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Installation, Operation, And Service Instructions

 

  

25 

 

WARNING 

DO NOT fire boiler without water or boiler sections will overheat and eventually crack 

 

 

 

 
 
 
 
 

6.  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.  Pressurizing the line with oil in it can help to locate leaks. 

7.  During the initial power up process the burner is locked out from energizing until the oil has 

been properly pre-heated to operating thermo setpoint, approx 3 to 5 minute duration.  Once 
the oil has been pre-heated, power is then applied to burner componenets and oil pump. 

8.  Making sure 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 minutes. Jump the “T” terminals on the Oil Primary (Figure 1).  
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. 

9.  Priming the oil pump:  Open bleeder valve one turn until all air is expelled (Figure 4).  This 

may need to be done twice to 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. 

10.  Adjust air supply of integrated air compressor to 8-12 P.S.I.  This is factory preset, however, 

due to freight handling settings may be compromised.   

11.  Combustion air band (Figure1) should be open approximately 1/2” or until flame is clear 

yellow, not orange.  Opening the air band too far may cause delayed in starting or even 
prevent the flame from starting. 

 
 
 
 
 
Generally no water treatment will be required.  Care should be taken to ensure that the 
system does not lose water from leaks, or continual relief valve operation since continual 
make-up water will reduce boiler life. 
 
 
 
 
 
Where freeze protection is required use antifreeze made especially for hydronic systems 
such as inhibited Propylene Glycol.  DO NOT use automotive type antifreeze.  Follow 
antifreeze manufacturer’s directions for quantity.  A 50% solution provides protection to 
–30 degree F.   For boiler water content  see page 11. 
 
 
 

WATER TREATMENT 

FREEZE PROTECTION 

WASTE OIL BURNER STARTUP 

Summary of Contents for OWB-15

Page 1: ...with proper filtration to the inside supply tank is acceptable 6 The fuel pump included with burner is to be mounted at tank level or below PUMP MUST BE MOUNTED HORIZONTAL AND LOCATED NEXT TO WASTE O...

Page 2: ...ked in the wirebound crate Install in tappings provided at the top rear of the boiler as shown in Figure 13 Figure 13 b Take the boiler drain from the same carton and connect it to the 3 4 inch openin...

Page 3: ...he 2 x 1 1 4 inch bushing which is supplied in the boiler supply and return ports and must provide his own boiler drain and circulating pump 1 Accessories for Boilers OWB 35 and OWB 50 Figure 14 Suppl...

Page 4: ...em is to comply with ASME code 1 Backflow Preventer Required by many State and local codes 3 Additional circulating pumps or zone valves may also be required if the system is to be multi zone or if it...

Page 5: ...e pressure reducing fill valve may be piped with 1 2 inch pipe Figure 17 Closed Type Expansion Tank Supply to System Shutoff Valve Fill Valve Cold Water Feed Return From System Circulation Pump Drain...

Page 6: ...piped to a drain or must terminate 6 above floor to eliminate damage to the structure or personal injury It must not be piped to a point where freezing might occur 1 MULTIPLE ZOINING WITH ZONE VALVES...

Page 7: ...drop below about 135 Degree F for an extended period of time Return water temperatures of 130 Degree F or lower will cause condensation on the exterior surface of the heat exchanger and corrosion and...

Page 8: ...systems that employ outdoor reset control present a potential problem with low return water temperatures and condensation The boiler must be protected from condensation in such cases by using a by pa...

Page 9: ...r output is available to recover the storage tank quickly and should be used where supply of domestic hot water on demand is critical For this application use a full throated valve with a minimum pres...

Page 10: ...t for heating Because the tank is usually close to the boiler the pressure drop through the coil circuit will generally be less than through a heating zone circuit which will provide some measure of p...

Page 11: ...gravity circulation Install a balancing valve in each zone and adjust so that flow in each zone is about the same see Figure 24 While this basic system does not provide priority for domestic hot water...

Page 12: ...iler shall be not less than 1 8 GPM for each 100 000 BTU HR of gross boiler output Size blend pump accordingly See Table 3 Blend Pump Primary Secondary Pump Boiler Model GPM GPM OWB 9 OWB 15 OWB 25 OW...

Page 13: ...e 27 Blend Pump Check Valve System Supply System Circulator Pressure Reduction Valve Backflow Preventer From City Water Supply Expansion Tank System Return Amtrol 720 Air Eliminator or Equal To Size B...

Page 14: ...REVERSE RETURN FLOW WITH BLEND PUMP Figure 28 Blend Pump Check Valve System Supply System Circulator Pressure Reduction Valve Backflow Preventer From City Water Supply Expansion Tank System Return Amt...

Page 15: ...t fill in the space between the burner blast tube and the insulation block on the inside of the burner door with refractory mix provided Burner Mounting Figure 29 OWB 35 and OWB 50 Burner Mounting Boi...

Page 16: ...on top of wraparound insulation This will provide double thick insulation on top of the boiler block 4 Remove flue collector clean out covers 62 5 Push the two smaller pieces of insulation 60 onto th...

Page 17: ...WB 9 OWB 15 and OWB 25 Jacket Installation Instructions 1 Attach the rear jacket mounting brackets 7 to rear tie rod ends on back of boiler using the 12mm nut 9 provided on the end of each tie rod 2 A...

Page 18: ...nel 5 using four 10x1 2 sheet metal screws 9 Attach the flue collector cover 4 using four 10x 1 2 sheet metal screws 10 Press the door switch 16 into the door switch bracket 17 Connect the door switch...

Page 19: ...C2 on the L8148A are not used A DPST Honeywell RA832A may be substituted in place of the R845A using the X and X terminals in place of the 5 and 6 terminals on a R845A A call for heat from any thermos...

Page 20: ...nnections so that any zone valve that opens will also start the circulator and fire the boiler assuming the high limit is not open Zone valve terminal TH TR has no internal connection on the zone valv...

Page 21: ...ATER BLOCK Fuse Power Switch BLK BLK WHT WHT RED WHT 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 Th...

Page 22: ...K BLK WHT WHT RED WHT 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 Serv...

Page 23: ...23 Figure 35 WIRING DIAGRAM ZONE WIRING USING HONEYWELL V8043F VALVES FACTORY BOILER WIRING NOT SHOWN SEE FIGURE 33 OR 34 Figure 36 WIRING DIAGRAM CIRCULATOR ZONE WIRING USING HONEYWELL R845A S FACTO...

Page 24: ...n exit the system through a hose as in 1 above When 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 valve on the cold wa...

Page 25: ...Oil Primary This will allow the burner to run during the pump priming process 9 Priming the oil pump Open bleeder valve one turn until all air is expelled Figure 4 This may need to be done twice to i...

Page 26: ...ng connections to ensure there are no flue gas leaks Seal any leaks found with High Temperature Silicone Sealant 6 Check flue gas temperature at the test point in the breeching If gross flue gas tempe...

Page 27: ...ion And Service Instructions 27 Figure 37 Electrode Adjusment Diagram Figure 38 Nozzle Assembly Detail When cleaning inspect all three pieces thoroughly When disassembling and reassembling nozzle keep...

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