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Siemens Switzerland Ltd
User manual RVS61.843 CE1U2355en_02
HVAC Products 6 The settings in detail 23. November 2007
Function output QX4-Mod
This setting determines the pump to be modulated.
Modulation is effected via a triac (full-wave control).
Line no. Operating line
5909 Function output QX4-Mod
None
Source pump Q8 / fan K19
DHW pump Q3
DHW interm circ pump Q33
Instant DHW heater Q34
Collector pump Q5
Collector pump 2 Q16
Solar pump buffer K8
Solar pump ext exch K9
Solar pump swi pool K18
Heat circ pump HC1 Q2
Heat circ pump HC2 Q6
Heat circ pump HCP Q20
Observance of the minimum and maximum loads according to the technical data is
mandatory.
Sensor input BX1, BX2, BX3, BX4, BX5
Line no. Operating line
5930,
5931,
5932,
5933,
5934
Sensor input BX1, BX2, BX3, BX4, BX5
None
Buffer sensor B4
Buffer sensor B41
Collector sensor B6
DHW sensor B31
Hot-gas sensor B82
Refrig sensor liquid B83
DHW charging sensor B36
TWW Zapffühler B38
DHW circulation sensor B39
Swimming pool sensor B13
Collector sensor 2 B61
Solar flow sensor B63
Solar return sensor B64
Buffer sensor B42
Common flow sensor B10
Cascade return sensor B70
Solar temp sensor 1
Solar temp sensor 2
Depending on the selection made, setting of the sensor inputs assigns appropriate
extra functions to the basic diagrams. For more detailed information, refer to section
“Plant diagrams“.
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