Viessmann VITOCAL 300, Инструкция по установке и обслуживанию

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Should an external heat source be a
part of the system, either set it by
selecting option "
Yes ", or via the sys-
tem configuration (see page 45).
Access
& " System settings "
& " Program "
& " Ext. heat source "
& "Ext. heat source" (" YES "/" NO ")
Standard setting NO
Setting range YES/NO
Priority, external heat source
This setting defines whether priority is
given to heating by the external heat
source or heating by the electric hea-
ter.
Access
& " System settings "
& " Program "
& " Ext. heat source "
& "Priority ext. HS" (" YES "/" NO ")
Standard setting YES
Setting range YES/NO
Temperature limit for operation
Setting of the temperature limit for the
additional operation of the external
heat source. The long-term average
outside temperature must be lower
than this temperature limit for the
external heat source to be enabled.
This start restriction does not apply if
the heat pump is faulty. Access
&
" System settings "
&
" Program "
&
" Ext. heat source "
&
"T limit for operation" (
1
/
!
)
Standard setting 10 °C
Setting range -50 to +50 °C
External heat source
122
Control settings, external heat source
55
92
901
GB