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.
® BEFORE YOU BEGIN INSTALLATION... Read and understand this manual completely before beginning installation. Code Requirements Installation must comply with all state, local and utility codes, laws, regulations and ordinances and CSA standard B139. When required, installations must conform to A.S.M.E. safety code for controls and safety devices for automatically fired boilers No. CSD-1.
MXB 250/400 250,000/400,000 BTU BOILER Installation and Operating Instructions Table of Contents: Code Requirements and Rules For Safe Installation and Operation . . . . . . . . . . . . . . . . page 2 Sec. 1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4 Sec. 2 Typical Boiler Room Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1 - Burner Specifications 2 1 3 6 7 4 5 8 9 10 11 No. 1 2 3 4 5 6 7 8 9 10 11 4 Description Mounting Plate Ignitor Transformer Fuel Line Inlet Fuel Pressure Gauge Combustion Air Baffle View Port Oil Primary Safety Control Waste Oil/Fuel Oil Switch Quick Disconnect Receptacle Air Supply Inlet Combustion Blower Motor Burner Assembly-Performance Ratings Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 vac Cycles . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1 - Pump Specifications 2 3 OPTIONAL J-PUMP 8 5 9 4 7 6 1 No. 1 2 3 4 5 6 7 8 9 Description Pump Platform Pump Motor Adapter Shaft Cover Pump Pressure Gauge port Easy Flow Bleed Valve 1/4" NPT Inlet 1/8" NPT Outlet Adapter Shaft Pump Assembly-Performance Ratings Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 vac Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 hz Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3ECTION "OILER 3PECIFICATIONS $%4!), ! 3UPPLY 2ELIEF 6ALVE -8 "/),%2 3UPPLY -ANIFOLD SEE $ETAIL ! %LECTRICAL *UNCTION "OX &LOW 3WITCH NOT INCLUDED 2ETURN .
Section 1 - Boiler Specifications TOP 10 11 REAR 12 Clean-Out Port Clean-Out Port 14 13 SIDE FRONT 9 8 2-1/2” MPT Supply 1 7 2-1/2” FPT Return 4 2 5 6 3 No. 1 2 3 4 5 6 Dimension 400 250 36" 36" 33" 33" 73-3/8" 63-3/8" 12" 12" 42" 52" 8" 8" No. 7 8 9 10 11 12 Dimension 3/4" 9-3/8" 7-3/4" oc 18" oc 5" oc 29-1/2" oc No. 13 14 Dimension 4" oc 20" oc Visit our website at: www.lanair.
3ECTION 4YPICAL "OILER 2OOM ,AYOUT v v v -IN "OILER 6ENT #ONNECTIONS v "OILER 3UPPLY #ONNECTION h h #, #, v -8" v v MIN v -8" v v v #, $IMENSION AS PER JOB SPECIFICATIONS AND LOCAL CODES &IGURE 3ECTION "OILER 2OOM !IR 2EQUIREMENTS ! 7!2.).
3ECTION "OILER 2OOM !IR 2EQUIREMENTS &IGURE -AXIMUM ,OUVERED OPENINGS FOR VENTILATION COMBUSTION -AXIMUM 7HEN AIR COMES DIRECTLY FROM OUTDOORS AGAIN USE TWO OPENINGS AS EXPLAINED ON PAGE AND ABOVE EXCEPT s !LL DUCTING SHALL BE THE SAME SIZE AS OPENING BUT NO LESS THAN X OR SQUARE INCHES 2EMEMBER TO COMPENSATE FOR LOUVER BLOCKAGE WHEN CALCULATING FREE AIR 2EFER TO MANUFACTURERgS INSTRUCTIONS OR USE THIS GENERAL GUIDE 7//$ ,/56%23 !LLOW FREE AIR -%4!, ,/56%23 /2 '2),,%3
3ECTION #HIMNEY OR 6ENT 3YSTEM ! &AILURE TO PROVIDE PROPER VENTING OF THE BOILER EXHAUST GASES COULD RESULT IN DEATH SERIOUS INJURY AND OR PROPERTY DAMAGE &/,,/7 #()-.%9 -!.5&!#452%23 ).3425#4)/.3 #LASS ! #HIMNEY #AP g TALLER THAN ANY OBJECTS WITHIN g #LASS ! #HIMNEY ./4% #LASS ! COMPONENTS REQUIRE A CLEARANCE FROM COM BUSTIBLE MATERIALS !LL OTHER CHIMNEY COMPONENTS REQUIRE A MINIMUM CLEARANCE FROM COMBUSTIBLE MATERIALS (/2):/.
Section 4 - Chimney or Vent System 8. Do not use more than one 90° elbow. Each 90° elbow equals a 10’ run of chimney. The maximum run for the chimney connector is 30’. 9. Secure all connections in the chimney connector with 3 screws per joint. 10. The chimney connector clearance to any combustible material is 18”. The Class "A” chimney clearance to any combustible is 2”. FOLLOW THE CHIMNEY MANUFACTURER’S INSTRUCTIONS. 11.
Section 6 - Fuel Supply Tank Installation Figure 4 3/8” Fuel Line To Burner (not included) 3/8” Copper Tube P/N 9182 Fuel Regulator Assembly (see page 14) Vent 1“ x 1/2” bushing P/N 8904 PUMP ASSEMBLY 1/4” Nipple P/N 8647 1/4” x 1/2” Coupling P/N 8558 1“ x 1/2” bushing P/N 8904 Fill STORAGE TANK TOP VIEW Vacuum Gauge P/N 8398 1/2” x 1/4” x 1/4” Tee P/N 9412 3/8” Fuel Line To Burner (not included) PUMP ASSEMBLY Primary Strainer P/N 9807 STORAGE TANK 1/2” pick-up tube (not included) Check Valve
Section 7 - Fuel Supply Pump/ Piping General Requirements - Fuel Tank 1. The fuel supply tank and supply lines must be installed in accordance with the National Fire Protection Association requirements, as well as state and local ordinances. 2. Regulations require oil storage tanks located inside a building not exceed 275 gallons individually and are not to exceed 550 gallons in one building. Check state and local codes. 3.
Section 7 - Fuel Supply Pump/ Piping NOTE: This item comes pre-assembled from the factory. FUEL LINE TO BURNER 3/8” x 1/4’” NPT P/N 8939 Tee P/N 8909 Fuel Regulator P/N 8460 Fuel Relief Valve P/N 8462 Close Nipple P/N 8647 Bushing P/N 8908 RETURN LINE TO TANK 3/8” x 1/4’” NPT P/N 8939 Nipple P/N 8915 Figure 5 10. Install the check valve (arrow facing towards the pump) on the bottom of the pick up tube. 11. Install a vacuum gauge (included, P/N 8398) in the suction line.
3ECTION 4YPICAL "OILER 0IPING &IGURE 3INGLE "OILER 0IPING WITH "LEND 0UMP ! !44%.4)/.
Section 9 - Boiler Installation ! All MX Series boilers are shipped with the boiler sections assembled and hydrostatically tested to A.S.M.E. at the factory. Inspect boiler for any visible damage before beginning installation. Inspect Shipment Any claims for damage or shortage must be filed against carrier or consignee. No claims for variances from, or shortages in orders, will be considered unless presented 7 days after receipt of goods. Boiler shipment comes in two separate pallets. 1.
3ECTION "OILER )NSTALLATION ! .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 &IGURE MM X MM STUDS 'ASKET MM WASHERS 4/0 /& "/),%2 MM NUT 3UPPLY -ANIFOLD -ANIFOLD AND $IFFUSER )NSTALLATION !TTACH SUPPLY MANIFOLD AS INDICATED IN &IG )NSTALL RETURN PORT DIFFUSER AND ATTACH RETURN FLANGE AS SHOWN IN &IG .
Section 9 - Boiler Installation Figure 9 086 038 036 094 033 060 030 040 018 043 018 093 041 ! ATTENTION: DO NOT INSTALL THE BOILER JACKET WITHOUT FIRST ATTACHING THE SUPPLY MANIFOLD AND DIFFUSER (SEE PAGE 17).
Section 9 - Boiler Installation Boiler Jacket Installation 1. Screw the four (4) jacket extensions (043) into the the four outer holes in the corners of the rear boiler section. Securely tighten the jacket extensions. Check other bolts on the rear panel and tighten if necessary. 2. Place the large wrap-around insulation blanket (040) over the boiler block. NOTE: The aluminum foil side of the blanket should be facing out. 3. Place smaller piece of insulation (030) on top of the insulation blanket.
3ECTION "OILER #ONTROLS AND !CCESSORY ,OCATION &IGURE PRESSURE RELIEF VALVE -8 "/),%2 !QUASTAT %LECTRICAL *UNCTION "OX "URNER 3ERVICE 3WITCH ! ).34!,,!4)/. -534 "% $/.% "9 ! ,)#%.3%$ (6!# (9$2/.)# #/.42!#4/2 &!-),)!2 7)4( !,, 34!4% !.
3ECTION "OILER #ONTROLS AND !CCESSORY ,OCATION ! $ISCHARGE PIPING FROM PRESSURE RELIEF VALVE MUST BE PIPED TO A DRAIN OR MUST TERMINATE ABOVE FLOOR TO AVOID DAMAGE TO THE STRUCTURE OR PERSONAL INJURY )T MUST .
Section 12 - Electrical Connections ! CAUTION: HAZARD OF ELECTRICAL SHOCK! Main Electrical Installation 1. All wiring must comply with the National Electrical Code. State and Local Ordinances, and be wired by a qualified electrician. 2. Electrical service MUST be connected to a separate 20 AMP, 115 VAC, 60 HZ single phase circuit. 3. Electrical service connections are made in the electrical junction box on side of the boiler. 4.
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Section 13 - Compressed Air Installation Compressed Air Supply Installation 1. Install an air pressure supply line connection to the air filter/regulator. 2. The air supply source must be capable of producing 1.0 CFM @ 100 PSI. 3. Install a shut off valve in the air supply line for service. 4. Install a primary air filter/regulator with a gauge (capable of reading line pressure) in the air supply line prior to the air filter/regulator mounted on the furnace.
Section 14 - Controls Burner Controls and Operation • Oil Primary Safety Control/Cad Cell: The oil primary control is mounted on top of the burner’s electrical box. When the thermostat calls for heat the oil primary control starts the burner by switching on the air solenoid valve, ignition transformer, combustion air blower, and the fuel pump. The oil primary control works in conjunction with the cadmium sulfide cell (cad cell). The cad cell is mounted inside the burner cover, and faces the flame.
3ECTION #ONTROLS &UEL 0UMP #ONTROLS AND /PERATION s &UEL 2EGULATOR ! &UEL REGULATOR IS USED TO ADJUST THE FUEL PRESSURE OF WASTE OIL TO THE BURNER s &UEL 2ELIEF 6ALVE 4HE FUEL RELIEF VALVE PREVENTS EXCESS PRESSURE BUILD UP IN THE FUEL LINE UPON BURNER SHUT DOWN "OILER #ONTROLS AND /PERATION s (I ,IMIT 3WITCH (I LIMIT SWITCHES ARE IMMERSION TYPE DEVICES FOR REGULATING THE TEMPERATURE OF LIQUIDS IN A BOILER WHERE TEMPERATURE CONTROL IS REQUIRED 4HE (I LIMIT SWITCH IS MOUNTED TO THE SUPPLY MANIFOLD A
3ECTION 3TART 5P 0ROCEDURES 7ASTE /IL "URNER 3TART 5P -AKE SURE THE MAIN ELECTRICAL SERVICE FOR THE HEATER IS TURNED OFF AND LOCKED OUT &ILL THE OIL SUPPLY TANK WITH AN APPROVED FUEL TO A LEVEL THAT IS ABOVE THE PICK UP TUBE CHECK VALVE #HECK FOR PROPER DRAFT IN THE CHIMNEY 4HE DRAFT MUST READ 7 # COLD -AKE SURE THERE IS AIR PRESSURE AT THE HEATERS AIR FILTER REGULATOR SET IT AT 03) 3ET THE PRIMARY REGULATOR ON THE AIR SUPPLY LINE TO 03) 3ET THE FAN LIMIT CONTROL SLIDE SWI
3ECTION 0RIMING THE &UEL 0UMP 4HE FUEL LEVEL IN THE SUPPLY TANK MUST BE ABOVE THE CHECK VALVE ON THE PICK UP TUBE &ILL SUCTION LINE WITH OIL &IGURE 2EMOVE THE BOWL OF THE SUCTION LINE STRAINER AND FILL WITH CLEAN FUEL 2EPLACE THE STRAINER BOWL 2EMOVE THE TWO YELLOW WIRES FROM THE & & TERMINAL ON THE OIL PRI MARY CONTROL &IG )NSTALL A JUMPER WIRE BETWEEN THE & & TERMI NALS &IG !DJUST THE AIR FILTER REGULATOR ON THE HEATER TO n 03) 2EMOVE THE FUEL SUPPLY LINE FROM TH
3ECTION &LAME !DJUSTMENT &LAME !DJUSTMENT 3TART BOILER LET IT RUN FOR AT LEAST MINUTES TO REACH OPERATING TEMPERATURE BEFORE PROCEEDING #HECK CHIMNEY DRAFT SET THE BAROMETRIC DAMPER TO 7# WHEN HOT AND RUNNING #HECK THE ATOMIZING AIR PRESSURE SET THE AIR FILTER REGULATOR ON THE HEATER TO 03) AS A STARTING POINT #HECK THE FUEL PRESSURE GAUGE ON THE BURNER SET TO -8" ,BS -8" ,BS !DJUST THE SCREW ON THE FUEL REGULATOR ,OCK INTO POSITION 4HE FLAME SHOUL
Section 17 - Flame Adjustment Flame Adjustment - Visual Flame is over-fired (Fig. 20). • Dark yellow, to orange in color. • The flame is hitting the walls, filling the chamber with a smokey flame. Correct immediately or chamber may be damaged. • Decrease fuel pressure, and adjust combustion air baffle. Air pressure may also need to be adjusted. Problem: Too large of a flame, dark yellow in color. 1. Too much fuel pressure. 2. Not enough combustion air. 3. Not enough atomizing air pressure. 4.
3ECTION 3ERVICE -AINTENANCE -8 3%2)%3 "/),%2 3%26)#% -!).4%.!.#% 3#(%$5,% $!),9 7%%+,9 -/.4(,9 !..
3ECTION 3ERVICE -AINTENANCE ! ! ./4% !,7!93 7%!2 %9% &!#% !.$ "2%!4().' 02/4%#4)/. !.$ 02/4%#4)6% #,/4( ).' 7(%. ).30%#4).' /2 #,%!.).' #(!-"%2 7!2.).' $)3#/..%#4 !,, %,%#42)#!, 0/7%2 4/ "/),%2 "%&/2% 3%26)#).
Section 18 - Service / Maintenance Cleaning Suction Line Strainer bolt The suction line strainer should be cleaned every 30 days of operation. The element is a washable metal element. If your waste oil is extremely dirty, this strainer may need to be cleaned more frequently. Your vacuum gauge will help you determine when the filter needs cleaning. The vacuum gauge reading should not exceed 5" HG of vacuum. If it does, the strainer needs cleaning. washer o-ring outlet 1” NPT 1.
2EF .O 0ART .
Section 18 - Service / Maintenance 1. Remove Pre-Heater Assembly • Disconnect the air line from the brass fitting on the air pre-heater and then from the air solenoid and remove. • Disconnect wiring from the oil pre-heater cartridge, air pre-heater cartridge and snap disc assembly in the wiring junction box. • Disconnect fuel line and fitting (6) from the oil block (5). • Disconnect fuel pressure gauge (8) and fitting from the oil block (5). • Remove button hex screw (14) and washer (11).
Section 18 - Service / Maintenance Annual Maintenance - Oil Pre-Heater Oil Pre-Heater Tune -Up Kit (PN# 9869) Required. 13 12 12 10 12 5 9 4 7 11 6 14 7 6 1 2 8 3 Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Part No. 8992 9813 9869 9869 2901 9029 9869 8499 7242 9869 7418 7109 9366 7242 Qty.
Section 18 - Service / Maintenance 1. Separate Air Pre-Heater from Oil Pre-Heater • Remove o-ring and discard(10). 2. Disassemble Oil Pre-Heater • Remove o-ring and discard(10). • Remove six hex cap screws (3) from face plate (2) and discard. • Remove oil cartridge heater (1). • Remove four 13/16"OD o-rings and discard(4). • Remove three plugs (12) from oil block (5) • Remove hex cap screw (9) from inside oil pre-heater block and clean. NOTE: Do not discard (5). 3.
Section 18 - Service / Maintenance Ignitor Replacement / Adjustment electrodes should extend approximately 1/8” beyond nozzle tip 1. Disconnect power to the boiler. 2. Remove the pre-heater assembly from the burner housing. Disassemble and clean all parts as instructed on pages 34-37. 3/8” 3. Using a 7/16" wrench, carefully remove the one-piece ignitor from the air preheater. 1/16” Side View 4. Install a new one piece ignitor (P/N 3730) to the top of the air preheater.
Section 18 - Service / Maintenance Air Pre-Heater Diaphragm Replacement o-ring diaphragm 1. Remove the four hex cap screws from the diaphragm assembly and discard. piston 2. Disassemble and discard diaphragm, spring and o-ring . hex cap screws 3. Thoroughly clean remaining parts. spring 4. Re-assemble using new diaphragm, o-ring, spring and hex cap screws. Air Pre-Heater Nozzle Cleaning / Replacement 1. Periodic cleaning of the nozzle assembly may be required. 2.
Section 19 - Troubleshooting Symptom Possible Cause Corrective Action A. Burner will not start 1. Main electrical power circuit breaker tripped 1. Reset breaker 2. Service disconnect switch off or fuse blown 2. Turn switch on or replace fuse 3. Thermostat turned down/ improperly installed/ defective 3. Turn thermostat up, check wires/test components/replace 4. Oil primary safety tripped/defective 4. Reset/test components, replace if needed 5. Too much light showing on cad cell/defective 5.
3ECTION 4ROUBLE 3HOOTING 3YMPTOM 0OSSIBLE #AUSE #ORRECTIVE !CTION # "URNER FIRES AND THEN FAILS ON OIL PRIMARY SAFETY #ONTAMINATED FUEL SUPPLY WATER ANTI FREEZE GEAR LUBE OR DIRTY FUEL FILTER $RAIN AND CLEAN FUEL SUPPLY TANK #LEAN FUEL FILTER SEE PAGE )MPROPER DRAFT #HECK DRAFT SEE PAGE -AKE SURE CHIMNEY IS PROPERLY INSTALLED 0LUGGED HEAT EXCHANGER MANIFOLD OR CHIMNEY #LEAN HEATER INCLUDING MANIFOLD AND CHIMNEY 7RONG AIR PRESSURE 3EE FLAME ADJUSTMENT PAGES
3ECTION 7ARRANTY LANAIR 1O YEAR WASTE OIL BOILER LIMITED WARRANTY Lenan Corp., MANUFACTURER, hereby warrants that manufacturer’s products shall be free from defect in material and workmanship under normal use according to the provisions and limitations herein set forth for a period of one (1) year provided same is returned (pre-paid) F.O.B. Janesville, Wisconsin for inspection and warranty determination.
3ECTION "URNER 2EFERENCE $IAGRAM Ignitor Manual Reset & Snap Disk Fuel Supply Oil Pre-Heater Block Air Solenoid To Combustion Blower Air Supply Pre-Heater Adjustment Screw Air Supply Air Pre-Heater Block Electrical Quick Disconnect Oil Pressure Gauge Pre-Heater Switch View Port To Transformer To “F” Terminals To Oil Primary Cad Cell Cover Burner Cover 6ISIT OUR WEBSITE AT WWW LANAIR COM
¸ ,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
