Initial Settings - Webster SC Series Installation, Startup, Operation And Maintenance Manual

FM Modulation Gas Piping Diagram - Over 12,500 MBH Firing Rate
722172
The burner will be set at the factory for normal initial settings. These are only rough settings that must be adjusted at
startup to match the furnace, fuel pressure and environment of the specific application. These general settings are
covered in this chapter as a means of checking the burner or readjusting the burner if the settings are lost. Presets
can change during shipping.
COMBUSTION AIR CONTROL
Air Flow Interlocking Switch
ACTUATOR MOUNTINGS CAN BE BENT OR MOVED DURING SHIPMENT AND
INSTALLATION. THEY MUST BE CHECKED PRIOR TO OPERATION AND ANY FAULTS
CORRECTED. FAILURE TO CORRECT A MISALIGNED CONTROL WILL RESULT IN
PREMATURE FAILURE.
SC Manual
G. INITIAL SETTINGS
1. OIL NOZZLE POSITION
Panel
The oil nozzle will be adjusted at start-up and may be
Adjusting moved in or out from this initial setting.
Screw
2. AIR PROVING SWITCH
Air Proving
The air proving switch has been adjusted at the
Switch
factory for an initial setting. If the switch trips during
initial start-up, turn the adjustment screw CCW two
full turns to reduce the trip pressure setting.
CAUTION
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Initial Settings