Expobar ZIRCON MINI 1GR CONTROL Service Manual page 37

MULTI-BOILER PROGRAMMING
Setting group temperature
Fig. 31
Fig. 32
Reset parameters to factory default
Fig. 33
Thermostat alarms
Fig. 34
Fig. 35
To adjust the group temperature maintained by the thermostat, follow the instructions
below with the machine turned on and the thermostat connected:
Brie y press the
(see g. 31).
Immediately and brie y press the
will be displayed (see g. 32).
Raise or lower the temperature value using the
Note:
i
The digital thermostat will exit automatic programming mode 3 seconds
after the last button press.
If the thermostat's operating parameters are lost, or in the case of abnormal group
temperature, reset the system to the factory defaults.
To reset the parameters:
Turn off the machine, press and hold down the
machine at the power switch.
Release the button when the system displays the "PrS" message (see g. 33).
Turn the machine off and on again at the power switch to restart the thermostat.
If the temperature gauge in the group's boiler has short-circuited, the system will
display the "A1" error message (see g. 34).
If the temperature gauge cable is disconnected, the system will display the "A2"
error message (see g. 35).
button. The thermostat will display the "PrG" message
button. The programmed temperature
ZIRCON
and buttons.
button, then turn on the
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