supply of supply and commissioning , supply and commissioning of following set of items : i) copper pipe 1/2 inch along with 2.5 sqmm 4 core wire and sleeve - 12 meter ii) copper pipe 1/4 inch along with 2.5 sqmm 4 core wire and sleeve - 12 meter iii) 4 core 1.5 sq.mm cable - 30 meter. iv) 4 core 10 s q.mm cable - 20 meter. v) r32 gas - 4.5 kg vi) imr, a7 - 02 nos vii) suction pipeline for wra- 03 nos. viii) polyamide conduit pipe 25mm - 2 0 meter ix) (a) wiring works of split ac units - replacement/provision of power cables(outdoor to indoor unit) of 3 nos. of split ac units at 3 l ocations(hall=supervisor room + staff), (b) refrigeration works - 3 split ac units replacement/provision of copper tubes of suction and disch arge line between indoor and outdoor units; gas leakage ; gas charging, ac split ac units working testing. (c)wiring works of 02 nos. of wra - replacement /provision of wra wiring from wra in underframe to roof junction box in generator room. (d) replacement/provision of underf rame cable from dg set to gpr system from roof junction box to gpr system in underframe and erection, installation and commissioning of all above items. [ warranty period: 30 months after the date of delivery ] ]