Siemens LMV3 series Technical Instructions page 94

Technical Instructions
Document No. LV3-1000
9. With the burner off, stroke each valve / damper through its intended range of motion using the
SQM33... actuator that is now coupled to the valve / damper. This can be achieved by changing
the home positions of each actuator via parameters 501-506.
Verify that no binding will occur through the intended range of motion. Also note valves /
dampers where the fully open position is less than 90°. Once the full range of motion of the
valve / damper has been tested, set the home positions back to their intended settings.
10. Set the pre-purge and post-purge positions for all connected actuators via parameters 501-506.
For dual fuel burners this will need to be done for both fuels.
11. If the burner has a Variable Speed Drive (VSD) on the blower, it must be standardized. If the
burner is equipped with a VFD, see Section 5 in this literature if the VFD parameters are not
already set, and for a more detailed standardization procedure. PWM blowers are typically pre-
programmed and do not require any additional programmed. Once the VSD parameters are set,
standardize the VSD via parameter 641.
Once parameter 641 is set to 1, the air damper should open to its pre-purge position, and the
blower should ramp up, pause, and then ramp back down. If the value of parameter 641
changes back to 0, standardization was completed successfully. If the value changes to a
negative number, see error code 82 for the cause of the failure.
NOTE: Standardization will not occur if the safety loop is open. Make sure the safety loop is
closed before attempting standardization.
12. At this point, all other LMV3 parameters should be reviewed and set accordingly for the
individual burner requirements.
Section 3 of this literature explains every parameter in detail, and the most commonly used
parameters are shaded for easy reference.
Section 4 Page 16
LMV Series
SCC Inc.