33
A = front cover of the electrical box
B = plastic spring to open the electrical box
C = Direction to open the electrical box
D = Switches for the functional setting of the boiler
Figure 21 - Control board and junction box board details
7 - INSTALLATION - Indirect storage tank connections
7.2 - Indirect water
heater priority selection
The boiler is factory set for DHW priority. This
means that the boiler will stay in DHW mode
until the capacity of the indirect water heater
reaches temperature. In some cases this will
result in house cooling because the central
heating function was stopped by the DHW
priority mode. Once the indirect water heater
is satisfi ed the boiler will automatically return
to central heating.
Priority selection is a functionality that toggles
between CH and CHW when they are both
active at the same time. The priority selection
is set with the
dP
(DHW priority) parameter in
the “installer menu” (see section 12.17)
Each value set into the
dP
parameter will
correspond to the minutes delay the boiler
toggles between CH and DHW demand.
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