Samson TROVIS 5431, Mounting And Operating Instructions

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ation of only 3 °C is considered for this
period. The calculated outdoor temperature
therefore changes slower than the measured
outdoor temperature.
In case you have activated this function using
CO1 F05-1, you can choose between two
options: for temperature adaptation only
when the outdoor temperature drops, choose
“1”; for temperature adaptation independent
of the outdoor temperature, choose “2”. Fol-
lowing this, you must determine the function
block parameter ‘Delay’ in a range from 1 to
6
°
C/h.
When the described function has been acti-
vated, the outdoor temperature indicated on
the InFo 1 level is the ‘calculated outdoor tem-
perature’, if you keep the enter key
pressed.
5.3.3 Automatic clock reset summer time/winter time (CO-SYS F03)
When you activate the function block
CO-SYS F03-1, the heating controller auto-
matically resets the clock to change between
summer time and winter time as follows: On
the last Sunday in March, the clock is set
from 2:00 to 3:00 a.m., and on the last
Sunday in October, from 3:00 to 2:00 a.m.
5.3.4 Summer time operation (PA1, CO1 F06)
In summer time operation, the control valve is
automatically closed and the heating pump is
switched off. The controller now reacts only
to drinking water demands. On the display,
you can recognize summer time operation by
the symbol .
The heating controller differentiates between
two different summer time operating modes:
the exclusively temperature-controlled sum-
mer time operation and the temperature-/
time-controlled summer time operation. These
two modes may have an overlapping effect
as follows:
4
The temperature-controlled summer time
is directly activated, when the outdoor
temperature exceeds the parameter ‘Out-
door temperature limit for summer time
operation’ (PA1). When this limit value is
not reached, heating operation immedi-
ately starts up again.
4
The temperature-/time-controlled summer
operation only becomes active, when
CO1 F06-1 has been activated. The func-
tion block parameters connected to this
function block are the following: ‘Start of
the summer period’ and ‘End of the sum-
mer period’ (default 1/6 to 30/9) are
used to determine the time period in
which summer operation is permissible. If
the average daily temperature between
7:00 (a.m.) and 22:00 (10 p.m.) exceeds
the ‘outdoor temperature limit value’
(default 18 °C) on the adjusted ‘number
of days for start’ (default 2 days), summer
operation is initiated on the following
day. Heating operation will not start
again, unless the average daily tempera-
ture drops below the ‘outdoor tempera-
ture limit value’ again on the adjusted
‘number of days for end’ (default 1 day).
EB 5431 EN
39
Functional descriptions