Tender For Repair/Maintenance Of Package Air-Conditioning Units Installed At Technical Area Including Certain Misc E/M Work At Af Stn Sulur; 1 SCHEDULE A BOQ 2 S&F in replacement of temprature gauge 0-120 degree C all as specified and directed by Engr-in-Charge. 3 S&F in replacement of pressure gauge 0-7kg for 15 TR aC plant at EW block all as specified and directed by Engr-in-Charge. 4 S&F in replacement of butterfly valve size 50/65 mm with rubber gas kit complete all as specified and as directed. 5 S&F in replacement of balancing valave 50 mm with flange gaskit all as specified and directed by Engr-in-Charge. 6 S&F in replacement of DP switch all as specified and directed by Engr-in-Charge. 7 S&F in replacement of relay for suitable for package AC plant upto 15 TR capacity all as specified and directed by Engr-in-Charge. 8 S&F in replacement of contactor SP 12 to 40 AC suitable for package AC plant complete all as specifed and directed by Engr-In-Charge. 9 S&F in replacement of `V belt size B-60 complete all as specified and as directed. 10 S&F in replacement of `V belt size B-95 complete all as specified and as directed. 11 S&F in replacement of V belt A-40 complete all as specifed and directed by Engr-in-Charge. 12 S&F in replcement of AHU fan belt of package AC plant all as specifed and directed by Engr-in-Charge. 13 Taking down old unserviceable outdoor condenser coil from existing unit and Supply and fix new outdoor condenser coil of sameModel suitable for the AC plant5 TR to 10 TR complete all as specified and as directed. 14 Taking down old unserviceable outdoor condenser coil from existing unit and Supply and fix new outdoor condenser coil of sameModel suitable for the AC plant12 TR to 16.5 TR complete all as specified and as directed. 15 Supply and fix in repair condenser fan motor unit of outdoor of AC plant 1 x 12 to 13 TR capacity atcomplete all as specified and as directed. 16 Supply and fix in repair condenser fan motor unit of outdoor unit of AC plant 1 x 8.5 TR capacity atblock complete all as specified and as directed. 17 Supply and fix in repair condenser fan motor unit of outdoor unit of AC plant 1 x 5TR capacity atcomplete all as specified and as directed. 18 Supply and fix in repair condenser fan motor unit of outdoor unit of AC plant 3 x 16.5 TR capacity at transmitter complete all as specified and as directed. 19 Supply and fix in repair condenser fan motor unit of outdoor unit of AC plant 1 x 15 TR capacity at of existing make/ brand of defective components or any reputed suitable make as approved by the Engineer-in-Charge. 20 Supply and fix in replacement of condenser unit of outdoor unit of AC plant 1 x 12 TR to 16.5 TR capacity at of existing make/ brand of defective components or any reputed suitable make as approved by the Engineer-in-Charge. 21 Supply and fix in replacement of condenser unit of outdoor unit of AC plant 1 x 5 TR to 8.5 TR capacity at of existing make/ brand of defective components or any reputed suitable make as approved by the Engineer-in-Charge. 22 S&F in replacement of indoor blower motorcapacity of 5 to 8.5 TR all as specifed and directed by Engr-in-Charge. 23 S&F in replacement of indoor blower motor capacity of 10 to 15 TR all as specifed and directed by Engr-in-Charge. 24 S&F in replacement of AHU pre filter 610x610x50 mm all as specified and as directed. 25 S&F in replacement of AHU pre filter 305x610x50 mm all as specified and as directed. 26 S&F in replacement of prefilter set for package type AC plant all as specified and as directed. 27 S&F in replacement of stainer 50 mm dia complete all as specified and as directed. 28 Supply only Refrigerantgas R – 407 C as and when requiredfor AC plantsof various capacity following capacity complete all as specified and as directed:- 29 Supply only Refrigerantgas R – 410as and when requiredfor AC plantsof various capacity following capacity complete all as specified and as directed:- 30 S&F in replacement of LP/HP coutout for all capacity package type AC plant all as specifed and direced by Engr-In-Charge. 31 S&F in replacement of expansion valve for all capacity package type AC plant all as specifed and direced by Engr-In-Charge. 32 S&F in replacement of Oil filter for package AC plant alla s specifed and directed by Engr-in-Charge. 33 S&F in replacement of discharge copper tube size of 5/8 for package AC plant all as specified and directed by Engr-in-Charge 34 S&F in replacement of discharge copper tube size of 3/8 for package AC plant all as specified and directed by Engr-in-Charge 35 S&F in replacement of discharge copper tube size of 1 for package AC plant all as specified and directed by Engr-in-Charge 36 S&F in replacement of discharge copper tube size of 1/4 for package AC plant all as specified and directed by Engr-in-Charge 37 S&F in replacement of discharge copper tube size of 1/2 for package AC plant all as specified and directed by Engr-in-Charge 38 S&F in replacement of Dryer for package AC plant all as specified and directed by Engr-in-Charge 39 S&F in replacement of Display microprocessor PCB board of chiller unit suitable for 12 to 15TR AC plant complete all as specified and as directed. 40 S&F in replacement of Display microprocessorPCB board of chiller unit suitable for 5 to 10 TR AC plant complete all as specified and as directed. 41 S&F in replacement of CPM board of all typr package AC plant up to 16.5 TR capacity all as specified and as directed. 42 M&L for taking down of old unsv of VFD from existing location of 16.5 TR AC plant and bring it to service center for repair and servicing than refixing in same location with all electrical connections all as specifed and directed by Engr-in-Charge. 43 S&F in replacement of MCB 3 pole 16 Amps suitablr for fan condensor complete all as specifed and directed by Engr-In-Charge. 44 S&F in replacement of MCCB 4/3 pole , 250 Amps AC supply , 50 Hz complete all as specifed and directed by Engr-In-Charge. 45 S&F in replacement of MCCB 4/3 pole ,150 Amps AC supply , 50 Hz complete all as specifed and directed by Engr-In-Charge. 46 M & L for dismantling burnt out three phase, 50 C/S capacity 10 HP motor for rewindingwith same guage, weight and same number of turns of super annealed copper wire including paper/tape of approved quality and varnishingwith Class I varnishing compound including heating and re-assembling the motor, testing and commissioning after repair includingreplacement of worn out bearing complete allas specified. 47 All as per item No 46abovebut motor capacity7.5 HP. 48 All as per item No 46 abovebut motor capacity5 HP. 49 All as per Item No 46 above but induction motor capacity 3 to 5 HP 50 M & L for dismantling burnt out single/three phase, capacity 2 to 5 HP chiller water pump for rewindingwith same guage, weight and same number of turns of super annealed copper wire including paper/tape of approved quality and varnishingwith Class I varnishing compound including heating and re-assembling the motor, testing and commissioning after repair includingreplacement of worn out bearing, soft coupling and other spare parts complete allas specified. 51 All as above item No 50but condensor motor capacity 2 to 5 HP at EW block 52 All as above item No 50 but AHU motor capacity 2 to 5 HP at EW block 53 Taking down old unserviceable scroll type compressor of capacity 5.5 TR to 10 TR including supply and replacement of same capacity of compressor of Make Emerson Climate Technologies or equivalent make for AC plant . 54 Taking down old unserviceable scroll type compressor of capacity 12 TR to 15 TR including supply and replacement of same capacity of compressor of Make Emerson Climate Technologies or equivalent make for AC plant . 55 M&L for taking down unsv PCB control panel of any type and size of AC plants and bring it to service center for repair than tesiting and refixing in same position up to staifaction level working condition all as specified and directed by Engr-In-Charge. 56 M & L for leak testing of AHU unit cooling coil after pumping down the complete system, isolating the cooling coil from both ends and charging the dry nitrogen gas for pressure leak test, after detecting leak point, release the nitrogen gas, repairing the leak point but means of soldering/brazing and connecting the cooling coil with system, vaccumised the complete system and re-charge the system by refrigerent, testing and commissioning up to satisfactory cooling performance of upto 16.5TR capacity all as specified and directed by Engr-in-Charge.Note: (i) Refrigerent gas shall be mesaured and paid separately as supply only. (ii) Nitrogen gas required deemed to be inclusive in the quoted rate. 57 Attending compliants of central/package AC of any capacity, rectification of minor deffects and complaints replacement of spare parts and brings to normal working condition all as per directed and specified by Engr-in-charge.Note :- Major spare parts measured and paid separately 58 M&L Providing insulation on and around suction and discharge copper tube of size 3/8/ 5/8 with 6mm thick flexible thermocol heat resistance duly wrapped with sticking tape and finally covered with flexible PVC conduit of 50mm bore complete including taking down existing damaged one all as specified and as directed. 59 Dismantling existing damaged ducts and Supply, assembly and erection of 24 gauge GI sheet with C & SS rectangular/square duct made out of L shaped hollow profile, duly factory boxed, incl all accessories such as Corner, Cleat, Carriage bolt, hanging rod, Gasket and appropriate sealant on longitudinal joints etc complete all as specified and as directed. 60 Periodical maintenance ofAir cooled package type air conditioning plant of capacity 2x5TR to 2x8.5 TR three plant with scroll compressor micro-processor control refrigeration pipe line air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely, air cooled condenser safety control and electrical panel with control meter etc servicing/clening of all filters/condensing unit by using high water pressure pump and other eqpt including total plant equipments, servicing of all control panel by checking of wiring connections including replacement of minor parts all as directedNote:- Room temperature to be maintained 22 + 3 ⁰C and RH 55% + 5% in all seasonsLocations :- LOX, T-51. signal section 61 Periodical maintenance of Air cooled package type air conditioning plant of capacity 4x12TR (one) , 3x12TR (one), 2x TR (two) three plant with scroll compressor micro-processor control refrigeration pipe line air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely, air cooled condenser safety control and electrical panel with control meter etc servicing/clening of all filters/condensing unit byusing high water pressure pump and other eqpt including total plant equipments, servicing of all control panel by checking of wiring connections including replacement of minor parts all as directedNote:- Room temperature to be maintained 22 + 3 ⁰C and RH 55% + 5% in all seasonsLocations :- IFCS, SES, AVRO, OPERA -II 62 Periodical maintenance of Air cooled package type air conditioning plant of capacity 2x15TR ,SIX plantwith scroll compressor micro-processor control refrigeration pipe line air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely, air cooled condenser safety control and electrical panel with control meter etc servicing/clening of all filters/condensing unit byusing high water pressure pump and other eqpt including total plant equipments, servicing of all control panel by checking of wiring connections including replacement of minor parts all as directedNote:- Room temperature to be maintained 22 + 3 ⁰C and RH 55% + 5% in all seasonsLocations :- SEW, OTF, CRRW, Clean room-02 NOs, TRCL 63 Periodical maintenance of Air cooled package type air conditioning plant of capacity 2x16.5TR one plant with scroll compressor micro-processor control refrigeration pipe line,air blower and cleaning the cooling coil with cleaning the solution, cleaning the AHU base tray completely , air cooled condenser safety control and electrical panel with control meter etc servicing/clening of all filters/condensing unit byusing high water pressure pump and other eqpt including total plant equipments, servicing of all control panel by checking of wiring connections including replacement of minor parts all as directedNote:- Room temperature to be maintained 22 + 3 ⁰C and RH 55% + 5% in all seasonsLocations :- transmitter 64 M&L in repairsduct insulation with resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier, thickness of insulation suitable for 40 mmas specified and including the following:- (a)Cleaning the duct surface (to be insulated) by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage.(c) Sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof.(d) Securing the insulation with and including mechanically fastened nylon/ steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr. 65 S&F in replacementof grills/diffusers of existing type and size for supply air duct made out of CRCA sheet 1.2mm thick, with perforation duly powder coated etc adjustable type(with flow regulating arrangement) all as directed.Make : Microflow ,3C Air Equipments, Deepak cooling control. 66 Supply and fix in replacement of Galvanised steel, volume control damper/parallel Blade Dampers for rough air system balance with closer control at the individual grills or diffusers for supply air complete all as specified and as directed. Make : Microflow, 3C Air Equipments, Deepak cooling control. 67 Taking down unserviceable MCCB, supply and fixing MCCB 63 Amps 16 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.Make : L&T, ABB, Schneider 68 Taking down unserviceable MCCB, supply and fixing MCCB 100 Amps 25 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.Make : L&T, ABB, Schneider 69 Taking down unserviceable MCCB, supply and fixing MCCB 125 amps 25 KA 4 pole 415Volts including connection using suitable size of aluminium lugs complete all as specified and as directed.Make : L&T, ABB, Schneider 70 Supply and fixing in replacement of outdoor fan suitable for Package AC plant capacity cooling tower with proper nut bolt and fixing all as specified and directed by Engr-In-Charge. 71 M&L forpackage type AC Plant (capacity from 5 TR to 16 TR) inspection and fault rectification carried out by Manufacturer Engineer for releasing out lockingsetting the programming for proper functioning of AC plantand to rectifyother minor/majorproblems, including Re-programming& rectifyfaults occured as and when, with all necessary tools and machines and other major problem & faults (faults either software problem or hard ware) including providing new software if software not working properly with all necessary tools and machines. Note :- i)Transportation & loading charge with hiring of machines and equipments are deemed to be included in quoted rates ii) the rate does not includes material cost,material mesured & piad separately under relavent items) iii).The service Engineer shall be from OEM only.
