Specification

Due to ongoing product improvements, specifications and dimensions are
subject to change and correction without notice or incurring obligations. Determining the
application and suitability for use of any product is the responsibility of the installer.
Additionally, the installer is responsible for verifying dimensional data on the actual product
prior to beginning any installation preparations.
Third party incentive and rebate programs have precise requirements as to product performance
and certification. All products meet applicable regulations in effect on date of manufacture;
however, certifications are not necessarily granted for the life of a product.
Therefore, it is the responsibility of the applicant to determine whether a specific
model qualifies for these incentive/rebate programs.
“This product complies with all California product
labeling laws including, but not limited to, the Safe
Drinking W
ater and Toxic Enforcement Act of 1986,
more commonly known as Proposition 65.”
SPECIFICATIONS
Cogurations
• Upow / Highboy
• Basement / Lowboy
• Horizontal / Counterow
Heat Exchanger
Heavy-duty 14 gauge steel with a long lasting, high temperature
ceramic ber combustion chamber
• Easy access large diameter stainless steel cleanout ports
Cabinet
Foil-faced high density fiberglass insulation reduces heat loss and sound
Pre-painted steel for maximum durability
Blower
Direct drive with slide-out design (upflow only)and quick plug-in wiring
4 speed PSC direct drive motors with dynamically balanced blower
wheel and resilient motor mounts for smooth and quiet operation
Burner
High quality Beckett™ Flame Retention AFG Burner for efficient
combustion
High efficiency PSC Burner motor to provide consistent operation
through all operating conditions
Solid state ignition provides a consistent 10,000 volts for smooth
ignition
Color coded wiring for easy service
40VA Transformer and cooling fan relay are factory wired for easy add-
on cooling installation
Venting
Includes field installed barometric damper
Optional sidewall vent kit available
Genisys
TM
Advanced Burner Control
(Model: 7505B1500) features the following:
Programmable valve-on delay and motor-off delay
Three indicator lights for system monitoring and diagnostics
Two communication ports for adding alarm contacts, programming
display, and/or future wireless communications
Welded relay protection with redundant motor relays
Limited reset and limited recycle
Sleek, modern design
Technician Pump Prime mode
PSC OIL FURNACES
83% - 84%
OUFB/OLFB/OLRB
ODFB/ODRB
ACCESSORIES
DESCRIPTION USED WITH CATALOG NUMBER KIT NUMBER
Clean Out Kit All models 1.841025 ABRSH380-3
Field Controls Side Wall Vent Kit * All Models See Note Below See Note Below
Combustion Air Kit All Models 1.841038 ABOOT571
Clean Out Cap Kit All Models 1.841037 ACAP570
Combustible Floor Base
ODFB95/ODRB95 1.841022 BASE537-1
ODFB125 1.841023 0
Note: * This can be ordered from Field Controls, part number SWG-5-CK61.
OUFB/OLFB/OLRB
ODFB/ODRB
HORIZONTAL/COUNTERFLOW: DIMENSIONS (IN.)
Model A B C D E F G H J K L M N P Q R S
ODFB95-D3-4A 59 20-1/2 20-1/2 18-1/4 18-1/4 1-1/4 1-1/4 18 18 1-1/4 1-1/4 32-1/2 10-1/4 3 41-1/2 3 14-1/2
ODFB-125-D5-3A 59 23-1/2 23-1/2 21-1/4 21-1/4 1-1/4 1-1/4 21 21 1-1/4 1-1/4 32-1/2 11-3/8 3 41-1/2 3 17-1/2
ODRB95-D3-4A 59 20-1/2 20-1/2 18-1/4 18-1/4 1-1/4 1-1/4 18 18 1-1/4 1-1/4 32-1/2 10-1/4 3 41-1/2 3 14-1/2
HORIZONTAL: CLEARANCES TO COMBUSTIBLES (IN.)
Model Front Above Rear Flue Bottom
ODFB95-D3-4A
24 1 1 7 1
ODFB-125-D5-3A
ODRB95-D3-4A 24 1 24 7 1
COUNTERFLOW: CLEARANCES TO COMBUSTIBLES (IN.)
Model Front Sides Rear Floor Above Flue
ODFB95-D3-4A
16 1 1
Non-Combustible
0 7
ODFB-125-D5-3A
ODRB95-D3-4A 16 1 1 0 7
SP-2M 6/20 CA-PAT-PSC_SPEC
83% OIL FURNACE AL83
FORM NO. AL83-100 (01/2020) Printed in the U.S.A.© 2020 Allied Air Enterprises LLC, a Lennox International Inc. Company
1-800-448-5872
All specifications and illustrations subject to
change without notice and without incurring
obligations.
Page 8
DIMENSIONS (IN.)
Model A B C D E F G H J K L M N P Q R S
L83HF1D84/95E12-1 59 20-1/2 20-1/2 18-1/4 18-1/4 1-1/4 1-1/4 18 18 1-1/4 1-1/4 32-1/2 10-1/4 3 41-1/2 3 14-1/2
L83HF1D112/125E20-1 59 23-1/2 23-1/2 21-1/4 21-1/4 1-1/4 1-1/4 21 21 1-1/4 1-1/4 32-1/2 11-3/8 3 41-1/2 3 17-1/2
L83HR1D57/72E12-1
59 20-1/2 20-1/2 18-1/4 18-1/4 1-1/4 1-1/4 18 18 1-1/4 1-1/4 32-1/2 10-1/4 3 41-1/2 3 14-1/2
L83HR1D84/95E12-1
L83HR1D112/125E20-1 59 23-1/2 23-1/2 21-1/4 21-1/4 1-1/4 1-1/4 21 21 1-1/4 1-1/4 32-1/2 11-3/8 3 41-1/2 3 17-1/2
HORIZONTAL / COUNTERFLOW
HORIZONTAL POSITION
Model Front Above Rear Flue Bottom
L83HF1D84/95E12-1
24 1 1 7 1
L83HF1D112/125E20-1
L83HR1D57/72E12-1
24 1 24 7 1L83HR1D84/95E12-1
L83HR1D112/125E20-1
COUNTERFLOW POSITION
Model Front Above Rear Flue Sides Floor
L83HF1D84/95E12-1
16 0 1 7 1
Non-Combustible
L83HF1D112/125E20-1
L83HR1D57/72E12-1
16 0 1 7 1L83HR1D84/95E12-1
L83HR1D112/125E20-1
CLEARANCES TO COMBUSTIBLES (IN.)
G
D
E
F
C
Supply
Opening
B
A
M
N
Front View
Flue Pipe
(Front flue
models only)
K
L
H
J
Return
Opening
P
S
Q
R
Top View
Knockouts for
suspending (4)
Flue Pipe
(Rear flue models only)
Back View
N
M
Return
Opening
L
H
J
K
Front
View
Flue Pipe
(Front flue
models only)
N
M
A
B
Flue Pipe
(Rear flue
models only)
Back View
N
M
Supply
Opening
F
G
D
E
C
Warranty—Lifetime on heat exchanger, 5 years on parts
(Some limitations apply; see printed warranty for details.)
www.marsdelivers.com

Summary of content (6 pages)