Roberts Gorden 175, 200, 350, 150, 400, 250, 300, 225 service manual Clearances To Combustibles

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SECTION 4: CLEARANCES TO COMBUSTIBLES

SECTION 4: CLEARANCES TO COMBUSTIBLES 4.1 Required Clearances To Combustibles

WARNING

Fire Hazard

Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Some objects can catch fire or explode when placed close to heater.

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

Clearances are the required distances that

combustible objects must be away from the heater to prevent serious fire hazards. Combustibles are materials that catch on fire and include common items such as wood, paper, rubber, fabric, etc. Maintain clearances to combustibles at all times for safety.

Clearances for all heater models are located on the serial plate of the heater and throughout the manual. Check the clearances on the serial plate to make sure the product is suitable for your application and the clearances are maintained. Read and follow the safety guidelines below:

•Keep gasoline or other combustible material including flammable objects, liquids, dust or vapors away from this heater or any other appliance.

•The stated clearances to combustibles represents a surface temperature of 90° F (50° C) above room temperature. Building materials with a low heat tolerance (such as plastics, vinyl siding, canvas, tri-ply, etc) may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that adjacent materials are protected from degradation.

•Consult local Fire Marshal, Fire Insurance Carrier or other authorities for approval of proposed installation when there is a possibility of exposure to combustible airborne materials or vapors.

4.2 Clearances To Combustibles

Clearances must be as indicated on Page 7, Figure 4. If clearances to combustibles are not indicated, then installation clearances apply.

Figure 4: Installation Clearances and Clearances to Combustibles

Installation Clearances

Clearances to Combustibles

Wall

Terminal

Roof Terminal

24" for adequate

air flow access axial fan.

(Optional separated

combustion concentric

venting shown.)

Top

10' (3 m)

6" (15 cm)

6"

(15 cm)

31"** (79 cm)

3"

20' (6.0 m) - 30' (9.1 m) Max. Mounting Height*

(8 cm)

* Recommended mounting height varies with heater input.

Clearance to Vent: 2" (5 cm)

Heaters may be mounted at a higher level if destratification

 

fans are installed.

**31" (79 cm) minimum is necessary

Note: Venting directly from top of heater not applicable

for servicing.

on Models 150 - 400.

The heater must always be installed at least 6' (2 m) above the floor. The vent pipe must have clearance from combustibles by 2" (5 cm).

If installed at low levels where individuals can come in contact with hot heat exchanger components, adequate guarding must be provided.

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Contents Combat Page Gamme standard Page Roberts-Gordon LLC Page Table of Figures Page California Proposition Heater SafetyManpower Requirements Safety Labels and Their PlacementUHAXS150 175 Label Placement UHAXS200 250 Label Placement UHAXS300 400 Label Placement Installer Responsibility Wall TagNational Standards and Applicable Codes Ventilation Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Manufactured UnitsClearances To Combustibles Installation Clearances and Clearances to CombustiblesNational Standards and Applicable Codes High Altitude Suspension Methods Heater Installation 6.1 GeneralCanadian Requirements Vent InstallationVenting United States RequirementsLength Requirements Standard Vented Heaters Models Uhax 150Horizontal Venting Vertical VentingMaximum Vent Lengths Table Vent MaterialReplacing an Existing Heater in a Venting System Model Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box Vertical Outside Combustion Air Supply Unvented InstallationAIR Supply Building VentilationConnections GAS PipingDo not bend flexible gas connector Fan Control WiringLow Voltage Thermostat with One Heater Positioning ThermostatsLow Voltage Thermostat with Multiple Heaters Models UHAXS150 Low Voltage Thermostat with Multiple Heaters Models UHAXS300 Transformer Uhaxs Series Internal Wiring DiagramFlame Uhaxs Series Ladder Wiring DiagramElectrical Connection to the Heater Mechanical Checks Operation and MaintenanceElectrical Checks LouversAutomatic Burner Control Sequence Begin Start-Up Before Operating the HeaterPressure Switch Check Gas RateTurning Off the Heater External Controls Complete the Start-UpInstruction to the User User Instructions Servicing Vicinity of the Heater Maintenance ChecklistVenting and Air Intake Pipe Annual Fall Start-UpValves Burner Observation When installed Wall TagHeat Exchanger Gas Line and Shut-offTroubleshooting General Conduct start-up procedure as shown on Page 27, Section Troubleshooting For Automatic Ignition Burner SystemsStart Troubleshooting for Flame Supervision SystemTroubleshooting for Flue Blower Troubleshooting for Gas ValvesBurner Components Replacement PartsBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Horizontal Louvers Louvers Louvers and Louver SpringUhaxs Ignition Control Axial Fan/Guard/Motor AssemblyTo Replace the Fan Assembly Specifications 16.1 Dimension Data Technical Data Table General Technical Data TableLimitations on Authority Representatives Warranty is Void ifROBERTS-GORDON LLC will PAY for ROBERTS-GORDON LLC will not PAY forPage Mail or Fax to Owner Warranty Registration CardPage
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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.
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