Roberts Gorden 75, 100, 125 service manual Troubleshooting for Flame Supervision System

Page 45

SECTION 14: TROUBLESHOOTING

14.3 Troubleshooting for Flame Supervision System

To measure flame current, connect a 0 - 50 μA DC meter in series with the flame probe. If the meter reads negative values, then reverse the test leads.

START

Connect a DC ammeter in series with the flame probe.

Is the flame present and

at least 1 μA DC flame No current?

Yes

Is there a current flowing in

the flame probe circuit with Yes no flame present?

No

 

Does “lockout” occur when

Yes

there is a flame present?

 

No

Heater Operating

No

TROUBLESHOOT ENDS.

 

Use General

Troubleshooting section to

trace the fault.

Is the connecting lead

damaged? Is the flame probe damaged or touching earthed components?

Is inlet burner gas pressure correct? Is live and neutral polarity correct? Is

flame probe circuit correct?

No

Repair or replace as

required.

If problems persist, contact

Roberts-Gordon LLC at

www.rg-inc.com

Repair or replace as

Yes required.

Yes Replace ignition control.

NOTE: Minimum flame probe current 1 μA DC. Typical flame probe current 3-5 μA DC.

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Contents Combat Page Combat Page Roberts-Gordon LLC Page Table of Figures Page Manpower Requirements Heater SafetySafety Labels and Their Placement California PropositionUhdxs 75 Label Placement Combat Wall Tag Installer ResponsibilityCorrosive Chemicals National Standards and Applicable CodesCritical Considerations Clearances to Combustibles National Standards and Applicable Codes High Altitude Temperature Rise and Pressure Drop Ranges Duct Heater Installation 6.1 GeneralAir Flow and Temperature Rise Ranges Minimum Inlet Duct LengthSuspension Methods Wall MountingShelf-Mounting Methods Venting Vent InstallationUnited States Requirements Canadian RequirementsHorizontal Venting Standard Vented Heaters Models Uhdx 75Vertical Venting Length RequirementsMaximum Vent Lengths Vent MaterialReplacing an Existing Heater in a Venting System Model Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 AIR Supply Unvented InstallationBuilding Ventilation Outside Combustion Air SupplyGAS Piping Fire Hazard Connect gas supply according to FigureConnections When attaching flexible gass connector Product Damage HazardHold gas nipple securely with pip wrench Wiring L2 L1 Uhdxs Series Internal Wiring DiagramFlue Blower Transformer GAS Valve Flame Sensor Electrode Uhdxs Series Ladder Wiring DiagramElectrical Connection to the Heater Pre-Start-Up Checks Operation and MaintenanceElectrical Checks Begin Start-Up Before Operating the HeaterEND View Automatic Burner Control SequenceCheck Gas Rate Pressure SwitchTurning Off the Heater External ControlsHeater Operation User InstructionsSimple Troubleshooting Burner Faults Simple TroubleshootingLighting Instructions 12.3.1 To Turn On Heater To Turn Heater OffServicing Vicinity of the Heater Annual Fall Start-upVehicles and Other ObjectsCombustion Air Intake When installed DuctworkPipe Heat ExchangerTroubleshooting Start GeneralConduct start-up procedure as shown on Page 26, Section Troubleshooting For Automatic Ignition Burner SystemsTroubleshooting for Flame Supervision System Troubleshooting for Flue Blower Troubleshooting for Gas ValvesBurner Components Replacement PartsBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Flue Blower Vertical Installation Ignition Control Limit Switches Removal and ReplacementTOP View Specifications 16.1 Dimension DataTechnical Data Table General Technical Data TablePage ROBERTS-GORDON LLC will not PAY for Warranty is Void ifRoberts-Gordon LLC Limitations on Authority RepresentativesPage Mail or Fax to Owner Warranty Registration CardPage
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125, 100, 75 specifications

Roberts Gordon is a recognized leader in the manufacturing of innovative heating solutions, with a diverse product line including the 100, 125, 75, 45, and 60 series of radiant tube heaters. Each model is designed to meet specific heating needs while emphasizing efficiency, durability, and performance.

The Robert Gordon 100 series is known for its high efficiency and ability to provide consistent warmth in large industrial spaces. It features advanced infrared technology, which heats objects and surfaces directly, resulting in quicker temperature increases and enhanced comfort. This model is equipped with modulating burners that allow for optimal gas usage and can be easily integrated into existing systems.

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For smaller applications, the 45 series stands out with its efficient heating capabilities in confined spaces. This series features simple, yet effective controls, enabling straightforward operation. The robust construction ensures durability, making it well-suited for different commercial environments, including retail settings or small workshops.

Finally, the 60 series combines the best features of the range with energy conservation as a primary focus. Its innovative design incorporates smart technology to monitor energy usage and optimize performance. The heaters are equipped with the latest in safety features, providing peace of mind for users.

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