Omni OWH-150 Installation, Operation And Service Instructions
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Omni OWH-150 Installation, Operation And Service Instructions

Waste oil fired heaters
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Installation, Operation, And Service Instructions
MODEL OWH-150
150,000 BTU
MODEL OWH-350
350,000 BTU
Thank you and congratulations on your purchase of an Omni Waste Oil Fired Heater. You have selected a high quality,
precision-engineered piece of equipment, designed to give you many benefits as well as years of outstanding
Econo Heat
5714 1st Avenue
Rev 4/2013
WASTE OIL FIRED HEATERS
Manual
240v
performance.
Spokane Washington 99212.
By
MODEL OWH-250
250,000 BTU
MODEL OWH-500
500,000 BTU
(509)534-1022
www.econoheat.com

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Summary of Contents for Omni OWH-150

  • Page 1 500,000 BTU 350,000 BTU Thank you and congratulations on your purchase of an Omni Waste Oil Fired Heater. You have selected a high quality, precision-engineered piece of equipment, designed to give you many benefits as well as years of outstanding performance.
  • Page 2 NOTES: The instructions contained in this manual apply to the installation, operation, and service of Omni Waste oil fired heaters. The following instructions should be carefully followed for obtaining the best possible installation, operation, and service conditions.
  • Page 3 NOTICE TO OWNER AND INSTALLER To enjoy the long-term benefits of burning your used oil in an Omni Waste Oil Burning appliance, it is necessary to become familiar with the correct installation operation and maintenance of your new furnace. Before installing or operating this appliance, make sure you read and understand this manual.

  • Page 4: Specifications

    SPECIFICATIONS MODEL OWH-150 OWH-250 OWH-350 OWH-500 BTU’S/HR INPUT 150,000 250,000 350,000 500,000 BTU’S/HR OUTPUT 120,000 215,000 300,000 410,000 GALLONS PER HOUR 1.75 VOLTAGE REQUIREMENTS AMPS FULL LOAD with 14.6 17.0 18.7 23.5 Pump FAN MOTOR HP 2 @ 1/4 each...

  • Page 5: Installation Procedures

    INSTALLATION PROCEDURES Figure 1 – Installation Diagram STACK INSTALLATION 1. Install a barometric damper (NOT included) in the stack if the draft up the stack exceeds -.08. Draft up the stack must be -.04 to -.06 inches of water column. Check with draft meter between the top of the heater and damper.
  • Page 6 2. For optional draft inducers or power vent wiring, See Figure 2. One of these devices must be installed where back draft is present. In building or correct draft cannot be achieved. OIL SUPPLY PIPING . Use ONLY 3/8” nominal ID copper tubing with flare fittings only on the fuel suction from the tank to the heater- Do NOT use ferrule fittings or Teflon tape on any pipefittings.

  • Page 7: Oil Burner

    Figure 2 – Wiring Diagram 1. Wire 240V into main electrical box mounted on burner backside of heater cabinet with separate circuit 20-amp protection using 12-gauge wire. Connect power line to black wire and all whites (NUETRAL or COMMON) together. IMPORTANT, Connect ground wire to ground mounting point in main junction box (green screw).
  • Page 8 Igniter Transformer Primary 240v Control 240v Air Band (combustion air supply adjustment) Filter Power Indicator Pressure Gauge Indicator Pressure Adjustment Screw Motor Air Figure 3 – Oil Burner (Back View Closed) Compressor Pre-Heater Control Electrodes (2) Oil Pre-Heater Block Circuit Board 240v Photo Eye Flame Sensor...
  • Page 9 Igniter Transformer Primary 240v Control 220v Oil Valve 240v Electrodes Burner Nozzle Motor 240v Flame Cone Figure 5 – Oil Burner (Front View) Oil Outlet Inlet Figure 6 –Oil Pump Diagram Installation, Operation, And Service Instructions...

  • Page 10: Oil Burner Technology

    Filter Internal Pump Filter 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...
  • Page 11  Igniter Transformer: (figure 3) Supplies high voltage to the electrodes generating electrical arc igniting the oil.  Oil Valve: (figure 5) energizes when burner is running and de-energizes when burner is not running eliminating bleed back of oil out of the Pre-heater block. ...
  • Page 12 IMPORTANT:  Power Indicator: (figure 3) Indicates when power is present at the burner.  Run Indicator: (figure 3) Indicates that the burner is ready for operation after the initial pre-heat time of approx. 5 minutes from initial power up. 1.

  • Page 13: Initial Start Procedure

    INITIAL START PROCEDURE 8. 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.
  • Page 14 --- Clean Suntec pump filter. Remove pump cover for access. (figure 13). CAUTION!-Be careful of gasket. --- Clean air compressor filter element. YEARLY --- Clean flue pipe stack-to loosen soot remove stack at top of heater and tap thoroughly. Then vacuum upper heat exchanger(s).
  • Page 15 Figure 10 – Electrode Adjustment Detail Electrodes Pre Heater Oil Block Nozzle Pre-Heater Control Card Thermocouple Figure 11 – Pre-Heater Block Detail (Removed From Burner for Clarity) Figure 12 – Combustion Chamber and Heat Exchanger Cleanout Door, Models OWH 250, 350, 500 Installation, Operation, And Service Instructions...
  • Page 16 Suntec Fuel Pump Remove 4 bolts for access to strainer filter. CAUTION must be careful not to destroy the inner gasket during removal of the housing Suntec Strainer Suntec Gasket Filter Figure 13 – Pump Strainer Filter Housing Spin-On Filter Pancake Filter Housing Figure 14 –...

  • Page 17: Troubleshooting

    TROUBLE SHOOTING Most Likely Less Likely Least Likely Symptom Cause Remedy 1. Heater shuts off Manual reset Requiring manual restart by reset button on. 2. Loss of prime overnight Vacuum air leak in fuel line Check all fuel connections. Tighten fittings. Won’t hold vacuum Plugged pump screen ...
  • Page 18 7. Heater rumbles and Pump setting wrong Pump not functioning properly-over firing. May need RPM excessive heat blow back readjust. Reset flame slightly less than ½ way down tube from flame vision port. combustion chamber. Use adjustment knob on pump motor. (See Figure 7).
  • Page 19 Omni Unit Heaters 150, 250, 350, 500 Fifteen (15) Year Limited Warranty Econo Heat (manufacturer) warrants to the purchaser of Unit Heaters listed above will be free from defects in materials and workmanship for the durations specified below, which duration begins on the date of delivery to the customer.
  • Page 20 Installation, Operation, And Service Instructions...

  • Page 21: Warranty Card

    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 ________________________...

This manual is also suitable for:

Owh-250Owh-350Owh-500

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