Rotex GCU compact - 8 Hydraulic Connection; Hydraulic System Connection

8 x Hydraulic connection
ROTEX GCU compact - 
45
8 Hydraulic connection
8.1 Hydraulic system connection
WARNING!
To prevent the emission of exhaust gas, before com-
missioning the ROTEX GCU compact, the storage
tank container must be filled up to the overflow mark.
WARNING!
High temperatures can occur in the solar storage tank.
Therefore,
sufficient scalding protection must be
included when the hot water system is installed (auto-
matic hot water mixing device).
CAUTION!
The ROTEX units can also be optionally fitted with
gravity breaks ( 16 50 70) made
of plastic. They
are suitable
for maximum operating temperatures of
95°C. If a heat exchanger is operated at temperatures
g
reater than 95°C, another gravity brake must be
installed in the building.
A selection of diagrams of the most
common systems
is shown be
low. The arrangements shown are only
examples, and are no substitute for careful system
planning. For more diagrams see the ROTEX home-
page.
Short name Meaning
1 Cold water distribution network
2 Hot water distribution network
3 Heating inflow
4 Heating return flow
5 Mixer circuit
6 Circulation
7 Check valve, return valve
7a Non return valves
8 Solar circuit
3UV DHW 3-way distribution valve (hot water/heater)
3UVB1 3-way mixer valve (heater/i
nternal boiler circuit)
&:
&ROGZDWHU
D+: 'RPHVWLFKRWZDWHU
FLS
FlowSensor - solar flow and flow temperature
measurement
H
1,
H
2
... H
m
Heating circuits
MAG Diaphragm expansion vessel
MIX 3-way-mixer with drive motor
MK1 Mixer group with high-efficiency pump
MK2
Mixer group with high-efficiency pump
(PWM controlled)
P
K
Boiler circuit pump
P
Mi
Mixing circuit pump
P
S
Solar operating pump +
P
Z
Circulation pump
RoCon BF Control unit GCU compact
RoCon M1 Mixer circuit control
536 Solar regulating and pump unit
SK Solar panel field
SV Safety overpressure valve
t
AU
Outside temperature sensor
t
DHW
Storage tank temperature probe
t
Mi
Mixer circuit flow temperature sensor
t
V2
Internal mixer sensor boiler circuit
T
K
Solaris collector temperature sensor
T
R
Solaris return flow temperature sensor
T
S
Solaris storage cylinder temp. sensor
T
V
Solaris inflow temperature sensor
VS Burns guard VTA32
Tab. 8-1 Short names in hydraulic drawings
Short name Meaning