Airports Authority Of India Tender

SH - I (SITC of of 2 * 200 TR Screw Type Air cooled chiller) Supply, Installation, testing & commissioning of Screw Type air cooled chilling unit (with VFD / VSD) of 200 TR (minimum actual capacity) with Twin compressor complete in accordance with AHRI / Eurovent with all aspect. The chilled water inlet / outlet temperature of 54 / 44 Deg. F respectively with chilled water circulation rate of 480 USGPM & fouling factor 0.0005 FPS and suitable for operation on refrigerant for screw / centrifugal type machine, BMS integration of chillers to be provided with bacnet / Modbus protocol output at one single point by chiller supplier, Chiller should be ECBC + 2017 compliant. First chiller shall be factory tested as AHRI & Tender Conditions at 100%, 75%, 50% and 25% load. following accessories, items or services shall also be part of chiller. a) 1 Set - hermatic/ semi hermatic Helical Rotary twin Screw / Centrifugal compressors with automatic capacity control, safety switches, speed increasing gears, forced feed lubrication system etc. as per specifications. The unit shall be designed to unload up to 25% at constant condesor entering temperature.

b) 1 No. Suitable capacity squirrel cage induction motor with class "F" insulation suitable for operation on the 415+- 10% volts, 50 HZ , AC supply. c) 1 No. Unit mounted / free standing VFD / VSD starter (IP 42) suitable for compressor motor complete with active harmonic filter displaying THD and to limit THDI upto 5% at equipment level, ammeter with CTs, over load protection, under voltage protection, protection against phase reversal & independent single phase preventers etc. complete as required. Cable termination adaptor box for AI/Cu cables (if reqd).Necessary Drive arrangement d) 1 Set lubrication device consisting of automatic electric oil pump cooler, head tank, oil strainer, automatic pressure regulating valve, oil heater thermal switch , etc. as per manufacturer standards. e) 1 No. matching in accordance with ASME / PED /GB / BIS shell and tube water cooled condenser of M.S. shell and copper tubes. f) 1 No. matching in accordance with ASME / PED / GB / BIS shell and tube flooded type chiller for screw units of MS shell and copper tubes. g) 1 No. lot refrigerant piping fittings including valves as required and accessories to interconnect compressor, condenser, chiller and expansion valve.

h) 1 set - BMS compatible microprocessor based control panel with coloured graphical display complete with accessories as per specification. Card for BMS integration to be provided along with chiller. i)1 Lot - refrigerant line accessories comprising of safety valves, angle valves, liquid rubber insulation complete as required from factory. j)1 Lot- suction line and chiller insulation with minimum 19mm thick elastomeric and motor with base plate complete with ant vibration pads including PCC / RCC foundation as per OEM recommendation. k) 1 LOT - initial / first charge of refrigerant gas and compressor oil duly charged. Chiller plant manager cum optimiser for complete plant including chillers, pump, cooling towers, VFD / VSD etc. IO summary, equipment summary and detailed specifications to be followed. All necessary hardware like supervisory controller, DDC controllers, necessary IO modules, advance graphics and necessary software must be included in CPO for remote monitoring, controlling and report generation. Note:- necessary field device and computer and cable / conduit work shall be scope of BMS package. But final responsibility of chiller plant optimiser shall be of chiller manufactures.