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AST 14 C 257/00
Zone 4:
Parameter P70 setting to enter the thermoregulation curve (with an external probe)
or the operating range (without an external probe). Regulation via parameter P71 of
the fictitious ambient temperature (with an external probe) or the set-point flow
value (without an external probe) according to the selected range. Parameter P39
displays the calculated flow temperature, and parameter P40 the current one
detected by the boiler probe
N.B. With simultaneous heat requests from different zones, the boiler flow set-point
corresponds to the highest value. The flow set-point requested by the mixed zones is equal
to the value calculated by the thermoregulation plus the value of parameter P75 (default
5°C).
When DHW is withdrawn, any heat requests are interrupted and resumed only at the end of
the withdrawal.
If the boiler board is on OFF or SUMMER ONLY, the heating functions are not enabled.
Solar setting
The solar board is used to control complex solar panel systems when two solar elements
(pump + diverting valve) are involved, or when the multifunction relay is used to control a
zone of the system.
With instantaneous type boilers (P3=1), the only “complex” solar panel system is the ibe
that heats the solar accumulation in a forced circulation system via the pump PS and the
boiler is integrated instantly for DHW, via the diverting valve VM.
The system layout is shown below.
SOLAR UNIT
MAINS WATER
SUPPLY
Содержание FORMENTERA KC 24
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