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CONFIGURATION 3 – Zone heating -
B
Configuration identical to CONFIGURATION 1, with the addition
of a zone module to manage a system with up to four zones per
module, with zone valves or zone circulators. If the module is used,
parameter Pr90 must be activated in the TECHNIC SETTINGS in the
SETTINGS GENERAL page, setting the value to ON. The module
allows all thermostats to be received in input (CLEAN CONTACT)
and to activate the relevant outputs (CLEAN CONTACTS) that can
be used for zone valves or circulators. Connection between the stove
and expansion module must include the terminal from the module
OC connector to the stove back panel OC terminal. Zone module
electrical power must be protected by the same circuit breaker that
powers the stove.
WARNING
CONFIGURATION 5 – Puffer-
The appliance is connected to a Puffer (inert heat tank) and not
B
directly to the heating system. PUFFER TEMPERATURE must be
set. Room temperature control is not considered. However, make
sure the room probe type is set to THERMOSTAT in MENU 4 and
that the connection to the AMB PROBE terminal on the back of the
appliance is always electrically open.
In CONFIGURATION 5, the appliance only ensures that the
temperature probe connected to the PUFF Hi terminal meets set
temperature settings.
When the puffer temperature is met, the appliance switches to
ECONOMY mode, turning off the pump. When puffer temperature
drops 5°C (default value that can be adjusted in MENU 9 – TECHNIC
SETTINGS) under the set value, the appliance resumes operations
at the set power, turning the circulation pump back on when stove
water temperature is higher than PUFFER TEMPERATURE.
In this configuration, the STAND-BY function is automatically
activated and turns the appliance off when in ECONOMY mode for
a period of time longer than that set in MENU 5 – SET STAND-BY,
at the DELAY OFF value.
When the appliance is in Stand-by, thus waiting to turn back on, the
only input that can turn the appliance on is the PUFF Lo probe value
which, at PUFFER SET TEMPERATURE -10 °C, permits restart.
The differential restart value can be set in MENU 9, password
protected for the service technician.
The zone module can be used with CONFIGURATION 5. In addition
to the room thermostats and zone valves or circulators, a secondary
circuit circulator can also be connected to the zone module and
activated by a specific parameters in the TECHNIC SETTINGS
menu.
For further information on zone module use, see the specific user
manual.
If the heat accumulator is equipped with an internal coil for DHW
production, summer mode can be set. In this mode the appliance
only considers Puffer temperature settings and ignores any zone
module and/or room requests.
For stove maintenance, if the zone module is
powered by a different mains than the stove, also cut off
module power. Electrical connections between the two
electronic parts could power the stove board even if
unplugged and vice versa.
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