Minimum Temp. For Solar Absorber Primary Source - Viessmann VITOTRONIC 200 Service Instructions Manual

Parameter group System definition

7033 Minimum temp. for solar absorber primary source

The solar air absorber is only used as the primary
source if the absorber temperature exceeds the set
value.
Conditions for using the solar air absorber as primary
source:
Temperature differential solar air absorber
■
> "Start hysteresis solar air absorber 7031"
■ Absorber temperature > "Minimum temp. for solar
absorber primary source 7033"
■ Primary inlet temperature is within the valid range.
7034 Average ground temperature in summer mode
Max. temperature ice store in summer mode: See
"Min. runtime to suppress summer mode 7035".
Set this value lower than max. primary inlet tempera-
ture minus "Solar absorber hysteresis 7032".
7035 Min. runtime to suppress summer mode
Particularly in summer, high temperatures in the ice
store lead to heat losses to the ground and conse-
quently to frequent reheating via the solar air absorber.
To avoid this, the maximum temperature of the ice
store is reduced in summer mode.
Summer mode is switched on under the following con-
ditions:
■ On a single day, the heat pump was operating to pro-
vide central heating for less than the "Min. runtime
to suppress summer mode 7035" in operation.
"Calendar week, start summer mode, ice store
■
7039" has been reached.
■ The "Last calendar week for summer mode 7036"
has not yet been reached.
7036 Last calendar week for summer mode
After the set calendar week, summer mode is no lon-
ger switched on. The ice store is heated up to the max-
imum temperature via the solar air absorber.
206
≙
Setting 1 0.1 °C
ice store
–
!
Note
The max. primary inlet temperature can only be
changed by a heat pump installer certified by
Viessmann.
≙
Setting 1 0.1 °C
!
Setting in min
!
Setting in calendar weeks
!