2 System installation
2.1.11.10 Equipotential bonding
The boiler system must be connected to the equipotential bonding busbar as prescribed, via the connected pipeline
system as well as the pellet blow-in nozzle and suction nozzle.
The earthing strand of the conveyor hose must be connected to the fuel extractor and it
must be further connected to the earthing connection in the motor terminal box, so that it
is electrically conductive. This measure prevents static charges of the conveyor hose!
2.1.11.11 Sensor check
Please see the temperature/resistance characteristics below to function check the installed sensor:
All sensors, except flue gas sensor (KTY 81-110):
Temperature
[°C]
Resistance
[ohm]
Temperature
[°C]
Resistance
[ohm]
Temperature
[°C]
Resistance
[ohm]
Short circuit – 30 °C
Interruption 130 °C
– 20
684.62 – 3 794.55 14
915.66
– 19 690.78 – 2 801.36 15
923.14
– 18 696.98 – 1 808.21 16
930.65
– 17 703.21 0 815.11 17
938.20
– 16 709.48 1 822.04
18
945.79
– 15 715.79 2 829.01 19
953.42
– 14 722.14 3 836.02 20
961.00
– 13 728.53 4 843.06 25
1000.00
– 12 734.96 5 850.15 30
1040.00
– 11 741.42 6 857.27 40
1122.00
– 10 747.93 7 864.44 50
1209.00
– 9 754.47 8 871.64 60
1299.00
– 8 781.06 9 878.88 70
1392.00
– 7 767.67 10 886.16 80
1490.00
– 6 774.33 11 893.48 90
1591.00
– 5 781.03 12 900.83 100
1696.00
– 4 787.77 13
908.23
Flue gas sensor (PT100):
Temperature
[°C]
Resistance
[ohm]
Temperature
[°C]
Resistance
[ohm]
Temperature
[°C]
Resistance
[ohm]
Short circuit – 30 °C
Interruption 350 °C
0
100 100 139 200
176
10 104 110 142 210
179
20 108 120 146 220
183
30 112 130 150 230
187
40 115 140 154 240
190
50 119 150 157 250
194
60 123 160 161 260
197
70 127 170 165 270
201
80 131 180 168 280
204
90 135 190 172 290
208
300
212
MA-Easyfire 10.2008_EN.indd 41MA-Easyfire 10.2008_EN.indd 41 30.03.2009 13:30:05 Uhr30.03.2009 13:30:05 Uhr
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