Siemens RVD240 - Page 20

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Siemens Building Technologies Basic documentation RVD240 CE1P2384en
HVAC Products 3 Fundamentals 27.05.2004
Y1
B7
B1
Q1
B9
A6
Y7 B72
B12
Q2
A6
B31
B71
2384S05 Y5
B32
B3
Q3
Q
A6 Room units
B1 Flow sensor heating circuit 1
B12 Flow sensor heating circuit 2
B3 D.h.w. flow sensor
B31 Storage tank sensor 1
B32 Storage tank sensor 2
B7 Primary return sensor heating circuit 1*
B71 Primary return sensor d.h.w. circuit
B72 Primary return sensor heating circuit 2*
B9 Outside sensor
Q Circulating pump (controlled externally, op-
tional)
Q1 Pump heating circuit 1
Q2 Pump heating circuit 2
Q3 D.h.w. intermediate circuit pump
Y1 2-port valve primary return heating circuit 2
Y5 2-port valve d.h.w. primary return
Y7 2-port valve primary return heating circuit 2
B9
Q1
Y1
B7
B1
2384S06
B71
B12
Q2
Y5
B72
A6
A6
A6 Room units
B1 Common flow sensor
B12 Flow sensor heating circuit 2
B7 Common primary return sensor*
B71 Common secondary return sensor
B72 Return sensor heating circuit 2
B9 Outside sensor
Q1 Pump heating circuit 1
Q2 Pump heating circuit 2
Y1 2-port valve common primary return
Y5 Mixing valve heating circuit 2
B9
K6
Q3
Y1
B7
B1
B31
2384S07
B71
B71
B32
A6
B12
Q2
Y5
Q1
A6
B72
A6 Room units
B1 Common flow sensor
B12 Flow sensor heating circuit 2
B31 Storage tank sensor 1
B32 Storage tank sensor 2
B7 Common primary return sensor*
B71 Sensor common secondary return or return
sensor d.h.w. circuit (only if Q3 is speed-
controlled)
B72 Return sensor heating circuit 2
B9 Outside sensor
K6 Circulating pump (optional)
Q1 Pump heating circuit 1
Q2 Pump heating circuit 2
Q3 D.h.w. intermediate circuit pump
Y1 2-port valve common primary return
Y5 Mixing valve heating circuit 2
B9
Q
Q3
Y1
B7
B1
B31
2384S08
B71
B71
B32
A6
B12
Q2
B3
Y7
Q1
A6
B72
Y5
A6 Room units
B1 Common flow sensor
B12 Flow sensor heating circuit 2
B3 D.h.w. flow sensor
B31 Storage tank sensor 1
B32 Storage tank sensor 2
B7 Common primary return sensor*
B71 Sensor common secondary return or return
sensor d.h.w. circuit (only if Q3 is speed-
controlled)
B72 Return sensor heating circuit 2
B9 Outside sensor
Q Circulating pump (controlled externally, op-
tional)
Q1 Pump heating circuit 1
Q2 Pump heating circuit 2
Q3 D.h.w. intermediate circuit pump
Y1 2-port valve common primary return
Y5 Mixing valve d.h.w. circuit
Y7 Mixing valve heating circuit 2
a) Circulating pump feeding water into the heat exchanger’s return
b) Circulating pump feeding water into the storage tank
* Suppression of hydraulic creep