Siemens LMV37.420A1 User Manual

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Building Technologies Basic Documentation LMV37.4... CC1P7546en
HVAC Products Contents 01.12.2009
6.2.3 No flame at the end of safety time 1 (TSA1).....................................................32
6.2.4 Flame intensity ....................................................................................................32
6.2.5 Supervision of flame detector ............................................................................33
6.3 Digital inputs........................................................................................................34
6.3.1 Safety loop X3–04, terminals 1 and 2 ...............................................................34
6.3.2 (Burner flange) X3–03, terminals 1 and 2.........................................................35
6.3.3 Input for external controller (ON / OFF) X5–03, terminal 1..............................35
6.3.4 Inputs X5-03 terminal 2 and terminal 3 (Opening / Closing or stage 2 / stage
3) ..........................................................................................................................35
6.3.5 Air pressure switch (APS) X3–02......................................................................36
6.3.6 Pressure switch valve proving gas (P LT) X9–04 ............................................37
6.3.7 Pressure switch-min-gas (Pmin) / -min-oil, start release gas X5–01..............38
6.3.8 Setting the time for making the pressure switch test .......................................39
6.3.9 Pressure switch-max-gas (Pmax) / or POC contact / max-oil, start release oil
X5–02...................................................................................................................40
6.3.10 Reset X8-04, terminal 1......................................................................................42
6.4 Digital outputs......................................................................................................43
6.4.1 Output alarm, type No-SI X3–05, terminal 2.....................................................43
6.4.2 Fan motor contactor, type SI X3–05, terminal 1 ...............................................43
6.4.3 Fan continuous purging X3–05, terminal 3 .......................................................43
6.4.4 Output ignition (Z), type SI (IGNITION) X4–02.................................................44
6.4.5 Outputs fuel valves, type SI (V1...V3 / PV) X8–02, X7-01, X7-02...................45
6.4.6 Output safety valve (SV), type SI X6–03 ..........................................................45
6.4.7 Output for indication of operation X8-04, terminal 2 ........................................45
6.5 Program sequence .............................................................................................46
6.5.1 Time parameters.................................................................................................46
6.5.2 Valve proving.......................................................................................................47
6.5.2.1. Valve proving with separate pressure switch (P LT) X9-04.............................48
6.5.2.2. Valve proving via pressure switch-min-gas X5-01 ...........................................49
6.5.2.3. Lockout phase (phase 00)..................................................................................49
6.5.2.4. Safety phase (phase 01) ....................................................................................49
6.5.3 Special functions during the program sequence ..............................................50
6.5.3.1. Reset / manual lockout .......................................................................................50
6.5.3.2. Alarm upon start prevention ...............................................................................51
6.5.3.3. Possible start preventions ..................................................................................52
6.5.3.4. Repetition counter...............................................................................................53
6.5.3.5. Start without prepurging (as per EN 676) .........................................................55
6.5.3.6. Gas shortage program........................................................................................55
6.5.3.7. Program stop function ........................................................................................56
6.5.3.8. Forced intermittent operation (<24 hours) ........................................................56
6.5.3.9. Low-fire shutdown...............................................................................................56
6.5.3.10. Continuous fan....................................................................................................57
6.5.3.11. Test function for approval of burner – loss-of-flame test (TÜV test)...............58
6.6 Fuel trains (application examples).....................................................................59
− Gas direct ignition ..................................................................................59
− (Operating mode 1, 7, 14, 19)...............................................................59
− Gas pilot ignition 1 .................................................................................59
− (Operating mode 2, 8, 15, 20)...............................................................59
− Gas pilot ignition 2 .................................................................................59
− (Operating mode 3, 9, 16, 21)...............................................................59

Siemens LMV37.420A1 Specifications

General

Brand	Siemens
Model	LMV37.420A1
Category	Control Unit
Language	English