Replacement by Provision of ductable split air conditioners to Laboratory at BT 314-315 of Biotechnology Dept in IIT Madras

Amount

Refrigerant piping(Suction & discharge) drawn from hard copper tube of suitable sizes, with copper elbows, tees, necessary hard ware for installation etc. with thermal insulation covering etc as required for above ceiling suspended units.

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required.

Thickness 1.00mm sheet

Supply, installation, testing and commissioning of GI volume control duct damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc, as per specifications.

Supply and fixing of acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having density of 32 kg/m³,with Reinforced Plastic tissue paper and 0.5 mm thick perforated aluminum sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX compound etc. complete as required and as per specifications.

Supplying, Fixing,testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return so as to close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire signal complete as required and as per specifications.

Fire Damper

Actuator

Supply and laying of 40 mm dia PVC drain piping of 4 kg /cm2 rating complete with Insulation(Nit rile Rubber), supports, fittings like elbow, tee joints, screws, clamps etc.

Supply, laying, terminating, testing and commissioning of PVC insulated, PVC sheathed steel armoured copper 1100V grade power\ control cable as required with terminations.

4C X 6 sqmm

6C X 1.5 Sqmm Copper cable for control

End Terminations using Copper Lugs

BUYBACK :- Less buyback of following capacity ductable split AC(indoor & outdoor) with copper piping control panel.The contractor should take these materials as buy back item of the contract. The rate quoted by this item will be deducted from the bill. After completion of the work, the contractor will be allowed to take these materials from the campus.

5.5 TR Ceiling suspended-Hitachi make-Year of purchase 2005