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Installation and Servicing Instructions Logamax plus GB142-24/30/45/60 • Version 12/2004
Buderus Hydronic Systems • http://www.buderus.net
BC10 basic controller
10
z
Turn the knob to set the maximum heating system
temperature.
z
Press the "Chimney Sweep"
button to exit manual
mode.
10.3 Configuring the appliance
10.3.1 Adjusting the heating capacity
Setting the heating capacity depending on the maximum
heat requirement (table 10).
z
Press and hold the "Chimney Sweep"
and
"Service"
buttons until an "L" with a double-digit
value (e. g.
/
) or an "L" followed by two dashes
(
/
) is displayed.
Factory setting "
/
".
z
Set the heating capacity by pressing the "Chimney
Sweep"
button (higher values) or the "Reset"
button (lower values).
z
Press the "Service"
button to confirm the setting.
190
170
150
130
90
110
Regulator
setting
in %
Heating capacity in kW (±5 %)
appliance
cap.
24 kW
appliance
cap.
30 kW
appliance
cap.
45 kW
appliance
cap.
60 kW
/
7.2
8.7
13.5
18.0
/
9.6
11.7
18.0
24.0
/
12.0
14.8
24.5
30.0
/
14.4
17.8
27.0
36.0
/
16.8
20.9
31.5
42.0
/
19.2
23.9
36.0
48.0
/
21.6
27.0
40.5
54.0
/
24.0
30.0
45.0
60.0
Table 10 Heating capacity
WARNING
– Turn the "heating system temperature"
knob to limit the heating system tempera-
ture to the permissible flow temperature for
the floor heating circuit (e. g. 86 – 104 °F =
30 – 40 °C), so pipes will not overheat.
DANGER
The heating system can freeze up if a power
failure occurs or after switching off the power
supply, because manual operation then is no
longer active.
– You must re-activate manual operation
after switching on the system to keep the
heating system operational (especially if
there is a risk of frost).
+
/
/
