TR and upto 150 TR complete all as specified and directed

All as per item No 45 here-in-before but for capacity above 150 TR and upto 240 TR complete all as specified and directed

Material and labour for monthly servicing including taking out complete air filters from ceiling suspended type AHU carefully and cleaning including arrangement of scaffolding/ladder for removing dust by using pressure water, greasing shaft and bearings, alignment of blower motor, tightening of blower V belt and refixing filters after drying complete all as specified and directed by Engineer-in-charge. Note :- Replacement of Air Filter shall be resposibility of contractor if damage occur while removing or refixing.

Material and labour for Monthly Servicing to the indoor unit Fan Coil Unit clean with mild Air blower in the coil side including arrangement of scaffolding/ladder for remove the inside fine filter, cleaning and fix in proper place , check the drainage water/chilled water pipelines, rectify if any leakage found complete all as specified and directed

Material and labour for dismantling of defective condenser/chiller pump motor of capacity upto and including 5 HP after disconnectiong electric connection from motor terminal, removing defective bearing, water seal, gland bush, suitable gaskets/rubbers, nut bolts, terminal box and gland packing including reassembling, painting and refixing at same location/connecting of all electrical connections all as specified and as directed.

All as per item No 50 here-in-before but for capacity above 5 HP and upto 12.5 HP complete all as specified and directed

Material and labour for removing defective Micro Processor control, model no VLRP 4/5/6 Panel board of exisiting chiller unit of AC plant capacity 15 TR to 120 TR , replacing the relay assembly, calibration of Micro processor, return to site, refixing in position, setting all readings and run testing complete all as specified and directed by Engineer in charge.

Supply and fix in replacement HEPA filter at (operation theatre-1,2,3) from inside operation theatre complex at INHS Sanjivani hospital with HEPA chamber box type 0.3 microns, H 13 grade, MOC (Magnesium oxy chloride) aluminium anodised casing. Media : water repellent glass micro fibre media with aluminium corrugated foil seperators. Construction : pleated type. Initial pressure drops: 25 mm WG, Air Flow : 1000 CFM, efficiency 99% down to 0.3 microns, gasket : Provided on air outlet side, size: 610X610X75 mm (box type)/same size as existing at site complete all as specified and directed

Supply and fix in replacement of pre filter from inside operation theatre fixed in the laminar return area, supply and fixing of pre filters , flange type, EU4 grade, 10 micron, MOC:aluminum casing, Media : non-woven synthetic with HDPE mesh on air outlet side aluminium mesh pleated support. IPD: 4.5mm, efficiency 90% down to 10 micron, air flow: 1000cfm, gasket ; Provided size : 660x 360x50mm ( Flange)

Material and labour for checking of existing condition of air ducts making the arrangement of visualization and the process for disinfection for Indoor air quality of AC ducts including plenum box, supply air, return air ducts with robotic camera, compressed air with flipper, HEPA Negative machine, air compressor, various types of air nozzles complete all as specified and directed

Material and labour cleaning of operation theater with 100 % fresh air type AHU cooling coil by using Bio Enzyme coil cleaner, pressure jet pump so as to improve heat transfer and avoid fungus formations appx room sizes 8 mtr x 8 mtrx 4 mtr complete all as specified and directed

Supply and fixing plastic mesh heavy duty, mesh size less than 10 mm X 10 mm for cooling tower with necessary fixing arrangements complete all as specified and as directed

Material and labour for Welding/cutting of MS Pipe/Rail/MS flanges etc at various locations of AC Plants including with all necessary tools and equipements all as specified and directed.

Supply and fixing of cooling tower fan blade upto capacity 30 TR suitable in existing CT fan hub with suitable length (approx 300mm to 450mm) size with aluminium alloy material with necessary nuts, bolts, and washers complete all as specified and directed.

Supply and fixing of cooling tower fan blade upto capacity 35 TR to 100 TR suitable in existing cooling tower fan hub with suitable length (approx 300mm to 450mm) and size with aluminium alloy material with necessary nuts, bolts, and washers complete all as specified and directed.

Supply and fixing of water flow /pressure differential switch, 5-15 Amp, complete all as specified and directed.

Dismantling old cooling coil from AHU unit of capacity upto 40 TR by disconnecting refrigerant gas/chilled water pipe line and leak testing with pressurised water and brazing/welding of cooling coil and water pipelines and refixing the same in the existing AHU at site including all connections, fabrication works and testing complete all as specified and as directed by Engr-in-Charge.

Material and labour for dismantling of ceiling suspended concealed FCU 3 TR of Model No MKT3-1200G12, 11 KW, 1200 CFM, Blow through type from the site and refixing after servicing/winding of motors and blowers and replacement of cooling coil as per specifications existing at site complete repairs/replacement of damaged puff body portion, drain pan including fabrication and supporters work complete all as specified and directed

Supply and fixing digital thermostat complete all as specified and as directed.

Material and labour for dismantling old unserviceable module actuator and supply and fixing module actuator 140 sec, 240V AC 50 Hz, as per eixisting size including 3 way ON/OFF valve of size existing at site for controlling the chilled water flow, complete wiring all as specified and as directed.

Material and labour steel structural fabrication works fabricated from structural steel sections including nuts,cable trays,clamps bolts,washers, welding ,bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primary coat, one under coat and one finishing coat of paint complete all as specified and directed.

Supply and fixing 600MMX600MM fresh air inlet made-out of GI sheet 22 SWG duly fabricated with splitter damper arrangement and cowl and bird screen complete all as specified and directed.

Supply and fixing of supply/return air diffusers of machine fabricated madeout of aluminium 18G sheet construction of various sizes duly powder coated of approved colour to suitable as existing duct projestions/openings including GI collar VCD for supply air inlet all as specified and directed.

Supply and fix in repairs of thermal insulation of exposed area of ducting calss 'O' with Glass cloth covering on out door ducts ,exposed to sunlight using class O Nitrile Rubber of 13 mm thickness outer sideof exisitng ducts using manufacturer's recommended Rubber based Adhesive in a blend of solvents complete as per specifications.

Supply and fixing of replacement of thermal Insulation of exposed area of ducting with glass cloth covering on out door ducts ,exposed to sunlight using class 'O' Nitrile rubber of 19 mm thickness outer side of exisitng ducts using manufacturer's recommended rubber based adhesive in a blend of solvents complete as per specifications.

Material and labour for providing eco friendly vapour barrier for HVAC chilled water pipe lines by applying fevicol make non flammable, low VOC, anti fungal, water based lag coating on the chilled water pipe line surface uniformly by brush or spreader, wrap the duct with 7 mm thick canvas or glass fiber cloth tightly with overlapping for avoiding air gaps, allow to dry and apply an additional coating over the chilled water pipe line in similar method all as per standard complete all as specified and directed

Supply and fixing 26 gauge aluminium cladding type on external surface of chilled water pipeline of any size insulation including one layer of polythene sheet (80 GSM) wrapped over the insulation as a vapour barrier complete and necessary scaffolding equipments whereever necessary complete all as specified and as directed.

Glacier Cooling Solutions Private Limited (BID ID -3374036)

ELAN ENGINEERS (BID ID -3379855)

AR Traders (BID ID -3374600)