Supply Installation Testing and Commissioning of Airconditioning System for Proposed Computer Lab at Basement Floor of Lecture Hall Complex LHC IISER Campus Thiruvananthapuram

Amount

Outdoor Unit : Supply, Installation, Testing & Commissioning of modular type Variable Refrigerant Flow/Variable Refrigerant Volume air cooled Outdoor units suitable for cooling and heating ,having all hermetically sealed inverter type Scroll Compressor(s), minimum two compressors for above 14HP modules, microprocessor based Controller,top discharge type condensing unit(s), with R410A Refrigerant, vibration isolators, with suitable foundation etc. complete as required. The unit shall deliver the rated capacity at AHRI Conditions and work even at 50°C ambient temperature without tripping.The unit shall be suitable to work on 400V+/-10%, 3Phase, 50Hz AC power supply.The unit shall be filled with first charge of the refrigerant and ready for use as required.The COP at AHRI conditions shall not be less than 3.1 and IEER not less than 6.5. The work shall be carried out in all aspects as required by the Engineer-Incharge & OEM O-General/Daikin/Mitsubishi/Trane/LG Make

Indoor Unit: Supply, Installation, testing and commissioning of following minimum capacity 4-way flow VRV/VRF Cassette Type Indoor ceiling mounted unit equipped with synthetic washable media pre-filter, fan section with low noise fan / dynamically balanced blower, multispeed motor, coil section with DX Copper coil, electronic expansion valve, outer cabinet, drain pump, grill, necessary supports, vibration isolation, cord less remote control etc., suitable for operation on single phase 230 V ± 10 %, 50 Hz AC supply, complete, as required. The unit shall have automatic force shut down provision in case of fire on receiving signal from BMS System. The cooling capacity of indoor unit will be at air inlet conditions of 27 Degree C DB and 19 Degree C WB temperature.The work shall be carried out in all aspects as required by the Engineer-Incharge & OEM O-General/Daikin/Mitsubishi/Trane/LG Make

3 TR or above

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft /hard drawn copper refrigerant piping (18 G) for VRV / VRF system, complete with fittings, with suitable adjustable ring type hanger supports, jointing /brazing including accessories, insulated with XPLE Class-O tubular insulation /with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of specified thickness as given below for Suction and Liquid lines, all accessories as per specifications etc. as required : NOTE:-1) The Copper Piping & Piping Circuit should be with Minimum Number of joints, which shall be attained by : (i) Using One End Expanded Tubes (ii) Bending the tubes instead of using elbow joints wherever 90 degree bending is required.(2) Piping should be routed at site in such a manner, that brazed joints in the refrigeration piping are kept to a minimum.(3) The makes of tube fittings shall be same as that of tubes.(4) The thickness of fittings used shall be same as that of the pipe. Nippon/ Mandev/ Rajco/ Mexflow/Uniflow Make

9.5 mm dia (OD) with tube thickness 1.2 mm with 19 mm thick insulation

12.7 mm dia (OD) with tube thickness 1.2mm with 19mm thick insulation

15.86 mm dia (OD) with tube thickness 1.2 mm with 19mm thick insulation

19 mm dia (OD) with tube thickness 1.2 mm with 19 mm thick insulation

22.2 mm dia (OD) with tube thickness 1.2 mm with 19mm thick insulation

28.6 mm dia (OD) with tube thickness 1.2 mm with 19mm thick insulation

Supply, Installation, Testing and Commissioning of Refnet joints for branching of refrigerant (Sizes As per OEM Design)

Supplying and Installing the following sizes of perforated hot dip galvanized iron cable tray (Galvanization thickness not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, with necessary bends, tees, reducers, cross members etc, suspended from the ceiling with G.I suspenders including G.I bolts & nuts etc. as required DA tech/Intech/OBO betterman make

300 mm width X 75 mm depth X 1.6 mm thickness

200 mm width X 60 mm depth X 1.6 mm thickness

Supply and laying of communication cabling between VRV indoor and outdoor units in surface/recessed medium class PVC conduit, including medium class PVC conduit with all accessories required for complete installation. Cable laying shall be done from outdoor unit to indoor with necessary interconnections as required, 3Cx1.5 sqmm shielded cable. Polycab/Rallison/KEI/Gloster/Finolex/RR Cables Make

Supply and fixing in position of insulated PVC condensate drain water piping insulated with XPLE Class-O tubular insulation /with Class-O closed cell elastometric nitrile rubber with necessary fittings like sockets, elbows, tees and reducers etc. PVC : Supreme/Finolex/Astral Make Nitrile rubber Insulation : A-flex /Armaflex/superflex/K-flex/Supreme make

32 mm with nitrile rubber insulation of thickness 9 mm

40 mm with nitrile rubber insulation of thickness 9 mm

Supply and Installation of pedestal for placing Outdoor Unit

BS Engineering India Pvt Ltd (BID ID -3214630)