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Call 1-888-370-6531 for Technical Support

7. Troubleshooting

Your heater is designed and built for years of reliable service with regular maintenance. Should

you experience trouble, refer to this section for troubleshooting guidance.

Do not tamper with the unit or controls if you are not qualified – call

your service technician or Technical Support for assistance.

Testing may include working with high voltage electricity, which if mishandled

may cause serious injury or death.

Start Here – First Steps of Trouble Shooting.

It has been our experience that many problems can be traced to improper installation,

improper maintenance, poor fuel quality, or unintended results from changes made to the

system or surrounding structures. So, the first steps in troubleshooting shall always begin with

the following:

Verify installation and environmental factors. Refer to Chapters 2 through 4. Remember that

even if the original installation was properly performed, there can be unintended results from

changes made to the building or structure.

a. Is there adequate combustion and make up air? Have exhaust fans or other

devices been added to the building that may create a negative pressure within

the building? Has another fuel burning appliance been added to the building or

room? Consider make up air requirements for all appliances.

b. Exhaust Flue System: Check draft setting. Have changes taken place on the roof

that might affect the flue stack? Any obstructions (birds nest, etc.) in the flue.

c. Is the electrical circuit still sufficient, or has it been compromised by the addition

of other appliances to the circuit? Is the power clean?

Verify maintenance. If maintenance has not been performed timely and properly – STOP –

perform ALL maintenance (Chapter 6) before troubleshooting. Smoke, soot, trouble in lighting-

off or tripping out can all be caused by lack of proper maintenance.

Verify equipment. Common things to check are:

a. Is the fuel in the tank low? Has the fuel level fallen below the float switch?

b. Are the float switch and thermostat working properly? Verify continuity between the

two pins in the white plug going into the side of the burner.

c. Is the pickup strainer dirty or clogged? Indicated by a high vacuum reading on the

pump inlet gage.

d. Has fuel condition changed (bad fuel, water in fuel)? Check for water emulsified in oil

at the drain. If bad fuel is suspected, drain the tank and fill with different used oil or

#2 heating oil.

e. Has the nozzle or solenoid valve become clogged. Indicated by a high

pressure reading on the pump outlet gauge.

f. Is the air compressor making the correct pressure? Check the air pressure

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Содержание MX 75

Страница 1: ...ation Operation Manual Multi Fuel Waste Oil Heater Model XT 75 115V 60Hz Lanair Products LLC 4109 Capital Circle Janesville WI 53546 www lanair com 1 888 370 6531 Item 81010044 Rev D Issue Date 23 August 2021 ...

Страница 2: ......

Страница 3: ...rom information provided in this manual Installations in Canada shall be in accordance with the regulations of authorities having jurisdiction and installation practice shall be made according to CSA standard B139 Installation Code for Oil Burning Equipment Product improvements are occurring regularly so the products may vary slightly from what is shown in this manual If you have any questions or ...

Страница 4: ...tion 8 4 Electrical System Installation 9 4 1 Wall Thermostat Standard 9 4 2 Main Electrical Connection 10 5 Startup and Operation 11 5 1 Do s and Don ts Tech Tips 11 5 2 Burner Primary Control Operation 11 5 3 Safety Systems and Warnings 12 5 4 Heater Startup 13 5 4 1 Priming and Starting the Heater 13 5 4 2 Burner System Checkout 14 5 5 Everyday Operation of Your Used Oil Heater 17 6 Maintenance...

Страница 5: ...ubleshooting 30 8 Appendices 32 8 1 Wiring Diagram 32 8 2 Primary Control Instructions 34 8 3 Chimney Flue Installation Instructions 38 8 4 Heater Specifications 42 8 5 75H Heater Maintenance Schedule and Log 43 8 6 Limited Warranty 44 ...

Страница 6: ...t Lanair for help with finding a qualified installation and service company Failure to install and maintain your heater properly will void your warranty and the UL listing Do not attempt to start the burner when excess fuel has accumulated inside the heat exchanger when the heater is full of vapor or when the combustion chamber is very hot Do not start the burner unless all cleanout panels are sec...

Страница 7: ...tions are taken in managing their used oil Combustion Exhaust Gases The exhaust products from the combustion are dangerous to breathe The heater must be attached to a flue which properly vents the exhaust out of the building to the atmosphere at all times to assure safe and proper operation of the burner If proper draft cannot be established changes to the building construction or a draft inducer ...

Страница 8: ...ifting and handling Always follow safe practices and use proper equipment Never climb on the equipment Do not take risks when installing or servicing the equipment All cover plates enclosures and guards must be maintained in place at all times except during maintenance and servicing Failure to observe general safety rules and to follow safety rules specific to the tools and equipment used or being...

Страница 9: ...ordance with this manual and in accordance with all the regulation authorities having jurisdiction as well as CSA Standard B 139 Installation Code for Oil Burning Equipment Electrical installation in Canada shall be in accordance with the Canadian Electrical Code Part I CSA standards are available at www csa ca A qualified installer is an individual or agency who is responsible for the installatio...

Страница 10: ...mples of substances that should never be added include but are not limited to Gasoline Hazardous Waste Anti freeze Carburetor Cleaner Paint Thinner Any Chlorinated Material Parts Washer Solvents Oil Additives Animal Fats Vegetable Cooking Oils The addition of inappropriate substances to the fuel is not approved and can lead to poor equipment performance premature product failure and or explosive h...

Страница 11: ...ble codes and regulations for precedence Non compliance to minimum clearances may result in fire explosion personal injury or death Minimum Clearances per U L Listing Front 24 Sides 18 Rear 6 Flue Pipe Single Wall 18 18 46 cm from outer surface of single wall flue tee pipe in all directions 6 45 7 cm from rear of cabinet 24 61 cm from front of cabinet 18 46 cm from sides Mount to non combustible f...

Страница 12: ... designed to be used with ductwork 5 Maximize the vertical run of flue and avoid horizontal runs Allow access for clean out 6 Mount the wall thermostat to an interior wall Do not allow it to hang by the wiring harness Do not mount it to the heater cabinet 7 Another source of heat is recommended for periods when the heater may be off line for maintenance or for any other reason 2 2 Heater Placement...

Страница 13: ... Structural Requirements Canada In Canada the structure in which the used oil burning appliance is housed shall be no less than 4 6m 15ft high at the point where the appliance is situated and have a minimum length and width of 6m 20ft and a minimum floor area of 37m2 400ft2 In addition the installation including flue stack height requirements and distance from property line shall be in accordance ...

Страница 14: ...t is important that you review all safety rules in this section and all safety rules in the manuals provided with your manufactured flue kit If you have any doubt about your ability to complete the installation in a safe and workmanlike manner you should arrange for a professional installation For more regulatory information regarding flue pipe installation consult NFPA 31 and your local fire prot...

Страница 15: ...e double wall product used Install flue system per the flue manufacturer s instructions making sure to fully comply with national safety standards such as NFPA 31 54 and 211 Refer to fire and building codes for further requirements Improper installation of the flue system could result in property damage serious injury or death Whenever possible avoid 90 degree elbows and horizontal runs as these w...

Страница 16: ...nufacturer instructions for clearances through ceiling roof and any 24 Gauge minimum Steel single wall flue with at least 18 of clearance to combustible surfaces non enclosed heated space areas only check local codes Secure each joint with 3 screws or rivets Each heater must have its own flue Do not share flue systems enclosed space check local codes Minimum stack height 10 feet plus 1 foot for ea...

Страница 17: ...ate the tubes as only one is needed Attach the one end of a tube to the draft gauge port labeled Low at top of the gauge Note By doing this the negative readings will now read positive on the gauge scale This is to take advantage of the larger scale on the positive side 6 Locate the draft gauge probe which is a piece of stainless steel tubing with a U bend in it Thread a 1 4 inch barbed fitting in...

Страница 18: ...ion Locate the thermostat five feet 1 5 m above the floor on an interior wall not in the path of warm or cold air Do not mount the thermostat on a cold exterior wall Do not install the thermostat on the heater Follow the mounting instructions that were provided with the thermostat to mount the base Locate the provided two wire thermostat cable with the white plug on one end Connect the black therm...

Страница 19: ...lexible metal conduit with white black and green wires NEC size 14 AWG 3 Remove cabinet wire box cover 4 A standard knockout hole is provided on the back side of the wiring box for installing the power wires Strip the ends of the wires approximately inch 5 On the cabinet wire box terminal block connect the black wire hot to the terminal marked BLK the white wire neutral to the terminal marked WHT ...

Страница 20: ...ary Control which is set to a 30 second trial for ignition and a 2 minute post purge burner off delay after a call for heat The two T Terminals are for the thermostat signal To simulate a closed thermostat you can jumper across the two T terminals with an alligator clip The two F Terminals are for the cad cell signal The cad cell is a light sensor inside the burner that senses the flame To simulat...

Страница 21: ...ation of unburned fuel in the combustion chamber potentially generating smoke rumbling and or misfiring once the burner lights Primary Control Recycle Mode Once a flame has been established if the burner loses flame for any reason the Primary Control will shut off the burner and enter Recycle Mode After approximately 60 seconds the Primary Control will attempt to restart the burner If no flame is ...

Страница 22: ... T2 terminals of the primary control with an alligator clip or short wire 5 Once the burner motor starts running bridge the F1 and F2 terminals of the primary control 6 Monitor the view port on the side of the heater to confirm the presence of ignition spark and observe the status of the flame If no spark is visible in the view port remove the F1 F2 bridge and allow the primary control to automati...

Страница 23: ...mn WC Draft Gauge Knob Weight Damper Door 0 04 Inches WC Draft reading and adjustment If the draft gauge reading is less than 0 04 inches of WC Loosen the adjustment weight on the barometric damper door then slide it to the right or closer to the damper door pivot axis and retighten it If the draft gauge reading is more than 0 04 in WC Slide the weight to the left or away from the damper door pivo...

Страница 24: ...ng a clogged nozzle or solenoid valve obstructions in the nozzle block or possibly the solenoid valve is not opening properly Clean or repair as necessary Vacuum Gauge The vacuum gauge on the inlet of the pump should read between 0 and 5 inches of mercury Hg If the vacuum reading is above 5 in Hg the filter screen inside the tank will need to be removed and cleaned If the reason for high vacuum ca...

Страница 25: ...st the shutter loosen the locking screws then rotate the shutter and retighten the locking screws Burn Quality Smoke Measurement A qualified service technician may measure smoke content following procedures of his smoke pump Acceptable results per smoke pump comparison chart zero or 1 smoke spot A yellow brown smoke spot color is normal when burning used oil due to the presence of non combustibles...

Страница 26: ... 4 for a list of approved fuels Monitor the bottom of your tank for water and drain it off on a regular basis To extend the cleaning interval of the in tank filters pre screening the oil prior to putting it into the tank is recommended Monitor the System After your initial set up monitor the system gauge readings on a regular schedule to assure that the system is stable Record the readings and any...

Страница 27: ...enance Wear proper safety equipment for the tasks including a HEPA quality dust mask to avoid inhalation of ash dust when cleaning the heat exchanger or flue Use suitable access aids equipment when working on the heater Do not climb on the heater General safety rules and precautions should be followed at all times to prevent any accidents that could lead to personal injury or property damage Only ...

Страница 28: ...ention head settings annually Sect 6 4 5 Clean inspect solenoid valve and replace O rings annually Clean inspect nozzle and flame retention head annually and replace nozzle or O ring when needed Clean fan annually Clean fuel fill filter basket annually or as needed Drain water from tank as needed Clean tank as needed Inspect monthly Always wear personal protective equipment when performing inspect...

Страница 29: ... or if there are signs of incomplete combustion or smoke or if unburned fuel has accumulated in the heat exchanger Tools Required 5 16 nut driver socket ratchet and open ended wrenches chimney brush work gloves dust mask and safety glasses large heavy duty plastic trash bag and duct tape Personally verify that the main power is turned off and locked out at the circuit breaker ani Heat Exchanger Cl...

Страница 30: ...cuum with a HEPA filter may also be used to remove ash 9 Remove the trash bag and properly dispose of the ash 10 Remove the viewport cover and glass by unscrewing the cover from the viewport tube 11 Clean with glass cleaner If glass cleaner is not effective carefully scrape the glass with a razor blade 12 Reinstall the viewport glass with gaskets and cover Do not overtighten 13 Inspect the cleaned...

Страница 31: ...f and locked out at the circuit breaker Procedure 1 Wear all safety equipment NOTE This job is easier with two people 2 Remove screws from wire guard on the bottom of the heater cabinet 3 Tilt the fan down for access to the blades 4 Gently clean dust from the fan blades Be careful not to damage the blades or the power cord 5 When finished reattach the fan Remove screws and wire guard Gently clean ...

Страница 32: ...uick connect fitting in the nozzle block by pushing the metal ring on the end of the fitting in while pulling the tube out 5 Disconnect the white plug from the receptacle 6 Disconnect the red preheater wires the black temperature switch wires and the black solenoid valve wires from the terminal block To remove a wire push the corresponding button of top of the terminal block down with your finger ...

Страница 33: ...o not overtighten Replace any gaskets or o rings that are damaged NOTE The rubber fiberglass insulation piece is required to prevent arcing between the electrode and nozzle block It is held in place by the electrode ceramic Flame Retention Head Ignition Electrode Electrical Insulation Solenoid Valve Temp Switches Preheater Gasket Flat PTC Heater Oil Spray Nozzle FRH Set Screw Preheater Extrusion A...

Страница 34: ...acked Electrode Tips should be 1 16 1 6 mm behind the end of the Nozzle Nozzle protrudes approximately 1 8 3 mm beyond Retention Head vanes Vertical location of electrode wires 7 16 1 6 mm from center of nozzle to tips of wires Flame Retention Head recessed inside Air Tube 1 16 1 5 mm Nozzle should extend approx 1 8 3 mm beyond Air Vanes Retention Head Air Plate Center Head within Air Tube 7 16 11...

Страница 35: ...ad is centered within the Air Tube If not centered straighten the centering Tabs of the Retention Head if they are bent Loosen the panel nut center the Retention Head and retighten the panel nut if necessary Make sure Air Distribution Plate is properly installed as shown above Make sure to perform startup 5 4 2 and system checks 5 4 3 after every maintenance cycle Record the checks maintenance per...

Страница 36: ...quipment 2 Replace the compressor air filter annually PN 20210112 3 Start the burner by moving the wall thermostat above room temperature and note the air compressor output on the gauge If the gauge reading is in the 3 4 PSI range the air compressor is operating as designed and no further maintenance is required 4 If the gauge reading is below 3 PSI try to increase the pressure by adjusting the ai...

Страница 37: ...ic sleeve for wear or damage Replace if needed the motor may also need to be detached from the burner to for inspection service 11 Reinstall the coupling compressor assembly air tube and air filter Ensure the coupling sleeve ends align properly with the coupling hubs If any part of the coupling needs to be replaced go to step 12 Otherwise go to step 13 12 On the motor side the blower wheel should ...

Страница 38: ...isconnect the three float switch wires Note colors 4 Use the 5 8 and 3 4 wrenches to disconnect the flare fitting at the inlet to the pump 5 Remove the 2 bushing from the tank with a pipe wrench The copper tubing should rotate in the compression fitting as the bushing turns If not loosen the compression fitting 6 Carefully lift the assembly out of the tank taking care not to damage the float switc...

Страница 39: ...other fuel burning appliance been added to the building or room Consider make up air requirements for all appliances b Exhaust Flue System Check draft setting Have changes taken place on the roof that might affect the flue stack Any obstructions birds nest etc in the flue c Is the electrical circuit still sufficient or has it been compromised by the addition of other appliances to the circuit Is t...

Страница 40: ...d clean if necessary h Are the oil preheaters working properly With the thermostat unplugged so the burner will not attempt to start carefully open the burner cover and feel the nozzle block to make sure it is hot i Do unauthorized persons have access to the system Have the controls been tampered with Check factory settings start up Section 5 If your issue persists after verifying these common cau...

Страница 41: ...8 Appendices 8 1 Wiring Diagram ...

Страница 42: ......

Страница 43: ...34 Call 1 888 370 6531 for Technical Support 8 2 Primary Control Instructions ...

Страница 44: ...35 Call 1 888 370 6531 for Technical Support Not used with RES 75 kBTU h units ...

Страница 45: ...36 Call 1 888 370 6531 for Technical Support No latch up with RES 75 kBTU h units ...

Страница 46: ...37 Call 1 888 370 6531 for Technical Support ...

Страница 47: ...ed to run your flue through the wall rather than through the roof as shown in these instructions a thru the wall flue kit will be required If you did not purchase one please contact technical support to order the additional parts needed INSIDE 1 Locate the heater on the floor and ensure a minimum clearance of 6 inches between the back of the heater cabinet and the wall Ensure there is a clear path...

Страница 48: ... in roof and cut an oval hole around it refer to chart above for hole sizing on sloped roof NOTE For a metal roof use the 1 Clearance column For a combustible roof use the 2 Clearance column 7 Loosely assemble Roof Mount Bracket per the instructions included with it Slide the 3 foot long double wall pipe through band on bracket so band is 12 inches from male end of pipe with L brackets towards fem...

Страница 49: ... should be added part 4913 17 Install rain cap to top of pipe Twist to lock in place INSIDE 18 Relocate or uncover heater Install tee and draft control crimped side down into exhaust outlet on top 19 Install crimped to black pipe adapter into tee 20 Install single wall black pipe up to near the end of the double wall pipe NOTE Single wall pipe must have a minimum clearance of 18 inches from any co...

Страница 50: ...r Boot Dektite 8 76001403 Firestop Shield 4920 Slip Connector 6 x 14 74000270 Roof Support Bracket 76001406 Tee and Damper 6 Black 4804 Chimney Pipe DW 6 x 36 76001405 Adapter 6 Crimped to Black Pipe 4909 Chimney Cap 4912 Finishing Collar SW to DW Adapter 4803 Chimney Pipe DW 6 x 24 ...

Страница 51: ...ack Atomizing Air Pressure 3 4 PSI Fan Size 13 Flue Size 6 Unit Heater No Ductwork Fuse Size 8A 15A Max Burner Motor 1 7 HP 115V 60Hz 3450 RPM 1 5A Metering Pump Motor 15Watt 115V 60Hz 0 3A Ignition Transformer Control Circuit 115V 60Hz 1 0A Oil Preheaters 115V 60Hz 3 0A Maximum Heater Weight Tank Empty 210 lbs Heater Dimensions 75 H x 21 W x 26 L Minimum Clearance to Combustible Surfaces Top 18 F...

Страница 52: ...ck retention head electrode settings Annually Clean solenoid valve Annually Check air compressor pressure performance replace filter Annually Clean cad cell lens Annually Check replace burner gasket Annually Test fire furnace after maintenance and check for proper burner adjustment After Annual Maintenance Gauge Readings After Maintenance Pump Vacuum Reading Pump Pressure Reading Draft Gauge Readi...

Страница 53: ...person other than the original buyer 10 Equipment or products installed outside of the continental U S or Canada 11 Products or parts in which the serial number has been altered defaced or removed The buyer must assist the MANUFACTURER S Technical Support group during over the phone problem diagnosis in order to help substantiate a warranty condition A course of action will be determined by the MA...

Страница 54: ...45 Call 1 888 370 6531 for Technical Support 9 ...

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