FULTON Endura - Page 55

Questions? Please Contact Your Local Manufacturer’s Representative
3-5
SECTION 3 EDR-SOLA-IOM-2022-0216 OPERATION
! WARNING
Non-Fulton product information is for
reference purposes only. No Fulton
document should substitute for full
review of documentation available
from the component manufacturer.
4 CAUTION
When making changes to the controls
prole, a combustion analyzer is
required.
FIGURE 27  GAS DELIVERY SYSTEM
8. Changes to either the Shutter or Oset Adjustments on the valve will alter
combustion throughout the range. Once combustion setup is completed
at low and high re, perform the following steps a minimum of ten times
to verify O2 repeatability:
A. Ramp the boiler from low re RPM to high re RPM.
B. From the high re RPM, ramp back to the low re RPM, record the
combustion O2% measurement.
C. Turn the boiler o and allow post-purge to complete.
D. Turn the boiler back on and set to the low re RPM rate.
E. Verify O2% at low re is consistent with the value recorded in Step B.
If it is not, reference Valve Oset Adjustment in Step 6 for low re RPM
adjustments.
9. The low re manifold gas pressure absolute value must never be lower
than as recorded on the factory Test Fire Report. If the absolute value of
the measured low re manifold gas pressure is too low, increase the low
re RPM setting until the manifold meets or exceeds the factory Test Fire
Report low re manifold gas pressure valve.
10. Verify documented combustion settings are in the range specied by
Table 9.
NOTE:  Proper set up of the Ignition Enrichment gas is crucial to the light-o of
the boiler and requires verication in the eld during initial commissioning. The
ignition enrichment setting must be veried during the annual preventative
maintenance.
High Gas Pressure
Switch
High Fire Shutter
Adjustment
Manifold Pressure
Test Port
2.5 mm Allen Low Fire
Oset
Low Gas Pressure
Switch
MBC Supply Gas
Pressure Test Port
Enrichment Regulator
(Integral Vent Limiter)
Enrichment Valve with
Outlet Test Port