Drazice OKC 300 NTR/1MPa Istruzioni per l'uso e l'installazione - Pagina 6
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OKC 300-1000 NTR
heated by a gas boiler with two pumps
Fig. 2
An example of a group heater connection for steady hot service water consumption from all tanks using
Tichelmann's method
Fig. 3
OV – Heating water
SV - Cold water
C - Circulation
OKC 300-1000 NTRR
heated by a gas boiler and solar collectors
controlled by a three-way valve
TUV - Hot service water
1 - Back-pressure valve
2 - Pump
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