Siemens LMV36.520A1 - Fuel Selection; Reset X8-04, Pin 1

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 7 Basic unit 25.09.2013
7.3.10 Fuel selection
The fuel selection is made by an external connected switch at AGM60...
The selection made is transmitted to the LMV36... basic unit via 2 signal lines (internal
fuel selection 0 + 1).
Fuel 0 = 1, Fuel 1 = 0  Fuel 0 is selected
Fuel 0 = 0, Fuel 1 = 1  Fuel 1 is selected
Fuel 0 = 0, Fuel 1 = 0  Line interrupted  Safety shutdown / lockout
Fuel 0 = 1, Fuel 1 = 1  Reset
Next time the burner is started up after shutdown or safety shutdown, the new fuel is
used.
After fuel changeover, any manually selected output or output called for by the BAC
system is cancelled and automatic operation is activated, thus enabling an automatic
restart with the new fuel if there is a request for heat.
Exception:
The manual off function for manual output and burner off (output = 0) via the BAC
system are maintained.
Bild 373e/0409
AGM60...
Internal fuel selection 1
Internal fuel selection 0
X31-02
01P
LMV...
X5-03
4
3
2
1
1
2
Figure 27: LMV36... with AGM60…: Fuel selection
7.3.11 Reset X8-04, pin 1
Input for connection of a reset button. The basic unit can be reset or manually locked via
this input (refer to chapter Reset / manual locking).
LMV...
Bild 374e/0409
X8-04
Reset (manual lockout)
L
Figure 28: Reset X8-04