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FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in
your building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas
supplier after leaving the building.
Follow the gas supplier's
instructions.
8. If you cannot reach your gas
supplier, call the Fire Department.
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required safe
distances to combustibles away from
heater.
Some objects will catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can result in death, injury or
property damage. Read the Installation, Operation
and Service Manual thoroughly before installing or
servicing this equipment.
Installation must be done by a contractor qualified
in the installation and service of gas-fired heating
equipment or your gas supplier.
© 2018 Roberts-Gordon LLC
models built after November 6, 1998.
See Page 3, Section 2.4 for details.
Fuel Conversion
Kit Instructions
Please take the time to read and understand
these instructions prior to any installation.
Installer must give a copy of this manual to the owner.
Keep this manual in a safe place in order to provide
your service technician with necessary information.
Roberts-Gordon LLC
1250 William Street
P.O. Box 44
Buffalo, New York 14240-0044
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
www.robertsgordon.com
Caribe
In-field conversions are only
supported for CGTH series
Installer
Owner
P/N 280100NA Rev. E 09/18
®
CGTH-30
CGTH-40
CGTH-50
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Table of Contents
Related Manuals for Roberts Gorden Caribe CGTH Series
Summary of Contents for Roberts Gorden Caribe CGTH Series
- Page 1 FOR YOUR SAFETY If you smell gas: 1. Open windows. Caribe ® 2. DO NOT try to light any appliance. 3. DO NOT use electrical switches. 4. DO NOT use any telephone in your building. 5. Extinguish any open flame. 6.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1: Heater Safety............1 1.1 Manpower Requirements..........1 1.2 Safety Labels and Their Placement......1 1.3 California Proposition 65 ..........1 SECTION 2: Installer Responsibility ........4 2.1 Thermostat Tag............4 2.2 Corrosive Chemicals............ 4 2.3 National Standards and Applicable Codes ....4 2.4 Identification of Convertible Heaters...... -
Page 5: Section 1: Heater Safety
SECTION 1: H EATER AFETY SECTION 1: HEATER SAFETY Your Safety is Important to Us! appliance. This symbol is used throughout For additional copies of the Installation, Operation the manual to notify you of possi- and Service Manual, please contact Roberts-Gordon ble fire, electrical or burn hazards. - Page 6 CGTH-S ERIES ONVERSION NSTRUCTIONS FIGURE 1: Bottom and Side Panel Label Placement Logo Label Bottom Panel Clearances to Combustibles Label Side Panel Operating Instruction Label Description Part Number Logo Label 91037702 Operating Instruction Label 91037100 Clearances to Combustibles Label 91037800...
- Page 7 SECTION 1: H EATER AFETY FIGURE 2: Control Side and Back Panel Label Placement Description Part Number Shock Hazard Label 91037901 Wiring Diagram Label 91037600 Fire Hazard Label 91037900 Cord Shock Hazard Label 91037500 Thermostat Connection Label 91037902 Carbon Monoxide Hazard label 91037300 Proposition 65 Warning Label 91070016...
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Page 8: Section 2: Installer Responsibility
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 2: INSTALLER RESPONSIBILITY The installer is responsible for the following: 2.2 Corrosive Chemicals • To install the heater, as well as the gas and electri- CAUTION cal supplies, in accordance with applicable specifi- cations and codes. Roberts-Gordon LLC recommends the installer contact a local Building Inspector or Fire Marshal for guidance. -
Page 9: Identification Of Convertible Heaters
SECTION 2: I NSTALLER ESPONSIBILITY 2.4 Identification of Convertible Heaters In-field conversions are only supported for CGTH- Series models built after November 6th,1998. For units built earlier, contact Roberts-Gordon LLC or ® your local ROBERTS GORDON independent distrib- utor. The date of manufacture is available from the serial number on the silver data rating label. -
Page 10: Section 3: For Natural To Propane Conversions Only
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 3: FOR NATURAL TO PROPANE CONVERSIONS ONLY FIGURE 3: Conversion Kit Regulator Installation in Valve (Natural to Propane) 10.5" Gas Conversion Label: P/N 91039400 Spring Kit (blue): P/N 90034400 Orifice: P/N (see Table below) Setscrew P/N 91118009 Door Gasket: P/N 08115100 3.1 Contents of Fuel Conversion Kits (Natural to Propane) All kits include this manual and the CGTH-series Installation, Operation and Service Manual. -
Page 11: Section 4: For Propane To Natural Conversions Only
SECTION 4: F ROPANE TO ATURAL ONVERSIONS SECTION 4: FOR PROPANE TO NATURAL CONVERSIONS ONLY FIGURE 4: Conversion Kit Regulator Installation in Valve (Propane to Natural) Gas Conversion Label: P/N 91039400 3.5" Spring Kit (green): P/N 90034401 Orifice: P/N (see Table below) Door Gasket: P/N 08115100 Setscrew P/N 91118009 4.1 Contents of Fuel Conversion Kits (Propane to Natural) -
Page 12: Section 5: Fuel Conversion Instructions
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 5: FUEL CONVERSION INSTRUCTIONS WARNING DANGER Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Turn off gas supply to Allow heater to cool Wear protective gear Disconnect electric heater before service. before service. during installation, before service. - Page 13 SECTION 5: F ONVERSION NSTRUCTIONS FIGURE 6: Burner, Side View (Internal Assembly) Ignition Lead Sense Wire and Flame Sense Electrode (Behind Ignition Lead) Burner Cup Electrodes Setscrew Step 5.2 Burner Cup Assembly Removal 1. Remove control box door by removing (4) four Phillips head screws.
- Page 14 CGTH-S ERIES ONVERSION NSTRUCTIONS FIGURE 7: Burner, Side View (Internal Assembly) for Step 5.3 Gas Valve Orifice Holder Adapter Burner Box Pipe Nipple Table 1: Orifice Part Numbers Orifice Part Numbers Natural to Propane Propane to Natural Model BTU/hr Size Part Number Size Part Number...
- Page 15 SECTION 5: F ONVERSION NSTRUCTIONS WARNING Explosion Hazard Leak test all components of gas piping before operation. Gas can leak if piping is not installed properly. Do not high pressure test gas piping with heater connected. Failure to follow these instructions can result in death, injury or property damage.
- Page 16 CGTH-S ERIES ONVERSION NSTRUCTIONS FIGURE 8: Burner, Top View (Internal Assembly) for Step 5.4 Regulator Adjustment Screw Step 5.4 Adjust Regulator 1. Remove cap from gas valve/regulator by insert- ing flat blade screwdriver through hole in top of control box. 2.
- Page 17 SECTION 5: F ONVERSION NSTRUCTIONS Step 5.5 Reinstall Burner 1. Reinstall burner cup to its original position; replace setscrew. 2. Reinstall burner access cover plate using the new gasket supplied with the fuel conversion kit. Secure burner access cover plate to the burner box with (8) eight Phillips head screws.
- Page 18 CGTH-S ERIES ONVERSION NSTRUCTIONS FIGURE 9: Manometer Reading DANGER Electrical Shock Hazard Disconnect electric before service. Appliance must be properly grounded. Failure to follow these instructions can result in death or electrical shock.
- Page 19 SECTION 5: F ONVERSION NSTRUCTIONS FIGURE 10: Label P/N 91039400 Enter Data for Natural to Propane Conversions Enter Data for Propane to Natural Conversions Model Propane Orifice Size Model Natural Orifice Size CGTH-30 CGTH-30 CGTH-40 1.8 mm CGTH-40 1/8” CGTH-50 CGTH-50 Step 5.7 Burner Conversion Label Information Step 5.8 Attach Burner Conversion Label...
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Page 20: Section 6: Critical Considerations
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 6: CRITICAL CONSIDERATIONS fabric, etc. Maintain clearances to combustibles at all times for safety. WARNING Clearances for all heater models are located on the burner of the heater and on Page 17 , Figure 12 through Page 17 , Figure 13 in this manual. - Page 21 SECTION 6: C RITICAL ONSIDERATIONS tances from combustibles. The thermostat tag must 3, Figure 2 of the CGTH Installation, Operation and be posted to identify any possible violation of the Service Manual. Immediately contact your indepen- clearance distances from the heater in vehicle areas. dent distributor or manufacturer if the tag is missing.
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Page 22: Section 7: Operation
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 7: OPERATION WARNING DANGER Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Turn off gas supply to Allow heater to cool Wear protective gear Disconnect electric heater before service. before service. during installation, before service. operation and service. - Page 23 SECTION 7: O PERATION FIGURE 14: Pressure Testing Cover Cap and Regulator Screw Outlet Pressure Tap...
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Page 24: Section 8: Troubleshooting
CGTH-S ERIES ONVERSION NSTRUCTIONS SECTION 8: TROUBLESHOOTING DANGER Electrical Shock Hazard Disconnect electric before service. Replace door before operating. Heater must be properly grounded. Failure to follow these instructions can result in death or electrical shock. WARNING Fire Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Keep all flammable... -
Page 25: General
SECTION 8: T ROUBLESHOOTING 8.1 General Installation Code and Annual Inspections: ® All installation and service of ROBERTS GORDON This troubleshooting guide has been designed to equipment must be performed by a contractor quali- assist you in locating and correcting minor problems fied in the installation and service of equipment sold that may occur with the CGTH-Series heater. - Page 26 CGTH-S ERIES ONVERSION NSTRUCTIONS Pressure switch does not operate. Check flue/air supply duct for obstructions; remove any obstructions. Check for loose/leaky air hoses to the pressure switch; repair/replace/ tighten hoses as required. Check for 24V across the secondary terminals 4 and 5 (red and yellow wires) of the transformer. IF NO: Check for 120V across the primary terminals 1 and 3 (black and white wires) of the transformer.
- Page 27 SECTION 8: T ROUBLESHOOTING FIGURE 15: Manometer Reading...
- Page 28 CGTH-S ERIES ONVERSION NSTRUCTIONS BURNER DOES NOT STAY LIT Possible Cause Try this..Damaged wires between DSI Replace wires as required. module and sensing electrode. Faulty DSI module. Replace DSI module. Cracked ceramic at the sensing Replace electrode. electrode. Recirculation of exhaust gases. Check that the 3"...
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Page 29: Section 9: Maintenance
SECTION 9: M AINTENANCE SECTION 9: MAINTENANCE WARNING DANGER Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Turn off gas supply to Allow heater to cool Wear protective gear Disconnect electric heater before service. before service. during installation, before service. operation and service. - Page 30 CGTH-S ERIES ONVERSION NSTRUCTIONS Reflector Support reflector with reflector hanger. Reflector must not touch tube. Make sure there is no dirt, sagging, cracking or distortion. Do not operate if there is sagging, cracking or distortion. Clean outside surface with a damp cloth. Vent Pipe Venting must be intact.
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Page 31: Section 10: The Roberts Gordon ® Caribe ® Warranty
SECTION 10: T ROBERTS GORDON CARIBE ® ® ARRANTY ® ® Roberts-Gordon LLC is not permitted to inspect the SECTION 10: THE ROBERTS GORDON CARIBE damaged controller and/or component parts. WARRANTY READ YOUR INSTALLATION, OPERATION AND ROBERTS-GORDON LLC WILL PAY FOR: SERVICE MANUAL Within 36 months from date of purchase by buyer or 42 If you have questions about your controller, contact your... - Page 33 2017...
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