Roberts Gorden 350, 200, 150, 400, 250, 300, 225, 175 service manual Uhas

Page 41

SECTION 14: REPLACEMENT PARTS

14.5 Pressure Switch

Pull off 3 way connector. Spring open plastic clips of mounting cradle. Replace with correct type of pressure switch for model. The pressure switches are color coded for each pressure setting.

WARNING

Carbon Monoxide Hazard

Use correct pressure switch specified for each model.

Use of incorrect pressure switch or disabling pressure switch circuit could cause unsafe condition.

Failure to follow these instructions can result in death or serious injury.

Carry out a commission after working on or changing a pressure switch. See Page 19, Section 10.

 

UHA[S]

UHA[S]

UHA[S]

UHA[S]

UHA[S]

Pressure Switch

150 - 175

200 - 225

250

300 - 350

400

 

 

 

 

 

 

P/N

90439802

90439808

90439803

90439807

90439808

 

 

 

 

 

 

Color Code

yellow

orange

gray

brown

orange

 

 

 

 

 

 

Set Point in. w.c.

.32

.79

.41

.68

.79

 

 

 

 

 

 

35

Image 41
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 PipingPositioning Thermostats WiringFan Control Low Voltage Thermostat with One HeaterTransformer 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 Faults Simple TroubleshootingHeater Operation To Turn the Heater OffUser Instructions 12.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Valve MaintenanceInstallation Code and Annual Inspections All Maintenance ChecklistVicinity of the Heater Vehicles and OtherBurner Observation When installedWindow Combustion Fan ScrollTroubleshooting 13.1 General Result in death or electrical shock Troubleshooting For Automatic Ignition Burner SystemsStart Troubleshooting for Flame Supervision SystemConduct start-up procedure as shown on Page 19, Section Troubleshooting for Gas ValvesTroubleshooting for Combustion Fan Burner Components Replacement PartsBurner Injectors Burner CompartmentDescription Part Number Qty Ignition Electrode and Flame ProbeCombustion Fan Vertical Installation Uhas Limit Switches Removal and Replacement Axial Fan/Guard/Motor AssemblyFan Removal and Replacement To Replace the Fan AssemblyStandard Models 150 400 Uhas Series Dimension Data SpecificationsTechnical Data Table All Models General Technical Data Table All ModelsROBERTS-GORDON will PAY for Warranty is Void ifROBERTS-GORDON will not PAY for Limitations on Authority RepresentativesPage Page Some objects can catch fire or explode when placed
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175, 225, 300, 250, 400 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.