9
Technical Features
ENGLISH
1.8 - BOILER ANTIFREEZE
PROTECTION
It is activated by default
This protection can trigger only if the electricity
and gas supplies are connected.
If one of the two is not available and upon reset
11 (Sm) a temperature level between 2 and
5°c is detected, the appliance will behave as
described in the table below, pos 2.
The heating system can be protected effectively
from frost by using antifreeze products with
inhibitor for heating systems (specific for multi-
metal)
do not use car engine antifreeze products as
they could damage the water gaskets.
P
O
s
ANTIFREEZE FUNCTION
Supplies
11 - sR
(*)
Status
antifreeze func-
tion
Actions
electric
Gas
1
on
on
< 7 °c
on
- Burner and Pump on until T > 15°c
2
on
off
< 5 ÷ 5 °c
off
fAulT SIGnAl code 16
(see par. 4.4 error codeS).
Ignition inhibited.
off
on
off
Ignition inhibited.
off
off
off
Ignition inhibited.
(*) Sr Sensor par. 2.2
Summary of Contents for MODULEX EXT Series
Page 1: ...e n G l I S h INsTALLATION AND MAINTENANCE INsTRUCTIONs 348 440 550 660 770 900 moduleX eXT...
Page 25: ...25 Installation instructions E N G L I S H PAGE LEF T INTEN TION ALL Y BLANK...
Page 30: ...30 PAGE LEF T INTEN TION ALL Y BLANK...
Page 34: ...34 ON ON OFF 10V ON 10V Wilo Stratos modulating pump setting ext input enabling 0 10 V...
Page 51: ...51 Installation instructions E N G L I S H PAGE LEF T INTEN TION ALL Y BLANK...
