Installation, use and maintenance guide
PIDRA 18
Page
24
ENG
7) To conclude the programming operations simply press the
Menu Button
several times to exit the box until the initial screen will
appear.
ATTENTION: The appliance ignores any ON or OFF command programmed with a value of 00:00
.
Consequently if you do not wish to use an ON or OFF time setting simply set a value of
00:00
. The appliance ignores
any ON or OFF command if the shut off time is set the same as or before the start up time.
ATTENTION:
In the event of a programmed cycle on always ensure that the brazier is clean. Failure to clean the brazier can reduce
and/or affect the life of the spark plug as it would be subjected to high temperatures due to poor cooling. It is
recommended to set ON/OFF cycles times lasting no less than 2 hours, in order to save energy and for the proper
operation of the appliance.
Enabling the programmed cycles:
Back in the initial screen, to enable the appliance to carry out the ON/OFF cycles as programmed it is necessary to press the
Clock
Button
. The image of a clock will appear on the main screen:
The programmed cycles are now enabled.
When the programmed cycles are enabled (a clock symbol appears on the display) it will not be possible to use an
additional chronothermostat. The appliance will strictly follow the programmed ON/OFF times. No request for heat by
the system, a puffer or a domestic hot water boiler will be considered by the appliance if it is outside the programmed
time interval.
Disabling the programmed cycles:
To disable the appliance from carrying out the programmed ON/OFF cycles press the
Clock Button
once again. On the display the
clock symbol will disappear. This operation disables the weekly program that has been set by the user but does not delete or reset
the times.
Resetting the programmed cycles:
Moreover, it is possible to reset, in other words delete, all the programmed cycles entered by the user by holding down the
Clock
Button
in the initial screen for approx. five seconds. The words
CLEAR TIMERS
will appear
momentarily on the screen.
Do not release the button until the text CLEARED appears on the screen. Only the appearance of the words CLEARED
signal that the previously entered programmed cycles have been deleted. When the programmed cycles are active the
operating level at start up, that is the combustion power, will be the same level set before the last time the machine was
shut off: that is, only if it was a programmed shut off, not if the machine was shut off by means of a manual action.
Manual shut down can only be carried out with the programming disabled. If after a manual shut off the programmed
cycle re-enables, at the next programmed start up the appliance will be on the 1st combustion power level.
When is it important to use the CHRONO function?
In systems configured like the diagram on the right, where the appliance is connected
directly to the system, without the use of external chronothermostats. In this case it is
necessary to set the hour programs to prevent the appliance from being stressed by
uncontrolled ON and OFF cycles. In addition we recommend using the generator in AUTO
mode to activate the automatic modulation based on the target temperature setting.
If the dwelling is fitted with zone valves, with this type of installation, it is mandatory to
deactivate the valves by opening them completely.
Consequently the dissipation of heat, at least equal to or greater than the quantity of heat
generated by the appliance and transmitted to the water when running at the minimum
power level must be guaranteed at all times.
6.5 LEVEL: OPERATING LEVEL SETTING
The appliance must be energised and the I/0 switch in position “I".
Your appliance is delivered with an excellent program installed that favours combustion efficiency; the program is called
LEVEL 1
.
However, if you are using pellets with a higher than normal incidence of residues after combustion in the brazier, it is possible to
select alternative levels:
LEVEL 2
is an operating program that accelerates the speed of the smoke suction unit in proportion to all the combustion
power levels. This level must be set when the user notices a weak, high and very dark flame. Attention: this
modification does not authorise the use of below-standard pellets, or no vacuum in the flue outlet.
