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10 

 

   

Installation, Operation, And Service Instructions 

 

 
Figure 7

 

–Oil Pump Assembly 

 

 

 

 

 

 

 

Oil Tank

Filter

Flow Control

Oil Pump

Internal Pump Filter

Air Compressor

On Burner

Oil Preheater

Inside Burner

Air Line to Preheater

Mixes with Oil at Nozzle

Suction Line

Pressure Line

Atomization Through Low Pressure

Preheat & Air Induction At Nozzle

Air 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 
the  Oil  Pre-Heater  Block  (figure  4)  and  is  pre-heated  to  operating  thermo  setpoint,  then 
compressed  air  from  the  air  compressor  (figure  3)  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 (figure 5) 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 (figure 5) providing a very efficient and thorough burn of the waste oil. 

Burner Components 

OIL BURNER TECHNOLOGY

 

Oil Shut-off 
Valve- Eliminates 
start delays due to 
possible drain 
back 

Spin-On Filter 

Oil Primer Switch 

Adjustable Motor 
Speed- Initial set up 
only- Once set, no 
adjustment needed 
thereafter 

Oil Flow Control Supply Pump has the 
ability to control flame even when various 
viscosities are used- furnace or stove oil to 90 
weight straight- flame remains stable 

Inline Breaker 

Summary of Contents for OWH-150

Page 1: ...tructions Manual 240v 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 man...

Page 2: ...n 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 opera...

Page 3: ...eneral Maintenance 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 overhea...

Page 4: ...herein are based on the latest information available at the time of publication approval Econo Heat reserves the right to make changes at any time without notice in materials specifications and models...

Page 5: ...ack 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 The over fire draft should be a mini...

Page 6: ...to the inside supply tank is acceptable and available from Econo Heat 4 The fuel supply pump included with heater is to be mounted at tank level or below figure 1 This pump turns slowly requiring a nu...

Page 7: ...al common white to white 3 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 All unit heaters are designed...

Page 8: ...lock 240v Photo Eye Flame Sensor Transformer Igniter Springs 240v Pre Heater Control Circuit Board Electrical Terminal Block Igniter Transformer 240v Air Band combustion air supply adjustment Oil Prim...

Page 9: ...on And Service Instructions 9 Figure 5 Oil Burner Front View Figure 6 Oil Pump Diagram Oil Valve 240v Flame Cone Nozzle Electrodes Burner Motor 240v Oil Inlet Oil Outlet Igniter Transformer 240v Oil P...

Page 10: ...air compressor figure 3 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...

Page 11: ...trol Circuit Board figure 4 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 setpoin...

Page 12: ...re 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 minute...

Page 13: ...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 13...

Page 14: ...hould be check periodically and at time of installation to be sure they are set as noted in the following dimensional drawing Swing burner clean out door back for inspection figure 5 10 and 11 CAUTION...

Page 15: ...10 Electrode Adjustment Detail 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 Nozzle Electrodes...

Page 16: ...in On Filter above Pancake Style Filter below Remove 4 bolts for access to strainer filter CAUTION must be careful not to destroy the inner gasket during removal of the housing Filter Housing Spin On...

Page 17: ...replace Check filter clean if needed 4 Reduced air pressure Gauge may be bad Replace gauge cannot increase Intake filter muffler is plugged Remove Clean with carburetor cleaner with dust or dirt dry t...

Page 18: ...aft Flame end Swing open burner door and clean ash build up from flame Need to reset primary cone may have ash end cone See Figure 5 8 Flame too small Increase pump motor speed See Figure 7 9 Proper d...

Page 19: ...rated or has been misused 5 Wiring not in accordance with diagram furnished with unit heater 6 Unit heater is operated in the presence of chlorinated vapors 7 Air through unit heater is not in accorda...

Page 20: ...20 Installation Operation And Service Instructions...

Page 21: ...___ Customer Name_____________________________________________________________________ Address____________________________________________________________________________ City ________________________...

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