AERCO KC Standard to Low NOx Convertion Instructions - Manual (Page 14)

14
IMPORTANT
It is important that the adjustment screw be installed to a depth of 2 inches
from the top of the regulator housing. This will simplify combustion calibration
of the unit after all low NOx modifications are completed.
4. Replace the adjustment screw and rotate the screw clockwise to a depth of 2 inches from the
top of the regulator housing.
5. Replace the regulator cap and gasket and ensure that the cap is firmly secured. This
completes the modification of the Differential Gas Pressure Regulator.
REGULATOR CAP
CAP GASKET
ADJUSTMENT
SCREW
SPRING
(PARTIALLY
REMOVED)
DIFFERENTIAL GAS
PRESSURE REGULATOR
Figure 12. Differential Gas Pressure Regulator Modification