Siemens RVD230 Basic Documentation page 21

B9
Y1 B7
B12
Q1
B9
Y5
B7
Y1
B12
Q1
B9
Y7
B1
Y1 B71
B7
B9
Y1
B9
Y1
Y5
a) Circulating pump feeding water into the heat exchanger's return
b) Circulating pump feeding water into the storage tank
Siemens Building Technologies
HVAC Products
A6
B12
Q1
B72
Y7
Y5
B3
Q3
B1
B71 B71
A6
B72
B3
Q3
B1
B71 Q4
A6
B72
Y5
B3
Q3
B71
B1
B7 B71 Q1
B1
B7 B71 Q1
B3
Q3
B72 B32 H5
Basic Documentation RVD230
3 Fundamentals
A6
B1
B12 Flow sensor heating circuit
B3
B31 Storage tank sensor 1
B32 Storage tank sensor 2
B31 B7
Q2
B71 Common secondary return or d.h.w. return sensor
B32
B72 Return sensor heating circuit
B9
Q1 Heating circuit pump
Q2 Circulating pump (optional)
Q3
Y1
Y5
Y7
A6
B1
B12 Flow sensor heating circuit
B3
K6
B31
B31 Storage tank sensor 1
B32 Storage tank sensor 2
B7
B32
B71 Common secondary return sensor
B72 Return sensor heating circuit
B9
K6
Q1
Q3
Q4
Y1
Y5
A6
B1
B12 Flow sensor heating circuit
B3
B31
Q
B31 Storage tank sensor 1
b)
B32 Storage tank sensor 2
B7
B32
B71 Common secondary return or d.h.w. return sensor
B72 Return sensor heating circuit
Q2
a)
B9
Q
Q1
Q2 Storage tank charging pump
Q3
Y1
Y5
Y7
B1
B7
B71 Secondary return sensor
B9
Q1
Y1
B1
B3
B32 Secondary return sensor d.h.w.
B7
B71 Sensor precontrolled secondary return
B72 Primary return sensor d.h.w.
B9
H5
Q1 System pump
Q3 Circulating pump (optional)
Y1
Y5
* Suppression of hydraulic creep
Room unit
Common flow sensor
D.h.w. flow sensor
Common primary return sensor*
Outside sensor
D.h.w. intermediate circuit pump
2-port valve common return
Mixing valve d.h.w. circuit
Mixing valve heating circuit
Room unit
Common flow sensor
D.h.w. flow sensor
Common primary return sensor*
Outside sensor
Circulating pump (optional)
Heating circuit pump
D.h.w. intermediate circuit pump
Storage tank charging pump
2-port valve common return
Mixing valve heating circuit
Room unit
Common flow sensor
D.h.w. flow sensor
Common primary return sensor*
Outside sensor
Circulating pump (controlled externally, optional)
Heating circuit pump
D.h.w. intermediate circuit pump
2-port valve common return
Mixing valve d.h.w. circuit
Mixing valve heating circuit
Sensor precontrolled secondary flow
Sensor precontrolled primary return *
Outside sensor (optional, display only)
System pump
2-port valve precontrolled primary return
Sensor precontrolled secondary flow
D.h.w. flow sensor
Sensor precontrolled primary return *
Outside sensor (optional, display only)
Flow switch (optional)
2-port valve precontrolled primary return
2-port valve d.h.w. circuit primary return
21/130
CE1P2383en
27.05.2004