Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden UHA[X][S] 30, UHA[X][S] 45, UHA[X][S] 125 Heater Safety, Manpower Requirements

Models: UHA[X][S] 75 UHA[X][S] 60 UHA[X][S] 100 UHA[X][S] 125 UHA[X][S] 30 UHA[X][S] 45

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SECTION 1: HEATER SAFETY

SECTION 1: HEATER SAFETY

SECTION 1: HEATER SAFETY

Your Safety is Important to Us! This symbol is used throughout the manual to notify you of possible fire, electrical or burn hazards. Please pay special

attention when reading and following the warnings in these sections.

Installation, service and annual inspection of heater must be done by a contractor qualified in the installation and service of gas-fired heating equipment.

Read this manual carefully before installation, operation or service of this equipment.

Not all heaters are approved for residential installation. Check the heater’s silver rating plate for residential approval status. Heaters that do not have residential approval must not be installed in residential spaces. These instructions, the layout drawing, local codes and ordinances and applicable standards that apply to gas piping, electrical wiring, venting, etc. must be thoroughly understood before proceeding with the installation.

Protective gear is to be worn during installation, operation and service. Thin sheet metal parts, including the various venting components, have sharp edges. To prevent injury, the use of work gloves is recommended.

Before installation, check that the local distribution conditions, nature of gas and pressure and adjustment of the appliance are compatible.

1.1 Manpower Requirements

To prevent personal injury and damage to the heater, two persons will be required for installation.

1.2 Safety Labels and Their Placement

Product safety signs or labels should be replaced by product user when they are no longer legible. Please contact Roberts Gordon LLC or your ROBERTS GORDON® independent distributor to obtain replacement signs or labels. See Page 2, Figure 1 through Page 4, Figure 3.

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Roberts Gorden UHA[X][S] 30, UHA[X][S] 45 Heater Safety, Manpower Requirements, Safety Labels and Their Placement

Contents

Models UHAXS 30, 45, 60, 75, 100, Installation, Operation & Service ManualCombat UHA-Series Tubular Unit Heaters Low Profile RangePage 2008 Roberts-GordonLLC TABLE OF CONTENTSPrinted in U.S.A Page TABLE OF FIGURES Page 1.1 Manpower Requirements SECTION 1: HEATER SAFETY1.2 Safety Labels and Their Placement For separated combustion units only Figure 1: UHA 30 - 45 Label Placement For separated combustion units only Figure 2: UHA 60 - 75 Label Placement For separated combustion units only Figure 3: UHA 100 - 125 Label Placement 2.3 National Standards and Applicable Codes SECTION 2: INSTALLER RESPONSIBILITY2.1 Wall Tag 2.2 Corrosive Chemicals 3.6 Ventilation 3.4 Minimum Required Installation Clearances3.2 Manufactured Units 3.5 Clearances to Combustibles 3.8 Electrical Supply 3.7 Gas Supply3.9 Vent 4.4 Electrical 4.1 Gas Codes4.2 Aircraft Hangars 4.3 Parking Structures and Repair Garages 4.6 High Altitude Crush Hazard Use 3/8 threaded rod minimum SECTION 5: MAJOR COMPONENTS 5.1 General5.2 Shelf Mounting and Suspension 5.3 Wall Mounting Figure 6: Shelf-MountingMethods Figure 5: Suspension MethodsExisting cabinet screws must be re-used Description DescriptionPart Number Wall Shelf Mounting Bracket Kit spring to remove Figure 8: Vertical Louvers OptionalPush in louver and compress 6.2 Venting 6.3 Vent InstallationSECTION 6 VENTING 6.1 Changing Vent and Air Intake Orientation 6.4 Unvented Operation 6.3.1Standard Vented Heaters Models UHAX 30 -6.5 Horizontal Venting 6.8 Vent Material 6.6 Vertical Venting6.7 Length Requirements 6.7.1 Maximum Vent Lengths Option Figure 9: Vent and Roof DetailVertical HorizontalPage Option Figure 13: Concentric Vent BoxVertical Option Horizontal Vent Terminal 7.3 Building Ventilation 7.1 Separated Combustion Installation7.2 Unvented Installation SECTION 7 AIR SUPPLY 8.1 Connections SECTION 8: GAS PIPINGFigure 15: Gas Connection 9.2 Low Voltage Thermostat with One Heater SECTION 9: WIRING9.1 Positioning Thermostats 9.1.1 Fan Control UHAXS 30 - ModelRelay Type Relay Part Number Max. Number of Heaters UHAXS 60 -DPST 90436300 9.5 Internal Wiring Diagram 9.6 Ladder Wiring Diagram 9.7 Electrical Connection to the Heater 10.1.2 Electrical Checks SECTION 10: OPERATION AND MAINTENANCE10.1 Pre-Start-UpChecks 10.1.1 Louvers Signals Output By Control Figure 16: Automatic Burner Control SequenceFigure 17: Gas Valve for Models UHAXS 30 - Required Incoming Signals 10.2.4 Turning Off the Heater 10.2.3 Pressure SwitchFigure 18: Gas Valve for Models UHAXS 60 - Check Gas Rate 10.3 Complete Start-Up 10.2.5 External Controls10.3.1 Instruction to the User 11.1 User Instructions Reset Limit Switch - See Page 33, SectionFigure 19: Manual Reset Limit Switch SECTION 11: USER INSTRUCTIONS 11.4.2 To Turn the Heater Off 11.5 Simple Troubleshooting11.5.1 Simple Troubleshooting Burner Faults Figure 20: LED Diagnostic Codes 12.5 Gas Valve Maintenance 12.2 Burner Maintenance12.3 Fan/Motor Assembly Maintenance 12.4 Heat Exchanger Maintenance See Page 6, Section 12.8 Maintenance Checklist12.7 Venting and Air Intake Pipe The Vicinity of the Heater Heat Exchanger when installedCombustion Air Intake Pipe START SECTION 13: TROUBLESHOOTING 13.1 General SECTION 13: TROUBLESHOOTING 13.3 Troubleshooting for Flame Supervision System START 13.4Troubleshooting for Gas Valves13.5Troubleshooting for Flue Blower Correct power Burner Components SECTION 14 REPLACEMENT PARTS14.1 Gas Valve 14.2.1 Burner Injectors 14.2 Burner Compartment 14.3 Ignition Electrode and Flame Probe Horizontal 14.4 Heat Exchanger14.5 Louver and Louver Springs Install Vertical screws 14.6 Flue Blower Vertical Installation 14.9 Axial Fan/Guard/Motor Assembly 14.7 Pressure Switch14.8 Ignition Control 14.10.1 Removal and Replacement 14.9.1 Fan Removal and Replacement14.9.2 To Replace the Fan Assembly 14.10 Limit Switches REAR VIEW SECTION 15: SPECIFICATIONS 15.1 Dimension DataTOP VIEW SIDE VIEW 15.3 Technical Data Table All Models 15.2 General Technical Data Table All Models Roberts-Gordon WARRANTY IS VOID IFROBERTS GORDON WILL PAY FOR ROBERTS GORDON WILL NOT PAY FORPage Type of Installation check one OWNER WARRANTY REGISTRATION CARDAbout the Installer Purchased From if different than installerPage Page injury or property damage Installation ClearancesFire Hazard close to heater