Lanair MXB-250 Installation And Operating Instructions Manual Download Page 1

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MXB-250
250,000 BTU BOILER

MXB-400
400,000 BTU BOILER

Installation and Operating Instructions

Lanair Waste Oil Heaters & Boilers

4109 Capital Circle

Janesville, Wisconsin 53546

608-752-1601

www.lanair.com

Summary of Contents for MXB-250

Page 1: ...MXB 250 250 000 BTU BOILER MXB 400 400 000 BTU BOILER InstallationandOperatingInstructions Lanair Waste Oil Heaters Boilers 4109 Capital Circle Janesville Wisconsin 53546 608 752 1601 www lanair com ...

Page 2: ...ted 5 Make sure that the surface on which the boiler is to be installed is capable of supporting the weight of the boil er burner and all other equipment supported by that surface 6 A boiler pad is strongly recommended This pad is to be made of poured concrete It should be at least 4 inches thick and should cover the entire area underneath the boiler not just the legs 7 Make sure the location chos...

Page 3: ...upplyPump Piping page 13 Sec 8 TypicalBoilerPiping page 15 Sec 9 BoilerInstallation page 16 Sec 10 BoilerControlsandAccessoryLocation page 20 Sec 11 BurnerInstallation page 21 Sec 12 ElectricalConnections WiringDiagram page 22 Sec 13 CompressedAirInstallation page 24 Sec 14 Controls page 25 Sec 15 StartUpProcedure page 26 Sec 16 PrimingFuelPump page 28 Sec 17 FlameAdjustment page 29 Sec 18 Mainten...

Page 4: ...r 3 Fuel Line Inlet 4 Fuel Pressure Gauge 5 Combustion Air Baffle 6 View Port 7 Oil Primary Safety Control 8 Waste Oil Fuel Oil Switch 9 Quick Disconnect Receptacle 10 Air Supply Inlet 11 Combustion Blower Motor Burner Assembly Performance Ratings Voltage 115 vac Cycles 60 hz Total Operating Amperage 4 9 Weight 31 lbs Oil Primary 0 2 amps Pre Heater Block 2 6 amps Ignitor Transformer 0 3 amps ...

Page 5: ...n 1 Pump Platform 2 Pump Motor 3 Adapter Shaft Cover 4 Pump 5 Pressure Gauge port 6 Easy Flow Bleed Valve 7 1 4 NPT Inlet 8 1 8 NPT Outlet 9 Adapter Shaft Pump Assembly Performance Ratings Voltage 115 vac Cycles 60 hz Weight 24 lbs Pump Motor 5 amps 2 1 3 4 5 6 8 9 7 OPTIONAL J PUMP ...

Page 6: ...6IEW 0ORT LECTRICAL UNCTION OX IMIT 3WITCH 2ELIEF 6ALVE HIMNEY UTLET LOW 3WITCH NOT INCLUDED 3UPPLY ANIFOLD I IMIT 3WITCH 4EMPERATURE 0RESSURE AUGE OW 7ATER UT OFF 3WITCH PTIONAL 2ELIEF 6ALVE OCATION OILER 0ERFORMANCE 2ATINGS URNER UEL ONSUMPTION 0 NPUT 45 UTPUT APACITY 45 ET 2ATING 7ATER 45 2 45 PPROX RY 7EIGHT LBS 6ENT ONNECT DIA 7ATER ONTENT GAL AX PERATING 7ATER 0RESSURE 03 LECTRICAL UNCTION O...

Page 7: ... Supply 2 1 2 FPT Return Clean Out Port Clean Out Port 1 2 3 5 4 6 7 9 8 13 12 14 10 11 FRONT SIDE REAR TOP No Dimension 1 36 2 33 3 6 73 3 8 400 3 4 9 3 8 7 3 4 oc 18 oc 5 oc 29 1 2 oc 250 63 3 8 33 36 12 42 8 8 4 12 5 52 No Dimension 7 8 9 10 11 12 No Dimension 13 14 4 oc 20 oc ...

Page 8: ...RCED VENTILATION SINCE IT CAN CREATE AN UNDESIRABLE PRESSURE DIFFEREN TIAL BETWEEN THE BOILER ROOM AND AIR SOURCE LL BOILERS LOCATED IN CONFINED ROOMS SHOULD HAVE FREE ACCESS TO VENTILATION AND COMBUSTION AIR FROM TWO PERMA NENT OPENINGS NE OPENING SHOULD TERMINATE WITHIN OF THE CEILING THE OTHER WITHIN FROM THE FLOOR SEE IG ACH OPENING SHALL HAVE AT LEAST SQ INCH FREE AREA PER 45 2 OF BURNER INPU...

Page 9: ...SHALL BE THE SAME SIZE AS OPENING BUT NO LESS THAN X OR SQUARE INCHES 2EMEMBER TO COMPENSATE FOR LOUVER BLOCKAGE WHEN CALCULATING FREE AIR 2EFER TO MANUFACTURERgS INSTRUCTIONS OR USE THIS GENERAL GUIDE 7 56 23 LLOW FREE AIR 4 56 23 2 2 3 LLOW FREE AIR NY LOUVER DAMPER SHOULD LOCK OPEN OR OPEN AUTOMATICALLY WHEN THE BOILER OPERATES AXIMUM OUVERED OPENINGS FOR VENTILATION COMBUSTION AXIMUM ...

Page 10: ...AVITY VENTED HEATING APPLIANCE REQUIRES A PROPER AIR MAKE UP SYSTEM TO PREVENT THE HEATER EXHAUST GASES FROM BEING DRAWN INTO THE BUILDING 4HESE GASES COULD CAUSE DEATH SERIOUS INJURY AND OR PROPERTY DAMAGE XHAUST FANS PAINT BOOTHS MAY CAUSE DRAFT PROBLEMS EVER VENT THIS BOILER INTO ANOTHER HEATING APPLIANCES CHIMNEY EVER VENT INTO LASS vCHIMNEY AS BOILERS USE h LASS vCHIMNEY IT IS RATED FOR A MUC...

Page 11: ...be capable of producing a negative 02 W C draft when cold and 06 W C draft when hot Refer to Section 5 Draft Instructions 18 If you are unable to attain the proper draft check for exhaust fans in the building To test if there is a problem open an overhead door and see if you now have the proper draft You may have to add one or more sections of Class A chimney to the roof to get the proper draft 19...

Page 12: ...y Strainer P N 9807 PUMP ASSEMBLY Check Valve P N 8662 inside tank Strainer Suction Line P N 8748 PUMP ASSEMBLY TOP VIEW 3 8 Copper Tube P N 9182 3 8 Fuel Line To Burner not included STORAGE TANK STORAGE TANK 1 2 pick up tube not included 3 8 Fuel Line To Burner not included 6 from bottom of tank Vent Fill 1 x 1 2 bushing P N 8904 1 x 1 2 bushing P N 8904 1 4 Nipple P N 8647 1 4 x 1 2 Coupling P N...

Page 13: ...al Requirements Fuel Pump Piping 1 Mount the fuel supply pump in a horizontal position shaft horizontal near the fuel supply tank 2 The oil pump has a maximum suction lift of 14 feet Suction lift is the length of pipe run from the bottom of the pick up strainer to the fuel supply pump 3 The fuel pump motor are for indoor use only 4 The fuel pump contains an internal strainer that periodically need...

Page 14: ...l Failure to install this line properly will result in damage to your boiler and will void your warranty The use of smaller line or rubber plastic or hydraulic line is unsafe and will void your warranty 14 Install the fuel supply line from the fuel regulator relief valve assembly to the inlet port on the left side of the burner using 3 8 outside diameter copper tubing NOTE THE MAXIMUM DISTANCE OF ...

Page 15: ...EBSITE AT WWW LANAIR COM 3ECTION 4YPICAL OILER 0IPING 3YSTEM 3UPPLY 3YSTEM 2ETURN 0RESSURE 2EDUCTION 6ALVE ACKFLOW 0REVENTER 3YSTEM IRCULATOR MTROL IR LIMINATOR OR QUAL ROM ITY 7ATER 3UPPLY XPANSION 4ANK IR 3EPARATOR HECK 6ALVE LEND 0UMP HECK 6ALVE LEND 0UMP v A X v X A 4 3 s 3IZE SECONDARY 0UMP 0 AT GROSS BOILER OUTPUT FOR A vDROP s 7HEN CALCULATING PUMP HEAD THE MAXIMUM BOILER RESISTANCE FOR ANY...

Page 16: ...askets c Two 2 3 4 male x female extension couplings for optional controls s Box marked 2 Controls Box a High Limit with 3 4 well and capillary clip b Temperature Pressure Gauge c Relief Valve d Flame sight assembly e Four 4 spacers to secure back jacket panel f Burner mounting hardware g 1 to 3 4 reducer h Insulation and Mortar s Box marked 5 Low Water Cut Out s Chimney Adapter Placement 1 Move t...

Page 17: ...ASKET ASKET ASKET IFFUSER 4 0 2 44 2 OTE 4HREADS USED ON THE STUDS IS METRIC NY ATTEMPT TO USE STANDARD NGLISH THREAD ED STUDS IN PLACE OF THOSE SUPPLIED WILL DAMAGE THE BOILER BLOCK ANIFOLD AND IFFUSER NSTALLATION TTACH SUPPLY MANIFOLD AS INDICATED IN IG NSTALL RETURN PORT DIFFUSER AND ATTACH RETURN FLANGE AS SHOWN IN IG 4 AKE SURE DIFFUSER SLOTS FACE UPWARD SEE IG ...

Page 18: ...DIFFUSER SEE PAGE 17 PARTS LIST 018 HINGE BRACKET factory mounted to boiler 030 ADDITIONAL INSULATION 033 CENTER PANEL 036 RIGHT REAR PANEL 038 LEFT REAR PANEL 040 INSULATING MAT FOR BOILER SHELL FOIL OUT 041 UPPER FRONT TRIM PANEL 043 SETSCREW AF 17 AND SPACER 4 required 060 REAR INSULATING MAT 2 PIECES 086 TOP PANEL 093 RIGHT SIDE PANEL 094 LEFT SIDE PANEL 094 086 060 038 036 093 043 040 018 018...

Page 19: ...ead screws provided Align the left rear jacket panel 038 to the jacket extensions 043 and attach using two 2 M6 x 10 pan head screws provided Align the corresponding holes of the right and left rear jacket panels and secure using five 5 sheet metal screws provided 7 Re attach the flue collector clean out covers NOTE Do not over tighten bolts of the clean out covers Over tight ening may crack or br...

Page 20: ...E BOILER JACKET OUNT THE AQUASTAT TO THE SIDE OF THE BOILER AS INDICATED IN IG NSERT TO REDUCER TO BOILER TOP AND TIGHTEN NSERT SENSOR HOUSING INTO REDUCER AND TIGHTEN NSERT THE SENSOR INTO THE HOUS ING 4 3ENSOR MUST BE FULLY SEATED FOR PROPER OPERATION 2EPLACE THE TOP OF THE BOILER JACKET TTACH THE PRESSURE RELIEF VALVE TO THE PREVI OUSLY ATTACHED X PIPE AND TIGHTEN PRESSURE RELIEF VALVE 4 NSTALL...

Page 21: ...T 0OSITION THE BURNER TO THE DOOR OF THE BOILER AND ATTACH USING FOUR BOLTS AND WASHERS PROVIDED SEE IG FTER THE BURNER IS MOUNTED OPEN THE BURNER DOOR AND SEAL THE VOID BETWEEN THE BURNER DOOR AND THE BLAST TUBE OF THE BURNER WITH THE INSULATION AND MORTAR SUPPLIED WITH THE BOILER ISCHARGE PIPING FROM PRESSURE RELIEF VALVE MUST BE PIPED TO A DRAIN OR MUST TERMINATE ABOVE FLOOR TO AVOID DAMAGE TO ...

Page 22: ...e heater is ready to be started Refer to Section 13 Start Up Procedure Fuel Supply Pump Electrical Installation 1 All wiring must comply with the National Electrical Code State and Local Ordinances and be wired by a qualified electrician 2 The electrical conductors to the fuel pump motor MUST be stranded 14 GA minimum 3 The electrical service connections for the fuel pump motor are made in the ele...

Page 23: ... 5 2 7 9 2 2 0 4 4 2 2 4 2 0 2 4 2 0 7 4 2 4 7 2 2 2 7 4 5 4 3 2 5 4 53 2 7 0 4 6 4 4 4 7 3 9 0 0 5 3 3 2 4 4 2 4 7 3 9 0 0 5 3 3 2 4 4 4 3 2 4 4 2 0 5 2 4 4 3 0 IGURE 2EMOVE WIRES FROM THE BLOCK BY INSERT ING A FLAT TIP SCREWDRIVER INTO THE TOP SLOT 0USH TIP ALL THE WAY DOWN AND PUSH FORWARD 2EMOVE WIRE 0 5 0 2 4 2 3 2 4 2 0 4 7 3 2 2 3 2 4 ...

Page 24: ...REGULATOR IS NOT SUPPLIED WITH THE BOILER 5 If the primary air regulator does not have a filter with a bowl a condensate drain leg must be installed in the air sup ply line 6 Install a quick disconnect at the air filter regulator on the boiler for service 7 For the ease of installation install a flexible air line 250 I D minimum from the quick disconnect to the primary air regulator 8 The air supp...

Page 25: ...alve The Air Filter Regulator is mounted on the cabinet near the burner Electric Air Solenoid Valve The Electric Air Solenoid Valve is controlled by the Oil Primary Control It acts as a shut off valve it s open during operation and closed when the burner is off The Electric Air Solenoid Valve is located inside of the burner s electri cal box Air Operated Fuel Valve The Air Operated Fuel Valve cont...

Page 26: ...4HE 0RESSURE 2ELIEF 6ALVE IS MOUNTED TO THE TOP OF THE BOILER NEAR THE REAR 4HIS VALVE IS USED TO AUTOMATICALLY OR MANUALLY RELEASE EXCESS PRESSURE WHICH MAY BE PRESENT IN THE BOILER 3EE PAGE s 4EMPERATURE 0RESSURE AUGE 4HIS DUAL PURPOSE GAUGE MONITORS SUPPLY TEMPERATURE AND PRESSURE 4HE TEMPERATURE PRESSURE GAUGE IS MOUNTED TO THE SUPPLY MANIFOLD AT THE REAR OF THE BOILER SEE PAGE 3ECTION 3TART 5...

Page 27: ...REACH OPERATING TEMPERATURE EAVE THE PRE HEATER SWITCH IF USING O OR O FUEL OIL 4URN THE ROOM THERMOSTAT UP ABOVE THE ROOM TEMPERATURE IF APPLICABLE 4HE BURNER WILL NOW FIRE CHECK THE SIGHT GLASS ON THE REAR OF THE BURNER ALSO INSPECT THE FLAME THROUGH THE INSPECTION PORT 2EFER TO SECTION LAME DJUSTMENT PAGES DJUST THE BURNER AIR FILTER REGULATOR TO 03 AND THE PRIMARY AIR REGULATOR TO 03 4 03 ON T...

Page 28: ...ATTACHED TO THE BLEEDER SCREW ON THE PUMP 7HEN A STEADY STREAM OF FUEL NO AIR BUBBLES FLOWS CLOSE THE BLEEDER SCREW 2EMOVE THE TUBING FROM THE BLEEDER SCREW BSERVE THE END OF THE FUEL SUPPLY LINE THAT IS DISCONNECTED FROM THE BURNER LLOW A STEADY STREAM NO AIR BUBBLES OF FUEL TO FLOW INTO THE CONTAINER FOR SEVERAL MINUTES 4HIS WILL FLUSH ANY DEBRIS FROM THE FUEL LINE THAT COULD POTENTIALLY PLUG TH...

Page 29: ...TIL THE RUMBLING STOPS WAIT MINUTES BETWEEN ADJUSTMENTS FINALLY OPEN THE BAFFLE AN ADDITIONAL vTO PROVIDE EXCESS OXYGEN 3ECURE THE BAFFLE 3EE IG 4 ECHANICAL EQUIPMENT LIKE GAUGES AND REGULATORS ARE NOT ALWAYS PERCENT ACCURATE RILL A HOLE IN THE SMOKE OUTLET TRANSITION PIECE AND THE DAMPER AND RUN COMBUSTION TESTS USING COMBUSTION TESTING EQUIPMENT DJUST FLAME TO ACHIEVE THE FOLLOWING READINGS 3MOK...

Page 30: ...s Oil pressure and the combustion air baffle may need adjustment Problem Too small a flame similar to a blowtorch 1 Too much atomizing air pressure 2 Too much combustion air pressure 3 Not enough fuel pressure Solutions 1 Correct fuel pressure setting 2 Flame tips reach 3 4 of the way into the chamber 3 Flame has slightly yellow orange tips 4 No black smoke coming from the chimney 5 Ash inside the...

Page 31: ... 9 s HECK THE COMBUSTION CHAMBER FLUE PASSAGES LEAN IF NEEDED SEE PAGE s LEAN THE CHIMNEY CHIM NEY CONNECTOR AND BARO METRIC DAMPER s LEAN PUMP STRAINER SUC TION LINE STRAINER AND PICK UP TUBE STRAINER PP 4 LWAYS PRIME PUMP AFTER CLEANING STRAINERS s HECK FOR DIRT BUILD UP ON THE COMBUSTION BLOWER WHEEL EEP WHEEL CLEAN s NSPECT THE COMBUSTION CHAMBER ASH BUILD UP AND FLAME 5 9 3EASON 3HUT OWN s 3H...

Page 32: ...TO REMOVE ANY ASH FROM THE CHAMBER OR FLUE PASSAGES AILURE TO CLEAN FLUE PASSAGES WILL IMPAIR DRAFT NSPECT THE COMBUSTION CHAMBER AND FLUE PASSAGES 2E CONNECT SMOKE PIPE AND REINSTALL CLEAN OUT PORT COVERS AT REAR OF THE BOILER 4 O NOT OVER TIGHTEN BOLTS OF THE CLEAN OUT PORT COVERS VER TIGHTENING MAY CRACK OR BREAK THE COVERS HECK THE FRONT DOOR AND FLUE COLLECTOR ROPE SEALS 2EPLACE AS REQUIRED 2...

Page 33: ... strainer ensuring the rubber gas kets spring and o rings are in place 6 Fill the lower housing with waste oil or fuel oil 7 Position the lower housing to the top making sure the o ring is properly seated Secure the top and bottom together using the bolt washer and gas ket removed earlier 8 Prime the fuel pump see page 28 Cleaning Replacing Fuel Pump Strainer 1 Disconnect power to the boiler 2 Rem...

Page 34: ... R I A Y L B M E S S A R O T I N G I W E R C S P A C X E H R E H S A W T A L F R O T C E N N O C G N I R O G N I R O R E T A E H E G D I R T R A C R I A G N I R P S T R E S N I N O T I 6 R E G N U L P Y L B M E S S A K C O L B R E T P A D W E R C S P A C D A E H X E H G N I R O Y L B M E S S A M G A R H P A I D W E R C S P A C D A E H X E H K C O L B R E T A E H E R P L I O NJECTER 0IN NNUAL AINTE...

Page 35: ...r assembly blow dry Install new quad ring 4 Before inserting quad ring in air pre heater block a light coat of oil should be applied NOTE Make sure quad ring is properly seated in block before proceeding see page 39 for clarification Apply a light coat of oil to the shaft of the new nozzle assembly 3 Carefully insert new nozzle assembly 3 through the quad ring and into the block Hand tighten until...

Page 36: ...eater 2 9813 1 pre heater face plate 3 9869 6 hex cap screw 4 9869 4 o ring 13 16 OD 5 2901 1 oil block 6 9029 2 fitting 7 9869 2 o ring 5 16 OD 8 8499 1 oil gauge 9 7242 1 hex cap screw 10 9869 1 o ring 1 2 OD 11 7418 1 washer 12 7109 3 plug 13 9366 1 snap disc assembly 14 7242 1 button hex screw Annual Maintenance Oil Pre Heater Oil Pre Heater Tune Up Kit PN 9869 Required contained in tune up ki...

Page 37: ...e oil pre heater block 5 using two hex cap screws Tighten securely 6 Re install Pre Heater Assembly Place the air oil pre heater assembly into the burner body Align the holes of the pre heater assembly with those in the burner body Secure the assembly to the body by re installing the button hex screw 14 and washer 11 NOTE Do not tighten this screw at this time Replace the o rings 7 on the PSI gaug...

Page 38: ...s of the ignitor should be 3 8 above the center of the nozzle assembly and should extend approximately 1 8 beyond the end of the nozzle The tips of the one piece ignitor should be 1 8 apart Adjust as required and tighten nut on the top of the ignitor see illustrations for clarifica tion of placement 5 Re assemble pre heater assembly see pages 34 37 carefully re install the pre heater assembly into...

Page 39: ...d clean thoroughly Re assemble nozzle 4 Carefully remove the quad ring from the block and inspect Replace if neces sary 5 Insert clean new quad ring into the air pre heater block NOTE The quad ring must be properly seated Failure to properly seat the quad ring may result in leakage and improper burner opera tion DO NOT INSTALL QUAD RING ON THE NOZZLE 6 Lubricate pin seat and re install nozzle Tigh...

Page 40: ...does not establish a flame contaminated fuel clean tank 2 Plugged or worn nozzle 2 Clean or replace 3 Fuel pressure gauge 3 See section 7 Page 12 fluctuating pumping system 4 Pre heater switch is turned off 4 Turn switch on or test or defective or defective switch and cartridge heater cartridge heater 5 Transformer electrodes not 5 Test transformer look sparking for shorts repair Replace electrode...

Page 41: ...NG FUEL PRESSURE OR 3EE FLAME ADJUSTMENT PRESSURE FLUCTUATING PAGES 3EE FUEL PIPING PAGE MPROPER COMBUSTION BLOWER 3EE FLAME ADJUSTMENT SETTING OR BLOWER IS DEFECTIVE PAGES 3EE FUEL PIPING PAGE IL PRIMARY CAD CELL DEFECTIVE 4EST COMPONENTS ADJUST AD CELL IMPROPERLY ADJUSTED CAD CELL CLEAN TURBULATOR IRTY FLAME TURBULATOR 0LUGGED NOZZLE OR PRE HEATER LEAN NOZZLE AND OR PRE HEATER ASSEMBLY ASSEMBLY ...

Page 42: ...s warranty to be valid MANUFACTURER S determination regarding repair or replacement is final Cost of freight is owner s responsibility Model Number MXB 250 400 Series Boiler Date Purchased NY PORTION OF THE COMBUSTION CHAMBER HEAT EXCHANGER IF 4HE UNIT IS NOT INSTALLED PER THE OWNERS MANUAL 4HE YEARLY INSPECTION REQUIREMENTS ARE NOT CURRENT F THE BOILER IS USED FOR A PURPOSE FOR WHICH IT IS NOT IN...

Page 43: ...l Reset Snap Disk Fuel Supply Pre Heater Adjustment Screw To Combustion Blower Pre Heater Switch Air Supply Air Supply Air Solenoid Ignitor Oil Pre Heater Block Air Pre Heater Block To Oil Primary To F Terminals To Transformer Cover Burner Cover View Port Cad Cell Electrical Quick Disconnect ...

Page 44: ... ANAIR 7ASTE IL EATERS OILERS APITAL IRCLE ANESVILLE 7ISCONSIN WWW LANAIR COM 2004 Martrade LLC Lanair is a registered trademark of Martrade LLC P N 5051 ...

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Lanair MXB-250, Installation And Operating Instructions Manual

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