Roberts Gorden 200, 350 Wiring, Low Voltage Thermostat with One Heater, Positioning Thermostats

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SECTION 9: WIRING

SECTION 9: WIRING

WARNING

Electrical Shock Hazard

Disconnect electrical power and gas supply before servicing.

This appliance must be connected to a properly grounded electrical source.

Failure to follow these instructions can result in death or electrical shock.

All heater models require constant 120 V 60 Hz 1Ø power supply. Check heater(s) rating plate for electrical rating for proper circuit sizing. For servicing, a disconnect switch of proper electrical rating should be installed in the vicinity of the heater. All heaters are equipped with thermostat connections suitable to power a 24 V thermostat. Heater must be wired and electrically grounded in accordance with local codes. In the absence of local

9.2 Low Voltage Thermostat with One Heater

codes in accordance with: United States: refer to National Electrical Code® NFPA 70 - latest revision Canada: refer to Canadian Electrical Code CSA C22.1 Part I - latest revision.

9.1 Positioning Thermostats

Aroom thermostat or ROBERTS GORDON® control should be mounted on a vibration-free wall or column at a height of approximately 5' (1.5 m) from the floor to measure the ambient temperature. It should be clear of both cold drafts and the direct path of warm air from the heater.

Avoid mounting thermostat on outside walls or in areas directly exposed to radiant heat or sunlight. Install wall tag in a visible location near thermostat.

9.1.1 Fan Control

The heater’s axial fan can be used during the off- season for air circulation. A low voltage thermostat with fan control must be used. See Page 15, Section

9.2for thermostat connection details.

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Contents Combat Page Roberts-Gordon LLC Page Table of Figures Page Manpower Requirements Heater SafetyWall Tag Installer ResponsibilityCorrosive Chemicals National Standards and Applicable CodesSeparated Combustion Installation Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Clearances to CombustiblesInstallation Clearances and Clearances to Combustibles National Standards and Applicable Codes Suspension Major Components 5.1 GeneralVenting 6.1 Venting Vent InstallationUnited States Requirements Canadian RequirementsUnvented Operation Separated Combustion Heaters Models Uhas 150Horizontal Venting Vertical VentingVent and Roof Detail Vent MaterialStandard Vented Heater Common Vertical Vent Termination Concentric Vent Box Horizontal AIR Supply Unvented InstallationBuilding Ventilation Outside Combustion Air SupplyConnections GAS PipingLow Voltage Thermostat with One Heater WiringPositioning Thermostats Fan ControlGAS Valve Uhas Series Internal Wiring DiagramUhas Series Ladder Wiring Diagram Electrical Connection to the Heater Louvers Operation and MaintenanceElectrical Checks Mechanical ChecksAutomatic Burner Control Sequence Check Gas Rate Pressure SwitchTurning Off the Heater Complete the Start-UpSimple Troubleshooting Burner Fault Simple TroubleshootingHeater Operation Lighting Instructions 11.3.1 To Turn On HeaterUser Instructions 12.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Valve MaintenanceVicinity of the Heater Maintenance ChecklistVehicles and Other ObjectsBurner Observation When installedWindow Flue Blower Scroll, WheelTroubleshooting 13.1 General Result in death or electrical shock Troubleshooting For Automatic Ignition Burner SystemsTroubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue BlowerConduct start-up procedure as shown on Page 19, Section Burner Components Replacement PartsBurner Injectors Burner CompartmentDescription Part Number Ignition Electrode and Flame ProbeLouvers and Louver Spring ExchangerAssemblyUhas Ignition Control Axial Fan/Guard/Motor AssemblyFan Removal and Replacement To Replace the Fan AssemblyLimit Switches Removal and Replacement Standard Models 150 400 Uhas Series Dimension Data SpecificationsTechnical Data Table All Models General Technical Data Table All ModelsPage ROBERTS-GORDON will PAY for Warranty is Void ifROBERTS-GORDON will not PAY for Limitations on Authority RepresentativesPage Page Page Page Fire Hazard
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225 250, 175, 300, 400, 150 specifications

Roberts Gorden is a recognized leader in the field of heating solutions, particularly renowned for the development of its innovative radiant heating systems. The lineup of models including the Roberts Gorden 250, 300, 400, 150, and 225 features a blend of advanced technology, exceptional efficiency, and versatile applications that cater to various industrial and commercial needs.

At the core of Roberts Gorden products is their radiant heating technology. Unlike conventional heating systems that warm the air, radiant heaters emit infrared radiation, which directly heats objects and people within a space. This method not only provides a comfortable environment but also reduces energy consumption and minimizes the loss of heat, making it an environmentally friendly choice.

The Roberts Gorden 250 model is specifically designed for smaller spaces, offering compact efficiency without sacrificing power. It features an adjustable output, allowing for tailored heating based on specific requirements. The advanced burner technology ensures optimum combustion efficiency, translating to cost savings on fuel consumption.

Moving on to the Roberts Gorden 300, this unit is well-suited for medium-sized facilities. With enhanced capabilities, the 300 model offers improved heating distribution, making it ideal for warehouses and production floors. The ease of installation and maintenance further enhances its appeal, allowing businesses to focus on their operations rather than on complicated heating systems.

The Roberts Gorden 400 is a powerhouse in the lineup, engineered for larger spaces that demand high-performance heating. Its robust construction and powerful output provide effective warmth even in challenging environments. The unit is equipped with sophisticated controls that promote energy efficiency while maintaining optimum comfort levels.

In the mid-range spectrum, the Roberts Gorden 150 and 225 models cater to businesses needing versatile heating solutions. Both models are designed with user-friendly interfaces and include safety features that comply with industry standards. Their lightweight design allows for easy installation and mobility, making them suitable for temporary or permanent heating applications.

Overall, Roberts Gorden's commitment to innovation and efficiency is evident across its product range. With a focus on sustainability and advanced heating technologies, the Roberts Gorden 250, 300, 400, 150, and 225 models provide reliable heating solutions that meet the diverse preferences of industrial and commercial users. These products are not just about warmth; they are about creating a comfortable and productive environment while minimizing energy costs and environmental impact.
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