Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden UHA[X][S] 30, UHA[X][S] 45 Vertical Louvers Optional, Push in, louver and compress

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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Figure 8: Vertical Louvers (Optional)

SECTION 5: MAJOR COMPONENTS

Figure 8: Vertical Louvers (Optional)

Remove horizontal louvers.

Install vertical louvers brackets (top and bottom) with supplied screws.

Push in	Install vertical
Push in	louvers and springs
louver and compress	into brackets
spring to remove	with springs at top.
(opposite end first)

Description	Part Number	Qty.
Vertical Louver Kit UHA[X][S] 30 &	12011003K
UHA[X][S] 45	12011003K
UHA[X][S] 45
Vertical Louver Bracket	11111903	2
#10 Screw	94311008	4
UHA[X][S] 30 - 45 Vertical Louvers	11111901	5
Louver Spring	90901200	2
Instruction Sheet	91040036	1

Description	Part Number	Qty.
Vertical Louver Kit UHA[X][S] 100 &	12011004K
UHA[X][S] 125	12011004K
UHA[X][S] 125
Vertical Louver Bracket	11111903	2
#10 Screw	94311008	4
UHA[X][S] 100 - 125 Vertical Louvers	11111902	5
Instruction Sheet	91040036	1

Description	Part Number	Qty.
Vertical Louver Kit UHA[X][S] 60 &	12011005K
UHA[X][S] 75	12011005K
UHA[X][S] 75
Vertical Louver Bracket	11111903	2
#10 Screw	94311008	4
Instruction Sheet	91040036	1

For models UHA[X][S] 60 and UHA[X][S] 75, horizontal louvers are re-used.

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Roberts Gorden UHA[X][S] 30 Vertical Louvers Optional, Push in, louver and compress, spring to remove, opposite end first

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 PlacementFor separated combustion units only Figure 2: UHA 60 - 75 Label PlacementFor separated combustion units only Figure 3: UHA 100 - 125 Label Placement2.3 National Standards and Applicable Codes SECTION 2: INSTALLER RESPONSIBILITY2.1 Wall Tag 2.2 Corrosive Chemicals3.6 Ventilation 3.4 Minimum Required Installation Clearances3.2 Manufactured Units 3.5 Clearances to Combustibles3.8 Electrical Supply 3.7 Gas Supply3.9 Vent 4.4 Electrical 4.1 Gas Codes4.2 Aircraft Hangars 4.3 Parking Structures and Repair Garages4.6 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 MountingFigure 6: Shelf-MountingMethods Figure 5: Suspension MethodsExisting cabinet screws must be re-used Description DescriptionPart Number Wall Shelf Mounting Bracket Kitspring to remove Figure 8: Vertical Louvers OptionalPush in louver and compress6.2 Venting 6.3 Vent InstallationSECTION 6 VENTING 6.1 Changing Vent and Air Intake Orientation6.4 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 LengthsOption Figure 9: Vent and Roof DetailVertical HorizontalPage Option Figure 13: Concentric Vent BoxVertical Option HorizontalVent Terminal 7.3 Building Ventilation 7.1 Separated Combustion Installation7.2 Unvented Installation SECTION 7 AIR SUPPLY8.1 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 ControlUHAXS 30 - ModelRelay Type Relay Part NumberMax. Number of Heaters UHAXS 60 -DPST 904363009.5 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 LouversSignals Output By Control Figure 16: Automatic Burner Control SequenceFigure 17: Gas Valve for Models UHAXS 30 - Required Incoming Signals10.2.4 Turning Off the Heater 10.2.3 Pressure SwitchFigure 18: Gas Valve for Models UHAXS 60 - Check Gas Rate10.3 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 INSTRUCTIONS11.4.2 To Turn the Heater Off 11.5 Simple Troubleshooting11.5.1 Simple Troubleshooting Burner Faults Figure 20: LED Diagnostic Codes12.5 Gas Valve Maintenance 12.2 Burner Maintenance12.3 Fan/Motor Assembly Maintenance 12.4 Heat Exchanger MaintenanceSee Page 6, Section 12.8 Maintenance Checklist12.7 Venting and Air Intake Pipe The Vicinity of the HeaterHeat Exchanger when installedCombustion Air Intake PipeSTART SECTION 13: TROUBLESHOOTING 13.1 GeneralSECTION 13: TROUBLESHOOTING 13.3 Troubleshooting for Flame Supervision System START 13.4Troubleshooting for Gas Valves13.5Troubleshooting for Flue Blower Correct powerBurner Components SECTION 14 REPLACEMENT PARTS14.1 Gas Valve 14.2.1 Burner Injectors 14.2 Burner Compartment14.3 Ignition Electrode and Flame Probe Horizontal 14.4 Heat Exchanger14.5 Louver and Louver Springs Install Vertical screws14.6 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 SwitchesREAR VIEW SECTION 15: SPECIFICATIONS 15.1 Dimension DataTOP VIEW SIDE VIEW15.3 Technical Data Table All Models 15.2 General Technical Data Table All ModelsRoberts-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