Lennox International Inc. R/LBF User's Manual
Contents
1. flakes or other deposits coatings or corrosion it is important that you call your autho rized dealer at once to obtain a qualified service inspection Even if no unusual rust or other deposits are observed it is recommended that the furnace be inspected and serviced at least once per year by a qualified service technician Manufactured By A A C A Lennox International Company 421 Monroe Street Bellevue OH 44811 Save these instructions for future reference Page 1 Operating Your Furnace Lighting Instructions 1 STOP Read the previous safety information Set the thermostat to the lowest setting Turn off electric power to the appliance 3 This appliance is equipped with an ignition device Do not try to light the burner by hand Check the oil supply valve Turn on electric power to the appliance Set the thermostat to the desired setting The burner should light and the system should be con trolled by the thermostat If the appliance will not operate call your service technician ol a What to do if your unit is not heating properly If your unit is operating but fails to provide complete comfort check the following before calling for service 1 Be sure the thermostat setting is correct 2 Check to see if the filter is clean 3 Be sure air can circulate freely throughout your home Do not block supply registers or return grilles with furniture or rugs And if you also have cooling 4 Keep surface of2. R 112 125 19 x 21 R LBR 140 168 20 1 8 x 22 7 16 R LBR 168 196 24 5 8 x 24 3 8 Models R LHF and R LHR are not equipped with factory supplied filters The filters for these units are supplied in the field Table 1 Upflow Units To replace the filter in an upflow unit refer to the following directions and Figure 2 Side Return To replace the filter in a furnace with an external filter rack or cabinet on either side of the furnace cabinet 1 Turn off the power to unit 2 The filter s may be removed by sliding toward the front Replace in a reverse procedure Bottom Return To replace the filter in a furnace with a bottom return air 1 Turn off the power to unit 2 Remove lower front panel by lifting up and pulling out 3 The filter s may be removed by sliding toward the front Replace in a reverse procedure Upflow Units Filter Replacement Front Panel pez Filter Filter Rack Filter slides in from front of unit Side Return Bottom Return 44886B001 Figure 2 Basement Units To replace the filter in a basement unit see Figure 3 _h Turn off power to unit 2 Remove lower rear panel by lifting up and pulling out 3 The filter s may be removed by sliding out through the rear of the furnace To reinsert place filter on the two filter supports and slide into unit Basement Units Filter Replacement Figure 3
3. Restore power to the furnace after the door or panel has been replaced and check furnace for proper operation If the unit does not operate call your dealer for service Lubrication Lubrication of the bearings in the circulating air blower motor and the combustion blower motor is not recommended Combustion and Ventilation Air Adequate air must reach your furnace to provide for proper and safe operation Any obstruction of this airflow can cause an unsafe condition which may result in death or permanent injury Lethal carbon monoxide gas can be produced if combustion air is restricted Furnaces located in a closet alcove or utility room must have provision for adequate air supply by means of upper and lower grilles in the door or by the introduction of outside air or both National codes and local code requirements are generally alike However local codes take precedence Venting and Furnace Support Venting of this furnace must comply with our published instruc tions If the installer has not followed these requirements you should request the installer to comply as soon as possible Make sure all flue product materials external to the furnace are clear and free of any obstruction slope upward and have no holes or leaks lt is important that the outside area where the vent terminates is kept clear of any obstructions which might block or impede the venting of the furnace Should any unusual conditions be observed during
4. USER S INFORMATION MANUAL Models R LUF R LHF R LBF R LBR amp R LHR Oil Fired Furnaces A WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life For assistance or additional information consult a qualified installer or service agency A WARNING Do not store combustible materials including gasoline and other flammable vapors and liquids near the fur nace vent pipe or warm air ducts 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 A CAUTION Never burn garbage or paper in the heating system and never leave rags paper or any flammable items around the unit A CAUTION Installation and service must be performed by a quali fied installer or service agency TABLE OF CONTENTS PERIODIC INSPECTIONS OPERATING YOUR FURNACE Lighting Instructions Temperature Control Fan Operation MAINTENANCE OF YOUR FURNACE Cleaning Replacing Filters Combustion Ventilation Air Venting and Furnace Support WARRANTY 44886B001 Congratulations you have one of the most modern oil furnaces made Your unit has been carefully selected to keep you warm and comfortable during the winter months It will deliver superb performa
5. an equivalent heat exchanger towards the purchase of a new Armstrong gas or oil furnace This product must be installed used and cared for in accordance with the instruction manual You are responsible for required periodic maintenance or service such as changing or cleaning of air filters and lubrication or cleaning of components Failure to properly install operate or maintain your unit voids this warranty Owner Record Model Serial Installation Date INSTALLED BY Dealer Address Telephone License Page 4 44886B001
6. cessory products not integral to our product including without limitation humidifier air cleaner vent damper thermostat or other mechanical devices not manufactured by the warrantor Products that have been operated in a corrosive atmosphere where a concentration of acids halogenated hydrocarbons or other corrosive elements causes deterioration to metal surfaces or integral components NOTE Operation in a corrosive atmosphere is considered abuse and voids this warranty 6 Products that have NOT been installed in accordance with our published installation instructions applicable local state provincial or national codes ACCA published standards 7 Products that have NOT been installed by competent qualified installers 8 Products that have been moved from their original place of installation rae wae on Warranty on Replacement Components Any replacement component furnished by us will assume the remaining unused portion of the Limited Warranty Consequential Damages The warrantor shall not be responsible for any consequential damages caused by any defect in the product Some state provinces do not allow the exclusion or limitations of incidental or consequential damages so the above limitation or exclusion may not apply to you NOTE After the first year in the event that a gas or oil heat exchanger is no longer being manufactured by the warrantor the warrantor will allow a credit equal to the then current wholesale price of
7. ean or replace the air filter regularly A dirty air filter can sharply increase the operational costs of your unit in Some cases it can double the cost The air filter should be inspected at least every 6 weeks and cleaned or re placed as required The unit may contain either a disposable filter or a permanent filter The type of filter may be indicated on a label attached to the filter If a disposable filter is provided replace with the same type and size as the original filter If a permanent filter is provided clean filter and place back in furnace To clean a permanent filter shake filter to remove excess dirt and or use a vacuum cleaner Wash filter in soap or detergent water and replace after filter is dry If your air distribution system has a central return air filter grille you do not need a filter in your furnace Be sure to clean the filter grille as recommended above Dirty filters are the most common cause of inadequate heating or cooling performance A clogged filter will not permit adequate 44886B001 airflow This can cause heat exchanger failure or cooling coil freeze up along with the accompanying costly service calls The dealer may have changed the filter size so the information provided in Table 1 may not apply to your installation Always measure the original filter and replace with the same size and type Factory Supplied Filters R LUF 16 x 25 R LBF R LBR 57 72 84 95 18 x 19 R LBF R LB
8. emperature and the cooling temperature desired To put the system into operation push the switch to either HEAT or COOL position After you have chosen the type of operation you desire move the thermostat dial or lever to select the temperature you would like the system to maintain Fan Operation You may wish to increase your comfort by setting your system for continuous air circulation of the indoor air The fan switch on the thermostat permits you to do this see Figure 1 With the switch in the ON position the fan will operate continu ously AUTO position gives fan operation only when the unit is in either heating or cooling Maintenance Of Your Furnace There are routine maintenance steps you should take to keep your unit operating efficiently This will assure longer life lower operating costs and fewer service calls The steps given in this publication are easy to follow and are not time consuming Certain service and maintenance procedures require the skill of a trained service person who has specialized tools and training for their use Please call your dealer for service Personal injury can result if you are not qualified to do this work Cleaning Replacing the Filter 4 WARNING Always turn off the power to your furnace before remov ing the doors or filters Failure to turn the power off could result in property damage personal injury or death lt is very important to cl
9. nce with only minimal help from you To keep your operating costs low and to eliminate unnecessary service calls we have provided a few guidelines to help you with your furnace These guidelines will help you understand how your furnace operates and how to maintain it so you can get years of safe and dependable service For your safety read before operating This appliance is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and oil control which has been under water Periodic Inspections Your oil furnace is designed to give many years of efficient satisfactory service However the varied air pollutants com monly found in most areas can affect longevity and safety Chemicals contained in everyday household items such as laundry detergents cleaning sprays hair sprays deodorizers and other products which produce airborne residuals may have an adverse affect upon the metals used to construct your furnace It is important that you visually inspect the conditions of the burner and vent from the furnace A flashlight will be useful for these inspections Make one inspection prior to the beginning of the heating season and another during the middle Should you observe unusual amounts of rust
10. the outdoor coil free from dirt lint paper or leaves 5 Check and clean indoor coil if necessary This check should be made at the start of each cooling season by your service technician What to do if your unit fails to operate 1 Be sure the main switch that supplies power to the unit is in the ON position 2 Replace any burned out fuses or reset circuit breakers 3 Be sure the thermostat is properly set 4 Ifthe unit still does not start call your service technician Temperature Control There are many types and styles of thermostats Yours may look different from the one pictured in Figure 1 depending on the type of thermostat and whether cooling was installed with the system However almost all thermostats perform the same basic functions described in the following section Thermostat Selector Switch Fan Switch Cooling if applicable amp Heating Temperature Temperature Setting Figure 1 Page 2 Thermostat Operation when you have heating only The thermostat is the only control you ll need to set as the furnace is completely automatic Just set the temperature to the desired comfort level Thermostat Operation when you have heating and cooling There are two switches located on the thermostat One switch controls the heating and cooling functions The other switch is for FAN operation either continuous or automatic On the thermostat is the temperature range for the heating t
11. tion subject to proof of purchase Warranty Begins The warranty period begins when the installation is complete and the product is ready to operate You must be able to verify this date whenever a warranty claim is made Original bill of sale installer s invoice or other similar document will suffice If the beginning date cannot be verified we will consider warranty coverage to begin six months after the date the product was shipped from our factory Limitations on Implied Warranties Implied warranties of merchantability or to the extent applicable fitness for a particular purpose are limited to five years the same duration as the basic limited written warranty provided herein Some states provinces do not allow limitations on how long an implied warranty of merchantability or fitness lasts so the above limitations or exclusions may not apply to you Only Warranty This written Limited Warranty is the only warranty made by the warrantor this warranty is in lieu of and excludes all other warranties express or implied The warrantor does not authorize any person to provide any other warranty or to assume for it any further obligation in connection with the warranted product What is NOT Covered Cabinets or cabinet pieces Normal maintenance items such as filters fan belts fuses or other consumable items Damage caused by misuse failure to maintain properly accidents or acts of God External wiring piping venting or attachment of ac
12. your inspections call your authorized service dealer at once Return Air Check that all return air duct connections are tight and sealed to the furnace cabinet and that all return air grilles or registers are located outside the space containing the furnace Page 3 Limited Warranty August 1 1997 This warranty gives you specific legal rights and you may have other rights which vary from state province to state orovince Warrantor Armstrong Air Conditioning Inc 421 Monroe St Bellevue OH 44811 Armstrong Air Conditioning Inc products are available under the following names AirEase Armstrong Air American Aire Concord Subject to the limitations stated in this warranty we warrant to the first buyer for use the residential heating cooling or heat pump unit when installed operated and maintained as required by this warranty to be free of defects in workmanship or material for a period of five years one year for commercial equipment from the time of installation We will replace any defective component without cost or expense to you except for the costs of delivery and labor for removal and replacement of the defective component The R LUF R LHF R LHR R LBF AND R LBR series furnaces carry a limited lifetime heat exchanger warranty Limited lifetime warranty applies to the original owner in private owner occupied residences All other applications or when the residence is sold carry a 20 year limited warranty from date of installa
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