Omni OWH-75 Installation, Operation And Service Instructions Download Page 1

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Waste Oil Fired Heater

Installation, operation and service instructions

OWH-75 120v Manual

EconoHeat • 5714 E. First Avenue • Spokane Valley, WA 99212 • 800.255.1363 • www.econoheat.com • Rev 01/2017

Summary of Contents for OWH-75

Page 1: ...Waste Oil Fired Heater Installation operation and service instructions OWH 75 120v Manual EconoHeat 5714 E First Avenue Spokane Valley WA 99212 800 255 1363 www econoheat com Rev 01 2017 ...

Page 2: ...nstallation Procedures Page 6 Stack Installation Page 7 Oil Supply Tubing Page 7 Wiring Page 8 Oil Burner Page 9 Oil Burner Technology Page 10 Initial Start Procedure Page 12 Maintenance Schedule Page 13 Figures 6 12 Page 14 Troubleshooting Page 17 OWH 75 Ten Year Limited Warranty Page 18 Warranty Card Page 20 ...

Page 3: ...eration 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 Specifications are subject to change without notice This heater was designed to be a primary or auxiliary heat source but not the only source of heat And provide economical disposal of waste oil Proper operation de...

Page 4: ...intenance Requirements Identical to any gas or oil furnace without adequate draft over the fire the combustion gases cannot escape the furnaces 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 accumulate...

Page 5: ...me without notice in materials specifications and models or to discontinue models 2 These appliances are designed for commercial or industrial use only Installation and use of this waste oil burning appliance shall be in accordance with the Standard for the Installation of Oil Burning Equipment ANS NFPA 31 1987 and National Electric Code ANSI NFPA 70 1990 and the requirements of the inspection aut...

Page 6: ...Page 6 OMNI by EconoHeat Installation Procedures Figure 1 Installation Diagram ...

Page 7: ...ved Oil Supply Tubing 1 Use ONLY 1 2 or 3 4 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 pipe fit tings 2 Keep suction line approximately 6 from bottom of oil tank to prevent suction of sludge Drain accumulated sludge and water from tank periodically 3 Use only an inside oil storage tank to suppl...

Page 8: ...circuit 20 amp protection using 12 gauge wire Connect power line to black wire and all whites NEUTRAL or COMMON together IMPORTANT Connect ground wire to ground mounting point in main junction box green screw 2 Wire low voltage thermostat into T marked terminals on oil primary control on burner Box on burner gun assembly with red reset button figure 3 ...

Page 9: ...1990 and the requirements of the inspection authorities having jurisdiction WARNING Igniter Transformer Air Band combustion air supply adjustment Power Indicator Run Indicator Figure 3 Oil Burner Back View Closed Oil Primary Control Air Filter Air Pressure Gauge Air Pressure Adjustment Screw Motor Air Compressor Figure 4 Oil Burner Back View Opened Electrical Terminal Block Pre Heater Control Circ...

Page 10: ...r Motor Compressor Flame Cone Nozzle Electrodes Figure 5 Oil Burner Front View Figure 6 Oil Pump Diagram Oil Inlet Oil Outlet Mounting Flange 3 or 4 bolt universal pattern Vanes Carbon Plate Remove Cover Filter Oil Primer Switch Inline Breaker ...

Page 11: ...s 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 providing a very efficient and thorough burn of the waste oil Oil Tank Filter Oil Preheater Inside Burner Suction Line Atomization Through Low Pressure Preheat Air Induction At Nozzle Internal Pump Filter Oil...

Page 12: ...he electrodes when door is closed Pre Heater Control Circuit Board figure 9 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 figure 9 Provides continuous high voltage electrica...

Page 13: ...tat terminals on the Oil Primary Control figure 3 Once the burner is running temporarily jump the F terminals on the Oil Primary not before burner tries to run or operate This will allow the burner to run during the pump priming process don t forget to remove jumpers when primed 5 Priming the oil pump Open bleeder valve one turn until all air is expelled figure 4 This may need to be done twice to ...

Page 14: ...ly requires the removal of the access panel allowing simple entry to the combustion chamber and heat exchanger s to vacuum out the accumulated ash soot hepa filter recommended figure 10 below Check Suntec pump filter Remove pump cover for access figure 11 below CAUTION Be careful of gasket clean if needed YEARLY Clean flue pipe stack to loosen soot remove stack at top of heater and tap thoroughly ...

Page 15: ...TO ENDCONE BURNER TUBE Tip of nozzle must be ahead of inside radius of end cone If nozzle is behind inside radius of end cone coking will occur and end cone can become clogged figure 8 below IMPORTANT NOTE be sure nozzle is centered if nozzle is higher than center press nozzle down to bottom out pre heater stand To adjust remove burner from cabinet figure 6 below loosen Preheat Sink securing nut a...

Page 16: ...rodes Nozzle Thermocouple Figure 11 Pre Heater Block Detail Removed From Burner for Clarity Figure 10 Electrode Adjustment Detail When cleaning inspect all three pieces thoroughly When disassembling and reassembling nozzle keep facing up as shown Figure 9 Nozzle Assembly Detail ...

Page 17: ...NI by EconoHeat Figure 13 Oil Filter Pancake Style Filter Remove 4 bolts for access to strainer filter CAUTION must be careful not to destroy the inner gasket during removal of the housing Figure 12 Pump Strainer ...

Page 18: ...nd replace either if needed Figure 10 Back draft in combustion chamber may be present Check draft up flue pipe over fire at vision port Air band open too far Close air band while viewing flame open air band slowly until combustion chamber is clear not orange 5 Heater cycles frequently Heater over firing Inadequate Investigate and locate reason for over firing Check and clean end cone without therm...

Page 19: ... in materials and workmanship for the durations specified below which duration begins on the date of delivery to the customer Customer is responsible for maintaining proof of date of delivery If return is deemed necessary for warranty evaluation and determination of repair or replacement unit heater is to be sent to the factory with freight prepaid EconoHeat reserves the right to determine appropr...

Page 20: ...ng cost unless prior authorization in writing has been obtained NOTE Combustion Chamber Warranty is specific to material and workmanship Workmanship means EconoHeat warranties the welds are good and will hold Material means they will not corrode through due to sulfur in the ash that accumulates during operation Warranty does not apply to units that experience overheating stress cracks These are no...

Page 21: ... out tear off and return to manufacturer within sixty 60 days of purchase or warranty will not be valid Please print or type Date of Purchase Serial Model Customer Company Name Address City State Zip Code Dealer Address City State Zip Code Installed By ...

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