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7.2. BOILER AND ACCESORIES SETTINGS (FUNCTION PARAMETER #2)
This parameter sets the electronic board for each of the three different operation modes (“HEATING ONLY”,
“HEATING AND HOT SANITARY WATER PRODUCTION WITH SINGLE OR DOUBLE COIL HEAT
EXCHANGE ARRANGEMENT”, “HEATING AND PUFFER TANK MANAGEMENT”). The functional settings
follow the same logic of the “Function parameter #1”. To calculate the required value you will add the
weighted values assigned to each function in the following way:
Functional settings:
Without SOLAR PANELS
set “0
With SOLAR PANELS
set “1”
With BYPASS PUMP
set “0”
Without BYPASS PUMP
set “2”
Without external hot sanitary water tank
set “0”
With external hot sanitary water tank
set “4”
External tank, type with heat exchanger coil set “0”
External tank, type PUFFER or PUFFER COMBO
set “8”
WARNING:
to set a Puffer or Puffer combo type tank add 8, but must also be added the value 4 for the external tank
setting up. In this example, you will have to introduce the value 12.
Function parameter #2 setting example
If setting up an external coil type hot water production tank is required, along with solar panels and
the bypass feature, the following calculation will be performed:
Parameter value Function 2 = 1 (with solar panels) + 0 (bypass feature present) + 4 (external hot water tank)
+ 0 (coil type tank) Total = 5.
7.3. DISPLAY
LANGUAGE SELECTION.
Parameter #12 selects the display language.
4 languages are available:
Value 00: italian
Value 02 : romanian
Value 04 : french
Value 06 : spanish
8. “HEATING
ONLY” OPERATION
To connect the boiler in heating only mode refer to connection diagrams 8.3.1 - 8.3.2 - 8.3.3. controls the
system pump and the bypass pump The required probes are S4 (system delivery high point probe) and S5
(system return low point probe). These settings are valid even for models SA with real time hot sanitary water
production heat exchanger.
To have the boiler turned ON and to start the "timed operation cycle" must be pressed the red button on the
control panel (
); the drafting fan is started and the display changes from OFF (standby) to ON. The fan
remains ON until the water temperature reaches the value set by the parameter “Boiler working temperature”.
NOTE: it is important to remember that any time the button (
) is pressed, the timing options and the
options related to the operation mode AUT (Automatic) or MAN (Manual) are stored on a non volatile
memory. In the case of black-out, the boiler will start from the point where it was at that moment.
The system pump is controlled by the room thermostat, but only if the boiler water temperature is more than
the value set by the parameter “Minimum boiler temperature” and “Temperature difference in heating mode”.
If the boiler does not reach the temperature required during its ON timed cycle, will pass to the standby
mode.
The bypass function avoid water temperature stratification between its highest and lowest points. The
parameter “Maximum boiler body temperature differential” turns ON the bypass pump if the temperature
difference between the high and the low point of the boiler is more than the preset value. The bypass circuit
is always ON both in standby and in “Timed operation cycle” at any temperature.
Содержание ASPIRO A 29 R/SA
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