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Fig. 7.15
• Press buttons
"PM15" program that enables the external
probe (Fig. 7.16)
Fig. 7.16
• Modify the programmed SET by acting on
buttons
or
displayed, wait for the number programmed
to flash (Fig. 7.17)
Fig. 7.17
• To exit programming, press button .
COMMISSIONING
or
to display the
until a setting of 60 is
7.10 Setting the K coefficient of the
external temperature probe
The boiler is set with a K coefficient equal to
zero for boiler functioning without the probe
connected.
If the boiler is NOT EQUIPPED with the re-
mote control (optional) refer to Fig. 7.18.
C.h. flow temperature °C
K=6
K=4 K=3
80
70
60
50
40
30
20
20
15
10
5
0
External temperature °C
Fig. 7.18
If the boiler is EQUIPED with the remote con-
trol (optional) refer to Fig. 7.19.
In this case K setting must be done from the
remote control.
C.h. flow temperature °C
K=6
K=4
K=3
80
70
60
50
40
30
20
20
15
10
5
0
External temperature °C
Fig. 7.19
The K coefficients is a parameter that in-
creases or reduces the boiler flow tempera-
ture when the outside temperature changes.
When installing the external probe it is neces-
sary to set this parameter based on the effi-
ciency of the heating plant in order to optimise
K=2
K=1,5
K=0,5
-5
-10
-15
-20
-25
K=2
K=1,5
K=1
K=0,5
-5
-10
-15
-20
-25
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