Roberts Gorden UHD[X][S][R] 125, UHD[X][S][R] 75 National Standards and Applicable Codes

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SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

4.1 Gas Codes

The type of gas appearing on the name plate must be the type of gas used. Installation must comply with national and local codes and requirements of the local gas company.

United States: Refer to NFPA 54/ ANSI Z223.1 - latest revision, National Fuel Gas Code.

Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

4.2 Aircraft Hangars

Installation in aircraft hangars must be in accordance with the following codes:

United States: Refer to Standard for Aircraft Hangars, NFPA 409 - latest revision.

Canada: Refer to Standard CSA B149.1 Natural Gas and Propane Installation Code.

In aircraft storage and servicing areas, heaters shall be installed at least 10' (3 m) above the upper surface of wings or of engine enclosures of the highest aircraft which may be housed in the hangar. The measurement shall be made from the wing or engine enclosure (whichever is higher from the floor) to the bottom of the heater.

In shops, offices and other sections of aircraft hangars communicating with aircraft storage or servicing areas, heaters shall be installed not less than 8' (2.4 m) above the floor.

Suspended or elevated heaters shall be so located in all spaces of aircraft hangars that they shall not be subject to injury by aircraft, cranes, movable scaffolding or other objects.

Provisions shall be made to assure accessibility to suspended heaters for recurrent maintenance purposes.

4.3 Parking Structures and Repair Garages

Installation in garages must be in accordance with the following codes:

United States: Standard for Parking Structures NFPA 88A - latest revision or the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A - latest revision. Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

In accordance with the Standard for Parking Structures NFPA 88A, heaters must be located a minimum of 18" (50 cm) below the floor-ceiling assembly or 18" (50 cm) above the floor.

In accordance with the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A - latest revision, heaters must not be installed less than 8' (2.4 m) above the floor.

4.4 Electrical

The heater must be electrically grounded in accordance with the following codes:

United States: Refer to National Electrical Code®, NFPA 70 - latest revision. Wiring must conform to the most current National Electrical Code®, local ordinances and any special diagrams furnished.

Canada: Refer to Canadian Electrical Code, CSA C22.1 Part 1 - latest revision.

4.5 Venting

The venting must be installed in accordance with the requirements within this manual and the following codes:

United States: Refer to NFPA 54/ANSI Z223.1 - latest revision, National Fuel Gas Code.

Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

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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 CodesClearances to Combustibles Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Manufactured UnitsVent VentilationElectrical Supply Gas SupplyNational Standards and Applicable Codes High Altitude Minimum Inlet Duct Length Duct Heater Installation 5.1 GeneralTemperature Rise and Pressure Drop Ranges Air Flow and Temperature Rise RangesWall Mounting Shelf Mounting and SuspensionShelf-Mounting Methods United States Requirements Vent InstallationVenting Changing Vent and Air Intake OrientationHorizontal Venting Standard Vented Heaters Models Uhdxr 75Separated Combustion Heaters Models Uhdxsr 75 Unvented OperationReplacing an Existing Heater in a Venting System Maximum Vent LengthsVent Material Vent and Roof Detail Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 Building Ventilation Separated Combustion InstallationUnvented Installation AIR SupplyConnections GAS PipingPositioning Thermostats WiringLow Voltage Thermostat with One Heater L2 L1 Internal Wiring DiagramFlue Blower Transformer GAS Valve Flame Sensor Electrode Ladder Wiring DiagramElectrical Connection to the Heater Electrical Checks Operation and MaintenanceBegin Start-Up Before Operating the Heater Pre-Start-Up ChecksEND View External Controls Pressure SwitchCheck Gas Rate Turning Off the HeaterLighting Instructions 11.4.1 To Turn On Heater User InstructionsUser Instructions Heater OperationTo Turn Heater Off Simple TroubleshootingSimple Troubleshooting Burner Faults Servicing Objects Maintenance ChecklistVicinity of the Heater Vehicles and OtherBurner Observation When installed DuctworkGas Line and Shut-off ValvesTroubleshooting 13.1 General Conduct start-up procedure as shown on Page 23, 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 Top, remove the blower and mounting plate as above Flue Blower Vertical InstallationIgnition Control Limit Switches Removal and ReplacementTOP View Specifications 15.1 Dimension DataTechnical Data Table General Technical Data TablePage Limitations on Authority Representatives Warranty is Void ifRoberts Gordon will not PAY for Roberts-GordonPage Owner Warranty Registration Card Page Page Clearances to Combustibles