Removal, Overhauling, Servicing and Re-installation of Different Makes and Models Window and Split type Air Conditioning units in connection with External Repair and Renovation of CSIR-IICB Building (PHASE-C) at Jadavpur campus, Kolkata-700032

Amount

Removal of Window type AC units (1.0/1.5 / 2.0 TR capacity): Removal of different makes & models Window type AC units from the specific location and keeping the dismantled AC units to store / place / location as indicated by the Engineer in charge within institute campus. This work is inclusive of making arrangement of covering / blocking open area with suitable size ply wooden board and nails (as applicable) as required to meet actual site requirement.

Removal of Split type AC units (1.0/1.5 / 2.0 TR capacity): Removal of different makes & models Split type AC units from the specific location and keeping the dismantled AC units to store / place / location as indicated by the Engineer in charge within institute campus. This work is inclusive pump down of Compressor for restore the refrigerant gas, removal of existing refrigerant pipe lines, drain line, bracket etc. and making arrangement of covering the holes for split AC pipe lines and blocking of pocket with white cement /putty or ply wooden board and nails (as applicable) as required to meet actual site requirement.

Installation of new Split type AC units or Re-installation of existing Split type AC Units (1.0/1.5 / 2.0 TR capacity): Standard complete Installtion of new Split type AC units or Re-installation of existing Split type AC Units (different makes & models) for installation / shifting the same from one place to another place as indicated by the Engineer in charge / Lab in charge within the institute campus. This work is inclusive of all necessary work like Overhauling & Servicing (for existing AC units) , Laying & fixing of Copper pipes with insulation & Wrapping tape, Laying & fixing of Electric Wires & Drain Pipes, fixing of bracket, Leak testing, required Refrigerant Gas charging, necessary ply wooden board fixing & painting the same, covering the holes with white cement / putty if any etc. as required to meet actual site requirement for installation of AC units and run smooth functioning of the same

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 : (Similar to Split type AC units works)

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

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

12.7 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

Providing interconnected 1.1 KV, FRLS 4 Core x 2.5 Sq. mm Electric Wire (multi-strand) for Electrical connection of Indoor & Outdoor units of AC units

Providing suitable size heavy duty Bracket ( steel material, L shape , powder coated finish) for fixing of outdoor unit of 1.5 / 2.0 ton capacity AC units.

Providing suitable size hard braided pipe (Dia-1/2", Colour- White / Blue ) for drain line of AC units

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. External work

25 mm nominal outer dia Pipes

Providing suitable Refrigerant Gas (R-22 /33/410 or eco friendly) for different makes & models AC units

Providing Heavy duty Ply wooden Board (thickness 19 mm or above or equivalent) for installation of Split AC units

Providing of heavy duty , hard PVC Cover-Casing (for covering of refrigerant pipe & drain line ) at least minimum size of 2” x 2” or above or as per site requirement.

Providing of 15 Amps , 3 pin Plug Top for Electrical connection

scientific refregeration