Ariston Thermo SGA CA 120 Instructions Pour L'installation Et L'entretien page 82

GB
3
2.6. DISCHARGE
Empty the appliance should this
remain inactive in unheated premi-
ses, with environmental temperatu-
res below zero.
Upon installation, envision such
3. CONNECTION TO THE RECIRCULATION
3.1 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.
4
utilizzazione
82
T
U
user
eventuality and connect a drain
cock to fi tting R (fi g. 4).
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.
ATTENTION!
Boiling water may leak during emptying!
valvola unidirezionale
valvola unidirezionale
E
Safety valve
valvola di
sicurezza
alimentazione
Supply
R
S
Recirculation
ricircolazione
T
Drain
scarico