Roberts Gorden 100, 75, 125 Operation and Maintenance, Pre-Start-Up Checks, Electrical Checks

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UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

SECTION 11: OPERATION AND MAINTENANCE

DANGER

 

WARNING

 

Electrical Shock Hazard

Explosion Hazard

Burn Hazard

Cut/Pinch Hazard

Disconnect electric

Turn off gas supply to

Allow heater to cool

Wear protective gear

heater before service.

before service.

during installation,

before service.

 

 

operation and service.

Heater must be

 

Tubing may still be hot

 

 

connected to a properly

 

after operation.

Edges are sharp.

grounded electrical

 

 

 

source.

 

 

 

Failure to follow these instructions can result in death, electric shock, injury or property damage.

Read this manual carefully before installation, operation, or service of this equipment. All components are accessed via the door secured by sheet metal screws with grounding strap. Opening the door exposes live electrical connections and hot components.

11.1 Pre-Start-Up Checks

All pre-start-up checks must be carried out before lighting the heater.

Ensure that the heater and all controls are suitable for the gas, pressure and electrical supply to which they are to be connected.

11.1.1 Electrical Checks

1.Check that all site wiring is connected in accordance with the appropriate wiring diagram on Page 23, Section 10.3.

11.1.2 Gas Supply

All aspects of the gas installation including the gas meter must be inspected, tested for gas tightness and purged in accordance with local and national codes.

Ensure that the air is fully purged from the heater inlet pipe up to the main gas valve inlet test nipple.

11.2 Begin Start-Up

11.2.1 Before Operating the Heater

To ensure that all the controls are in safe working order, operate the heater for the first time with the isolating gas valve turned off and power supply turned on.

1.Turn off the isolating gas valve.

2.Turn up the thermostat above room

temperature. The automatic ignition sequence will now begin as described on Page 27, Figure 15.

There will be no ignition of the burner and lockout will occur, which proves the controls are operating correctly.

11.1.3 Mechanical Checks

1.Check that the flue (and air intake for separated combustion units) is installed in accordance with the instructions in this manual and local regulations. See Page 12, Section 7.

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Contents Combat Page Combat Page Roberts-Gordon LLC Page Table of Figures Page Safety Labels and Their Placement Heater SafetyManpower Requirements California PropositionUhdxs 75 Label Placement Combat Corrosive Chemicals Installer ResponsibilityWall Tag National Standards and Applicable CodesCritical Considerations Clearances to Combustibles National Standards and Applicable Codes High Altitude Air Flow and Temperature Rise Ranges Duct Heater Installation 6.1 GeneralTemperature Rise and Pressure Drop Ranges Minimum Inlet Duct LengthWall Mounting Suspension MethodsShelf-Mounting Methods United States Requirements Vent InstallationVenting Canadian RequirementsVertical Venting Standard Vented Heaters Models Uhdx 75Horizontal Venting Length RequirementsVent Material Maximum Vent LengthsReplacing an Existing Heater in a Venting System Model Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 Building Ventilation Unvented InstallationAIR Supply Outside Combustion Air SupplyFire Hazard Connect gas supply according to Figure GAS PipingConnections Product Damage Hazard When attaching flexible gass connectorHold gas nipple securely with pip wrench Wiring Uhdxs Series Internal Wiring Diagram L2 L1Uhdxs Series Ladder Wiring Diagram Flue Blower Transformer GAS Valve Flame Sensor ElectrodeElectrical Connection to the Heater Electrical Checks Operation and MaintenancePre-Start-Up Checks Begin Start-Up Before Operating the HeaterAutomatic Burner Control Sequence END ViewTurning Off the Heater Pressure SwitchCheck Gas Rate External ControlsUser Instructions Heater OperationLighting Instructions 12.3.1 To Turn On Heater Simple TroubleshootingSimple Troubleshooting Burner Faults To Turn Heater OffServicing Vehicles and Other Annual Fall Start-upVicinity of the Heater ObjectsPipe When installed DuctworkCombustion Air Intake Heat ExchangerTroubleshooting General StartTroubleshooting For Automatic Ignition Burner Systems Conduct start-up procedure as shown on Page 26, SectionTroubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue BlowerReplacement Parts Burner ComponentsBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Flue Blower Vertical Installation Limit Switches Removal and Replacement Ignition ControlSpecifications 16.1 Dimension Data TOP ViewGeneral Technical Data Table Technical Data TablePage Roberts-Gordon LLC Warranty is Void ifROBERTS-GORDON LLC will not PAY for Limitations on Authority RepresentativesPage Owner Warranty Registration Card Mail or Fax toPage
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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.

The 125 series builds upon the efficiency of the 100 model while offering increased heating capacity. Its robust design ensures it can handle the demands of larger applications, such as warehouses and manufacturing facilities. With enhanced control options, users can tailor the heating output to match specific operational requirements, reducing energy consumption.

The 75 series offers a compact solution for smaller commercial spaces, providing a reliable heating source without taking up excessive floor space. Its lightweight design facilitates easy installation, while the modular approach allows for scalability to meet changing heating demands. This series emphasizes sustainability, utilizing advanced combustion technologies that minimize emissions.

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.

Overall, Roberts Gordon’s radiant tube heaters showcase a commitment to high-quality heating solutions that cater to a variety of industrial and commercial applications. With energy efficiency, superior durability, and advanced heating technologies as core characteristics, Roberts Gordon remains a trusted choice for businesses looking to enhance their heating performance.
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