Table of Contents
Advertisement
Special Requirements
○
THE INSTALLATION OF A BURNER SHALL BE IN
ACCORDANCE WITH THE REGULATIONS OF
AUTHORITIES HAVING JURISDICTION.
○
For recommended installation practices in the U.S.
refer to the latest edition of NFPA 31. (CSA-B139
and CSA-B140 in Canada.
○
Concealed damage — If you discover damage to
the burner or controls during unpacking, notify the
carrier at once and fi le the appropriate claim.
○
When contacting Beckett for service information
— Please record the burner serial number (and have
available when calling or writing). You will fi nd the
serial number on the silver label located on the left
rear of the burner. Refer to Figure 1.
Impaired Burner
Performance and Fire
Hazard.
Do NOT operate the burner beyond specifi cations
outlined in the following Table.
For applications beyond these limits, consult Beckett
Technical Service at 1-800-645-2876.
NOTE: Some packaged appliances with burners
may be agency listed as a unit to operate beyond
these limits. Consult the appliance manufacturer's
specifi cations and agency approvals for verifi cation.
NX Burner Manual
General Specifi cations
Table 1 – Burner Specifi cations
Capacity
Firing rate: - 0.40 – 1.75 GPH
(Note 1)
Input: Min. - 56,000 Btu
Max - 245,000 Btu
Certifi cation/
UL certifi ed to comply with ANSI/UL296 & tested to
Approvals
CSA B140.0
Fuels
U. S.: No. 1 or No. 2 heating oil only (ASTM D396)
Canada: No. 1 stove oil or No. 2 furnace oil only
DO NOT USE GASOLINE, CRANKCASE
OIL, OR ANY OIL CONTAINING GASOLINE.
Electrical
Power supply: 120 volts AC, 60 Hz, single phase
Operating load: 5.8 Amps max
Motor: 1/7 hp, 3450 rpm, NEMA 48M
frame PSC rotation CCW when
facing shaft end
Ignition: Continuous duty solid-state igniter
Fuel pump
Outlet pressure - Note 2
Air tube
ATC code - See Table 2
Dimensions
Height (maximum): 12-1/2 inches
(with cover)
Width (maximum): 15 inches
Depth: 9-1/4 inches
Air tube diameter: 3-1/4 inches
Ambient Oper-
+32° F. (0° C.) Minimum
ating Tempera-
+115° F. (+46° C.) Maximum
ture
(See above Warning)
Note 1: Approval agency listed rating for these burners is 0.40 to 1.75
gph. However, the fi ring rate range is limited by the specifi c air tube
combination being used. Refer to Table 2.
Note 2. See appliance manufacturer's burner specifi cations for recom-
mended pump discharge pressure.
Table 2 – Air Tube Combinations (ATC)
Firing rate
Head
(gph)
(min-max)
0.40-1.00
9-Slot
NX50LG
0.40-1.00
6-Slot
NX50LH
0.40-1.35
9-Slot
NX50LB
0.40-1.35
6-Slot
NX50LC
1.10-1.75
9-Slot
NX50LD
1.10-1.75
6-Slot
NX50LF
Section: General Information
ATC codes for usable air tube
lengths:
5"
7"
9"
NX70LG
NX90LG
NX50LH
NX90LH
NX70LB
NX90LB
NX70LC
NX90LC
NX70LD
NX90LD
NX70LF
NX90LF
5
Advertisement
Table of Contents
