Control and monitoring device for fuel powered heating apparatus e.g gas-heated circulation water heater

摘要

The device has a microprocessor (5) and an ASIC module (6). These are coupled together via a bus (38) and control the components of the heater e.g. fuel valves (16) which are connected to a voltage source (13). The ASIC module (6) has active end stages (39) for the components to be controlled e.g. blow motor (14), magnets of the fuel valves and a motor for the circulation pumps (43,44). The ASIC module output (46) for the lifting magnets of the gas valve may be connected to the microcomputer (5) via a lead so that the microcomputer (5) monitors the control of the fuel valve.