A heat exchanger including: a first tube bank including an inlet manifold and a plurality of first heat exchanger tubes arranged in spaced parallel relationship; a second tube bank including an outlet manifold and a plurality of second heat exchanger tubes arranged in spaced parallel relationship; an intermediate manifold (104, 204) configured to fluidly couple the first tube bank and the second tube bank; and a distributor insert including at least one first dividing element configured to define a plurality of first refrigerant chambers within the inlet manifold; wherein the distributor insert includes a plurality of refrigerant distribution orifices configured to provide a refrigerant flow path from an internal cavity of the distributor insert to each of the plurality of first refrigerant chambers; the heat exchanger further comprising: at least one second dividing element arranged within the intermediate manifold (104, 204) and configured to define a plurality of second refrigerant chambers therein, wherein each second dividing element is arranged at a position substantially identical to a corresponding first dividing element such that each second refrigerant chamber is fluidly coupled to the same portion of first heat exchange tubes as a corresponding first refrigerant chamber; characterized in that the distributor insert is arranged within the inlet manifold; and each of the plurality of second refrigerant chambers is subdivided into a plurality of sub chambers, each sub-chamber being fluidly coupled to a portion of the first heat exchanger tubes connected to the second refrigerant chamber. a first tube bank including an inlet manifold and a plurality of first heat exchanger tubes arranged in spaced parallel relationship; a second tube bank including an outlet manifold and a plurality of second heat exchanger tubes arranged in spaced parallel relationship; an intermediate manifold (104, 204) configured to fluidly couple the first tube bank and the second tube bank; and a distributor insert including at least one first dividing element configured to define a plurality of first refrigerant chambers within the inlet manifold; wherein the distributor insert includes a plurality of refrigerant distribution orifices configured to provide a refrigerant flow path from an internal cavity of the distributor insert to each of the plurality of first refrigerant chambers; the heat exchanger further comprising: at least one second dividing element arranged within the intermediate manifold (104, 204) and configured to define a plurality of second refrigerant chambers therein, wherein each second dividing element is arranged at a position substantially identical to a corresponding first dividing element such that each second refrigerant chamber is fluidly coupled to the same portion of first heat exchange tubes as a corresponding first refrigerant chamber; characterized in that the distributor insert is arranged within the inlet manifold; and each of the plurality of second refrigerant chambers is subdivided into a plurality of sub chambers, each sub-chamber being fluidly coupled to a portion of the first heat exchanger tubes connected to the second refrigerant chamber.