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                             WASTE OIL FIRED BURNER
                                      WOB Series
                   Installation, Operation, And Service Instructions
                                             Manual




Thank you and congratulations on your purchase of an Omni Waste Oil Fired Burner. You have selected a
high quality, precision-engineered piece of equipment, designed to give you many benefits as well as years
                                       of outstanding performance.

Econo Heat♦5714 1st Avenue♦Spokane Washington 99212.♦(509)534-1022♦www.econoheat.com
100269 Rev A1
PRECAUTIONS
Waste oil may contain many foreign materials. Waste oil may also contain
gasoline. Therefore, specific precautions on the handling and storage of waste
oils are to be observed when using, cleaning and maintaining this heater. Use a
screen in a funnel when pouring oil into storage tank to catch foreign
material, i.e., gasket material and sealant fibers, etc. WARNING: This
appliance is not designated for use in hazardous atmospheres containing
flammable vapors or combustible dust, or atmospheres containing
chlorinated or halogenated hydrocarbons. Do not expose this unit to rain
or moisture. If installed in high moisture atmosphere, a special cover for
the integrated air compressor must be obtained from factory to avoid
rusting of internal raw metals. If this occurs, see trouble-shooting guide for
remedy. Uses only crank case oil, gear oil, hydraulic oils, auto trans. Fluid or #1
and #2 furnace oil. Do not use old, contaminated oils that have been stored in
underground tanks or outside barrels for long periods. Excessive water and
sludge may be present, causing quick filter plugging.

NOTES: The instructions contained in this manual apply to the installation,
operation, and service of Omni Waste oil fired burner. The following instructions
should be carefully followed for obtaining the best possible installation, operation
and service conditions. Specifications are subject to change without notice. This
unit was designed to provide an economical disposal of waste oil. Proper
operation depends on the consistency of the oil. Any water or foreign material in
the oil may cause the unit to shut down.

UNCRATING: Immediately upon uncrating units, check rating plate for certainty
of electrical and mechanical characteristics. Also check the unit for any damage
that may have been incurred in shipment, if any damage is found, file a claim
with the transporting agency. The unit has been tested and inspected at the
factory prior to crating and was in perfect condition at that time. If anything is
missing check packing slip for indications of possible backorder of those parts or
components. Otherwise a claim must be for those missing parts.




2                                                  Installation, Operation, And Service Instructions
IMPORTANT
                                  NOTICE TO OWNER
                                   AND INSTALLER
To enjoy the long term benefits of burning your used oil in an Omni Waste Oil Burner, it is
necessary to become familiar with the correct installation operation and maintenance of your new
burner. Before installing or operating this appliance, make sure you read and understand this
manual.

                 IMPROPER INSTALLATION OR LACK OF
                            MAINTENANCE
                      WILL VOID THE WARRANTY
The most critical sections of this manual are in order of importance as follows:

•    Basic Operation Knowledge
•    Oil Suction Line Installation
•    Correct Draft Over Fire
•    General Maintenance Requirements

Identical to any gas or oil burning appliance, without adequate draft over the fire, the
combustion gases cannot escape the appliance. The flame will lengthen resulting in an
overheated combustion chamber. Even if the heater is installed correctly and adequate draft
achieved, a flue passage blockage will affect the draft. Burning used oil is similar to burning
wood. A fine gray ash accumulates in the chamber and flue passage. This accumulation of ash
will eventually affect the draft. It is important to remove this ash before the draft is affected.

These topics are discussed in detail on the pages listed above. Please familiarize yourself with
these sections of your manual. Spending a few minutes to review this material will assure that
you receive the return on investment that you expect from your Omni heater.



       Note:
       All illustrations and specifications contained herein are based on
       the latest information available at time of publication approval.
       Econo Heat reserves the right to make changes at any time
       without notice, in material and specifications.




Installation, Operation, And Service Instructions                                                    3
WASTE OIL BURNER
       PRECAUTIONS:
          • Waste oil may contain many foreign materials. Waste oil may also contain gasoline,
            therefore, specific precautions on the handling and storage of used oils are to be
            observed when using, cleaning and maintaining this burner. Use a screen in a funnel
            when pouring oil into storage tank to catch foreign material, i.e., gasket material
            and sealant fibers, etc.

             •   WARNING: This appliance is not designed for use in hazardous atmospheres
                 containing flammable vapors or combustible dust, or atmospheres containing
                 chlorinated or halogenated hydrocarbons.

             •   Use only used crank case oil, gear lube oil, hydraulic oils, automatic transmission fluid or
                 #1 and #2 furnace oil. DO NOT use old contaminated oils that have been stored in
                 underground tanks or outside barrels for long periods. Excessive water and sludge may
                 be present, causing quick filter failure. DO NOT USE NEW MOTOR OILS, they will not
                 burn thoroughly.

             •   This appliance is designed for commercial or industrial use only.
                                                     WARNING
           ONLY Authorized Technicians strictly complying with the manufacturer’s instructions
           and the local standards should perform installation, maintenance and service on the
           unit’s internal components. Installation and use of this used oil burning appliance shall
           be in accordance with the standard for the Installation of Oil Burning Equipment –
           ANSI/NFPA 31 – 1987, and National Electric Code – ANSI/NFPA 70 – 1990 and the
           requirements of the inspection authorities having jurisdiction.

                                                                                 Oil Primary
                Igniter                                                           Control
             Transformer




                                                                                                     Air Pressure
                                                                                                       Adjuster


    Air Band
 (Combustion Air
                                                                                                   Air
Supply Adjustment)
                                                                                                   Compressor

                   Power Switch
                                                                                       Air Pressure
                                        Run                                               Gauge
                                      Indicator       Power         Oil Pressure
                                                     Indicator         Gauge


       Figure 1 – Oil Burner (Back View Closed)



       4                                                             Installation, Operation, And Service Instructions
Pre-Heater Control
                                                            Circuit Board


       Oil Pre-Heater
            Block
                                                                       Air
                                                                  Muffler/Filter


    Photo Eye
  Flame Sensor
                                                                         Electrical Terminal
                                                                                Block




              Transformer
             Igniter Springs
                                                                              Electrical
                                                                              Schematic



Figure 2 – Oil Burner (Back View Opened)




                                                                              Electrodes



       Oil Valve

                                                                          Nozzle



                                                Burner
                                                Motor      Flame Cone




Figure 3 – Oil Burner (Front View)




Installation, Operation, And Service Instructions                                              5
Oil Outlet

                                                                                          Oil Inlet




Figure 4 –Oil Pump Diagram




Figure 5 –Oil Pump Assembly




6                                     Installation, Operation, And Service Instructions
OIL BURNER TECHNOLOGY

Omni’s patented burner technology improves the efficiency of the oil burn process by continuous
stabilization of the oil viscosity. Optimum atomization (spray) is accomplished by precisely pre-
heating the oil and air prior to introduction to the combustion chamber. The waste oil enters into
the Oil Pre-Heater Block (figure2) and is pre-heated to operating thermo setpoint, then
compressed air from the air compressor (figure1) is mixed with the oil prior to spraying out the
nozzle similar to fuel injection, by breaking up the oil droplets into a finer mist or spray
(atomization). Electrodes mounted just above the nozzle (figure3) provides continuous electrical
arc across electrode to electrode igniting the fine oil mist as it sprays out of the nozzle. Once
ignited the flame is forced into a swirl caused by the burners blower and specially designed flame
cone (figure3) providing a very efficient and thorough burn of the waste oil.
Burner Components
     •    Igniter Transformer: (figure1) Supplies high voltage to the electrodes generating
          electrical arc igniting the oil.
     •    Oil Valve: (figure3) energizes when burner is running and de-energizes when burner is
          not running eliminating bleed back of oil out of the Pre-heater block.
     •    Air Band: (figure1) Adjusts amount of air introduced into the combustion chamber.
     •    Oil Primary Control: (figure1) Controls the oil burner ignition. Checks for flame in the
          combustion chamber, if no flame is detected within 45 seconds, the oil primary will
          shutdown the oil burner. To restart the unit, reset the red button on the oil primary.
     •    Oil Pre-Heater Block: (figure2) Pre-heats the oil and air before entering combustion
          chamber.
     •    Photo Eye: (figure2) Senses flame in combustion chamber and signals oil primary when
          no flame is present.
     •    Igniter Springs: (figure2) Transfers the high voltage from the igniter transformer to the
          electrodes (when door is closed)
     •    Air Pressure Gauge: (figure1) Displays air pressure supplied by onboard air
          compressor.
     •    Air Compressor: (figure1) Supplies air used within pre-heater block to aid in atomization
          of the oil.
     •    Air Muffler/Filter: (figure2) Filters air and muffles the sound generated by the
          compressor.
     •    Pre-Heater Control Circuit Board: (figure2) Precisely controls temperature of the Oil
          Pre-Heater Block and controls safety feature of not allowing burner to energize until oil
          has established operating thermo setpoint or shutdown burner if Pre-Heater Block
          temperature falls below shutdown thermo setpoint.
     •    Electrodes: (figure3) Provides continuous high voltage electrical arc from electrode to
          electrode igniting the waste oil as it is being sprayed out of the nozzle.
     •    Nozzle: (figure3) Low pressure nozzle for oil spray pattern.
     •    Flame Cone: (figure3) Specially engineered flame cone forces the flame into a swirl
          pattern improving the burn thoroughness.
     •    Burner Motor: (figure3) Multitask motor turns the burner blower and integrated air
          compressor.




Installation, Operation, And Service Instructions                                                7
•   Air Pressure Adjuster: (figure1) Adjusts the air pressure going to the pre-heater block.
        Should be adjusted between 12 PSI and 13PSI as indicated on the Air Pressure Gauge
        on the burner for thorough burn of the waste oil.
         Note: In order to insure proper air adjustment, air gauge must read 0 when burner
        is cycled off or powered down.
    •   Oil Pressure Gauge: (figure1) Displays oil pressure at the burner. Adjustment at the Oil
        Pump must be made to achieve oil pressure readings at the burner as indicated below.
                                                     Oil Pressure Reading At
                            OMNI Model
                                                              Burner

                               OWB-9                          1 PSI
                         OWB-15 & OWH-150                     2 PSI
                         OWB-25 & OWH-250                     4 PSI
                         OWB-35 & OWH-350                     6 PSI
                         OWB-50 & OWH-500                    11 PSI


    •   Power Indicator: (figure1) Indicates when power is present at the burner.
    •   Run Indicator: (figure1) Indicates that the burner is ready for operation after the initial
        pre-heat time of approx. 5 minutes from initial power up.
    •   Power Switch: (figure1) Switches power off and on to the burner. NOTE: Not applicable
        on OWH Series Furnaces.




8                                                           Installation, Operation, And Service Instructions
TECHNICAL DATA

       BURNER ASSEMBLY
       Performance Ratings
       Voltage                                                    -     115 VAC
       Cycles                                                     -      60Hz
       Total Operating Amperage (Burner Only)                   Amp        8.4
       Total Operating Amperage (Burner and Oil Pump)           Amp       10.5
       Electrical Operating Consumption (Burner Only)           Watts     970
       Electrical Operating Consumption (Burner and Oil Pump)   Watts    1,212
       Weight                                                   Lbs       36.5
       Oil Primary                                              Amp        0.2
       Oil Valve                                                Amp      0.075
       Pre-Heater Block                                         Amp        4.2
       Pre-Heater Controller Board                              Amp      0.011
       Igniter Transformer                                      Amp        0.3
       Burner Motor                                             Amp        3.6



       PUMP ASSEMBLY
       Performance Ratings
       Voltage                                                    -     115Vac
       Cycles                                                     -      60Hz
       Total Operating Amperage (Pump Assy Only)                Amps      2.1
       Electrical Operating Consumption (Pump Assy Only)        Watts    241.5
       Weight                                                    Lbs      16
       Oil Valve                                                Amps     0.075
       Pump Motor                                               Amps      2.0




Installation, Operation, And Service Instructions                                 9
INSTALLATION

     1. Omni Waste Oil Burners are to be installed on manufactures approved appliances.
        Check with factory for application approval. Warranty is voided if burner is used in a non-
        approved application.
     2. Wire 115Vac power into main electrical box located on top of burner. Use dedicated
        15amp protection circuit with 12 gauge wire. Connect Oil Pump with 12 gauge wire.
     3. Depending on application, wire low voltage thermostat into “T” terminals on the Oil
        Primary (figure 1) or jump “T” terminals for continuous operation.
     4. USE ONLY 3/8” nominal ID copper tubing with flare fittings only on the oil suction from
        the tank to the oil pump and oil pump to burner. DO NOT use ferrule fittings or teflon
        tape on any pipe fittings. Keep suction line approximately 6” from bottom of oil tank to
        prevent suction of sludge. Use only an inside oil storage tank. Do Not draw from an
        outside tank, especially not an underground tank directly to burner. A separate transfer
        pump from an outside tank with proper filtration to the inside supply tank is acceptable.
     5. The fuel pump included with burner is to be mounted at tank level or below.


                                         STARTUP
     1. IMPORTANT- Prior to starting the unit, pre-fill the filter and fuel line with oil to assist
        priming procedure. Oil pump motor turns at low RPM’s and would take significant time to
        complete priming process if not pre-filled. Make sure the oil supply line fittings are air
        tight. Vacuum leaks are notoriously hard to find. Pressurizing the line with oil in it can
        help to locate leaks.
     2. During the initial power up process the burner is locked out from energizing until the oil
        has been properly pre-heated to operating thermo setpoint, approx 3 to 5 minute
        duration. Once the oil has been pre-heated, power is then applied to burner
        componenets and oil pump.
     3. Making sure the thermostat is turned off, apply power to the burner. Switch burner main
        power switch to ON position. After allowing the oil pre-heater time to establish
        temperature setpoint, approximately 5 minutes. Jump the “T” terminals on the Oil Primary
        (figure 1). Once the burner is running, temporarily jump the “F” terminals on the Oil
        Primary. This will allow the burner to run during the pump priming process.
     4. Priming the oil pump: Open bleeder valve one turn until all air is expelled (figure 4). This
        may need to be done twice to insure all air is removed. IMPORTANT: When fully purged
        and flame is established remove temporarily jumpers on “F” terminals of the Oil Primary
        to allow safety features of the unit to operate properly.
     5. Adjust air supply of integrated air compressor to 12-13 P.S.I. This is factory preset,
        however, due to freight handling settings may be compromised.
     6. Combustion air band (figure1) should be open approximately 1/2” or until flame is clear
        yellow, not orange. Opening the air band too far may cause delayed in starting or even
        prevent the flame from starting.

                                       MAINTENANCE
     1. Weekly Drain water from storage tank.
     2. Monthly Clean pump screen on oil pump assembly of sludge and remove any water.
        Access to screen is by removing pump cover. Clean flame cone of deposits. Clean air
        compressor filter/muffler.
     3. Yearly Inspect and adjust electrodes per (figure 6). CAUTION: turn off main electrical
        power before checking or adjusting electrode settings. Inspect and check alignment


10                                                           Installation, Operation, And Service Instructions
of nozzle in relation to flame cone/burner tube (figure 6). Tip of nozzle must be 1/4”
          forward of inside radius of flame cone. If nozzle is behind inside radius of flame cone,
          coking will occur and flame cone can clog. To adjust, loosen Pre-Heater block securing
          nut and set screw, push fore or aft as needed then retighten securing nut and set screw.




  Figure 6 –Electrode Adjusment Diagram




                         When cleaning, inspect all three
                         pieces thoroughly. When
                         disassembling and reassembling
                         nozzle, keep facing up as shown.




  Figure 7 –Nozzle Assembly Detail




Installation, Operation, And Service Instructions                                               11
RED               OIL
                                                        PREHEATER BLOCK
                                                          CONTROLLER
                                            WHT
                                                                                                                              BURNER




                                               HTR




                                                                                               PRI
                                                         L1




                                                                            L2
                                                                                                                               DOOR
                                                                                                                            SAFETY PLUG


                                                                                                                  WHT
                                                                                                                  GRN


                               500W
                               HEAT                                                                                                    BLK
                                                                                                           Fuse         Power Switch




                                                                          WHT
                                                                          WHT

                                                                                       WHT
                                                              RED
                               ROD




                                                                          RED
                                                  BLU




                                                                                       BLK




                                                                                                     BLK
                                                                                              YEL
               THERMO-
               COUPLE




                                                                    RED




                                                                                              ORN
                                                                                        BLK
                                                        BLU




                                                                                                     BLK
                                                                                 WHT
                                                                           WHT
                     Bi
                     METAL         OIL
                     HIGH       PREHEATER                                                              BLOWER MOTOR
                     LIMIT        BLOCK
                     SWITCH
               WHT




                                                                                 WHT




                                                                                              ORN

                                                                                                     BLK
                       BLK




              HIGH
            VOLTAGE
             TRANS-           OIL PRIMARY CONTROL                                                    THERMOSTAT
            FORMER                    (IE, Honeywell, etc.)                                          CONNECTION




                                         PHOTO EYE
                                       FLAME SENSOR


     Figure 8 –Burner Wiring Diagram




12                                                                                       Installation, Operation, And Service Instructions
Omni Burner Assembly
                                        Limited Warranty
   Econo Heat (manufacturer) warrants to the purchaser of Burner Assembly will be free from
defects in materials and workmanship for the durations specified below, which duration begins on
 the date of purchase by the customer. Customer is responsible for maintaining proof of date of
   purchase. If return is deemed necessary for repair or replacement, unit is to be sent to the
 factory freight prepaid for evaluation and warranty determination. Econo Heat reserves the right
                     to determine appropriate action for repair or replacement.

     1.   Oil Heater Block, twenty (20) years. (Parts Only)
     2.   Oil Heater Block Controller PCB, three (3) years. (Parts Only)
     3.   All other components, one (1) year. (Parts Only)

This warranty is void if:
    1. Warranty registration card is not returned within thirty (30) days of purchase.
    2. Any part or component subject to abuse or altered from original manufactures specifications.
    3. Installation not in accordance with instructions or has not been properly maintained.
    4. Wiring not in accordance with diagram furnished with burner.
    5. Burner is operated in the presence of chlorinated vapors.

Warranty is limited to the original purchaser.

The above warranty is in lieu of all other warranties expressed or implied. Econo Heat does not authorize
any person or representative to make or assume any other obligation or liability that is not in accordance
with above warranty. Econo Heat is not responsible for any labor cost unless prior authorization in
writing has been obtained.

No parts will be accepted by Econo Heat without RA# (return authorization number) clearly marked on
outside of shipping package. Obtaining RA# requires model and serial numbers, description of part being
replaced and nature of defect.


                                    WARRANTY CARD
                                           Please fill our, tear off and return to manufacturer
Return following warranty information to manufacturer within thirty (30) days of purchase or warranty will
not be valid. (Please print or type).

Date of Purchase_____________________________________________________________________

Serial #__________________________ Model ____________________________________________

Customer Name_____________________________________________________________________

Address____________________________________________________________________________

City _________________________ State ________________ Zip Code ________________________

Dealer ____________________________________________________________________________

Address ___________________________________________________________________________

City_________________________ State _________________ Zip Code _______________________

Installed at ________________________________________________________________________




Installation, Operation, And Service Instructions                                                       13

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EconoHeat Manual for Vegetable Oil Heater

  • 1. By WASTE OIL FIRED BURNER WOB Series Installation, Operation, And Service Instructions Manual Thank you and congratulations on your purchase of an Omni Waste Oil Fired Burner. You have selected a high quality, precision-engineered piece of equipment, designed to give you many benefits as well as years of outstanding performance. Econo Heat♦5714 1st Avenue♦Spokane Washington 99212.♦(509)534-1022♦www.econoheat.com 100269 Rev A1
  • 2. PRECAUTIONS Waste oil may contain many foreign materials. Waste oil may also contain gasoline. Therefore, specific precautions on the handling and storage of waste oils are to be observed when using, cleaning and maintaining this heater. Use a screen in a funnel when pouring oil into storage tank to catch foreign material, i.e., gasket material and sealant fibers, etc. WARNING: This appliance is not designated for use in hazardous atmospheres containing flammable vapors or combustible dust, or atmospheres containing chlorinated or halogenated hydrocarbons. Do not expose this unit to rain or moisture. If installed in high moisture atmosphere, a special cover for the integrated air compressor must be obtained from factory to avoid rusting of internal raw metals. If this occurs, see trouble-shooting guide for remedy. Uses only crank case oil, gear oil, hydraulic oils, auto trans. Fluid or #1 and #2 furnace oil. Do not use old, contaminated oils that have been stored in underground tanks or outside barrels for long periods. Excessive water and sludge may be present, causing quick filter plugging. NOTES: The instructions contained in this manual apply to the installation, operation, and service of Omni Waste oil fired burner. The following instructions should be carefully followed for obtaining the best possible installation, operation and service conditions. Specifications are subject to change without notice. This unit was designed to provide an economical disposal of waste oil. Proper operation depends on the consistency of the oil. Any water or foreign material in the oil may cause the unit to shut down. UNCRATING: Immediately upon uncrating units, check rating plate for certainty of electrical and mechanical characteristics. Also check the unit for any damage that may have been incurred in shipment, if any damage is found, file a claim with the transporting agency. The unit has been tested and inspected at the factory prior to crating and was in perfect condition at that time. If anything is missing check packing slip for indications of possible backorder of those parts or components. Otherwise a claim must be for those missing parts. 2 Installation, Operation, And Service Instructions
  • 3. IMPORTANT NOTICE TO OWNER AND INSTALLER To enjoy the long term benefits of burning your used oil in an Omni Waste Oil Burner, it is necessary to become familiar with the correct installation operation and maintenance of your new burner. Before installing or operating this appliance, make sure you read and understand this manual. IMPROPER INSTALLATION OR LACK OF MAINTENANCE WILL VOID THE WARRANTY The most critical sections of this manual are in order of importance as follows: • Basic Operation Knowledge • Oil Suction Line Installation • Correct Draft Over Fire • General Maintenance Requirements Identical to any gas or oil burning appliance, without adequate draft over the fire, the combustion gases cannot escape the appliance. The flame will lengthen resulting in an overheated combustion chamber. Even if the heater is installed correctly and adequate draft achieved, a flue passage blockage will affect the draft. Burning used oil is similar to burning wood. A fine gray ash accumulates in the chamber and flue passage. This accumulation of ash will eventually affect the draft. It is important to remove this ash before the draft is affected. These topics are discussed in detail on the pages listed above. Please familiarize yourself with these sections of your manual. Spending a few minutes to review this material will assure that you receive the return on investment that you expect from your Omni heater. Note: All illustrations and specifications contained herein are based on the latest information available at time of publication approval. Econo Heat reserves the right to make changes at any time without notice, in material and specifications. Installation, Operation, And Service Instructions 3
  • 4. WASTE OIL BURNER PRECAUTIONS: • Waste oil may contain many foreign materials. Waste oil may also contain gasoline, therefore, specific precautions on the handling and storage of used oils are to be observed when using, cleaning and maintaining this burner. Use a screen in a funnel when pouring oil into storage tank to catch foreign material, i.e., gasket material and sealant fibers, etc. • WARNING: This appliance is not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, or atmospheres containing chlorinated or halogenated hydrocarbons. • Use only used crank case oil, gear lube oil, hydraulic oils, automatic transmission fluid or #1 and #2 furnace oil. DO NOT use old contaminated oils that have been stored in underground tanks or outside barrels for long periods. Excessive water and sludge may be present, causing quick filter failure. DO NOT USE NEW MOTOR OILS, they will not burn thoroughly. • This appliance is designed for commercial or industrial use only. WARNING ONLY Authorized Technicians strictly complying with the manufacturer’s instructions and the local standards should perform installation, maintenance and service on the unit’s internal components. Installation and use of this used oil burning appliance shall be in accordance with the standard for the Installation of Oil Burning Equipment – ANSI/NFPA 31 – 1987, and National Electric Code – ANSI/NFPA 70 – 1990 and the requirements of the inspection authorities having jurisdiction. Oil Primary Igniter Control Transformer Air Pressure Adjuster Air Band (Combustion Air Air Supply Adjustment) Compressor Power Switch Air Pressure Run Gauge Indicator Power Oil Pressure Indicator Gauge Figure 1 – Oil Burner (Back View Closed) 4 Installation, Operation, And Service Instructions
  • 5. Pre-Heater Control Circuit Board Oil Pre-Heater Block Air Muffler/Filter Photo Eye Flame Sensor Electrical Terminal Block Transformer Igniter Springs Electrical Schematic Figure 2 – Oil Burner (Back View Opened) Electrodes Oil Valve Nozzle Burner Motor Flame Cone Figure 3 – Oil Burner (Front View) Installation, Operation, And Service Instructions 5
  • 6. Oil Outlet Oil Inlet Figure 4 –Oil Pump Diagram Figure 5 –Oil Pump Assembly 6 Installation, Operation, And Service Instructions
  • 7. OIL BURNER TECHNOLOGY Omni’s patented burner technology improves the efficiency of the oil burn process by continuous stabilization of the oil viscosity. Optimum atomization (spray) is accomplished by precisely pre- heating the oil and air prior to introduction to the combustion chamber. The waste oil enters into the Oil Pre-Heater Block (figure2) and is pre-heated to operating thermo setpoint, then compressed air from the air compressor (figure1) is mixed with the oil prior to spraying out the nozzle similar to fuel injection, by breaking up the oil droplets into a finer mist or spray (atomization). Electrodes mounted just above the nozzle (figure3) provides continuous electrical arc across electrode to electrode igniting the fine oil mist as it sprays out of the nozzle. Once ignited the flame is forced into a swirl caused by the burners blower and specially designed flame cone (figure3) providing a very efficient and thorough burn of the waste oil. Burner Components • Igniter Transformer: (figure1) Supplies high voltage to the electrodes generating electrical arc igniting the oil. • Oil Valve: (figure3) energizes when burner is running and de-energizes when burner is not running eliminating bleed back of oil out of the Pre-heater block. • Air Band: (figure1) Adjusts amount of air introduced into the combustion chamber. • Oil Primary Control: (figure1) Controls the oil burner ignition. Checks for flame in the combustion chamber, if no flame is detected within 45 seconds, the oil primary will shutdown the oil burner. To restart the unit, reset the red button on the oil primary. • Oil Pre-Heater Block: (figure2) Pre-heats the oil and air before entering combustion chamber. • Photo Eye: (figure2) Senses flame in combustion chamber and signals oil primary when no flame is present. • Igniter Springs: (figure2) Transfers the high voltage from the igniter transformer to the electrodes (when door is closed) • Air Pressure Gauge: (figure1) Displays air pressure supplied by onboard air compressor. • Air Compressor: (figure1) Supplies air used within pre-heater block to aid in atomization of the oil. • Air Muffler/Filter: (figure2) Filters air and muffles the sound generated by the compressor. • Pre-Heater Control Circuit Board: (figure2) Precisely controls temperature of the Oil Pre-Heater Block and controls safety feature of not allowing burner to energize until oil has established operating thermo setpoint or shutdown burner if Pre-Heater Block temperature falls below shutdown thermo setpoint. • Electrodes: (figure3) Provides continuous high voltage electrical arc from electrode to electrode igniting the waste oil as it is being sprayed out of the nozzle. • Nozzle: (figure3) Low pressure nozzle for oil spray pattern. • Flame Cone: (figure3) Specially engineered flame cone forces the flame into a swirl pattern improving the burn thoroughness. • Burner Motor: (figure3) Multitask motor turns the burner blower and integrated air compressor. Installation, Operation, And Service Instructions 7
  • 8. Air Pressure Adjuster: (figure1) Adjusts the air pressure going to the pre-heater block. Should be adjusted between 12 PSI and 13PSI as indicated on the Air Pressure Gauge on the burner for thorough burn of the waste oil. Note: In order to insure proper air adjustment, air gauge must read 0 when burner is cycled off or powered down. • Oil Pressure Gauge: (figure1) Displays oil pressure at the burner. Adjustment at the Oil Pump must be made to achieve oil pressure readings at the burner as indicated below. Oil Pressure Reading At OMNI Model Burner OWB-9 1 PSI OWB-15 & OWH-150 2 PSI OWB-25 & OWH-250 4 PSI OWB-35 & OWH-350 6 PSI OWB-50 & OWH-500 11 PSI • Power Indicator: (figure1) Indicates when power is present at the burner. • Run Indicator: (figure1) Indicates that the burner is ready for operation after the initial pre-heat time of approx. 5 minutes from initial power up. • Power Switch: (figure1) Switches power off and on to the burner. NOTE: Not applicable on OWH Series Furnaces. 8 Installation, Operation, And Service Instructions
  • 9. TECHNICAL DATA BURNER ASSEMBLY Performance Ratings Voltage - 115 VAC Cycles - 60Hz Total Operating Amperage (Burner Only) Amp 8.4 Total Operating Amperage (Burner and Oil Pump) Amp 10.5 Electrical Operating Consumption (Burner Only) Watts 970 Electrical Operating Consumption (Burner and Oil Pump) Watts 1,212 Weight Lbs 36.5 Oil Primary Amp 0.2 Oil Valve Amp 0.075 Pre-Heater Block Amp 4.2 Pre-Heater Controller Board Amp 0.011 Igniter Transformer Amp 0.3 Burner Motor Amp 3.6 PUMP ASSEMBLY Performance Ratings Voltage - 115Vac Cycles - 60Hz Total Operating Amperage (Pump Assy Only) Amps 2.1 Electrical Operating Consumption (Pump Assy Only) Watts 241.5 Weight Lbs 16 Oil Valve Amps 0.075 Pump Motor Amps 2.0 Installation, Operation, And Service Instructions 9
  • 10. INSTALLATION 1. Omni Waste Oil Burners are to be installed on manufactures approved appliances. Check with factory for application approval. Warranty is voided if burner is used in a non- approved application. 2. Wire 115Vac power into main electrical box located on top of burner. Use dedicated 15amp protection circuit with 12 gauge wire. Connect Oil Pump with 12 gauge wire. 3. Depending on application, wire low voltage thermostat into “T” terminals on the Oil Primary (figure 1) or jump “T” terminals for continuous operation. 4. USE ONLY 3/8” nominal ID copper tubing with flare fittings only on the oil suction from the tank to the oil pump and oil pump to burner. DO NOT use ferrule fittings or teflon tape on any pipe fittings. Keep suction line approximately 6” from bottom of oil tank to prevent suction of sludge. Use only an inside oil storage tank. Do Not draw from an outside tank, especially not an underground tank directly to burner. A separate transfer pump from an outside tank with proper filtration to the inside supply tank is acceptable. 5. The fuel pump included with burner is to be mounted at tank level or below. STARTUP 1. IMPORTANT- Prior to starting the unit, pre-fill the filter and fuel line with oil to assist priming procedure. Oil pump motor turns at low RPM’s and would take significant time to complete priming process if not pre-filled. Make sure the oil supply line fittings are air tight. Vacuum leaks are notoriously hard to find. Pressurizing the line with oil in it can help to locate leaks. 2. During the initial power up process the burner is locked out from energizing until the oil has been properly pre-heated to operating thermo setpoint, approx 3 to 5 minute duration. Once the oil has been pre-heated, power is then applied to burner componenets and oil pump. 3. Making sure the thermostat is turned off, apply power to the burner. Switch burner main power switch to ON position. After allowing the oil pre-heater time to establish temperature setpoint, approximately 5 minutes. Jump the “T” terminals on the Oil Primary (figure 1). Once the burner is running, temporarily jump the “F” terminals on the Oil Primary. This will allow the burner to run during the pump priming process. 4. Priming the oil pump: Open bleeder valve one turn until all air is expelled (figure 4). This may need to be done twice to insure all air is removed. IMPORTANT: When fully purged and flame is established remove temporarily jumpers on “F” terminals of the Oil Primary to allow safety features of the unit to operate properly. 5. Adjust air supply of integrated air compressor to 12-13 P.S.I. This is factory preset, however, due to freight handling settings may be compromised. 6. Combustion air band (figure1) should be open approximately 1/2” or until flame is clear yellow, not orange. Opening the air band too far may cause delayed in starting or even prevent the flame from starting. MAINTENANCE 1. Weekly Drain water from storage tank. 2. Monthly Clean pump screen on oil pump assembly of sludge and remove any water. Access to screen is by removing pump cover. Clean flame cone of deposits. Clean air compressor filter/muffler. 3. Yearly Inspect and adjust electrodes per (figure 6). CAUTION: turn off main electrical power before checking or adjusting electrode settings. Inspect and check alignment 10 Installation, Operation, And Service Instructions
  • 11. of nozzle in relation to flame cone/burner tube (figure 6). Tip of nozzle must be 1/4” forward of inside radius of flame cone. If nozzle is behind inside radius of flame cone, coking will occur and flame cone can clog. To adjust, loosen Pre-Heater block securing nut and set screw, push fore or aft as needed then retighten securing nut and set screw. Figure 6 –Electrode Adjusment Diagram When cleaning, inspect all three pieces thoroughly. When disassembling and reassembling nozzle, keep facing up as shown. Figure 7 –Nozzle Assembly Detail Installation, Operation, And Service Instructions 11
  • 12. RED OIL PREHEATER BLOCK CONTROLLER WHT BURNER HTR PRI L1 L2 DOOR SAFETY PLUG WHT GRN 500W HEAT BLK Fuse Power Switch WHT WHT WHT RED ROD RED BLU BLK BLK YEL THERMO- COUPLE RED ORN BLK BLU BLK WHT WHT Bi METAL OIL HIGH PREHEATER BLOWER MOTOR LIMIT BLOCK SWITCH WHT WHT ORN BLK BLK HIGH VOLTAGE TRANS- OIL PRIMARY CONTROL THERMOSTAT FORMER (IE, Honeywell, etc.) CONNECTION PHOTO EYE FLAME SENSOR Figure 8 –Burner Wiring Diagram 12 Installation, Operation, And Service Instructions
  • 13. Omni Burner Assembly Limited Warranty Econo Heat (manufacturer) warrants to the purchaser of Burner Assembly will be free from defects in materials and workmanship for the durations specified below, which duration begins on the date of purchase by the customer. Customer is responsible for maintaining proof of date of purchase. If return is deemed necessary for repair or replacement, unit is to be sent to the factory freight prepaid for evaluation and warranty determination. Econo Heat reserves the right to determine appropriate action for repair or replacement. 1. Oil Heater Block, twenty (20) years. (Parts Only) 2. Oil Heater Block Controller PCB, three (3) years. (Parts Only) 3. All other components, one (1) year. (Parts Only) This warranty is void if: 1. Warranty registration card is not returned within thirty (30) days of purchase. 2. Any part or component subject to abuse or altered from original manufactures specifications. 3. Installation not in accordance with instructions or has not been properly maintained. 4. Wiring not in accordance with diagram furnished with burner. 5. Burner is operated in the presence of chlorinated vapors. Warranty is limited to the original purchaser. The above warranty is in lieu of all other warranties expressed or implied. Econo Heat does not authorize any person or representative to make or assume any other obligation or liability that is not in accordance with above warranty. Econo Heat is not responsible for any labor cost unless prior authorization in writing has been obtained. No parts will be accepted by Econo Heat without RA# (return authorization number) clearly marked on outside of shipping package. Obtaining RA# requires model and serial numbers, description of part being replaced and nature of defect. WARRANTY CARD Please fill our, tear off and return to manufacturer Return following warranty information to manufacturer within thirty (30) days of purchase or warranty will not be valid. (Please print or type). Date of Purchase_____________________________________________________________________ Serial #__________________________ Model ____________________________________________ Customer Name_____________________________________________________________________ Address____________________________________________________________________________ City _________________________ State ________________ Zip Code ________________________ Dealer ____________________________________________________________________________ Address ___________________________________________________________________________ City_________________________ State _________________ Zip Code _______________________ Installed at ________________________________________________________________________ Installation, Operation, And Service Instructions 13