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Functions of the DHW circuit
External DHW demand (Anl 1 to 7)
7.4
This function allows the boiler controller to switch over to the Boiler set point for DHW demand
when the binary input BE4 (WWA) is closed. The thermal disinfection has priority when the ex-
ternal DHW demand and thermal disinfection coincide.
Functions
Modulation feedback K2
DHW demand – active
Parameter
Boiler set point for DHW demand
Note!
In system Anl 7, the binary input BE4 can be used either for modulation feedback, for external
DHW demand or for external change in lag/lead sequence.
48
EB 5474 EN
WE
Configuration
ON
Co2 -> Fb07 = OFF
ON
Co4 -> Fb00 = ON
WE
Parameter level / Range of values
65 °C
PA4 / 20 to 120 °C
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