Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.35.4 Burner capacities
EN 676 (Nov 2003)
120 kW >120 kW
Air supply failure – fan speed
-- during pre purging
Air flow failure during prepurge shall at least proceed to safety shutdown.
Safety shutdown followed by a single attempt at restart is permitted.
If this restart attempt fails, then non-volatile lock-out shall occur.
Non-volatile lockout
Air supply failure – fan speed
– during ignition
Safety shutdown followed by a single attempt at restart is permitted.
If this restart attempt fails, then non-volatile lockout shall occur.
Non-volatile lockout
Air supply failure – fan speed
– in operation
Safety shutdown followed by a single attempt at restart is permitted.
If this restart attempt fails, then non-volatile lockout shall occur.
Non-volatile lockout
Air flow rate during prepurging
under the demanded value – air
pressure switch
Safety shutdown
or
the prepurge shall be continued until the required air rate is restored,
provided that the total controlled prepurge time is not reduced.
Fault during establishment of
flame
Maximum 3 restart attempts, whereby each restart calls for the complete start program.
After this action, the flame signal must be available at the end of the first safety time of the restart
attempt permitted last.
If not, the system must respond immediately by triggering safety shutdown, followed by non-volatile
lockout (reached by setting the repetition counter to 4).
For the restart, a value other than the forced prepurge time (T_ZWANG) can be set via the prepurge
time (T_VOR).
or
Immediately safety shutdown followed by non-volatile lock-out (reached by setting the repetition
counter to 1).
Loss of flame during operation Restart with full startup sequence.
After this action, the flame signal must be available after the permitted restart attempt when the
burner reaches its operating position.
If not, the system must respond immediately by triggering safety shutdown, followed by non-volatile
lockout (reached by setting the repetition counter to 4).
For the restart, a value other than the forced prepurge time (T_ZWANG) can be set via the prepurge
time (T_VOR)
or
Immediately safety shutdown followed by non-volatile lock-out (reached by setting the repetition
counter to 1).
Standard: DIN EN 483 (June 2000) <= 70 kW; EN 297; EN 298; DIN EN 656 (January 2000) >70 kW ...
< 300 kW; DIN EN 13836:2006(D) >300 kW ... 1000 kW; DIN EN 15417:2006 >70 kW ... <= 1000 kW;
DIN EN 15420 (DRAFT):2006 >70 kW ... <= 1000 kW

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English