PERIODICAL MAINTENANCE AND ESSENTIAL REPAIRS TO CENTRAL AC PLANTS AT NAD EXPLOSIVE AND NON EXPLOSIVE AREA AT NAVAL STATION KARANJA

Amount

SCHEDULE 'A' PART-I (PERIODICAL MAINTENANCE) Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type central AC plant of capacity 70 TR installed at RT WKSHP AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% and for DX type central AC plant of capacity 30 TR installed at ATIME AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type chilled water type AC plant of capacity 24 TR installed at AC STORE AC plant for maintaining Temp 22 C + 3 C and humidity 55 + 5% and for DX type Chilled water type AC plant of capacity 104 TR installed at TAL WORKSHP AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 25 TR installed at NAI AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% and for DX type central AC plant of capacity 26 TR installed at ABHIMANYU AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 62TR installed at PCB AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type central AC plant of capacity 70 TR installed at DBM 12/13 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% and for DX type central AC plant of capacity 30 TR installed at DBM 14 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type chilled water type AC plant of capacity 50 TR installed at DBM 17/SBM 3 AC plant for maintaining Temp 22 C + 3 C and humidity 55 + 5% and for DX type Chilled water type AC plant of capacity 46 TR installed at SBM 4 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type central AC plant of capacity 29 TR installed at DBM 11 AC plant for maintaining Temp 74 + 5F and humidity 60 + 5% and for DX type central AC plant of capacity 37 TR installed at DBM 15 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 46 TR installed at HTL-09 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% and for DX type central AC plant of capacity 50 TR installed at LTL-03 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 34 TR installed at DBM 16 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Periodical/ comprehensive maintenance of under mentioned central AC plants comprising the various equipments as mentioned below for a period of 334 days i.e eleven months round the clock in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including carrying out the routine, preventive, weekly, monthly, quarterly, half yearly, yearly maintenance to keep all the plants equipments in serviceable and operational condition through out the period and maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 60TR installed at A244S AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% and for DX type central AC plant of capacity 36 TR installed at Barrack (sea cat) AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces complete all as specified and as directed by Engr-in-charge.

Inspection services: (a) Inspecting the plant/ system and carry out preventive maintenance as per the standard practice four times in a year. (b) Checking the refrigeration system, motor and starters and ensuring healthy condition of the plant. (c) Checking the system for any leaks and rectificationm of leaks if found. (d) Tracking set of reading and reporting the healthiness of the plant and suggesting improvements if any. (e) Checking the refrigeration control system for operation and adjusting the settings. (f) Checking the functioning of compressor and its accssories. (g) Cleaning the evaporator once a year if fiound necessary. (h) Lubricating the bearings of motors, and fans when found necessary. (j) Quarterly inspection of belts adjusting the tension. (k) Checking of the microprocessor controller for its proper functioning. (l) Attending to break calls. (m) Labour involving evecuation of refrigerant during replacement of controls and replacement of compressor. (n) Carrying out-once in a year, testing of lubricant and water (chilled water system and water cooled condensing system only) samples. Notes: The quoted rate for above plants described from item No. 01 to 10 shall be deemed to be included following: (i) To carry out routine, periodical, preventive (weekly, monthly, quarterly, half yearly, yearly) breakdown maintenance as per attached formats and as directed by GE & Engr-in-charge. (ii) To attend the breakdown during day and night including holidays and putting the plant in operational condition with in the shortest period. The contractor shall keep all fast consuming spares in store to be made available by GE /Engr-in-Charge at any one of the above installation. (iii) Maintaining all the accessories such as electric panel. Interlocking wiring cables, pumps etc., and all assemblies such as chillers etc., and sub assemblies such as AHU, tower etc., functional in any situation round the clock for the period including holidays etc.,

SCHEDULE 'A' PART-II (ESSENTIAL REPAIRS) Descaling of condenser by soaking method, disconnecting condenser from the system by taking out nuts, bolts, studs, valves and MS /GI pipe line from both side cover, cleaning each tube with nylon brush, flushing with alkaline solution, connecting back both side cover including replacing rubber gasket 3mm thick for the following capacities of condenser, suitable for AC plant of capacity as indicated below including required quantity of chemical all as per manufacturer's instructions and to the entire satisfaction of Engineer-in-charge complete all as specified and as directed by Engr-in-charge.

Upto 30 TR capacity

30 to 66 TR capacity

66 to 120 TR capacity

Cleaning the cooling tower by applying wire brush, washing powder and other solvent by removing the deposited impurities sush as silt, dust particles mud/ sand inside the dume and around the fins, cleaning of base tray and grills, pot stainer, main shaft etc., and other connected items, servicing of fan motor including changing of bearings and greasing refixing the fan, frill and top cover including testing commissioning after reassembling upto 35 TR complete all as specified and as directed by Engr-in-charge.

All as per item No. 12 here-in-before but for 35 TR to 65 TR.

All as per item No. 12 here-in-before but for 66 TR to 250 TR.

Supply and fix in repairs shaft seal including 10 AG for SMC - 65 compressors complete all as specified and as directed by Engr-in-charge.

Supply and fix in repairs shaft seal for 5 H 40 compressors complete all as specified and as directed by Engr-in-charge.

All as per item No. 16 here-in-before but suitable for SMC - 100 compressors.

Supply and fix for aluminium thimble, cable gland and lux after disconnecting from panel and taking down burnt cable from panel of different location and cutting out the burnt portion of cable and extended the cable from cable loop, preparation of cable including necessary connection and testing complete of size 6 sqmm complete all as specified and as directed by Engr-in-charge. Notes: (i) 01 Job consisting of 04 Nos lugs /thimble at one end of cable. (ii) Rate of necessary earth work for opening of loop if requried at site are deemed to be included in the quoted rate.

All as per item No. 18 here-in-before but size 10 sqmm.

All as per item No. 18 here-in-before but size 16 sqmm.

All as per item No. 18 here-in-before but size 25 sqmm.

All as per item No. 18 here-in-before but size 35 sqmm.

All as per item No. 18 here-in-before but size 50 sqmm.

Supply and fix in repairs of CVT for chiller controller power supply 3 phase, 415 Volts, 50 Hz AC complete all as specified and as directed by Engr-in-charge.

Material and labour for nitrogen leak test entire system of the AC plant of capacity upto 150 TR with nitrogen gas. If found any leakage or reduction in the scale of pressure shall located and arrest the leakage immediately by soldering or an appropriate measure are to be taken to top the leakage permanently complete all as specified and as directed by Engr-in-charge.

Supply and fix in repairs of HMI display for chiller controller power supply 3 phase, 415 Volts, 50 Hz AC complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement V Belt of following sizes complete all as specified and as directed by Engr-in-charge.

V Belt A-62

V Belt A-71

V Belt A-79

V Belt B-56

V Belt B-63

V Belt B-72

V Belt B-84

Supply and fix in repairs of motor and voltage protective device as per existing make and type complete all as specified and as directed by Engr-in-charge.

MVPD EC 5-30 A

MVPD EC 30-220A

MVPD (Split) 360-500V AC

Supply and fix in replacement power contactor 3 pole, type ML-1.5 with 2 NO + 2 NC aux contracts with standard coil voltage 415 volts, rating 25 Amp complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement power contactor 3 pole, type ML-2 with 2 NO + 2 NC aux contracts with standard coil voltage 415 volts, rating 32 Amp complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement power contactor 3 pole, type ML-3 with 2 NO + 2 NC aux contracts with standard coil voltage 415 volts, rating 40 Amp complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement bimetal overload relay type MN-02 of relay range, 4.5 to 7.5 Amp with single phasing protection complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement bimetal overload relay type MN-02 of relay range, 9 to 15 Amp with single phasing protection complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement bimetal overload relay type MN-02 of relay range, 14 to 23 Amp with single phasing protection complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB SP 5 to 32 Amp rating 240V, 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB SPN 32 Amp rating 240V, 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB SPN 40 to 63 Amp rating 240V, 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB TP 40 to 63 Amp 415V 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB TPN 16 to 32 Amp 415V 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB TPN 40 to 100 Amp 415V 10 KA 'C' curve complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement MCCB 3 Pole, 415 V, fixed type, 100 Amps with breaking capacity 16 KA complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement MCCB 3 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement MCCB 4 Pole, 415 V, Adjustable type, 160 Amps with breaking capacity 36 KA complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement MCCB 4 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA complete all as specified and as directed by Engr-in-charge.

Supply and fix in repairs steel water tubing galvanised iron 100mm dia medium grade with all fittings ISI marked complete all as specified and as directed by Engr-in-charge.

All as per item No. 45 here-in-before but 80mm dia.

All as per item No. 45 here-in-before but 50mm dia.

All as per item No. 45 here-in-before but 40mm dia.

All as per item No. 45 here-in-before but 25mm dia.

Supply and fix in repairs of butterfly valve 100mm dia complete all as specified and as directed by Engr-in-charge.

All as per item No. 50 here-in-before but 80mm dia.

All as per item No. 50 here-in-before but 65mm dia.

All as per item No. 50 here-in-before but 50mm dia.

Material and labour for laying, jointing, connecting and testing in repairs PVC insulated and sheathed under ground heavy duty wire or strip armoured 1100 volt grade multistranded aluminium conductor cable in trenches/ cable tray of 3 core 6 sqmm confirming to IS - 1554 complete all as specified and as directed by Engr-in-charge.

All as per item No. 54 here-in-before but 3 core 10 sqmm.

All as per item No. 54 here-in-before but 3 core 16 sqmm.

All as per item No. 54 here-in-before but 3 core 25 sqmm.

All as per item No. 54 here-in-before but 3 core 35 sqmm.

All as per item No. 54 here-in-before but 3 core 50 sqmm.

AIRDOT ENGINEERING

BRITE INDUSTRIES

somnath engineering corporation