SPECIAL REPAIRS FOR REPLACEMENT OF BER AC PLANT AND COOLING APPLIANCES AT INS SHIVAJI, STATION LONAVLA

Dismantling and taking down old central AC plants of various type comprising demolition of foundation,compressors-03 Nos, Chillers - 03 Nos, condenser pumps -03 Nos,Chilled water pump - 03 Nos, cooling tower - 03 Nos, AHU- 03 Nos, with control switches, condenser ,chiller water pipe lines,all connected items etc. should be deposited to MES store all as directed by Engineer-in-charge.

Supply, Installation, Testing & Commissioning of Water Cooled Inverter VFD Hermatic Scroll Compressor Chiller unit (2 working + 1 standby) minimum 38 TR Capacity including PCC foundation, each having minimum capacity 38 TR with scroll compressor energy efficient and eco friendly R-134 A / R-404 / R-407 / R 410 refrigerant ,condenser with microprocessor control . The Unit shall have compressor mounting arrangement on rubber Grommets with metal sleeves, Water cooled shell & tube type condenser , evaporator duly insulated, Thermostatic expansion valve . Unit shall have filter dryer, pressure switch i.e. HP/LP, Electronic Thermostat Flow switch at chiller, Integral Refrigerant Piping & wiring, Accessories as required and called for, automatic and safety control mounted in central console Electronic microprocessor with soft starter panel central overloaded protector including comprising of following accessories/ facilities:

Sl No. 2 continued:- (A) Mode: (i) Auto/Manual (ii) Single Phasing Protection. (iii) Compressor Restart Protection. (iv) 10- Sec Time Delay between System. (v) Short Circuit Protection 5°C - Anti Freeze Protection. (vi) Display on Micro control indicating . (vi) Display on Micro control indicating compressor on, (vii) Crankcase Heater ON/Off, Entering/Leaving water Temp (B) Refrigerant: (i) R-134A or any other non CFC/non HCFC gas. (ii) Actual capacity as per Ambient condition. (C) Chiller (i) Chilled water Inlet Temp. 12˚ C. (ii) Chilled water outlet Temp. 7˚ C

Sl No. 2 continued:- (D) Condenser (i) Condenser water Inlet Temp. 30˚C (ii) Condenser water outlet Temp. 34˚ C. (iIi) Flow Rate 7.59 L/s. (iv) Fouling Factor 0.0440 M2.K/KW. (v) water cooled VFD driven chiller should have Max IPLV (Kw/TR) =0.49 Kw/TR (vi) The Entire plant shall have Max IPLV (Kw/TR) = 0.60 Kw/TR. Note:- (i) Plant offered by the tenderer must confirm to meet the desired condition 23+/-2 0C,RH 55+/- 5 %. (ii) The water flow rate are appropriate & minor variation as per OEM design of the chiller is acceptable while meeting other criterias. (iii) Inlet & Outlet temperature conditions for the condenser water are appropriate & minor variation as per the deisgn of equipment by OEM is allowed. (iv) The system integration shall be done & achieve the deisgn condition as mentioned above. (v) The contractor shall submit heat load and drawing vetted by OEM and approved by accepting officer with duly supported specification of all components of AC plant. (vi) AC plant shall be commissioned by OEM. (vii) Bidder to be quote the cost of one chiller unit.

Supply and Fix FRP Induced draft rectangular counter flow type Cooling Tower (2 W,1S) with FRP basin of capacity 46 TR minimum with squirrel cage, vertical flange mounted extended thread shaft type, induction motor with totally enclosed weather proof enclosure, connecting the inlet & outlet existing pipelines including PVC Fins,Eliminator, FRP Fan Deck, Hardware etc as specified in OEM manual & as directed by Engineer-in-charge. Note : Bidder to be quote the cost of one cooling tower.

Supply and install of Nonchemical type on-line scale preventor on line electrostatic non chemical water treatment system with electrically operated control panel to be fixed on main header suittable for AC Plant 76 TR. The outer casing shall be of 304 grade stainless steel with both ends flanged and capable preventing scale formation. The same shall be suitable for water flow rate complete all as specified and as directed.

Supply and Fix chilled water mono block pump set of capcity 6.5 lps (2 W,1S) ,head 24 to 30 m having C.I body,SS shaft & bronze impeller suitable for three phase 50 Cycle, 433V, AC supply complete all as specified and directed by Engineer-in-charge. Note : Bidder to be quote the cost of one pump set.

Supply and fix condenser water mono block pump set of capcity 10.4 lps (2 W,1S) ,head 14 to 24 m having C.I body,SS shaft & bronze impeller suitable for three phase 50 Cycle, 433V, AC supply complete all as specified and directed by Engineer-in-charge . Note : Bidder to be quote the cost of one pump set

Supply, installation and testing of Class O Acoustic Insulation of ducts using open cell processed nitrile rubber having a density of 140-180 Kg/m3 and thickness of 32 mm with Microban Certified anti-microbial protection complete all as specified .

Supply, installation & testing of insulation of ducts using open cell processed nitrile rubber having thickness of 25 mm complete all as specified and as directed.