The contamination in condensate occurs as a result of usage of various utilities like brine, chilled water, cooling water, and steam in the same jacket and if sent to the boiler feed water it might scale its tubes. Hence, condensate is often drained due to fear of contamination.
The Forbes Marshall Utility Automation Module recovers condensate only at the right temperature (setpoint given). This ensures that the initial condensate which is contaminated is drained and the pure condensate at the right temperature (E.g. 90 deg C) is recovered and sent to the boiler feed water tank thus increasing the feed water temperature drastically.