E. g.: if the pre-set temperature reaches 55°C and the hysteresis value is 5°C, DHW pump is deactivated, when the
pre-set temperature of 55
o
C is reached and activated again when the temperature drops down to 50
o
C.
V.c.5)
Pump starting temperature
This option is used to define CH pump and DHW pump starting temperature (the temperature is measured in the CH
boiler). When the temperature is lower, both pumps are inactive, when this temperature is higher, the pumps are
turned on and operate according to the selected operation mode (see Pump operation mode).
V.d)
Manual ignition
This function should be activated when CH boiler is used without fuel feed. When this mode is set, the feeder is
deactivated and ventilator operates according to the parameters set in the maintenance menu. This function is
planned for the firewood mode for
30kW and 50kW
boilers.
V.e)
Modulation settings
Press this icon to configure the CH boiler operation parameters of specific modulation stage. The parameters should
be configured at the same stage (except for
Range from set temp
. parameter which is not applied when the
modulation reaches 30%).
V.e.1)
Feeding time
This parameter defines the feeder operation time having selected the specific modulation stage.
V.e.2)
Temporary suspension of feed
This parameter defines the duration of temporary stopping of feeder when a specific modulation stage is performed.
V.e.3)
Blower force
This parameter defines the force of the fan at the specific modulation stage.
V.e.5)
Pre-set temperature interval
Note
This parameter does not apply in case of 30% modulation.
This parameter defines the time of passing to the next modulation stage (applied for CH boiler operation according to
the entire modulation algorithm). When CH boiler temperature reaches the pre-set value minus the
pre-set
temperature interval
value, the controller switches to the next modulation stage.
V.e.6)
Support mode
This parameter defines the feeder operation time on the support mode (i.e. when the pre-set temperature was
reached).
V.e.7)
Number of support mode cycles
This parameter defines the feeder actuation mode on the support mode. It is connected when the pre-set number of
fan operation cycles is reached. The number of cycles is set by the user.
V.e.8)
Fan support mode
This auxiliary mode is used to set the operating parameters of the fan on the support mode: duration of operation,
duration of temporary stopping and blowing power.
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