Danfoss ECL Comfort C25, User Manual

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The grey
side of the
ECL Card
Ex
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Service parameter(s) 71
71 Min. ON-time of the burner
Circuit Setting range Factory setting
I 0 ... 9 min. 1 min.
Set the minimum operation time for the burner.
The boiler can be protected against condensation
/ corrosion caused by insufficient heat-up time at
each boiler start. The protection is obtained by a
minimum operation time of the burner. With this
setting the boiler temperature difference (line 4,
section 24) is overruled.