Roberts Gorden 100, 75, 125 service manual Critical Considerations

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SECTION 3: CRITICAL CONSIDERATIONS

SECTION 3: CRITICAL CONSIDERATIONS

 

3.1 Basic Information

• Must be installed in a manner which allows

UHD[X][S] heaters have automatic ignition burners

access to all serviceable components. See Page

for ON/OFF operation only.

6, Figure 3 for details.

3.2 Manufactured Units

Gas-fired, power-vented duct furnace with tubular heat exchanger. Units shall have a minimum of 82% thermal efficiency. The standard unit shall consist of

anon-separated combustion design with an aluminized heat exchanger. Design and heat exchanger alternatives shall be offered as follows:

•Separated Combustion: A separated combustion unit shall feature an enclosed, sealed burner box. A piece of flexible air duct connects this burner box to a flange on the cabinet. Combustion air should be ducted from outside the heated space, with the ductwork connecting to the unit with the use of the flange.

•Stainless Steel Heat Exchanger: A stainless steel heat exchanger unit shall consist of heat exchanger tubes, heat exchanger tube supports, heat exchanger tube plates and vent box produced of 409 stainless steel.

The use of stainless steel heat exchanger is recommended when air inlet temperatures are below 40° F (4.4° C) or temperature rise is less than 40° F (22.2° C) as condensation may form on the heat exchanger resulting in corrosion that may shorten its life.

3.3Location and Suspension All models:

• Must be installed indoors.

•Must be installed on the positive pressure side of the air circulation blower.

•Must be installed in a level position with horizontal discharge.

•May be mounted on a shelf of non-combustible material using shelf mounting brackets.(See Page 11, Figure 6 and Page 11, Figure 7 for details.)

•Drop rods must be a minimum of 3/8" diameter mild steel. Four suspension points (3/8" nuts) are located on top of the heater.

•May be suspended from above (See Page 10, Figure 5) or from wall brackets of sufficient strength to support the heater as listed in the Technical Data Table on Page 45, Section 16.2.

3.4 Minimum Required Installation Clearances

Clearances around the heater and vent must be as indicated on Page 6, Figure 3 and Page 14, Figure 8 to ensure access for servicing, and correct operation.

3.5 Ventilation

It is important to ensure that there is adequate air space around the heater to supply air for combustion, ventilation and distribution in accordance with local and national codes. See Page 12, Section 7.

3.6 Gas Supply

It is important that the gas supply pipe is sized correctly to provide the inlet pressure as stated on the heater data plate. The gas supply pipe and electrical connections must not support any of the heater's weight. See Page 20, Section 9.

3.7 Electrical Supply

A permanent 120 V /1 Ø/60 Hz electrical supply is required for the main electrical power. The heater also requires suitable controls in accordance with Page 22, Section 10.

3.8 Vent

Choose heater orientation to allow for proper location of the vent. Each heater must be fitted with a correctly sized sealed vent system.

If vented horizontally, no other appliance may be connected to the vent. See Page 12, Section 7.

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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 RequirementsVent Material Maximum Vent LengthsReplacing 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 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 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.

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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