Max-Ox MX-900B Operator's Manual page 32

36. Manually adjust the Tertiary air gate to approximately 1/8 open of full
gate travel.
Note: this is an initial setting for the Tertiary air gate, and will be final
adjusted after the combustion chamber warms up.
37. Once the boiler return water temperature reaches 140 °F, the
combustion chambers are warmed up enough for final air adjustment.
38. Perform final adjustment of the Primary air gate as follows:
• Wide open for wet fuel. Lock gate position with thumb screw.
• No less than 50% open for dry fuel (ensures sufficient primary
air for stoker grate cooling). Lock gate position with thumb
screw.
39. Perform final adjustment of the Secondary air gate as follows: While
observing the flame profile above the primary grate (lower viewing
window), slowly change the position of the Secondary air grate as
necessary until the flame entering the mouth of the secondary
combustion chamber (immediately above the fuel pile) just begins a
tendency to be pushed down under the refractory ledge located at the
mouth perimeter of the secondary combustion chamber. Lock gate
position with thumb screw.
40. Perform final adjustment of the Tertiary air gate as follows: While
observing the flame profile adjust Tertiary air gate as necessary to
allow the flame in the secondary combustion chamber (as viewed
through the upper viewing window) to rise up beyond the viewing
window. Lock gate with thumb screw.
41. Start-up is now complete and combustion control is in automatic
mode.
42. Confirm Start-up is now complete and Automatic Combustion Control
is engaged as follows:
On Overview screen, confirm:
• Rotary Selector Switch icon screen indicates "On" (green)
• ID Fan icon indicates "On" (green)
• Circulator pump indicates "On" (green)
Max-Ox™ MX-900B Operators Manual, Rev. 0
Page 32 of 54