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© 2011 Aqua-Hot
®
AHE-100-02S Hydronic Heating System Service Manual—Rev. B
SECTION 6: DIESEL-BURNER OVERVIEW
Diesel-Burner Operations:
The following sequence illustrates how the Diesel-Burner
operates once it is activated. Also, if diesel-burner malfunc-
tions are experienced, use this sequence of operating events
as a diagnostic tool to determine at what point in the diesel-
burner’s operation the malfunction is occurring. Use the
“KEY”
provided to understand each symbol shown.
Figure 24
NOTE: The Motor and Combus-
tion Air Blower will begin to oper-
ate only if the VDC Control Ther-
mostat is closed and calling for heat
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