Design, Supply, Installation, Testing and Commissioning (DSITC) of 17000 CFM Air Handling Unit (AHU) at (by replacement of the existing AHU), at RBI, Bhopal

Supply of double skinned type, floor mounted (PUF panel thickness of 25mm+/- 2 mm) Air Handling Unit with a minimum of 17,000 CFM / 42TR air flow capacity confirming with the below specifications: a) Modular AHU panels with GI sheet of 0.60mm thick for both inner and outer casing with CFC free PUF insulation sandwiched in between. The outer panel shall have pre-coating for corrosion resistance as also to provide a very good finish. b) Blower section with DIDW backward curved centrifugal fan with TEFC squirrel cage Induction motor with VFD compatible (IP 55 protected, class F insulation and energy efficient, IE 3 rated) driven with V- belt suitable for 415+/-10% volts, 50Hz, 3 phase AC supply mounted on vibration isolators. c) Drain section with 1.2mm thick SS drain pan d) 50mm thick Al frame HDPE 3 ply air MERV-8 pre- filters (box type) with efficiency of 90 to 95% down to 10 microns and bag filters of MERV-13/EU-7 with efficiency of 99% down to 3 microns along with UVGI system and MERV-13 filters, control /operating panel. These filters to be provided individually. e) Chilled water-cooling coil of 6 row deep with Blue fins (Copper) and copper tubes, Cu headers etc., complete. All complete as directed by the Bank's Engineer

Installation, Testing and Commissioning of the above Air Handling Unit. The work includes new AHU unit to be installed in place of existing AHU by dismantling of the same, removal of water piping, disconnecting, and connecting to the existing AC duct through non-returnable G.I collar damper/VCD and double flexible fire-retardant canvas connection arrangement as per the site requirement and the mounting of the unit on foundation/floor with anti-vibration pads to avoid vibration transmission etc. The unit shall be connected to the electrical starter panel in the AHU room by connecting copper armoured cable supplied under this tender and as per technical specification mentioned in Part-I of tender and to be tested as detailed in the section VI, part I of tender. Testing and Servicing of existing 3-way valve and controller. Testing and servicing of inlet and outlet valves. All complete as directed by the Bank's Engineer.

Chilled water piping Supply, fabrication, installation, testing and commissioning of MS C- class nominal size chilled water piping including providing necessary quantities of flanges, fittings, bends, elbows, gaskets, nut& bolts etc., with insulation of 25 mm thickness Class ‘O’ nitrile rubber with duct seal and all accessories as detailed in section VII, Part I of tender. Size: 80 mm dia

Ball Valves: Providing and fixing in position of 40 mm ball valves with bronze body, SS disc suitable for PN 16 pressure rating duly insulated including required expander / reducer all complete as per site requirement and as per specifications mentioned in Part-I of tender and as directed by Bank’s Engineer

Automatic Air Vents Providing and fixing of auto air vent purging valve of 20mm dia. with isolating valve complete as per specifications.

Supply, installation, testing and commissioning of suitable capacity pressure gauge (SS-304 dial type) for both inlet and outlet with required accessories etc., all complete and as per technical specification mentioned in Part-I of tender and as directed by Bank’s Engineer.

Supply, installation, testing and commissioning of Thermometer with needle valve 6-inch dia. (0-50) degree C for both inlet and outlet with required accessories etc., all complete and as per technical specification mentioned in Part-I of tender and as directed by Bank’s Engineer.

Rectangular GI Ducting and Accessories Supply, fabrication, assembling and fixing of 20 gauge GSS (Galvanised Steel Sheet) duct complete with flanges, nuts, bolts, washers with necessary neoprene rubber gasket, elbow, G.I angle support with suspended rods, as per IS 655 for connecting the AHU to existing main duct inside the AHU room all complete and as per technical specification mentioned in Part-I of tender and as directed by Bank’s Engineer.

Acoustic and Duct Thermal insulation Supply and provision of 25mm thick open cell structured Class “O” nitrile rubber of density 140-180Kgs/cu.mt fixed inside and outside surface of ducts with necessary fixing materials i.e., adhesive etc., and should be duly fastened with G.I nut & bolts, washers etc., covered with aluminium foil all complete and as per technical specification mentioned in Part-I of tender and as directed by Bank’s Engineer.