Installation, use and maintenance guide
PIDRA 18
Page
27
ENG
4) Press the
Scroll Buttons
to set the minimum activation temperature for the sensor. The sensor is installed in the central part of
the boiler and commands the appliance to start up as the boiler tube is exhausting the available heat. The setting range is from
45°C to 65°C.
5) Confirm the selection by pressing the
Degrees Button
and the following screen will appear.
6) Press the
Scroll Buttons
to set the maximum activation temperature for the sensor. The sensor commands the appliance to
shut off as the boiler tube is satisfied. The setting range is from 49°C to 75°C.
The settable temperature will in any case always exceed, by at least 4°C, the temperature setting for ACS T.MIN.
7) Confirm the selection by pressing the
Menu Button.
8) This function requires the setting of daily time bands within which the appliance manages the boiler tube. The Chrono screen
will appear so you can program the weekly schedule for managing the boiler tube:
ATTENTION: If an external chronothermostat is connected to the appliance, it is not necessary to program any operating time band
as the appliance will follow the cycles set in the external chronothermostat. Consequently simply press the
Menu Button
several
times to exit the screen, until the initial screen appears.
After a few seconds the following screen will appear on the display:
9) To program the daily ON/OFF cycles repeat all the instructions starting from point 2 in paragraph 6.
10) To conclude the programming simply press the
Menu Button
several times to exit the screen, until the initial screen
appears.
Now the operating status of the appliance appears on the screen, the shower symbol will appear and next to it the temperature
detected by the sensor.
To
deactivate
ACS SUMMER function simply repeat operations 1 and 2 in this paragraph, but this time select the OFF command.
The function will be disabled immediately.
ATTENTION:
If the optional sensor is not connected to the appliance or is interrupted, it will not be possible to activate this function.
ATTENTION
The boiler tube must have at least a 300 litre capacity.
Pay special attention to the number of ON/OFF cycles that the appliance is subjected to with this function. It is
recommended not to exceed three ON/OFF cycles.
ATTENTION: If the programmed time schedule is enabled (a clock symbol appears on the display) the appliance will
follow exclusively the preset ON and OFF times. No request for heat from the boiler tube will be considered by the
appliance outside the programmed time interval and the texts WAIT TIME or NO PROGRAM will appear on the display
(see para. 6.10).
ATTENTION: If an external chronothermostat is connected to the appliance, the appliance will follow it exclusively. No
request for heat from the puffer will be considered by the appliance if the external chronothermostat does not give
consent and the text WAIT TIME appears on the display (see para. 6.10).
ATTENTION: When ACS SUMMER is set the appliance will start up and shut off autonomously and only according to
the temperature setting of the boiler tube and the actual temperature detected.
When is it important to use the ACS SUMMER function?
In systems configured like the nearby diagram, where the appliance is connected
directly to a domestic hot water boiler tube and to the system.
Using this function the generator starts up automatically when the boiler tube is
running out of heat and only in the programmed time bands.
Once the boiler tube is satisfied, the appliance does not supply heat to the system
and shuts OFF.
