Viessmann VITOSOLIC 200 Installation And Service Instructions Manual page 137

Additional function for DHW heating
Systems with additional Viessmann control units
■ Connection of the transfer pump to R3
or R5 (subject to the selected system
and hydraulic type, see from page 94).
■ A resistor simulates a DHW tempera-
ture of approx. 35 ºC to the boiler con-
trol unit.
AC 250V 0.8 A
R1-R6
R7
AC 250V 4(2) A
A
T40
IP20
230V ~ 50-60 Hz
P = 3VA
B
C
D
A Wiring chamber of the solar control
unit
B Contactor relay
C Resistor (on site):
PTC: 560 Ω
NTC: 8.2 kΩ
Grid
Réseau électrique
Red eléctrica
27 30 31 32 33 34 35
N N
M
1~
F
E
(cont.)
T6.3A
230V
L
N
N N N
L
N
?
D To the boiler control unit
E Cylinder temperature sensor of the
boiler control unit
F Transfer pump
Function description
137