CLEAN BURN CB-200-CTB, Operator'S Manual, Page: 74 / 148

Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
6-2
AIR REGULATOR
LOCKING NUT
AIR GAUGE
OIL GAUGE
COMBUSTION
AIR BAND
SLOT COVER INSTALLED
Preparing the Burner for
Startup (continued)
4. Refer to Figure 6A. Loosen the
locking nut on the air regulator.
5. Turn the adjustment knob on the
air regulator counterclockwise
until 1/2" of the threads on the
knob are exposed. DO NOT
back the knob all the way out.
NOTE: The air gauge will not
show any pressure until the burner
starts. Before starting the burner
for the first time, it is very
important to turn the air regulator
completely OFF as described.
6. Initial Adjustment of the
Combustion Air Band
Rotate the combustion air band
to adjust it to the appropriate slot
opening as listed in the
following
Initial Adjustment
Chart . Use a ruler to accurately
set the slot opening at the widest
section of the slot.
Figure 6A - Component Detail of the CB-551-H3 Burner
(CB-525-S2 Burner is similar)
WARNING: The combustion air band must be properly adjusted to ensure that the burner
ignites and burns correctly. DO NOT attempt to start the burner with the combustion air band
wide open or completely closed. The burner may not ignite correctly. Failure to heed this warning may
result in a fire or explosion hazard.
IMPORTANT NOTE: This initial setting of the combustion air band will allow you to start the burner.
You will fine tune the combustion air band further as described later in these instructions.
ATTENTION: The settings shown in the chart below are only initial adjustments. Final
adjustments must be done by inspecting the flame length according to the illustrations
provided on the following page.
NOTE: The oil pressure is automatically adjusted by the metering pump.
Initial Adjustments for CB-200-CTB
NOTE:
Only Gearmotor part #33507 may be used with the CB-200-CTB.
Maximum Input = 200,000 BTUH @ 1.4 GPH per CB 525-S2 Burner
Oil Type Oil PSI / Flame Length Air PSI Air Band Nozzle
#2 Fuel Oil* check flame length 14 3/8" - 1/2" 9-5
Used Crankcase Oil check flame length 14 3/8" - 1/2" 9-5
Used ATF check flame length 18 3/8" - 1/2" 9-5
Used Hydraulic Oil check flame length 14 3/8" - 1/2" 9-5
#4 and #5 Fuel Oils check flame length 18 3/8" - 1/2" 9-5