Patent ID: 7823628
Filing Date: 2010-11-02
Classification: F24D,F24H,F28D,F28F,Y02E,Y10S,Y10T

Abstract:
1. A module for use with a thermal energy system, comprising: a heat exchanger for transferring thermal energy between a source and a load, the heat exchanger having a primary side associated with the source, and a secondary side for receiving fluid to be heated and outputting heated fluid, the fluid flowing through the secondary side of the heat exchanger in a first direction; an input for receiving mains fluid for said load; and a single back-flushing valve for back-flushing the secondary side of the heat exchanger; wherein the back-flushing valve routinely directs unheated mains fluid through the secondary side of the heat exchanger in a second direction opposite to the first direction without user intervention.