9
x
Hydraulic system connection
FA ROTEX HPSU monobloc compact • 09/2017
61
9
Hydraulic system connection
WARNING!
High temperatures can occur in the solar stor-
age tank. Therefore, sufficient scalding protec-
tion must be included when the hot water
system is installed (automatic hot water mixing
device).
To avoid heat losses due to gravity flows, the ROTEX
devices can be optionally equipped with plastic non-
return valves (
16 50 70
). These are suitable for
maximum operating temperatures of 95 °C and for
installation in all heat exchanger connections on the storage
tank side (except heat exchangers for pressurised solar system
charging).
Suitable non-return valves must be installed in the building for
components connected to the heat exchanger for pressurised
solar system charging.
The system diagram below is an example, and is never
a substitute for careful system planning. Please visit the
ROTEX website for more diagrams and further informa-
tion on electrical connection.
Fig. 9-1
ROTEX HPSU monobloc compact (all types) with DrainBack solar
(key, see tab. 9-1)
E
C
V
PWT
10
9
P
t
DHW
M
A
B
AB
M
B
A
AB
4
MIX
MK1/MK2
H
1
H
2
P
MI
t
MI
M
5
P
Z
2
2
6
8
7
3
DHW
BUxx
VS
SV
7
7a
1
CW
FLS
T
V
T
K
SK
RPS4
3UVB1
3UV DHW
RoCon M1
P
S
T
R
RoCon mb
t
AU
MAG
SAS1
t
AU