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5 - RETURN
4-33 Control
O2 fuel change
delta Minimum
( -10) -10%
• Fuel change due to residual oxygen
If the residual oxygen is too low, the specified percentage
value is deducted from the fuel quantity.
(-50 - -100 %)
4-34 Control
O2 fuel change
delta Maximum
( 10) 10%
• Fuel change due to residual oxygen
If the residual oxygen is too low, the specified percentage
value is added to the fuel quantity.
(50 - 100 %)
4-35 Controller info
no
yes
• Controller info
If set to “yes”, additional menu windows are displayed
with current controller values.
4-36 Control
Combustion
fan speed
( 80) 80%
• Input for combustion fan speed
(0 - 100%)
4-37 Control
Combustion fan
speed Log wood
( 50) 50%
• Input for combustion fan speed
For “Log wood” emergency operation.
(0 - 100%)
No. Display Description
Table 6/6 - System level / 4 - Control
Warning!
Falling below dew point
Do not set the return temperature below 60 °C.
No. Display Description
5-01 Return
Pumps on/off at
boiler temperature
( 57) 57°
• Enabling of the return pump
If the boiler temperature is above this setting, the return
pump is enabled.
(40 - 80 °C)
5-02 Return
Mixing valve
total runtime
( 150) 150s
• Total runtime of return flow mixer
Set the total runtime of the return flow mixing valve.
(100- 600 s)
5-03 Return
Mixing valve
Minimum runtime
( 3) 3s
• Minimum runtime of return flow mixer
Set the minimum runtime of the return flow mixing valve.
(1 - 100 s)
Table 6/7 - System level / 5 - Return
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