Beckett CF 2500/ 3500 instruction manual Set dimension Z, Insert burner

Instruction Manual – Model CF2500/CF3500 Oil Burner

Figure 5 – Nozzle line assembly in burner

Z	Measure dimension Z from		d	b
	front (flat) face of head to	a
	end of air tube, as shown.

c

Figure 6 – Adjusting plate assy.

d e f c g

3508

Legend (Figures 5 and 6)

Measure dimension Z from the flat

3507 surface between (not on) the raised fins.

3506

❏Set dimension Z

•Replace the rear access door on the burner, making sure that the adjusting plate assembly is now securely held in place.

•Loosen acorn nut d in Figure 5. Slide the nozzle line and plate assembly un- til dimension Z in Figure 5 is:

CF2500A/CF2500 1³⁄₄" ± ¹⁄₁₆" CF3500A (tube KM) 2⁵⁄₈" ± ¹⁄₁₆" CF3500A (tube KR) 3⁹⁄₁₆" ± ¹⁄₁₆"

•When dimension Z (from end of air tube to flat area of front face of head) is cor-

aAdjusting plate assembly

bSpline nut for securing nozzle line

cBottom acorn nut

dTop acorn nut (for setting dim. Z only)

eIndicator adjusting plate

fSecondary adjusting plate

gPrimary adjusting plate

rectly set, tighten acorn nut d. Verify that the adjusting plate assembly is properly seated at the rear access door, as shown in Figure 5.

•Attach the oil line from the oil valve to the nozzle line end. Tighten se- curely.

•Before proceeding, check dimen- sion Z once again. Loosen acorn nut d if necessary to reposition the nozzle line. Once dimension Z is set, do not loosen acorn nut d again. For the setting of acorn nut c, refer to page 12.

Figure 7 – Burner installed in appliance front

H

J

D 1¾"

a b

3509c

Legend

K

❏Insert burner

• Position the burner in the front of

the appliance and loosely tighten

the nuts on the mounting studs. The

burner should be pitched downward

2° as shown in Figures 3 and 7.

• See Figure 7. Install the pedestal

support kit (recommended) by at-

taching the ³⁄₄" npt flange (item a)

to the bottom of the burner using

the (4) #10 screws provided. Cut and

thread (one end only) a ³⁄₄" pipe

nipple (item b) with length 14.5

inches less than dimension D in Fig-

ure 7. Thread the pipe into the

flange. Then slip the pipe end into

the floor flange (item c).

• Secure the burner to the appliance

by tightening the nuts on the burner

flange mounting studs. Then secure

H	Housing total length — 20"
J	Center to bottom of housing — 14¹⁄₂"	K Overall housing height — 22³⁄₄"

the pedestal support floor flange set

screw to the pipe.

Form 6104 BCF-35-R0699 7