INSTALLATION and OPERATING INSTRUCTIONS SUMMERAIRE
Contents
1. CANADA UCL S629 M F SWO INSMAN EN REV12. Combustibles Top plenum 6 Front Side Wood 48 One Side 6 Oil Burner rear side 24 Flue Pipe 18 Other Side 24 Base or Floor non combustible Duct work may be reduced to 2 at 72 from plenum Caution Flue Pipe to Controls 12 Installation of the combination furnace Location Refer to C S A B139 CODE FOR INSTALLATION OF OIL BURNER EQUIPMENT for recommended installation practices Consider the following before placing the fur nace The furnace should be centrally located in relation to the outlet registers with large warm air ducts for improved heat distribution during electrical power failures when the furnace has to work on the gravity principle The flue connection to the chimney should be short and direct and consist of as few elbows as possible Sufficient space must be provided for access to the burner the controls and along one side and at the rear of the unit to provide access to the filters and blower See above for required clearances To ensure an easy installation of the two part furnace prepare a cement pad size 50 X 45 at least 2 thick as level as possible It makes alignment of the two parts easier In all cases local building codes should be observed Duct Connection The return air duct connection should be tight so that the blower cannot draw air from he furnace room which can interfere with the combustion air supply A plenum chamber or an elbow type conn
3. as damage will result from care less operation Green wood burns poorly and produces less heat more smoke and creosote For best results burn dry wood or hard coal Do not burn salt saturated driftwood tar products tires or trash Fuel Storage Do not store coal or combustible material within mini mum clearances See minimum installation clearances to combustibles label Store wood at least 8 feet or twice the height of the pile from the furnace To control creosote when burning wood in temperate weather stoke often with a small intense wood fire Do not load to capacity allowing the fire to smolder A low temperature smoldering wood fire generates cre osote The chimney must be capable of a 0 05 in W C draft at all times The safe operating range is from 0 03 to 0 05 W C Note For wood burning shake grates only enough to maintain combustion air through the fire bed How To Use Oil Side There are two thermostats one to control the solid fuel section and one to control the oil operating section Set solid fuel thermostat at its lowest setting to prevent solid fuel damper control form cycling when oil burner oper ates Starting the oil burner The operation of the oil burner is entirely automatic To start it set room thermostat above room temperature Open shut off valve at the oil storage tank set burner line switch to on position bleed air with the bleeder plug on the pump Check th
4. wood load with the heat output required Spring and fall require frequent small charges A small intense fire produces less creosote Short flue pipe runs help to keep the gases above the dew point The interior chimney holds and retains heat longer result ing in less condensation than the exterior chimney A good draft produces a hotter fire and exhausts the flue gases outside more rapidly at higher temperatures pre venting condensation of flue products A combination furnace in need of cleaning will have poor draft creating a lazy fire and eventually if ignored may smoke around the doors when the oil side is running with wood fire Poor draft in a clean system can also produce smoking around the door This choked condition with soot and creosote can only be relieved by cleaning the entire system as frequent as necessary if neglected it will cause a chimney fire which could result in property loss and danger to lives of occupants Wood burning equipment must be vented into a factory built OR masonary chimney Chimneys must be built to Building and Energy Board standards Do not neglect cleaning or deliberately set your chimney on fire to burn out the soot and creosote If no damage is done to the house there will be damage to the chimney caused by extreme heat Not even the best chimneys are designed for withstand repeated chimney fires FACTORY BUILT CHIMNEY MUST BE LABELLED THAT IT COMPLIES TO UNDERWRITERS LABORATORIES OF
5. INSTALLATION and OPERATING INSTRUCTIONS SUMMERAIRE Built Better to Last Longer SWO INSTALLATION AND OWNER S OPERATING INSTRUCTIONS SWO COAL WOOD OIL COMBINATION FURNACE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE OPERATING YOUR SUMMERAIRE FURNACE SAVE THESE INSTRUCTIONS FOR REFERENCE THIS FURNACE MUST BE INSTALLED AND SERVICED BY A QUALIFIED INSTALLER AND WHERE REQUIRED BY LAW A LICENCED TECHNICIAN SUMMERAIRE MFG PETERBOROUGH ONTARIO FOR SERVICE CALL NAME ADDRESS TELEPHONE Installation Instructions Furnace Is Shipped In Six Packages 1 Furnace heat exchanger complete with fire and sash pit doors ash pan grate bars burner mounting plate fibre oil combustion chamber panels including heat exchanger spacer panel clean out tool brick guard 2 Blower section can be mounted left or right hand complete with blower miscellaneous parts bag filters and centre panel for heat exchanger section 3 Burner with flame retention head and oil combustion safety control Field wiring junction box with transformer solid fuel relay blower wiring harness burner cable and fan limit control with support Belt and pulleys Solid fuel damper motor Thermostats for solid fuel and oil Smoke baffle tool Blower motor Draft regulator Shaker handle 4 5 amp 6 Three cartons containing a total of 30 firebricks Installation of the combination furnace Clearance to
6. OTOR 1 3 1 3 1 3 1 3 1 3 1 2 H P BELT 40 40 40 40 40 40 SIZE BURNER FAFC 2 FAFC 3 FAFC 3 FAFC 3 FAFC 3 FAFC 3 SHIPPING 1020 1020 1020 1020 1020 1020 WEIGHT Note All nozzles are semi solid spray pattern Units are shipped with maximum nozzle for each model nozzles can be changed within specified ranges for desired output see above SEE LABEL FOR NOZZLE SHIPPED IN UNIT PULLY TURNS OPEN shown above is a guide ONLY UNIT IS TO BE ADJUSTED TO GIVE 85 F TEMPERATURE RISE Installation of the Combination Furnace cont d Installation Tips Minimum Duct sizes Model Supply Air Return Air SWO 124 220 Sq In 250 Sq In SWO 152 240 Sq In 280 Sq In SWO 169 260 Sq In 300 Sq In The supply air extended plenum size should be the same as Minimum Square inches shown in above table for 8 10 feet from furnace then gradually reduced to the end of the duct system Use a minimum pipe size of 6 inches in diameter in runs and in no case smaller than 5 inches in diameter Recommended minimum warm air plenum height 24 Set blower C F M to obtain 85 F temperature rise through unit when fired on oil Finally We stress that it is your obligation to see that 1 Owner receives A Owner s Operating Instructions B This set of Installation Instructions That installation is made in accordance with C S A Installation Standard B 139 or the National Building Code o
7. als or fluids to start the fire Never fire with treated wood or burn garbage gasoline naptha or engine oil Never load wood in firebox higher than height of door sill Do not store combustibles within the minimum installa tion clearances Build a small intense fire at least once a day to reduce creosote build up Clean chimney at least once a year and inspect regularly for creosote build up For safety keep fire charging door tightly closed Do not adjust electrical control settings or blower pulley arrangement Operate the oil side of unit once a week to ensure that it will operate satisfactorily when needed Keep fire door closed and maintain all seals in good con dition Make sure adequate combustion air is provided in fur nace area Firing See separate Coal Firing Instruction in this manual Star the fire in your furnace with paper and kindling only Crumple a quantity of paper and place it on the grates in the fire box Randomly stack kindling on top of the paper allowing for good combustion and air circulation Set your thermostat so that it is 7 10 degrees fahrenheit higher than room temperature This will open the draft damper allowing combustion air into the furnace Light the paper and close the fire charging door When the kindling is burning well put in some hardwood and allow this to begin burning Add hardwood do not fill the firebox above the door sill do not put in too much wo
8. day per week to help reduce creosote formation Clean filters at least once a month and replace with new filters twice a year unless conditions require more fre quent replacement If air flow is obstructed the furnace will run longer and waste fuel Oil blower motor as well as oil burner motor where oil cups are provided at least twice a year with number 20 auto oil 4 or 5 drops for each cup Do not oil blower bearings Contact your installer on any service problems or replacement parts How To Use Solid Fuel Side Burn wood and coal only Do not use with automatic stoker Remove ashes daily as ash build up will result in prema ture grate bar and ashpit failure voiding warranty DO NOT LOAD SOLID FUEL ABOVE FIREDOOR SILL HEIGHT AS OVERHEATING WILL RESULT CAUSING PREMATURE FURNACE FAILURE A FIRE HAZARD AND VOID WARRANTY Adjustment of the solid fuel air damper should never exceed 1 2 inch open A fixed limiter is installed on your furnace to insure this maximum opening and is not to be tampered with Do not use chemical or liquids to start fire To charge or inspect solid fuel side with scrap wood push up smoke baffle and secure with smoke baffle tool over door in full open position Do not operate with fire or ashpit doors open Coal Burning Allow flames to burn through fresh coal charge before closing air damper for low firing conditions eg before banking the fire overnight Load solid fuel carefully
9. e pump diagram attached to the burner As soon as pure oil not foam flows shut burner down and tighten plug The burner will start and operate automatically During extreme winter conditions the oil burner can be safely fired to supplement the solid fuel side for maxi mum comfort Maintenance Ashes never should be allowed to accumulate in the ash pit so they in any way impede the flow of combustion air to the fire Excess ash accumulation can cause the fire to go out and also can cause severe damage to the grates because they cannot cool from a flow of air beneath them Ashes MUST be removed daily and put in a metal container with a lid Clinkers can occur in any coal furnace They are pieces of fused ash that are hard They can become large and therefore cannot be shaken through the grates in a coal furnace When there is an appreciable accumulation the fire will go out because insufficient air is allowed to pass through the clinkers to the burning coal Once clinkers have formed they can be removed only from above the grates This usually means the fire must be allowed to die out before they can be removed Clinker formation can occur from a number of different causes or a combination of causes Some of these are as follows Too hot a fire too much draft Too shallow a bed of coals Too deep a bed of coals Excess shaking Poking the fire from the top Poor quality coal excess ash content Too little air draf
10. ection may be used Sufficient air flow must be provided for efficient opera tion An opening into the furnace room should be made to the outdoors if there is not sufficient air infiltration The equipment has to be installed in accordance with the standards of the National Board of Fire Fire Underwriters Authorities who have jurisdiction should be consulted before installations are made MBFU Standards Include Standards for the installation of oil burning equipment NBFU No 31 Standards for the installation of air conditioning warm air heating and ventilating system NBFU No 90 Building code standards for the installation of heat producing appliances heating ventilating air condi tioning blower and exhaust systems Chimney and Flue Pipe The chimney should be thoroughly inspected and cleaned to ensure safe furnace operation It is very important that the chimney has an adequate capacity and develops a good draft for proper combustion Installation of the Combination Furnace continued Chimney and Flue Pipe 03 to 05 inches WC at the flue connection of the fur nace and 01 to 03 inches draft over the fire Maximum chimney draft should never exceed 0 03 WC since a power failure could cause wood or coal fire to burn out of control The flue pipe must be full size and not lighter than No 24 gauge black iron pipe The flue pipe connection should be short and direct with as few elbows as possible and should sl
11. k and fix position with bolts Install belt tighten it by adjusting the leg leaving belt movement to a maximum of one inch under finger pres sure Install motor wiring harness using push on connec tions NOTE Green centre wire goes to the ground two outside wires on motor leads are interchangeable Remove lower spacer panel screws from furnace section Assemble the blower section by tilting it so the flames fit into the heat exchanger section Screw both sections together How To Mount The Burner The burner is flush mounted with three positioning bolts on the front plate Connect the burner conduit cable pro vided on the wiring harness follow wiring diagram Check nozzle size tightness and chamber alignment Set up burner to 1 Smoke Wiring The Furnace Drawing 3 Each furnace is supplied with the necessary wiring har ness Follow diagrams for wiring and correct location of the controls included in these instructions All electrical equipment and wiring has to installed follow ing the requirements of the Canadian or U S electrical code as well as regulations of local authorities Solid Fuel Damper Control Drawing 1 The thermostat for the solid fuel section activates the damper control which in turn moves the damper flap It is essential that the damper control is at all time in per fect working order Note Adjust damper chain so that damper flap opens no more than 1 2 When oil is used as fuel close a
12. kindling to start the fire Add small compact pieces of hardwood when the kin dling is burning hot The ash door may be opened for start up However close the ash door before opening the fire door to prevent smoke from emitting out the fire door opening When a substantial bed of red coals is built up start adding coal small amounts at a time Continue adding small amounts of coal until there is a solid bed of burning coal Do not add too much at one time Allow sufficient time between each small loading at least 10 to 15 min utes so that each loading has time to thoroughly ignite before the next load is put in For maximum burning effi ciency always fill the furnace to the highest level possi ble A deep bed of coal always will burn more satisfacto rily than a shallow bed Now turn the thermostat to the desired room temperature setting If the ash door has been opened close it to pre vent overfiring which can severely damage the furnace Loading Coal should be added to the fire at least every twelve hours Coal never should be added unless there is a rea sonably hot fire If the fire is burning hot and there is a deep bed of coals full loads of coal can be added at any time However if there is not a deep bed of coals it is best to add small amounts of coal at first Shaking Shaking should be done only with a hot fire Shaking should be done a least once a day but not more than twice a day Best results fro
13. lation of Wood or Coal burning furnaces and failure is not caused by abuse or failure to observe proper operating instructions and cleaning suggestions accompanying the furnace furnace has been fired with the proper type of fuel and maintained in accordance with our instructions furnace has not been fired at an input in excess of its rated or designed capacity furnace has been installed where standard or normal atmosphere prevails and the unit is not subject to excessive humidity dust conditions or chemical atmosphere of any type or any kind which may cause accelerated metal corrosion Warranty extends only to the repair or replacement of parts returned freight prepaid to us and which prove defective after inspection and testing by us Any labour involved in effecting repair or replacement is excluded from the warranty and Trent Metals Limited assumes no responsibility for consequential damages of any kind to persons or property The following forms part of this warranty and is intended to elaborate on specific points of our Limited Warranty Warranty on above units will be denied as per the following 1 Rusting of the secondary heat exchanger where obvi ous cause is improper cleaning particularly at the end of each heating season to prevent damp creosote from attacking the heat exchanger material or a defective or improperly installed humidifier leaking water onto the heat exchanger 2 Warpage and cracking above the top
14. ll combustion air inlets to solid fuel side of furnace Excessive air decreases the oil burner efficiency How To Install Fire Brick Drawing 2 1 Place bottom row of bricks in fire box Make sure bricks are in brick plate support frame which is an integral part of the box 2 Repeat second and third rows of brick 3 Install stainless steel front brick guard using bolts provided 4 Install fourth row of brick sides and back 5 Install U shaped top brick guard inserting open ends of guard into loops provided on inside of door opening Note Due to the taper design of firebox mortar is not required Grates are shipped installed in furnace Drawing No 1 Round holes for secondary air Secondary Air Control Damper motor and bracket Secondary Air Control Side Open link in chain a a SOF S00 sooponsct es i l oses o nevew Summeraire Model S W O Drawing No 2 Fire Brick Layout and Installation Fire brick retaining angle fits over top row of bricks Stainless steel brick guard secured inside fire door with two screws Summeraire Model S W O Drawing No 3 Instructions for Wiring and Control Position S W O Furnace Fan amp Limit bracket Wire harness 6 min from flue _ _ _ Straight connector H s O eF Solid fuel relay Cable clips Junction box H ess NN x Straight connection f fia ae E Wire harness ca 4 Mi
15. m shaking will occur if short choppy strokes are used rather than long even strokes The amount of shaking is critical Too little or too much can extinguish a fire due to blocked air flow The proper amount normally occurs when red coals first start to drop through onto the bed of ashes Be sure that a small amount of ash is left on the grates to protect them from direct heat of the burning coal Eastern Soft Coal Due to the coking tendencies of Eastern Canadian Soft Coal these coal burning instructions must be followed exactly and coal must not be built up above the door sill ash deposits must be kept off grates and the ash in the ash pan must be allowed to build up under the grates Failure to adhere to these instructions will void warranty What to do when your oil furnace fails to start 1 Raise your thermostat to 5 C 10 F above the present room temperature 2 Make sure your burner switch is in on position 3 Check the fuse box for blown fuses Replace with fuses of correct amperage 4 Press the reset button on relay box once only Box is located on burner 5 If you hear a hum from the burner and the motor has not started press the button on the oil burner motor If oil burner fails to start or runs only for a few seconds call a reputable serviceman Caution Never start oil burner under the following conditions 1 If excess oil has accumulated in the combustion chamber 2 If f
16. n from Front plate Straight connector oOo ene REN AN zi Oil relay Junction box Heat Exchanger space panel Summeraire Model S W O syesow y Aejoq owi WSL ULM rer boon La p sn4 999 09 lddn S A 021 i T N N D i pam Aiojoe v VSOV8 s9604 YUM e1 x3 uodo p a ds om JO AIM POM Pela JOJOY JeUINg puna JOSUeS ewe 4 u Io SS UJEH AIM 100i JOMOIg 26 EF 3009 1Y9I4 19373 TWNOILWN OL WdS N HLIM JONVGHOOOV NI ANOQ 34 OL ONIYIM TIY V S N NI 3 LON yum ueg pun ueg ar90 19001 JoUOD WWI 9 Ue Summeraire Model S W O Wiring Diagram Specifications for SWO Furnaces MODEL SWO 124 2 SWO 124 3 SWO 151 SWO 169 B T U 112000 124000 135000 140000 151000 169000 BONNET NOZZLE 1 00 70 NS 1 10 70 NS 1 20 70 NS 1 25 70 NS 1 35 70 NS 1 25 70 NS COMBUSTION SA 2 SA 2 SA 2 SA 2 SA 2 SA 2 CHAMBER AIR 2 16X 24 2 16X 24 2 16X 24 2 16X 24 2 16X 24 2 16X 24 FILTERS EXT 20 20 20 20 20 20 STATIC C F M 1300 1350 1450 1500 1700 1900 BLOWER MAKE DELHI DELHI DELHI DELHI DELHI DELHI BLOWER SIZE G10 2 G10 2 G10 2 G10 2 G10 2 G10 2 BLOWER 8 8 8 8 8 8 PULLEY MOTOR 3 1 4X 1 2 3 1 4X 1 2 3 1 4X 1 2 3 1 4X 1 2 3 1 4X 1 2 3 1 4X 1 2 PULLEY TURNS 4 1 2 3 1 2 2 1 2 2 1 1 2 1 OPEN M
17. od at one time during initial start up as you could smother the fire When fire has been established properly set thermostat to your desired setting The thermostat controlling the wood section should be set at 5 above the oil section thermostat i e set oil section thermostat at 18 C 65 F and the wood section thermostat at 21 C 70 F Maintaining Fire You will be required to maintain the fire in you home manually The rate at which you have to charge your furnace will vary with the size of house type of wood and weather conditions When the fire in your furnace is not great enough to properly heat your home the air circulation blower fan will begin to come on more frequently In a few days you will establish the basic recharging period for your specific application It is better to build small intense fires than building large smoldering fires as they reduce creosote build up Ash Removal Keep your ash pit clean never let ashes build up to the underside of grates This will prevent overheating of ash pit and grate bars Move Solid Fuel Thermostat to a low setting to allow damper Flap to close Using short choppy strokes shake ash in fire bed allow ing it to fall through into ash pan Using gloves or some type of protection from the live coals that may be in the ash pan remove the ash pan and dispose of ashes in a steel container with a tightly fitting lid and take out of doors immediatel
18. ope up toward chimney Make certain the flue pipe or thimble does not project into the chimney flue All sections of the flue pipe should be fastened with sheet metal screws Under no circumstances should the flue pipe contain a hand operated damper Warning Do not mount flue pipe close to or in front of limit and operating controls Draft Regulator The draft regulator may be located on either the vertical or horizontal section of the flue pipe The best location is 18 from the furnace flue outlet The regulator must be level without leaning forward or backward and the pivot ing axis has to be horizontal Follow instructions for installation which is supplied with the Draft Regulator Thermostats Select a location which is representative of the average house temperature usually the living room The thermo stats should be mounted on an inside wall never where they will be subjected to drafts warm or cold above a radio or television set or where the sun s rays or heat from registers will affect them See instructions supplied with the thermostats For masonary chimneys consult manufacturers tables Furnace Assembly Set down the heat exchanger Before assembling the blower section assemble motor adjust the leg for belt tension Install blower and motor pulley Assemble the motor to the blower section on the motor mounts which are already in place Line up pulleys with straight edge by sliding motor along the trac
19. r NBFU No 31 Owner is fully instructed in operating furnace and in all procedures necessary to ensure its complete and safe operation Limited Warranty SWO Trent Metals Limited warrants on a limited basis this fur nace to be free from defects in manufacturing as follows 1 Heat exchanger is warranted for a period of ten years as detailed below 2 Electric controls and outside casing or jacket are warranted for a period of 1 year from the date of installation 3 Furnace incorporating any of the below listed features shall carry a 1 year warranty from date of installation on this equipment a Combustion air fan in place of draft damper motor blower fan and motor b Grates and shaking mechanism c Firebrick providing it is properly installed and not damaged by careless firing habits Heat Exchanger Limited 10 Year Warranty Cost to owner of replacement heat exchanger expressed as a percentage of the retail price in effect at the time of shipment of the replacement heat exchanger First 5 years after date of original installation 0 replaced no charge From year 5 through year 6 20 From year 6 through year 7 40 From year 7 through year 8 50 From year 8 through year 9 60 From year 9 through year 10 80 From year 10 and over 100 The foregoing warranty applies only where installation has been made in full accordance with Federal and Local Laws and Codes or ordinances applying to instal
20. row of firebrick Note Your furnace requires periodic cleaning throughout the heating season Also at the end of the heating season your furnace must be completely cleaned including all areas of the secondary heat exchanger where creosote residue may accumulate and attract moisture from damp basement areas Remember the warranty of this unit specified it covers the materials and workmanship of the unit It does not cover damage resulting from improper firing practices or maintenance procedures Please follow our instructions and keep your unit oper ating at peak efficiency and keep the warranty on your unit valid A heat exchanger replaced under warranty assumes only the remaining unexpired portion of the 10 year warranty period determined by the date of original installation This is the only warranty applicable to Summeraire Furnace Owner s Operating Instructions Important These Entire Instructions Must Be Read These entire instructions must be read to ensure the best possible operation and safest use of the furnace Manufacturer s recommendations and codes set down by regulating authorities must be followed when installing and operating furnace ALL solid fuel burning furnaces manufactured by Trent Metals Limited have been tested for safety by the Canadian Standards Association Laboratories and carry their Certificate of approval which is recognized by Insurance Underwriters in Canada Cautions Do not use chemic
21. t after a long hot fire Safety Whenever a loading door is opened it always should be cracked slightly before full opening to allow oxygen to enter and burn any combustible gases that are present Failure to do this could result in sudden ignition of the unburned gases when the door is opened A furnace never should be filled with excess coal so that the flue gas exit is in any way blocked or impeded Burning coal generates carbon monoxide If the flue gas exit is blocked the carbon monoxide can be forced out of the furnace that does not have an airtight unified chim ney system The furnace should be used only with chim ney systems that provide a strong reliable draft With the exception of the start up period an ash pit door NEVER should be left open Do not use an automatic stoker with this furnace Note After a coal fire goes out all the coal must be emptied from the furnace and the complete starting process must be repeated The coal burning learning process is often long and frustrating but once the proper procedure is established and followed coal burning becomes a reasonably simple process with the benefits of long burn times and evenness of output over the entire length of burn Coal Burning Instructions The flue draft must be 05 W C to allow combustion gases to flow freely out the chimney Turn the solid fuel thermostat up to a setting well above the room tempera ture to open draft flap Use paper and dry
22. t procedure did not end with the oil burner cutting off the limit control is defective If the limit control is defective immediately replace it with one of the following Honeywell L4064J 5 insertion limit setting 205 F positive stop Warning If the limit control is defective the furnace is unsafe to operate Emergency Procedure Soot or Chimney Fire 1 Close damper door by unhooking chain 2 Close fire door 3 Do not remove flue pipe before fire is completely out 4 Call the fire department Run A Way Fire 1 Close damper door by unlocking chain 2 Close fire door 3 Close off all air from entering the firebox 4 Fully open barometric damper to reduce draft 5 Douse the fire with water to reduce the rate of com bustion if necessary Power Failure 1 Close damper door by unhooking chain 2 Close fire door 3 Remove access door at each end of furnace blower compartment 4 Open all air registers fully and furnace room door to give better circulation 5 Do not load fire box higher than 1 4 way up during gravity firing 6 The combustion air can now be supplied by opening the secondary air control 7 Open all warm air registers full open Registers must not be obstructed by furniture or drapes 8 Continue to operate a small fire for duration of power off period Do not expect to maintain maximum com fort under no power conditions To prevent injury do not allow anyone who is unfamiliar
23. urnace is full of vapour 3 If combustion chamber is very hot 4 Do not throw lighted paper into combustion chamber when motor is running but oil is not burning Procedure for checking the proper function of the limit safety control This procedure is CSA requirement and must be carried out by service man 1 Once each heating season 2 After an extreme wood fire 3 After the unit has been used in gravity conditions without electrical power The objective of this procedure is to temporarily over heat the furnace to prove the limit control is operational a Fire the furnace with oil Wait until the circulating air blower is running Move drapes or furniture that may be damages by heat away from the warm air registers b Adjust the oil thermostat to its highest setting in order to keep the burner operating c Insert a duct thermometer to its highest warm air duct at a point 12 inches downstream from the furnace plenum If the limit control is functioning correctly the burner will shut off on high limit before the thermome ter reads 200 F d To begin the test close all the warm air registers then block the cold air returns with newspapers e Watch the oil burner and note the temperature of the warm air when the burner shuts down CAUTION If the warm air temperature exceeds 200 F without the oil burner shutting down quickly open the warm air registers and remove the blockage from the cold air return If tes
24. with the operation of the furnace attend it 9 On return to normal power operation return all altered items to their normal operating positions For more information read labels and manual carefully NOTE THE EXCESSIVE HEAT CAUSED BY AN EXTREME FIRE MAY DAMAGE THE FURNACE SAFETY CONTROLS THEIR OPERATION SHOULD BE CHECKED BEFORE THE FURNACE IS RETURNED TO SERVICE SEE PROCEDURE FOR CHECKING PROPER FUNC TION OF THE LIMIT SAFETY CONTROL Creosote Important Woodburning Information Creosote is the tar like substance that forms on the heat exchanger flue pipe and chimney when burning wood Wood combustion is never complete a visible sign is smoke coming from your chimney Wood when freshly cut can contain as much as 50 moisture depending on the type Air dried wood when under ideal conditions will still contain approximately 20 moisture The moisture along with flue gas prod ucts are vented outside by way of the flue pipe and chimney Flue gas products when chilled condense into liquid creosote which may become a crystal Solid form as temperatures increase with heat requirements The heat control method on furnaces when burning wood is the size of the fuel charge along with the control of combustion air to increase or decrease the rate of burning which governs the heat output To help prevent creosote in both grate and base burners burn dry seasoned wood hard wood is more desirable than soft wood Govern your
25. y Other waste should not be put in this container Replace ash pan close clean out door and move solid fuel thermostat to normal operating setting Furnace Maintenance and Care Establish a routine for the storage of fuel care of the appliance and firing techniques Check daily for creosote build up until experience shows how often cleaning is necessary Be aware that the hotter the fire the less cre osote is deposited and weekly cleanings may be neces sary in mild weather even though monthly cleanings may be enough in the coldest months Have a clearly understood plan to handle a chimney fire To control creosote when burning wood in temperate weather stoke often with a small intense fire Heat requirements should determine the size of the wood fire To help control creosote build up in furnace burn well seasoned hard wood sun dried in an open area for at least 12 months DO NOT CLEAN OIL SIDE COMBUSTION CHAMBER Do not allow any wood fire to smolder and cool the flue system as this type of operation condenses the flue gas products creating creosote Keep your ashpit clean Never let ashes build up to the grate bed This will prevent overheating of ashpit and grate bars When burning solid fuels load your fire box up to the height of the doorsill Do not overfill Combustion air is supplied over the fire bed by air holes in the fire door to help retard creosote formation in the flue systems Operate oil side one
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