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EQJW146F002 EN
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
Configuration
Summer time
1
CO5 > F08 - 1
The automatic summer/standard time switchover can also be programmed in the Time/date
menu. See 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 flow 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 flow 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
Configuration
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
Note
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