Beckett CF1000 manual ‰ Adjusting plate assembly Figure, ‰ Initial head position Figure

‰Adjusting plate assembly (Figure 11)

Make sure spline nut (item b) and bottom acorn nut (item c) are loose.

‰Initial head position (Figure 11)

yThe indicator plate assembly (item e) markings correspond to head position settings. Slide the secondary adjusting plate (item f) toward the rear of the burner until the number on the indicator plate corresponds to the initial head setting given in Table 4 for the desired firing rate.

yFigure 11 shows a typical example, with a head setting of 6.

yWhen the head position has been set, tighten the bottom acorn nut (item c) and the spline nut (item b).

‰Initial air settings (Figure 12)

yLoosen the screw holding the air adjusting plate (item m). Set the air to the desired rate. (The numbers on this plate correspond to the approximate firing rate settings given in Table 5.)

yRotate the air adjusting plate until the lower edge of the pointer is opposite the number from Table 5 corresponding to the desired firing rate.

yThis initial setting should be adequate for starting the burner. Tighten the screw to secure the adjusting plate. Once the burner is in operation, the air setting will be adjusted for best performance as discussed later in this manual.

yFollow the procedures given later in this manual for fine- tuning the air settings.

Figure 12 - Air damper assembly

l

Legend

hDamper label - position indicator for air adjustment plate k Damper indicator - permanently attached to damper

mAir adjusting plate - sets air position

lAir adjusting plate screw - locks plate position

Table 4 - Initial indicator adjustment plate settings (head position)

Approximate	Firing rate, gph
adjusting
	Tube “A”	Tube “B”
plate setting
0	-	-
1	-	-
2	4.00	-
3	6.00	-
4	7.00	7.00
5	8.00	8.00
6	10.00	10.00
7 - 12	-	-
	These settings are approximate, and
NOTE	can vary depending on actual job con-
	ditions and overfire pressure.

Table 5 - Initial air adjusting plate settings (damper position)

Approximate	Firing rate, gph
head settings	Tube “A”	Tube “B”
0	4.00	4.00
1	4.50	7.50
2	5.00	8.00
3	6.00	9.00
4	7.00	10.00
5	7.50	-
6	8.00	-
7 - 10	10.00	-
	These settings are approximate, and
NOTE	can vary depending on actual job con-
	ditions and overfire pressure.

14 Form 6104 BCF10-R06