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Description
Note
Setting
Assignment
Application example
Siemens Building Technologies
HVAC Products
4.31 Solar flow temperature sensor B62 (ZuFu13)
In the case of solar collector partial diagrams that use a 3-port valve (example A), the
valve will change to throughput (position 1) only when the required temperature differ-
ential at solar flow sensor B62 is reached and the "Changeover / startup delay" (oper-
ating line 307
) has elapsed. This ensures that the water in the collector circuit will be
EXP
evenly heated up before the actual charging of the storage tank starts.
In the case of solar collector partial diagrams with heat exchanger, solar flow sensor
B62 makes possible the control of the speed-controlled pump based on the collector
flow temperature (example B).
With no auxiliary function 13 (sensor B62), the pump in the respective circuit can only
be activated or deactivated, or the 3-port valve will change over on completion of the
"Changeover / startup delay" based on the temperature acquired by sensor B6.
The solar collector partial diagrams with which solar flow sensor B62 can be used show
the sensor with broken lines.
Setting range
--- / 101...109
The auxiliary function is activated as soon as solar flow sensor B62 is assigned to a
free terminal:
101...109
Solar flow sensor B62 can be assigned to a free sensor terminal be-
tween B101 and B109.
---
No assignment made and the auxiliary function is not activated.
The solar flow temperature sensor can be integrated in the diagram as follows:
Integration
Example A:
Sol 3
BwSp 5
Q3
B6
Q5
1
0
ZuFu 13
K9
B62
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
B62
Example B:
Sol 4
B6
B3
Q5
B31
Factory setting
---
BwSp 5
Q3
B3
ZuFu 13
B62
B31
K9
2392z16
105/348
CE1P2488en
18.10.2002
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