5.1
HOW IT WORKS
The control unit rules the devices of the
thermal cooker and other external devices
installed in the heating system. Basically,
the control unit measures the temperature
of the water in the boiler and according on
the set temperatures activates the devices to
whom it is connected. In addition, the con-
L6
L1
L2
L3
L5
L4
Picture 30 - FDG control unit
L6
L1
L2
L3
L5
L4
Push
button
Switch ON/OFF
Lower set temperature
Table 4 - Control unit push buttons
Led indicator
P1
P
VALV
V
T
P2
P
OFF
Table 5 - Led of the electronic control unit
5. CONTROL UNIT
L6
L5
L6
L5
Function
T > A04 - P1 pump (internal circulation) working
T > A05 - cVALVE ON contact fed – OFF interrupted
T > A07 - Deactivation external boiler
T > A07 - P2 pump (heating system) working
Control unit in stand-by
(STK)
trol unit has other safety and control func-
tions.
For some versions, it is possible that the
control unit could be slightly different from
what it is reported in this manual but basi-
cally it is equivalent.
L1
L2
L3
L4
L1
L2
L3
L4
Push
button
Heighten set temperature
View set temperature
Function
132
Function