Bosch WTD 15-4 AME 23 - 5 Working Principle; Electric Measurements

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Pict.27 – Ionization electrode and its sealing element
Pict.28 – Ignition electrodes position on the burner
5. Working Principle / Electric Measurements
Water Flow Detection and solar mode operation
Water Flow Calculation
procedure
WF = Power
(T
set
– T
in
)
WF ≥ 2.8 l/min
Burner ON
WF < 2.4 l/min
Burner OFF
Burner On
Solar mode Operation
Burner Off
T
in
≥ T
set
– 1K
T
out
< 60ºC
(if T
set
≤ 50ºC)
or
T
out
< T
set
+
10ºC
(if T
set
> 50ºC)