Transition duct and Ducting Assembly

In case of failure of ACU (failure of either compressor or condenser) the loco shall have a facility to switch to ventilation cooling system. So, that filtered fresh air shall be drawn through condenser inlet and shall be passed on to the evaporator blower. The blower shall force the air into the Ducting system and provide ventilated cooling to the machine room in same manner as it is existing in MRB.