Burnham Series 2B manual Burner 40mm Burner, Pilot Burner Location

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8.Hold burner at throat. Lift front of burner to clear orifice. Burner which holds pilot can only be removed by lifting the burner adjacent to its right first.

1" Burner

40mm Burner

Figure 30: Burner Cleaning and Installation

9.Brush top of burners with a soft bristle brush, see

Figure 30. Vacuum burners. Check orifices to see that drilled passageways are free of lint or dirt.

10.Vacuum tip of Pilot Burner.

B.Clean Firebox by vacuuming. Exercise care not to disturb insulation inside the base.

C.Install burners by reversing procedure used to remove burners. Make sure burner with pilot assembly is in same location as original installation - see Table 8.

Check burners to see that they are located properly in slot at rear of burner tray, see Figure 30. Reinstall injection shield assembly (40mm burners only, where used) and burner access panel.

Reconnect flame roll-out switch wires, pilot gas supply, thermocouple lead or pilot lead.

D.Check main burner and Pilot flames, see procedure Section II Operating Instructions, paragraphs 5 and 6.

5.Check all control and damper operation annually see procedure in Section II Operating Instructions, paragraphs 7 through 10.

6.Removal or replacement of pilot assembly or pilot assembly parts

If pilot assembly, thermocouple or pilot orifice need replacing, remove main burner with pilot using procedure described in paragraph 4.

A.To replace orifice:

1.Disconnect pilot tubing. The Honeywell Q350 pilot orifices are insert type retained by the compression fitting. The Honeywell Q327 and Q348A pilot orifices are spud type screwed into pilot burner. Replace with desired orifice. See

Key No. 5B.

2.Reconnect pilot tubing and check for leaks.

B.To replace Honeywell Q309A thermocouple in

Q327 or Q350 pilot:

1.Loosen attachment nut securing thermocouple to barrel of pilot burner. Disconnect other end at combination gas valve.

2.Remove thermocouple and replace with equal.

C.To replace complete pilot assembly.

1.Remove machine screws holding pilot burner to pilot bracket.

2.Disconnect pilot piping.

3.Disconnect all other leads to pilot.

4.Select pilot assembly with identical model number, reconnect leads and pilot tubing - resecure to pilot bracket.

D.To adjust or check spark gap between electrode and hood on Honeywell Q348A pilot.

1.Use round wire gauge to check spark gap.

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

E.Reinstall main burner following procedure described in paragraph 4.

7.Lubrication

There are no parts requiring lubrication on the part of the service technician or the User. Circulator bearings are water lubricated.

Table 8: Pilot Burner Location

 

Main Burner with

Pilot Burner Located

Boiler

Between Main

Pilot Bracket *

Model

 

 

Burners *

 

1 Inch

40mm

1 Inch

40mm

202

1

1

1 & 2

---

202X

1

1

1 & 2

1 & 2

203

1

1

1 & 2

1 & 2

204

2

2

2 & 3

2 & 3

205

3

2

3 & 4

2 & 3

206

4

3

4 & 5

3 & 4

 

 

 

 

 

207

6

3

6 & 7

3 & 4

208

7

4

7 & 8

4 & 5

209

8

4

8 & 9

4 & 5

210

9

5

9 & 10

5 & 6

* Main burners numbered left to right as viewed from

 

front of boiler.

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Contents Price $3.00 Series 2 model BTable of Contents Weight Clearances Do not drop boiler. Do not bump boiler jacket against floorMinimum Clearances Equivalent Length of Fittings Specific Gravity Correction Factors for Natural GasBoiler Piping Page Page Do not use one vent damper to control two heating appliances Page Wiring Diagrams and Heat Anticipator Settings Page Safety Shutdown Sequence of Operation Page Sequence of Operation Normal Operation Wiring Schematic, Zone Valves II. Operating Instructions Top View of VR Gas Valves Yellow LED Flame Codes Instructions to PUT the Boiler in OperationGreen LED Status Codes Lighting Instructions Check Pilot Burner Flame Check GAS Input Rate to BoilerCombustion Chamber BURN-OFF Check Ignition System Safety SHUT-OFF DeviceIII. Trouble Shooting IV. Service Pilot Burner Location Burner 40mm BurnerAvoid Breathing Fiber Particulates and Dust Section Assembly Gravity Circulation Only Repair PartsCanopy Group Section Assembly and Canopy GroupThis page Left Intentionally Blank Base Assembly USS Manifold and Main Burners Inch Main Burners Manifold and Main Burners 1 Inch Main Burners Only Manifold and Main Burners 40mm Main Burners MM Main Burners Only4B MM Main Burner, Electronic Ignition Only 4D MM Main Burner, Natural Gas, 5001-9000 Ft. USA Only MM Main Burners Only 4C MM Main Burner Manifold4D MM Main Burner, Natural Gas, 2001-5000 Ft. USA Only 4D MM Main Burner, LP Gas, 2001-5000 Ft. USA OnlyBurner Only 40mm Burner Only Pilot Burner, Honeywell Q327A1147 Pilot Burner, Honeywell Q348A1002 Jacket Assembly Jacket Assembly, CompletePage Jacket Vestibule Panel Water Trim Limit Control Transformer Continuous and Gravity Circulation Only Transformer/Relay Assembly Intermittent Circulation OnlyFlame Rollout Switch Blocked Vent SwitchDraft Hood Carton Vent DamperVent Reducer Service Record Service Record Service Record Lwco Location Wiring of Typical LwcoLimited Warranty