Siemens LMV52.240B1 - Dual Fuel Procedure

LMV Series Technical Instructions
Document No. LV5-80
00
SCC Inc. Page 41 Appendix A
VFD Bypass (continued)
Dual Fuel Procedure
1. Wire the LMV52, V
FD, and motor contactors as shown in Figure 15.
Figure 15: Wiring for a Dual Fuel VFD Bypass
2. Ensure the VFD is activated on gas, and deactivated on oil. This can be done through
the following menu paths:
Params & Display > RatioControl > Gas Settings > VSD = activated
Params & Display > RatioControl > Oil Settings > VSD = deactivated
3. Ensure the LMV52 is not set up for continuous purge. This can be done through the
following menu path:
Params & Display > BurnerControl > Configuration > ConfigGeneral >
ContinuousPurge = deactivated
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