Froling FHG 20 - Menu - Boiler; Status Displays for the Boiler; Temperature Settings for the Boiler

Boiler Control System Lambdatronic S 3200
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5.6 Menu – Boiler
5.6.1 Status Displays for the Boiler
Display
Description
Boiler temperature 80°C
Actual state values of boiler control system
:
:
Flue gas temperature 167°C
Flue gas setpoint 165°C
Boiler control variable 95%
ID fan - control 90%
ID fan speed 3240U
Primary air 97%
Position of primary air flap 96%
Oxygen control 36%
Secondary air 36%
Position secondary air flap 38%
Sensor 1 50°C
5.6.2 Temperature settings for the Boiler
Setting value
Description
Boiler temperature
setpoint 82°C*
Major set point for Boiler Control System. The boiler temperature is
continuously controlled to reach and hold this temperature
Shutdown if current boiler
temperature is higher than
boiler setpoint + 8°C*
If the boiler temperature exceeds the target value by this parameter
value, the Boiler Control System switches to “Slumber” mode (on-off
control). The combustion will restart if boiler temperature drops
below the target temperature again.
Always switch off at
maximum boiler setpoint + 3°C
If the boiler temperature exceeds the maximum target value of 90°C
(194°F) by this parameter, the Boiler Control System switches to
“Slumber” mode (on-off control). To prevent overheat the Thermal
Storage System circulator will be forced to cool the boiler. The
combustion will restart if boiler temperature drops below the target
temperature.
Minimum boiler temperature
to release the boiler pump. 65°C
The circulator is released above this boiler temperature.
Differential = 2 degrees C. The pump will shut off at 63 degrees
C.(Hysteresis 2°C)
*Adjust to desired temperature. Recommend 82º C.