BC10 basic controller
10
44
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
Buderus • http://www.buderus.net
We reserve the right to make any changes due to technical modifications!
10.3.2 Setting the DHW temperature value
z
Turn the "DHW temperature" rotary knob to set the
desired temperature of the hot water in the hot-water
tank.
10.3.3 Entering the space heating water temperature
z
Turn the "space heating water temperature" knob to set
the upper limit value of the heater water for the heating
operation. This limitation does not apply to DHW prepa-
ration.
140
130
120
90
100
110
Condition
Explanation
LED
0
Off
No hot water supply (only heating mode).
Off
Eco
1
Economy mode,
Hot water temperature 140 °F
(60 °C)
The DHW will only be reheated to 140 °F (60 °C), if the temperature has signifcantly
fallen. This reduces the number of burner starts and saves energy. As a result the
water may be a bit colder initially.
On
2
86 – 140
Direct setting on BC10 in °F
The temperature set on the BC10 is a temperature that cannot be changed using a
RC thermostat.
On
2
Aut
Entry via thermostat
(presetting)
The temperature is set on the thermostat (e. g. RC30). If no thermostat is connected,
the maximum DHW temperature is 140 °F (60 °C).
On
2
Table 10 Settings of "DHW temperature" knob
1
This function has been optimized for boilers with combined DHW heating (combi-units).
2
The heating program (timer) of the room control unit remains active, as a result of which no hot water is heated during night-time operation.
3
The LED under the rotary knob lights up if the DHW temperature is below the target value (heat request for DHW).
190
170
150
130
90
110
Condition
Explanation
LED
0
Off
No supply to heating system (only DHW heating operation).
Off
86 – 190
Direct setting on BC10 in °F
(86 – 190 °F = 30 – 90 °C)
The temperature set on the BC10 is a temperature that cannot be changed using a
RC thermostat. Supply temperature does not rise above the set temperature.
On
1
Aut
Entry via thermostat
(presetting)
The temperature is automatically determined on the basis of the heating
characteristic. If no thermostat is connected, the maximum heater temperature is
190 °F (90 °C).
On
1
Table 11 Settings of "space heating water temperature" rotary knob
1
The LED under the rotary knob lights up when the heating system is switched on and heat is requested. In summer mode the heating system is
switched off (LED off).