9
Technical Features
ENGLISH
1.8 - BOILER ANTIFREEZE PROTECTION
ANTIFROST PROTECTION
Press
‘‘BLUE’’
button, up to led
M
OFF.
This protection can intervene only if the
electricity and gas supplies are connected.
If one of the two is not available and upon reset
11 (SR)
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
11 - SR
(*)
Status
antifreeze function
Actions
Electric
Gas
1
ON
ON
< 7 °C
ON
- Burner and Pump ON until T > 15°C
2
ON
OFF
< 5 ÷ 5 °C
ON
FAULT SIGNAL CODE Fr (E16)
(with Electrical power supply ON)
(see par. 4.6 - ERROR CODES).
Ignition inhibited.
OFF
ON
OFF
Ignition inhibited.
OFF
OFF
OFF
Ignition inhibited.
(*) Flow sensor
