ENERGY BY NATURE
34
SAFETY VALVE
HOT WATER
COLD WATER
HYDRAULIC KIT
EXPANSION
VESSEL
FIREPLACE OR
STOVE PELLET
NUN-RETURN
VALVE
HOT WATER
COLD WATER
HYDRAULIC KIT
EXPANSION
VESSEL
BOILER
NUN-RETURN
VALVE
Connection with fireplace or stove pellet
Parallel connection
SAFETY VALVE
AUXILIARY BOILER
Indicative schemes
The absence or the inefficiency
of non-return valve (compulsory
for regulations) must cause
damages to RADIASOL for
decompression of the system.
EDN recommends periodic
controls of the non-return valve
and its replacement every 5
years.
