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Roberts Gorden 30, 75, 100, 125, 45, 60 service manual Flue Blower Vertical Installation

Models: 60 30 45 125 100 75

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14.6 Flue Blower Vertical Installation

UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL

14.6 Flue Blower Vertical Installation

		Intake &
		Exhaust
		Covers
		Mounting Plate
		to Vent Box
		fixing screws
	Air Intake	Gaskets
	Adaptor	Gaskets
	Adaptor
		Vent Box
		Mounting Plate
		to Flue Blower
		screws
	Intake &	Air Intake Adapter
	Intake &
	Exhaust
	Covers
		Gasket
		Flexible Air
		Duct

Mounting Plate

to Vent Box

fixing screws

NOTE: Seperated combustion model shown.

To remove the blower, remove screws securing the fan and mounting plate to the vent box.

To remove the blower from the mounting plate, remove screws.

Refit in reverse order.

To change the vent and air intake orientation from back to top, remove the blower and mounting plate as above.

Remove intake (if applicable) and exhaust covers from top of the heater.

Rotate the blower, mounting plate and gasket clockwise until the flue adapter lines up with the top hole. Secure screws.

If applicable, remove the flexible air duct from the air intake adapter on the back.

If applicable, remove the air intake adapter from the back of the heater and install in the appropriate hole on top. Reconnect the flexible air duct.

Install intake and exhaust covers over the back holes.

MODEL

Flue Blower P/N

UHA[X][S] 30 -75	UHA[X][S] 100 - 125
90710404	90710405

IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE IS USED WHEN REPLACING THESE ITEMS.

Carry out a start-up after working on or changing an flue blower. See Page 33, Section 11.

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Image 52

Roberts Gorden 30, 75, 100, 125, 45, 60 service manual Flue Blower Vertical Installation

Contents

Installation, Operation & Service Manual BlackheatUHA-Series Tubular Unit Heaters Low Profile Range Models UHAXS 30, 45, 60, 75, 100,Page 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 Figure 1: UHA 30 - 45 Label Placement For separated combustion units onlyFigure 2: UHA 60 - 75 Label Placement For separated combustion units onlyFigure 3: UHA 100 - 125 Label Placement For separated combustion units onlySECTION 2: INSTALLER RESPONSIBILITY 2.1 Wall Tag2.2 Corrosive Chemicals 2.3 National Standards and Applicable Codes3.4 Minimum Required Installation Clearances 3.2 Manufactured Units3.5 Clearances to Combustibles 3.6 Ventilation3.8 Electrical Supply 3.7 Gas Supply3.9 Vent 4.1 Gas Codes 4.2 Aircraft Hangars4.3 Parking Structures and Repair Garages 4.4 Electrical4.6 High Altitude SECTION 5: MAJOR COMPONENTS 5.1 General 5.2 Shelf Mounting and Suspension5.3 Wall Mounting Crush Hazard Use 3/8 threaded rod minimumFigure 6: Shelf-MountingMethods Figure 5: Suspension MethodsExisting cabinet screws must be re-used Description Part NumberWall Shelf Mounting Bracket Kit DescriptionFigure 8: Vertical Louvers Optional Push inlouver and compress spring to remove6.3 Vent Installation SECTION 6: VENTING6.1 Changing Vent and Air Intake Orientation 6.2 Venting6.4 Unvented Operation 6.3.1Standard Vented Heaters Models UHAX 30 -6.5 Horizontal Venting 6.6 Vertical Venting 6.7 Length Requirements6.7.1 Maximum Vent Lengths 6.8 Vent MaterialFigure 9: Vent and Roof Detail VerticalHorizontal OptionPage Figure 13: Concentric Vent Box Vertical OptionHorizontal OptionVent Terminal 7.1 Separated Combustion Installation 7.2 Unvented InstallationSECTION 7: AIR SUPPLY 7.3 Building Ventilation8.1 Connections SECTION 8 GAS PIPINGFigure 15: Gas Connection SECTION 9: WIRING 9.1 Positioning Thermostats9.1.1 Fan Control 9.2 Low Voltage Thermostat with One HeaterModel Relay TypeRelay Part Number UHAXS 30 -UHAXS 60 - DPST90436300 Max. Number of Heaters9.5 Internal Wiring Diagram 9.6 Ladder Wiring Diagram 9.7 Electrical Connection to the Heater SECTION 10: OPERATION AND MAINTENANCE 10.1 Pre-Start-UpChecks10.1.1 Louvers 10.1.2 Electrical ChecksFigure 16: Automatic Burner Control Sequence Figure 17 Gas Valve for Models UHAXSRequired Incoming Signals Signals Output By Control10.2.3 Pressure Switch Figure 18: Gas Valve for Models UHAXS 60 -Check Gas Rate 10.2.4 Turning Off the Heater10.3 Complete Start-Up 10.2.5 External Controls10.3.1 Instruction to the User Reset Limit Switch - See Page 33, Section Figure 19: Manual Reset Limit SwitchSECTION 11: USER INSTRUCTIONS 11.1 User Instructions11.5 Simple Troubleshooting 11.5.1 Simple Troubleshooting Burner FaultsFigure 20: LED Diagnostic Codes 11.4.2 To Turn the Heater Off12.2 Burner Maintenance 12.3 Fan/Motor Assembly Maintenance12.4 Heat Exchanger Maintenance 12.5 Gas Valve Maintenance12.8 Maintenance Checklist 12.7 Venting and Air Intake PipeThe Vicinity of the Heater See Page 6, Sectionwhen installed Combustion Air IntakePipe Heat ExchangerSECTION 13 TROUBLESHOOTING 13.1 General STARTSECTION 13: TROUBLESHOOTING 13.3 Troubleshooting for Flame Supervision System 13.4Troubleshooting for Gas Valves 13.5Troubleshooting for Flue BlowerCorrect power STARTBurner Components SECTION 14: REPLACEMENT PARTS14.1 Gas Valve 14.2 Burner Compartment 14.2.1 Burner Injectors14.3 Ignition Electrode and Flame Probe 14.4 Heat Exchanger 14.5 Louver and Louver SpringsInstall Vertical screws Horizontal14.6 Flue Blower Vertical Installation 14.9 Axial Fan/Guard/Motor Assembly 14.7 Pressure Switch14.8 Ignition Control 14.9.1 Fan Removal and Replacement 14.9.2 To Replace the Fan Assembly14.10 Limit Switches 14.10.1 Removal and ReplacementSECTION 15: SPECIFICATIONS 15.1 Dimension Data TOP VIEWSIDE VIEW REAR VIEW15.2 General Technical Data Table All Models 15.3 Technical Data Table All ModelsWARRANTY IS VOID IF ROBERTS GORDON WILL PAY FORROBERTS GORDON WILL NOT PAY FOR Roberts-GordonPage OWNER WARRANTY REGISTRATION CARD About the InstallerPurchased From if different than installer Type of Installation check onePage Page Installation Clearances Fire Hazardclose to heater injury or property damage