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Installation, use and maintenance guide
BOSKY 30/F30 EVO
– BOSKY COUNTRY 30/F30 EVO
5.6 SCHEMATIC DIAGRAM OF TYPICAL CLOSED EXPANSION TANK HYDRAULIC SYSTEM WITH PUFFER
TANK
ATTENTION: it is mandatory to earth the generator. If this instruction is not observed serious damage, which
is not covered by warranty, will result to the body of the appliance. Have a skilled electrician check the
earthing. There must be no electric potential (Volt) between the generator earth and the system’s real earth
(earth plate). To prevent electrochemical corrosion of the appliance body do not use galvanised pipes and
fittings. Other materials must be earthed with special earthing cables in order to obtain a unipotential
earthing system.
ATTENTION:
Anti-condensation mixing valve should be set at approx. 65°C. So when the temperature of the boiler drops below
this value, the “cold” inlet closes and prevents circulation towards the puffer tank but only between the boiler supply and return. In
this way the heat stored in the puffer tank is not dispersed to the boiler.
PC
System circulating pump
A
Heating plant delivery
VI
On-off valve
R
Heating plant return
VNR
Nonreturn valve
VEC
Closed expansion tank, sized to at least 10% of the
volume of water contained in all the system
VST
Thermal relief valve
S
Boiler discharge
SCS
Safety heat exchanger
VS
Safety valve 3 bar
VM3VT
Anti-condensation mixing valve
LEGENDA
KEY
Dall'acquedotto
from water mains
Scarico
Outlet
COLD
– HOT
COLD - HOT
Summary of Contents for Bosky 30 EVO
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