Roberts Gorden HE20UT, HE20ST, HE50DL, HE45UT Air Supply with Flue Configurations, Common Duct

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SECTION 11: VENTING AND FRESH AIR SUPPLY

Figure 31: Air Supply with Flue Configurations

	C52
			C12
	C32
C12	C32	C62	B22

11.7 Common Duct

When using a common air inlet duct, always ensure that the area of the common air inlet duct represents the area of all air ducts.

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Contents Owner If you smell gasPage Roberts-Gordon Europe Limited Table of ContentsPage Table of Figures Bottom and Back Panel Label PlacementPage Product Approval Heater Safety Control Side Label Placement Installer Responsibility Low Level User InstructionsNational Standards and Applicable Codes Clearances to Combustibles Clearances Data Linear and Double Linear ModelHE40ST HE45ST HE50ST HE45ST HE50ST HE15ST HE30DLHE20UT HE15UTHE25UT HE30UTTUBE, Protective Grille TUBE, Opposite 45 TiltMajor Component Descriptions General Suspension Details Typical Suspension Details Linear & Double Linear Heater Installation Linear Standard Parts ListDescription Linear General Assembly Overview HE15ST f HE20ST HE25ST f HE35ST HE40ST fHE45ST HE50ST f Double Linear Standard Parts List Double Linear General Assembly Overview HE60DL HE70DL f HE30DL fCoupling and Tube Assembly Burner Tube InstallationOpen Closed1 Coupling and Tube Assembly 2 Coupling and Tube AssemblyTighten slide bar as shown below Tube Clamp Package Installation Hanger Option a Option BFan Tube Weld Spot Coupling Tee Tube Standard Parts List Tube Heater InstallationLockwasher 6mm Blackheat HE Tube Assembly OverviewHE15UT g HE20UT g HE30UT HE35UT gHE45UT g Burner Tube and Fan Tube Installation U-tube Hanger Placement1 Tube Clamp Package Installation U-tube Support Bracket Assembly InstallationTube, Standard Tube, Opposite Orient coupling so that Impact block is U-tube Installation Tube InstallationReflector 02750303 Reflector Support Strap 03050000 Screw #8 x 3/4 Multiburner Configuration & Installation Typical Manifold Layout Linear and U-Tube Configuration Burner & FAN Installation Burner InstallationStandard Fan Assembly Linear & U-tube Fan Installation IP55 Fan Assembly1 Double Linear Fan Installation Double Linear Fan InstallationNon-Return Valve Condensate Drain AssemblyOptional Heater Accessories 2 Side Reflector Installation Reflector Side Extension Installation 1 Bracket InstallationStep Tube Cover InstallationDistance a Extension 2 Frame Shield Installation3 Grille Installation 2 Grille End Cap Installation2 Fastener Installation Sports Hall Guard Installation1 Grille Installation 3 Mesh Guard ConnectionUndershield Installation 10.6.1 Hanger Installation Undershield InstallationAdjust Undershield Height Wall Mounting Hardware InstallationVenting and Fresh AIR Supply Air Supply Requirements Outside Combustion Air SupplyCommon Duct Air Supply with Flue ConfigurationsGAS Piping Correct Positions Incorrect Positions Wrong InstallationTypical External Wiring Diagram Linear or U-Tube WiringTypical External Wiring Diagram Multiburner Typical External Wiring Diagram Double Linear OptionInternal Wiring Diagram Operation and service Heater Lockout Indicator by ConnectorOperation Tubing may still be hotTesting Heater Lockout Indicator by Volt Free ConnectorCommissioning Multiburner System ChecksServicing Instructions Maintenance Checklist Pressure SwitchElectrode Automatic Flame Control UnitOutside Air Inlet Vent PipeTubes Gas LineTroubleshooting U-Tube Troubleshooting Flow Chart Linear, Double LinearTroubleshooting Flow Chart Linear, Double Linear and U-Tube Troubleshooting Flow Chart MultiburnerTroubleshooting Flow Chart Multiburner Manometer 4 3 2 1 0 1 2 3 4 5 Manifold Gas Pressure SettingReplacement Parts V2 W3 Door Gasket Replacement Package P/N Viewer Window Replacement Package P/NGas Valve Replacement Package P/N Description QuantitySpecifications Linear Heater Double Linear HeaterTube Heater Burner Specifications Standard Burner SpecificationsModels HE15 HE20 HE25 HE30 HE35 HE40 HE45 HE50 Page Page Maintain Clearance Side Clearance below