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2.4 CONNECTION OF STORAGE TANK TO HOT WATER HEATING
SYSTEM
It is recommended to install stop valves on the heating water inlet and outlet (for possible
dismantling of the storage tank). The valves have to be as close to the storage tank as
possible to avoid higher thermal losses
The heating circuit is connected to marked inputs and outputs of the storage tank exchanger;
the deaerating valve is mounted in the highest place. It is necessary to install a filter into the
circuit in order to protect the pumps, the three-way valve, and 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 HSW using a three-way valve, always follow the installation
instructions of the three-way valve's manufacturer.
After connecting the storage tank to the water supply, the hot water heating system, the
electric network, and after testing its safety valve (based on the valve manual attached), the
storage tank may be put into operation. Before opening the power supply, the tank must be
filled with water. The process of first heating must be executed by licensed professional who
has to check it. Both the hot water outlet pipe and safety armature parts may be hot.
Example of connection of the storage tank to water and heating system
Storage tank
Figure 7
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