Ariston Thermo SGA X 120 EE Instrucciones Para El Uso Y La Manutención página 28

GB
DISCHARGE
Empty the appliance should this remain
inactive in unheated premises, with envi-
ronmental temperatures below zero.
Upon installation, envision such eventua-
lity and connect a drain cock to fi tting R.
TO EMPTY THE WATER HEATER:
• Switch-off the burner and close the
gas supply
• Close the shut-off cock upstream of
the appliance;
• Open the use cocks downstream from
the water heater;
• Open the drain cock connected to fi t-
ting R.
user
utilizzazione
28
T U
RECIRCULATION
Should the utility plant also include the
circuit for the DHW recirculation, the
same fi tting R.
used for draining can be used.
The circuit at the side schematises the
connection to be carried out in this case.
unidirectional valve
valvola unidirezionale
E
alimentazione
R
Safety
valvola di
valve
sicurezza
Supply
S
Recirculation
ricircolazione
T
Drain
scarico