Siemens LMU64 Series - Assignment of Hydraulic Diagrams to the Outputs of the LMU

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Siemens Building Technologies Basic Documentation LMU54... / LMU64... CC1P7494en
HVAC Products 14 Addendum: Hydraulic diagrams BMU 07.11.2002
14.2 Assignment of hydraulic diagrams to the
outputs of the LMU…
The LMU… has 3 relay outputs (K1- K3) for pumps and valves.
In addition, a pump can be modulated via the PWM output (if required, a pump can be
connected externally to AC 230 V mains voltage).
Additional outputs are provided by the mixing valve clip-in module. The outputs are
assigned depending on the hydraulic system used:
Hydraulic system K1 K2 K3 PWM pump
AGU2.500
(mixing valve
clip-in module)
X52-02
Diagram 4 Q1 – – Q1 –
Diagrams 2, 5 Q1 – Q3 Q1 –
Diagrams 3, 6, 7 Q1 – UV Q1 –
Diagram 9 Q1
4)
Q3.2 Q3.1 Q3.1 –
Diagram 10 Q1 Q3 UV Q1 –
Diagram 36 Q1 – – Q1 Q2
Diagrams 34, 37 Q1 – Q3 Q1 Q2
Diagram 35 Q1 Y1 UV Q1 Y2
Diagrams 38, 39 Q1 Y1 UV Q1 Y2
Diagram 41 Q1
4)
Q3.2 Q3.1 Q3.1 Q2
Diagram 42 Q1 Q3 UV Q1 Q2
Diagram 44 Q1 – UV Q1 Q2
Diagram 48 – Q8
1)
– – Q2
Diagrams 52, 68 Q1 Q8
1)
– Q1 Q2
Diagrams 50, 53, 66, 69 Q1 Q8
1)
Q3 Q1 Q2
Diagrams 51, 54, 55 Q1 Y1 UV – Q2
Diagrams 57, 73 Q1
4)
Q3.2 Q8 Q3.1
2)
Q2
Diagrams 58, 74 Q8
3)
Q3 UV Q1
2)
Q2
Diagrams 43, 59, 75 Q1
4)
Q3.2 UV Q3.1
2)
Q2
Diagrams 60, 76 Q1 Q8 UV Q1 Q2
Diagram 64 – Q8
1)
– – Q2
Diagrams 67, 70, 71 Q1 Y1 UV – Q2
Diagram 80 Q1 – – – –
Diagrams 81, 82, 84 Q1 – UV – –
Diagram 83 Q1 Q3 UV Q1 –
Diagram 85 Q1 – Q3 – –
Q1 Heating circuit pump UV Diverting valve
Q2 Flow pump Y1 Shutoff valve first heating circuit
Q3 DHW pump Y2 Shutoff valve second heating circuit
Q8 System pump
1)
System pump Q8 is controlled only if parameterized (Q8Fkt = 1)
2)
Pump is only switched off via PWM control, AC 230 V connection externally
3)
If Q8Fkt = 0: Control of Q1 (AC 230 V)
If Q8Fkt = 1: Control of Q8
4)
Q1 cannot be modulated
Legend