Siemens LMV36.520A1 - (Burner Flange) X3-03, Pin 1 and 2; Input for External Controller (on; OFF) X5-03, Pin 1

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 7 Basic unit 25.09.2013
7.3.2 (Burner flange) X3–03, pin 1 and 2
End switch burner flange (component of safety loop).
LMV...
Bild 274e/1010
X3-03
End switch burner flange
(component of safety loop)
“L” for end switch burner flange
Flange
2
1
Figure 17: Burner flange X3-03
For error diagnostics and parameters, refer to chapter Safety loop.
7.3.3 Input for external controller (ON / OFF) X5–03, pin 1
When the external control loop is closed, the internal input message Heat request is
generated.
A heat request exists when the external controller signal is pending and, depending on
the configuration, a load controller calls for heat (refer to chapter Connection of load
controllers).
When there are no more requests for heat, the burner shuts down. The fuel valves are
closed, either immediately when the timer has elapsed, or when the low-fire position is
reached, depending on the parameter settings (refer to chapter End of operating
position).

Note
Burner startup takes place only when this contact is closed.
LMV...
Bild 368e/1010
X5-03
External load controller (On / Off)
Internal fuel selection 1
“L” for control
On / Off
4
3
2
1
Figure 18: Inputs for external load controller ON / OFF X5-03