Heat Exchanger - Bosch T2400S 8 ND 23 Training And Service Information For After Sales

The LPP unit as a fixed power version, allows through the power selector to switch manually
between power level 1 (right side of burner ON = SV1) to power level 2 (left side of burner ON =
SV2) to power level 3 (both sides ON = SV1 + SV2).

4.6 Heat Exchanger

The copper heat exchanger has a special configuration to ensures sealed combustion and
optimized heat transfer from the flame heat to the water that flows through the copper
pipes.
For its protection and ensuring maximum life time, there is over-heating protection ensured by a
bimetallic thermostat in direct contact with the copper and one thermal fuse around the heat
exchanger.
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Pict.19 – Schematic view of 3 power levels in LPP
Pict.20 – Heat exchanger
6 720 887 546 "SM FP_ErP LPP-MPP Europe 2018/05 en"