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5.4.4 FAN SPEED IN MAINTAINING
This option allows you to select the appropriate fan speed (blowing power) in maintaining cycle.
5.5 MANUAL OPERATION
For the convenience of the user, the controller has been equipped with a Manual Operation module. In this function, each
actuator (fan, CH pump, DHW pump) is switched on and off independently of the others.
Pressing the OPTIONS button starts the motor of the selected device. This device remains running until the OPTIONS button is
pressed again.
The blowing speed option is also available, enabling the user to set any fan speed in manual operation.
5.6 PUMP OPERATING MODE
In this function, the user selects one of the available boiler operation modes.
5.6.1 HEATING
After selecting this option, the controller enters the "only heating" state. The CH pump will start operating above the CH pump
start-up temperature. Below this temperature (minus the hysteresis value) the pump stops working.
5.6.2 BOILER PRIORITY
In this mode, the DHW pump operates until the boiler is heated (the valves close to the maximum and the valve pumps are
switched off). At the moment of obtaining the set temperature on the boiler, the previously operating pump will be switched off,
while the CH pump will be switched on and the mixing valves will be switched on. The moment the boiler temperature drops
below the set point temperature by the hysteresis value, the DHW pump will switch on again and the valves will stop working.
CAUTION
The boiler should have check valves installed in the CH and DHW pump circuits. The valve mounted on the DHW pump
prevents the extraction of hot water from the boiler. The valve mounted on the circuit of the CH pump does not let the
hot water that heats the boiler to the home heating system.
5.6.3 PARALLEL PUMPS
Mode in which the CH pump operates above the pump start-up threshold. The DHW pump switches on in parallel and reheats the
boiler, while after reheating the DHW, the pump switches off. The pump will restart after the temperature drops by the DHW
hysteresis value.
CAUTION
If the boiler's current temperature is lower than the current temperature on the boiler, the DHW pump will not switch
on to protect against cooling of the boiler water.
5.6.4 SUMMER MODE
When this function is activated, the CH pump is switched off and the DHW pump is switched on above the pump switch-on
threshold. When the threshold temperature is exceeded, the DHW pump operates all the time until the boiler temperature drops
below the pump start-up threshold (by DHW hysteresis value). In the summer function, only the set temperature of the DHW
vessel is set, which is also the set temperature of the boiler.
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