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Building Technologies Division  Basic Documentation LME7...   CC1P7105en 
Infrastructure & Cities Sector    29.11.2011 
28 List of figures 
 
 
Figure 1: Mounting – mounting surface .........................................................................15
 
Figure 2: Example: Modulating gas burner....................................................................21 
Figure 3: Ionization input at AC 120 V/AC 230 V ..........................................................34 
Figure 4: Measuring circuit for ionization probe.............................................................35 
Figure 5: Measuring circuit for QRA... ...........................................................................36 
Figure 6: Dimensions of LME7... ...................................................................................37 
Figure 7: Diagnostics of cause of fault...........................................................................42 
Figure 8: Inputs/outputs.................................................................................................44 
Figure 9: Flame signal input X10-06..............................................................................45 
Figure 10: Safety Loop X3-04........................................................................................46 
Figure 11: Inputs for external load controller ON/OFF X5-03........................................46 
Figure 12: Air pressure switch X3-02 ............................................................................47 
Figure 13: Program sequence PME71.401... for connection diagram fuel train (G)......48 
Figure 14: Connection diagram fuel train gas direct ignition (G), 1-stage .....................50 
Figure 15: Connection diagram fuel train gas direct ignition (G), 2-stage .....................50 
Figure 16: LME71.000...: Inputs and outputs/internal connection diagram ...................52 
Figure 17: Program sequence PME71.402... for connection diagram fuel trains 
(G)/Gp1/1) ..............................................................................................................55
 
Figure 18: Connection diagram fuel train gas direct ignition (G), 1-stage .....................57 
Figure 19: Connection diagram fuel train gas pilot ignition 1 (Gp1/1), 1-stage .............57 
Figure 20: LME71.000...: Inputs and outputs/internal connection diagram ...................59 
Figure 21: Program sequence PME71.901... for connection diagram fuel train (G)......63 
Figure 22: Connection diagram fuel train gas direct ignition (G), 1-stage .....................65 
Figure 23: Connection diagram fuel train gas direct ignition (G), 1-stage, with valve 
proving....................................................................................................................65
 
Fig. 24: Valve proving with separate pressure switch ...................................................66 
Figure 25: LME71.000...: Inputs and outputs/internal connection diagram ...................69 
Figure 26: Program sequence PME72.521... for connection diagram fuel trains 
(G)/Gp1/1) ..............................................................................................................75
 
Figure 27: Connection diagram fuel train gas direct ignition (G), 1-stage .....................77 
Figure 28: Connection diagram fuel train gas direct ignition 1 (Gp1/1), 2-stage ...........77 
Figure 29: Connection diagram for LME72.000... with actuator SQM4... (example 1) ..78 
Figure 30: Connection diagram for LME73.000... without actuator SQM4... .................79 
Figure 31: LME72.000...: Inputs and outputs/internal connection diagram ...................81 
Figure 32: Program sequence PME72.541... for connection diagram fuel trains 
(G)/Gp1/1) ..............................................................................................................84
 
Figure 33: Connection diagram fuel train gas direct ignition (G), 1-stage .....................86