Appendix; Sensor Curves; Temperature Sensor At The Burner Control Unit; Hydraulic Resistance - Buderus Logano plus GB402 Installation And Maintenance Instructions For Contractors

12

Appendix

12 Appendix
12.1

Sensor curves

DANGER: Risk to life from electric shock.
▶ Isolate the heating system before taking any
readings.
Always measure the temperatures being compared (flow, return and
boiler temperature) near to the relevant sensor. Measure the resistance
at the cable ends.

12.1.1 Temperature sensor at the burner control unit

Temperature sensor resistance values at the burning
Temperature Minimum value
[ °C] [
5 23466.20
10 18770.80
15 15120.00
20 12245.80
25 9951.30
30 8145.40
35 6711.50
40 5560.60
45 4625.40
50 3866.90
55 3239.10
60 2730.20
65 2314.50
70 1969.90
75 1683.30
80 1444.90
85 1241.90
90 1073.10
95 927.60
100 805.20
Table 25 Resistance values
2 similar temperature sensors (twin sensors), which are
installed in a single sensor casing, are used as boiler
temperature sensors.
All temperature sensors in the boiler have the same
sensor curve.
56
machine
Nominal value Maximum value
[ [
24495.00 25523.80
19553.00 20335.20
15701.00 16282.00
12690.00 13134.20
10291.00 10630.70
8406.00 8666.60
6912.00 7112.50
5715.00 5869.40
4744.00 4862.60
3958.00 4049.10
3312.00 3384.90
2786.00 2841.80
2357.00 2399.50
2004.00 2038.10
1709.00 1734.70
1464.00 1483.10
1257.00 1272.10
1084.00 1094.90
938.90 950.20
815.90 826.60
12.2

Hydraulic resistance

Fig. 66 Flow resistance on the heating water side
[x] Flow rate ( m³/h)
[y] Pressure drop on the heating water side (mbar)
12.3

Connecting diagram MC10

NOTICE: System damage with incorrect installation!
▶ Provide a permanent power supply (not a safety
plug).
▶ Ensure that the power supply is connected to the
correct phases.
▶ Implement the installation, fuse protection, mains
isolator, emergency stop switch and protective
measures in accordance with local regulations.
DANGER: Risk to life from electric current!
▶ Never use the earth conductor (green/yellow) as a
control cable.
NOTICE: Operating faults through power failure!
▶ When connecting external components to the MC10
control unit, ensure that these components do not
exceed a total maximum power consumption of 5 A.
Logano plus GB402 – 6 720 820 700 (2018/01)