Configuration Diagram 1-Acd P-V - Solar Water Heating With 2Nd Collector Array, 2 Cylinders Connected Via Valve And External Heat Exchanger - Bosch Worcester TDS 300 Installation And Operating Instructions Manual

5.4.16 Configuration diagram 1-ACD p-v - solar water heating with 2nd collector array, 2 cylinders
connected via valve and external heat exchanger
L N R1 N1 R2 N2 R3 R3 R4 R4 R5 R5
230V
R1
AC
S1
R1
WMZ
S8
Fig. 28
R1 Pump SP, solar circulation system
R2 Pump PD, heat exchanger
R3 Pump PA, 2nd collector array
R4 Valve DWUC for cylinder selection
R5 Valve DWUD, anti-icing system (option)
S1 Temperature sensor (T1), collector FSK, array 1
S2 Solar cylinder bottom temperature sensor (T2)
S3 Cylinder C bottom temperature sensor (TC)
S4 Cylinder C top temperature sensor (required for shutdown at 95 °C)
S5 Temperature sensor (TA), collector FSK, array 2
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
5
S5
S7
R3
6 720 644 593 (2010/04)
ELECTRICAL CONNECTIONS (FOR ENGINEERS ONLY)
S1 S2 S3 S4 S5 S6 S7 S8 I9
R4 R5 S1 S2 S3 S4 S5 S6 S7 S8 WMZ
S6
R4 R5
R2
S2
S4
S3
6720613732-06.1 SD
37