Dunkirk Excelsior EXB Series Supplemental Instructions Download Page 1

SUPPLEMENTAL INSTRUCTIONS:

DIRECT VENT

INSTRUCTIONS FOR HIGH EFFICIENCY OIL-FIRED

HOT WATER BOILER

Direct Venting Of Oil Fired Boilers ..................................................................................... 2
Vent Terminal Locations ................................................................................................... 3
Vent Terminal Installation ................................................................................................ 4
Intake Air Pipe Installation ............................................................................................... 5
Vent Pipe Installation ...................................................................................................... 6
Blocked Vent Safety Shutoff System .................................................................................. 7
Sequence Of Operation  ................................................................................................... 8
Final Check Out .............................................................................................................. 9
Burner Settings Tables .................................................................................................. 10
Burner Settings Tables .................................................................................................. 11
Wiring Diagrams ........................................................................................................... 12
Operation And Troubleshooting ....................................................................................... 14

 P/N 240009355, Rev. C [11/15/2015]

Information contained in this manual pertains to direct vent 

boilers equipped with manufacturer installed blocked vent 

safety control system (pressure switch).

Keep area around vent terminal free of snow, ice, and 

debris.

 

 WARNING

Installations of venting shall be done only by a 

qualified expert and in accordance with these 

instructions. Venting a boiler or any other oil 

appliance with improper methods or materials may 

result in serious injury or death due to fire or to 

asphyxiation from poisonous gases such as carbon 

monoxide which is odorless and invisible.

!

  

Summary of Contents for Excelsior EXB Series

Page 1: ...d Troubleshooting 14 P N 240009355 Rev C 11 15 2015 Information contained in this manual pertains to direct vent boilers equipped with manufacturer installed blocked vent safety control system pressur...

Page 2: ...See Table 1 for approved venting Oil Burners Beckett NX and Riello s 40BF series Oil burners are certi fied for venting through the wall using ducted outdoor air for combustion Standard Beckett AFG Se...

Page 3: ...3 P N 240009355 Rev C 11 15 2015 D E M C J C B F K Forced air inlet C C Figure 2 Vent Terminal Locations Canada Figure 3 Vent Terminal Location USA VENT TERMINAL LOCATIONS...

Page 4: ...tion Cut a 6 1 2 diameter hole through the wall Remove Intake Air Sleeve from Terminal Insert Terminal through the wall from outside secure with 4 screws to the wall and seal to wall with weatherproof...

Page 5: ...Riello 40BF Burner 4 inch C Vent single wall galvanized 4 inch Rigid Aluminum pipe 0 030 wall thickness Use 4 inch pipe from the terminal to appliance Reduce to 3 inch pipe to attach to burner inlet...

Page 6: ...appliance adapter Fit adapter to vent by threading it counter clockwise unit it stops Insure joint is not cross threaded Tighten gear clamp where provided on outer cover See figures 7 and 9 8 Apply mi...

Page 7: ...pump body Use Riello pressure gauge or adapter Further adjustments must be made with burner cover in place by unscrewing plug on cover Turn screw clockwise to increase combustion air or counter clock...

Page 8: ...splay 10 Boiler remains idle until next call for heat Riello 40BF 1 Room temperature drops thermostat calls for heat 2 Pre purge begins lasting 5 to 15 seconds BVS is energized 3 If flue is clear pres...

Page 9: ...ain electrical panel 2 Where Boiler switch is located and switch on and off positions if not obvious 3 Where oil shut off valve from oil storage tank is located 4 To keep area around vent terminal fre...

Page 10: ...ELIMINARY BURNER SETTINGS Boiler Model Head Type Insertion Depth Firing Rate GPH Combus tion liner Nozzle Mfr Nozzle Type Pump Pressure PSI Air Setting Pressure Switch Setpoint Rated AFUE Efficiency 4...

Page 11: ...1 4 0 0 25 WC 85 0 4110 Standard 1 75 1 10 Oval Delavan 1 00x90B 125 2 5 0 0 25 WC 84 0 5100 Standard 2 75 1 00 None Delavan 0 75x60B 175 1 5 0 0 80 WC 86 5 5115 Standard 1 75 1 15 None Delavan 1 00x8...

Page 12: ...E ORANGE WHITE BLUE WHITE WHITE BLACK RED WHITE YELLOW VIOLET Figure 11 Beckett NX With Blocked Flue Pressure Switch Safety Figure 12 Wiring Diagram Beckett NX With GenisysTM 7505 15 Seconds pre purge...

Page 13: ...5 Figure 13 Riello Wiring Diagram With Post Purge Timer And Blocked Flue Pressure Switch Safety If a neutral or ground lead is attached to terminal 4 the CONTROL BOX on the burner will be damaged shou...

Page 14: ...urned off III Indicator light flashes at Hz 2 seconds on 2 seconds off IV Returns to Idle mode at end of Recycle mode Call for heat is satisfied 1 Oil valve circuit is de energized and valve shuts off...

Page 15: ...check If indicator light does not turn off remove cad cell lead wires from Aquastat and recheck If indicator light is still on replace the Aquastat control If the indicator light turns off replace cad...

Page 16: ...tage power and open line switch Unplug cad cell and clean cad cell face with soft clothe Check sighting for clear view of flame Replace cad cell in socket Reconnect line voltage power and close line s...

Page 17: ...e tubes for proper connection or possible obstructions Check venting for blockage Check combustion air intake for blockage Check pressure switch operation Low oil pump pressure Connect pressure gauge...

Page 18: ...gainst measured amperage draw Increase heat anticipator setting if necessary If the thermostat is being influenced by drafts sunlight duct work etc relocate to more suitable location Too much smoke In...

Page 19: ...d voltage 42 52 Vac between terminals 3 and 7 Ensure good contact between control box spades and sub base terminals Defective control box Replace Motor does not run Verify electrical connections Check...

Page 20: ...or seeing light before trial for ignition Coil wires on terminals 1 and 2 or 1 and 8 reversed Open coil circuit terminals 2 and 8 Open coil circuit terminal 1 Defective 42 52 Vac supply terminals 3 a...

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