Burnham 20_PV_I manual Pilot Burner Location, Spark Gap Setting

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Table 7: Pilot Burner Location

B o i l e r

M a i n B u r n e r w i t h

P i l o t B u r n e r L o c a t e d

B e t w e e n M a i n

M o d e l

6 0 ° P i l o t B r a c k e t *

B u r n e r s *

 

 

 

 

 

 

2 0 3 P V

1

1

& 2

 

 

 

 

2 0 4 P V

2

2

& 3

 

 

 

 

2 0 5 P V

3

3

& 4

 

 

 

 

2 0 6 P V

4

4

& 5

 

 

 

 

* M a i n b u r n e r s n u m b e r e d l e f t t o r i g h t a s v i e w e d f r o m front of boiler .

at rear of burner. See Figure 11. Slide burner over orifice.

7.Reconnect pilot gas supply, igniter/sensor cable, and ground wire. Reinstall Burner Access Panel. Reconnect Flame Rollout Switch wires.

G.Check operation. Follow Paragraphs D through O from Section VII: System Start-up.

H.Removal or replacement of pilot assembly or pilot assembly parts. If pilot assembly, sensor or pilot orifice need replacing, remove main burner with pilot using procedure described in Paragraph F.1.

1.To replace orifice.

a.Disconnect pilot tubing. Pilot orifices screw into Pilot Burner. Replace with Honeywell 388146NE (Natural Gas) or Honeywell 388146KP (LP/Propane).

b.Reconnect pilot tubing and check for leaks.

2.To adjust or check spark gap between electrode and hood on Honeywell Q348A intermittent pilot. See Figure 18.

a.Use round wire gauge to check spark gap.

b.Spark gap should be 1/8 inch for optimum performance.

3.To replace complete pilot assembly.

a.Remove two machine screws holding pilot burner to pilot bracket.

b.Disconnect pilot tubing.

c.Disconnect all other leads to pilot.

d.Select pilot assembly with identical model number, reconnect leads and pilot tubing. Resecure to pilot bracket.

4.Reinstall main burner following procedure described in Paragraph F.

Figure 18: Spark Gap Setting

Figure 19: Flueway Cleaning

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Contents Series 2PV 8141775R12-3/01 Price $3.00Table of Contents Elevation Views Pre-Installation II. Unpack Boiler Alternate method for boiler located within confinedIII. Water Piping and Trim Page Rated Input IV. Gas PipingConnect boiler gas valve to gas supply system Specific Gravity Correction Factors VentingFitting Equivalent Lengths General GuidelinesInstall Vent Connector Burnham Vent System ComponentsInstall Vent Pipe, General Horizontal Through Wall Vent InstallationVI. Electrical Recommendations for Thimble and Wall PenetrationMain Burner Installation VII. System Start-upGas Valve Pressure Tap Prepare to check operationCheck limit Adjust gas input rate to boiler Natural GasGas Flow Rate in Cubic Feet per Hour Operating Instructions Trouble Shooting Guide Page Page Avoid Breathing Fiber Particulates and Dust VIII. Service Clean Main Burners and FireboxSpark Gap Setting Pilot Burner LocationProcedure for Measuring Fan Suction Pressure Minimum Suction PressureIX. Repair Parts Burnham Corporation Regional OfficesSection Assembly Canopy/Blower AssemblyBase Assembly Group Manifold and Main Burners Pilot Burner and Gas Valve Jacket Page Vent Accessory Carton

20_PV_I specifications

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