Beckett CF1400 manual Initial Air Settings, Set Appliance Limit Controls

				Section: Prepare the Burner for Start-up
Initial Air Settings		round surface of the shafts afterward.
If your burner was built for a specific OEM (Original		The test for proper alignment is to disengage the damper
		motor from its shaft using the disengaging pin (Item G in
Equipment Manufacturer) application, the “Mfr’s
		Figure 17) and rotate the damper plate to its full closed
Settings” label (see Figure 1) will indicate the application
		position. The position indicator should point to 0° within
and the initial air settings made at Beckett. Please verify
		+ 5° tolerance.
those settings using the following procedure.
If your burner was not built for a specified application,		Figure 17 – Damper Motor
the following steps outline the procedure for initially
setting the damper (these settings may be different from
settings specific to a particular OEM).
Refer to Figure 17 and Tables 4a or 4b, for this
procedure.
1. Remove the cover screw (A) then the cover (B) and
set aside.
2. Push in on pin (B) to disengage the motor from the
damper shaft and cam stack. Rotate the damper
shaft by hand to place the adjustment cams in a
position where their adjustment scale can be easily
seen. Release pin (G) to secure the damper shaft
and cam stack to the motor.
3. Using the wrench (C) supplied with the damper
motor, adjust the blue low fire cam (D) to the initial
setting listed in Table 4.
4. Using the same wrench, adjust the red high fire
cam (H) to the initial settings listed in Table 4.
5. To adjust the high fire transition, use a small straight
edge screwdriver. Turn the white adjustment screw
located in the orange transition cam (J) until the
cam indicator is half way between the high and low
settings on the scale.
6. After setting all the cams, make sure the damper
shaft and cam stack is set between its low fire
setting and its high fire setting. (If you don’t it may
not move when it is powered.) Push in pin (G),
move the damper by hand so that notch (E) is
between the low fire setting and high fire setting		Legend (Figure 17)
on scale (F), then release pin (G) to re-engage the
motor. When the motor is powered it will go to its			A	Cover screw	F	Damper motor scale
low fire setting.		B		Cover	G	Disengaging pin
This initial setting should be adequate for starting the		C		Wrench	H High fire cam (red)
		D		Low fire cam (blue)	J	Transition cam (orange)
burner at low fire. Once the burner is in operation,
		E		Cam notch
the air setting will be adjusted for best performance as
discussed later in this manual. Don’t forget to re-install		Set Appliance Limit Controls
the cover after all adjustments have been made.
	The damper plate is attached	y	Set the appliance limit controls in accordance with
			the appliance manufacturer’s recommendations.
	by screws to its shaft, and bears
			Move the low-fire hold switch (not shown) to the low
against a flat on the shaft for alignment. The shaft is		y
secured to the damper motor by a sleeve coupling with			fire hold position. This will hold the burner in low fire
two setscrews bearing against the damper shaft and two			during initial start-up.
more against the motor shaft. The motor shaft has a
flat matching the one on the damper shaft. The flats on		Prepare the Fuel Unit for Air Venting
the damper shaft and the motor shaft should be aligned
so that the position indicator in the damper motor reads		○ To vent air from one-pipe oil systems, attach a clear
accurately. The best way to align the flats is to tighten				hose to the vent plug on the fuel unit. Provide a
the set screws that bear against the flats on the shafts				container to catch the oil. Loosen the vent plug.
first, and then tighten the ones that bear against the		○ Vent the air as described under ‘Start the Burner’.

CF1400/CF2300 Burner Manual

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