Embodiments of the present disclosure are directed to a condensate collection assembly that includes a condensate collection trough configured to couple to the heat exchanger, the condensate collection trough having a condensate receptacle and a channel, the condensate receptacle is configured to be positioned adjacent to a condensate flow path of the heat exchanger and receive a condensate from the condensate flow path, and the channel is configured to direct the condensate from the condensate receptacle to a condensate pan and a cover disposed over the channel, where the cover is configured to restrict a flow of air from entering the channel.