9
Technical Features
ENGLISH
1.8 - BOILER ANTIFREEZE
PROTECTION
Enabled by default
This protection can intervene only if the
electricity and gas supplies are connected.
If one of the two is not available and upon reset
30 (SMG)
a temperature between 2 ÷ 5°C is
detected, the appliance will behave as described
in tab.
pos 2.
The heating system can be protected effectively
from frost by using antifreeze products with
inhibitor for heating systems (specific for
multidmetal)
Do not use car engine antifreeze products as
they could damage the water gaskets.
P
O
S
ANTIFREEZE FUNCTION
Power supplies
30 - SMG
(*)
Status function
antifreeze
Actions
Electric
Gas
1
ON
ON
< 7 °C
ON
- Burner and Pump ON until T > 15°C
2
ON
OFF
< 2 ÷ 5 °C
OFF
FAULT CODE 16
(see par. 4.6 ERROR CODES).
Ignition disabled.
OFF
ON
OFF
Ignition disabled.
OFF
OFF
OFF
Ignition disabled.
(*) Sensor 30 par. 2.2
For outdoor installations, in partially protected places, you must use the additional heater
kit (optional) for antifreeze siphon cap.