supply of supply and installation of evaporator coil set for rmpu , supply and installation of evaporator coil set for rmpu of lhb type ac coaches along with fi ter drier, thermo expansion valve, angle receiving valve, conforming to rdso spec no- rdso/pe/spec/a c/0061-2005 (rev-1), refrigerant gas r-407c, nitrogen gas ( for leak testing and cleaning of existing sedi mentation of refrigerant pipe lines). one set consisting of 02 nos of evaporator coil (left and right) , 02 no s of liquid line filter drier, 02 nos of expansion valve, 02 nos of angle reciving valve, (removal & fitting of liquid line filter drier, thermal expansion valve, angle receiving valve etc, charging of refrigerant, fabricatio n and associated job i.e. brazing, leak testing etc with supply of related materials should be done by firm.) [ warranty period: 30 months after the date of delivery ] ]