- 56 -
INST
ALLA
TION
COMMISSIONING
Fig. 7.12
Modify the programmed SET by acting on
•
buttons
or
until
a setting of
60
is displayed, wait for the number pro-
grammed to fl ash ( Fig. 7.13 )
Fig. 7.13
To exit programming, press button
•
.
Setting the K coeffi cient of the
7.10
external temperature probe
The boiler is set with a K coeffi cient 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. 7.14 .
Fig. 7.14
External temperature °C
20
20
15
10
5
0
-5
-10
-15
-20
-25
30
40
50
60
70
80
C.h. flow temperature °C
K=6
K=4
K=3
K=2
K=1,5
K=1
K=0,5
If the boiler is
EQUIPED
with the remote
control (optional) refer to Fig. 7.15 .
In this case K setting must be done from the
remote control.
External temperature °C
20
20
15
10
5
0
-5
-10
-15
-20
-25
30
40
50
60
70
80
C.h. flow temperature °C
K=6
K=4
K=3
K=2
K=1,5
K=1
K=0,5
Fig. 7.15
The K coeffi cients is a parameter that in-
creases or reduces the boiler fl ow tempera-
ture when the outside temperature chang-
es.
When installing the external probe it is nec-
essary to set this parameter based on the
effi ciency of the heating plant in order to op-
timise the fl ow temperature ( Fig. 7.15 ).
E.g. In order to have a fl ow temperature at
the heating plant of 60°C with an external
temperature of -5°C, set a K at 1.5 (sectioned
