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drain of heater, the HSW inlet has to be provided with a "T" fixture with a drain valve. Each individually lockable

heater must be at the cold water inlet provided with a stop gate, test cock, safety valve with a reverse flap and a

pressure gauge.

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 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.