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Gas Heater
Roberts Gorden
CGTH-40, CGTH-30, CGTH-50 service manual
Models:
CGTH-40
CGTH-50
CGTH-30
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Specifications
Install
Parts list
Connection Diagram
Thermostat Placement
Warranty
Dimension
Horizontal Venting Configurations
Heater Assembly
Testing
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Contents
Infrared Heaters for
Installation, Operation
Gas-Fired, Low-Intensity
Residential Garages and
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TABLE OF CONTENTS
2005
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TABLE OF FIGURES
Page
Roberts-Gordon,LLC
SECTION 1 BEFORE YOU BEGIN 1.1 Read This Manual
1.2 Questions, Comments or Suggestions
2.3.2 Safety
2.2 About the Heater
Heater Assembly
Manual Gas
Heater Assembly
available as an accessory under kit part numbers
Shut-offValve
2.6 Available Accessories for Galvanized Vent
Wall Venting Kit P/N 08032200 includes
2.7Available Accessories for Cox Geelen Vent
Roof Venting Kit P/N 08032100 includes
Nipple 3/8”
VENTING SPECIFICATIONS Vent/Flue
Inputs and Dimensions
HEATER SPECIFICATIONS Electrical
Gas Inlet Connection
2.12 Installers Responsibility
2.10 Where Can the Heater Be Installed?
2.11Where Cant the Heater Be Installed?
Residential applications, such as garages
3.3 Electrical Service Requirements
3.2Gas Service Requirements 3.2.1 Gas Type
3.2.3 Meter and Service
SECTION 3 PLANNING 3.1 General
3.4.3 Balanced Flue Construction
3.4Venting Requirements 3.4.1 System Requirements
3.4.2 Venting Codes
FIGURE 3 Balanced Flue
3.5.3 Hazardous Locations
4.2 Installation Tools
SECTION 4 INSTALLATION
4.1 Safety Equipment
4.3 Installation Materials
4.5 General Venting Guidelines
4.6 Required Safe Distances from Combustibles
FIGURE 5 45 Tilted Installations
All dimensions are from the reflector
FIGURE 4 Horizontal Installations
24 Min. 609 mm
4.7 Hang the Heater
4.9 Heater Assembly
FIGURE 8 Heater Assembly
FIGURE 7 Suspension Details
X Dimension
4.10 Typical Installation
FIGURE 9 Typical Installation
4.12 Horizontal Installation
FIGURE 11 45 Tilted Installation
FIGURE 10 Horizontal Installation
4.13 45 Tilted Installation
FIGURE 13 Grille End Cap Installation
4.14 Grille Installation for Select Models Only
FIGURE 12 Silicone Cap Installation
FIGURE 14 Reflector and Grille
5.1 General Venting Requirements
SECTION 5 VENTING INSTALLATION
5.2 Install Galvanized Collar
United States Requirements
5.3Galvanized Horizontal Venting
FIGURE 17 Bird Screen Installation
FIGURE 16 Horizontal Installation Side View
5.3.1 Bird Screen Installation
5.3.2 Galvanized Horizontal Venting with an Elbow
FIGURE 20 Elbow Assembly Cross Section View
FIGURE 18 Horizontal Installation Top View
FIGURE 19 Elbow Assembly End View
FIGURE 23 Vent Collar and 5 Vent Attachment
FIGURE 21 Elbow Assembly
FIGURE 22 Elbow Assembly for Vent Collar
5.3.3 Vent Assembly Overview
FIGURE 24 Assembly Overview
5.4Cox Geelen Horizontal Venting
Part Number
FIGURE 27 Horizontal Venting Configurations
FIGURE 26 Flue Collar and Adapter
Description
Part Number
FIGURE 28 Vertical Venting Configurations
5.5Cox Geelen Vertical Venting
Description
FIGURE 29 Vent Clamp
FIGURE 30 Thermostat Installation
SECTION 6 ELECTRICAL SERVICE INSTALLATION
Heater Rating 120V, 60 Hz, Single Phase, 1A
6.4 Thermostat Placement
FIGURE 31 Thermostat Installation Rear View
FIGURE 32 Gas Supply Lines
8.2 To Turn Off Gas To Heater
8.4 Testing
SECTION 8 OPERATION 8.1 Operating Instructions
8.3 Sequence of Operation
SECTION 8 OPERATION
FIGURE 33 Pressure Testing
Cover Cap and Regulator Screw Outlet Pressure Tap
Try this
BLOWER DOES NOT COME ON
Possible Cause
IGNITER DOES NOT SPARK
Natural Gas
BURNER DOES NOT LIGHT
LP Gas
Possible Cause
FIGURE 34 Manometer Reading
Try this
BURNER CYCLES ON AND OFF TOO QUICKLY
Possible Cause
Possible Cause
Try this
BURNER MAKES VIBRATING NOISES WHILE RUNNING
Possible Cause
Motor Vibration
For best performance, the following maintenance procedures must be performed by a contractor quali- fied in the installation and service of gas-firedheating equipment before each heating season
FIGURE 35 Connection Diagram
11.2Ladder Diagram FIGURE 36 Ladder Diagram
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Description
12.1.1 Replacement Parts List for Burner
Part Number
CGTH-40
12.3 Replacement Parts List for Tube & Reflector
CGTH-30
CGTH-50
ROBERTS-GORDONWILL NOT PAY FOR
WARRANTY IS VOID IF
ROBERTS-GORDONWILL PAY FOR
LIMITATIONS ON AUTHORITY OF REPRESENTATIVES
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Type of Installation check one
OWNER WARRANTY REGISTRATION CARD
About the Installer
About the Owner
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