Burnham 4S Webster Low NOx Data Sheet

SERIES LN4S

Webster 30 PPM

Motor

Burner Model Sequence

Boiler Size Gas and Gas/#2 Oil Blower Oil Pump A/C

LN4S-100
LN4S-125
LN4S-150

JBX2-*-50
JBX3-*-50
JBX3-*-75 7.5 NA N/A Full Mod RM7840L/UV 1 psi 1 psi 3" 6"

Horsepower

5 NA N/A Full Mod RM7840L/UV 1 psi 1 psi 2.5 6"
5 NA N/A Full Mod RM7840L/UV 1 psi 1 psi 2.5 6"

[1]

Low Nox Burner Information

[2]

Firing

Gas and

Gas/#2 Oil

Standard Flame

Safeguard

Minimum Gas

Pressure

Gas Train

Maximum

Gas Pressure

Size

FGR
Line
Size

LN4S-175 JBX3-*-75 7.5 NA N/A Full Mod RM7840L/UV 1 psi 1 psi 3" 6"
LN4S-200 JBX3-*-100 10 NA N/A Full Mod RM7840L/UV 2 psi 5 psi 3" 6"
LN4S-250
LN4S-300
LN4S-350

HDSX5-*-75A 7.5 NA N/A Full Mod RM7840L/UV 2 psi 5 psi 3" 8"
HDSX7-*-150A 15 1/3 2 Full Mod RM7840L/UV 3 psi 7 psi 3" 8"
HDSX7-*-200A 20 1/2 3 Full Mod RM7840L/UV 3 psi 7 psi 3" 8"

LN4S-400 HDSX7-*-200B 20 1/2 3 Full Mod RM7840L/UV 3 psi 7 psi 3" 8"
LN4S-500 HDSX7-*-300B 30 1/2 5 Full Mod RM7840L/UV 3 psi 7 psi 3" 10"
LN4S-600

HDSX9-*-400B 40 1/2 5 Full Mod RM7840L/UV 4 psi 7 psi 3" 10"

LN4S-700 HDSX9-*-500B 50 1/2 5 Full Mod RM7840L/UV 5 psi 7 psi 3" 10"
LN4S-800 HDSX9-*-600B 60 1/2 7.5 Full Mod RM7840L/UV 5 psi 7 psi 3" 12"

Gas and Gas/#2Oil Firing Sequence

ALL MODELS: FULL MODULATION WITH PROVEN LOW FIRE START, SYNCHRONIZED FUEL/AIR CONTROL WITH MODULATING MOTOR.

NOTES:

[1]

EXPECTED EMISSIONS ARE 30 PPMVD OR LESS NOx (CORRECTED TO 3.0% O2) AND 400 PPMVD OR LESS CO (CORRECTED TO 3.0% O2) WHEN FIRING NATURAL GAS

[2]

ALL BLOWER AND AIR COMPRESSOR MOTORS AVAILABLE 208-230-460/60/3, INDICATE JOBSITE ON ORDER. OIL PUMP MOTORS ARE 230/60/1; CONSULT FACTORY

FOR OTHER VOLTAGES

15-Mar

SERIES LN4S

Burner Equipment

Equipment Fuel Description

Control Cabinet Gas, Gas/#2 Oil NEMA 1A with hinged door
Control Voltage Transformer Gas, Gas/#2 Oil Included
Motor Starter Gas, Gas/#2 Oil Magnetic starter with overload protection
Fusing Gas, Gas/#2 Oil Control circuit only
Ignition Gas, Gas/#2 Oil Gas/Electric pilot
Signal Lights Gas, Gas/#2 Oil (4) - power on, fuel valve open, call for heat, flame failure
Air Flow Safety Switch Gas, Gas/#2 Oil All Models
Gas Train Gas, Gas/#2 Oil UL gas train for minimum inlet pressure indicated on Burner

Information table. Assembled, wired and mounted on unit
consisting of the following:
Manual shut off valve
Gas pressure Regulator
Manual leak test valve
100 & 125: Single Motorized Gas Valve with Proof of closure
150 & Larger: 2 Gas Valves
Main Gas Valve: Motorized type
Auxillary gas valve: Solenoid type
High and Low gas pressure switches

Oil Pump Gas/#2 Oil Remote oil pump set with motor and accessories mounted on

boiler skid

Oil Firing Type Gas/#2 Oil 100 - 200: Pressure Atomizing

250 and larger: Air Atomizing

Pilot Gas Controls Gas, Gas/#2 Oil All models have gas/electric pilot, manual pilot shut-off valve, pilot

gas pressure regulator and solenoid gas valve
Fuel Changeover Gas/#2 Oil Manual switch
Flue Gas Recirculation Gas, Gas/#2 Oil Induced flue gas recirculation, no external fan is required