33
4.5.1 Chimney sweep function
(fig.
21)
To check boiler combustion, press the
installer’s key
for a few seconds. The
chimney sweep function will switch on
and will continue for 15 minutes.
From that moment, the boiler will start
working in heating mode at maximum
power, with cut off at 80°C and re-igni-
tion at 70°C
Warning! Ensure adequate circulation
around the heating system before acti-
vating the chimney sweep function.
If the key
and
are pressed during
the 15 minutes of the chimney sweep
function, the boiler will be brought
respectively to maximum and minimum
power.
The chimney sweep function will auto-
matically switch off after 15 minutes or
when the key
is pressed again.
4.5.2 Operation floor drying
(fig.
22)
The operation floor drying keeps the
floor at a pre-established temperature
profile and it is
activated only for those
systems combined with the mixed zone
card ZONA MIX code 8092234
.
The temperature profiles can be selec-
ted by means of the installer parameter
PAR 43:
0 = Not activated function
1 = Curve setting A
2 = Curve setting B
3 = Curve setting A + B
The turning off of the function happens
clicking on the button OFF (return of PAR
43 to the value 0) or automatically at the
end of the function.
The set of the mixed zone follows the
development of the selected curve and
reaches a maximum of 55°C.
During the function all the other heating
demands are ignored (heating, sanitary,
antifreeze and chimney sweep).
During the functioning the display shows
the remaining days for the completion of
the function (example mains digits -15 =
15 days lack to the end of the function).
The diagram fig. 22/a reports the deve-
lopment of the curve.
ATTENTION:
- Observe the relevant standards and
regulations of the floor manufacturer!
- Proper functioning is ensured only
when the plant is correctly installed
(hydraulic system, electrical installa-
tion, settings)! If not observed, the floor
might get damaged!
50
45
40
35
30
20
5
10
15
18
[Tag
]
0
25
55
A
B
1
1
5
7
X
A + B
1
25
[TVw]
Fig. 22
TVw
Flow temperature setpoint
Tag
Period in days
x Start
day
A Functional
heating
B
Floor curing heating
Fig. 21
