Military Engineer Services-MES has published Comprehensive Repair / Maint Of Ac Plant At X And L Area At Af Stn Digaru. Comprehensive Repair / Maint Of Ac Plant At X And L Area At Af Stn Digaru.. Submission Date for this Tender is 25-10-2021. HVAC Tenders in Digaru Assam. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 18-Oct-2021 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 25-10-2021 |
| Sl. No. | Item Description |
| 1 | M & L for servicing of LT distribution panels of AC plant complete cleaning of panel incluiding CTs and bus bar chamber, welding of hinges including replacement of internal wiring with copper wire (as per existing size) including replacement of thimble as per existing size / type with two coats of epoxy based paint over a coat of red oxide primer complete all as sepcified & directed by Engr-in-charge. Note: - Major spare parts shall be measured and paid separately and cost of all miscellaneous material and minor parts shall be deemed to be included in the quoted unit rate. |
| 2 | Supply and fix contactor type CLOO 10E. |
| 3 | All as per item No 2 here-in-before but Contactor type CLO1 10E. |
| 4 | All as per item No 2 here-in-before but Contactor type CLO2 10E. |
| 5 | All as per item No 2 here-in-before but Contactor type RL4R 22E. |
| 6 | S&F Electronic timer type ET-100, 110/240 volt 50 Hz. Make: GE / Havells / Legrand or equivalent as approved by Engineer-in-charge. |
| 7 | S&F ampere meter 0-200 Amp digital type. Make: AE / Crompton Greaves / L&T or equivellent as approved by Engineer-in-charge. |
| 8 | S&F Volt meter 0-500 V digital type. Make- AE/Crompton Greaves/L&T or equivellent as approved by Engineer-in-charge. |
| 9 | S&F Selector switch 4 way. Make - Standard Gold AE / Crompton Greaves/L&T or equivellent as approved by Engineer-in-charge. |
| 10 | S&F Selector switch 4 way Amp meter. Make- Standard Gold AE / Crompton Greaves or equivellent as approved by Engineer-in-charge. |
| 11 | S&F O/L relay 6 to 10 Amps 3 Pole, directly operated. Make- GE / BCH or equivellent as approved by Engineer-in-charge. |
| 12 | S&F O/L relay 9 to 14 Amps 3 Pole directly operated. Make- GE / BCH or equivellent as approved by Engineer-in-charge. |
| 13 | S&FO/L relay 28 to 42 Amps 3 Pole directly operated. Make- GE / BCH or equivellent as approved by Engineer-in-charge. |
| 14 | S&F Timer GT-200 complete with coil voltage 220. Make- GE / L&T or equivellent as approved by Engineer-in-charge. |
| 15 | S&F Auxiliary contact for BCH contactor 25 Amp. Make- BCH or Havells or Legrand or equivellent as approved by Engineer-in-charge. |
| 16 | S&F fuse fitting for bolted (BS) type HRC Fuse links of ratting 5 Amps. Make: Indoasion/ Legrand/Schneider |
| 17 | S&F MCB 40 amps, C curve, 10 KA-3 pole. Make- Legrand / L&T / Siemens / Indo Asian |
| 18 | M & L for repair and servicing of cooling tower of capacity 10 TR capacity AC Plant, dismantling of cooling tower for removing of top cover and PVC Fins, adjustment of fins with proper way, replacement of unserviceable nozzle, fills, replacement of rusted nuts, bolts with wahsers etc and clearing bottom tank to remove mud and dust and painting the supporting structure cooling tower with two coats of synthetic enamel paint and inner side of the tank with bituminous paint complete all as specified and directed by Engineer-in-charge. |
| 19 | Dismantling of compressor of make SMC - 365 series of capacity varying from 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. Note: The replaced parts, refrigerant gas & compressor oil shall be measured and paid separately under relevant items of this schedule. |
| 20 | Supply and replacing the spare part for compressor of Make SMC 365 Series against SL item No. 19 : for Piston and piston pin along with bush complete all as specified and directed. |
| 21 | All as per item No 20 here-in-before but for Piston ring set (set of compression ring and oil ring). |
| 22 | All as per item No 20 here-in-before but for Connecting rod assembly with nuts and bolts. |
| 23 | All as per item No 20 here-in-before but for discharge reed valve complete |
| 24 | All as per item No 20 here-in-before but for suction reed valve. |
| 25 | All as per item No 20 here-in-before but for Cylinder liner assembly. |
| 26 | All as per item No 20 here-in-before but for Helical spring for discharge reeds. |
| 27 | All as per item No 20 here-in-before but for Main bearing. |
| 28 | All as per item No 20 here-in-before but for Half suction bearing of over size or under size as per site requirement & directed by Engr-in Charge. |
| 29 | All as per item No 20 here-in-before but for Gasket set suitable for SMC - 365. |
| 30 | All as per item No 20 here-in-before but for set for dowting ring suitable for SMC - 365. |
| 31 | All as per item No 20 here-in-before but for set for Set of Neoprene, "O" rings suitable for SMC - 365. |
| 32 | All as per item No 20 here-in-before but for set for Shaft seal assembly complete suitable for SMC 365 series. |
| 33 | All as per item No 20 here-in-before but for carbon seal for shaft for SMC - 365 series. |
| 34 | All as per item No 20 here-in-before but for Rocker assembly with pin, spring and cup suitable for SMC - 365 series. |
| 35 | All as per item No 20 here-in-before but for oil pump assembly complete suitable for SMC 365 Series. |
| 36 | All as per item No 20 here-in-before but for Suction stop valve assembly suitable for SMC - 365 series 10 TR capacity plant |
| 37 | All as per item No 20 here-in-before but for Discharge stop valve assembly suitable for SMC - 365 series 10 TR capacity plant. |
| 38 | All as per item No 20 here-in-before but for Control / Mixing valve assembly suitable for SMC - 365 series 10 TR capacity plant. |
| 39 | All as per item No 20 here-in-before but for supply only compressor oil (N-68) for Model No. SMC 365 compressors. |
| 40 | Supply & fixing hand shut up valve 1/4" size. |
| 41 | Supply & fixing solinoied valve 1/4" size. |
| 42 | Supply & fixing Differential Pressure switch MP - 15. |
| 43 | Supply & fixing discharge pressure gauge suitable for R-22 refrigerant gas. |
| 44 | Supply & fixing oil pressure gauge. |
| 45 | Supply & fixing V-belt B-80 complete all as specified and directed. |
| 46 | Supply & fixing V-belt B-44 complete all as specified and directed. |
| 47 | Taking down Electric induction motor squirrel cage type 3 phase 415 volt with drive pully from the base, dismantling the motor, removing all brunt wires from the slottes, cleaning the slottes, rewinding the motor with sutable gauge super anamelled copper wire, heating, varnishing with proper grade varnish, refixing of bearings with proper alignment of shaft, re-assembling properly and complete testing and re-fixing in position for15 HP capacity complete all as specified and directed. Make: Crompton. |
| 48 | All as per item No 47 here-in-before but 5.0 HP capacity. |
| 49 | All as per item No 47 here-in-before but 3.0 HP capacity. |
| 50 | All as per item No 47 here-in-before but 1.0 HP capacity. |
| 51 | M & L for descaling of condenser with suitable descaling agent 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 and directed. |
| 52 | M&L for Opening the upper sheet and side sheet of AHU to 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 the same in existing position complete all as specified and directed. |
| 53 | M&L for checking the 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 S&F 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 following plants: |
| 54 | AC plant of capacity 3x10 TR-Plant. |
| 55 | AC plant of capacity 14.7 TR x4 VRF type. |
| 56 | M&L for Vacuuming 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. |
| 57 | All as per item No 54 here-in-before but for R-410A refrigerant for VRF unit. |
| 58 | M & L for repair / Overhauling of mono block pumping set 3 to 5 HP including replacement of GM gland, remetaling, turning & polishing of pump shaft etc testing, commissioning and installation at site complete all as specified and directed. |
| 59 | S&F strip heater 3 KW 240 volt, 50 Hz as per sample complete all as specified and directed. |
| 60 | S&F in Replacement AHU Pre fillter Existing make and size for 4000 CFM AHU capacity complete all as specified and directed by Engr-in-Charge. |
| 61 | All as per item No 58 here-in-before but for AHU 12000 CFM capacity. |
| 62 | S&F in Replacement of Micron fillter existing make and size for AHU. |
| 63 | S&F in replacement of MCB TP "C" Curve of cap 32 Amp. Make: Indoasion / Legrand / L&T. |
| 64 | S&F in replacement of MCB TP "C" Curve of cap 63 Amp. Make: Indoasion / Legrand / L&T |
| 65 | M&L for monthly servicing of VRF type AC Plant unit comprising of 4 Nos 14.7 TR outdoor unit, refrigerant piping system, throttling device, cooling coil, control unit, AHU complete all as specified, replacing worn out insulation with nitrile pancake sheet, cleaning of outdoor unit with suitable cleaning acid, blowing it dry, checking PCB box for malfunction, tightening connection, resealing glands, including testing for proper working complete all as specified and directed. Make of Outdoor unit: Mitsubishi Electric |
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