Electrical Installation at the Corridor of the 3rd Floor of Vidyasagar Bhawan Salt lake Sector V Kolkata 91 SITC of air conditioning system

Supply, lnstallation , Testing & Commissioning of microprocessor based air cooled 2.55TR to 3.0 TR ceiling suspended concealed type air conditioner with R-32/R-410A Gas, having cooling capacity of (8.8 kw to 10.4 kw, Min CFM-840, noise level less than 50 dBA, with Fixed speed/ inverter type single / multiple Rotary/Scroll Compressor suitable for operation on 220-240V 50 HZ, 1Ph/415-50 Hz-3 phase AC supply for outdoor, Make-Mitsubishi Electric Cat No-PE-M30JAK-DA/2.5 TR or Similar of Mitsubishi Heavy FDUM100CSV-S6/ O-general)

Hiring charges for Lifting arrangement of ODUs at an height of 5th floor by Chain pulley arrangement (capable of handling upto 4 Ton lmachine) including neccessary manpower for operation of the arrangement with setting up the arrangement and dismanantling at the end of work for 2.5TR to 3 TR Air Conditioner System.

Hiring charges for scaffolding arrangement including dismantling at the end of work and carriage for installation of IDUs, per storey of building per vertical run including labour charges for carrying the AC indoor units to dedicated rooms.

Refrigerent Piping : Supply,Installation & commissioning of hard copper refrigerant piping, complete with fittings Elbows, Bends, supporting arrangement on walls for ductable split A.C. a) 9.52mm dia Liquid Line Hard CU pipe minimum Thickness 1.15 mm. following Dia .[ Make Royku / Totaline/ Mandeep] with 13 mm. thick nitrile tube insulation.[ Make Aroflex / Acoflex]

b) 15.88 mm dia Gas Line Hard CU, pipe minimum Thickness 1.15 mm. following Dia .[ Make Royku / Totaline/ Mandeep] with 13 mm. thick nitrile tube insulation.[ Make Aroflex / Acoflex]

Cabling Works : Supply, & laying of control cable (6 Core x 4.0 SQmm Cu un-armoured PVC.) with necessary cable conduit & fittings. The cabling shall be bundled properly and shall be properly aligned with the refrigerant piping.(Make Heavels/ Polycab/KEI/Gloster)

Refrigerent : Supply & Charging Refrigerant - 410 A

Supply & Fixing Aluminium Continuous Grill. (Mk. System Air/ Premire /Air Enterprise)

Supply, fittings and fixing in position suspended type boxing for return and supply air arrangement incl. false ceiling for boxing of IDU with frame work of Aluminium hollow section of size 50x25 (2.0 mm thickness) combined with aluminium corner of size (38 mm x 25mm) suspended by aluminium hollow tube section of size 38mm x 25mm as suitable with ACP (Thickness- 3.0 mm) with another accessories incl. all incidental charges etc. as per direction of EIC.

Supply and fixing flexible double canvass connection for concealed split air-conditioners.

Drain Piping : Supply & laying of 40 mm drain Water piping work out of UPVC (Make Skipper/ Supreme / Florex) incl. fitting , accessories bends, elbows, tees, flanges, tapings, etc. insulated with 9mm. Thick nitrile rubber tube insulation.

FRAME WORK: Supply, fabrication and installation of MS base frame for 2.5 to 3 TR Air conditioner outdoor units.:- Supplying,fabrication & fixing 3Nos. M.S u-channel of 6 mm thick of size (75mm x40mm x 40mm) of 1m. Lengthfor making platform for installation of outdoor unit of 11/8.5/5.5/4TR ductable split AC incl. drilling 2nos. Holes in each channel including cutting holes into the wall & grouting the same with Cement concrete ( 1:1 1/2 :3) etc. fabricated with horizental angle of 25mm X 25mm x 6mm including supporting angle 50mm X 50mm X 6mm in each platform in outer edge, for transmitting the load centrally through 2Nos. (50mm x 50mm x 6mm) Angle inserted into the exiting wall. The entire platform should be baricated & safe for ODU maintaince. (Appx: 328kg)