Roberts Gorden Combat UHD[X][S][R] 75 Service Manual

Installation, Operation& Service ManualModels UHD[X][S][R]150, 175, 200, 225250, 300, 350, 400P/N 113001NA 11/08 Orig.UHD-SeriesTubular Duct Furna

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL4 3.6 VentilationIt is important to ensure that there is adequate air space around

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES5SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES4.1 Gas CodesThe type of gas appearing on the nam

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL6 4.6 High AltitudeThese heaters are CSA-approved (without modifications) for insta

SECTION 5: DUCT HEATER INSTALLATION7SECTION 5: DUCT HEATER INSTALLATION5.1 General To connect the inlet and outlet ducts to the heater, Duct-Mate or s

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL8 5.1.3 Air Flow And Temperature Rise Ranges5.2 SuspensionFour suspension points (3

SECTION 6: VENTING9SECTION 6: VENTING6.1 Changing Vent and Air Intake OrientationThe heater is sold with rear horizontal vent and air intake connectio

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL10 Vents and air intakes must be adequately supported so that the heater does not b

SECTION 6: VENTING11The entire vent should be insulated with foil faced fiberglass insulation (1/2" thick, 1-1/2# density minimum).6.7.1 Maximum

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL12 Figure 5: Standard Vented Heater - Vertical and Horizontal Vent TerminationFigur

SECTION 6: VENTING13Figure 7: Separated Combustion Heater - Vertical and Horizontal Vent TerminationFigure 8: Concentric Vent BoxVentTermination12&quo

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL14 Figure 9: Concentric Vertical and Horizontal Vent Termination - Separated Combus

SECTION 7: AIR SUPPLY15SECTION 7: AIR SUPPLY7.1 Separated Combustion InstallationWhen installed as a separated combustion heater (UHD[X]S[R]), the air

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL16 SECTION 8: GAS PIPINGA gas meter is connected to the service pipe by the gas sup

SECTION 9: WIRING17SECTION 9: WIRINGAll heater models require constant 120 V/1Ø/60 Hz power supply. Check heater rating plate for electrical rating fo

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL18 9.3 Internal Wiring DiagramIMPORTANT:For field wiring into service junction box,

SECTION 9: WIRING199.4 Ladder Wiring DiagramIMPORTANT:For field wiring into service junction box, or if any of the original wire supplied with the hea

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL20 9.5 Electrical Connection to the HeaterIMPORTANT: Junction box is not provided w

SECTION 10: OPERATION AND MAINTENANCE21SECTION 10: OPERATION AND MAINTENANCERead this manual carefully before installation, operation, or service of t

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL22 Figure 11: Automatic Burner Control SequenceFigure 12: Gas ValveBurner Sequence

SECTION 10: OPERATION AND MAINTENANCE2310.2.2 Start-Up the Gas Valve (All Gases)10.2.2.1 Check Burner Gas Pressure1. Remove the plug in the outlet (bu

© 2008 Roberts-Gordon LLCAll rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL24 SECTION 11: USER INSTRUCTIONS11.1 User InstructionsThe UHD[X][S][R] Series heate

SECTION 12: SERVICING25SECTION 12: SERVICING12.1 Servicing InstructionsAfter start-up, the heater will require maintenance to be carried out annually.

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL26 12.7 Maintenance ChecklistInstallation Code and Annual Inspections: All installa

SECTION 12: SERVICING27Gas Line and Shut-off ValvesCheck for gas leaks.See Page 16, Section 8.Burner Observation WindowMake sure it is clean and free

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL28 SECTION 13: TROUBLESHOOTING13.1 GeneralFan and limit switch are operating normal

SECTION 13: TROUBLESHOOTING2913.2 Troubleshooting For Automatic Ignition Burner SystemsIf problems persist, contactRoberts-Gordon LLC atwww.rg-inc.com

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL30 13.3 Troubleshooting for Flame Supervision SystemNOTE: Minimum flame probe curre

SECTION 13: TROUBLESHOOTING3113.4 Troubleshooting for Gas Valves13.5 Troubleshooting for Flue Blower Valve faulty.Replace with one of correct type.Fau

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL32 SECTION 14: REPLACEMENT PARTSSee warnings and important information on Page 25,

SECTION 14: REPLACEMENT PARTS3314.2 Burner Compartment14.2.1 Burner InjectorsMODELUHD[X][S][R]150UHD[X][S][R]175UHD[X][S][R]200UHD[X][S][R]225UHD[X][S

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL34 14.3 Ignition Electrode and Flame ProbeDescription Part Number Qty.Spark Electro

SECTION 14: REPLACEMENT PARTS3514.4 Heat Exchanger The heat exchanger consists of a four-pass design with 1.75" outer diameter [409 stainless ste

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL36 14.6 Pressure SwitchPull off 3 way connector. Spring open plastic clips of mount

SECTION 15: SPECIFICATIONS37SECTION 15: SPECIFICATIONS15.1 Dimension Data 2.4"(6 cm)ABREAR VIEWEND VIEWHJTOP VIEWHeater must be supportedat these

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL38 15.2 General Technical Data Table* Do not exceed the maximum length of flue stat

SECTION 16: THE ROBERTS GORDON® COMBAT® UHD-SERIES WARRANTY39SECTION 16: THE ROBERTS GORDON® COMBAT® UHD-SERIES WARRANTYROBERTS GORDON® WILL PAY FOR:

®OWNER WARRANTY REGISTRATION CARDAbout the Owner:Name:________________________________________________________________________________________________

TABLE OF FIGURESFigure 1: Clearances to Combustibles ...3Figure 2: Air Flow Direction...

WARNING© 2008 Roberts-Gordon LLC www.rg-inc.com

SECTION 1: HEATER SAFETY1SECTION 1: HEATER SAFETYYour Safety is Important to Us!This symbol is used throughout the manual to notify you of possible fi

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL2 SECTION 2: INSTALLER RESPONSIBILITYThe installer is responsible for the following

SECTION 3: CRITICAL CONSIDERATIONS3SECTION 3: CRITICAL CONSIDERATIONS3.1 Basic InformationUHD[X][S][R] heaters have automatic ignition burners for ON/