Burnham 20_PV_I manual Pilot Burner Location, Spark Gap Setting Flueway Cleaning

Models: 20_PV_I

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Table 7: Pilot Burner Location

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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Burnham 20_PV_I manual Pilot Burner Location, Spark Gap Setting Flueway Cleaning