supplying, installation and commissioning of 4nos. 1.5ton split type 3star (100 percent copper) inverter type room air conditioner machine in the department of physiology, rajabazar science college campus cu. , 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 old room airconditioner machines (split/window type).