AUTOMATIC HEATING-SYSTEM FILLING APPARATUS, A METHOD OF IMPROVING THE SAFETY OF A HEATING SYSTEM, A METHOD OF AUTOMATICALLY TESTING AND A METHOD OF MANAGING AN AUTOMATICALLY REPLENISHING HEATING SYSTEM

摘要

An automatic heating- system filling apparatus (10) comprising: first and second automatically- controllable fluid-flow valves (18, 20); a fluid-pressure sensor (22) which is downstream of the second valve (20) for monitoring of a fluid pressure in a heating system (16); and an electronic controller (28) which controls the first and second valves (18, 20) based on an output of the fluid- pressure sensor (22), so as to increase said fluid pressure to a predetermined level. The electronic controller (28) includes a testing circuit which automatically tests an open and closed condition of the first valve (18) while the second valve (20) is closed and vice versa, based on a change in output of the fluid-pressure sensor (22); and a notification circuit, wherein the automatic heating- system filling apparatus (10) allows fluid flow from the fluid supply (14), the valves (18, 20) only being opened in the event of a positive testing result.