Samson TROVIS 5500 - 8 System-Wide Functions; Automatic Summer;Standard Time Switchover; Frost Protection

EB 5573-1 EN 99
System-wide functions
8 System-wide functions
8.1 Automatic summer/standard time switchover
The time is automatically changed on the last Sunday in March at 2.00h and on the last
Sunday in October at 3.00h.
Functions WE Conguration
Summer time 1 CO5 > F08 - 1
Note:
The automatic summer/standard time switchover can also be programmed in the
Time/date menu. Refer to section2.4.
8.2 Frost protection
Frost protection measures are taken when the outdoor temperature falls below 'Limit'. The
switching differential to cancel the frost protection measures is always 1°C.
Restricted frost protection: frost protection measures are taken only when all heating circuits
in the system are in stand-by mode. The circulation pumps are automatically switched on and
their ow temperature set points are adjusted to 10°C. The circulation pump in the DHW cir-
cuit is automatically switched on only when the stand-by mode has been adjusted at the rota-
ry switch in all heating circuits. Nevertheless, the storage tank is always recharged to 10°C
if the storage tank temperature falls below 5°C.
Frost protection with highest priority: the heating circuit circulation pumps are always
switched on automatically. The ow temperature set points of all heating circuits currently in
stand-by mode are set to +10°C. In the DHW circuit, the circulation pump is always activat-
ed. If the storage tank temperature falls below +5°C, the storage tank is recharged to
+10°C.
Functions WE Conguration
Frost protection
3.0°C
CO5>F09 - 0: Restricted frost protection
CO5>F09 - 1: Frost protection with highest
priority
Limit: –15.0 to 3.0°C
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