Lanair MXB360 User Manual
MXB-360
®
360,000 BTU BOILER
Installation and Operating Instructions
Lanair Waste Oil Heaters & Boilers
4109 Capital Circle
Janesville,Wisconsin 53546
608-752-1601
www.lanair.com
®
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.
All electrical wiring must be done by a licensed electrician in accordance with the National Electrical codes latest
edition and all state and local codes.
Rules for Safe Installation and Operation
1. This boiler is for commercial and industrial use only. This unit is not intended for residential use.
2. This boiler must be installed by a licensed HVAC/Hydronic contractor.Installer should be trained and thoroughly
familiar with the installation and operation of oil-fired boilers.
3. Read this owner's manual and the rules for safe operation carefully. Failure to follow the rules of safe operation
and the instructions could cause a malfunction of the boiler and result in death, serious bodily injury, and/or
property damage.
4. Locate the boiler as close to the chimney as practical. Observe the minimum clearances outlined in Fig. 1,
page 8. Remember to allow room for the boiler door to open with the burner mounted.
5. Make sure that the surface on which the boiler is to be installed is capable of supporting the weight of the boiler,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 chosen for the boiler will provide adequate air for combustion and ventilation (see Fig.2,
page 9). Also make sure that fuel and electrical requirements can be satisfied at the boiler location chosen.
8. The heating system design shall not permit the boiler's return water temperature to be lower than 130˚F for a
significant period of time.This will prevent fire side corrosion and insure a long life expectancy for your boiler.
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.
11. This boiler is designed to provide economically and environmentally friendly disposal of waste oil.Due to the
nature of the fuel used, this boiler should not be relied upon as the sole source of heat.
12. Read and understand the warranty.Fill out the enclosed warranty card and return within 10 days of purchase.
2
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
MXB 360
360,000 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
Sec. 3 Boiler Room Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
Sec. 4 Chimney/Vent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
Sec. 5 Draft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11
Sec. 6 Fuel Supply Tank Piping Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 12
Sec. 7 Fuel Supply Pump/Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13
Sec. 8 Typical Boiler Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15
Sec. 9 Boiler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16
Sec. 10 Boiler Controls and Accessory Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20
Sec. 11 Burner Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21
Sec. 12 Electrical Connections/Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22
Sec.13 Compressed Air Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24
Sec.14 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25
Sec.15 Start Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 26
Sec.16 Priming Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 28
Sec.17 Flame Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29
Sec.18 Maintenance Schedule / Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31
Sec.19 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40
Sec.20 Warranty Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 42
Sec.21 Burner Reference Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 43
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Section 1 - Burner Specifications
10
11
2
1
3
4
5
No. Description
1 Mounting Plate
2 Ignitor Transformer
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
6
7
8
9
10
11
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
4
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
OPTIONAL J-PUMP
Section 1 - Pump Specifications
2
3
8
5
4
7
No. Description
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
9
6
1
Pump Assembly-Performance Ratings
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 vac
Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 hz
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 lbs
Pump Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 amps
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5
Section 1 - Boiler Specifications
8
DETAIL A
9
12
11
10
MX BOILER
2
1
No. Description
1 Burner Assembly
2 View Port
3 Electrical Junction Box
4 HI-Limit Switch
5 Relief Valve
6 Chimney Outlet
7 Flow Switch (not included)
8 Supply Manifold
9 Hi-Limit Switch
10 Temperature/Pressure Gauge
11 Low Water Cut-off Switch
12 Optional Relief Valve Location
3
Electrical Junction Box
Supply
Relief Valve
5
Supply Manifold
(see Detail A)
4
6
Flow Switch (not included)
Return
7
Boiler-Performance Ratings
Burner Fuel Consumption . . . . . . . . . . . . . 2.57 GPH
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360,000 BTU
Output Capacity . . . . . . . . . . . . . . . . . . . 297,000 BTU
Net Rating - Water BTU/HR . . . . . . . . . . . . . 309,600
Approx. Dry Weight . . . . . . . . . . . . . . . . . . . 1,900 lbs.
Vent Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8" dia.
Water Content . . . . . . . . . . . . . . . . . . . . . . . . 28.5 gal.
Max Operating Water Pressure . . . . . . . . . . . 75 PSI
6
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
Section 1 - Boiler Specifications
TOP
FRONT
10
11
12
SIDE
13
REAR
Clean-Out
Port
Clean-Out
Port
14
9
8
1
2
No. Dimension
1 36"
2 33"
3 73-3/8"
4 12"
5 52"
68"
No. Dimension
73/4"
8 9-3/8"
9 7-3/4" oc
10 18" oc
11 5" oc
12 29-1/2" oc
2-1/2” MPT Supply
7
2-1/2” FPT Return
54 6
3
No. Dimension
13 4" oc
14 20" oc
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7
Section 2 - Typical Boiler Room Layout
16.5”
8”
CL
2-1/2” Boiler
Supply Connection
33”
16.5” min.
8”
Boiler Vent
Connections
2“
8“
CLCL
47.5”
16.5”
CL
Dimension as per job specifications and local codes
Figure 1
Section 3 - Boiler Room Air Requirements
WARNING: Failure to provide an adequate supply of fresh air for combustion will result
in hazardous operating conditions.Do not use an exhaust fan in the boiler room.
!
1. To ensure safe efficient operation, the boiler system must be supplied with sufficient air for combustion and ventilation (see Fig.2)
2. Unless properly controlled, avoid the use of forced ventilation, since it can create an undesirable pressure differential between the boiler room and air source.
3. All boilers located in confined rooms should have free access to ventilation and combustion air from two permanent openings. One opening should terminate within 12" of the ceiling, the other within 12" from the floor
(see Fig.2). Each opening shall have at least 1 sq. inch free area per 1,000 BTU/HR of burner input. Openings should
freely connect with areas having adequate infiltration of outside air
8
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
Section 3 - Boiler Room Air Requirements
Figure 2
12" Maximum
Louvered
openings for
ventilation &
combustion
12" Maximum
When air comes directly from outdoors, again use two openings as explained on page 8 and above except:
• Direct connection or vertical ducting allow 1 sq. inch per 4,000 BTU/HR.
• Direct connection through horizontal ducting allow 1 sq. inch per 2,000 BTU/HR
• All ducting shall be the same size as opening but no less than 3" x 3" or 9 square inches.
Remember to compensate for louver blockage when calculating free air. Refer to manufacturer's instructions or use this
general guide:
WOOD LOUVERS- Allow 20-25% free air
METAL LOUVERS OR GRILLES - Allow 60-70% free air
Any louver damper should lock open or interlock with the burner to open automatically when the boiler operates.
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9
Section 4 - Chimney or Vent System
Failure to provide proper venting of the boiler
exhaust gases could result in death, serious
injury, and/or property damage. FOLLOW
!
CHIMNEY MANUFACTURERS INSTRUCTIONS.
HORIZONTAL
VERTICAL
NOTE: Barometric
Damper may be mounted horizontally or vertically. Angle gate pins
must be horizontal for
proper operation
NOTE: Class "A" components require a 2" clearance from combustible materials. All other chimney components require a
minimum 18" clearance from combustible materials
Figure 3
Class "A" Chimney Cap
8" Class "A" Chimney
Barometric Damper
(24"-36" from boiler)
NOTE: Chimney
adapter is included.
P/N 4799
3' taller than any
objects within 10'
15' Typical
Capped
Clean-out
Tee
NOTE: Horizontal pipe
must have a 1/4" rise
per foot of length
General Requirements
1. Chimney MUST be a 8” Class "A" chimney. Do Not Use chimney smaller than 8”.
2. INSTALLATION MUST BE DONE BY A LICENSED HVAC/HYDRONIC CONTRACTOR FAMILIAR WITH ALL STATE
AND LOCAL CODES.Safe operation of any gravity vented heating appliance requires a proper air make-up system
to prevent the heater exhaust gases from being drawn into the building. These gases could cause death, serious
injury, and/or property damage. Exhaust fans, paint booths may cause draft problems.
3. Never vent this boiler into another heating appliances chimney. Never vent into ‘Class B” chimney. Gas boilers use
“Class B” chimney,it is rated for a much lower temperature than is required for your waste oil boiler. This
boiler must have its own separate “Class A”chimney.
4. Inspect and maintain the chimney on an annual basis.
5. Install a U.L. listed barometric damper in the chimney. Do not reduce or enlarge the vent pipe.
6. Position the draft control as shown. Chimney angle gate pins must be horizontal for proper operation.
7. Keep the barometric draft control at least 24” from the boiler.
10
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
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 com-
bustible is 2”. FOLLOW THE CHIMNEY MANUFACTURER’S INSTRUCTIONS.
11. Do not install heat re-claimers, manual draft controls, or any other type of restrictive control in the chimney.
12. Install a 8” diameter clean out tee with a cap, at the transition of the chimney.
FOLLOW CHIMNEY MANUFACTURER’S INSTRUCTIONS.
13. Use a 8” inside diameter “Class A”insulated chimney pipe to vent exhaust gases through wall, ceilings, attics,roofs,
combustibles, etc..
14. Vent chimney at least 3 feet above the roof and at least 3 feet higher than any portion of the building, roof, or
obstruction within 10 feet of the chimney.
15. The chimney cap should be at least 3’ above the roof exit.
16. Do not use a rotating chimney cap. Use a non-restrictive “Class A”cap made for the type of “Class A” chimney you are
using. FOLLOW CHIMNEY MANUFACTURER’S INSTRUCTIONS.
17. The chimney must 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. The boiler and chimney must be installed in accordance with all state and local codes. The boiler must be
installed by a licensed HVAC/Hydronics contractor in accordance with the specifications listed in this manual.
The chimney must be installed per the chimney manufacturers instruction. Use “Class A”chimney only.
WARNING: FOLLOW THE CHIMNEY MANUFACTURER’S INSTALLATION INSTRUCTIONS AS
WELL AS STATE AND LOCAL FIRE CODES.
!
Section 5 - Draft
The boiler should have a (negative) -.02 draft reading when cold, and a (negative) -.06 when hot.Check the boiler when it
is running after 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 contractor,or manometers can be purchased from the Lanair Customer Service Department 800-753-1601.
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11
Figure 4
3/8” Copper
Tube P/N 9182
Section 6 - Fuel Supply Tank Installation
3/8” Fuel Line To Burner (not included)
Vacuum Gauge P/N 8398
1/2” x 1/4” x 1/4” Tee
P/N 9412
Primary Strainer
P/N 9807
1“ x 1/2” bushing
P/N 8904
TOP VIEW
1“ x 1/2” bushing
P/N 8904
Fuel Regulator Assembly
(see page 14)
1/4” Nipple P/N 8647
1/4” x 1/2” Coupling P/N 8558
ASSEMBLY
PUMP
ASSEMBLY
PUMP
Vent
Fill
STORAGE
TAN K
3/8” Fuel Line To Burner (not included)
12
STORAGE
TAN K
1/2” pick-up tube
(not included)
Check Valve P/N 8662
(inside tank)
Strainer Suction Line P/N 8748
6“ from bottom of tank
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:30 pm CST
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. Oil storage tank must be inside the building as close to the boiler as possible (max. 25 feet) to avoid flow problems.
4. Pitch the fuel supply 2º with the drain valve at the lowest end to drain off water and sludge. Sludge may have to
manually be removed.
5. Some ordinances may require the fuel supply tank to be vented to outside,and above the roofline.Check State and
Local codes. Keep the vent clear.
6. Install the fuel tank fill pipe at the end of the tank and above the drain.
7. Label the fuel tank for the recommended fuels.
8. Strain all fuel with a 50 X 50 mesh strainer before putting fuel into the tank.
9. When filling the fuel tank with a motorized pump, never leave unattended to prevent over filling and/or spillage.
10. Keep fill cap on the fuel tank when not filling.
General 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 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.
5. Install the suction supply line from the inlet side of the fuel pump into the fuel tank opposite the drain.
6. Install a 1/2” inside diameter (.493) steel pipe, or 1/2” outside diameter copper throughout the suction supply line
and pick up tube.The use of smaller line,or rubber, plastic or hydraulic line is unsafe and will void your warranty.
7. Use thread sealing compound on all pipe thread connections. DO NOT USE TEFLON TAPE.
8. Install the suction line strainer in the suction line. Make sure the suction line strainer is 6”off the bottom of the tank.
The suction line strainer may be mounted horizontally or vertically.Consider accessibility.
9. Install a pipe union between the suction line strainer and the pick up tube to allow for service on the pick up tube.
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13
Section 7 - Fuel Supply Pump/ Piping
NOTE:This item comes pre-assembled from the factory.
RETURN LINE
TO TANK
Figure 5
FUEL LINE
TO BURNER
3/8” x 1/4’” NPT
P/N 8939
Fuel Relief Valve
P/N 8470
3/8” x 1/4’” NPT
P/N 8939
Tee
P/N 8909
Close Nipple
P/N 8647
Fuel Regulator
P/N 8460
Bushing P/N 8908
Nipple P/N 8915
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. This gauge will indicate when service is needed on
the strainer,pump,connections, or fuel level.
12. Install fuel regulator and fuel relief valve assembly (see Fig 5). NOTE:This item comes pre-assembled from the
factory.
13. Install the 3/8" diameter copper line from the fuel relief valve to the fuel supply tank. Do not allow this line to protrude into the tank more that 1”. This line should not be submerged in oil. 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 THIS LINE IS 25 FEET.
15. If using copper line on the suction side of the pump, use flare fittings.Compression fittings may be used on the
push side of the pump.
16. Keep the fuel supply lines 1” off any outside walls.
14
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