Beckett NX Series User Manual

RWB 6104 WMNX Page 5
Figure 1. Burner label location
Boiler
Model
Burner Spec Firing
Rate
(GPH)
Air Tube
Combina-
tion
Insertion Primary
Nozzle
Alternate
Nozzle
Fuel Pump
Pressure
(psig)
Head/Air
Adjustment
Plate Setting
UO-3 CV WL5703
(See Note1)
0.80 NX70LC 1-3/4” 0.65 X 60
o
A
Delavan
0.65 X 70
o
B
Hago
150 1.75
UO-3 CV WL5703 1.00 NX70LC 1-3/4” 0.75 X 60
o
B
Hago
0.75 X 60
o
B
Delavan
175 2.50
UO-4 CV WL5704 1.20 NX90LB 3-1/2” 1.00 X 70
o
B
Hago
1.00 X 70
o
B
Delavan
140 4.00
UO-5 CV WL5705 1.40 NX90LD 3-1/2” 1.10 X 70
o
B
Hago
1.10 X 70
o
B
Delavan
160 1.50
UO-3 DV WL5803
(See Notes1 & 2)
0.80 NX70LC 1-3/4” 0.65 X 60
o
A
Delavan
0.65 X 70
o
B
Hago
150 1.75
UO-3 DV WL5803
(See Note 2)
1.00 NX70LC 1-3/4” 0.75 X 60
o
B
Hago
0.75 X 60
o
B
Delavan
175 2.50
UO-4 DV WL5804
(See Note 2)
1.20 NX90LB 3-1/2” 0.85 X 60
o
W
Delavan
0.85 X 60
o
W
Hago
190 4.00
UO-5 DV WL5805
(See Note 2)
1.40 NX90LD 3-1/2” 1.10 X 70
o
B
Hago
1.10 X 70
o
B
Delavan
160 1.50
1) Shipped as 1.0 GPH Burner Confi guration. The 0.80 GPH input uses same burner as 1.0 GPH input. Replace nozzle, adjust
pump pressure and Head/Air setting as shown above and install 14”x16” blanket on combustion chamber fl oor. (See Mainte-
nance Section for Nozzle Replacement details.)
2) Direct Vent Boilers require that a combustion chamber blanket be installed (blanket supplied with burner).
NX Burner Specifications for Weil-
McLain Ultra Oil Boilers
Weil-McLain Burner Specifi cations
Table 1. Burner Confi gurations - Verify that burner specifi cation number (on burner carton) and confi guration
agrees with information below.
The remainder of this manual contains Infor-
mation to be used ONLY by a qualifi ed Service
Technician.
NOTICE
The table below provides burner specifi cations and
starting air settings for NX burners applied to Weil-
McLain Model UO boilers. Follow all instructions in
this burner manual, the boiler manual and the fuel
pump literature to install, setup and service the burn-
er.
Fozen Plumbing and Water Damage Hazard.
Unoccupied residences in severly cold weather
could experience frozen plumbing in just a few
hours if the heating system fails for any reason.
Consult your HVAC contractor for effective pre-
ventive protection, such as electronic monitor-
ing systems with 24/7 dial-up capability.
NOTICE

Beckett NX Series Specifications

General

Brand	Beckett
Model	NX Series
Category	Burner
Language	English