Siemens RVD110 - Plant Type No. 4; Plant Type No. 5; Plant Type No. 6

17/94
Siemens Building Technologies Basic Documentation RVD110, RVD130 CE1P2381E
HVAC Products 3 Fundamentals 27.05.2004
3.2.4 Plant type no. 4
Y1
Y5
H5
A6
B9
B7 B71
B1
Q1
B3
Q7
2381S0 4
N1
B71
M
M
Separate heat exchangers for heating circuit and d.h.w. heating, instantaneous d.h.w.
heating via heat exchanger.
Temperature sensor B71 can be used as follows:
• As a d.h.w. temperature sensor, or
• For maximum limitation of the temperature differential
Circulating pump and flow switch optional. Selectable idle heat function.
3.2.5 Plant type no. 5
B1
Y1
Y5
B7
Q1
A6
B9
2381S05
N1
Y7
B3
B71
M
M
M
H5
Q8
Separate heat exchangers for heating circuit and d.h.w. heating; 2-stage d.h.w. control:
first stage in the primary return, second stage with a mixing valve in the secondary flow.
Circulating pump and flow switch optional. Selectable idle heat function.
3.2.6 Plant type no. 6
B1
Y1
Y5
B7
Q1
A6
B9
B3
B71
F1
Q3
B71
Q7
2381 S06
N1
M
M
Separate heat exchangers for heating circuit and d.h.w. heating; instantaneous d.h.w.
heating via storage tank connected to a separate heat exchanger; d.h.w. charging via
charging pump. 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