supply of roof mounted ac package unit (rmpu) , roof mounted ac package unit (rmpu) for lhb eog ac coaches in coach sets con sisting of rmpu (with r-407c refrigerant)-02 nos. and microprocessor controller unit-1 no., with supply of bellows set consisting of 01 no. supply air bellow, 02 nos fresh air bellows & 02 nos. return air bellows ducts made of meta aramid/ para aramid fabric with silicon rub ber coating on both sides to spec. no. rdso/pe/spec/ac/0197-2020 (rev-1), rmpu as per specific ation no rdso/pe/spec/ac/0061-2005, rev-1, type- i & microprocessor controller unit to rdso/ pe/spec ac/0139-2009, rev-1, complete with accessories, as per scope of supply as in the rdso specification. material must be procured from rdso approved sources vide rdso sub-item id: 3100018001. [ warranty period: 30 months after the date of delivery ] ]