9
Techni
cal characteristics and dimensions
2
TECHNICAL
CHARACTERISTICS AND
DIMENSIONS
2.1 TECHNICAL CHARACTERISTICS
- Heat generator, to heat Low Nox condensation gas
- Comprised of a heat module designed to operate on its own or in a
set
- Can be set up directly outside (IP X5D)
- Low water content
- High response speed to load changes
- Single flue exhaust that can be positioned on 3 sides
- Unified flow and return hydraulic manifolds
- Comprised of or more heating elements (between
3
and 7),
aluminium/silicon/magnesium casting
- Including total irradiation premixing modulating burners
- None of the heating elements have hydraulic cut-off devices
- Single gas supply pipe
- Modulated power between 12 ÷ 50 kW/element.
TEMPERATURE CONTROL DEVICES:
- ROOM NTC sensor (every heating element)
- Room Limi
t Th
ermostat (every heating element)
- Flow NTC sensor (General)
- Return NTC sensor (General)
- Approved safety thermostat
- BCM globa
l flo
w probe.
OTHER SAFETY DEVICES according to the R COLLECTION.
POP-UP control panel composed of:
- ON-OFF switch
- HSCP boiler thermoregulation/manager
- BCM (internal cascade management board)
- Protection fuses
- Any limit thermostats > 350kW
- Fan air pressure switch
- Condensation water level sensor
- Gas pressure switch
- Exhaust pressure switch (anti-obstruction).
-
Th
e entire heating unit is equipped with global temperature control
NTC sensors on th
e flo
w and return manifolds.
- Integral insulation with non-allergenic synthetic wool.
- Total premix burner, modulating, with "metal foam" radiation
combustion chamber. Premixing in the fan. Automatic separating
back
flo
w diaphragm from the combustion chamber.
- Sound emissions at maximum power below 52 dBA for models 100-
350, 54 dBA for models 440-770 and 56 dBA for 900.
- Operation during heating: determining the instantaneous power
through a control microprocessor, with preset comparison parameters
between requested temperature (or calculated by the outdoor
thermoregulation) and globa
l flo
w temperature.
- Logic of operation:
- Possibility of controlling the power of the single heating elements
for calibration and/or assistance with reserved access code.
- Domestic hot water production using a priority NTC probe, for
control by a storage tank loading pump or diverter valve, is done
with an SHC module that is supplied with the boiler.
- Possibility of controlling the power of the single heating elements.
- Heat request control: temperature setpoint and modulation level.
- Monitoring the state of operation and temperatures.
- Alarm not
ific
ation.
- Parameter setting.
- Control relay to switch on a pump a
t a fix
ed speed.
- Analogue 0÷10V output to control a modulating pump.
- Emergency operation: this allows you to avoid the system from
stopping due to an interruption in communication with the adjusting
system or possible remote management of the control unit:
- Emergency temperature with maximum power 100%.
- Alarm management.
-
Alarm reset input.
-
Alarm not
ific
ation Relay.
- Condensation collection tray with stainless steel exhaust trap.
- Easily removable integral panelling comprised of oven-painted steel
panels suitable for outdoor installation.
- Condensation collection tray with stainless steel exhaust trap and
fl
ue
chamber.
- Incorporated deaerator.
Th
e request for heat can be generated by the HSCP thermoregulation/
manager or alternatively by the BCM (Boiler controller).
The management logic envisions simultaneous operation of the
maximum number of heat elements, so as to always obtain the
maximum
efficien
cy. Since it guarantees the maximum exchange area
based on the delivered power
. Th
e elements are made to operate so as
to equally divide the operating time.
Th
e hot water that is produced is pushed by the pump located on the
return of the primary ring to the
flo
w of the hydraulic separator. From
here a second pump (system - see suggested diagrams) will distribute to
the various utilities. From the system, return the cooled water is taken
in by the pump on the return, through the hydraulic separator, to start
the cycle towards the generator again.
