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| 1 | Supply and fixing in replacement of the 3-way mixing valve size 50mm dia with necessary fittings and supports all as per standards and as directed. |
| 2 | All as per item No.1 but 40 mm dia |
| 3 | Supply and fixing in replacement of 230 volt operated modulating type Actuator for 3 way mixing valve including necessary wiring between the Actuator, thermostat, and CSU control panel and the Valve actuator should be interlocked with the CSU control panel for bypassing the chilled water when the CSU is in off condition all as per standards and as directed. |
| 4 | Supply and fixing in replacement of 230 volt operated 4 to 20ma or 0-10 volt analog output digital thermostate suitable for 3 way mixing valve actuator fixied in CSU including necessary wiring between the Actuator, thermostat, and CSU control panel and the Valve actuator should be interlocked with the CSU control panel for bypassing the chilled water when the AHU is in off condition all as per standards and as directed. |
| 5 | Supply and replace of 4\\" dia 0 to 10 kg/cm2 range pressure gauge with SS siphon and pet cock installed in AHU chilled water pipeline all as per standards and as directed. |
| 6 | Supply and fixing in replacement of flexible canvas from the CSU with new canvas all as per standards and as directed. |
| 7 | Supply and fixing in replacement of removable type factory made pre-filter of 10 microns of suitable size with MS/ GI/Anodised Aluminium Frame suitable for CSU complete all as per standards and as directed. |
| 8 | Supply and fixing in replacementof thermal insulation of chilled water pipe with new 50 mm thk EPS/PUF pipe sections glued with hot bitumen or CPRX compound after cleaning the damaged area. wrapping the new insulated area with polythene sheet and chicken mesh as vapor barrier and covering with cement mortar all as per standards and as directed. |
| 9 | M & L for general servicing of CSU by cleaning the internal parts in general, greasing the blower and motor bearings, pressure cleaning the cooling coil using an alkaline- based cleaning agent, cleaning the drain tray, cleaning the Y strainers, rechecking the motor and pulley alignment, and checking the performance of the CSU all as per standard and as directed. |
| 10 | M & L for carefully removal and refixing of existing false ceiling keeping in safe custody for carrying out CSU works, restoring to original condition after completion, all as per standards and as directed. Note any damage caused shall be repaired/replaced free of cost |
| 11 | Supply and laying in replacement of CPVC pipe of 25 mm dia with all fittings, valves and supports for providing drain for AHU, and cooling tower makeup complete all as specified and directed. |
| 12 | Supply and fixing in replacement of cartridge type high pressure cut out suitable for Voltas make scroll chiller complete all as specified and as directed. |
| 13 | Supply and fixing in replacement of cartridge type low pressure cut out suitable for Voltas make scroll chiller complete all as specified and as directed. |
| 14 | Supply and fixing in replacement of temperature sensor with cable suitable for Voltas make scroll chiller complete all as specified and as directed. |
| 15 | Supply and fixing in replacement of old unsv expansion valve suitable for Voltasmake scroll chiller complete all as specified and as directed. |
| 16 | Supply and charging Refrigerant Gas R 407c in sealed cylinder all as specified and directed. |
| 17 | Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder of 6 cum. Note Empty cylinder will returned to contractor after usage only complete all as specified and as directed. |
| 18 | Supply ands fixing in replacement of microprocessor of control panel suitable for Voltas make scroll chiller complete all as specified and as directed. |
| 19 | Supply ands fixing in replacement of CT of the Voltas make scroll chiller control panel complete all as specified and as directed. |
| 20 | Material and labour for brazzing/welding work at refrigerent copper pipe lines and rectify the fault and recharge the refrigerent as desired level in AC units including carrying out leak complete all as specified and as directed.Note: welding material, copper pipe, welding gas cylinder shall be provided by contractor with his own transport upto near the AC plants inside Naval Base . |
| 21 | Supply and laying of GI pipe 100mm dia bore medium grade including welding, connecting and painting two coat of synthetic enamel paint over a coat of primer complete with all fittings and fixtures laid in floors or fixed to walls and ceilings including taking down existing GI pipe. |
| 22 | All as per item No.21 but 80 mm |
| 23 | All as per item No.21 but 65 mm |
| 24 | All as per item No.21 but 50 mm |
| 25 | Taking down the old unserviceable MS C-class pipes and supplying, laying, and fixing new pipes 80mm size with necessary fittings, including welding, all as per standards. |
| 26 | All as per item No.25 but 65 mm |
| 27 | All as per item No.25 but 50 mm |
| 28 | Supply and fixing in replacement of 100 mm dia (PN16) Butterfly Valves with gaskets, GI bolts, nuts, and washers, and the including necessary welding works all as per standards and as directed. |
| 29 | All as per item No.28 but 80 mm dia (PN16) |
| 30 | All as per item No.28 but 65 mm dia (PN16) |
| 31 | All as per item No.28 but 50 mm dia (PN16) |
| 32 | Taking down the unserviceable dual plate check valve, Supply and fix dual plate check valve of size upto 80 mm dia including replacement of old nuts & bolts, packings modification of flanges if necessaery and all as per specified and directed.Make:As approved by GE |
| 33 | Supply and Fixing in in replacement of CI 'Y' strainer upto size 100 mm dia in condensing water line complete dia including modification of pipe line for fixing the strainer and replacement of flanges and nuts & bolts, packing etc all as specified and directed. Make:Advance/Leader/Castlers/Sant |
| 34 | Supply and fixing, in replacement, of 304-grade stainless steel filter core for 'Y' strainers of size 80/65 mm dia in the condensing and chilled water lines, complete with replacement of gaskets, nuts, bolts, and all accessories as specified and directed. |
| 35 | M & L for servicing of existing condenser pump of capacity upto 7.5 HP after disconnecting electric connection from foundation, removing defective bearing, re- metalling the bearing housing shaft, replacing with new bearings, gland bush, gaskets, with mechanical seal type gland packing, nut and bolt, air release valve, cooling fan cover and reassemble, refitting and recommissioning including refixing of all electrical connections, testing, painting, base foundation work alongwith channels/accessories, incl transportation to local workshop and back after repair, testing complete all as specified and directed. |
| 36 | M & L for servicing of existing Chiller pump of capacity upto 7.5 HP after disconnecting electric connection from foundation, removing defective bearing, re- metalling the bearing housing shaft, replacing with new bearings, gland bush, gaskets, with mechanical seal type gland packing, nut and bolt, air release valve, cooling fan cover and reassemble, refitting and recommissioning including refixing of all electrical connections, testing, painting, base foundation work alongwith channels/accessories, incl transportation to local workshop and back after repair, testing complete all as specified and directed. |
| 37 | M & L for servicing of existing CT fan motor of capacity upto 5 HP including disconnectiong electric connection, fan blade and opening motor, taking out bearing and re-metalling the bearing housing shaft, replacement of motor bearing of existing size including transportation from existing location to workshop and back, refixing of electrical connections , testing of RPM after repair , balancing of fan, recommissioning complete all as specified and directed. |
| 38 | Supply and fixing in replacementin repair round type cooling tower sprinkler aluminium with distributer pipe & stay rod suitable for capacity 26 TR all as specified and directed. |
| 39 | S&F in replacement of PVC Fills of size 150x300x600mm, with fine quality all as specified and directed. |
| 40 | M & L 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, fin support structure, fan structure, repair/replacement of drain pot, float valve etc as per site requirement including refixing of all removed items back fitting and painting of entire cooling tower, pipe lines of existing colour, alignment of CT fan and sprinkler/nozzle and make it vibration free smooth functioning and testing all as specified and as directed of capacity 26 TR. |
| 41 | Supply and fixing in replacement of plastic mesh heavy duty, mesh size less than 10 mm X 10 mm for cooling tower with necessary fixing arrangements all as specified and as directed. |
| 42 | Supply and fixing in replacement of cooling tower fan blade of capacity 26 TR suitable in existing CT fan hub with suitable length (approx 300mm to 450mm) / as per existing at site and size with aluminium alloy material with necessary nuts, bolts, and washers complete all as specified and directed. |
| 43 | Supply and fixing in replacement of water flow /pressure differential switch, 5-15 Amp, complete all as specified and directed. |
| 44 | M& L for painting of central AC plant cooling tower with two coats of synthetic enamel spray paint of existing colour paint after preparation of existing surface of 26 TR capacity all as specified and as directed |
| 45 | M& L for painting of central AC plant of capacity of 26 TR including of compressors, condensers, pumps and motors frames, panel board complete including chiller and condensing water pipe lines with two coats of synthetic enamel spray paint of existing colour after preparation of existing surface of each unit and marking set numbers, SM/MES numbers all as specified and directed. |
| 46 | M & L for Cleaning of shell and tube condenser shell with capacity of upto 26 TR by isolating the condenser shell, disconnecting water inlet/outlet completely remove the exisiting water from condenser attach necessary hoses to condenser to circulate descaling chemical by using pump for 3-5 hrs, opening both sides of condenser brushing with nylon rod and flushing with fresh water including replacement of gaskets complete leak test (if reqd) and testing as directed. Note: Nitrogen gas for leak test shall be measured and paid seperately |
| 47 | M & L 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. |
| 48 | Supply and fixing in replacemen of digital Ammeter with CT, 3 phase all as specified and directed. |
| 49 | Supply and in replacement of digital Voltmeter 3 phase all as specified and directed. Please Enable Macros to View BoQ information |
| 50 | Supply and in replacement of digital Voltmeter 3 phase all as specified and directed. Please Enable Macros to View BoQ information |
