51
TABLE 14a: BECKETT DIRECT VENT PRELIMINARY BURNER SETTINGS
Boiler
Model
Head
Type
Insertion
Depth
[inch]
Firing
Rate
[GPH]
Combustion
Liner
Nozzle
Mfr.
Nozzle
Type
Pump
Pressure
[PSI]
Air
Setting
Pressure
Switch
Setpoint
4075
6 Slot
2.5
0.75
Oval
Delavan
0.60x60B
150
1.5
0.65" WC
5100
6 Slot
2.5
1.00
None
Delavan
0.75x45B
175
4.0
0.85" WC
6130
6 Slot
2.5
1.30
V6
Delavan
1.00x45B
175
2.0
0.65" WC
Timings
Pre-purge
15 seconds
Post-purge
30 seconds
Table 14 - Beckett NX (Direct Vent) Preliminary Burner Settings
TABLE14b : BECKETT /ECR PART NUMBERS
Boiler
Model
Beckett Oil
Burner
ECR Oil Burner
Part Number
4075
NX70LC
550004238
5100
NX70LC
240007532
6130
NX70LD
240007533
Burner settings provided are for initial startup only. Final adjustments must be made using combustion test instruments.
17 - OIL BURNER, NOZZLE, & AIR SETTINGS
PN 240013415 REV A [08/15/2021]