Burnham IN10 manual

Page 39

L.Water Boiler with Continuous Ignition (Standing Pilot) and Intermittent Circulation. See Figure 39.

1.Normal Operation

a.Thermostat calls for heat.

b.Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation.

c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners.

d. After Thermostat is satisfied Gas Valve(s) is de- energized, extinguishing main flame. Vent Damper (if used) closes.

2.Safety Shutdown

a. Limit: Automatically interrupts main burner operation when water temperature exceeds set point. Maximum allowable temperature is 250°F. Normal operation resumes when water temperature falls below set point.

b. Blocked Vent Switch. Automatically interrupts

main burner operation when excessive vent system blockage occurs. Control is a multiple use device. If blocked vent switch is activated do not attempt to place boiler in operation. Correct source of blockage and reset blocked vent switch.

c. Flame Roll-out Switch. Automatically interrupts boiler operation when flames or excessive heat are present in vestibule. Control is single use device. If flame roll-out switch is activated do not attempt to place boiler in operation. Correct source of blockage and replace flame roll-out switch.

d. Thermocouple: senses pilot flame and causes gas valve to turn off main burner and pilot burner gas flow should pilot burner flame extinguish.

39

Image 39

Contents 8141049R26-10/08 Price $5.00 IndependencePage Page Dimensional Drawing Table of Contents Probe L.W.C.O Float L.W.C.O Tankless Heater Pre-Installation Clearance to Combustible Materials II. Knocked-Down Boiler Assembly Install Base-Burner-Manifold AssemblyInstall assembled cast iron sections on base assembly Canopy Gasket Installation Install CanopyCombustion Chamber Intermittent Ignition EI Install Ignition Module Install Blocked Vent Switch with sheet metal screwsSteam Boiler with Probe Low Water Cutoff III. Semi-Pak Boiler AssemblyInstall Trim and Controls Remove CrateWater Boiler Junction Box and Mounting Bracket AssemblyIV. Packaged Boiler Assembly Install Jacket Front PanelRemove Jacket Front Panel. See Figure Piping and Trim Page Recommended Water Piping for Circulator Zoned Heating System Recommended Water Piping for Zone Valve Zoned Heating System Recommended Piping for Indirect Water Heater Page VI. Gas Piping Rated InputConnect boiler gas valve to gas supply system Specific Gravity Correction Factors for Natural Gas Fitting Equivalent LengthsBoiler Equipped With Vent Damper VII. VentingIf an Existing Boiler is Removed Typical Vent InstallationVIII. Electrical Wire Vent Damper if usedAlliance Indirect Water Heater if used Thermostat Heat Anticipator SettingsVent Damper Harness to Limit This page Left Intentionally Blank Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Follow Lighting or Operating Instructions IX. System Start-upFill boiler with water Prepare to check operationPage Page Page Page Ignition Module Terminal Cross-Reference Ignition Module Wiring Ladder Diagram Terminal DesignationOFF Green LED Status CodesPilot Burner Flame, Honeywell Q350 Check Limit Adjust gas input rate to boiler. Natural GasCheck low water cutoff steam only Do not drain below gauge glassInput Rate Adjust gas input rate to boiler. LP/PropanePage Page Maintenance of Low Water Cutoff Service InstructionsClean Boiler Flueways Boiler Flueway CleaningTankless Heater Pilot Burner LocationModel No Gallons Per Month Year Excessive Make-Up WaterHoneywell Electronic Ignition Trouble Shooting Guide Honeywell Hot Surface to Pilot Trouble Shooting Guide Avoid Breathing Fiber Particulates and Dust Service Record XI. Repair PartsSection Assembly Canopy and Draft Hood Canopy/Draft Hood Parts Base Tray Base AssemblyBurner Tray 1 Inch Main Burners Manifold and 1 Main Burners Manifold and Main Burners 1 Inch Main Burners Only Volt Continuous Ignition Standing Pilot Natural Gas Manifold and 40mm Main BurnersManifold and Main Burners 40MM Main Burners only Intermittent Ignition OnlyNatural Gas, High Altitude 2000-4500 Ft. Canada Only LP Gas, High Altitude 2000-5000 Ft. USA OnlyNatural Gas, High Altitude 5000-9000 Ft. USA Only LP Gas, High Altitude 5000-9000 Ft. USA OnlyPilot Burner, Honeywell Q350A1321 Pilot Burner, Honeywell Q348A1002 Page Jacket Assembly Front Top Panel Jacket Assembly Refer to Figure onSteam Trim Page Water Trim Quantity This page Left Blank Intentionally Page Ignition Module Intermittent Ignition Only Flame Rollout SwitchBlocked Vent Switch Transformer Steam and Gravity Water OnlyWiring of Typical Lwco XII. Low Water Cut Off LwcoLwco Location Limited Warranty Limited Warranty