Siemens RVS41.813 User Manual page 175

Only RVS41..
Relay outputs QX...
Siemens Switzerland Ltd
HVAC Products
Line no. Operating line
5890 Relay output QX1, QX2, QX3, QX4, QX5, QX6, QX7, QX8
5891 None
Process revers valve Y22
5892
Hot-gas temp K31
5894
El imm heater 1 flow K25
5895
El imm heater 2 flow K26
5896 Diverting valve cool strat2 Y28
System pump Q14
5897
Cascade pump Q25
5898
Heat generator shutoff valve Y4
Electric immersion heater DHW K6
Circulating pump Q4
Collector pump Q5
Solar pump external exchanger K9
Solar controlling element buffer K8
Solar controlling element swimming pool K18
Electrical immersion heater buffer K16
H1 pump Q15
H2 pump Q18
H3 pump Q19
Heat circ pump HCP Q20
Diverting valve cooling Y21
Air dehumidifier K29
Heat request K27
Refrigeration request K28
Alarm output K10
Time program 5 K13
Heating circuit pump HC1 Q2
DHW controlling element Q3
Source pump Q8 / fan K19
Condenser pump Q9
Compressor stage 1 K1
Supplementary source control K32
Depending on the selection made, setting of the relay outputs assigns appropriate extra
functions to the basic diagrams. For detailed information, refer to section "Application
diagrams".
None
The relay output cannot be assigned any function. The relay is inactive.
Compressor stage 2 K2
Relay is used for the control of a second compressor (refer to compressor 2)
Process revers valve Y22
Control of process reversing valve Y22. The process reversing valve is required for
changeover from heating to cooling mode and for the heat pump's defrost function.
Hot-gas temp K31
The relay is energized when a connected hot-gas temperature sensor B81 or B82
exceeds "Setpoint hot-gas temp" (2849), and deenergized, when the temperature drops
by the switching differential (2850) below the setpoint. The type of contact (2851) can
be selected.
Electric immersion heater flow K25
The relay is used for the control of an electric immersion heater in the flow (K25) or, in
the case of a 2-stage electric immersion heater, for control of the first stage.
Electric immersion heater flow K26
The relay is used for the control of the second stage of an electric immersion heater in
the flow (K26).
Diverting valve cool strat2 Y28
User manual RVS61.843, RVS41.813
6 The settings in detail
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CE1U2355en_02
28. September 2009