repair maintenance of electrical and mechanical services at 9 sham nath marg ( residential bldg ) , delhi . ( sh- replacement of old worn out split acs with energy saving acs at 9 sham nath marg , old sectt , , delhi ) , supplying , installation , testing & commissioning of invertor type ac unit of following capacity suitable for operation on 220v + 10% single phase 50 hz hv ac supply complete with energy efficient compressor type of refregent r32 / 410 , copper condenser ref . pipe , indoor & outdoor unit , complete in all respect & with cordless remote , refregent pipings & necessary 5 core flexible copper wire of suitable rating / size upto 3 mtr length and pvc drain piping up to suitable place / location i / c connection etc , as reqd . ( make:- mitsubushi heavy industries etc / o general / daikin ) i ) 2 . 0 tr split type ac unit ( 7000 watt ) , 1 . 5 tr split type ac unit ( 5200 watt ) , supplying & drawing of 3x4 sqmm size of pvc insulated copper conductor multicoler cable for indoor to outdoor and upto nearest power point i / c providing suitable copper lugs connection etc as required , providing & laying of refrigerant copper piping ( 5 / 8 & 1 / 4 dia ) from indoor unit to outdoor unit of split type air conditioner unit duly insulated along with 2 . 5 sq . mm . 4 core pvc insulated pvc sheathed flexible copper conductor cable and drain pipe etc . as reqd . , credit for old dismantle material against this work . i ) 1 . 5 tr split ac , 2 . 0 tr split ac