40
SFK 28 - RAD - ING - Manuale - 1801.1_V3
2 Av
ve
rte
nz
e gener
ali
pe
r la
manutenzione
_
sc
al
dab
agno
_c
ond
_
EN
2. MAINTENANCE
SUPPOR
T
C
ENTRE
› check that the liquid flow is not obstructed and
that there are no combustion gas refluxes inside
the internal system.