Omni OWB-25 Installation, Operation And Service Instructions Download Page 38

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Page 38

OMNI by EconoHeat

Pre Heater Oil Block

Pre-Heater
Control Card

Electrodes

Nozzle

Thermocouple

Figure 39 –

Pre-Heater Block Detail (Removed From Burner for Clarity)

Snap Switch

Figure 41 –

Oil Filter (Spin-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.

Figure 40 –

Pump Strainer

Summary of Contents for OWB-25

Page 1: ...Waste Oil Fired Boiler Installation operation and service instructions OWB 25 OWB 35 OWB 50 120v Manual EconoHeat 5714 E First Avenue Spokane Valley WA 99212 800 255 1363 www econoheat com Rev 09 2015...

Page 2: ...Combustion Air Supply Page 13 Chimney Vent Requirements Page 14 Installation Page 15 Water System Piping Page 19 Burner Mounting Page 26 Boiler Jacket Assembly Page 27 Boiler Tube Insert Assembly Pag...

Page 3: ...cessive 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 boiler The...

Page 4: ...ombustion gases cannot escape the furnaces The flame will lengthen resulting in an overheated combustion chamber Even if the boiler is installed correctly and adequate draft achieved a flue passage bl...

Page 5: ...990 and the requirements of the inspection authorities having jurisdiction WARNING Igniter Transformer Air Band combustion air supply adjustment Power Indicator Run Indicator Figure 1 Oil Burner Back...

Page 6: ...Motor Compressor Flame Cone Nozzle Electrodes Figure 3 Oil Burner Front View Figure 4 Oil Pump Diagram Oil Inlet Oil Outlet Mounting Flange 3 or 4 bolt universal pattern Vanes Carbon Plate Remove Cove...

Page 7: ...ste oil enters into the Oil Pre Heater Block figure 4 and is pre heated to operating thermo set point then compressed air from the air compressor figure 3 is mixed with the oil prior to spraying out t...

Page 8: ...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 set point or...

Page 9: ...and Oil Pump 10 5 Amps Electrical Operating Consumption Burner Only 970 Watts Electrical Operating Consumption Burner and Oil Pump 1 212 Watts Weight 36 5 Lbs Oil Primary 0 2 Amps Oil Valve 0 075 Amp...

Page 10: ...1 Net ratings shown are based on piping and pick up allowance of 1 15 2 Net ratings in square feet are base on 170 Fahrenheit average water temperature in radiators For higher water temperatures selec...

Page 11: ...X X Low Water Cut off Control X X X Manual Reset High Limit Aquastat Control L4006E X X X 10 Damper X X Temperature Pressure Gauge X X X Important Code Requirements Installations must comply with all...

Page 12: ...ls Boiler Burner units operate with no less than 0 01WC or greater over fire and may be vented using a conventional chimney Relief Valve Manual Reset Limit Modulating Agustat Tapping Supply Manifold P...

Page 13: ...ating directly with another room or rooms of sufficient volume that the total volume of all spaces meets the criteria for unconfined space One opening must be within 12 inches of the bottom of the enc...

Page 14: ...all equipment in the enclosure If the equipment room is located against an outside wall and the air openings communicate directly with the outdoors each opening shall have a free area of not less tha...

Page 15: ...oil fired unit shall be connected to a flue having sufficient draft at all times to assure safe proper operation of the unit SIDE WALL VENTING IMPORTANT NOTE Two problems arise when side wall venting...

Page 16: ...nto the final position 5 Waste Oil Piping USE ONLY 3 8 nominal ID copper piping with flare fittings only on the oil suction from the tank to the oil pump and oil pump to burner DO NOT use ferrule fitt...

Page 17: ...connection Breaching should not project into the chimney beyond the inside wall of the chimney Connect the breaching to the chimney with a thimble or slip joint to facilitate cleaning See Figure 12 P...

Page 18: ...oiler does not include the return manifold The installer must make up his own manifold to connect to the 2 x 1 1 4 inch bushing which is supplied in the boiler supply and return ports and must provide...

Page 19: ...local codes 3 Additional circulating pumps or zone valves may also be required if the system is to be multi zone or if it is to include a domestic hot water storage tank with coil 4 There are two type...

Page 20: ...Circulation Pump Return from System Fill Valve Cold Water Feed Pressure Relief Valve 3 4 in Shutoff Valve Supply to System Drain Cock Figure 17 Discharge Type Expansion Tank Circulation Pump Purger C...

Page 21: ...in each zone and adjust so that flow is about the same in each zone See Figure 18 2 Multiple zoning with circulation Each pump will require a separate relay Honeywell R845A or White Rodgers 829A 845 o...

Page 22: ...d such that the return water temperature will be high enough at all times to prevent condensation See Figure 20 NOTE Bypass A shown in Figure 20 below should not exceed 12 inches in length If it is no...

Page 23: ...ing zones there is less likelihood that all zones will call for heat at once and require full boiler output for heating Because the tank is usually close to the boiler the pressure drop through the co...

Page 24: ...c hot water priority can be provided as shown in Wiring Section Figure 27 8 Combination heating cooling system with chilled water The chiller must be piped in parallel with the boiler and isolation va...

Page 25: ...d See Figure 27 Figure 27 11 Multiple boiler piping reverse return flow with blend pump See Figure 28 Figure 28 Air Separator Backflow Prevention Amtrol 720 Air Eliminator or Equal From City Water Sup...

Page 26: ...he burner is field installed the installer must fill in the space between the burner blast tube and the insulation block on the inside of the burner door with refractory mix provided Figure 29 OWB 25...

Page 27: ...our extension setscrews 43 protrude through the insulation Attach rear jacket panels 36 and 38 to the two extension screws 43 using the M6x10 pan head screws Screw the rear panels together in the cent...

Page 28: ...de panel is attached to the hinge using 10 24x3 4 screws 21 The front end of the left side panel is also attached to the front jacket mounting bracket 23 using 10 24x3 4 screws The rear of both the le...

Page 29: ...l Stainless Steel Tube Insert with external stitch weld touching first water section high point of casting and the dam located at the 6 o clock position bottom of boiler When boiler door is closed sta...

Page 30: ...ergizing the circulator for that zone At the same time electrical continuity is created between terminals 5 and 6 on the R845A creating a current path from terminal T to T on the L8148A Assuming that...

Page 31: ...tch BLK BLK WHT WHT RED WHT WHT WHT RED BLU RED Power Plug Looking at Terminal Side BLK Oil Valve BLK GRN Electrical Box Looking at Socket Side Burner Assembly Thermostat Circulator Honeywell L8148A A...

Page 32: ...WHT WHT RED BLU RED Power Plug Looking at Terminal Side BLK Oil Valve BLK GRN Power Socket Electrical Box Looking at Socket Side Burner Assembly N H Oil Pump WHT BLK WHT YEL Service Switch Fused Disco...

Page 33: ...diagram zone wiring using Honeywell V8043F valves factory boiler wiring not shown here see figure 32 or 33 Figure 35 Wiring diagram circulator zone wiring using Honeywell R845A valves factory boiler...

Page 34: ...cocks so water can exit the system through a hose as in 1 above When the system seems to be full and free of air close the drain cock and the shutoff valve on the boiler supply pipe leaving the manual...

Page 35: ...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 5 Priming the oil pump Open bleeder valve one turn unti...

Page 36: ...ack to loosen soot remove stack at top of heater and tap thoroughly Then vacuum upper heat exchanger s Inspect electrode adjustment figure 10 below Due to erosion adjustment may change Replace nozzle...

Page 37: ...cal lead restore the power and turn burner on If a boiler is to be shut down and taken out of service for a period of time the boiler should be cleaned immediately upon shut down while the flue ways a...

Page 38: ...Figure 39 Pre Heater Block Detail Removed From Burner for Clarity Snap Switch Figure 41 Oil Filter Spin On Filter above Pancake Style Filter below Remove 4 bolts for access to strainer filter CAUTION...

Page 39: ...th nozzle of identical make and style Check electrodes for proper gap and for soot or oil deposits Also check porcelains for cracks Close burner door and re connect electric cord Press reset button wh...

Page 40: ...tion and determination of repair or replacement unit heater is to be sent to the factory with freight prepaid EconoHeat reserves the right to determine appropriate action for repair or replacement No...

Page 41: ...ation or liability that is not in accordance with above warranty EconoHeat is not responsible for any labor and or shipping cost unless prior authorization in writing has been obtained Warranty Card P...

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