Commissioning Notes - Siemens LME7 Series Basic Documentation

Duties of the expert when making the approval tests
Action
a) Burner startup with disconnected flame detector
b) Burner startup with flame detector exposed to ex-
traneous light, e.g. to incandescent light with detec-
tors for visible radiation, quartz-halogen bulb or ci-
garette lighter flame with detectors for UV radiation
c) Simulation of loss of flame during operation. For
that, disconnect the flame detector in the operating
position and maintain that state
d) Check the plant's response time with loss of flame
during operation. For that purpose, manually dis-
connect the fuel valves from power and check the
time from this moment the burner control requires
to turn off power to the valve
Building Technologies
HVAC Products
1.5

Commissioning notes

•
For display of the flame on the AZL2..., following general conditions apply:
- Display is subject to various component tolerances so that deviations of
±10 % can occur
- Note that for physical reasons there is no linear relationship between flame
display and detector signal values
The functions of the following available or required input state signals must be checked:
•
Air pressure
•
Minimum gas pressure and maximum gas pressure or POC
•
Safety loop (e.g. safety temperature limiter (SBT))
Further checks may be required, depending on the field of use and the relevant stan-
dards.
After installation and commissioning, 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 ACS410 PC software, for example, or must be
written down. The documentation must be checked by the expert and then kept in a sa-
fe place.
Caution!
On the OEM access level of the LME7..., it is possible to make parameter set-
tings that differ from application standards. When setting the parameters, it
must be made certain that the application will run safely in accordance with le-
gal requirements.
Basic Documentation LME7...
1 Safety notes
Check / response
Lockout at the end of 1st safety time (TSA1)
Lockout at prepurge time (t1)
Lockout or restart, depending on the burner control's
configuration
Turning off power to the fuel valves by the burner con-
trol within the period of time permitted for the respective
time of plant
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CC1P7105en
13.10.2009