Grain Systems PNEG-526 - Manual (Page 101)

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CORPORATION
MUNCIE, INDIANA, USA
INDUSTRIAL COMBUSTION EQUIPMENT AND VALVES
Maxon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior notice.
Series NP-LE AIRFLO ® Burners
Start-Up Instructions
(cont'd.)
The desired maximum capacity may be
achieved with less than full control valve open-
ing. Mark with a pencil or scribe the point on
valve crank arm where the desired maximum is
obtained, then return crank arm to low position
and shut system off.
10. If using Maxon Series “CV” Valve, reconnect
control motor linkage (with control motor in low
or minimum position) by loosening toggle clamp
screw 1 and moving toggle clamp 2 along the
connecting linkage to a point where toggle
clamp bolt 3 can be placed at the outermost
position of control motor crank slot. Then tighten
toggle clamp screw 1, thus fixing clamp to
linkage.
Allowing toggle clamp bolt 3 to slide in the crank
arm slot, cycle control motor towards its maxi-
mum position and move fuel control valve crank
4 to the previously-determined maximum firing
rate position. Tighten toggle clamp bolt 3, thus
fixing clamp to motor crank.
Cycle control motor back to minimum, watching
carefully that it does not bind before reaching
minimum.
If it is stopped or if minimum is not reached,
loosen toggle clamp screw 1 and move toggle
clamp along the connecting linkage so both
motor and valve can assume their minimum
positions. Then retighten toggle clamp screw 1.
Refine adjustment by cycling several times
between low and high control motor position
while readjusting toggle clamp bolt 3 as neces-
sary until control motor travels through its full
cycle while moving control valve crank arm from
its minimum only up to the desired maximum
previously determined.
11. Relight burner and cycle control system from
low to high fire several times to observe per-
formance. Refine adjustments of pilot and main
burner minimum if necessary.
Warning: Test every UV Flame Sensor
System for dangerous spark excitation from
ignitors and other burners, as well as other
possible sources of direct or reflected UV
radiation.
12. Check carefully that all interlocks and limits are
in full operating condition. Before system is
placed into full service, instruct operator person-
nel on proper start-up, operation and shut-down
of system. Establish written instructions for
reference.
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