Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior
notice.
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5.2 Settings for Maintenance Fire
The maintenance fire position is automatically controlled by the burner.
The maintenance fire position
represents a low fire, small continuous output level of about
2000 Btu/hr
designed to allow burner restart without
the ash scrape cleaning function. It allows continued operation without the need to restart the ignition process.
Depending on the length of the previous maintenance period, the burner will automatically determine whether to
go into this “maintenance” mode. The time limit for this is set in “menu step 56”, default setting 1:00 hour.
* Last maintenance period shorter than time in “menu step 56”, burner will run in maintenance mode.
* Last maintenance period longer than time in “menu step 56”, no maintenance fire mode.
The maintenance mode is specifically designed to keep a very small fire (2000 Btu/hr) in the burner and allow
continued burner operation without automatic ignition. The burner operates normally to maintain desired water
temperature.
