SAT102
heat interface unit
6
Operating Cycles
Domestic water generation
When the domestic hot water is activated by a water outlet (user’s tap)
being opened, detected by the domestic water flow meter, the electronic
controller regulates the modulating valve opening so as to adjust the
temperature detected to the selected set point value.
At the end of the drawing-off procedure, the modulating valve is fully
closed.
The active domestic water cycle is signalled by the yellow DHW LED
which comes on.
The domestic water temperature can be set using trimmer P1 and is
shown on the LCD display.
Optional functions
When activating or de-activating the optional functions the electricity
supply must always be turned off.
Domestic water generation
Domestic water preheating function
The function is enabled by setting dip switch 5 to the ON position.
During periods when the domestic water cycle is not used, if the
DHW probe detects a temperature 10°C below the SET value, the
controller partially opens the domestic water modulating valve for the
time required (max. 5 mins) to bring the temperature detected up to a
value 5˚C below the set point value.
The domestic water preheating function is signalled by the flashing
yellow DHW LED.
Safety and alarms
Error codes associated with faults signalled by the lighting up of the
FAULT LED are also shown on the display.
Domestic water probe fault
Error code: 6
Removing the fault
Normal operation will be restored once the probe has been replaced.
Incorrect switch setting
Error code: 79
Removing the fault
Restore correct switch setting - see page 5
79
48
P2
P1
5
ON
48
6
