Installation, use and maintenance guide
PIDRA 18
Page
28
ENG
6.8 T.AMBIENT: CONTROLLING THE ROOM TEMPERATURE
The appliance must be energised and the I/0 switch in position “I".
This function enables you to control, through the use of a sensor PT 100 (optional) to be connected to pins 1 and 2 of the te rminal
block CN5 on the electronic board (see para. 11), the temperature of the room where the sensor will be placed.
ATTENTION:
If the optional sensor is not connected to the appliance or if it is interrupted, it will not be possible to view and
consequently activate the T.AMBIENT function.
When this function is activated the appliance will automatically control the ON/OFF cycles according to the temperature set by the
user.
The TAMBIENT function can be activated by proceeding as follows:
1) Quickly press the
Menu Button
until the following screen appears:
After a few seconds the following screen will appear on the display:
2) Press one of the two
Scroll Buttons
and the following screen will appear (Select ON to activate).
3) Press the
Menu Button
several times, to confirm and exit the screen, until the initial screen appears.
When
TAMBIENT ON
is activated, a house symbol with the temperature detected by the sensor next to it will appear on the display
as well as, in the bottom right corner, a thermometer symbol with the target room temperature next to it, as illustrated here:
The target room temperature can be changed at any time from the initial screen by simply pressing the
Scroll Buttons
.
To
deactivate
the
TAMBIENT 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 if it is interrupted, it will not be possible to
activate this function.
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. If the startups are frequent and repeated it is possible that the
generator will fail to start and the following error message appear: “Failed start – Clean burner”. The appearance of this
message is not attributable to a product defect but is caused by a brazier that requires cleaning as described in this
manual in chapter entitled: “Troubleshooting – Possible Causes – Solutions”.
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 room will be considered by the appliance
outside the programmed time interval and the texts WAIT TIME or NO PROGRAM will appear on the display.
ATTENTION: If an external chronothermostat is connected to the appliance, the appliance will follow it exclusively. No
request for heat from the room will be considered by the appliance if the external chronothermostat does not give
consent and the text WAIT TIME appears on the display.
ATTENTION: The appliance controls the room temperature sensor with a 2°C hysteresis, so if for example the user
sets a target temperature of 22°C when it reaches this temperature the appliance takes its power to the minimum, then
switches off when the temperature reaches 24°C. It will only restart when the temperature drops below 20°C at the
power previously set by the user.
ATTENTION: Do not place the room temperature sensor near any heat or cooling sources that could at any time affect
the temperature detected by the sensor.
When is it important to use the TAMBIENT function?
In systems configured like the nearby diagram, where the appliance is connected directly
to the system.
Содержание PIDRA 18
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