System Example 4 - Viessmann VITOSOIC 100 Installation And Service Instructions Manual

System example 3
Control unit, freshwater module
qP
qE qW
ID: 4605030_0906_2

System example 4

DHW heating with solar retrofit system
There are two control versions for this
system example:
■ Version A:
Anti-stratification with sensor S3 in
DHW cylinder 2 (existing)
Differential temperature control
■ Version B:
Transfer with sensor S3 in DHW cylin-
der 1 (retrofit)
Control via thermostat function
(cont.)
N
?
M
1~
qQ
If it is possible to position the tempera-
ture sensor for the DHW circulation
transfer in the existing cylinder, we rec-
ommend version A.
Main components
■ Viessmann solar collectors
■ Mono-mode DHW cylinder (existing)
Preparing for installation
L N
qR
L
N
?
230 V / 50 Hz
25