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Siemens Building Technologies
Basisdokumentation LMV5...
CC1P7550en
HVAC Products
13.08.2004
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LMV51.140B1 .......................................................................................23
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LMV51.200A1 .......................................................................................23
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LMV51.200A2 .......................................................................................23
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LMV52.200A1 .......................................................................................23
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LMV52.200A2 .......................................................................................23
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LMV52.240A1 .......................................................................................23
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LMV52.240A2 .......................................................................................23
2.4
Block diagram inputs / outputs.......................................................................24
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Block diagram (cont‘d).......................................................................25
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Block diagram (cont‘d).......................................................................26
3
Fuel train applications (examples) .............................................................27
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Direct gas ignition..................................................................................27
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Gas pilot ignition 1.................................................................................27
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Gas pilot ignition 2.................................................................................27
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Fuel valve control program....................................................................27
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Fuel train applications (cont‘d) ..............................................................28
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Direct ignition with light oil, multistage ..................................................28
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Direct ignition with light oil, modulating .................................................29
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Fuel valve control program....................................................................29
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Direct ignition with heavy oil, multistage ...............................................30
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Direct ignition with heavy oil, modulating ..............................................30
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Fuel valve control program....................................................................31
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Dual-fuel burner gas / light oil with gas pilot ignition .............................32
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Fuel valve control program....................................................................32
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Dual-fuel burner gas / heavy oil with gas pilot ignition ..........................33
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Fuel valve control program....................................................................33
4
Burner control ..............................................................................................34
4.1
Description of inputs and outputs...................................................................34
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Flame signal input and flame detector X10–01 and X10–03 ................34
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Self-test function LMV5... / QRI... ......................................................34
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Separate flame supervision, only with LMV52... ...................................34
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Application example ..........................................................................35
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Implementation ..................................................................................35
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Technical data, flame supervision........................................................35
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QRI (suited for continuous operation) ...................................................35
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Connection diagram ..........................................................................35
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IONIZATION (suited for continuous operation) .....................................36
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QRB... (for intermittent operation only) .................................................36
4.1.1
Digital inputs ..................................................................................................37
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SAFETY LOOP X3–04..........................................................................37
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FLANGE X3–03 ....................................................................................37
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Inputs for external controller (ON/OFF) X5–03 .....................................37
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2 inputs (ON / OFF or STAGE2 / STAGE3) ..........................................38
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X5–03....................................................................................................38
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Air pressure switch (APS) X3–02..........................................................38
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Pressure switch-VP-gas / LT or closed position indicator (CPI) X9–03 39
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Pressure switch-min-gas, start release gas (PSmin-gas) X9–03..........39
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Start release gas X7–03 (only with LMV52...).......................................40
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Pressure switch-max-gas, (PSmax-gas) X9–03 ...................................40
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Pressure switch-min-oil (PSmin-oil) X5–01...........................................40