Roberts Gorden Caribe CGTH-30 Installation & Operation Manual

Gas-fired, low-intensity infrared heaters for residential garages and light industrial/commercial applications

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Summary of Contents for Roberts Gorden Caribe CGTH-30

Page 1 Quality in Any Language™ © Copyright 2005 Roberts-Gordon Gas-Fired, Low-Intensity Infrared Heaters for Residential Garages and Light Industrial/Commercial Installation, Operation & 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 serviceman with necessary information.
Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1: Before You Begin ... 1 1.1 Read This Manual ... 1 1.2 Questions, Comments or Suggestions... 1 SECTION 2: Introduction... 2 2.1 About Roberts-Gordon ... 2 2.2 About the Heater... 2 2.3 Unpacking the Heater ... 2 2.4 Carton Contents of Heaters with Galvanized Venting ..
Page 5 TABLE OF FIGURES Figure 1: Components Identification ... 7 Figure 2: Specifications... 8 Figure 3: Balanced Flue... 11 Figure 4: Horizontal Installations ... 16 Figure 5: 45° Tilted Installations... 16 Figure 6: Shipping Screw... 17 Figure 7: Suspension Details ... 17 Figure 8: Heater Assembly ...
Page 7: Section 1: Before You Begin
SECTION 1: BEFORE YOU BEGIN 1.1 Read This Manual Read this manual carefully before installing or servic- ing this equipment. Improper installation, servicing or maintenance can result in death, injury or property damage. Check the required safe distances from combustibles given on the outside of each burner to make sure that the product is suitable for your appli- cation.
Page 8: Section 2: Introduction
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 2: INTRODUCTION 2.1 About Roberts-Gordon Roberts-Gordon pioneered low-intensity infrared heating systems in 1962 with the introduction of its revolutionary, custom-engineered CORAYVAC tem. After more than 40 years of infrared expertise in commercial and industrial applications, Roberts-Gor- don now offers the CGTH-Series heater for use in residential garages and light industrial/commercial applications.
Page 9: Carton Contents Of Heaters With Galvanized Venting
2.4 Carton Contents of Heaters with Galvanized Venting Please check the cartons. It should contain the items shown on this page. Contact your ROBERTS GORDON independent distributor if any items are missing. (*) Additional package included with select models; also available as an accessory. See Page 5. Heater Assembly: CGTH-30;...
Page 10: Carton Contents Of Heaters With Cox Geelen Venting
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 2.5 Carton Contents of Heaters with Cox Geelen Venting Please check the cartons. It should contain the items shown on this page. Contact your ROBERTS GORDON independent distributor if any items are missing. Heater Assembly: CGTH-30;...
Page 11: Available Accessories For Galvanized Vent
2.6 Available Accessories for Galvanized Vent Vent Terminal Extension P/N 08037000 5' (1524 mm) Balanced Flue Vent (P/N 08039000) includes: (1) 5" (125 mm) Vent Pipe - 60" P/N 90502800 (1) 3" (80 mm) Flue Pipe - 66" P/N 08035000 SECTION 2: I Tjernlund Wall Vent P/N 08033000...
Page 12: Available Accessories For Cox Geelen Vent
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 2.7 Available Accessories for Cox Geelen Vent Roof Venting Kit (P/N 08032100) includes: (1) Elbow 90° P/N 90506001 (1) Storm Collar P/N 90506015 (1) Burner/Vent Adapter (1) Roof Terminal P/N 90506012 50.5” (1283 mm) P/N 90506008 Concentric Flue 250 mm = 10”...
Page 13: Components Identification
2.8 Components Identification FIGURE 1: Components Identification Burner - Contains the electrical components (i.e. blower motor, power transformer, etc.) and gas distri- bution components (i.e. gas valve, etc.) that make the heater work. There are no owner serviceable items contained in this box. Front Fixed Hanger - Provides rigid support and mounting surface for the reflector.
Page 14: Technical Specifications
CGTH I NSTALLATION PERATION AND ERVICE ANUAL Nipple-3/8" (10 mm) NPT - Point at which the gas supply is connected to the heater. Thermostat Connection - Two terminals to which the thermostat wires will be connected. 2.9 Technical Specifications FIGURE 2: Specifications Inputs and Dimensions Model No.
Page 15: Where Can The Heater Be Installed
2.10 Where Can the Heater Be Installed? The CGTH-Series heater is intended for installation in the following areas: • Residential applications, such as: - garages - hobby greenhouses - workshops • Light industrial/commercial applications, such - entranceways - lobby areas - lunch rooms - aircraft hangars (See Page 11, Section 3.5.1 for restrictions)
Page 16: Section 3: Planning
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 3: PLANNING 3.1 General This section provides the following information: • Defines the gas, electric and venting requirements for the CGTH-Series heater. • Specifies the national standards and applicable codes that apply to the gas, electric and venting requirements.
Page 17: Venting Requirements
3.4 Venting Requirements 3.4.1 System Requirements The CGTH-Series heater must be installed with the venting system supplied or with the optional venting kit available from Roberts-Gordon. DO NOT connect this heater to a separate chimney and do not com- mon vent with any other fuel burning appliance. The CGTH-Series heater employs a balanced flue/air venting duct system and must conform to the follow- ing length requirements:...
Page 18 CGTH I NSTALLATION PERATION AND ERVICE ANUAL combustibles must be maintained from vehicles parked below the heater. • When installed over hoists, the required safe dis- tances from combustibles must be maintained from the uppermost point of the combustible materials placed on the hoist.
Page 19: Section 4: Installation
SECTION 4: INSTALLATION 4.1 Safety Equipment Use of the following safety equipment is recom- mended for installation of the CGTH-Series heater: • Work gloves • Safety glasses 4.2 Installation Tools Tools required for the installation of the CGTH-Series heater include at a minimum the following: •...
Page 20: General Venting Guidelines
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 4.5 General Venting Guidelines Regardless of the venting arrangement that will be connected to the heater, the following general guide- lines for venting must be followed: 1. The 3" (80 mm) flue pipe must be centered inside the 5"...
Page 21: Required Safe Distances From Combustibles
SECTION 4: I NSTALLATION 4.6 Required Safe Distances from Combustibles In all situations, the required safe distances from combustibles must be maintained. Combustibles are materials which may catch fire and include many common items such as wood, paper, rubber, fabrics, etc.
Page 22: Figure 4: Horizontal Installations
CGTH I NSTALLATION PERATION AND ERVICE ANUAL FIGURE 4: Horizontal Installations FIGURE 5: 45° Tilted Installations Model CGTH-30 CGTH-40 CGTH-50 *All dimensions are from the reflector. NOTE: All dimensions indicate the required safe distances from combustibles. Dimensions "C" and "E" DO NOT indicate the required mounting height.
Page 23: Hang The Heater
4.7 Hang the Heater Residential garages come in a variety of sizes, shapes, styles and methods of construction. Because of all these variables, it is not possible to include mounting hardware with the CGTH-Series heater. Although wooden rafters and joists are the most common overhead structural members in resi- dential garage applications, other structural configu- rations are also illustrated below.
Page 24: Typical Installation
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 4.10 Typical Installation Figure 9 is a typical installation of the CGTH-Series heater. The installation drawing shown has a straight horizontal venting arrangement and specifies the minimum space required for maintenance, as well as the allowable range of distances between the two suspension points.
Page 25: Tilted Installation
FIGURE 10: Horizontal Installation 4.13 45° Tilted Installation For tilted installations: 1. Determine if the heater is going to be tilted left or tilted right (Figure 11). Select the suspension point for left or right tilting. Two suspension points must be used for the front hanger.
Page 26: Grille Installation (For Select Models Only)
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 4.14 Grille Installation (for Select Models Only) A protective grille is included with select models of the CGTH-Series heater. This grille is supplied in sections and must be installed on the underside of the reflector prior to operation.
Page 27: Section 5: Venting Installation
SECTION 5: VENTING INSTALLATION Vent configuration 1 is for the galvanized vent mate- rial, See Pages 22 through 25. Vent configuration 2 is for the Cox Geelen vent material, See Pages 26 through 30. The galvanized vent material is available for horizontal installation only.
Page 28: Galvanized Horizontal Venting
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 5.3 Galvanized Horizontal Venting After the heater has been properly suspended in accordance with the preceding headings of this sec- tion, proceed to install the venting as described below (See Page 23, Figure 16): 1.
Page 29: Figure 16: Horizontal Installation Side View
FIGURE 16: Horizontal Installation Side View 5.3.1 Bird Screen Installation The bird screen supplied with the heater must always be installed with the galvanized vent option. The screen is to be installed directly in the end of the 3" (80 mm) flue pipe or in the vent terminal extension available as an option.
Page 30: Figure 18: Horizontal Installation Top View
CGTH I NSTALLATION PERATION AND ERVICE ANUAL surface of the burner. Note this dimension here ________. 2. Using the tape measure, transfer this measure- ment to the inside surface of the exterior wall that the vent will penetrate; make a reference mark. Check the location of the hole to ensure that there are no internal wall structures (i.e.
Page 31: Figure 21: Elbow Assembly
9. Attach 3" (80 mm) elbow portion of 90° elbow kit to the 3" (80 mm) flue pipe (length 'A'). Use high temperature silicone sealant and 3 sheetmetal screws. (See Figure 21) FIGURE 21: Elbow Assembly 10. Completely assemble the 3” (80 mm) vent lengths A, B and elbow and attach to the heater.
Page 32: Figure 24: Assembly Overview
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 5.3.3 Vent Assembly Overview The figures in this section provide a general overview of a Cox Geelen vent for the CGTH-Series burner. Assemble the heater components as shown in Figure 24. FIGURE 24: Assembly Overview Burner/Vent Adapter Wall Terminal 570 mm = 22.5”...
Page 33: Cox Geelen Horizontal Venting
5.4 Cox Geelen Horizontal Venting After the heater has been properly suspended in accordance with the preceding headings of this sec- tion, proceed to install the venting as described below: 1. Using a tape measure, measure the distance from the floor to the center of the vent collar on the rear surface of the burner.
Page 34: Figure 26: Flue Collar And Adapter
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 4. Install the vent adapter (P/N 90506012) and secure with #8 x 3/8” sheet metal screws as shown in Figure 26. 5. If the concentric vent has to be cut (see note on Page 28), follow instructions A-E (see Figure 27).
Page 35: Cox Geelen Vertical Venting
5.5 Cox Geelen Vertical Venting After the heater has been properly suspended in accordance with the preceding headings of this sec- tion, proceed to install the venting as described below. Be sure to observe the General Venting Guidelines on Page 14, Section 4.5. FIGURE 28: Vertical Venting Configurations Table 2: Components Part Number...
Page 36: Figure 29: Vent Clamp
CGTH I NSTALLATION PERATION AND ERVICE ANUAL Fit fasteners progressively outwards in pairs avoiding gaps over 1.5” (38 mm). 5. With the vent collar on the burner, install the addi- tional vent pipe. Push the plain end of the vent into the silicone gaskets.
Page 37: Section 6: Electrical Service Installation
SECTION 6: ELECTRICAL SERVICE INSTALLATION 6.1 System Requirements The CGTH-Series heater requires a grounded three- prong electrical outlet to be installed within 18" (46 cm) of the rear surface of the heater's burner. It is rec- ommended that the outlet for the heater be ceiling- mounted and should be on a dedicated circuit.
Page 38: Figure 31: Thermostat Installation Rear View
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 2. Route thermostat wiring between the thermostat and the rear of the heater. Carefully staple the wires so as not to damage them and to produce a professional appearing installation. 3.Connect thermostat wires to the "THERMOSTAT CONNECTION"...
Page 39: Section 7: Gas Service Installation
SECTION 7: GAS SERVICE INSTALLATION 7.1 Install Gas Supply Lines A 3/8" gas supply connection is required as shown in Figure 32. To check system pressure, a plugged 1/8" NPT tapping is required upstream of the manual gas shut-off valve supplied with the heater. Before connecting the heater to the supply system, (Figure 32) verify that all high pressure testing of the gas piping has been completed.
Page 40: Section 8: Operation
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 8: OPERATION 8.1 Operating Instructions 1. Set the thermostat to the lowest setting. 2. Turn off all electric power to the heater. 3. Do not try to light the burner by hand. 4.
Page 41: Figure 33: Pressure Testing
SECTION 8: O PERATION FIGURE 33: Pressure Testing...
Page 42: Section 9: Troubleshooting
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 9: TROUBLESHOOTING 9.1 General This troubleshooting guide has been designed to assist you in locating and correcting minor problems that may occur with the CGTH-Series heater. Installation Code and Annual Inspections: All installations and service of ROBERTS GORDON must be performed by a contractor qualified in the installation and service of gas-fired heating equipment and conform to all requirements set forth in the ROBERTS GORDON governmental authorities pertaining to the installation, service and operation of the equipment.
Page 43: Burner Does Not Light
Pressure switch does not operate. Igniter spark gap incorrect. BURNER DOES NOT LIGHT Possible Cause Air in the gas line. Improper gas inlet pressure. Gas valve does not open. Low gas outlet pressure. Check flue/air supply duct for obstructions; remove any obstructions. Check for loose/leaky air hoses to the pressure switch;...
Page 44: Figure 34: Manometer Reading
CGTH I NSTALLATION PERATION AND ERVICE ANUAL FIGURE 34: Manometer Reading...
Page 45 BURNER DOES NOT STAY LIT Possible Cause Damaged wires between DSI module and sensing electrode. Faulty DSI module. Cracked ceramic at the sensing electrode. Recirculation of exhaust gases. BURNER CYCLES ON AND OFF TOO QUICKLY Possible Cause Anticipator setting on the thermostat is too low Try this...
Page 46 CGTH I NSTALLATION PERATION AND ERVICE ANUAL BURNER MAKES VIBRATING NOISES WHILE RUNNING Possible Cause Motor Vibration Protective Grille metal fingers touch reflector Try this... Ensure that the shipping screw has been removed from the control housing door. See Page 17 , Section 4.8. Isolate the grille finger that is making the noise and cap it with a silicone cap.
Page 47: Section 10: Maintenance
SECTION 10: MAINTENANCE 10.1 Pre-Season Maintenance For best performance, the following maintenance procedures must be performed by a contractor quali- fied in the installation and service of gas-fired heating equipment before each heating season: 1. Due to high temperature, ensure that the heater area is kept clear of clothing, furniture, draperies or other combustible materials, gasoline and other flamable vapors and liq-...
Page 48: Section 11: Wiring Diagrams
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 11: WIRING DIAGRAMS 11.1 Connection Diagram FIGURE 35: Connection Diagram If any of the original wire as supplied with the heater must be replaced, it must be replaced with wiring material having a temperature rating of at least 105°C and 600 volts.
Page 49: Ladder Diagram
SECTION 11: W IRING IAGRAMS 11.2 Ladder Diagram FIGURE 36: Ladder Diagram...
Page 50: Section 12: Replacement Parts Use Only Genuine Roberts Gordon
CGTH I NSTALLATION PERATION AND ERVICE ANUAL SECTION 12: REPLACEMENT PARTS Use only genuine ROBERTS GORDON ® replacement parts. Use of parts not specified by Roberts- Gordon voids warranty. Failure to follow these instructions can result in property damage. This section contains the part numbers and pictorials for components of the CGTH-Series heater. Callout letters on the illustrations refer directly to the associated parts list.
Page 51 12.1.1 Replacement Parts List for Burner Item Part Number 08117000 90439300 90439101K 02553203 08018000 90710201 90434005 90436900K 90439806K 90439804K 90439802K 90034500 90034600 91201618 91911701 08115100 90427706 91306405 Description Burner Cup Assembly Flame Sensor Igniter, Primary Mica Window Assembly Adapter, Orifice Holder Motor/Blower Ignition Module Transformer...
Page 52: Lllustrated Parts List For Tube And Reflector
CGTH I NSTALLATION PERATION AND ERVICE ANUAL 12.2 lllustrated Parts List for Tube and Reflector FIGURE 38: Tube and Reflector 12.3 Replacement Parts List for Tube & Reflector Item Part Number Description 08020001 Heat Exchanger Assembly (8') (2438 mm) 08021001 Heat Exchanger Assembly (11'6") (3505 mm) 94273914 Bolt Rolok...
Page 53: Section 13: The Roberts Gordon
SECTION 13: THE ROBERTS GORDON ROBERTS-GORDON WILL PAY FOR: Within 42 months from date of shipment from Roberts- Gordon, replacement parts will be provided free of charge for any part of the product which fails due to a manufacturing or material defect. Roberts-Gordon will require the part in question to be returned to the factory.

This manual is also suitable for:

Caribe cgth-40 Caribe cgth-50

Roberts Gorden Caribe CGTH-30 Installation & Operation Manual

Section 1: before You Begin

Section 2: Introduction

Section 3: Planning

Section 4: Installation

Section 5: Venting Installation

Section 6: Electrical Service Installation

Section 7: Gas Service Installation

Section 8: Operation

Section 9: Troubleshooting

Section 10: Maintenance

Section 11: Wiring Diagrams

SECTION 12: REPLACEMENT PARTS Use Only Genuine ROBERTS GORDON

Section 13: the Roberts Gordon

Warranty