Up-gradation/ renovation of furnace lab for creating museum facility at NPL campus - S.I.T.C. of VRV AC plant at NPL campus (AC work)

Amount

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 14 HP modules, microprocessor based Controller, top discharge type condensing unit(s), with R 410 A 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%, 3 Phase, 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. (Make should be Dakin/Voltas/ Carrier/ LG or equivalent) 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 pipe.

Supply, installation, testing and commissioning of following minimum capacity VRV/VRF High wall type Indoor unit equipped with washable synthetic 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, cord less remote control, drain pan, necessary accessories etc., suitable for operation on 230 V ± 10%, 50 Hz, single phase 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. (Make should be Dakin/Voltas/ Carrier/ LG or equivalent)

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft/hard drawn copper refrigerant piping 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 :

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

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

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

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

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

Supply and fixing of casing & capping 3"(75mm x 75mm), complete in all respect directed by engineer incharge.

Supply and laying 4 core 2.5 sqmm FRLS PVC insulated copper conductor (flexible) control cable in existing PVC pipe or surface by clipping etc as required (Cables should be multistrand, ISI marked, Havells/Fenolex/ KEI/Polycab/ make)

RefAir Technical Services