HDG Compact 25 - Page 120

6 Using the heating system – Structure of the menus
120
2-20 Boiler
Overtemperature for
boiler temp. above
( 90) 90°
• Excessive boiler temperature
System switches off if the supply temperature exceeds
the preset value. At the same time, the return mixing
valve is opened and the pump is switched on. (0 - 100°C)
2-23 Lambda stop
Off
On
• Switching the lambda stop on or off
The default setting is: On.
2-24 Boiler
Stop filling
at lambda below
( 5.0) 5.0%
• Lambda stop
If the oxygen value falls below this presetting, the mate-
rial feed is stopped.
(2 - 21%)
2-25 Boiler
Stop filling at
chamber temp
above
( 650) 650°
• Chamber filling stopped
If the combustion chamber temp. exceeds this presetting,
the material feed is stopped.
(300 - 1000 °C)
2-26 Flue fan avail.
no
Uncontrolled
Controlled
• Setting options for flue gas fan
No flue gas fan
Uncontrolled (retrofitted) flue gas fan
Controlled flue gas fan
2-27 Boiler
Flue gas fan
Amplification (P)
( 0.02) 0.02h
• Amplification factor for flue gas fan
2-28 Boiler
Flue gas fan
Lag time (I)
( 10) 10s
• Lag time for flue gas fan
2-29 Boiler
Flue gas fan
Maximum
( 100) 100%
• Flue gas fan
Setting option for maximum speed of the flue gas fan.
(0 - 100 %)
2-30 Boiler
Flue gas fan
Minimum
( 0) 0%
• Flue gas fan
Setting option for minimum speed of the flue gas fan.
(0 - 100 %)
2-31 Boiler
Flue gas fan
Hysteresis
( 20) 20%
• Flue gas fan
Maximum permissible deviation of the set speed of the
flue gas fan.
(0 - 100 %)
No. Display Description
Table 6/4 - System level / 2 - Boiler