Gr. 003.0 = n°1 Gr. 005.0 - 011.1 = n°2 Gr. 015.0 - 017.0 = n°3
6 - CONTROL
6.1 BUILT-IN ELECTRONIC THERMOSTAT
display keys
ON / Standby
Keep the ON standby button pressed for about 2 seconds.
The lack of a warning light indicates the "stand-by" status (no function).
When the control is set to this operating mode it guarantees an anti-freeze security.
If the room temperature falls below 5°C the boiler condensation and hot water solenoid valves are activated.
temperature change set
Use the two buttons to set the desired room temperature which is displayed on the 3 digit display.
The adjustment range is from 16 to 28 °C; with resolution is 0.5 °C, but are also permitted off-scale values of 5 °C and 40 °C.(except in AUTO mode)
Only set these values for short periods and then set the selection to an intermediate value.
The command is very precise, set it to the desired value and wait until the command has made the adjustment based on the room temperature detected.
AUTO automatic regulation of the ventilation speed
Press and hold the AUTO key.
When the function is activated, the relative symbol on the display turns on
The ventilation speed is adjusted automatically between a minimum value and a maximum value, according to the actual gap between the ambient temperature and the selected setpoint based on a PI algorithm.
display
A
Automatic function Silent functionMaximum ventilation speed
Night function
Heating
Cooling
Active supervision (flashing, see p.77)
Active alarm (Fixed on)
keys
ON / Standby
Increase set temperature
Decrease set temperature
AUTO Automatic regulation of the ventilation speed
Night function
Minimum ventilation speed
Maximum ventilation speed
Heating / Cooling
brightness reduction
6 - CONTROL
silent function
Hold down the Silent key.
The activated function is indicated by the relevant symbol lighting up on the display
The ventilation speed is limited to a lower value.
night functioning
Keep the night functioning button.
When the function is activated, the relative symbol on the display turns on.
Selecting this operating mode, the ventilation speed is limited to a much lower value and the set temperature is
automatically adjusted as follows:
- reduced by 1° C after one hour and a further degree after 2 hours in the heating function.
- Increased by1°C after one hour and a further degree after 2 hours in the cooling function.
maximum ventilation speed
Keep the maximum ventilation speed button.
When the function is activated, the relative symbol on the display turns on.
With this operating mode, maximum power is obtained immediately both in heating and cooling.
Once the desired ambient temperature has been reached, we recommend selecting one of the other 3 operating modes to achieve greater thermal and acoustic comfort.
By pressing the + and - Temperature keys together for 3 second, this activates the local block of all the keys.
This is confirmed by the fact that the word bL is displayed.
The user is prevented from using all the adjustments and pressing any key and the display shows bL. The keys are unlocked by repeating the sequence.
heating / cooling
Press and hold the Heating / Cooling key for about 2 seconds to switch the operating mode between heating and cooling.
This is reported by the fact that the 2 symbols, active heating or active cooling, turn on.
In heating mode, the symbol is ON with setpoint higher than the room temperature, both OFF with lower setpoint.
In cooling mode, the symbol is ON with setpoint lower than the room temperature, both OFF higher with setpoint.
In the versions with 4 pipes, with the automatic heating/
cooling adjustment on, if the 2 symbols turn on simultaneously, this means that the setpoint has been reached (neutral band).
If one of the 2 symbols is flashing, this means that the (hot or cold) water temperature has not been reached and the fan stops until the temperature reaches a value that is suitable to meet the request.
alarms
keys lock
After 20 seconds from the last action the panel brightness is reduced on purpose to increase comfort at night and the display shows the room temperature.
If the level of brightness still tends to cause a nuisance, it is possible to turn off the display completely.
With the panel off, press and hold the + key for 5 seconds until the message 01 appears.
With the - key, move the value to 00 and wait for 20 seconds to verify the correct setting.
E1
Ambient temperature probe failure (AIR).
E2
Problem affecting the fan motor (for instance a jam due to foreign bodies, a rotation sensor failure)
E3
Failure affecting the water temperature probe of the versions with 2 pipes (H2) located in the main coil. (Check that the installed probe is of the 10 kȍ type)
E5
Failure affecting the cold water temperature probe of the versions with 4 pipes (H4).
The flashing of one of the 2 symbols indicates that the water temperature (hot or cold) is not satisfied and causes the fan to Stop.
6 - CONTROL
Setting automatic cooling/ heating regulation system For use by the installer
When set to this condition the control can automatically choose between cooling or heating, excluding the normal manual selection.
This setting is particularly useful for the 4-pipe versions.
This regulation system can only be activated by an authorised installer or qualified technician.
To activate this function, keep the sum./ win. button (ref. A) pressed for 10 seconds until of the cooling symbols (ref. C) and heating (ref. B) light up simultaneously.
To return again to the manual cooling only or heating only condition press the sum/win button (ref. A) for 10 seconds until of the cooling symbols (ref. C) and heating ( ref. B) switch off.
Press the button again to select the winter function.
Check the functioning of the heating symbol (ref. B) (alight when the setpoint is higher than the room temperature, both switched off when the setpoint is lower).
Press the sum/win button once to select the summer function.
Check the functioning Check the functioning of the cooling symbol (ref. C) (alight when the setpoint is lower than the room temperature, both switched off when the setpoint is higher).
This selection will be maintained even if there is a power black -out.
Setting CP presence contact input
At the closing of the CP contact, connected to the input (ref.A), the card is placed in stand-by, the display of the control is turned off and at the pressing any key the symbol flashes.
The input cannot be connected in parallel to one of another electronic board (use separate contacts).
A
B C
offset adjustment of ambient temperature probe
For use by the installer
The temperature probe is located in the bottom part of the appliance, it may sometimes occur that the measurement differs from the actual temperature.
Using this feature, you can adjust the measured value on the display within a range of +/- 10°C in steps of 0.1°C
Use this setting with caution and only after verifying actual room temperature deviations using a reliable instrument!
With the panel off, press and hold down the - key for 5 seconds and then enter the menu that allows you to vary the AIR probe offset on the display (using the + and - keys) from 10 to +10 K in steps of 0.1 K.
After 20 seconds from the last action, the panel switches off and the setting is memorised.
6 - CONTROL
After about 20 seconds from the last action, the panel's brightness is suitably reduced to increase comfort during the night and the ambient temperature is shown on the display.
Maximum brightness is restored by pressing any key.
ON / Standby
The control makes the control of the ambient temperature fully autonomous by setting the setpoint that can be adjusted from 5 to 40°C, one of the 4 speeds and the summer/winter selection.
As it is connected to the water temperature probe inside the coil, it performs the minimum winter function (30°C) and maximum summer function (20°C).