ID.: 17-16-20-2976-06 | 6.2017
18
CAUTION
Because different materials are used on the pipe installation, all connections on the
device (cold and hot water, circulation, heat conductor) have to be in galvanic
isolation; otherwise corrosion of connections can occur on the inner side of the
buffer tank for DHW. We recommend placing galvanic isolators made of red brass
the length of at least twice the diameter of the pipe on the connections.
CAUTION
The buffer tank for DHW is intended for storing drinking water, this is why the water
has to be in accordance with the national regulations on drinking water in force;
otherwise, damage to the device and a termination of the warranty can arise.
1
Closing valve
5
Expansion tank
2
Pressure reducing valve
6
Charging pipe
3
Check valve
7
Circulation pump
4
Safety valve
8
Device generator
1 2 3 1
4 5
6
1
7
3
1
1
8
Picture 7: Connecting the device to the water supply
Dimensions of the expansion tank:
Adjusting the safety valve [bar]
6
System pressure [bar]
3.0
3.5
4.0
Volume of buffer tank for DHW [L]
Expansion tank [L]*
200
5
8
12
270
8
8
12
* The actual size of the expansion tank has to be defined by the installer/design engineer
according to the extent of the system the device will be installed in.
CAUTION
When installing the device, an expansion tank has to be installed as well.
CAUTION
The inlet pipe of the device has to be fitted with a safety valve with a nominal
pressure of 0.6 MPa (6 bar) which prevents pressure raising in the buffer tank for
DHW more than 0.1 MPa (1 bar) above the nominal pressure.
