40
Figure 11.
General diagram for connection of the SAS AGRO-ECO boiler to a
central heating and domestic hot water system. The boiler in the sealed system,
secured against overheating with a SYR thermostatic valve, type 5067
Wat
er discharge
to a sew
age syst
em
Supply fr
om a wat
er
supply syst
em
1-
SAS
AGRO
-ECO
boiler
, 2
–
pressure
relief
valve,
3
–
temperature
sensor
with
a
capillary
tube,
4
–
cut
-off
ball
valve,
5
–
sump
strainer
,
6 – SYR thermal protection device for the system, type 5067, 7-differential pressure control valve, 8 – circulatory pump of a
domestic hot
water system, 9 – check valve, 10 – domestic hot water tank, 11 – four
-way valve, 12 – circulatory pump of a central heating system, 13 –
central heating system, 14 – diaphragm expansion vessel, 15 – discharge valve, 16 – over
flow cooling well (vessel)
