REPAIR/ MAINTENANCE 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 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

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,suction valeve reeds,dowety rings, 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 No. 2 above but for compressor 5 H 60 complete al as specified and directed. Make : Voltas

All as per item No. 2 above but for compressor 5 H 120 complete al as specified and directed. Make : Voltas

All as per item No. 2 above but for compressors 5F40 complete al as specified and directed. Make : Voltas

All as per item No. 2 above but for compressors 5F20 complete al as specified and directed. . Make : Voltas

Supply only the following spares for compressors 5H Model complete al as specified and directed. of Make Voltas :- (a) Pair of Connection rod bearing for 5H Model

(b) Connecting Rod bush for 5H Model

(c)Connecting Rod Pin for 5H Model

(d)Piston Pin for 5H Model

(e) Gasket for 5H Model

(f) Piston ring compressor for 5H Model

(g) Oil Ring for 5H Model

(h) Shaft seal cover for 5H Model

(i) Shaft seal gasket for 5H Model

(j) Shaft seal assly with ring for 5H Model

(k) Connecting Rod for 5H Model

(l) Cylinder sleeve for 5H Model

(m) Cylinder liner with 'O' rings for 5H Model

(n) Solenoid valve for 5H Model

(o) Power element 5H Model

(q) Catchall filters for 5H Model

Supply and fixing suction pressure transdusers (setra) for 5H Model complete al as specified and directed.

Supply and fixing discharge pressure transducers (Setra) for 5H Model complete al as specified and directed.

Supply and fixing oil pressure transducers (Setra) for 5H Model complete al as specified and directed.

Supply only the following spares for compressors 5F Model of Make Voltas :- (a) Pair of Connection rod bearing for 5F Model

(b) Connecting Rod bush for 5F type

(c) Connecting Rod Pin for 5F Model

(d) Piston Pin for 5F Model

(e) Gasket for 5F Model

(f) Piston ring compressor for 5F Model

(g) Oil Ring for 5F Model

(h) Shaft seal cover for 5F Model

(i) Shaft seal gasket for 5F Model

(j) Shaft seal assly with ring for 5F Model

(k) Connecting Rod for 5F Model

(l) Cylinder sleeve for 5F Model

(m) Cylinder liner with 'O' rings for 5F Model

(n) Solenoid valve for 5F Model

(o) Power element for 5F Model

(p) Catchall filters for 5F Model

Supply and fixing suction pressure transdusers (setra) for 5F Model complete al as specified and directed.

Supply and fixing discharge pressure transducers (Setra) for 5F Model complete al as specified and directed.

Supply and fixing oil pressure transducers (Setra) for 5F Model complete al as specified and directed.

Supply only the following spares for compressors ACCEL Model :- (a) HP/LP Dual static cut out switch (MP-15R) for ACCEL Model

(b) Pair of Connection rod bearing for ACCEL Model

(c) Connecting Rod bush for ACCEL Model

(d) Connecting Rod Pin for ACCEL Model

(e) Piston Pin for ACCEL Model

(f) Gasket for ACCEL Model

(g) Piston ring compressor for ACCEL Model

(h) Oil Ring for ACCEL Model

(i) Shaft seal cover for ACCEL Model

(j) Shaft seal gasket for ACCEL Model

(k) Shaft seal assly with ring for ACCEL Model

(l) Connecting Rod for ACCEL Model

(m) Cylinder sleeve for ACCEL Model

(n) Cylinder liner with 'O' rings for ACCEL Model

(o) Solenoid valve for ACCEL Model

(p) Power element for ACCEL Model

(q) Catchall filters for ACCEL Model

Supply and fixing suction pressure transdusers (setra) for ACCEL Model complete al as specified and directed.

Supply and fixing discharge pressure transducers (Setra) for ACCEL Model complete al as specified and directed.

Supply and fixing oil Pressure transducers (Setra) for ACCEL Model complete al as specified and directed.

Supply and fixing Chilled water thermister sensor with controlling cable as suitable for existing chiller socket/groove for any chiller units complete all as specified and as directed.

Supply and fixing temperature sensor with cable for any central AC units complete all as specified and as directed

Supply and fixing temperature sensor with cable for ACCEL Model units complete all as specified and as directed

Preventive maintenance and regular check up of round the clock AC Plant (Chiller and DX Type) (24 Hrs running plant) chiller unit of any model with complete accessories, controlls comprising of compressors with standared fittings, electric motor with star delta starter of suitable capacity for 2 x 60 TR = 120 TR in operation and 1 x 60 TR as standby at Seaking simulator, INS Garuda operating on R-22, DX evaporator, shell and tube condenser, suitable expansion device, chilled water pumps -3 Nos, condenser water pump - 3 Nos. The entire system to be checked for every month interval up to contract duration and made serviceable in case of any defects observed during the routine check up for system for smooth functioning complete all as specified and as directed. Note:- (i) Programming/ Software updatation of display panels shall be included in quoted rates (ii) Major spares for replacement shall be measured and paid under relevant items (iii) Replacement of pump glands,greasing,routine maintenance of all motors& pumps,checking/servicing of 03 way valves mechanism,butterfly valves,NRVs,balancing valves,fire dampers diffusers and panels to ensure trouble free running of plants including replacement of minot parts costing upto Rs.500.00 to be included in the quoted rate..

All as above item No 22 but for AC plant of capacity 2 x 26 TR = 52 TR in operation and 1 x 26 TR as standby at JOC complete al as specified and directed.

All as above item No 22 but for AC plant of capacity 2 x 20 TR = 40 TR in operation and 1 x 20 TR as standby at AED, INS Garuda complete al as specified and directed.

All as above item No 22 but for AC plant of capacity 2 x 17 TR = 34 TR in operation and 1 x 17 TR as standby at INHS Sanjivani Hospital, Naval Base Kochi complete al as specified and directed.

All as above item No 22 but for AC plant of capacity 2 x 15 TR = 30 TR in operation and 1 x 15 TR as standby at Comcen complete al as specified and directed.

All as above item No 22 but for AC plant of capacity 2 x 15 TR = 30 TR in operation and 1 x 15 TR as standby at MOC complete al as specified and directed.

All as above item No 22 but for AC plant of capacity 2 x 15 TR = 30 TR in operation and 1 x 15 TR as standby at Antenna Park complete al as specified and directed.

Supply and fixing in replacement of old unsv Hand Shut off valve upto 50mm, 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 expansion valve suitable for central AC upto 20 TR complete al as specified and directed. Make: Voltas/ACCEL

All as above item No 30 but capacity above 20 TR upto 40 TR complete al as specified and directed. Make : Voltas

Supply and fixing in replacement of old unsv relief valve suitable for central AC upto 120 TR complete al 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 & fixingf of replacement 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. Make:superlone/aerocell

Taking down old unserviceable canvas form AHUs duct to pleneum/Main supply air duct including dismantle of air dampers/fire dampers and supply and fix new premium quality leather type canvas locking rivits and sealing of silicon material of any size as per existing at site complete al 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 38 above but for duct size 20 Gauge complete al as specified and directed.

Supply and charging Refrigerant Gas R 22 in sealed cylinder all as specified and directed.

Supply and charging Refrigerant Gas R 134A in sealed cylinder complete al as specified and directed.

Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder of 6 cum Note for Item No 43 to 45 : Empty cylinder will returned to contractor after usage only.

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 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 fixing in replacement of tyre coupling along 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.. Make:IOC/HPCL/BPCL

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

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

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

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

Supply ands fixing in replacement of microprocessor control panels for blue star make package type AC plant as suitable for invertor/normal operation type machines and fitting with all connected items for smooth operation of plants complete all as specified and as 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 complete al as specified and directed. . Note: welding material,copper pipe ,welding gas cylinder shall be provided by contractor with his own transport upto near the central/Package AC plants inside Naval Base .

Supply and replacement of scroll type compressor of capacity of package type upto 8.75 TR 3 phase 415V including removing the existing unserviceable compressor with alteration to existing connections incl refrigerant charging of suitable refrigerent upto working pressure as required complete al as specified and directed. . Make : Copeland/Danfoss

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 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.

M & L 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.

Taking down old existing GI pipes, supply , laying including welding, connecting and painting two coat of synthetic enamel paint complete of medium grade with all fittings and fixtures laid in floors or fixed to walls and ceilings for 200mm size complete al as specified and directed.

All as per item No.58 above but for 150 mm complete all as specified and directed.

All as per item No. 58 above but for 125 mm complete all as specified and directed.

All as per item No. 58 above but for 100 mm complete all as specified and directed.

All as per item No.58 above but for 80 mm complete all as specified and directed.

All as per item No.58 above but for 65 mm complete all as specified and directed.

Supply & fixing of replacement of 13 mm thick Thermal Insulation for chiller water pipe lines using Class O Nitrile Rubber of exisitng pipelines using manufacturer's recommended Rubber based Adhesive in a blend of solvents complete as per Specifications complete all as specified and directed. . Make:superlone/aerocell/armocell

M&L for attending breakdown complaints pertains to higher side of various Central AC plant of any capacity as and when required by Ref-Mech and helper , with neccessary T&P for checking the equipment at existing location, find out the faults to the equipments, complete and rectification of minor problems(solinoid failures,oil pressure/ oil/suction/discharge pressure re settings,sensor errors,compressor control panel resetting,replacement/resetting of transduser etc) to make the plant functional in all respect complete all as specified and directed. .

Albert Rebello and Company

AISWARYA ENTERPRISES

GRAND SERVICES

MS BUILDERS

N.O. Antony Contractors

AR Traders

K.V.GEORGE AND COMPANY