Burnham 8H manual Check Limits, Adjust gas input rate to boiler. Natural Gas, Input Rate

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CAUTION

Avoid operating this boiler in an environment where saw dust, loose insulation fibers, dry wall dust, etc. are present. If boiler is operated under these conditions, the burner interior and ports must be cleaned and inspected daily to insure proper operation.

a.Loosen lock screw.

b.Close air adjustment until yellow tips appear on flames.

c.Slowly open air adjustment until clearly defined inner cones are visible.

d.Tighten lock screw.

4.Adjust thermostat to normal setting.

J.Check thermostat or operating control operation. Raise and lower temperature setting to start and stop boiler operation.

K.Check ignition system shut-off.

1.Standing Pilot (24V): Disconnect thermocouple lead at Gas Valve. Gas Valve must close and pilot and main burners extinguish. If not, replace the gas valve.

2.Honeywell EI: Disconnect ignitor/sensor cable from ignition module. Gas valve must close and pilot and main burners extinguish. If not, measure voltage across gas valve terminals “TH” and “TR”.

a.If voltage is not present, replace gas valve.

b.If voltage is present, replace ignition module.

3.EP and OP: Refer to instructions supplied with the Honeywell RM7890 Burner Control.

L.Check Limit(s).

1.Adjust thermostat to highest setting.

2.Observe temperature gauge. When temperature exceeds limit set point main burners should extinguish.

3.Adjust limit to setting above observed reading. Main burners should reignite.

4.Adjust thermostat to lowest setting. Adjust limit to desired setting.

M.Adjust gas input rate to boiler. Natural Gas.

1.Adjust thermostat to highest setting.

2.Check manifold gas pressure. Manifold pressure is listed on rating label. Adjust gas valve pressure regulator as necessary (turn adjustment screw counterclockwise to decrease manifold pressure, or clockwise to increase manifold pressure). If pressure can not be attained, check gas valve inlet pressure. If less than minimum gas supply pressure listed on rating label, contact gas supplier for assistance.

3.Clock gas meter for at least 30 seconds. Use Table

12 to determine gas flow rate in Cubic Feet per

Hour.

Table 12: Input Rate

Seconds

 

Size of Gas Meter Dial

 

for One

One-Half

One

Two

 

Five

Revolution

Cu. Ft.

Cu. Ft.

Cu. Ft.

 

Cu. Ft.

30

60

120

240

 

600

32

56

113

225

 

563

34

53

106

212

 

529

36

50

100

200

 

500

40

45

90

180

 

450

38

47

95

189

 

474

40

45

90

180

 

450

42

43

86

172

 

430

44

41

82

164

 

410

46

39

78

157

 

391

48

37

75

150

 

375

50

36

72

144

 

360

52

35

69

138

 

346

54

33

67

133

 

333

56

32

64

129

 

321

58

31

62

124

 

310

60

30

60

120

 

300

62

29

58

116

 

290

64

29

56

112

 

281

66

29

54

109

 

273

68

28

53

106

 

265

70

26

51

103

 

257

72

25

50

100

 

250

74

24

48

97

 

243

76

24

47

95

 

237

78

23

46

92

 

231

80

22

45

90

 

225

4.Determine Input Rate. Multiply gas flow rate by gas heating value.

Warning

Failure to properly adjust gas input rate will result in over firing or under firing of the appliance. Improper and unsafe boiler operation may result.

5.Compare measured input rate to input rate stated on rating label.

a.Boiler must not be overfired. Reduce input rate by decreasing manifold pressure. Do not reduce more than 0.3 inch w.c. If boiler is still overfired, contact your Burnham distributor or Regional

Office for replacement Gas Orifices.

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Contents 81416021R3-6/10 Price $5.00 Series 8HImportant Information Read Carefully Page Table of Contents Dimensional Data Boiler Model Special Base Part Number Pre-InstallationPage Remove Crate II. Boiler AssemblyDo not use air to leak test boiler Installation of Special Base for Combustible FlooringGeneral Assembly Knockdown Boilers Flame Roll-out Switch Installation Install Jacket. See Figure Jacket Assembly EP/OP Control Installation III. Gas Control System Assembly Knockdown Boilers Page Schematic Gas Piping, 24V Standing Pilot, 806H & 807H Main Gas Piping, Intermittent Ignition EI Schematic Pilot Piping Honeywell EI, USA Page Schematic Gas Piping, OP Control System, 806H 810H Schematic Gas Piping, OP-CSD-1 Control System, 808H 810H Page Schematic Gas Piping, EP-CSD-1 Control System, 808H 810H IV. Water Trim and Piping Flow Rate, Temperature Rise, and Pressure DropDrain Piping Installation Page Page Connect boiler gas valve to gas supply system Gas PipingRated Input Specific Gravity Correction Factors Equivalent Lengths of Standard Pipe Fittings & ValvesVI. Venting Blocked Vent Switch InstallationBoiler Equipped With Vent Damper. See Figure Vent Damper InstallationTypical Vent System If an Existing Boiler is RemovedVII. Electrical Install Boiler WiringHeat Anticipator Settings Sequence of Operation and Wiring Diagrams Page Page Page Page Page Page Wiring Diagram, Honeywell EI, USA, Continuous Circulation Wiring Diagram, Honeywell EI, USA, Intermittent Circulation Wiring Diagram, Honeywell EI, Canada, Continuous Circulation Page Page Page Page Page Page VIII. System Start-Up Lighting Instructions 24V Standing Pilot Operating Instructions EI Lighting Instructions OP Operating Instructions EP Boiler Operating Instructions To Shut Down Honeywell Q314 Pilot Flame 24V Standing Pilot Input Rate Adjust gas input rate to boiler. Natural GasCheck Limits Combustion Chamber Burn-Off Adjust gas input rate to boiler. LP/PropaneClean Heating System Install Front Removable PanelClean Boiler Flueways. See Figure IX. ServiceAvoid Breathing Fiber Particulates and Dust Pilot Burner Location Boiler Flueway CleaningHoneywell EI Ignition Module Yellow LED Flame Codes OFF Honeywell EI Ignition Module Green LED Status CodesHoneywell EI Trouble Shooting Guide Repair Parts Heat Exchanger Assembly Canopy Base Assembly Manifold and Main Burners Description Size Quantity Description Quantity Gas Valve, Robertshaw 7000DERHC, Natural Gas, 1 NPT 81660151 Solenoid Gas Valve, Honeywell V8295A1024, ¾ NPT 81660235 Description Quantity Natural Gas Only Pilot Burner, Honeywell Q348A1002, Natural Gas Pilot Burner, Honeywell Q348A1010, LP Gas 8236081 Pipe Tee, 1/8 NPT, Malleable 806601005 Description Size Quantity Brass Compression Coupling, 1/4 OD Tube 8236008 Description Size Quantity Page Jacket Jacket Front Removable Panel Trim and Miscellaneous Controls Draft Hood and Automatic Vent Damper Service Record Service Record Service Record