Replacement of Air cooled Chillers of Capacity 2 X 80 TR Air Conditioning Units at EMC Lab at VRDE, Ahmednagar

Amount

Air Conditioning System

Air Cooled Scroll Chiller :- Design Supply, Testing and Commissing of the 80 TR net capacity at actual conditions for R-407C, Air cooled scroll chiller including its drive motors, condensor, condensors fans, expansion device, micro processor control, necessary operational and safety devices, with necessary spring vibration isolators, etc at the following conditions Ambient temperature 108º F /75º F WBT, chilled water inlet temp is 52.8º F and oulet temp is 42.8º F. Fouling Factor -0.0005 ft²/h/ºF/BTU for Chiller as per specification.

Chilled Water Primary Pumps :- Design,Supply Installation, Testing and Commissioning of Centrifugal End Suction Long Coupled Top Discharge Chilled Water Primary Pumps with high efficency (EPF#1) electric drive (30 HP) motor as per technical specification (impellers and wearing rings made of bronze , priming funnel and air purging provision with valves and with necessary grouting, foundation bolts , etc) including customs clearance and transportaion to site inertia base Foundation For pumps shall be carried out by hvac contractor untill or unless stipulated else where othrwise. All pumps shall be mounted with necessary vibration isolators. Each Pump capacity shall be 265 USGPM @ 25 mtr. head as per specification and approved drawings Qty :- 1 Set's (2W+ 1S). ( Motor = 30 HP , Pump = 265 USGPM 25 mtr Head)

Chilled Water Coil :- Supply, Installation, Testing & Commissioning of 6 ROW deep chilled water cooling coil made out of copper tube and aluminium fins including removing of the existing DX coil and fixing of new coil suitable for 30000 CFM.

Chilled Water Piping with Valves and Accessories :- Supply, Installation, Testing and Commissioning of MS 'C' Class as per IS -1239 chilled water pipe with fittings, flanges, valves, reducers, sockets for probe meter, support hangers with vibration isolation hanger including PUR/PIR inserted self closing insulated single piece pipe support including painting etc. with insulation of 44mm thick for exposed piping with closed cell elastrometric nitrile rubber of density 43 kg/m³, thermal coductvity not exceeding 0.035 W/MºK Class -1, fire performance to pass class 1 as per BS 476 Part -6 & Class -O as per BS 476 part -7 and use recommanded adhesive/SR fevicol 505 grade and insulation coverd with 7 mil thick chemically treated woven glass cloth having density 205 + 10g /sqm and affixed using synthetic contact adhesive of approved make and protective coating of starbond 30-36 finished with 24g aluminnium cladding for outdoor as per the specifications and approved drawings.

(a) 150 mm Dia

(b) 125 mm Dia

(c) 100 mm Dia

Supply, Installation, Testing and Commissioning of balancing valve (Manual) with matching flanges, bolt, nuts, insulation and suitable for working pressure of PN 16. The insulation covered with treated woven glass fibre reinforced covering & finshed with (24G Aluminum clading for Exposed) all etc., complete as per specifications and approved drawings of size 100 mm dia.

Supply, Installation, Testing and Commissioning of Butterfly / Isolation valves with matching flanges, bolt, nuts, insulation and sutitable for working pressure of PN16. The insulation covered with treated woven glass fiber reinforced covering & finished with 24G Aluminium cladding all etc., complete as per specifications and approved drawings of size 100 mm Dia.

Supply, Installation, Testing and commissioning of 3 - Way Motorised Control valve with matching flanges, necessary digital thermostat and control wiring as per specification and approved drawings of size 100 mm Dia.

Supply, Installation, Testing and Commissioning of Y-Strainers consisting of magnetic screen, bolt, nuts, insulation and suitable for working pressure of PN16. The insulation covered with treated woven glass fiber reinforced covering & finished with 24G Aluminium cladding, all etc., complete as per specifictions and approved drawings. (All the supports should be hot dip galvanised) of size 100 mm Dia.

Supply, Installation, Testing and Commissioning of Non- return valves with matching flanges, bolt, nuts, insulation and suitable for working pressure of PN16. The insulation covered with treated woven glass fiber reinforced covering & finished with 24G Aluminium cladding, all etc., complete as per specifications and approved drawings of size 100 mm Dia.

Supply, Installation, Testing & Commissioning of follwing accessories:-

(a) 6 inch dia Dial-Type thermometers with thermowell and mounting box as per the specifications and approved drawings.

(b) 6 inch dia Dial-Type Pressure gauge with insolating gate valve/cock with insulation for Chillers, Pumps & AHU's as per the specifications and approved drawings.

(c) Water Flow Switch for Chiller as per the specification and approved drawings.

(d) Gate valve for drain with insulation as per the the specification and approved drawings 25 mm Dia

(e) Double float Automatic Air Vents as per the specification and approved drawings. 25mm Dia

Drain Pipe :- Supply, installation, Testing and Commissioning pf CPVC (Chlorinated Poly Vinyl Chloride) pipes condensate drain piping insulated using 9mm thick nitrile rubber tubes includung fitting and supports as per the specification and approve drawings of size 25 mm Dia.

GI Ducting :- Supply and installation of 22G, GI Ducting with Nitrile insulation 19mm and cladding with fabrication work as per site requirement includung fitting and supports as per the specification and approve drawings including dismantling of old ducting.

Schedule of Credit

Credit for existing unserviceable 80 TR Chiller complete. (Qty. 02 Nos)

Credit for existing unserviceable GI Ducting including old fitings. (110 Sqm)

Schedule of Credit from BOQ Sr. No.2 to 11 (LS)

CLYMATE CONTROL (BID ID -3102307)

Maharashtra Enterprises (BID ID -3102503)

CHARAN ELECTRICALS (BID ID -3102280)