BLUEHELIX MAXIMA
195EN
cod. 3541U630 - Rev. 00 - 07/2020
Room thermostat
B
ATTENTION: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE CON-
TACTS. CONNECTING 230V TO THE ROOM THERMOSTAT TERMINALS
WILL PERMANENTLY DAMAGE THE PCB.
When connecting a time control or timer, do not take the power supply for such de-
vices from their cutoff contacts. Their power supply must be via a direct connection
from the grid or with batteries, depending on the kind of device.
Accessing the electrical terminal block
The terminal block can be accessed by following the instructions given below (fig. 13 and fig. 14). The arrangement of
terminals for the various connections is given in the wiring diagram in fig. 47.
The terminals must be with voltage-free contacts (not 230V).
fig. 13
fig. 14
Terminal block auxiliary input configuration
Table 1- Auxiliary input settings
DHW configuration Parameter b06
b01 = RRT
b06=0 Contact open disables DHW and re-enables it if closed.
b06=1 If the contact is open, it disables heating and displays F50. Contact closed enables heating.
b06=2 The contact acts as a room thermostat.
b06=3
If the contact is open, it displays F51 and the boiler continues to work.
It is used as an alarm.
b06=4
The contact functions as a limit thermostat, if open it displays F53 and deactivates the
request.
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