Siemens LMV5 Series Technical Instructions page 338

Linkageless burner management system
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Technical Instructions
Document No. LV5-8000
Hot Standby on a Steam Boiler with an RWF50 or RWF55 (continued)
LMV5 with an RWF5x for Hot Standby Control Only
Procedure
1. Wire the RWF5x to the LMV5 as shown in Figure 2.
Figure 2: LMV5 to RWF5x Hot Standby Only Wiring
2. Set the LMV5 for load controller operating mode "ExtLC X5-03" through the following
menu path:
Params & Display > LoadController > Configuration > LC_OptgMode =
ExtLC X5-03
3. Set the following parameters in the RWF5x controller. For more information, obtain
Siemens Document No. U7866 for the RWF50 or Document No. U7867 for the RWF55 at
www.scccombustion.com.
ConF > Cntr > SPL = setpoint range lower limit
ConF > Cntr > SPH = setpoint range upper limit
OPr > SP1 = hot standby setpoint
PArA > HYS1 = burner on for hot standby
PArA > HYS3 = burner off for hot standby
ConF > InP > InP1 > Sen1 = temperature sensor type
Appendix A
Page 8
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LMV Series
SCC Inc.

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