- 61 -
INST
ALLA
TION
COMMISSIONING
Fig. 7.15
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. 7.16.
In this case K setting must be done from the
remote control.
Fig. 7.16
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
The K coefficients is a parameter that in-
creases or reduces the boiler flow tempera-
ture when the outside temperature chang-
es.
When installing the external probe it is nec-
essary to set this parameter based on the
efficiency of the heating plant in order to op-
timise the flow temperature (Fig. 7.16).
E.g. In order to have a flow temperature at
the heating plant of 60°C with an external
temperature of -5°C, set a K at 1.5 (sec-
tioned line in Fig. 7.16).
Sequence for setting the K coefficient
• Enter in "programming mode" by pressing
keys 14 - 15 - 16 (Fig. 7.17) for 10 seconds
at the same time until the letters
Pr
that al-
ternate with code 01 are displayed on the
LCD display, indicating that "parameter
01
", has been activated (Fig. 7.18).
Fig. 7.17
12
13
14
15
16
17
Fig. 7.18
• Scroll the various parameters using keys
15 or 16 until the letters
Pr
that alternate
with code
15
are displayed on the LCD
display, indicating that "parameter 15"
(Fig. 7.19) has been activated.
