Table of Contents
Advertisement
Quick Links
E202005 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
The O23V series unit must be serviced annually.
All service must be performed by a qualified profes-
sional service technician, or equivalent.
O23V SERIES UNITS ARE NOT FOR USE IN
ZONING APPLICATIONS!
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 Signaturet Collection O23V oil fur-
naces. In Canada, refer to CSA B139 for recommended
installation procedures. Consult authorities who have juris-
diction before installation.
Shipping & Packing List
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.
03/10
*2P0310*
Downloaded from
ManualsNet.com
IMPORTANT
search engine
INSTALLATION
INSTRUCTIONS
O23V Series Units
OIL UNITS
505,082M
38152A070
03/2010
Supersedes 10/2005
Table of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Do not store or use gasoline or other flammable va-
pors and liquids in the vicinity of this or any other
appliance.
This product contains fiberglass wool.
Disturbing the insulation during installation, main-
tenance, or repair will expose you to fiberglass wool
dust. Breathing this may cause lung cancer. (Fiber-
glass wool is known to the State of California to
cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact
your supervisor.
Lennox Industries Inc.
P.O. Box 799900
Dallas, TX 75379−9900
Page 1
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . . . . .
WARNING
WARNING
505,082M
*P505082M*
Litho U.S.A.
1
1
2
3
3
4
4
5
5
10
10
10
12
12
12
13
17
18
18
19
24
Advertisement
Table of Contents
Related Manuals for Lennox O23V Series
Summary of Contents for Lennox O23V Series
-
Page 1: Table Of Contents
....... The O23V series unit must be serviced annually. Oil Furnace Start−Up & Check List . -
Page 2: O23V Unit Dimensions
O23V Unit Dimensions − Inches (mm) 3/4 (19) 3/4 (19) TOP FLUE OUTLET SUPPLY OPENING FLUE CONNECTION (On Heat TOP VIEW Exchanger) SIDE FLUE OUTLET CENTERING HOLE (Field Fabricate Either Side) ELECTRICAL INLET (Right Side Only) OIL PIPING INLET (Left Side Only) (1372) OPT. -
Page 3: O23V Unit Parts Arrangement
O23V Unit Parts Arrangement HEAT EXCHANGER FLUE OPENING CLEAN-OUT PORT LIMIT SWITCH CLEAN−OUT PORT CONTROL BOX WITH FAN CONTROL BOARD OBSERVATION PORT COMBUSTION AIR INTAKE BECKETTR AFII BURNER VARIABLE SPEED BLOWER MOTOR INDOOR BLOWER CAPACITOR Figure 2 O23V Oil Burner Parts Arrangement CONNECTOR TUBE ELECTRONIC PRIMARY... -
Page 4: Requirements
With the HEAT selector pin in the position shown in the Installation of Lennox oil−fired furnaces must conform wiring diagram (on page 16), the unit must operate at with the National Fire Protection Association Standard... -
Page 5: Unit Adjustments
Unit Adjustments O23V Series Burner Removal Loosen three nuts which at- Rotate burner counterclockwise on tach burner to vest panel. slots then pull toward you. Neither the nozzle setting nor the air adjustments are fac- tory set. The furnace is fire tested and the limit control is checked to make sure it functions properly;... - Page 6 WARNING Wall Thimble The barometric damper shall be in the same atmo- THIMBLE spheric pressure zone as the combustion air inlet to the furnace. Deviation from this practice will cause improper burner operation and may result in a fire hazard. WARNING COMBUSTIBLE VENT PIPE...
- Page 7 15. All vent pipe run through unconditioned areas or out- In the absence of local codes concerning air for combus- side shall be constructed of factory built chimney sec- tion and ventilation, the following section outlines guide- tions. See figure 8. lines and recommends procedures for operating oil fur- naces in a manner that ensures efficient and safe 16.
- Page 8 nate outside the space containing the furnace. This is es- Btu (1172 W) per hour of total input rating of all equipment pecially important when the furnace is mounted on a plat- in the enclosure (See figures 10 and 12). When communi- form in a confined space (e.g., closet or small equipment cating with the outdoors through horizontal ducts, each room).
- Page 9 Equipment in Confined Space CAUTION All Air From Outside DO NOT USE a barometric draft relief in exhaust CHIMNEY OR OIL VENT vent pipe if outdoor combustion air is connected di- rectly to the burner. Removal of Unit from Common Venting System In the event that an existing furnace is removed from a venting system commonly run with separate appliances, OUTLET AIR...
-
Page 10: Flue Connections
Locate the barometric draft control within 18 inches of the Radiation Shield Installation furnace flue outlet. See figure 13 for barometric draft con- Ï Ï Ï Ï Ï Ï Ï Ï COMBUSTIBLE trol location. MATERIAL Ï Ï Ï Ï Ï Ï Ï Ï 1"... - Page 11 Oil Piping − One-Pipe System Oil Piping − Two-Pipe System AIR VENT AIR VENT FUEL PUMP FILL PIPE FILL PIPE Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó FUEL PUMP FILTER RETURN Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó...
-
Page 12: Oil Supply Line & Filter Connections
Table 5 Oil Supply Line & Filter Connections Installation Clearances inches (mm) One−Pipe Systems Oil Filters Cat. No. CAUTION 10 micron filter (no mounting bracket) 81P89 10 micron replacement cartridge for filter, 45 gph 53P93 Do not install the bypass plug into the pump on one− pipe systems. -
Page 13: Blower Control
NOTE − An equipment ground screw is provided. Re- LED will flash 10 times. fer to unit wiring diagram and figure 18 for O23V series units. Ground unit using a suitable ground wire. At times, the light may appear to flicker or glow. This takes place when the control is communicating with the motor 5. - Page 14 Y1/Y2 y2/Y1 ADJUST 7−1/2 100% minutes The ADJUST pins allow the motor to run at normal speed, approximately 15% higher than normal speed, or 15% low- er than normal speed. Table 6 gives three rows NORM, (+), and (–) with their respective CFM volumes. Notice that the normal NORM"...
- Page 15 Continuous Fan HUM terminal which provides for connection of a humidis- tat. The JW1 jumper on the blower control board must be When the thermostat is set for Continuous Fan" operation cut to activate the HUM terminal. The humidistat must be and there is no demand for heating or cooling, the blower wired to open on humidity rise.
- Page 16 O23V Wiring Diagram Figure 18 Page 16 Downloaded from ManualsNet.com search engine...
-
Page 17: Unit Start-Up & Adjustments
The following instructions are essential to the proper op- an air adjustment dial on the right side of the burner. eration of O23V series oil furnaces. To prevent sooting, See burner parts arrangement illustration. these instructions must be followed in sequence: 3. -
Page 18: Service
NOTE − A heat exchanger clean-out kit ABRSH380 trol. (35K09) is available from Lennox. 7. Stack Temperature Take a stack temperature Servicing the Oil Burner reading in the vent pipe. Subtract the room air temper- The nozzle and oil filter must be checked before each heat- ature from the stack temperature. -
Page 19: Troubleshooting
Burner motor is de−energized. 6. Action: Limit Switch Closes 4. Action: Established flame fails Response: If there is a heat demand, A15 control Response: board energizes oil primary control, initiating burner Burner motor is de−energized and oil primary con- light off. trol goes into recycle mode. - Page 20 Troubleshooting: Burner fails to start Source Procedure Causes Correction Primary Control Place trouble light between Primary or auxiliary control Check adjustment. Set the maximum setting. the black and white leads. switch is open Jumper terminals; if burner starts, switch is faulty, No light indicates that no replace control.
- Page 21 Troubleshooting: Burner starts, but no flame is established Source Procedure Causes Correction Ignition Remove gun assembly and inspect Fouled or shorted electrodes Clean electrode leads. Electrodes electrodes and leads. Dirty electrodes and leads Eroded electrode tips Clean electrode tips and reset the gap to 5/32 inches and correctly Improper electrode gap spacing position tips.
- Page 22 Troubleshooting: Burner starts and fires, but short cycles (too little heat) Source Procedure Causes Correction Limit Control Connect voltmeter between Dirty furnace air filters Clean or replace filter. line voltage connections to Blower running too slow Increase blower speed to maintain proper primary control (black &...
- Page 23 Troubleshooting: Burner runs continuously (too much or too little heat) Too much heat Source Procedure Causes Correction Thermostat Disconnect thermostat Shorted or welded thermostat contacts Repair or replace the thermostat. wires at the primary Stuck thermostat bimetal Clear obstruction or replace thermostat. control.
-
Page 24: Oil Furnace Start−Up Checklist
Oil Furnace Start−Up Checklist (Complete this page and keep for future reference) Customer Name Street Address City State/Zip Code Furnace Model # Serial # Input Rate Nozzle Used New Construction Replacement Date of Installation Installation Data Start−Up Procedure Furnace Location: Close disconnect switch Set thermostat to call for heat Basement −...