Lennox SLO183UFV Series Installation Instructions Manual
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Lennox SLO183UFV Series Installation Instructions Manual

Lennox SLO183UFV Series Installation Instructions Manual

Oil?fired furnaces unit
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E2012 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
SLO183UFV 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.
04/12
*2P0412*
INSTALLATION
INSTRUCTIONS
SLO183UFV Series Units
OIL UNITS
506904−01
04/2012

Table of Contents

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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 SLO183UFV oil
furnaces. In Canada, refer to CSA B139 for recommended
installation procedures. Consult authorities who have juris-
diction before installation.
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 − Oil nozzle (used with SLO183UF86, −114 and −150
only)
Check the components for shipping damage. If you find
any damage, immediately contact the last carrier.
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CAUTION
506904−01
*P506904-01*
Litho U.S.A.
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Summary of Contents for Lennox SLO183UFV Series

  • Page 1: Table Of Contents

    ........SLO183UFV SERIES UNITS ARE NOT FOR Blower Control .

  • Page 2: Slo183Ufv Unit Dimensions

    SLO183UFV 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: Slo183Ufv Unit Parts Arrangement

    SLO183UFV Unit Parts Arrangement HEAT EXCHANGER FLUE COLLAR CLEAN− CLEAN− OUT PORT OUT PORT LIMIT SWITCH OBSERVATION PORT VARIABLE SPEED BLOWER MOTOR BECKETT AFG BURNER BLOWER CONTROL CAPACITOR INDOOR BLOWER Figure 2 SLO183UFV AFG Burner Parts Arrangement BURNER CONTROL (with Reset Button) IGNITER MAIN HOUSING...

  • Page 4: Requirements

    Dallas, TX 75379−9900 rear 0 (0) front 4 (120) Installation of Lennox oil−fired furnaces must conform with flue pipe 6 (152) the National Fire Protection Association Standard for the Installation of Oil Burning Equipment, NFPA No. 31, the NOTE − When service clearances are greater than fire National Electrical Code, ANSI/NFPA No.70 (in the...

  • Page 5: Combustion And Ventilation Air

    or clothes dryers are used at the same time as the furnace, Notice to Home Owner much more air is required to ensure proper combustion This furnace is equipped with safety devices that protect and to prevent a down-draft situation. Insufficient amounts you and your property.

  • Page 6: Locate & Level The Unit

    When ducts are used, they shall be of the same cross−sec- Equipment In Confined Space tional area as the free area of the openings to which they All Air From Inside connect. The minimum dimension of rectangular air ducts Chimney or Oil Ven shall be no less than 3"...

  • Page 7: Adjustments

    Level the unit from side to side and from front to rear. If the SLO183UFV Series Burner Removal furnace is not level, place fireproof wedges or shims be- First, loosen three nuts which Next, rotate burner clockwise tween the low side of the furnace and the floor. Make sure attach burner to vest panel.

  • Page 8: Venting

    Indoor Coil Placement outlet diameter of the vent outlet of the furnace. In cooling / heat pump applications, Lennox recommends 4 − Pipe should be at least 24 gauge galvanized. that the indoor coil be installed at least 4 inches above the top 5 −...

  • Page 9: Flue Connections

    NOTE − If vent pipe needs to exit from side of cabinet, Factory−Built Chimney use the pilot hole (located on either side of the unit) to cut a 6" (152 mm) round hole. Attach finishing plate (provided) with four sheet metal screws to cover rough Barometric Draft edges.

  • Page 10: Supply & Return Air Plenums

    have flue pipe as short and direct as possible. Where two Supply & Return Air Plenums or more appliances vent into a common flue, the area of Secure return air plenum to unit using sheet metal screws. the common flue should be at least equal to the area of the largest flue or vent connector, plus 50% of the area of any NOTE −...

  • Page 11: Oil Supply Line & Filter Connections

    when lift exceeds 10 feet (3 m) and/or a vacuum of 10" (254 that purges the fuel pump of air by returning it to the tank. mm) Hg to 15" (381 mm) Hg. Both conditions require the To determine the run and lift for piping, refer to table 5 . use of a two−pipe system, which consists of a return line Table 4 Fuel Pump Usage...

  • Page 12: Leak Check

    pipe system the return pipe must terminate in the tank 3" Electrical (76 mm) to 4" (102 mm) above the supply inlet. Ensure the return pipe terminates at the correct measurement or air All wiring must conform to the National Electric Code may escape into the system.
  • Page 13 Typical SLO183UFV Wiring Diagram OIL DELAY ST9103A Figure 7 Page 13...

  • Page 14: Field Wiring Diagrams

    Field Wiring Diagrams 1 Heat / 1 Cool 1 Heat / 2 Cool ® ® ComfortSense 7000 L7724U ComfortSense 7000 L7724U 1 Heat / 1 Cool 1 Heat / 2 Cool ® ® ComfortSense 7000 L7724U ComfortSense 7000 L7724U with Thermostat Dehumidification Mode with Thermostat Dehumidification Mode Figure 8 Page 14...
  • Page 15 Field Wiring Diagrams (Continued) Dual Fuel Single−Stage Heat Pump Dual Fuel Two−Stage Heat Pump ® ® ComfortSense 7000 L7724U ComfortSense 7000 L7724U with Dual Fuel Control Mode with Dual Fuel Control Mode Dual Fuel Two−Stage Heat Pump ® ComfortSense 7000 L7724U with Dual Fuel Control Mode and Thermostat Dehumidification Mode Figure 9...

  • Page 16: Blower Control

    When the demand for cool is met, the blower ramps down Blower Control (A54) to 82% CFM for 60 seconds, then turns off. WARNING COOL (two-stage systems) Electric shock hazard. Can cause This unit is factory−wired for single−stage cooling. For injury or death.
  • Page 17 CFM LED Heat Pump Applications The CFM LED located on the blower control flashes one time per 100 cfm to indicate selected blower speed. For example, if the unit is operating at 1000 CFM, the CFM To blower LED will flash 10 times. motor At times, the light may appear to flicker or glow.
  • Page 18 Table 7 Blower Performance {0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range} ADJUST" HEAT" Jumper Speed Position [kBtuh heat input] COOL" Jumper Speed Position Jumper Setting Model SLO183UFV68/86 Units Do not use Do not use [−86] [−68] Same as NORM...

  • Page 19: Unit Start Up & Adjustments

    Tighten the plug when all the air has been purged. The following instructions are essential to the proper op- eration of SLO183UFV series oil furnaces. To prevent NOTE − A two−line fuel system will normally bleed itself sooting, these instructions must be followed in sequence: by forcing air back to the tank through the return line.
  • Page 20 Table 9 Burner Specifications Beckett Input Nozzle Size, Static Burner Beckett Pump Insertion Air Tube Rating Spray, Angle, & Plate Unit Head Number Spec. No. Pressure Length Part No. BTU/HR Pattern Diameter AF46XZT SLO183UFV−68/86 100591−04 ARM−2007 68,000 0.50 gph x 80° B 4−3/4 2−3/4 AF46XTH...

  • Page 21: Service

    NOTE − A heat exchanger clean-out kit ABRSH380 Service (35K09) is available from Lennox. The Kit includes one radiator brush (which consists of a tapered brush with CAUTION a 36" spiral wire handle). GeniSyst Primary Burner Control Do not tamper with unit controls. Call your qualified service technician.

  • Page 22: Troubleshooting

    Table 10 Reset Button Operation Pushing the reset button will: If the burner is in the below state: Button Click Button Hold Button Hold (press < 1 second) (press > 1 second) (press 15+ seconds) Reset from Restricted o r f (Hard) Lockout Valve−on Delay, Trial for Disable the Burner:...
  • Page 23 Troubleshooting: Blower Control Operating Sequence Action System Response Thermostat calls for heat. ST9103A closes oil primary control TR−TW contacts. (W terminal is energized.) Ignition system and oil primary control start the furnace. Oil flows as long as cad cell senses flame. Call for heat energizes burner motor and blower ramping begins for heating mode.
  • Page 24 Troubleshooting: Burner fails to start. Source Procedure Causes Correction Thermostat in OFF or COOL Switch to HEAT. Thermostat Check thermostat settings. Turn thermostat to higher tem- Thermostat is set too low perature. Burner motor overload tripped Push reset button pump motor. Primary control tripped on safe- Check burner motor, primary Reset primary control.
  • Page 25 Troubleshooting: Burner starts, but no flame is established. Source Procedure Causes Correction Check tank gauge or use dip No oil in tank Fill tank. stick. Coat dip stick with litmus paste If water depth exceeds 1 inch, Oil Supply Water in oil tank and insert into bottom of tank.
  • Page 26 Troubleshooting: Burner starts and fires, but lock out on safety. Source Procedure Causes Correction Unbalanced fire Replace nozzle Reduce combustion air − check Too much air − −lean short fire If burner con- combustion. tinues to run, Increase combustion air − check this may be Too little air −...
  • Page 27 Troubleshooting: Burner starts and fires, but short cycles (too little heat) Source Procedure Causes Correction Heat anticipator set too low Correct heat anticipator setting. Vibration at thermostat Correct source of vibration. Thermostat Check thermostat. Thermostat in the path of a Shield thermostat from draft or warm air draft relocate.
  • Page 28 Troubleshooting: Burner runs continuously (too little heat). Source Procedure Causes Correction Too much combustion air Reduce combustion air. Air leaks into heat exchanger Correct cause of air leak. around inspection door, etc. Low CO less Adjust barometric draft control than 10%. Excessive overfire draft for correct draft.

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