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2.5
EXAMPLES OF TANKS CONNECTION
Connecting a tank to the heating circuit:
The tank is placed on the ground, next to the heating source, or in its vicinity. The heating circuit shall be
connected to marked tank exchanger inputs and outputs, and bleeder valve installed at the highest point.
It is necessary to install a filter into the circuit in order to protect pumps, three-way valve, backflow flaps and
the exchanger from sedimentation. It is recommended to flush the heating circuit before the assembly. All
wiring connections must be properly insulated from heat.
If the system works with priority heating of TUV (warm utility water) using a three-way valve, always follow
the installation instructions of the three-way valve’s manufacturer.
Connecting the tank to a Hot Water Distribution
Cold water shall be connected to an inlet marked with a blue ring and writing “HSW INLET”. Hot water shall
be connected to an outlet marked with a red ring or writing “HSW INLET”. If the hot sanitary water (HSW)
distribution is equipped with circulation circuit, it shall be connected to the outlet marked with
“CIRCULATION”. For potential drain of the tank, the HSW inlet has to be provided with a “T” plumbing with
a drain valve. Each individually lockable tank must be on the cold water inlet provided with a stop gate, test
tap, safety valve with a reverse flap and a pressure gauge.
An example of a group tank connection for steady hot water consumption from all tanks using
Tichelmann’s method
OV – Heating water
TUV - Hot service water
SV - Cold water
1 - Return valve
C – Circulation
2 – Pump
Figure 17
