Viessmann VITOSOLIC 200 Installation And Service Instructions Manual page 65

System example 9
Required settings on the solar control unit
Main menu
Operator code
Solar options
■ System (see page 99)
■ Hyd. Type (see page 99)
Set solar values
■ Tcylset (set cylinder temperature)
■ Tcyl2set (set buffer cylinder temperature)
■ ΔTon (start temperature differential for solar circuit
pump R1 eE)
■ ΔToff (stop temperature differential for solar circuit
pump R1 eE)
■ ΔT2on (start temperature differential for solar circuit
pump for buffer cylinder heating R4 eT)
■ ΔT2off (stop temperature differential for solar circuit
pump for buffer cylinder heating R4 eT)
■ Priority Cyl1
■ Priority Cyl2
Solar contractor
■ t-stop (duration of the pump runtime interruption)
■ t-circ. (break intervals)
■ ΔT Col
During the t-stop time the collector temperature
must rise by the value of ΔT Col to change over to
heating the consumer with priority 1.
System options
■ Add. fct.
(Additional function for DHW heating)
■ ΔT Fct6 (ΔT function for switching the three-way
diverter valve R6 rZ, function block 2, see
page 112)
■ ΔT Fct5 (ΔT function for switching the transfer pump
R5/R7 qT, function block 3, see page 112)
Set system values
■ ΔT6on (start temperature differential for R6)
■ ΔT6off (stop temperature differential for R6)
■ ΔT7on (start temperature differential for R5/R7)
■ ΔT7off (stop temperature differential for R5/R7)
(cont.)
System examples
Delivered Setting
condition
0000
1
1
60 °C
60 °C
8.0 K
4.0 K
8.0 K
4.0 K
1
2
2 minutes
15 minutes
2 K
No
No
No
5.0 K
3.0 K
5.0 K
3.0 K
0200
3
2
Yes
Yes
Yes
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