Roberts Gordon CARIBE Installation guide

Brand: Roberts Gordon

Model: CARIBE

Type: Installation guide

WARNING

Installation must be done by a contractor qualified

in the installation and service of gas-fired heating

equipment or your gas supplier.

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.

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.

WARNING

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.

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.

Roberts-Gordon LLC

1250 William Street

P. O . B o x 4 4

Buffalo, New York 14240-0044

Telephone: +1.716.852.4400

Fax: +1.716.852.0854

Toll Free: 800.828.7450

www.rg-inc.com

www.radiantheaters.com

CGTH-30

CGTH-40

CGTH-50

P/N 180100NA Rev. L 02/12

Caribe

Gas-Fired, Low-Intensity Infrared

Heaters for Light Industrial/

Commercial Applications

Installation, Operation &

Service Manual

Roberts-Gordon LLC

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.

TABLE OF CONTENTS

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

1.1 Heater Safety ............................................................... 1

1. 2 Q uestions, Comments or Suggestions......................... 1

SECTION 2: Introduction........................................................ 2

2.1 About Roberts-Gordon LLC.........................................2

2.2 About the Heater..........................................................2

2.3 Unpacking the Heater .................................................. 2

2.4 Safety Labels and Their Placement............................. 2

2.5 California Proposition 65.............................................. 2

SECTION 3: Component Identification .................................5

3.1 Carton Contents of Heaters with Galvanized Venting .. 5

3.2 Carton Contents of Heaters with Cox Geelen Venting . 6

3.3 Available Accessories for Galvanized Vent .................. 7

3.4 Available Accessories for Cox Geelen Vent ................. 8

3.5 Component Description ............................................... 9

SECTION 4: Technical Specifications ................................. 10

4.1 Material Specifications............................................... 10

4.2 Heater Specifications................................................. 10

4.3 Suspension Specifications......................................... 10

4.4 Controls Specifications .............................................. 10

SECTION 5: Installation Considerations............................. 11

5.1 Where Can the Heater Be Installed? ......................... 11

5.2 Where Can't the Heater Be Installed?........................ 11

5.3 Installer's Responsibility ............................................ 11

5.4 Thermostat Tag.......................................................... 11

SECTION 6: Heater Installation Requirements................... 12

6.1 National Standards and Applicable Codes ................ 12

6.2 Gas Service Requirements........................................ 12

6.3 Electrical Service Requirements................................ 12

6.4 Venting Requirements................................................ 13

6.5 Non-Residential Installations ..................................... 13

SECTION 7: Required Safe Distances From

Combustibles ................................................... 15

SECTION 8: Installation........................................................ 17

8.1 Safety Equipment ...................................................... 17

8.2 Installation Tools ........................................................ 17

8.3 Installation Materials .................................................. 17

8.4 Choose Location for Heater....................................... 18

8.5 General Venting Guidelines ....................................... 18

8.6 Hang the Heater ........................................................21

8.7 Remove Shipping Screw from Control Housing

Door...........................................................................21

8.8 Heater Assembly .......................................................22

8.9 Typical Installation......................................................23

8.10 Heater Orientation.................................................... 23

8.11 Horizontal Installation...............................................23

8.12 45° Tilted Installation................................................24

8.13 Grille Installation (for Select Models Only)...............25

SECTION 9: Venting Installation.......................................... 27

9.1 General Venting Requirements.................................. 27

9.2 Install Galvanized Collar ............................................ 28

9.3 Galvanized Horizontal Venting................................... 28

9.4 Cox Geelen Horizontal Venting.................................. 32

9.5 Cox Geelen Vertical Venting ...................................... 34

SECTION 10: Electrical Service Installation ....................... 36

10.1 System Requirements.............................................. 36

10.2 Grounding ................................................................ 36

10.3 Important Notes ....................................................... 36

10.4 Thermostat Placement............................................. 36

10.5 Thermostat Installation ............................................ 36

10.6 Connection Diagram ................................................ 38

SECTION 11: Gas Service Installation ................................ 40

11.1 Install Gas Supply Lines ........................................... 40

SECTION 12: Operation........................................................ 41

12.1 Operating Instructions.............................................. 41

12.2 To Turn Off Gas To Heater ....................................... 41

12.3 Sequence of Operation............................................ 41

12.4 Testing ..................................................................... 42

SECTION 13: Troubleshooting............................................. 43

13.1 General .................................................................... 44

SECTION 14: Maintenance................................................... 48

14.1 Pre-Season Maintenance and Annual Inspection .... 48

SECTION 15: Replacement Parts ........................................ 50

15.1 Replacement Parts List for Burner........................... 52

15.2 lllustrated Parts List for Tube and Reflector ............. 53

15.3 Replacement Parts List for Tube & Reflector ........... 53

SECTION 16: The ROBERTS GORDON

CARIBE

Warranty ......................................................... 55

Printed in the U.S.A.

TABLE OF FIGURES

Figure 1: Bottom and Side Panel Label Placement................... 3

Figure 2: Control Side and Back Panel Label Placement ......... 4

Figure 3: Assembly Overview ...................................................9

Figure 4: Specifications........................................................... 10

Figure 5: Balanced Flue.......................................................... 13

Figure 6: Horizontal Installations............................................. 16

Figure 7: 45° Tilted Installations.............................................. 16

Figure 8: Vent Terminal Locations........................................... 19

Figure 9: Shipping Screw........................................................ 21

Figure 10: Suspension Details................................................21

Figure 11: Heater Assembly ...................................................22

Figure 12: Typical Installation..................................................23

Figure 13: Horizontal Installation.............................................24

Figure 14: 45° Tilted Installation..............................................24

Figure 15: Silicone Cap Installation ........................................25

Figure 16: Grille End Cap Installation...................................... 25

Figure 17: Reflector and Grille ................................................ 26

Figure 18: Rear View .............................................................. 28

Figure 19: Horizontal Installation Side View ............................29

Figure 20: Bird Screen Installation.......................................... 29

Figure 21: Horizontal Installation Top View ............................30

Figure 22: Elbow Assembly End View ....................................31

Figu

re 23: Elbow Assembly Cross Section View .................... 31

Figure 24: Elbow Assembly .................................................... 31

Figure 25: Elbow Assembly for Vent Collar ............................ 31

Figure 26: Vent Collar and 5" Vent Attachment ......................31

Figure 27: Horizontal Installation Side View Cox Geelen

Venting...................................................................33

Figure 28: Flue Collar and Adapter......................................... 33

Figure 29: Horizontal Venting Configurations ......................... 33

Figure 30: Vertical Venting Configurations ............................. 34

Figure 31: Vent Clamp............................................................ 35

Figure 32: Thermostat Installation .......................................... 37

Figure 33: Thermostat Installation Rear View.........................37

Figure 34: Internal Wiring Diagram ......................................... 39

Figure 35: Ladder Diagram ....................................................39

Figure 36: Gas Supply Lines...................................................40

Figure 37: Pressure Testing.................................................... 42

Figure 38: Manometer Reading ..............................................46

Figure 39: Illustrated Parts List ...............................................51

Figure 40: Tube and Reflector................................................. 53

LIST OF TABLES

Table 1: Components .............................................................34

Table 2: Components .............................................................34

SECTION 1: BEFORE YOU BEGIN

1 of 55

SECTION 1: BEFORE YOU BEGIN

1.1 Heater Safety

Yo ur Safety is Important to Us!

This symbol is used throughout

the manual to notify you of possi-

ble 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.

Read this manual carefully before installation, opera-

tion or service of this equipment. Improper installa-

tion, service or maintenance can result in death,

injury or property damage.

Check the minimum required safe distances from

combustibles given on the outside of each burner to

make sure that the product is suitable for your appli-

cation. The minimum required safe distances from

combustibles are also found on Pages 15 and 16 of

this man

ual. After the installation is complete, check

product operation as provided in these instructions.

This heater must be applied and operated under the

general concepts of reasonable use and installed

using best building practices.

This appliance is not intended for use by persons

(including children) with reduced physical, sensory or

mental capabilities, or lack of experience and knowl-

edge, unless they have been given supervision or

instruction concerning use of the appliance by a per-

son responsible for their safety.

Children should be supervised to ensure that they do

no play with the appliance.

For additional copies of the Installation, Operation

and Service Manual, please contact Roberts-Gordon

LLC.

1.2 Questions, Comments or Suggestions

Please direct any questions, comments or sugges-

tions to:

Roberts-Gordon LLC

1250 William Street

P. O . B o x 4 4

Buffalo, New York 14240-0044

Telephone: +1.716.852.4400

Fax: +1.716.852.0854

Toll Free: 800.828.7450

www.rg-inc.com

www.radiantheaters.com

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

2 of 55

SECTION 2: INTRODUCTION

2.1 About Roberts-Gordon LLC

Roberts-Gordon LLC pioneered low-intensity infrared

heating systems with the introduction of its revolu-

tionary, custom-engineered CORAYVAC

system.

With years of infrared expertise in commercial and

industrial applications, Roberts-Gordon LLC LLC

offers the CGTH-Series heater for use in light indus-

trial/commercial applications.

2.2 About the Heater

The CGTH-Series is a factory-assembled, gas-fired,

low-intensity heating system that incorporates a bal-

anced flue. The system has been designed for easy

installation and can provide years of economical

operation and trouble-free service. Not only is infra-

red heat efficient, it also provides the most comfort-

able conditions in open areas, such as garages.

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 (538° C) and

radiates energy at a lower intensity per square foot of

radiating surface. The lower temperature and inten-

sity levels are within a range that is effective in estab-

lishing and maintaining personal comfort levels. An

aluminum reflector directs the radiant energy down-

ward to the occupied area.

Balanced Flue means that the burner draws com-

bustion air from outdoors and exhau

sts the products

of combustion, also to the outdoors, through a shared

opening. This is accomplished through two concen-

tric tubes.

Radiant refers to the energy radiated by the CGTH-

Series 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.

These combined features are key to the comfort and

fuel efficiency provided by the CGTH-Series heater.

2.3 Unpacking the Heater

2.3.1 Manpower Requirements

To p revent 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

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.

2.3.2 Safety

Protective gear is to be worn during installation, oper-

ation and service. Thin sheet metal parts, such as

the aluminum reflector portion of the heater and the

various venting components, have sharp edges. To

ent injury, the use of work gloves is recom-

mended. The use of gloves will also prevent the

transfer of body oils from the hands to the surface of

the reflector.

For additional copies of the Installation, Operation

and Service Manual, please contact Roberts-Gordon

LLC.

2.4 Safety Labels and Their Placement

Product safety signs or labels should be replaced by

the product user when they are no longer legible.

Please contact Roberts-Gordon LLC or your ROB-

ERTS GORDON

independent distributor to obtain

replacement signs or labels. See Page 3, Figure 1

through Page 4, Figure 2.

2.5 California Proposition 65

In accordance with California Proposition 65 require-

ments, a warning label must be placed in a highly

visible location on the outside of the equipment (i.e.,

near equipment’s serial plate). See label placement

drawing on Page 4, Figure 2 for label location. Avoid

placing label on areas with extreme heat, cold, corro-

sive chemicals or other elements. To order additional

labels, please contact Roberts-Gordon LLC or your

ROBERTS GORDON

independent distributor.

WARNING

Cut/Pinch Hazard

Wear protective gear during installation,

operation and service.

Edges are sharp.

Failure to follow these instructions can result

in injury.

SECTION 2: INTRODUCTION

3 of 55

FIGURE 1: Bottom and Side Panel Label Placement

Side Panel

Operating Instruction Label

Logo Label

Bottom Panel

Clearances to

Combustibles Label

Description Part Number

Logo Label 91037702

Operating Instruction Label 91037100

Clearances to Combustibles Label 91037800

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

4 of 55

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 91070015

SECTION 3: COMPONENT I DENTIFICATION

5 of 55

SECTION 3: COMPONENT IDENTIFICATION

3.1 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 7.

Side View

Grille (P/N 08050001)

Grille End Cap

(P/N 08050002)

(1) Thermostat

P/N 90409702

* 5' (1.5 m) Balanced Flue Vent

package (P/N 08039000)

includes:

(1) 3" (8 cm) Flue Pipe

66"(168 cm) Long

P/N 08035000

(1) 5" (13 cm) Vent Pipe

60" (152 cm) Long

P/N 90502800

Heater Assembly:

CGTH-30; CGTH-40; CGTH-50

A.) (1) Hanger P/N 08080000

B.) (1) Reflector End Cap P/N 02750800

C.) (4) U-Clips P/N 91107720

(1) Flue Collar

P/N 08031500

(1) Vent Termination

P/N 08031001

(1) Bird Screen

P/N 08036000

(1) 3/8" (10 mm) Manual Gas

Shut-off Valve P/N 90100200

Protective Grille Kits - Included with select models. Also

available as an accessory under kit part numbers.

CGTH-30 Kit (P/N 08051000) includes:

(1) Grille End Cap P/N 08050002

(2) Grille without End Cap P/N 08050001

(2) Silicone Cap P/N 91915951-6P

CGTH-40 and CGTH-50 Kit (P/N 08051001) includes:

(3) Grille without End Cap P/N 08050001

(1) Grille End Cap P/N 08050002

(3) Silicone Cap P/N 91915951-6P

(1) Thermostat Tag P/N 91037903

(3) Vent Collar Mounting Screws

to attach vent collar to heater

P/N 94118106

(1) Installation Manual P/N 180100NA

(1) Use and Care Manual

P/N180101NA

(1) Owner Warranty Registration Card:

P/N CGTHWCNA

(2) Female Terminals

to connect

thermostat wire

P/N 91317300

(4) Snap Hooks

P/N 91903300

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

6 of 55

3.2 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.

Fire Hazard

Keep all flammable objects,

liquids and vapors the minimum

required safe distances away

from heater.

Keep children, clothing and

furniture away from heater.

Some objects will catch fire or

explode when placed close to

heater.

Failure to follow these

instructions will result in death,

injury or property damage.

WARNING

Printed in U.S.A./Imprimé aux Etats-Unis

This thermostat controls your overhead tube heater. Keep burner, control compartment and reflector clean. Read

your CGTH-Series Use and Care Manual (P/N 180101NA or G H80101NA) and fol low all Safety Requirements which

include checking your heater monthly. Installation, Service and Annual Inspection must be done by a contractor

qualified in the installation and service of gas-fired heating equipment. Please call +1 716-852-4400 (USA) if you

need a manual or have questions.

Ce thermostat commande votre radiateur. Gardez le module de contrôle et le reflécteur propres. Lisez le manuel

d’utilisation et d’entretien CGTH-Series (P/N 180101NA ou GH80101NA) et respectez tous les conseils de sécurité,

notamment le contrôle mensuel du radiateur. L’installation, l'entretien et l’inspection annuelle doivent être

effectués par un agent agréé. Veuillez nous contactez au +1 716-852-4400 (USA) pour toutes questions ou

demandes de manuel.

MOUNT

THERMOSTAT

HERE

MONTER LE

THERMOSTAT ICI

ATTENTION

Risque d'incendie

Tenir tous les objets, iquides et

vapeurs inflammables à la

distance minimale de sécurité

requise du radiateur.

Surveiffer les enfants. Gardes les

vêtements, les meubles loin de

l'appareil.

Certains objets placés près du

radiateur peuvent s'enflammer ou

exploser.

Le non-respect de ces consignes

peut causer dommage au matériel.

Required Safe Distances from Combustibles

Distances de Dégagement par Rapport aux Combustibles

Horizontal Mount

Montage Horizontal

45° Mount

Montage à 45°

24" Min. (61 cm)

Approx.

24" Min. (61 cm)

Rating Tag

Éttiquette

CGTH-Series

NOTES: 1. Toutes les dimensions sont mesurées à partir du réflecteur.

2. Les chiffres noirs sont en pouces. Les chiffres oranges sont

en centimètres.

3. Vous devrez connaître le numéro de votre modèle. Il se

trouve sur l’étiquette de classement. (Voir le dessin du

montage horizontal pour l’emplacement de l’étiquette de

classement).

Model A B C D E F

CGTH-30 4 16 36 28 34 6

CGTH-40 4 18 48 30 34 6

CGTH-50 4 20 48 32 36 6

Modèle A B C D E F

CGTH-30 11 41 92 72 87 16

CGTH-40 11 46 122 77 87 16

CGTH-50 11 51 122 82 92 16

www.rg-inc.com

Classement

P/N 91037903 Rev G

NOTES: 1. All dimensions are from the reflector.

2. Black numerals are in inches. Orange numerals are in

centimeters.

3. Know your model number. Model number is found on

the rating tag. (See horizontal mount drawing for location

of rating tag).

(1) 3/8" (1 cm)

Manual Gas

Shut-off Valve

P/N 90100200

Side View

Grille (P/N 08050001)

Grille End Cap

(P/N 08050002)

(1) Thermostat

Heater Assembly:

CGTH-30; CGTH-40; CGTH-50

A.) (1) Hanger P/N 08080000

B.) (1) Reflector End Cap P/N 02750800

C.) (4) U-Clips P/N 91107720

Protective Grille Kits - Included with select models. Also

available as an accessory under kit part numbers.

CGTH-30 Kit (P/N 08051000) includes:

(1) Grille End Cap P/N 08050002

(2) Grille without End Cap P/N 08050001

(2) Silicone Cap P/N 91915951-6P

CGTH-40 and CGTH-50 Kit (P/N 08051001) includes:

(3) Grille without End Cap P/N 08050001

(1) Grille End Cap P/N 08050002

(3) Silicone Cap P/N 91915951-6P

(4) Snap Hooks

P/N 91903300

(1) Thermostat Tag P/N 91037903

(3) Vent Collar Mounting Screws

to attach vent collar to heater

P/N 94118106

(1) Installation Manual P/N 180100NA

(1) Use and Care Manual

P/N180101NA

(1) Owner Warranty Registration Card:

P/N CGTHWCNA

(2) Female Terminals

to connect

thermostat wire

P/N 91317300

SECTION 3: COMPONENT I DENTIFICATION

7 of 55

3.3 Available Accessories for Galvanized Vent

5" (13 cm)

Diameter Elbow

3" (8 cm)

Diameter Elbow

1" (2.5 cm)

Diameter Spring

6" (15 cm)

2.75" (6 cm)

Vent Terminal Extension

P/N 08037000

90° Elbow Kit (P/N 08038000) includes:

(1) 5" (13 cm) Diameter Elbow

P/N 90503000

(1) 3" (8 cm) Diameter Elbow

P/N 90503100

(1) Coil Spring Spacer P/N 90503200

5' (1.5 m) Balanced Flue Vent

(P/N 08039000) includes:

(1) 5" (13 cm) Vent Pipe - 60" (152 cm)

P/N 90502800

(1) 3" (8 cm) Flue Pipe - 66" (168 cm)

P/N 08035000

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

8 of 55

3.4 Available Accessories for Cox Geelen Vent

(1) Roof Terminal

50.5" (128 cm)

P/N 90506008

(1) Burner/Vent Adapter

P/N 90506012

(1) Storm Collar

P/N 90506015

(1) Elbow 90°

P/N 90506001

Roof Venting Kit (P/N 08032100) includes:

(1) Burner/Vent Adapter P/N 90506012

(1) Wall Terminal 25" (4 cm) with wall plate

(P/N 90506011) includes:

(4) Screws P/N 94118106

(2) Wall Plates P/N 90506013

Wall Venting Kit (P/N 08032200) includes:

Concentric Flue - 10" (25 cm) P/N 90506003

Concentric Flue - 20" (50 cm) P/N 90506004

Concentric Flue - 39" (100 cm) P/N 90506005

Concentric Flue - 79" (200 cm) P/N 90506006

Elbow 45° - 39" (100 cm) P/N 90506002

SECTION 3: COMPONENT I DENTIFICATION

9 of 55

3.5 Component Description

FIGURE 3: Assembly Overview

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. Holes are provided

in the upper corners of the bulkhead to accommo-

date suspension hardware required for installation of

the heater.

Reflector - The reflector is made from formed alumi-

num and reflects the radiant energy downward to the

space to be heated.

Heat Exchanger - A U-shaped tube through which

the heated products of combustion pass.

Rear Movable Hanger - Provides support for the tube

and reflector at the end that is furthest from the burner.

The support may be moved (w

ithin limits) to accom-

modate hanging of the unit.

Service Door - To be removed only by a contractor

qualified in the installation and service of gas-fired

heating equipment or your gas supplier. Removal of

this service door provides access to the electrical

and gas distribution components.

Gas Line - Must only be installed and serviced by a

licensed contractor or gas fitter.

Wall Termination Plate - Placed on the outside wall

over the venting.

Venting - Installer must properly exhaust the heater

outside. The 5" (13 cm) outer duct carries fresh air to

the burner. The 3" ( 8 cm) inner duct carries the prod-

ucts of combustion to the outside.

Thermostat - 24 Volt thermostat mounted with

Safety Tag.

Protective Grille - Included with select models. See

Page 25, Section 8.13 for details.

Vent Collar - Accommodates a 5" (13 cm) diameter

combustion air inlet duct that delivers fresh air to the

burner. The fresh air enters the b

urner through the

twelve equally spaced holes shown above. The 3"

(8 cm) diameter hole in the center of the flue collar

accommodates the venting duct that carries the prod-

ucts of combustion to be vented outdoors.

Nipple-3/8" NPT - Point at which the gas

supply is connected to the heater.

Thermostat Connection - Two terminals to which

the thermostat wires will be connected.

Power Cord - Includes a three-prong plug that must

be connected to a dedicated and properly grounded

three-prong ceiling outlet.

Fire Hazard

Keep all flammable objects,

liquids and vapors the minimum

required safe distances away

from heater.

Keep children, clothing and

furniture away from heater.

Some objects will catch fire or

explode when placed close to

heater.

Failure to follo w these

instructions will result in death,

injury or property damage.

WARNING

Printed in U.S.A./Imprimé aux Etats-Unis

This thermostat controls your overhead tube heater. Keep burner, control compartment and reflector clean. Read

your CGTH-Series Use and Care Manual (P/N 180101NA or GH80101NA) and follow all Safety Requirements which

include checking your heater monthly. Installation, Service and Annual Inspection must be done by a contractor

qualified in the installation and service of gas-fired heating equipment. Please call +1 716-852-4400 (USA) if you

need a manual or have questions.

Ce thermostat commande votre radiateur. Gardez le module de contrôle et le reflécteur propres. Lisez le manuel

d’utilisation et d’entretien CGTH-Series (P/N 180101NA ou G H80101NA) et respectez tous les conseils de sécurité,

notamment le contrôle mensuel du radiateur. L’installation, l'entretien et l’inspection annuelle doivent être

effectués par un agent agréé. Veuillez nous contactez au +1 716-852-4400 (USA) pour toutes questions ou

demandes de manuel.

MOUNT

THERMOSTAT

HERE

MONTER LE

THERMOSTAT ICI

ATTENTION

Risque d'incendie

Tenir tous les objets, iquides et

vapeurs inflammables à la

distance minimale de sécurité

requise du radiateur.

Surveiffer les enfants. Gardes les

vêtements, les meubles loin de

l'appareil.

Certains objets placés près du

radiateur peuvent s'enflammer ou

exploser.

Le non-respect de ces consignes

peut causer dommage au matériel.

Required Safe Distances from Combustibles

Distances de Dégagement par Rapport aux Combustibles

Horizontal Mount

Montage Horizontal

45° Mount

Montage à 45°

24" Min. (61 cm)

Approx

24" Min. (61 cm)

Rating Tag

Éttiquette

CGTH-Series

NOTES: 1. Toutes les dimensions sont mesurées à partir du réflecteur.

2. Les chiffres noirs sont en pouces. Les chiffres oranges sont

en centimètres.

3. Vous devrez connaître le numéro de votre modèle. Il se

trouve sur l’étiquette de classement. (Voir le dessin du

montage horizontal pour l’emplacement de l’étiquette de

classement).

Model A B C D E F

CGTH-30 4 16 36 28 34 6

CGTH-40 4 18 48 30 34 6

CGTH-50 4 20 48 32 36 6

Modèle A B C D E F

CGTH-30 11 41 92 72 87 16

CGTH-40 11 46 122 77 87 16

CGTH-50 11 51 122 82 92 16

www.rg-inc.com

Classement

P/N 91037903 Rev G

NOTES: 1. All dimensions are from the reflector.

2. Black numerals are in inches. Orange numerals are in

centimeters.

3. Know your model number. Model number is found on

the rating tag. (See horizontal mount drawing for location

of rating tag).

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

10 of 55

SECTION 4: TECHNICAL SPECIFICATIONS

4.1 Material Specifications

4.1.1 Reflectors

.024 Aluminum

(optional .024 Stainless Steel Type 304)

4.2 Heater Specifications

4.2.1 Ignition

Fully automatic, three try, direct spark electronic igni-

tion control, 100% shut-off.

4.3 Suspension Specifications

Hang heater with materials with a minimum working

load of 75 lbs (33 kg).

4.4 Controls Specifications

Low voltage, 24 VAC dual scale included with heater

(24 VAC optional). Connection built-in recepticle on

heater.

FIGURE 4: Specifications

HEATER SPECIFICATIONS

ELECTRICAL

Rating: 120 V, 60 Hz, 1 Ø, 1 A

Connection: 3 pin molded plug

GAS INLET CONNECTION

Connection: 3/8" Male NPT

GAS INLET PRESSURE

Natural Gas:

Minimum:Inlet 5.0" wc (12.4 mbar)

Maximum:Inlet 14.0" wc (34.8 mbar)

LP Gas (Propane):

Minimum:Inlet 11.0" wc (37.4 mbar)

Maximum:Inlet 14.0" wc (34.8 mbar)

MANIFOLD PRESSURE

Natural Gas: 3.5" wc (8.7 mbar)

LP Gas (Propane): 10.5" wc (26.1 mbar)

VENTING SPECIFICATIONS

VENT/FLUE

Length:10' (3 m) (Maximum)

2.5' (.7 m) (Minimum)

Flue Pipe:3.0" (8 cm) diameter

Vent Pipe:5.0" (13 cm) diameter

68 (173 cm)

For 40 & 50 Models Only

Hanger Plate Width

15"

(39 cm)

Heater Bottom ViewHeater Side View

15" (39 cm)

Burner End View

13"

(33 cm)

8.7"(22 cm)

13"

(33 cm)

14.5"

(37 cm)

Heat Input Rate

Model (Btu/h) x (1000) Weights Length “A”

CGTH-30 30 85 lbs. (38.5 Kg) 8' 0" (2.4 m)

CGTH-40 40 96 lbs. (43.5 Kg) 11' 6" (3.5 m)

CGTH-50 50 96 lbs. (43.5 Kg) 11' 6" (3.5 m)

SECTION 5: INSTALLATION CONSIDERATIONS

11 o f 55

SECTION 5: INSTALLATION CONSIDERATIONS

5.1 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

as:

- entranceways

- lobby areas

- lunch rooms

- aircraft hangars

(See Page 13, Section 6.5.1 for restrictions)

- public garages

(See Page 14, Section 6.5.2 for restrictions)

5.2 Where Can't the Heater Be Installed?

The CGTH-Series heater is not intended for installa-

tion in the following areas:

• Residential living or sleeping areas

• Basements

Due to high temperatures, ensure that the heater

area is kept clear of furniture, draperies, clothing

or other combustible materials. Children and

adults should be alerted to the hazard of high

surface temperatures and should stay away to

avoid burns and clothing ignition. Young children

should be carefully supervised when they are in

the same room as the heater.

5.3 Installer's Responsibility

The CGTH-Series heater, the gas and electrical sup-

plies, as well as the venting, must be installed in

accordance with applicable specifications and codes.

In the absence of local codes, the installation must

comply with the National Fuel Gas Code ANSI

7223.1/NFPA-54, Natural Gas and Propane Installa-

tion Code, CSA B149.1. Only firms (or individuals)

well q

ualified in this type of work shou ld install the

system. Consu lt local Building Inspectors, Fire Mar-

shals or your local ROBERTS GORDON

indepen-

dent distributor for guidance.

Use the information given in this manual together

with the cited codes and regulations to perform the

installation. The heater must be installed in accor-

dance with the minimum required safe distances from

combustibles and must be vented outside. If any

aspects of the installation are unclear, consult your

ROBERTS GORDON

independent distributor for

clarification. The installer must furnish all needed

materials that are not furnished as standard equip-

ment. It is also the installer's responsibility to see that

the materials and installation methods used result in

a job that is workmanlike in appearance and is in

compliance with the requirements of this manual. The

installer must give this manual and the Use and Care

Manual (P/N 180101NA) to the owner.

5.4 Thermostat Tag

A laminated thermostat tag is available for the heater

as a permanent reminder of the safety instructions

and the importance of the minimum required safe dis-

tances from combustibles. Please contact Roberts-

Gordon LLC or your ROBERTS GORDON

indepen-

dent distributor to obtain the thermostat tag. Affix the

tag by peeling off the backing of the adhesive strips

on the rear surface and position the tag on a wall

behind the thermostat.

A copy of the thermostat tag (P/N 91037903) is illus-

trated on Page 37, Figure 32.

Know your model number and installed configuration.

Model number and installed configuration are found

on the burner and in the Installation, Operation and

Service Manual. See Page 16, Figure 6 through

Page 16, Figure 7.

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.

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

12 of 55

SECTION 6: HEATER INSTALLATION REQUIREMENTS

6.1 National Standards and Applicable Codes

All appliances must be installed in accordance with

the latest revision of the applicable standards and

national codes. This refers also to the electric, gas

and venting installation. Note: Additional standards

for installations in Public Garages, Aircraft Hangars,

etc. may be applicable.

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.

• Specifies the national standards and applicable

codes that apply to non-residential installations.

6.2 Gas Service Requirements

6.2.1 Gas Type

The type of gas appearing on the nameplate must be

the type of gas used. Installation must comply with

local codes and recommendations of the local gas

company. United States: Refer to National Fuel Gas

Code NFPA 54/ANSI Z223.1 - latest revision.

Canada: Refer to Natural Gas and Propane Installa-

tion Code CSA B149.1 - latest revision.

6.2.2 Gas Supply Lines

The size of the gas supply lines must comply with

local codes and recommendations of the local gas

company. United States: Refer to National Fuel Gas

Code NFPA 54/ANSI Z223.1 - latest revision.

Canada: Refer to Natural Gas and Propane Installa-

tion Code CSA B149.1 - latest revision.

A 1/8" NPT plugged tap must be installed in the gas

line connection immediately upstream of the burner

that is farthest from the gas supply meter. The tap is

req

uired for checking system gas pressure.

6.2.3 Meter and Service

Meter and service must be large enough to handle all

the heaters being installed plus any other connected

load. The gas line which feeds the system must be

large enough to supply the required gas with a maxi-

mum pressure drop of 1/2" wc. When gas piping is

not included in the layout drawing, the local gas sup-

plier will usually help in planning the gas piping.

6.3 Electrical Service Requirements

The CGTH-Series heater requires a grounded three-

prong electrical outlet to be installed within 18" of the

rear surface of the heater’s burner box. It is recom-

mended that the outlet for the heater be ceiling-

mounted and should be on a dedicated circuit. DO

NOT use an electrical extension cord to operate the

heater.

Heater Rating: 120 VAC, 60 hz, 1 Ø, 1 A

6.3.1 Grounding

The heater must be electrically grounded in accor-

dance with the following codes: United States: Refer

to National Electrical Code

, NFPA 70 - latest revi-

WARNING

Explosion Hazard

Tighten gas hose fittings to connect gas

supply according to Figure 36.

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.

DANGER

Electrical Shock Hazard

Plug heater into grounded three-prong ceiling

receptacle.

Do not cut or remove the grounding prong

from this plug.

Do not use with an extension cord.

Failure to follow these instructions can result

in death or electrical shock.

SECTION 6: HEATER INSTALLATION REQUIREMENTS

13 of 55

sion. Wiring must conform to the most current

National Electrical Code

, local ordinances and any

special diagrams furnished.

Canada: Refer to Canadian Electrical Code, CSA

C22.1 Part 1 - latest revision.

6.3.2 Thermostat

It is important to note that the CGTH-Series heater is

controlled by a low voltage (24V AC) thermostat sup-

plied with the heater. The control transformer located

inside the burner supplies the necessary electrical

power to operate the thermostat. No other electrical

power to the thermostat is required.

6.4 Venting Requirements

The CGTH-Series heater must be installed with the

venting system supplied or with the optional venting

kit available from Roberts-Gordon LLC. DO NOT

connect this heater to a separate chimney and do not

common 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:

Maximum Length: 10' (3 m)

Minimum Length: 2.5' (.7 m)

Maximum Elbows:Two with natural gas units,

one with propane gas units

6.4.1 Venting Codes

The location, size, installation and termination of

vents, as well as the required safe distances from

combustibles when penetrating combustible walls,

must comply with local codes and recommendations

of the local gas company. United States: Refer to

National Fuel Gas Code NFPA 54/ANSI Z223.1 - latest

revision. Canada: Refer to Natural Gas and Propane

Installation Code CSA B149.1 - latest revision.

6.4.2 Balanced Flue Construction

The balanced flue consists of a 3" (8 m) diameter flue

which is concentrically positioned inside a 5" (13 cm)

diameter vent pipe (See Figure 5). The 5" (13 cm)

diameter vent supplies outside air for combustion

while the 3" (8 cm) diameter flue carries the products

of combustion from the heater.

The balanced flue is applicable for both horizontal

and vertical venting arrangements. Vertical venting

will require the optional roof venting kit available from

Roberts-Gordon LLC.

FIGURE 5: Balanced Flue

6.5 Non-Residential Installations

6.5.1 Aircraft Hangars

The CGTH-Series heater may be used in certain

areas of aircraft hangars. Installation in aircraft han-

gars must be in accordance with the following codes:

United States: Refer to Standard for Aircraft Hangars,

NFPA 409 - latest revision. Canada: Refer to Natural

Gas and Propane Installation Code CSA B149.1 - lat-

est revision.

WARNING

Carbon Monoxide Hazard

Heaters must be exhausted outside.

Use materials supplied.

This heater needs fresh air for safe operation

and must be installed so there are provisions

for adequate combustion and ventilation air.

Failure to follow these instructions can result

in death or injury.

WARNING

Cut/Pinch Hazard

Wear protective gear during installation,

operation and service.

Edges are sharp.

Failure to follow these instructions can result

in injury.

Exterior Wall

Outside Air

ExhaustExhaust

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

14 of 55

• Heaters in aircraft storage or service areas must

be installed a minimum of 10' (3 m) above the

upper surface of wings or engine enclosures of

the highest aircraft which may be housed in the

hangar. (This should be measured from the bot-

tom of the heater to the top of the wing, or engine

enclosure, whichever is highest from the floor).

• In other sections of aircraft hangars, such as

shops or offices, heaters must be installed a mini-

mum of 8' (2.4 m) above the floor.

• Heaters installed in aircraft hangars shall be

located so as not to be subject to damage by air-

craft, cranes, movable scaffolding or other

objects.

• 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.

6.5.2 Public Garages

The CGTH-Series heater may be used in public

garages. Installation in public garages must be in

accordance with the following codes: United States:

Refer to Standard for Parking Structures NFPA 88A - lat-

est revision or the Code for Motor Fu

el Dispensing Facil-

ities and Repair Garages, NFPA 30A - latest revision.

Canada: Refer to Natural Gas and Propane Installation

Code CSA B149.1 - latest revision.

• Heaters must be installed a minimum of 8' (2.4 m)

above the floor. Required safe distances to com-

bustibles 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.

6.5.3 High Altitude

These heaters are approved for installations up to

2000' (610 m)(US), 4500' (1370 m)(Canada) without

modification. Consult factory if US installation is

above 2000' (610 m) or Canadian installation is

above 4500' (1370 m).

6.5.4 Hazardous Locations

Where there is the possibility of exposure to combus-

tible airborne material or vapor, consult the local fire

marshal, the fire insurance carrier or other authorities

for approval of the proposed installation.

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