,t_2005 Lennox industries
Inc,
Dallas, Texas, USA
INSTALLATION
INSTRUCTIONS
O23V Series Units
OIL
UNITS
_
Technical
505,082M
LL.L[ Publications
10/05
Litho U.S.A.
RETAIN
THESE
INSTRUCTIONS
FOR FUTURE
REFERENCE
A IMPORTANT
O23V SERIES UNITS ARE NOT FOR USE IN
ZONING APPLICATIONS!
These instructions are intended as a general guide and do
not supersede local codes in any way. Only qualified tech-
nicians can install and service the Dave Lennox Signa-
ture'"
Collection O23V oil furnaces. In Canada, refer to
CSA B139 for recommended installation procedures. Con-
sult authorities who have jurisdiction before installation.
General ......................................
1
Shipping & Packing List ........................
1
O23V Unit Dimensions
.........................
2
O23V Unit Parts Arrangement ...................
3
O23V Oil Burner Parts Arrangement ................
3
Requirements
.................................
4
Locate & Level the Unit ........................
4
Unit Adjustments
..............................
5
Venting
......................................
5
Flue Connections ..............................
10
Supply & Return Air Plenums
...................
10
Oil Supply Lines Sizing .........................
10
Oil Supply Line & Filter Connections
.............
12
Leak Check ...................................
12
Electrical
.....................................
12
Blower Control ................................
13
Unit Start-Up & Adjustments
....................
17
Service
......................................
18
Heating Events Actions & Responses
............
18
Troubleshooting
...............................
19
Oil Furnace Start-Up & Check List ...............
24
a WARNING
a WARNING
1 - Assembled oil furnace
1 - Barometric draft control
1 - Side exhaust pipe collar
1 - Direct intake collar (AFII burner units only)
Check the components for shipping damage. If you find
any damage, immediately contact the last carrier.
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