Page 1
E
2018 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
SLO185UFV SERIES UNITS ARE NOT FOR
USE IN ZONING APPLICATIONS!
WARNING
Improper installation, adjustment, alteration, ser
vice, or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information, consult a licensed profes
sional installer, or equivalent, or service agency.
WARNING
Do not store or use gasoline or other flammable va
pors and liquids in the vicinity of this or any other
appliance.
CAUTION
When venting this appliance, keep vent terminal
free of snow, ice and debris.
CAUTION
As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal
edges. Be careful when you handle this equipment.
INSTALLATION
INSTRUCTIONS
DAVE LENNOX SIGNATURE
®
COLLECTION OIL FURNACE
UPFLOW AIR DISCHARGE
SLO185UFV
Series Units
OIL UNITS
507263-01
08/2018
Supersedes 06/2017
Table of Contents
General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping & Packing List
. . . . . . . . . . . . . . . . . . . . . . . .
SLO185UFV Unit Dimensions
. . . . . . . . . . . . . . . . . . .
SLO185UFV Unit Parts Arrangement
. . . . . . . . . . . .
SLO185UFV Oil
Burner Parts Arrangement
3
. . . . . . . . .
Requirements
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion & Ventilation Air
5
. . . . . . . . . . . . . . . . . . . .
Locate & Level the Unit
. . . . . . . . . . . . . . . . . . . . . . . .
Adjustments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Venting
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flue Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply & Return Air Plenums
. . . . . . . . . . . . . . . . . . .
Oil Supply Line Sizing
. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Supply Line & Filter Connections
. . . . . . . . . . . . .
Leak Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Control
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Start Up & Adjustments
19
. . . . . . . . . . . . . . . . . . . .
Service
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Burner Control
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting
22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
These instructions are intended as a general guide and do
not supersede local codes in any way. Only licensed pro
fessional technicians, or equivalent, can install and service
the Dave Lennox Signature
t
Collection SLO185UFV oil
furnaces. In Canada, refer to CSA B139 for recommended
installation procedures. Consult authorities who have juris
diction before installation.
CAUTION
Never burn garbage or paper in the heating system.
Never leave papers near or around the unit.
Shipping & Packing List
1 - Assembled oil furnace
1 - Barometric draft control
1 - High fire oil nozzle (used to convert to high fire 105
and 141 inputs)
Check the components for shipping damage. If you find
any damage, immediately contact the last carrier.
Litho U.S.A.
