tender for replacement of old damaged and unserviceable 11tr inverter ductable ac unit by supply installation testing commissioning of new 11tr inverter ductable ac unit at mahanayak mancha unnayan bhavan. - 1 supply, installation, testing and commissioning of ceiling concealed inverter type ductable unit with inverter compressors with r-410a gas, run-time equalizer facility, anti-corrosive coating with copper coil at outdoor and hydrophilic coating colling coil at indoor unit. 11 tr inverter ductable unit r410a gasmake-lg, model no.-jbuq132l8a0.apune & jbnq132l8a0.apune or equivalent and as per direction of the eic including less cost of old damaged materials. 2 shifting, installation, testing and commissioning of indoor units, outdoor units and fitting of remote controls etc. 3 sitc of interconnecting refrigerant pipe work with (19mm/13 mm thick) closed cell elastomeric nitrile rubber tubular insulation between each set of indoor & outdoor units as per specifications, all piping inside the building shall be properly supported. 4 suction copper line. 5 liquid copper line. 6 sitc of control cum transmission wiring of 2 x 1.5 sqmm copper shealded wire in suitable pvc conduits between indoor and outdoor etc complete as required. 7 sitc of rigid pvc piping 32 mm dia complete with fittings, supports as per specifications and duly insulated with 6 mm thick closed cell nitrile rubber insulation. 8 sitc of providing and fixing fire retardant non porous double layer flexible connection between each indoor unit and duct. 9 sitc of aditional charging. testing of refrigerent gas r410a.