Operating instructions

A. Adjusting Operating Controls
Instructions for each control are included. Refer to Table 8 for recommended settings for the first adjustment:
These settings can be changed after gaining familiarity with how system responds. If system does not give quite enough heat in very cold weather,
the high limit setting can be raised to 220°F. If more domestic hot water is required, the low limit setting can also be raised.
Table 7—Oil Burner Specifications
BASE
MODEL
BOILER
INPUT
(BTUH)
DELEVAN
OIL
NOZZLE
FIRING
RATE
(GPM)
HEAD-
ADJUSTMENT
OR
SETTING
LOW
FIRE
BAFFLE
AIR
SHUTTER
AIR
BAND
STATIC
PLATE
(IN.)
PUMP
PRESSURE
140
91,000* 0.50–80 B 0.65 F0 1-1/8 Yes 10 0 3-5/8 175 psig
105,000 0.65–70 B 0.75 F3 1-1/8 Yes 10 0 3-1/2 140 psig
140,000 0.85–70 B 1 F3 1-1/8 No 10 2 3-1/2 140 psig
210
126,000* 0.75–80 A 0.9 F3 1-1/8 No 8 0 3-1/2 140 psig
175,000 1.00–80 A 1.25 F6 1-1/8 No 10 0 3-3/8 140 psig
210,000 1.25–80 A 1.5 F6 1-1/8 No 10 2 3-3/8 140 psig
280
168,000 1.00–60 B 1.2 V1-0 No 10 1.5 2-3/4 140 psig
245,000 1.50–45 B 1.75 V1-2 No 10 4 2-3/4 140 psig
280,000 1.65–60 B 2 V1-4 No 10 5 2-3/4 140 psig
* Requires field-supplied accessory Low Fire Kit.
Pump is factory set at 140 psig. Raise pump pressure to 175 psig after installing low fire kit for 91,000 Btuh input.
Fig. 15—Beckett Burner Electrode Adjustments (For V1 280 Heads)
UNIT SIZE HEAD
DIMENSIONS (IN.)
NH
140
F0, F3 1/16 N/A
210
280 V1 1/16 7/32 to 9/32
A01064
5/16 ABOVE
NOZZLE
ELECTRODE
DIMENSION “N”
SEE FIG 18
DIMENSION “H”
SEE BELOW
5/32
GAP
L1 OR V1 HEAD
LOCATION OF HEAD
AT "0" POSITION
ON ADJUSTING PLATE
WITNESS
MARK
HOLD DOWN
SCREW
PRIMARY
ADJUSTING
PLATE
SECONDARY
ADJUSTING
PLATE
KNURLED
NUT
ACORN NUT/
LOCK WASHER
"MD" AIR
TUBE COMBINATION
"V1" ADJUSTABLE
HEAD
1
3
⁄4″ ±
1
⁄32″
DIMENSION "Z"
A95604
Fig. 16—Beckett Burner Setting Variable (V1) Head
7/16 ABOVE
DIMENSION “N”
SEE FIG 15
NOZZLE
ELECTRODE
5/32
GAP
A02245
Fig. 17—Beckett Burner Setting Fixed (F) Head — 140, 210
—16—