Display
88
hi
lo
Table 6 - Electronic control unit indications
5.2
MAIN MENU
To enter the main menu, switch on the con-
L6
trol unit by holding the push button
L5
the main menu, the screen indicates by de-
fault the temperature of the water in the
boiler. Pushing the button
5.3
SETTING THE TEMPERATURES
The variation of the settings of the control
L6
L1
unit can be done only by experienced tech-
L2
L3
L5
nicians.It is recommended not to change the
L4
L6
L1
L6
L2
L3
factory settings if it is not necessary for the
L5
L5
L4
• The button
selects the temperature to be changed
• The buttons
and
• To save the data, wait for about five seconds or scroll all the parameters with the button
Symbol
Description
A04
P1 pump thermostat
A05
Thermostat valve
A07
P2 pump thermostat
Table 7 - Standard settings of the main menu of the FDG control unit
5.4
FUNCTIONS OF THE UNIT (STK)
Basically, the electronic unit checks the
working of the heating system; in addition,
it has also other auxiliary and safety func-
tions.
MAIN FUNCTION - The unit reads the water
temperature of the boiler, when it exceeds
the set temperature, the unit starts the in-
ternal circulation pump P1 and then the
circulation pump P2 of the heating system.
Temperature
Detector in short circuit or T > 100 °C
Temperature detector disconnected
L6
L5
L1
. In
L2
L3
L4
will show the
L1
L2
L3
L4
allow to change the value
Standard
value
30 °C
45 °C
55 °C
Function
L1
L2
L3
L4
values of the set temperatures as thermo-
stat to activate the P1 pump, the P2 pump
and other external devices connected to the
thermal cooker.
working of the heating system. The varia-
tion of the set temperatures may be done in
the main menu.
Correspondent
led
P
V
T, P
When the temperature goes under the set
value, the P2 pump stops, allowing the tem-
perature to go up again.
SECONDARY FUNCTIONS - When the tem-
perature exceeds the set values A05, the cor-
respondent clamps activate (VALVE, VALV.)
and then the potential external connected
devices. According to the installation, they
could not deal with the normal use of the
133
L6
L1
L2
L3
L5
L4
Corresponded
contacts
PTC
VALVOLA
CP, PIR