supplying, installation and commissioning of 5nos. 1.5 ton split type 3star 100 percent copper inverter type room air conditioner machine in the chemical engineering classrooms, rajabazar science college, c.u. , supplying of new 1.5ton split type 3star (100%copper) adjustable inverter type with dust filter, anti bacterial coating, dehumidifier room air conditioner machine with high iseer, make-panasonic/carrier/voltas or equivalent make. , installation with fitting, fixing & commissioning of the above machine along with supplying of angle iron frames/angle iron platform, electrical chord, extra copper pipes etc as required including insulation & drain pipe upto the nearest spout of drain of the building etc all complete. (position of the outdoor unit will be mentioned by the authority during executing the work.) , less: buy back of the existing room air conditioner machine.