Fig. 10 Description of the Hydraulic Kit with thermostatic valve working
with expansion vessel installation:
1-central heating pump; 2-thermostatic valve; 3-throttle valve; 4-return from DHW tank;
5-connection for open vessel; 6-return flow from the central heating; 7-forward flow for central
heating and DHW; 8-connection for open vessel; 9-expansion vessel*; 10-DHW tank (max.
140L)*;11-mixing valve with servo*; 12-mixing circuit pump*; 13-DHW pump*;
14-safety group (with 1,5 bar safety valve)*
* - not included
Holz Master Manual
wer. 22/05/2012/EN/V1.0
HKS LAZAR
str.28
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