Roberts Gorden CGTH-40, CGTH-30, CGTH-50 User Manual

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. Leave the building.

6. Immediately call your local gas
supplier after leaving the building.
Follow the gas suppliers
instructions.

7. If you cannot reach your gas
supplier, call the Fire Department.

®

Caribe

Gas-Fired, Low-Intensity

Infrared Heaters for

WARNING

Fire Hazard

Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.

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.

Residential Garages and

Light Industrial/Commercial

Applications

CGTH-30
CGTH-40
CGTH-50

Use and

Care Manual

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.

Quality in Any Language™

© Copyright 2007 Roberts-Gordon

Installer

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.

Owner

Keep this manual in a safe place in order to provide

your serviceman with necessary information.

Roberts-Gordon, LLC

1250 William Street
P. O . B ox 44
Buffalo, New York 14240-0044
Telephone: [phone]
Fax: [phone]
Toll Free: 800.828.7450

www.rg-inc.com

P/N 18 0101 NA Rev. B 1 / 0 7

TABLE OF CONTENTS

SECTION 1: Before You Begin............................................... 1

1.1 Read This Manual ........................................................1

1.2 Questions, Comments or Suggestions.........................1

SECTION 2: Heater Safety...................................................... 2

SECTION 3: Introduction........................................................ 3

3.1 About Roberts-Gordon ................................................ 3

3.2 About the Heater.......................................................... 3

3.3 Unpacking the Heater.................................................. 3

3.4 Components Identification ........................................... 4

3.5 Where Can the Heater Be Installed? ........................... 5

3.6 Where Can't the Heater Be Installed?..........................5

3.7 Installer's Responsibility ..............................................5

SECTION 4: Before Using The Heater...................................6

4.1 System Requirements.................................................. 6

4.2 Gas Service Requirements:.........................................6

4.3 Electrical Service Requirements.................................. 6

4.4 Venting Requirements..................................................7

4.5 Non-Residential Installations .......................................7

4.6 Heater Location ........................................................... 8

SECTION 5: Using The Heater ...............................................9

5.1 Required Safe Distances from Combustibles............... 9

5.2 Protective Grille.......................................................... 13

5.3 Rear Movable Hanger Limits ..................................... 14

5.4 Operating Instructions................................................ 15

5.5 To Turn Off Gas To Heater .........................................15

5.6 Sequence of Operation.............................................. 16

5.7 Venting....................................................................... 16

SECTION 6: Caring For The Heater ..................................... 18

6.1 Annual Inspection ...................................................... 18

6.2 Monthly Inspection..................................................... 18

6.3 Maintenance Checklist............................................... 18

6.4 Basic Heater Care......................................................19

6.5 Replacement Parts .................................................... 19

SECTION 7: The ROBERTS GORDON

Warranty............................................................. 21

®

CARIBE® LIMITED

© 2007

Roberts-Gordon, LLC

All rights reserved. No part of this work covered by the copyrights herein may be reproduced
or copied in any form or by any means - graphic, electronic, or mechanical, including
photocopying, recording, taping or information storage and retrieval systems - without the
written permission of Roberts-Gordon, LLC.

Printed in the U.S.A.

TABLE OF FIGURES

Figure 1: Components Identification ......................................... 4

Figure 2: Balanced Flue............................................................ 7

Figure 3: Thermostat Tag ......................................................... 9

Figure 4: Horizontal Installation............................................... 10

Figure 5: 45° Tilted Installation................................................10

Figure 6: Vent Terminal Clearances........................................ 11

Figure 7: Reflector and Grille .................................................. 13

Figure 8: Typical Installation.................................................... 14

Figure 9: Horizontal Venting Through The Wall ...................... 16

Figure 10: Horizontal Venting With An Elbow.........................17

Figure 11: Roof Venting.......................................................... 17

SECTION 1: BEFORE YOU BEGIN

SECTION 1: BEFORE YOU BEGIN

®

Thank you for purchasing a ROBERTS GORDON
heating product. We are pleased you have chosen
the CGTH Series overhead tube heater. In addition to
the quality you receive from our company, you also
receive over 30 years of infrared heating experience.

For years of trouble-free operation from your heater,
carefully read this Use & Care Manual. This Manual
contains valuable information to help you use the

Keep this manual in a safe place in case you have
any questions or require service in the future. Also,
since proof of purchase is required to obtain warranty
coverage, keep the original sales receipt in a safe
place. Remember to record the model and serial
numbers of your heater below. Model and serial num­bers are found on the rating tag affixed to the heater.
See Page 10 for rating tag location.

heater safely and properly.

To obtain warranty service, please complete and mail
the Owner Warranty Registration Card found on the
last page of this manual. In addition to activating your
warranty, registering your heater enables us to con­tact you with safety and product updates.

Model Number: Serial Number: Fuel: Installation Date:

Installed By:
Company

Name Name

Address Address

Phine Phone

Fax Fax

E-mail E-mail

1.1 Read This Manual

Read this manual carefully before installing or servic­ing this equipment. Improper installation, servicing or

Purchased From (if different from installer):
Company

1.2 Questions, Comments or Suggestions

Please direct any questions, comments or sugges-

tions to:
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 appli­cation. The required safe distances from combusti­bles are also found on Pages 9 and 10 of this
manual. Installer must be a contractor qualified in the
installation and service of gas-fired heating equip­ment. After the installation is complete, check product
operation as provided in these instructions.

Roberts-Gordon, LLC

1250 William Street
P. O . B ox 4 4
Buffalo, New York 14240-0044
Telephone: [phone]
Fax: [phone]
Toll Free: 800.828.7450

1

CGTH USE AND CARE MANUAL

SECTION 2: HEATER SAFETY

Your Safety is Important to Us!
This symbol is used throughout
the manual to notify you of possi­ble fire, electrical or burn hazards.
Please pay special attention when
reading and following the warn­ings in these sections.

Installation, Service and Annual Inspection of heater
must be done by a contractor qualified in the installa­tion and service of gas-fired heating equipment.

WARNING

Read this manual carefully before using the heater.

Plug the heater into a grounded three-prong ceiling
outlet.

Do not install or service any part of the heater.
Installation must be done by a contractor qualified in
the installation and service of gas-fired heating
equipment or your gas supplier.

Installer must exhaust heater outside.

Keep all persons, especially children, away from the
heater.

Keep the heater out of the weather. The heater is for
indoor areas such as residential garages, workshops,
hobby greenhouses, small warehouses, service
centers or lobbies. Do not use the heater in living or
sleeping areas such as a bedroom or basement.

CAUTION

Do not use heater in an area containing corrosive
chemicals.

Avoid the use of corrosive chemicals to ensure a
longer life of the burner, tubing and other parts.

Failure to follow these instructions can result in
property damage.

2

SECTION 3: INTRODUCTION

3.1 About Roberts-Gordon

Roberts-Gordon pioneered low-intensity infrared
heating systems in 1962 with the introduction of its

®

revolutionary custom-engineered CORAYVAC

sys­tem. After more than 40 years of infrared expertise in
commercial and industrial applications, Roberts-Gor­don now offers the CGTH-Series heater for use in
residential garages and light industrial/commercial
applications.

3.2 About the Heater

The CGTH-Series is a factory-assembled, gas-fired,
low-intensity heating system that incorporates a bal­anced flue. The system has been designed for easy
installation and will provide years of economical
operation and trouble-free service. Not only is infra­red heat efficient, it also provides the most comfort­able conditions in open areas, such as garages.

SECTION 3: INTRODUCTION

lifted from the carton at the same time. The burner
should be lifted by gripping the bottom. The reflector
of the heater should be lifted using the hanger.

3.3.2 Safety

WARNING

Cut Hazard

Wear protective gloves when handling aluminum
reflectors.

Edges are sharp.

Failure to follow these instructions can result in injury.

Gas-Fired means it uses clean-burning natural or LP
gas.

Low-Intensity means that the radiant surface of the
tube does not glow red. Instead, it operates at a
lower temperature (less than 1000°F) and radiates
energy at a lower intensity per square foot of radiat­ing surface. The lower temperature and intensity lev­els are within a range that is most effective in
establishing and maintaining personal comfort levels.
An aluminum reflector directs the radiant energy
downward to the occupied area.

Balanced Flue means that the burner draws com­bustion air from outdoors and exhausts the products
of combustion, also to the outdoors, through a shared
opening. This is accomplished through two concen­tric tubes.

Radiant refers to the energy radiated by the CGTH­Series heater. Because the energy is in the form of
infrared rays, it does not directly heat the air. Instead,
the rays heat objects such as the floor, cars, machines
and people. The warm objects, in turn, heat the air.

Thin sheet metal parts, such as the reflector portion
of the heater and the various venting components,
have sharp edges. To prevent injury, the use of work
gloves is recommended. The use of gloves will also
prevent the transfer of body oils from the hands to the
surface of the reflector.

These combined features are the key to the excep­tional comfort and fuel efficiency provided by the
CGTH-Series heater.

3.3 Unpacking the Heater

3.3.1 Manpower Requirements

To prevent personal injury and damage to the heater,
two persons will be required to remove the heater
from the carton. Both ends of the heater should be

3