Commissioning Notes - Siemens LME39 Series Basic Documentation

Building Technologies Division
1.7

Commissioning notes

When commissioning the plant for the first time or when doing maintenance work, make
the following safety checks:
Safety check to be carried out
a) Burner startup with previously
interrupted line to the flame detector
b) Burner operation with simulated loss
of flame. For that purpose, cut off the
fuel supply
c) Burner operation with simulated air
pressure failure (not with atmospheric
burners)
Table 1: Safety checks
After installation and commissioning, of a plant, the parameterized values and settings
must be documented by the person/heating engineer responsible for the plant. These
data can be printed out with the help of the PC software ACS410, for example, or must
be written down. The documentation must be checked by the expert and then kept in a
safe place.
Warning!
On the OEM access level of the LME39..., it is possible to make parameter
settings that differ from application standards. When setting the parameters, it
must be made certain that the application will run safely in accordance with
legal requirements. If this is not observed, there is a risk of loss of safety
functions.
Prior to commissioning, the following points must be checked:

The correct time parameter settings, especially the settings of the safety and
prepurge times

The correct functioning of the flame detector in the event of loss of flame
during operation (including the response time); with extraneous light during the
prepurge time and when there is no establishment of flame at the end of the
safety time.

Air pressure

Safety loop (e.g. safety limit thermostat)

Minimum gas pressure (gas pressure switch)
Basic Documentation LME39...
1 Safety notes
Expected response
Delivery state (factory setting):
Lockout at the end of safety time
 Max. 3 repetitions
(can be parameterized)
Lockout
 Max. 3 repetitions
(can be parameterized)
Immediate lockout
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CC1P7106en
08.12.2017