Roberts Gorden UHD[X][S][R] 75 Installer Responsibility, Corrosive Chemicals, Wall Tag

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UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

SECTION 2: INSTALLER RESPONSIBILITY

The installer is responsible for the following:

To install the heater, as well as the gas and electrical supplies, in accordance with applicable specifications and codes. Roberts-Gordon recommends the installer contact a Local Building Inspector or Fire Marshal for guidance.

To use the information given in a layout drawing and in the manual together with the cited codes and regulations to perform the installation.

To install the heater in accordance with the clearances to combustibles.

To furnish all needed materials not furnished as standard equipment.

To plan location of supports, vents and air intakes.

To provide access for servicing.

To provide the owner with a copy of this Installation, Operation and Service Manual.

To never use heater as support for a ladder or other access equipment and never hang or suspend anything from heater.

To ensure there is adequate air circulation around the heater and to supply air for combustion, ventilation and distribution in accordance with local codes.

To provide a method that ensures that the air flow through the heat exchanger is within the acceptable range indicated on the rating plate prior to energizing the heater, and that such air flow continues at least 90 seconds after the heater is de-energized.

2.2 Corrosive Chemicals

Caution: Do not use heater in an area containing corrosive chemicals. Avoid the use of corrosive chemicals to ensure a longer life of the burner, heat exchanger and other parts.

Roberts-Gordon cannot be responsible for ensuring that all appropriate safety measures are undertaken prior to installation; this is entirely the responsibility of the installer. It is essential that the contractor, the sub-contractor, or the owner identifies the presence of combustible materials, corrosive chemicals or halogenated hydrocarbons* anywhere in the premises.

*Halogenated Hydrocarbons are a family of chemical compounds characterized by the presence of halogen ele- ments (fluorine, chlorine, bromine, etc.). These compounds are frequently used in refrigerants, cleaning agents, solvents, etc. If these compounds enter the air supply of the burner, the life span of the heater components will be greatly reduced. An out- side air supply must be provided to the burners whenever the presence of these compounds is suspected. Warranty will be invalid if the heater is exposed to halogenated hydrocarbons.

2.3 National Standards and Applicable Codes

All appliances must be installed in accordance with the latest revision of the applicable standards and national codes. This refers also to the electric, gas and venting installation. Note: Additional standards for installations in public garages, aircraft hangars, etc. may be applicable.

2.1 Wall Tag

A laminated wall tag is included with the heater as a permanent reminder of the safety instructions and the importance of the required clearances to combustibles. Affix the tag by peeling off the backing of the adhesive strips on the rear surface and position the tag on a wall near the heater.

A copy of the wall tag (P/N 91039831) is illustrated on the back cover.

Know your model number. Model number is found on the heater and throughout the Installation, Operation and Service Manual.

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Contents Combat Page Roberts-Gordon LLC Page Table of Figures Page Heater Safety Manpower RequirementsInstaller Responsibility Corrosive ChemicalsNational Standards and Applicable Codes Wall TagMinimum Required Installation Clearances Critical Considerations 3.1 Basic InformationManufactured Units Clearances to CombustiblesVentilation Electrical SupplyGas Supply VentNational Standards and Applicable Codes High Altitude Duct Heater Installation 5.1 General Temperature Rise and Pressure Drop RangesAir Flow and Temperature Rise Ranges Minimum Inlet Duct LengthShelf Mounting and Suspension Wall MountingShelf-Mounting Methods Vent Installation VentingChanging Vent and Air Intake Orientation United States RequirementsStandard Vented Heaters Models Uhdxr 75 Separated Combustion Heaters Models Uhdxsr 75Unvented Operation Horizontal VentingReplacing 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 Separated Combustion Installation Unvented InstallationAIR Supply Building VentilationGAS Piping ConnectionsPositioning Thermostats WiringLow Voltage Thermostat with One Heater Internal Wiring Diagram L2 L1Ladder Wiring Diagram Flue Blower Transformer GAS Valve Flame Sensor ElectrodeElectrical Connection to the Heater Operation and Maintenance Begin Start-Up Before Operating the HeaterPre-Start-Up Checks Electrical ChecksEND View Pressure Switch Check Gas RateTurning Off the Heater External ControlsUser Instructions User InstructionsHeater Operation Lighting Instructions 11.4.1 To Turn On HeaterTo Turn Heater Off Simple TroubleshootingSimple Troubleshooting Burner Faults Servicing Maintenance Checklist Vicinity of the HeaterVehicles and Other ObjectsWhen installed Ductwork Gas Line and Shut-offValves Burner ObservationTroubleshooting 13.1 General Troubleshooting For Automatic Ignition Burner Systems Conduct start-up procedure as shown on Page 23, SectionTroubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue BlowerReplacement Parts Burner ComponentsBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Flue Blower Vertical Installation Top, remove the blower and mounting plate as aboveLimit Switches Removal and Replacement Ignition ControlSpecifications 15.1 Dimension Data TOP ViewGeneral Technical Data Table Technical Data TablePage Warranty is Void if Roberts Gordon will not PAY forRoberts-Gordon Limitations on Authority RepresentativesPage Owner Warranty Registration Card Page Page Clearances to Combustibles