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Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage.
Refer to this manual. For assistance or additional information, consult a qualified installer or service agency.
Do not store combustible materials, including gasoline
and other flammable vapors and liquids, near the furnace,
vent pipe, or warm air ducts. The homeowner should be
cautioned that the furnace area must not be used as a
broom closet or for any other storage purposes. Such uses
may result in actions that could cause property damage,
personal injury, or death.
CAUTION
Never burn garbage or paper in the heating system
and never leave rags, paper, or any flammable items
around the unit.
WARNING
This furnace is not approved for installation in a mobile
home. Do not install this furnace in a mobile home.
Installation in a mobile home could result in actions that
could cause property damage, personal injury, or death.
The installation of the furnace, wiring, warm air ducts, venting, etc. must conform to the requirements of the National Fire
Protection Association Standard for the Installation of Oil Burning Equipment, NFPA No. 31; the National Electrical Code,
ANSI/NFPA No. 70 (in the USA); the Installation Code for Oil Burning Equipment, CSA Standard CAN/CSA B139 (in
Canada); the Canadian Electrical Code Part 1, CSA 22.1; the Recommendations of the National Environmental Systems
Contractors Association; and any state or provincial laws or local ordinances. Local authorities having jurisdiction should
be consulted before installation is made. Such applicable regulations or requirements take precedence over the general
instructions in this manual.
507148-01
INSTALLATION INSTRUCTIONS
L85UF, L85BF, L85BR
Variable Speed Oil-Fired Furnaces
Save these instructions for future reference
WARNING
WARNING
START-UP CHECKLIST ........................................2
INSTALLATION .....................................................3
Location ....................................................3
Clearances ...............................................3
Venting ......................................................4
Filters ........................................................7
Variable Speed Features ..........................8
START-UP ...........................................................10
OPERATION ........................................................11
MAINTENANCE AND SERVICE .........................13
WIRING DIAGRAM .............................................14
A Lennox International Inc. Company
* 507148-01*
CAUTION
Issue 1406
TABLE OF CONTENTS
Manufactured By
Allied Air Enterprises LLC
215 Metropolitan Drive
West Columbia, SC 29170
(P) 507148-01
Page 1 of 14
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Related Manuals for Airease L85UF Series
Summary of Contents for Airease L85UF Series
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Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS L85UF, L85BF, L85BR Variable Speed Oil-Fired Furnaces Save these instructions for future reference WARNING Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a qualified installer or service agency. WARNING TABLE OF CONTENTS Do not store combustible materials, including gasoline... -
Page 2: Start-Up Checklist
OIL FURNACE START-UP CHECKLIST (Complete this page and keep for future reference) Customer Name ________________________________________________________________________________ Address ______________________________________________________________________________________ City __________________________________________State ________________ Zip Code __________________ Furnace Model # ____________________________________________________ Serial # ___________________ Input Rate __________________________________________________________ Nozzle Used _______________ New Construction ___________________________________________________ Replacement ______________ Date of Installation _____________________________ Installation Data Start-Up Procedure... -
Page 3: Installation
INSTALLATION Position the furnace so the pipe connection to the chimney will be of minimum distance and have a minimum of fittings. Read all instructions before starting work so installation will conform to Underwriters’ Laboratories or Canadian In utility rooms or similar installations, the door or access Standards Association requirements. -
Page 4: Venting
Combustion and Ventilation Air WARNING Adequate provisions for combustion air, ventilation of furnace, and dilution of the gases must be made. Combustion air openings in the front of the furnace must be kept free of obstructions. Any obstruction will If the furnace is installed in a confined space and combustion cause improper burner operation and may result in a air is taken from the heated space, the supply air and fire hazard or injury. - Page 5 Vertical Venting Factory-Built Chimney 1. Local building codes may have more stringent installation requirements and should be consulted Barometric Control before installation of the unit. (in either location)* Factory-Built 2. The flue pipe should be as short as possible to do the job. Chimney 3.
- Page 6 Masonry Chimney Horizontal Venting Barometric Control (in either location)* Liner Barometric Control* Control for Cleanout Horizontal Venting Masonry Chimney Cleanout Front Flue Front Flue Barometric Control (in either location)* Liner Barometric Control* Cleanout Control for Masonry Horizontal Chimney Venting Cleanout Rear Flue * Barometric control must be installed in the horizontal venting Rear Flue...
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Page 7: Filters
2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or Filters restriction, leakage, corrosion, or other deficiencies Optional filter rack kit for Upflow units: which could cause an unsafe condition. • R37398C001 - Sized for 24 X 16 X 1/2 filter 3. -
Page 8: Variable Speed Features
Thermostat For situations where humidity control is a problem, a Locate the thermostat on an inside wall in a room usually dehumidification feature has been built into the variable occupied during the day, such as a living room or dining speed motor. - Page 9 Adjusting Airflow ADJUST*, HEAT, and COOL Taps ADJUST HEAT COOL (on Blower Interface Board) NORM (–) * Placing ADJUST jumper plug in the TEST position energizes the motor to a default factory setting. This TEST can be used to determine if the motor is operating properly. Test pin function is enabled during any mode DEHUMIDIFY of thermostat call.
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Page 10: Start-Up
START-UP Burner Adjustment Oil Burner All adjustment to this furnace and its components must Burner Specification: Factory Settings be done by a qualified service technician. 1. Burner type: NX Refer to Table 2 for nozzle and pump pressure information. The proper way to adjust an oil burner is with a CO analyzer 2. -
Page 11: Operation
Set the NX tip position Set the electrode by aligning tip gap spacing the electrode (5/32”) by adjusting top with the the tips to meet the mark shown two out side marks in Figure 12. shown in Figure 13. Make sure the tips are centered about the nozzle centerline. - Page 12 blower motor runs at 70% of the selected cooling air flow until 1 stage cooling demand is satisfied. Heating A call for 2 stage cooling from the thermostat closes the R to Y2 circuit on the blower interface board. The blower motor ramps up to 100% of the selected cooling air flow.
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Page 13: Maintenance And Service
MAINTENANCE AND SERVICE Heat exchanger cleanout kit #ABRSH380-3 is available for purchase. Oil Burner It is recommended that the nozzle and oil filter be checked Emergency Replacement Motor Operation before each heating season. Also recheck the conditions If the variable speed motor in this furnace needs to be shown on the OIL FURNACE START-UP CHECKLIST replaced in an emergency situation (such as “no heat”) and found on page 2. -
Page 14: Wiring Diagram
Wiring Diagram P/N 48252-001 Figure 17 Page 14 of 14 Issue 1406 507148-01...
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