Download Viessmann VITOCAL 300-G Operating instructions

Parameter group external heat source
Parameter group external heat source
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Coding level 1"
3. "Ext. heat source"
4. Select parameter.
7B00 Enabling an external heat source
"External heat source 7B00"
To enable an additional, external heat
source.
If there is a corresponding heat demand,
the external heat source can also be
started by the heat pump control unit.
Valu Explanation
e
"0"
External heat source is not used.
"1"
External heat source, e.g. oil condensing boiler is enabled.
Note
All other parameters for the external heat
source become visible only when this
parameter has been set to "1".
Delivered condition
Setting
0
0/1
7B01 Priority of external heat sources
"Priority 7B01"
Delivered condition
Setting
1
0/1
Service
Priority of the external heat source over
the instantaneous heating water heater
(on site).
5442 829 GB
Valu Explanation
e
"0"
External heat source has priority.
"1"
Instantaneous heating water
heater has priority.
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