Setting The K Coefficient Of The External Temperature Probe - Biasi BASICA COND User Manual And Installation Instructions

• Press 12 or 13 (Fig. 8.1) to confirm the
value entered and return to the list of pa-
rameters (Fig. 8.4).
• Press the 17 button (Fig. 8.1) to exit "pro-
gramming mode".
8.3 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.
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 nec-
essary to set this parameter based on the
efficiency of the heating system in order to
optimise the flow temperature.
If the boiler is EQUIPED with the remote
control (optional), this parameter must be
set based on the efficiency of the heating
system to optimise the delivery tempera-
ture.
With heating temperature setting 25-85°C
(Fig. 8.6) (factory set) or temperature set-
ting 25-55°C (Fig. 8.7) or temperature set-
ting 50-80°C (Fig. 8.8) (see "Selecting the
heating temperature set" on page 65).
In this case K setting must be done from the
remote control.
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ADVANCED COMMISSIONING
Delivery temperature °C (25-85°C)
90
80
70
60
50
40
30
20
30 25 20 15 10
K=0.2 K=0.5 K=0.8
K=2.5 K=3.0 K=A52
Fig. 8.6
Delivery temperature °C (25-55°C)
60
50
40
30
20
30 25 20 15 10
K=0.2 K=0.5 K=0.8
K=2.5 K=3.0 K=A52
Fig. 8.7
Delivery temperature °C (50-80°C)
90
80
70
60
50
40
30
20
30 25 20 15 10
K=0.2 K=0.5 K=0.8
K=2.5 K=3.0 K=A52
Fig. 8.8
5 0 -5 -10 -15
External temperature °C
K=1.0 K=1.5 K=2.0
5 0 -5 -10 -15
External temperature °C
K=1.0 K=1.5 K=2.0
5 0 -5 -10 -15
External temperature °C
K=1.0 K=1.5 K=2.0