Honeywell SV2 Series User Manual page 109

Burner Load Specific Amplification Factor Adjustment
After setting the ignition parameters and successfully firing the burner, the amplification factor control characteristic should be
adjusted to meet the lambda (CO2) and O2 requirements at specific burner loads.
The SV2 Series valves offer the possibility to upload a pre-defined application/burner type specific Base Curve that contains the
amplification settings for up to 25 load points over the modulation range of the appliance/burner. The Base Curve is usually
defined in the OEM laboratory for a specific appliance type and capacity. To save and upload saved Base Curves, refer to the
Load Saved Curves and Valve Production Cloning sections of this manual.
After uploading the Base Curve to the valve, the amplification setting of the system needs to be calibrated/corrected for use
with the specific valve and application/burner. The calibration/correction is done using the Correction Curve, which offers a
minimum of four (at minimum and maximum burner load and two in between load points) and a maximum of 25 burner load-
specific calibration/correction factor settings. The amount of required setpoints depends on appliance-specific requirements.
The Correction Curve might typically be created and/or adjusted in the field.
NOTE: The valve must be powered for 1 hour in order for the embedded FARMOD heater to effectively warm up the device.
If the full hour is not provided, the programmed lambda and the excess air values might vary from the desired
values.
While in the Base/Correction Curve setup screen, to add more points, select the Start Point Commissioning button.
The burner must first be run to its minimum power and the amplification adjusted so that it runs at the desired CO2/O2 levels.
To lock the values, select the Set Min button.
Add the desired number of burner load-specific points as required by using the Add Generic (point) button.
The burner must then be run to its maximum power and the amplification adjusted accordingly. To lock the values, select the
Set Max (point) button.
Fig. 64: Base Curve Amplification Settings.
NOTES:
• The amplification factor adjustments made during normal burner operation (RUN mode) affect the amplification factor as
adjusted during the ignition setup.
• If the minimum and maximum loads are not set, the SV2 Series control will not allow a next startup of the burner if the system
is not in commissioning mode. Refer to the Set Min and Set Max buttons in
• After the Base Curve setup is completed, the Correction Curve needs to be set for at least 4 points. Minimum load, maximum
load and two points in between. If the Correction Curve is not defined, the system will not run without being in Installer or
OEM mode.
SV2 Series Safety Shut-off Valves
V2F, V2V
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Fig. 64.
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