Biopel MINI - Installation and Operation Instructions
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8.
CONTROL UNIT FUNCTIONS DESCRIPTION
This chapter presents a complete description of all functions in the v9 MINI control unit menu. This list can be used as a general
introduction to the individual functions. In all functions, you will find recommended settings and a description of what each
item controls and information on how the functions are interrelated.
8.1.
First start
The boiler's first start is used by the installer to easily set the basic operating parameters for proper boiler operation.
Therefore, this menu is secured with an access code and only a certified installer has access to this menu. There is an
entire chapter in the manual dedicated to this menu.
8.2.
Ignition / Extinction
This function is used to activate and deactivate the boiler. If the boiler is deactivated, you will see the Ignition sign. After
pressing it and confirming it, the boiler will enter the automatic pellet ignition mode. After about 5 minutes, the boiler
will ignite and switch to the so-called PID mode. If the boiler is activated, i.e., in PID mode or Ignition, you will see the
Extinction sign. After pressing it and confirming it, the boiler will enter the Extinction mode. The feeders stops feeding fuel
and the fan increases fan speed to clean and cool the grate. This takes 5-15min, depending on burner. The boiler will then
shutdown and remain deactivated until the Ignition button is pressed.
8.3.
Main settings
These settings contain user functions that modify the boiler operation, but do not affect its operation and the operation
of accessories important for its proper function.
1. Set CH temperature
Select the central heating temperature (maximum boiler temperature). It is
recommended to set it between 60-80°C. higher temperature is better for proper boiler
operation and long boiler service life.
60–80°C
2. Set DHW temperature
Select the desired domestic hot water temperature. DHW is only activated if the DHW
sensor is connected to the "DHW sensor" output in the external socket and if the
operating mode in the Main settings is correctly selected.
45-70°C
3. Burner cleaning
Activating the fan for cleaning the burner grate. The fan regularly increases its speed to
clean the burner grate.
3.1 Cleaning period
Time between cleaning. Bigger burner / more frequent cleaning required.
6-15min
3.2 Fan operation time
Cleaning time. Bigger burner / longer cleaning required.
10-20s
3.3 Blowing intensity
Fan speed during cleaning. Larger burner / faster speed required. Caution for high
rotational speed during cleaning. High speed (especially during low boiler output) may
cause extinction (no flame after cleaning). High speed may also cause unburned pellets
to fall into the ashtray. If any of these situations occur, reduce the fan speed.
50-100%.
4. Operating modes
Operating mode of CH and DHW pumps connected to external socket. Select the time that pumps
are to be switched on and off. Caution: CH and DHW pumps only operate in this mode if the current
CH temperature is above 40°C. This is set in the Service menu, Pump switch-on temperature. The
activated pump is indicated on the Main Panel by an icon
4.1 House heating *
1
Only the central heating pump is working. The pump switch-on temperature is set to 40°C. The DHW
pump is deactivated.
4.2 DHW priority *
2
The DHW pump is overridden by the CH pump. The moment the DHW temperature is reached - the
DHW pump is deactivated and the CH pump is switched on for heating the house. The moment the
DHW drops below the DHW Hysteresis - the CH pump is deactivated and the DHW pump is re-started
until the DHW temperature reaches the desired value.
4.3 Parallel pumps *
2
Both CH and DHW pumps operate simultaneously to heat both the house and the boiler.
4.4 Summer mode *
2
Only the DHW pump is activated to heat the boiler.
*
1
Connect CH pump into the "CH pump" output in the control unit.
*
2
Connect DHW pump into the "DHW pump" output in the control unit.
