Table of Contents
Advertisement
USE
2.1.7
Special functions
When a special function is active, a specific message is shown
on the display of the device control interface.
Frost protection
The anti-freeze protection function protects the system against
freezing.
When the anti-freeze function is active, the message "AFro" is
displayed.
The intervention modes are the following:
− Burner anti-freeze protection: If the temperature of the
delivery probe of the device drops below 5°C the burner
turns on and stays on until the delivery temperature ex-
ceeds 10°C (with the external probe connected the pro-
tection activates only with external temperature values
< 10°C).
− Heating circuit anti-freeze protection: If the burner stays
off for 6 consecutive hours the circulator and the 3-way
diverting valve of the device will activate for 5 minutes. If
the temperature of the delivery probe of the device drops
below 5°C the burner turns on and stays on until the de-
livery temperature exceeds 10°C (with the external probe
connected the protection activates only with external
temperature values < 10°C).
− Domestic circuit heater anti-freeze protection: If the
temperature of the heater probe drops below 5°C the
burner turns on and the circulator and 3-way diverting
valve will activate. The burner stays on until the temper-
ature of the heater probe exceeds 10°C and the circula-
tor carries on working for the post-circulation time (Par.
2044). With the external probe connected the protection
activates only with the external temperature values <
10°C.
Venting
The function is automatically enabled at the first start-up and at
each reset of the power supply.
When the function is active, the message "Air" is displayed.
During the venting, the circulator is enabled, so that the air
which may be present inside the system circuit can exit through
the automatic drain valve of the device.
The status of the light guide changes to flashing green.
Circulator and 3-way valve activation every 24 hours
Every 24 hours the circulator and 3-way diverting valve are acti-
vated for 30 seconds (only in heating mode 0,1,4).
This function prevents the circulator and valve from getting stuck
in a determined position.
Anti-legionella function - With Heater Probe only
The function is automatically enabled when the heater sensor
is connected, at each reset of the power supply or daily, if nec-
essary.
When the function is active, the message "ALE9" is displayed
beside the heater temperature and the icon
The function increases the water temperature inside the heater
up to 65°C and keeps it for 30 minutes.
Once this time has elapsed, the control box normal operation is
restored.
2.1.8
If an ignition or operating anomaly occurs, the thermal unit dis-
play will show a text message (small digit) and a number (large
digit), which vary according to the anomaly detected.
There are 3 error levels:
− Permanent (Loc)
− Temporary (Err)
− Alerts (AttE)
Permanent Error
The text "Loc" is displayed together with the permanent error
number. The icon
equipment must be manually reset by keeping the key "ENETER/
RESET" pressed.
Temporary Error
The text "Err" is displayed together with the temporary error
number.
The icon
The lock-out error must be solved.
Contact your local Technical Assistance Service
blinks.
16
Ignition failure
indicates that the burner is disabled. The
indicates that the burner is disabled.
Advertisement
Table of Contents
