Repair/Maintenance Of Central Air Conditioning Plants Switch Gear And Connected Items At Tech Area At Af Stn Digaru

Tender Notice

23365722
Repair/Maintenance Of Central Air Conditioning Plants Switch Gear And Connected Items At Tech Area At Af Stn Digaru
Indian
Assam
23-01-2020
12-02-2020
14-02-2020

Tender Details

Repair/Maintenance Of Central Air Conditioning Plants Switch Gear And Connected Items At Tech Area At Af Stn Digaru

Key Value

Document Fees
INR 500 /-
EMD
INR 19000.00 /-
Tender Value
INR 9.50 Lakhs /-

BOQ Items

Name of Work: NAME OF WORK : REPAIR/MAINT OF CENTRAL AIR CONDITIONING PLANTS, SWITCH GEAR AND CONNECTED ITEMS AT TECH AREA AT AF STN DIGARU
Sl. No. Item Description Item Code / Make Quantity Units
1 0 SCHEDULE 'A' PART-I (B/R PORTION)
2 1 Taking up/out CI/DI/GI water mains including all fittings with spigot and socketed ends or flanged ends including burning out lead joints or dismantling flanged joints of 80mm dia pipe complete all as specified and directed.\n 18 RM
3 2 Taking up/out CI/DI/GI water mains including all fittings with spigot and socketed ends or flanged ends including burning out lead joints or dismantling flanged joints of 50mm dia pipe complete all as specified and directed. 72 RM
4 3 Supply and laying Galvanized steel water tubing, medium grade, 80mm bore, screwed and socketed joints with and including all required fittings and fixed to wall, ceiling or laid in trenches/ floor complete all as specified and directed. 18 RM
5 4 Supply and laying Galvanized steel water tubing, medium grade, of 50mm bore, screwed and socketed joints with and including all required fittings and fixed to wall, ceilings or laid in trenches/floor complete all as specified and directed. 72 RM
6 5 M & L for servicing of LT distribution panels of AC plant complete cleaning of panel incluiding CTs and bus bar chamber, welding of hinges, replacement of internal wiring with copper wire (as per existing size) , replacement of thimble as per existing size / type, painting with two coats of epoxy based paint over a coat of red oxide primer complete all as directed by Engr-in-charge. \nNote : - Major spare parts shall be measured and paid separately under relevant Item No 6 to 21 here in after and cost of all miscellaneous material and minor parts shall be deemed to be included in the quoted rate. 2 Each Job
7 6 Supply only contactor type CLOO 10E. 3 Each
8 7 Supply only Contactor type CLO1 10E. 2 Each
9 8 Supply only Contactor type CLO2 10E. 2 Each
10 9 Supply only Contactor type RL4R 22E. 2 Each
11 10 Supply only Electronic timer type ET-100, 110/240 volt 50 Hz. 1 Each
12 11 Supply only ampere meter 0-200 Amp digital type. 2 Each
13 12 Supply only Volt meter 0-500 V digital type. 1 Each
14 13 Supply only Selector switch 4 way for volt meter. 2 Each
15 14 Supply only Selector switch 4 way for Amp meter. 2 Each
16 15 Supply only Overload relay 6 to 10 Amps 3 Pole. 3 Each
17 16 Supply only Overload relay 9 to 14 Amps 3 Pole. 2 Each
18 17 Supply only Overload relay 28 to 42 Amps 3 Pole. 3 Each
19 18 Supply only Timer GT-200 complete with coil voltage 220. 1 Each
20 19 Supply only Auxiliary contact for BCH contactor 25 Amp. 2 Each
21 20 Supply only bolted (BS) type HRC Fuse links of ratting 5 Amps. 2 Each
22 21 Supply only MCB 40 amps 10 KA-3 pole, TP 415V AC. 2 Each
23 22 M & L for repair and servicing of cooling tower of 10 TR capacity AC Plant, dismantling of cooling tower and removing of top cover , PVC Fins, adjustment of fins with proper way, replacement of unserviceable nozzle, fins, rusted nuts, bolts with wahsers etc and clearing bottom tank and remove mud and dust , painting the supporting structure of cooling tower with two coats of synthetic enamel paint and inner side of the tank with bituminous paint complete all as directed by Engineer-in-charge. \nNote: The spare parts, Nozzle shall be measured and paid separately under relevant item No 23 to 25 here in after of this schedule 2 Each Job
24 23 Supply only Float valve assembly 25mm dia 2 Each
25 24 Supply only PVC Nozzels (complete set of each cooling tower). 2 Set
26 25 Supply only fins of cooling tower(complete set for each cooling tower) . 2 Set
27 26 Dismantling compressor of make SMC - 365 series of capacity 10 TR without any damage to the serviceable equipments and over hauling the same by replacing unserviceable / worn out parts with new parts including necessary machine work to the piston housing, crank shaft, discharge valve plate etc for proper repair, Charging of refrigerant gas (R-22) and compressor oil up to the required level to achieve the desired cooling and rectifying other defects, testing & commissioning complete all as specified and directed. Make AXCEL 10 TR \nNote: The spare parts, refrigerant gas & compressor oil shall be measured and paid separately under relevant item No 27 to 46 here in after of this schedule.) 3 Each Job
28 27 Supply only Piston and piston pin along with bush complete. 4 Set
29 28 Supply only Piston ring set (set of compression ring and oil ring complete) 4 Set
30 29 Supply only Connecting rod assembly with nuts and bolts complete 3 Set
31 30 Supply only discharge reed valve complete 4 Each Job
32 31 Supply only suction reed valve complete 4 Each Job
33 32 Supply only Cylinder liner assembly complete 3 Each
34 33 Supply only Helical spring for discharge reeds complete 4 Each
35 34 Supply only Main bearing complete 3 Set
36 35 Supply only Half suction bearing of over size or under size as per site requirement 3 Each
37 36 Supply only Gasket set suitable for SMC - 365 1 Set
38 37 Supply only set of dowting ring suitable for SMC - 365 2 Set
39 38 Supply only Set of Neoprene, 'O' rings suitable for SMC - 365 2 Set
40 39 Supply only set of Shaft seal assembly complete suitable for SMC 365 series 2 Set
41 40 Supply only carbon seal for shaft for SMC - 365 series 4 Set
42 41 Supply only Rocker assembly with pin, spring and cup suitable for SMC - 365 series 3 Set
43 42 Supply only oil pump assembly complete suitable for SMC 365 Series 2 Each
44 43 Supply only Suction stop valve assembly suitable for SMC - 365 series 10 TR capacity plant 2 Each
45 44 Supply only Discharge stop valve assembly suitable for SMC - 365 series 10 TR capacity plant 2 Each
46 45 Supply only Control / Mixing valve assembly suitable for SMC - 365 series 10 TR capacity plant 2 Each
47 46 Supply only compressor oil (N-68) for Model No. SMC 365 compressors 20 Ltrs
48 47 Supply & fix hand shut off valve 1/4" size 1 Each
49 48 Supply & fix solinoied valve 1/4" size 1 Each
50 49 Supply & fix Differential Pressure switch MP - 15 1 Each
51 50 Supply & fix discharge pressure gauge suitable for R-22 refrigerant gas 1 Each
52 51 Supply & fix oil pressure gauge 1 Each
53 52 Supply & fix V-belt B-80 complete all as specified 12 Each
54 53 Supply & fix V-belt B-44 complete all as specified 4 Each
55 54 Taking down Electric induction motor of 15 HP(Make:Crompton) squirrel cage type 3 phase 415 volt with drive pully from the base, dismantling the motor, removing all brunt wires from the slots, cleaning the slots, rewinding the motor with sutable gauge super enameled copper wire, heating, varnishing with proper grade varnish, refixing of bearings with proper alignment of shaft, re-assembling properly and testing complete and re-fixing in position complete all as specified and as directed. 1 Each Job
56 55 All as per item No 54 here-in-before but 5.0 HP capacity. 1 Each Job
57 56 All as per item No 54 here-in-before but 3.0 HP capacity. 1 Each Job
58 57 All as per item No 54 here-in-before but 1.0 HP capacity. 1 Each Job
59 58 M & L for descaling of condenser with suitable descaling agent (HCL) and finally opening out condenser pipe line ends and cleaning the copper tube with wire brush until the tube shown its copper colour complete all as specified. 6 Each Job
60 59 Opening the upper sheet and side sheet of AHU’s of AC plants for access to cooling coil, washing/cleaning of cooling coil externally with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and re-fixing, complete all as directed. 2 Job
61 60 M&L for checking leakage in both low and high side of the system by feeding dry nitrogen to maintain adequate pressure in the system, plugging the leaks including supply and replacement of Teflon sealing of all refrigerant line valves like liquid lines valves/suction/discharge valves of compressors, gland packages of all angle valves flaring of all connections, framing welding etc complete for the AC plant of capacity 3x10 TR-Plant at shed No 58 & 59. 2 Job
62 61 M&L for Spray painting of AC plant complete with two coats of approved colour on various equipments of the plant such as compressors, motor, condenser, pumps, condenser piping, (wherever applicable), MS mounting structure, etc at 58 & 59 shed complete all as directed. . 2 Job
63 62 M & L for Vacuum the system and after maintaining vacuum for 24 hours supply and charge refrigerant gas HCFC 22 complete all as specified and directed by the Engineer-in-Charge. Make:-Mafron/Refron 80 Kg
64 63 M & L for repair / Overhauling of mono block pumping set of 3 to 5 HP including replacement of gland, remetaling, turning & polishing of pump shaft, testing, commissioning and installation at site complete all as directed. (Note: Spare parts of pump shall be measured and paid separetely under relevant item No 64 to 67 here in after of this schedule.) 2 Each Job
65 64 Supply only Pump bushing 3 Each
66 65 Supply only pump motor bearing 2 Each
67 66 Supply only shaft sleeves 2 Each
68 67 Supply only mechanical seal 4 Each
69 68 M & L for replacement of AHU blower fan, bearing housing and pulley assembly complete all as directed. 1 Each
70 69 M & L for replacement of cooling tower fan, bearing housing and pully assembly and servicing complete all as directed. 1 Each
71 70 M & L for replacement coil type heater 2 KW 240 volt, 50 Hz as per sample complete all as directed. 9 Each
72 71 M&L for rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) of capacity 1000 liters, hoisted and fixed in position all as specified in SSR Part-I including Taking down old unserviceable PVC tank of cap 1000 ltr after disconnecting all water connection all as specified and directed. 1 Each
73 72 Supply and replacement of AHU Pre fillter Existing make and size complete all as directed. 5 Each
74 73 Sullpy and replacement of Micro fillter existing make and size complete all as directed. 5 Each
75 74 Supply and fix in repair MCB TP 6-32 Amps 415 Volt , C curve, complete all as directed and specified. 8 Each
76 75 Supply and fix in repair MCB TPN 63 Amps 415 Volt, C curve, complete all as directed and specified. 4 Each
77 76 Supply, connection & testing of PVC insulated, multistranded 4 core, 4 Sq mm copper conductor suitable for working voltage 1100 volts , complete all as specified and directed by Engr-in-Charge. 20 RM
78 77 Supply, connection & testing of PVC insulated, multistranded 4 core, 6 Sq mm copper conductor suitable for working voltage 1100 volts , complete all as specified and directed by Engr-in-Charge. 20 RM
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