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1 – SAS BIO SOLID boiler, 2 – temperature sensor with a capillary tube, 3 – discharge
connection, 4 – cut-off ball valve, 5 – check valve, 6 – sump strainer, 7 – pressure reducer,
8 – Regulus thermostatic valve type BVTS protecting against overheating, 9 – discharge
valve, 10 – open expansion vessel, 11 – overflow cooling well (vessel), 12 – differential
pressure control valve, 13 – circulatory pump of a domestic hot water system, 14 – domestic
hot water tank, 15 – circulatory pump of an open vented system 16 – plate heat exchanger,
17 – circulatory pump of a sealed system, RW – expansion pipe, RB – pressure relief pipe,
RO – venting pipe, RP – overflow pipe, RS –signalling pipe
Figure.11.
General diagram for connection of the SAS BIO SOLID boiler to a central heating
and domestic hot water system. The boiler in an open vented system working with the sys-
tem through a plate exchanger, protected against overheating with a Regulus thermostatic
valve type BVTS.
CH instalation,
open system
CH instalation,
closed system
Supply from the installation
water system
water dump into the
sewage system
