Configuration Diagram 1-D - Solar Water Heating With External Heat Exchanger - Bosch Worcester TDS 300 Installation And Operating Instructions Manual

5.4.8 Configuration diagram 1-D - solar water heating with external heat exchanger

L N R1 N1 R2 N2 R3 R3 R4 R4 R5 R5
230V
R1
AC
R1
Fig. 20
R1 Pump SP, solar circulation system
R2 Pump PD, heat exchanger
R3 Pump PE, thermal disinfection (option)
R5 Valve DWUD, anti-icing system (option)
S1 Temperature sensor (T1), collector FSK
S2 Solar cylinder bottom temperature sensor (T2)
S3 Solar cylinder top temperature sensor (required for shutdown at 95 °C)
S6 Temperature sensor (TD), external heat exchanger
S7 Flow heat meter WMZ temperature sensor (option)
S8 Return heat meter WMZ temperature sensor (option)
WMZ Heat meter (option)
L3 N3 L4 N4 L5 N5
R2
R3
S1
S7 S6
WMZ R5
S8
6 720 644 593 (2010/04)
ELECTRICAL CONNECTIONS (FOR ENGINEERS ONLY)
S1 S2 S3 S4 S5 S6 S7 S8 I9
R5 S1 S2 S3
S3
S2
R2
S6 S7 S8 WMZ
R3
6720613732-13.1 SD
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