REPAIR/MAINT OF CERTAIN HIGHER SIDE MACHINERY OF CENTRAL AC PLANT AND CONNECTED WORKS AT NAVAL BASE KOCHI

Amount

Material and labour for opening body cover and dismantling of ACCEL make compressor model 4/65,/6/65 and 8/65 ,repairing/ maint and cleaning / servicing the serviceable parts ,replacing gaskets,replacement of shaftseals, O rings,piston rings ,suction / discharge reeds , oil scraper, rings springs and including remetalling,grinding and polishing of shaft/piston rods etc if found defective and ressembling, testing for proper functioning including proper alignment with primovercomplete al as specified and directed. Note: Spares shall be measured and paid seperately

Material and labour for opening body cover and dismantling of VOLTAS Make compressor model 5 H 40, for repairing/ maint and cleaning / servicing the serviceable parts ,replacing gaskets,replacement of shaftseals, O rings,piston rings ,suction / discharge reeds , oil scraper, rings springs and including remetalling,grinding and polishing of shaft/piston rods etc if found defective and ressembling, testing for proper functioning including proper alignment with primover complete al as specified and directed. Note: Spares shall be measured and paid seperately

All as per item 2 above but for compressor 5 H 60 Make : Voltas

All as per item 2 above but for compressor 5 H 120 Make : Voltas

All as per item 2 above but for compressor 5 F 40 Make : Voltas

All as per item 2 above but for compressor 5 F 20 Make : Voltas

Supply only HP/LP Dual static cut out switch (MP-15R) suitable for 5H,5F model compressor of Makle Voltas

Supply only Pressure suction (transduser) sensor (setra) for 5H and 5F model compressor of Makle Voltas

Supply only Discharge pressure and oil transdusers (setra) for 5H and 5F model compressor of Make Voltas

Supply only Shaft seal assly with ring, Shaft seal cover along with gasket for 5H type of Make Voltas

Supply only Shaft seal assly with ring, Shaft seal cover along with gasket for 5F type of Make Voltas

Supply only cylinder sleeve for 5H and 5F model compressor of Make Voltas

Supply only Chilled water sensor with controlling cable as suitable for exising chiller socket/groove in Voltas and Accel chiller units

Supply only Cylinder liner with 'O' rings for accel 4/65, 6/65,8/65.

Supply only Shaft seal assly with ring, Shaft seal cover along with gasket for accel 4/65,6/65,8/65 Type.

Supply only HP/LP Dual static cut out suitable for Accel Make compressor

Supply only Solinoid valve/catchall filters/power element for central AC plants

Supply and fixing in replacement of old unsv Hand Shut off valve ,including welding /cutting the existing ms pipe line (suction and discharge) match the exisitng surface,complete all as specified and directed.

Supply and fixing in replacement of old unsv Liquid line butterfly valve 3/4" ,complete all as specified and directed. Make:Castle

Supply and fixing in replacement of old unsv Expansion valve suitable for central AC upto 40 TR complete all as specified and directed. Make: voltas/Accel

Supply and fixing in replacement of old unsv Expansion valve suitable for central AC 41 to 80 TR complete all as specified and directed. Make: voltas/Accel

Supply and fixing in replacement of old unsv strip heater of capacity 2-3 KW suitable to fit in existing pleanum/fitment stands complet all as specified and directed.

Supply & fixing of replacement inThermal 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. Make:superlone/aerocell

Supply & fixing in replacement of 13 mm thickness Thermal Insulation of exposed area of ducting covering on Out door chiller water pipe lines using Class O Nitrile Rubber outer sideof exisitng pipelines using manufacturer's recommended Rubber based Adhesive in a blend of solvents complete as per Specifications. Make:superlone/aerocell

Material and labour for Superior Quality canvas cloth with zip for connecting places at AHU near pleanum boxes and Ducting connections including necessory rivitings,nut bolts as per existing size and shape complete all as specified and directed

Supply and fixing in replacement of analouge pressure gauge for existing pipe lines and plants as per suitable (dia) size and model including MS bend pipe upto gauge where required at site complete all as specified and directed.

Supply aand fixing in replacement of temperature gauges for existing pipe lines of central AC plants as per suitable size and model complete all as specified and directed

Supply , fabrication and erection in replacement of GI sheet with TDF flange rectangular/square duct of size 22 Gauge made out of 'L' shaped hollow profile, duly factory boxed, incl all accessories such as Corner, Cleat, Carriage bolt,Gasket and appropriate sealant on longitudinal joints etc complete complete all as specified and directed.

All as per item No. 28 above but duct size 20 Gauge

Supply and charging Refrigerant Gas R 22 in sealed cylinder including leak testing by using nitrogen gas all as specified and directed by Engineer in Charge. Note :- 1.Nitrogen will be measured and paid seperately 2.Empty cylinder will returned to contractor after usage

Supply and charging Refrigerant Gas R 407 C in sealed cylinder including leak testing by using nitrogen gas all as specified and directed by Engineer in Charge. Note :- 1.Nitrogen will be measured and paid seperately 2.Empty cylinder will returned to contractor after usage

Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder.

Supply and fix in repairs poly F plus PB classical V- Belts suitable for existing Compressor motor and AHU motor sizes (any type of A -Series) all as specified and directed. Make : Fenner/Dunlopp

Supply and fix in repairs poly F plus PB classical V- Belts suitable for existing Compressor motor and AHU motor sizes (any type of B -Series) all as specified and directed. Make : Fenner/Dunlopp

Supply and fixing in replacement of tire coupling of model U26.2514PX type aloong with nutbolts suitable as existing connections of primemover and compressor complete all as specified and directed.

Supply and charging,testing of compressor oil superior quality in sealed barrel all as specified and directed by Engineer in Charge. Make:IOC/HPCL/BPCL

Supply and replacement scroll type sealed compressor of capacity for package type upto 8.75 TR 3 phase 415V including removing the existing unserviceable compressor with alteration to existing connections including refrigerent charging of suitable refrigerent up to working pressure as required complete all as directed. Make: copeland/Danfoss

Supply ands fixing in replacement of microprocessor control panels VLRP type working with 15VAC for voltas control panels, make for 5H/5F model central AC plant as suitable and fitting for existing panels. Make: voltas(Soft hard)

Supply ands fixing in replacement of microprocessor control panels for blue star make package type AC plant as suitable for inverter/normal operation type machines and fitting with all connected items for smooth operation of plants complete all as specified and directed. Make: Blue Star

Material and labour for brazzing/welding work at refrigerent copper pipe lines(suction/discharge) and rectify the fault and recharge the refrigerent as desired level in AC units. Note: welding mtrl,copper pipe material,welding gas cylinder shall be provided by contractor with his own transport upto near the centrl/Package AC plants inside Naval Base .

Supply,and fixing of Air cooled Floor mounted Out door unit (Condenser unit) suitable capacity for existing Package AC 7.5 TR or nearest higher availble capacity as recommended by OEM including required foundation for base and installation work as per OEM recommendation with making up good existing walls/floors with existing finishes,including suitable electric XLPE cable of size as per OEM recommendations for connecting between indoor,outdoor units and fixed on cable Tray and old out door unit shall deposite to MES stroe yard with contractors own transport complete all as specified and directed. Make: Voltas model DPUA

supply and replacement of digital controller assembly along with control cables for operation of compressor/condenser unit etc of Voltas make suitable for capacity of 7.5 TR complete all as specified and directed.Make :Voltas

Supply and fixing in replacement of old unsv Expansion valve suitable fro packeage type Ac plant upto 7.5 TR /8.75TR complete all as specefied and directed. Make: voltas/Blue star

supply and replacement of indoor filter of Package AC units as suitable in existing frame up to capacity 7.5 TR/8.75TR complete all as specefied and directed.

suply and fix Fan coil unit capacity of 2.75 TR to 3 .00 TR working with 1200 CFM , Made of steel of superior quality enclosure to Single phased motors are used for noise reduction of the centrifugal blades Long life Quality aluminium fins and copper tubes are used for efficient cooling and heating Insulated drain pans complete all as specified and directed. Make: as recommended by OEM (i.e Voltas)

Material and laying of Refrigerant piping (Suction & Discharge) Hard drawn from hard copper tube of suitable sizes as recommended by OEM , with copper elbows, tees all connecting material for Indoor and outdoor unit connections. Note: One run of both Suction & Discharge pipe line along with insulation shall be measured as one length.

Supply and fixing of Hard PVC Piping 40 mm up to drain disposal area with nitrile rubber insulation complete all as specified and directed.

Supply and fixing 600mm X600mm fresh air inlet made-out of GI sheet 22 SWG duly fabricated with splitter damper arrengement and cowl and bird screen complete all as specified and directed.

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

AR Traders

Albert Rebello and Company

National Creations