Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden CTH2-80, CTH2-125, CTH2-100, CTH2-150, CTH2-175 service manual Description, Part Number

Models: CTH2-40 CTH2-60 CTH2-175 CTH2-150 CTH2-100 CTH2-80 CTH2-125

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	SECTION 13: REPLACEMENT PARTS

Description	Part Number
Gas Valve (Natural)	90068300
Gas Valve (LP)	90068302
	02568200
Tube Gasket	02568200
Blower Inlet Gasket	03050900
	90708600-P
Motor and Blower Assembly	90708600-P
Air Adapter Collar	91911700
	90436800
Door Switch	90436800
Burner Cup Assembly	03020100
	90436603K
Hot Surface Igniter	90436603K
Mica Window Assembly	02553203
	90439300
Flame Sensor	90439300
Transformer	90436900K
	91317900
Thermostat Connection	91317900
Jumper Wire	03090900

Pressure Switch:
(175)	90439802K
	90439803K
(100)	90439803K
(80,150)	90439810K
	90439805K
(40, 60, 125)	90439805K

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Roberts Gorden CTH2-80, CTH2-125, CTH2-100, CTH2-150, CTH2-175, CTH2-40 CTH2-60 service manual Description, Part Number

Contents

Service Manual Installation, Operation &Vantage Gas-Fired,Low IntensityPage 2012 Roberts-GordonLLC TABLE OF CONTENTSPage LIST OF TABLES TABLE OF FIGURESPage 1.1 Manpower Requirements SECTION 1: HEATER SAFETY1.2 Safety Labels and Their Placement 1.3 California PropositionLogo Label FIGURE 1: Top and Bottom Panel Label PlacementBottom Rating Plate LabelClearances to Combustibles Label Wiring Label FIGURE 2: Side and Back Panel Label PlacementControl Side Panel Control Side Panel Inside Thermostat Connection Label Back Panel2.1 Wall Tag SECTION 2: INSTALLER RESPONSIBILITY2.2 Corrosive Chemicals 2.3 National Standards and Applicable Codesinches FIGURE 3: STANDARD REFLECTORcentimeters ModelFIGURE 6 45 TILT REFLECTOR FIGURE 4: ONE SIDE REFLECTORinches centimetersinches A B C D UNAPPROVED FIGURE 7: U-TUBE,STANDARD REFLECTORcentimeters A B C D UNAPPROVED FIGURE 8: U-TUBE,45FIGURE 12: VENTING FIGURE 11: LOWER CLEARANCE SHIELDinches centimeters4.2 Aircraft Hangars 4.1 Gas Codes4.3 Public Garages 4.4 ElectricalReflector Support Strap & Wire Form Coupling AssemblySECTION 5: MAJOR COMPONENTS FIGURE 13: Major Component DescriptionsTable 1: Contents of the Burner Carton 5.1 Standard Parts ListTable 2: Contents of Core and Extension Packages Part NoTubing Length Table 3: Component Package GuideCore Packages MinimumSECTION 6: HEATER INSTALLATION Typical Suspension Details FIGURE 14: Critical Hanger PlacementTube Clamp Package FIGURE 15: Linear Heater Assembly OverviewLEGEND FIGURE 16: Linear Heater Layout Overview60 Tube Length 50 Tube Length70 Tube Length 80 Tube LengthStep 6.2 Tube Clamp Package Installation Step 6.1 Burner Tube InstallationTube Clamp BoltStep 6.3.1 Coupling and Tube Assembly Continued Step 6.3 Coupling and Tube Assembly± 2 5 cm DescriptionStep 6.4 Turbulator Installation Step 6.3.2 Coupling and Tube Assembly Continuedw i s t SECTION 6: HEATER INSTALLATION Step 6.5 Reflector InstallationFire Hazard Reflector must not touch tubeThe pictorial drawings of the heater construction in Section 6 are schematic only and provide a general guideline of where hangers, reflector supports and U-clipsare to be installed SECTION 6: HEATER INSTALLATION Step 6.6 Burner Installationwith the flame observation Description7.1 U-TubeConfiguration SECTION 7: OPTIONAL HEATER ACCESSORIESSECTION 7: OPTIONAL HEATER ACCESSORIES FIGURE 18: U-TubeHeater Assembly OverviewFIGURE 19: U-TubeHeater Layout Overview 50 Tube Length FIGURE 20 U-TubeHeater Layout Overview Continued60 Tube Length 70 Tube LengthStep 7.2.3 Reflector Joint Installation Step 7.2.2 Elbow InstallationBurner and Elbow ModelStep 7.2.5 Reflector Joint Detail Step 7.2.4 Reflector Joint InstallationFIGURE 21: Reflector Joint Detail SECTION 7: OPTIONAL HEATER ACCESSORIESStep 7.3.2 Side Reflector Installation Reflector Description Step 7.5.2 Frame Shield InstallationDistance A ExtensionStep 7.6.3 Grille Installation Step 7.6.2 Grille End Cap Installation8.1 General Venting Requirements SECTION 8: VENTING8.1.1 United States Requirements 8.1.2 Canadian Requirements8.4 Vertical Venting 8.3 Horizontal Venting8.5 Unvented Operation Tube Termination 8.6 Length RequirementsStep 8.9 Common Sidewall Venting 8.8 Vertical Ventilation 4 10 cm PipeRequirements •Heaters must be of the same BTU outputRequirements 8.10 Common Vertical Venting•Heaters must be of the same BTU output SECTION 8: VENTING8.11.1 Length Requirements 8.11 Outside Combustion Air SupplyRequirements RequirementsSECTION 9 GAS PIPING when attaching gas hose FIGURE 23: Gas Connection with Flexible Gas HoseINCORRECT POSITIONS WRONG INSTALLATION CORRECT POSITIONS10.1 Line Voltage Thermostat Wiring SECTION 10: WIRINGDANGER 10.2 Low Voltage Thermostat with One BurnerTransformer Relay 10.4 Internal WiringFRONT VIEW BACK VIEW10.6 Electrical Connection to the Burner 10.5 Ladder Diagram11.4Pre-SeasonMaintenance and Annual Inspection SECTION 11: OPERATION AND MAINTENANCE11.1 Sequence of Operation 11.2 To Shut Off HeaterInstallation Code and Annual Inspections 11.5 Maintenance ChecklistThe Vicinity of the Heater See Page 5, SectionGas Line Safety LabelsBurner Observation WindowDANGER SECTION 12: TROUBLESHOOTINGLED Status 12.1 Honeywell SmartValve II TroubleshootingIndicates Section12.2 Troubleshooting Flow Chart SECTION 12: TROUBLESHOOTING Natural Propane 12.3 Manifold Gas Pressure SettingTop View of Heater OrificeSECTION 13: REPLACEMENT PARTS SECTION 13: REPLACEMENT PARTSDANGER Motor and Blower Assembly Part Number Description14.1Material Specifications 14.1.1 Reflectors SECTION 14: GENERAL SPECIFICATIONS14.2Heater Specifications 14.2.1 Ignition 14.3 Suspension SpecificationsROBERTS-GORDONWILL PAY FOR WARRANTY IS VOID IFROBERTS-GORDONWILL NOT PAY FOR LIMITATIONS ON AUTHORITY OF REPRESENTATIVESPage Page Page