BioClass HC
34
14
ADDITIONAL FUNCTIONS
BioClass HM
boiler includes the following additional control functions. They only may be modified by
a person with sufficient technical knowledge of the meaning of each parameter. Any inappropriate
setting of a parameter of
“Technical Menu”
can cause a serious malfunctioning of the boiler and could
cause damages to people, animals or things.
14.1
Time of the automatic pellet feeding cycle
In the boiler connected to the fuel suction system, using the
P.22
parameter, the activation cycle
time of the system can be adjusted.
14.2
Reset default values (P.24)
In case any parameter is wrongly set or if the boiler works incorrectly, all the original values of the
parameters can be reset automatically by selecting "Yes" in
P.24
parameter.
14.3
Pumps anti-lock function
This function prevents the boiler circulating pumps from locking if they have been out of use for a
long period of time. This system remains enabled while the boiler is plugged into the mains.
14.4
Anti-frost function
This function protects the boiler from freezing during cold weather periods. If the boiler
temperature drops below 6 ºC, the heating pump will start running until the boiler temperature
reaches 8 ºC. If the boiler temperature continues to drop below 4 ºC, the burner will start running,
in order to heat the installation. It will continue working until the boiler reaches 15 ºC. This system
remains on standby while the boiler is plugged into the mains.
14.5
Boiler pressure sensor function
This function prevents boiler failure caused by a low or high water pressure level in the boiler. The
pressure is detected by a pressure sensor and its value appears on the control panel display (in the
"
User Menu”
). When the pressure drops below the pressure set at
P.19
parameter (by default 0.5
bar), the electronic controller locks out the boiler functioning and displays
E-19
alarm code on the
screen. When the boiler pressure exceeds 2.5 bar,
E-28
alarm code is displayed on the screen,
warning about the excess of pressure. When it occurs repeatedly it is recommended calling the
nearest
Technical Assistance Service
and draining the boiler water until the pressure is between 1
and 1.5 bar.
