23Hydraulic scheme no. 5 - diagram with pelet boiler and with heat buffer 5:1 – boiler2 – boiler pump3 – DHW circulation pump4 - upper sensor temperature buffer5 – lower sensor temperature buffer6 – lower sensor temperature Solara7 – water temperature sensor for charging buffer pumpSolara8 – regulated circuit water temperature sensor9 – electrical servo of regulated heat circuit10 – regulated heat circuit pump11 - solar collector temperature sensor12 – solar panel13 – heat buffer14 – solar pump.PROPOSED SETTINGS:Parameter Setting MENUHydraulic diagram 5 menu→ service settings → SystemPump start temperature 55C menu→ service settings → SystemMinimum temperature 60C menu→ service settings → System→ Main heat sourceHysteresis 5C menu→ service settings → System→ Main heat sourceMode ON menu→ service settings → System→ Main heat sourcePump operation extension 5min. menu→ service settings → System→ Main heat sourceSelection OFF menu→ service settings → System → Additional heat sourceDescription: The pump (9) starts after exceeding the pump starting temperature. The boiler (1) will switch off afterloading the buffer tank (13). The boiler (1) have to be equipped with security measure against cold water returning tothe boiler e.g. thermostatic 3-way valve. The pump (2) starts together with the boiler (1) and turns off after turning offthe boiler (1), but with 5 min. time delay.5 Shown hydraulic diagram does not replace a central heating system and can be used only for demonstrative purposes!