Specifications

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3-9
SECTION 3 VTG-IOM-2012-1001 OPERATION
! WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Non-Fulton product information is for
reference purposes only. No Fulton
document should substitute for full
review of documentation available
from the component manufacturer.
position with the arrow keys.
» Press Enter to con rm the new value.
» Use the down arrow to move the air servo setting if needed. Press
Enter to select the servo, use the arrow keys to set the new value.
Press Enter to con rm this.
¡ Setting Modulation
Before releasing the boiler to modulation, the boiler will drive to low  re. It is
necessary to set combustion through the entire range of modulation  rst to
enable high  re to be reached. Once high  re is achieved, the incoming gas
pressure can be set. Fine tuning of the servo setting throughout the range should
be performed only once high  re settings are con rmed.
Proceed as follows:
1. Under Params&Display > RatioControl > ProgramStop, change the
program stop to deactivated by using the arrow keys. Con rm that
‘deactivated’ is acknowledged in the current  eld.
2. This change will allow the burner to modulate. The burner will now drive
to low  re. Remember, it is only important at this stage to set low  re to be
stable and with clean combustion. Exact setting is to be performed once
high  re is con rmed.
3. Press Escape  ve times to get back to the main menu.
4. Observe the status of the burner by going to OperationalStat >
NormalOperation.
5. Verify the  ame signal on the display, measure input if fuel meter is
available. If not match last elbow pressures and combustion from test  re
sheet. Adjust the burner as needed. To adjust the servo position, refer to
Setting Low Fire section.
¡ Setting Low Fire
NOTE: ´ As soon as a servo position is altered, the servo will move to that position.
Only change servo settings by a maximum of 0.5 degrees at a time before
verifying combustion.
Proceed as follows:
1. Go to Params&Display > RatioControl > GasSettings (or OilSettings
depending on fuel) > CurveParams.
2. Wait for the spinning line on the left to disappear. Press Enter. The number
1 should appear to the right of the cursor, this is the Point Number.
3. Press Enter once. Select ChangePoint by pressing the arrow keys to
highlight and then press Enter to select. This will cause the servo motors to
move to this low  re point.