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Summary of Contents for Lanair MXB-250
- Page 1 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...
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Page 2: Code Requirements
9. Check to make sure you have all the required components needed for proper installation and operation. 10. Check each component for visible damage. If you find a damaged component, contact a Lanair Service Representative for a replacement. Do not install broken or damaged parts. -
Page 3: Table Of Contents
Burner Reference Diagram ............. . page 43 Visit our website at: www.lanair.com... -
Page 4: Sec
Section 1 - Burner Specifications Burner Assembly-Performance Ratings Description Voltage ....... . 115 vac Mounting Plate Ignitor Transformer Cycles . -
Page 5: Sec
Pump Motor ......5 amps Pressure Gauge port Easy Flow Bleed Valve 1/4" NPT Inlet 1/8" NPT Outlet Adapter Shaft Visit our website at: www.lanair.com... - Page 6 1-888-370-6531...
- Page 7 2-1/2” MPT Supply 2-1/2” FPT Return Dimension Dimension Dimension 4" oc 36" 36" 3/4" 9-3/8" 33" 33" 20" oc 73-3/8" 63-3/8" 7-3/4" oc 12" 12" 18" oc 42" 52" 5" oc 8" 8" 29-1/2" oc Visit our website at: www.lanair.com...
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Page 11: Sec
45 minutes. If the reading is not what it should be, adjust the barometric damper according to the instructions provided with the damper. The draft reading should be taken with a manometer. Consult your heating con- tractor, or manometers can be purchased from the Lanair Customer Service Department 800-753-1601. Visit our website at: www.lanair.com... - Page 12 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 Vent (see page 14) 1“ x 1/2” bushing P/N 8904 PUMP ASSEMBLY Fill 1/4” Nipple P/N 8647 1“...
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Page 13: Fuel Supply Pump/Piping
The fuel pump contains an internal strainer that periodically needs to be cleaned (see Section 18, page 33). This internal strainer is mounted behind the pump cover. Before removing the pump cover make sure you have a new gasket on hand. Contact the Lanair Customer Service Department for the proper gasket for your model of pump, at 800-753-1601. - Page 14 Section 7 - Fuel Supply Pump/ Piping NOTE: This item comes pre-assembled from the factory. 3/8” x 1/4’” NPT FUEL LINE P/N 8939 TO BURNER P/N 8909 Fuel Regulator P/N 8460 Fuel Relief Valve P/N 8462 Close Nipple P/N 8647 Bushing P/N 8908 3/8”...
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Page 16: Boiler Installation
Boiler block with insert installed Box of jacket parts Box marked #3 (Burner Assembly) a) Complete Lanair MXB Burner assembly b) Secondary Air Filter/Regulator Box marked #4 (Accessories Box) a) Oil filter, oil pressure gauge, oil supply line relief valve, and regulator assembly, plumbing kit and Instruction Manual/Warranty Card Packet 2. - Page 18 Section 9 - Boiler Installation Figure 9 ATTENTION: DO NOT INSTALL THE BOILER JACKET WITHOUT FIRST ATTACHING THE SUPPLY MANIFOLD AND DIFFUSER (SEE PAGE 17). PARTS LIST 041 UPPER FRONT TRIM PANEL 018 HINGE BRACKET (factory mounted to boiler) 030 ADDITIONAL INSULATION 043 SETSCREW AF-17 AND SPACER (4 required) 033 CENTER PANEL 060 REAR INSULATING MAT (2 PIECES)
- Page 19 Place top panel between side panels and slide forward to lock in position. Sight Glass Installation Remove the sight glass plug on the door of the unit. Figure 10 Install sight glass assembly. Hand tighten (Fig. 10). Visit our website at: www.lanair.com...
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Page 22: Electrical Connections/Wiring Diagram
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. -
Page 24: Compressed Air Installation
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. -
Page 25: Controls
The Fuel Supply Pump pumps fuel from your oil storage tank to the burner. The Fuel Supply Pump should be locat- ed as close to the fuel supply tank as possible. The Fuel Supply Pump must be mounted horizontally (Shaft). See page 12, Fig. 4. Visit our website at: www.lanair.com... - Page 26 1-888-370-6531...
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- Page 30 • Flame extends 3/4 into the chamber. • Flame is not impinging on the chamber walls. Figure 22 GOOD FLAME If you need assistance with flame adjustment, please call Lanair's The flame length is approximately 3/4 of Parts and Service Department. the chamber DO NOT OVER FIRE YOUR BOILER.
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- Page 33 3. Clean housing, strainer and pump surface. Check strainer for excess wear. 4. Install a new gasket (P/N 9817). 5. Install strainer and pump housing. gasket 6. Prime the fuel pump (see page 28). hex cap screws Visit our website at: www.lanair.com...
- Page 35 • Replace diaphragm, o-ring and spring (see page 39) Re-attach diaphragm assembly and hand tighten. NOTE: Do not over tighten. 12. Replace Ignitor Assembly (see page 39) 13. Service Oil Pre-Heater (see pages 36-37 for Annual Maintenance Instructions) Visit our website at: www.lanair.com...
- Page 36 Section 18 - Service / Maintenance Annual Maintenance - Oil Pre-Heater Oil Pre-Heater Tune -Up Kit (PN# 9869) Required. Ref. Part Qty. Description 8992 cartridge heater 9813 pre-heater face plate 9869 hex cap screw * 9869 o-ring 13/16" OD * 2901 oil block 9029...
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Page 37: Start Up Procedure
• Reconnect the air line by connecting the one end of the air line to the air solenoid and the other end to the air fitting (see page 34). 9. Test Operation • Follow start-up procedure, page 26. Visit our website at: www.lanair.com... - Page 38 Section 18 - Service / Maintenance Ignitor Replacement / Adjustment electrodes should extend approximately 1. Disconnect power to the boiler. 1/8” beyond nozzle tip 2. Remove the pre-heater assembly from the burner housing. Disassemble and clean all parts as instructed on pages 3/8”...
- Page 39 6. Lubricate pin/seat and re-install nozzle. Tighten securely. Failure to properly seat the quad ring may result in leak- age and improper burner operation. DO NOT INSTALL Proper Quad Ring Position QUAD RING ON THE NOZZLE. Visit our website at: www.lanair.com...
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Page 40: Flame Adjustment
Section 19 - Troubleshooting Symptom Possible Cause Corrective Action A. Burner will not start 1. Main electrical power 1. Reset breaker circuit breaker tripped 2. Service disconnect 2. Turn switch on or switch off or fuse blown replace fuse 3. Thermostat turned down/ 3. -
Page 42: Limited Warranty
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. - Page 43 Ignitor Manual Reset & Snap Air Supply Disk Solenoid To Combustion Blower Fuel Supply Pre-Heater Block Pre-Heater Adjustment Screw Supply Electrical Quick Pre-Heater Block Disconnect Oil Pressure Gauge Pre-Heater Switch View Port To Transformer To “F” Terminals To Oil Primary Cad Cell Cover Burner Cover...
- Page 44 © 2004 Martrade LLC Lanair is a registered trademark of Martrade LLC P/N 5051...
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