LIBRETTO RC21.11 - Page 43

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the curve values are the higher the maximum
delivery temperature will be.
As shown in picture 12, the set limits of
delivery temperature are 20°C min and 85°C
max. The curve number 9 is the steeper:
when external temperature is 0°C the delivery
maximum is 85°C.
• OTC CURVE OFFSET
It is the vertical offset of the climatic curve,
through which the calculated delivery
temperature can be corrected. Range
-15÷15°C (default 0°C).
• SYSTEM INERTIA
It is a parameter regulating the reaction speed
of the regulation algorithm, to be associated
to the inertia or to the dimension and type of
building and heating system. Range 1÷20,
where:
5 system with little heat inertia
10 system of normal size with
radiators (set by default)
20 system with high heat inertia
(underoor heating)
• MIN SET HEATING
It is the minimum temperature allowed as
delivery temperature. This lower limitation,
which can be dened by user, is used both
in modulation and xed delivery and it is
automatically adapted at the rst link. It
depends on UC and it has a range 0÷99°C
(default 20°C).
• MAX SET HEATING
It is the maximum temperature allowed as
delivery temperature. This upper limitation,
which can be dened by user, is used both
in modulation and xed delivery and it is
automatically adapted at the rst link. It
depends on UC and it has a range 0÷99°C
(default 90°C).
6.3.9 PARAMETER POWER GRAPHS
The Submenu gives access to the modication of
settings concerning the graphs seen in paragraph
INFORMATION relating to HEATING. The following
parameters can be modied here:
• POWER EQUAL TO 100%
It is the power in kWe, equivalent to a
modulation level percentage of power at
100%. Range 0÷100 kWe (default 28 kWe).
• POWER EQUAL TO 50%
It is the power in kWe, equivalent to a
modulation level percentage of power at 50%.
Range 0÷100 kWe (default 16 kWe).
• POWER EQUAL TO 0%