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Installation, use and maintenance guide
BOSKY 30/F30 EVO
– BOSKY COUNTRY 30/F30 EVO
5.5 SCHEMATIC DIAGRAM OF TYPICAL CLOSED EXPANSION TANK HYDRAULIC SYSTEM
VSP
Gate valve
(throttle according to pressure drop in the
system)
A
Heating plant delivery
R
Heating plant return
VEC
Closed expansion tank, sized to at least
10% of the volume of water contained in
all the system
S
Boiler discharge
PC
System circulating pump
VI
On-off valve
VNR
Nonreturn valve
VST
Thermal relief valve
SCS
Safety heat exchanger
VS
Safety valve 3 bar
VM3VT
Anti-condensation mixing valve
T
Return temperature control thermometer
LEGENDA
KEY
Dall'acquedotto
from water mains
Scarico
Outlet
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:
It is important to guarantee that the boiler return temperature always exceeds 55°C. For this reason we recommend
installing a temperature control thermometer on the return (see diagram). Act on the head of the mixing valve to adjust the
temperature.
Summary of Contents for Bosky 30 EVO
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Page 38: ...Page 37 Installation use and maintenance guide BOSKY 30 F30 EVO BOSKY COUNTRY 30 F30 EVO ...
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