DHI-300 DUCTABLE WASTE OIL HEATER Installation and Operating Instructions Lanair Waste Oil Heaters & Boilers 4109 Capital Circle Janesville, Wisconsin 53546 608-752-1601 www.lanair.com Listed MH 14518 (N) © 2006 Martrade LLC Lanair is a registered trademark of Martrade LLC P/N L44 REVISED 1-06 Lanair Waste Oil Heaters & Boilers 4109 Capital Circle Janesville, Wisconsin 53546 608-752-1601 www.lanair.
Section 16 - Burner Reference Diagram BEFORE YOU BEGIN INSTALLATION... IMPORTANT This heater is for commercial and industrial use only. This unit is not intended for residential Ignitor use. • This heater must be installed and/or inspected by a licensed heating contractor before operation. Installer should be trained and thoroughly familiar with the installation and operation of oil-fired heaters.
Section 15 - Warranty LANAIR 1O YEAR WASTE OIL HEATER LIMITED WARRANTY Lenan Corp., MANUFACTURER, hereby warrants that any part of manufacturer’s product 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, Wisc. for inspection and warranty determination.
Installation Notes: Section 1 - General Specifications & Hazards 7 2 1 8 9 10 11 3 6 4 5 DHI Series Burner NOTE: This burner intended for use with DHI 300 Lanair Waste Oil-Fired Heater Only No.
Section 14 - Troubleshooting Symptom Possible Cause Corrective Action C. Burner fires, and then fails on oil primary safety 1. Contaminated fuel supply (water/anti freeze/gear lube) or dirty fuel filter. 1. Drain and clean fuel supply tank. Clean fuel filter (see page 37) 2. Improper draft 2. Check draft see page 15. Make sure chimney is properly installed 3. Plugged heat exchanger, manifold, or chimney 3. Clean heater including manifold and chimney 4. Wrong air pressure 4.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards 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.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards Burner fuel pressure gauge reading hints: Blower Moter Assembly Fuel gauge fluctuates (jumps): • Suction Line Leak. • Air in fuel, refer to Troubleshooting Chart Item B. • Quad ring seal for the nozzle may be damaged. • Seal in adapter block may be worn or damaged. • Fuel pressure regulator seal leaking or dirty. • Suction line strainer plugged or dirty.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards 7 2 • Install a jumper wire between the two F-F terminals. • Push reset button for 2 seconds. • Turn room thermostat up so that it calls for heat. • Disable the air operated fuel valve. • To activate the oil primary momentarily dis connect one end of the jumper wire on the F-F terminals. The burner will attempt to fire. 8 IMPORTANT remove the jumper wire when testing is complete, and replace the cad cell wires.
Section 1 - General Specifications & Hazards Section 14 - Troubleshooting Initial Diagnosis: When an operating problem occurs, a determination must be made whether or not the fuel pump is pumping a sufficient amount of oil that contains no air or water. Take these steps: • Adjust the burner air regulator to -0- PSI. • Turn pre-heater rocker switch off (red light off ). • Shut off oil supply line valve to the burner. • Remove the fuel supply line from the supply tank.
Section 2 - Heater Installation TYPICAL INSTALLATION: HEATER/CHIMNEY PACKAGE Through the wall installation Section 13 - Service / Maintenance Fuel By-Pass Regulator Diaphragm Replacement Fuel By-Pass Regulator Assembly adjusting screw locking nut cap small plug 1. Disconnect power to the heater. 2. Remove the locking nut and adjusting screw from the by-pass regulator assembly. 3. Disassemble the by-pass regulator and discard the small plug, spring, large plug, washer and diaphragm. 4.
! ! Section 2 - Heater Installation Section 13 - Service / Maintenance CAUTION: THE CLEAN OUT PANEL MUST HAVE AN AIR TIGHT SEAL TO PREVENT EXTREME DAMAGE TO THE COMBUSTION CHAMBER CAUTION: TO AVOID SCREW BREAKAGE, DO NOT OVER-TIGHTEN 5. Use an industrial type canister vacuum cleaner with a high efficiency filter, or ash rake to pull the ash to the front of the heat exchanger tubes for removal. Failure to clean heat exchanger tubes annually will impair draft.
Section 3 - Chimney/Vent System Figure 2 - Typical Chimney Installation ! ! Section 13 - Service / Maintenance NOTE: ALWAYS WEAR EYE, FACE AND BREATHING PROTECTION AND PROTECTIVE CLOTHING WHEN INSPECTING OR CLEANING CHAMBER OR HEAT EXCHANGER. WARNING: DISCONNECT ALL ELECTRICAL POWER TO HEATER BEFORE SERVICING Cleaning Combustion Chamber/ Heat Exchanger 1.
Section 13 - Service / Maintenance Air Pre-Heater Diaphragm Replacement 1. 2. 3. 4. Remove the four hex cap screws from the diaphragm assembly and discard. Disassemble and discard diaphragm, spring and o-ring . Thoroughly clean remaining parts. Re-assemble using new diaphragm, o-ring, spring and hex cap screws. Air Pre-Heater Nozzle Cleaning / Replacement 1. 2. 3. 4. 5. ! 6. Periodic cleaning of the nozzle assembly may be required. Carefully remove nozzle from the air pre-heater block.
Section 3 - Chimney/Vent System 17. 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. 18. The heater and chimney must be installed in accordance with all state and local codes. The heater must be installed in accordance with the specifications listed in this manual.
Section 4 - Draft Section 13 - 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.
! Section 5 - Fuel Supply Tank Installation If using a Lanair supply tank follow instructions included with the tank. General Requirements 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 not too exceed 275 gallons individually, and are not to exceed a total capacity of 550 gallons in one building. Check State and Local codes. 3.
Section 6 - Fuel Supply Pump/Piping Section 13 - Service / Maintenance General Requirements Oil Pre-Heater Tune -Up Kit (PN# 9869) Required. 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 intended for indoor use only. 4.
Section 6 - Fuel Supply Pump/Piping 14. Install the fuel supply line from the fuel by-pass regulator (port B) to the inlet port on the left side of the burner using 1/2” inside diameter (.493) steel pipe, or 1/2” outside diameter copper tubing. The maximum distance of this line is 25 feet. The fuel supply line must be run below the burner at all times. If the fuel supply line runs above the burner it will create head pressure. This head pressure will over-fire the burner voiding the warranty. 15.
Section 7 - Air Supply Installation Section 13 - Service / Maintenance Maintenance - Air Pre-Heater 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 preheater 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).
! Section 8 - Electrical Connections Section 13 - Service / Maintenance Air Pre-Heater Tune -Up Kits (PN# 9870 & 9871) Required. 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 two separate 20 AMP, 115 VAC, 60 HZ single phase circuit. 3.
Section 8 - Electrical Connections Section 13 - Service / Maintenance DHI SERIES HEATER SERVICE / MAINTENANCE SCHEDULE DAILY WEEKLY MONTHLY Figure 7 ANNUALLY (Season Shut Down) • Check fuel supply tank level (pre-strain all fuels). • Drain water/ antifreeze from the fuel supply tank. • Check vacuum gauge • Check the air presreading on suction sure setting on the line. See Section 19. primary air regulator. Set to 30 psi.
! Section 8 - Electrical Connections Section 12 - Flame 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. CAUTION: HAZARD OF ELECTRICAL SHOCK! Fuel Supply Pump Electrical Installation 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.
! Section 9 - Controls Section 12 - Flame Adjustment NOTE: ALWAYS WEAR EYE, FACE AND BREATHING PROTECTION AND PROTECTIVE CLOTHING WHEN INSPECTING OR ADJUSTING FLAME. Lift the inspection port cover on the front of the combustion chamber to observe the flame. The flame tips should extend 3/4 of the way into the combustion chamber. When the unit is adjusted properly the ash inside the chamber will be white to off white.
Section 9 - Controls Section 12 - Flame Adjustment Flame Adjustment • 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 electrical box. (See Page 51). 1. Start the heater, let it run for at least 15 minutes to reach operating temperature before proceeding. 2.
Section 11 - Burner Start-Up Procedure Section 10 - Priming The Fuel Pump Priming The Fuel Pump Figure 8 15. Adjust the fuel pressure gauge on the left side of the burner to read. Model DHI-300 No. 1 & No. 2 Fuel Oil Approved Waste Oil 4.5 (4-1/2) LBS. 5-6 LBS. NOTE: Adjust the thumb screw on the fuel bypass regulator clockwise to increase pressure, and counter clockwise to decrease pressure to the burner.
Section 10 - Priming The Fuel Pump 12. Turn the room thermostat below room temperature or “OFF”. The fuel supply pump will now stop. 13. Reconnect the fuel supply line to the burner. 14. Remove the jumper wire from the F-F terminals on the oil primary control, reattach the yellow cad cell wires. 15. Adjust the burner air filter/regulator to 15 PSI. 16. If the fuel supply pump prime, or fuel stream has air in it (spurting, fluctuating flow) there is likely a leak in the suction side of the plumbing.
Section 10 - Priming The Fuel Pump 12. Turn the room thermostat below room temperature or “OFF”. The fuel supply pump will now stop. 13. Reconnect the fuel supply line to the burner. 14. Remove the jumper wire from the F-F terminals on the oil primary control, reattach the yellow cad cell wires. 15. Adjust the burner air filter/regulator to 15 PSI. 16. If the fuel supply pump prime, or fuel stream has air in it (spurting, fluctuating flow) there is likely a leak in the suction side of the plumbing.
Section 11 - Burner Start-Up Procedure Section 10 - Priming The Fuel Pump Priming The Fuel Pump Figure 8 15. Adjust the fuel pressure gauge on the left side of the burner to read. Model DHI-300 No. 1 & No. 2 Fuel Oil Approved Waste Oil 4.5 (4-1/2) LBS. 5-6 LBS. NOTE: Adjust the thumb screw on the fuel bypass regulator clockwise to increase pressure, and counter clockwise to decrease pressure to the burner.
Section 9 - Controls Section 12 - Flame Adjustment Flame Adjustment • 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 electrical box. (See Page 51). 1. Start the heater, let it run for at least 15 minutes to reach operating temperature before proceeding. 2.
! Section 9 - Controls Section 12 - Flame Adjustment NOTE: ALWAYS WEAR EYE, FACE AND BREATHING PROTECTION AND PROTECTIVE CLOTHING WHEN INSPECTING OR ADJUSTING FLAME. Lift the inspection port cover on the front of the combustion chamber to observe the flame. The flame tips should extend 3/4 of the way into the combustion chamber. When the unit is adjusted properly the ash inside the chamber will be white to off white.
! Section 8 - Electrical Connections Section 12 - Flame 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. CAUTION: HAZARD OF ELECTRICAL SHOCK! Fuel Supply Pump Electrical Installation 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.
Section 8 - Electrical Connections Section 13 - Service / Maintenance DHI SERIES HEATER SERVICE / MAINTENANCE SCHEDULE DAILY • Check fuel supply tank level (pre-strain all fuels). WEEKLY • Drain water/ antifreeze from the fuel supply tank. • Check vacuum gauge • Check the air presreading on suction sure setting on the line. See Section 19. primary air regulator. Set to 30 psi. • Check atomizing air pressure at the air fil- • Drain water from the ter/ regulator. Set to air pressure supply 15 psi.
! Section 8 - Electrical Connections Section 13 - Service / Maintenance Air Pre-Heater Tune -Up Kits (PN# 9870 & 9871) Required. 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 two separate 20 AMP, 115 VAC, 60 HZ single phase circuit. 3.
Section 7 - Air Supply Installation Section 13 - Service / Maintenance Maintenance - Air Pre-Heater 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 preheater 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).
Section 6 - Fuel Supply Pump/Piping 14. Install the fuel supply line from the fuel by-pass regulator (port B) to the inlet port on the left side of the burner using 1/2” inside diameter (.493) steel pipe, or 1/2” outside diameter copper tubing. The maximum distance of this line is 25 feet. The fuel supply line must be run below the burner at all times. If the fuel supply line runs above the burner it will create head pressure. This head pressure will over-fire the burner voiding the warranty. 15.
Section 6 - Fuel Supply Pump/Piping Section 13 - Service / Maintenance General Requirements Oil Pre-Heater Tune -Up Kit (PN# 9869) Required. 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 intended for indoor use only. 4.
! Section 5 - Fuel Supply Tank Installation If using a Lanair supply tank follow instructions included with the tank. General Requirements 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 not too exceed 275 gallons individually, and are not to exceed a total capacity of 550 gallons in one building. Check State and Local codes. 3.
Section 4 - Draft Section 13 - 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.
Section 3 - Chimney/Vent System 17. 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. 18. The heater and chimney must be installed in accordance with all state and local codes. The heater must be installed in accordance with the specifications listed in this manual.
Section 13 - Service / Maintenance Air Pre-Heater Diaphragm Replacement 1. 2. 3. 4. Remove the four hex cap screws from the diaphragm assembly and discard. Disassemble and discard diaphragm, spring and o-ring . Thoroughly clean remaining parts. Re-assemble using new diaphragm, o-ring, spring and hex cap screws. Air Pre-Heater Nozzle Cleaning / Replacement 1. 2. 3. 4. 5. ! 6. Periodic cleaning of the nozzle assembly may be required. Carefully remove nozzle from the air pre-heater block.
Section 3 - Chimney/Vent System Figure 2 - Typical Chimney Installation ! ! Section 13 - Service / Maintenance NOTE: ALWAYS WEAR EYE, FACE AND BREATHING PROTECTION AND PROTECTIVE CLOTHING WHEN INSPECTING OR CLEANING CHAMBER OR HEAT EXCHANGER. WARNING: DISCONNECT ALL ELECTRICAL POWER TO HEATER BEFORE SERVICING Cleaning Combustion Chamber/ Heat Exchanger 1.
! ! Section 2 - Heater Installation Section 13 - Service / Maintenance CAUTION: THE CLEAN OUT PANEL MUST HAVE AN AIR TIGHT SEAL TO PREVENT EXTREME DAMAGE TO THE COMBUSTION CHAMBER CAUTION: TO AVOID SCREW BREAKAGE, DO NOT OVER-TIGHTEN 5. Use an industrial type canister vacuum cleaner with a high efficiency filter, or ash rake to pull the ash to the front of the heat exchanger tubes for removal. Failure to clean heat exchanger tubes annually will impair draft.
Section 2 - Heater Installation TYPICAL INSTALLATION: HEATER/CHIMNEY PACKAGE Through the wall installation Section 13 - Service / Maintenance Fuel By-Pass Regulator Diaphragm Replacement Fuel By-Pass Regulator Assembly adjusting screw locking nut cap small plug 1. Disconnect power to the heater. 2. Remove the locking nut and adjusting screw from the by-pass regulator assembly. 3. Disassemble the by-pass regulator and discard the small plug, spring, large plug, washer and diaphragm. 4.
Section 1 - General Specifications & Hazards Section 14 - Troubleshooting Initial Diagnosis: When an operating problem occurs, a determination must be made whether or not the fuel pump is pumping a sufficient amount of oil that contains no air or water. Take these steps: • Adjust the burner air regulator to -0- PSI. • Turn pre-heater rocker switch off (red light off ). • Shut off oil supply line valve to the burner. • Remove the fuel supply line from the supply tank.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards 7 2 • Install a jumper wire between the two F-F terminals. • Push reset button for 2 seconds. • Turn room thermostat up so that it calls for heat. • Disable the air operated fuel valve. • To activate the oil primary momentarily dis connect one end of the jumper wire on the F-F terminals. The burner will attempt to fire. 8 IMPORTANT remove the jumper wire when testing is complete, and replace the cad cell wires.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards Burner fuel pressure gauge reading hints: Blower Moter Assembly Fuel gauge fluctuates (jumps): • Suction Line Leak. • Air in fuel, refer to Troubleshooting Chart Item B. • Quad ring seal for the nozzle may be damaged. • Seal in adapter block may be worn or damaged. • Fuel pressure regulator seal leaking or dirty. • Suction line strainer plugged or dirty.
Section 14 - Troubleshooting Section 1 - General Specifications & Hazards 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.
Section 14 - Troubleshooting Symptom Possible Cause Corrective Action C. Burner fires, and then fails on oil primary safety 1. Contaminated fuel supply (water/anti freeze/gear lube) or dirty fuel filter. 1. Drain and clean fuel supply tank. Clean fuel filter (see page 37) 2. Improper draft 2. Check draft see page 15. Make sure chimney is properly installed 3. Plugged heat exchanger, manifold, or chimney 3. Clean heater including manifold and chimney 4. Wrong air pressure 4.
Installation Notes: Section 1 - General Specifications & Hazards 7 2 1 8 9 10 11 3 6 4 5 DHI Series Burner NOTE: This burner intended for use with DHI 300 Lanair Waste Oil-Fired Heater Only No.
Section 15 - Warranty LANAIR 1O YEAR WASTE OIL HEATER LIMITED WARRANTY Lenan Corp., MANUFACTURER, hereby warrants that any part of manufacturer’s product 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, Wisc. for inspection and warranty determination.
Section 16 - Burner Reference Diagram BEFORE YOU BEGIN INSTALLATION... IMPORTANT This heater is for commercial and industrial use only. This unit is not intended for residential Ignitor use. • This heater must be installed and/or inspected by a licensed heating contractor before operation. Installer should be trained and thoroughly familiar with the installation and operation of oil-fired heaters.
DHI-300 DUCTABLE WASTE OIL HEATER Installation and Operating Instructions Lanair Waste Oil Heaters & Boilers 4109 Capital Circle Janesville, Wisconsin 53546 608-752-1601 www.lanair.com Listed MH 14518 (N) © 2006 Martrade LLC Lanair is a registered trademark of Martrade LLC P/N L44 REVISED 1-06 Lanair Waste Oil Heaters & Boilers 4109 Capital Circle Janesville, Wisconsin 53546 608-752-1601 www.lanair.
