Advertisement
Electronic pellet burner controller - NPBC-V3M-1 / NPBC-V4T-1
works unconditionally.
Parallel Pumps – both installations work: for heating and for hot water. The DHW circulation
•
pump works until the water heater reaches the set temperature in the menu DHW Setup. The
heating installation's circulation pump turns on when the conditions for this in the menu CH
Setup are implemented and turns off when the room thermostat activates due to reaching the
set temperature in all rooms. When both circulation pumps turn off or when the temperature of
the water in the boiler gets to the set temperature, the burner switches to Suspend mode. It
turns off after the maximum time for the Suspend mode runs out. The burner turns on again
when the temperature of the water in the boiler gets lower than the set temperature minus the
temperature difference set for the second power level in the menu Burn Level. The conditions
for the circulation pumps of the water heater or the heating installation should be implemented,
as well.
For a normal heat exchange, the set temperature of the boiler must be at least 5
•
degrees higher than the set temperature of the water heater!
If the room thermostat is not activated in the menu Addons Activation, the temperature
•
in the rooms is considered as not reached and the central heating circulation pump
works unconditionally.
Summer Mode – the boiler works only to heat the hot water heater. The difference between
this mode and DHW Priority is that in this mode the boiler turns on only if heating the water
heater is necessary and after the set temperature is reached it turns off. On DHW Priority
mode the boiler does not turn off and maintains the set temperature for the water. If there is a
heating installation, which is not controlled by this controller, in DHW Priority mode it will
have the required hot water.
While the burner is working, the "heating installation" field shows one of the following symbols:
only the building's central heating installation works
only the hot water heater's installation works
both the building's central heating installation and the hot water heater's installation work
the hot water heater's installation works in Summer Mode
While in automatic mode, the only purpose of the controller is reaching and maintaining the set
temperature in the boiler. Besides, the controller takes care of the periodical cleaning procedures for
the burner. The frequency of these procedures can be set by Auto Clean Setup menu.
User Manual / version 2.6
http://www.naturela-bg.com/en/
page 9 of 28
Advertisement
