Supplying and installation of 4.0 TR Tower AC at Sever Room, Library Building, IIT Jodhpur.

Supply Installation, Testing & Commissioning of 4.0 TR (nominal capacity) tower (floor standing evaporator) type air cooled (condenser) air conditioning unit suitable for cooling, having all hermetically sealed inverter type Rotary /Scroll Compressor(s), with R-410 Refrigerant, vibration isolators, with suitable foundation etc. complete as required. The unit shall be suitable to work on 230 / 400V+/-10%, 3 / 1 Phase, 50Hz AC power supply. The unit shall be filled with first charge of the refrigerant and ready for use as required. Material of evaporator and condenserunits should be copper complete with condenser and evaporator unit, installation kit, remote with cells, manual complete as required.

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft / hard drawn copper refrigerant piping for tower AC 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 specifiedthickness as given below for Suction and Liquidlines, all accessories as per specifications etc. as required : NOTE: (1) The copper piping and piping circuit should be with minimum number of joints, which shall be attained by: (a) Using one end expanded tubes (b) 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

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

Supplying and installing following size of perforated Hot Dipped Galvanised Iron Cable tray (galvanisation thickness not less than 50 microns) with perforation not more than 17.5% in convenient sections, joined with connectors, suspended / supported from the ceiling / wall with GI suspenders including GI bolts and nuts, GI C-Channels, etc. including GI protective sheet covering outside the room as required. (Only for outdoor portion)

375 mm width x 50 mm depth x 1.6 mm thickness

Supplying and laying of ISI marked CPVC pipe of 32 mm dia for draining of sweated water from AC evaporator (indoor) unit including providing tee, joints, elbows, supports, etc. insulated with XLPE class - O tubular insulation / with Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of 19 mm thick etc. complete as required.

Fabricating, Providing and fixing M.S. iron frame fabricated with M.S. C-channel of size 100 mm x 50 mm x 6 mm (thick) for resting the condenser & indoor unit on the roof / floor of the building duly supported from the bottom as required including painting the framework etc.complete as required.

Supplying and laying of following size FRLS industrial flexible copper conductor cable of 1.1 kV grade conforming to IS694:2010 of following sizes including making connections etc. as required.

4 core x 2.5 sqmm

4 core x 6 sqmm

Supplying and making end termination with brass compression gland and tinned copper lugs for following size of pvc insulated and pvc sheathed / XLPE copper conductor cable of 1.1 kV grade as required.

4 core x 6 sqmm

Supplying and charging of refrigerant (R410) as applicable for AC unit for topping up where pipe lines are lengthy etc. as required.

Dismentalling of 4.0 TR capacity tower AC units along with condensor unit, copper pipe and closing of the gas valve etc. as required