Siemens RVD110 - Plant Type No. 6 B; Plant Type No. 7; Plant Type No. 8

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Siemens Building Technologies Basic Documentation RVD110, RVD130 CE1P2381E
HVAC Products 3 Fundamentals 27.05.2004
3.2.7 Plant type no. 6b
B1
Y1
Y7
B7
Q1
A6
B9
B71
Q7
2381S09
N1
M
Heat exchanger for the heating circuit, d.h.w. heating via the district heat primary cir-
cuit, control of the d.h.w. temperature via an electrothermal actuator. Circulating pump
optional. For information, refer to section 14.5 ”Plant type no. 6b”.
3.2.8 Plant type no. 7
Y1
B7
B1
Q1
A6
B9
B3
Q3
Y5
B71
2381S07
N1
B71
F1
M
M
Q8
2 heat exchangers connected in series, 1 for the space heating circuit and 1 for d.h.w.
heating; instantaneous d.h.w. heating via storage tank connected to the second heat
exchanger which uses a mixing circuit for d.h.w. control. Temperature sensor B71 can
be used as follows:
• As a d.h.w. temperature sensor, or
• For maximum limitation of the temperature differential; in that case, the d.h.w. tem-
perature must be acquired with thermostat F1
3.2.9 Plant type no. 8
A6
B9
B71
Q1
Q7
Q3
Y1
B7
B1
Y5
B3
2381S08
N1
M
M
D.h.w. heating with storage tank connected to the heat exchanger; heating circuit with
mixing circuit in the heating zone flow; d.h.w. charging via charging pump.