The new compact burner controls D‑GF 75 and ASD‑75 perfectly complement the range of DURAG Group burner controls. They replace the previous models D-GF 55 as well as AAUS620L20 and AASD820L20 and expand their functionality considerably.
The new burner controls can control a blower, monitor the air pressure achieved and perform a prepurge of the boiler. The prepurge time as well as the safety times for startup and operation can be changed at the device. Furthermore a re-cycling after a flame loss in the operating position can be (de-)selected.
Unchanged is the ability of the D‑GF 75 and ASD‑75 to connect an external flame monitor. The D‑GF 75 allows the combination of its internal ionisation flame monitor with an existing ionisation electrode while the ASD‑75 with its input for a 90-110 VDC flame signal is ideally suited for the combination with Hegwein burners/igniters.