Drazice OKCE 125 NTR Instrukcja obsługi i instalacji - Strona 11

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distribution is equipped with circulation circuit, it shall be connected to the outlet marked with

"CIRCULATION". For potential drain of storage tank, the HSW inlet has to be provided with a "T" fixture

with a drain valve. Each individually lockable storage tank must be at the cold water inlet provided with a

stop gate, test cock, safety valve with a reverse flap and a pressure gauge.

An example of a group storage tank connection for steady hot water consumption from all tanks using

Tichelmann´s method

HW – hot water

CW – cold water

C – Circulation

Figure 3

HSW – hot service water

1 – return valve

2 - pump

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