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By
WASTE OIL FIRED BOILER
OWB Series
Installation, Operation, And Service Instructions
Manual
Thank you and congratulations on your purchase of an Omni Waste Oil Fired Boiler. 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
100270 Rev A3
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TABLE OF CONTENTS WASTE OIL BURNER........................................................................5 OIL BURNER TECHNOLOGY ..........................................................8 OIL BURNER/PUMP TECHNICAL DATA.......................................10 BOILER SPECIFICATIONS ...............................................................11 STANDARD EQUIPMENT.................................................................12 COMBUSTION AIR SUPPLY ..................
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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 combustib
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IMPORTANT NOTICE TO OWNER AND INSTALLER To enjoy the long term benefits of burning your used oil in an Omni Waste Oil Boiler, it is necessary to become familiar with the correct installation operation and maintenance of your new boiler. Before installing or operating this appliance, make sure you read and understand this manual. IMPROPER INSTALLATION OR LACK OF MAINTENANCE WILL VOID THE WARRANTY ------------WARNING------------ Improper Installation, adjustment, alteration se
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WASTE OIL BURNER 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 authori
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Pre-Heater Control Circuit Board Oil Pre-Heater Block Air Muffler/Filter Photo Eye Flame Sensor Electrical Terminal Block Transformer Igniter Springs Heater Electrical Schematic Figure 2 – Oil Burner (Back View Opened) Electrodes Oil Valve Nozzle Burner Motor Flame Cone Figure 3 – Oil Burner (Front View) 6 Installation, Operation, And Service Instructions
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Oil Outlet Oil Inlet Figure 4 –Oil Pump Diagram Figure 5 –Oil Pump Assembly Installation, Operation, And Service Instructions 7
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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 spr
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• 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 burn
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OIL BURNER/PUMP 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
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BOILER SPECIFICATIONS Figure 6 –Boiler (OWB-35 & OWB-50) OWB series boilers are three pass Scotch Marine design with fully water backed transfer surfaces. Boilers are designed for use in forced hot water heating systems. Heating is supplied by a Waste Oil Burner that burns all petroleum products any weight combination up to SAE 90W as well as fuel oils. Boiler–Burner units operate with no less than 0 to –0.01WC over fire and may be vented using a conventional chimney. I
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CODE REQUIREMENTS Installations must comply with all state, local, and utility codes, laws, regulations, and ordinances, and CSA standard B139. Where required by the authority having jurisdiction, the installation must conform to American society of Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Boilers, No. CSD- 1. All electrical wiring must be done in accordance with the National Electrical codes latest edition and all state and local
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9-3/8” 2-1/2 M.P.T. Supply Connection Centerline Of Burner Plate 36” 29-1/2” 20” 17” 3/4” 4” L 8” 33” Approx. 14” 2-1/2 F.P.T. Return Connection OWB-35 and OWB-50 Specifications 1-1/2” Supply Connection 26” Circulator 21-1/2” 15-1/2” 12-1/4” L 1-1/2” 25” Return Approx. 14” Connection OWB-9, OWB-15, and OWB-25 Specifications NET NET Approx. Vent Max. Output Dim Water Boiler Burner Input Rating Rating Dry Connect Water Capacity “L” Content Model GPH BTU’s
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COMBUSTION AIR SUPPLY WARNING Failure to provide an adequate supply of fresh air for combustion will result in hazardous operating conditions. Note If you use a fireplace or a kitchen or bathroom exhaust fan, you should install an outside air intake. These devices will rob the boiler and water heater of combustion air. 1. In unconfined spaces in buildings infiltration may be adequate to provide air for combustion and ventilation. However, in buildings of unusually tight
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(b) All Air From Outdoors: The confined space shall be provided with two permanent openings, one within 12 inches of the top and another within 12 inches of the bottom of the enclosure. The openings shall communicate directly, or by ducts, with the outdoors or crawl or attic spaces which communicate freely with the outdoors. Direct To Outdoors, See Figure 8. Chimney Ventallation Louvers (each end of attic) Note: The inlet Outlet Air and outlet air openings shall each hav
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NOTE All wall openings directly to outdoors must be screened to prevent entry by birds or small animals. With Horizontal Ducts See Figure 10. Note: Each air duct opening Chimney shall have a free area of not less than one square inch per 2,000 Btu per hour of the total input rating of all equipment in the enclosure.* Outlet Air Duct Inlet Air Duct *If the equipment room is located against an outside wall and the air openings communicate directly with the outdoor
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3. Breeching • See Table 2 for minimum recommended breeching and chimney sizes. • Keep run boiler to chimney as short as possible. • Use as few elbows as possible. • Slope upward towards chimney at not less than 1/4” per foot. • Use a sealed-in thimble for the chimney connection. • Connect together all sections and/or fittings with sheet metal screws and seal with silicone sealant. 4. When more than one appliance is connected to the same chimney, the chimney’s internal cross-sectional
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SIDE-WALL VENTING---IMPORTANT NOTE Two problems arise when side wall venting any oil appliance; 1. There is sometimes an accelerated rate at which soot builds up on the cad-cell, spinner, etc. 2. There is the potential for severe soot damage to the side of the structure in the event that the boiler operates at a high smoke level. This can happen for many reasons, some of which are out of the control of both the installer and appliance manufacturer. Econo Heat recommends the us
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INSTALLING THE BOILER Placing The Boiler (OWB-9 – OWB-25) 1. Move the boiler as close as possible to its final location in the crate. 2. Remove the two lag screws holding the rear feet to the skid. 3. Remove the front jacket panel. Cut the band holding the front of the boiler to the skid. 4. Move the boiler into the final position. 5. Waste Oil Piping: 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
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Pitch Up 1/4” per foot Barometric Draft Control 18” Straight Run Preferred Figure 12. INSTALLING THE BOILER CONTROLS AND ACCESSORIES 1. Accessories for Boilers OWB-9, OWB-15, and OWB-25: a) Take the L8148A Aquastat relay, the well, the pressure relief valve with pipe nipple and the temperature/pressure gauge from the large carton which was packed in the wirebound crate. Install in tappings provided at the top rear of the boiler as shown in Figure 13. Figure
