Number Of Lag Heat Pumps - Viessmann VITOTRONIC 200 Service Instructions Manual

701F Effect of OM changeover to ventilation
The setting value results from the combination of se-
lected bits.

7029 Number of lag heat pumps

Number of lag heat pumps with cascade control via
LON
7030 Select primary source
Value Meaning
"0" Geothermal collectors/geothermal probes
"1" Ice store or solar air absorber
Note
AM1 extension and Vitosolic 200 are required
for ice stores. Therefore observe "External
extension 7010" and "Type solar control
unit 7A00".
7031 Start hysteresis solar air absorber
The solar air absorber is only used as a primary
source if the differential between the absorber and ice
store temperature is greater than the set value.
Other prerequisites:
Absorber temperature > "Minimum temp. for solar
■
absorber primary source 7033"
Primary inlet temperature is within the valid range.
■
7032 Solar absorber hysteresis
Hysteresis for starting and stopping the solar air
absorber as primary source, relative to the set limits for
the primary inlet temperature. This starts the primary
source ice store prior to the limits for the primary inlet
temperature being reached and the compressor shuts
down.
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"
!
(cont.)
/
!
Value
"0"
"1" to
"4"
!
!
Setting 1
!
■ Absorber temperature > "Min. inlet temperature
primary circuit 5016" plus "Solar absorber hyste-
resis 7032"
Absorber temperature < "Max. inlet temperature
■
primary circuit 5015" minus "Solar absorber hys-
teresis 7032"
Setting 1
ice store
–
Parameter group System definition
Meaning
No lag heat pump
Number of lag heat pumps
≙
0.1 K
≙
0.1 K
205