Tab.92 Temperature flow/heating circuit return sensors, DW tank and DW sensor (NTC10K Beta 3977 10 KOhm @ 25 °C)
Temperature [°C] 0 10 20 25 30 40 50 60 70 80 90
Resistance [Ω] 32505 19854 12483 9999 8060 5332 3608 2492 1754 1257 915
Tab.93 Heat exchanger protection flue gas temperature sensor (NTC20K Beta 3970 20kOhm @ 25 °C)
Temperature [°C] 0 10 20 25 30 40 50 60 70 80 90 100
Resistance [Ω] 66050 40030 25030 20000 16090 10610 7166 4943 3478 2492 1816 1344
— — — — —> 110 120 130 140 150 160 170 180 190 - - -
— — — — —> 1009 768 592 461 364 290 233 189 155 - - -
3.3
Dimensions and connections
Fig.93
Key to dimensions and connections
700 mm
285 mm
395 m
m
BO-7798902-1
2
5
4
1
3
6
8
7
1 Safety valve
2 Heating circuit flow fitting (3/4")
3 Ø 21.8 mm adapter for condensate discharge
4 1/2” Domestic Hot Water (DHW) outlet fitting/3/4” Domestic Hot Water (DHW) tank flow fitting
5 Gas inlet fitting (3/4")
6 Domestic cold water inlet fitting (1/2")
7 Heating circuit return fitting (3/4")
8 Heating system/boiler filling cock
3 Technical specifications
en
7804841 - 02 - 20012022 INIDENS 153
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