Drazice OKC 250 NTRR Operation And Installation Manual - Page 14
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2.2.2 EXAMPLE OF CONNECTING A HEATER WITH SOLAR COLLECTORS AND A GAS
BOILER
Connecting a heater to a boiler heating circuit:
The heater is placed on the ground, next to the heating source, or in its vicinity. The heating circuit is
connected to marked inputs and outputs of the heater exchanger; the deaeration 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.
Figure 5
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