Siemens LMV36.520 Series - Continuous Operation; Fuel Changeover; Extra Fuel Selector

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 2 Makeup of structure / function description 25.09.2013
2.4.2 Continuous operation
The LMV36... basic unit together with the AGM60... is not approved for continuous
operation.
In the case of intermittent operation in connection with the LMV36..., an ionization probe
or flame detector QRA..., QRB... or QRC... can be used.
2.4.3 Fuel changeover
The fuel selection is made by an external connected switch at AGM60...
The changeover logic of the AGM60... generates feedback signals
Fuel 0 and Fuel 1
which are fed to the
LMV36... basic unit for evaluation.

Note
Fuel changeover via the AZL2... or a BAC system is not technically possible.
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 8: LMV36 with AGM60: Fuel changeover
The next burner start after shutdown or safety shutdown takes place with the new type
of fuel.
After fuel changeover, any manually selected output or output called for by the BAC
system is cancelled and automatic operation is activated, thus enabling 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.
2.4.4 Extra fuel selector
AGM60...
X31-01
1
SWI
Fuel PE N L
Bild 266/0309
Figure 9: AGM60... extra fuel selector