Roberts Gorden Patio Heater CTH2 100 User Guide

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.

Vantage II

Gas-Fired, Low Intensity

Unitary Heater

8. If you cannot reach your gas

supplier, call the Fire Department.

WARNING

Installation, Operation &

Service Manual

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

Fire Hazard

Keep all flammable objects, liquids and

vapors the minimum required clear-

ances 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.

Installer

WARNING

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.

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.

Owner

Keep this manual in a safe place in order to provide

your serviceman with necessary information.

Installation must be done by a contractor qualified

in the installation and service of gas-fired heating

equipment or your gas supplier.

Roberts-Gordon LLC

1250 William Street

P.O. Box 44

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

P/N 130100NA Rev. M 02/12

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TABLE OF CONTENTS

SECTION 1: Heater Safety......................................................1 SECTION 9: Gas Pipin g ........................................................ 40

1 .1 Manpo w er Req u irements .............................................1 SECTION 10: Wirin g .............................................................. 42

1 .2 Safety Labels and Their Placement .............................1

1 .3 California Proposition 65 ..............................................1

SECTION 2: Installer Responsibility .....................................4

2.1 Wall T a g .......................................................................4

2.2 Corrosi v e Chemicals....................................................4

2.3 National Standards and Applicable Codes ..................4

SECTION 3: Clearances to Combustibles.............................5

10.1 Line Voltage Thermostat Wiring............................... 42

10.2 Lo w Voltage Thermostat w ith One B u rne r ............... 42

10.3 Low Voltage Thermostat Wiring with Multiple Burners.

10.4 Internal Wiring.......................................................... 43

10.5 Ladder Diagra m ....................................................... 44

10.6 Electrical Connection to the B u rner ......................... 44

3.1 Req u ired Clearances to Comb u stibles.........................5 SECTION 11: Operation and Maintenance.......................... 45

SECTION 4: National Standards and Applicable Codes .....9

4.1 Gas Codes...................................................................9

4.2 Aircraft Hangars ...........................................................9

4.3 P u blic Garages ............................................................9

4.4 Electrical ......................................................................9

11 .1 Seq u ence of Operation ............................................ 45

11 .2 T o S h u t Off Heate r .................................................... 45

11 .3 T o S tart Heater ......................................................... 45

11 .4 Pre-Season Maintenance and Ann u al Inspection..... 45

11 .5 Maintenance Checklist ............................................. 46

4.5 Venting.........................................................................9 SECTION 12: Troubleshootin g ............................................. 4 8

4.6 High Altit u de ................................................................9

SECTION 5: Major Components .......................................... 10

5.1 Standard Parts List .................................................... 1 1

12.1 Honey w ell SmartVal v e^®II Troubleshooting.............. 49

12.2 T r o u bleshooting Flo w Chart..................................... 50

12.3 Manifold Gas Press u re Setting ................................ 52

SECTION 6: Heater Installation............................................ 13 SECTION 13: Replacement Parts ........................................ 53

6.1 B u rner T u be Installation ............................................1 8 SECTION 14: General Specification s .................................. 56

6.2 T u be Clamp Package Installatio n ..............................1 8

6.3 Co u pling and T u be Assembly....................................1 9

6.4 T u rb u lator Installatio n ................................................2 0

6.5 Reflector Installation ..................................................2 1

14.1 Material Specification s ............................................. 56

14.2 Heater Specifications............................................... 56

14.3 S u spension Specifications....................................... 56

14.4 Controls Specifications ............................................ 56

6.6 B u rner Installation......................................................2 3 SECTION 15: The ROBERTS GORDON^®VANTAGE^®II

Warranty......................................................... 57

SECTION 7: Optional Heater Accessorie s ..........................2 4

7. 1 U - T u be Config u ration..................................................2 4

7 .2 Elbo w Package Config u ration.....................................2 8

7 .3 Reflector Side Extension ............................................3 0

7. 4 L o w er Clearance Shield Installation ...........................3 1

7. 5 T w o-Foot Decorati v e Grille Installation .......................3 1

7 .6 Protecti v e Grille Installation ........................................3 3

SECTION 8 : Ventin g ..............................................................3 4

8.1 General Venting Req u irements..................................3 4

8.2 Un v ented Operation...................................................3 4

8.3 Horizontal Venting......................................................3 5

8.4 Vertical Ventin g ..........................................................3 5

8.5 Un v ented Operation T u be T e rmination ......................3 5

8.6 Length Req u irements ................................................3 5

8.7 Horizontal Ventilation 4" (10 cm) Pipe........................3 5

8.8 Vertical Ventilation 4" (10 cm) Pip e ............................3 6

8.9 Common Side w all Venting.........................................3 6

8.10 Common Vertical Venting ........................................3 7

8.1 1 O u tside Comb u stion Air S u pply ...............................3 8

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.

Printed in U.S.A.

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TABLE OF FIGURES

Fig u re 1: T o p and Bottom Panel Label Placemen t ....................2

Fig u re 2: Side and Back Panel Label Placemen t ......................3

Fig u re 3: Standard Reflector .....................................................5

Fig u re 4: One Side Reflector.....................................................6

Fig u re 5: T w o Side Reflectors ...................................................6

Fig u re 6: 45° Tilt Reflector ........................................................6

Fig u re 7: U-T u be, Standard Reflector........................................7

Fig u re 8: U-T u be, 45 °................................................................7

Fig u re 9: U-T u be, Opposite 45° Reflector .................................7

Fig u re 10: 2-Foot Deco Grille and Protecti v e Grille ...................8

Fig u re 1 1 : Lo w er Clearance Shield*..........................................8

Fig u re 12: Ventin g .....................................................................8

Fig u re 13: Major Component Descriptions.............................. 10

Fig u re 14: Critical Hanger Placement ..................................... 14

Fig u re 15: Linear Heater Assembly O v er v ie w ........................ 15

Fig u re 16: Linear Heater Layo u t O v er v ie w .............................. 16

Fig u re 17: Linear Heater Layo u t O v er v ie w (Contin u ed ).......... 17

Fig u re 18: U-T u be Heater Assembly O v er v ie w ......................2 5

Fig u re 19: U-T u be Heater Layo u t O v er v ie w ............................2 6

Fig u re 20: U-T u be Heater Layo u t O v er v ie w (Contin u ed) ........2 7

Fig u re 21: Reflector Joint Detai l ..............................................2 9

Fig u re 22: T u be T e rmination ...................................................3 5

Fig u re 23: Gas Connection w ith Flexible Gas Hose ...............4 1

LIST OF TABLES

Table 1: Contents of the B u rner Carto n ..................................1 1

Table 2: Contents of Core and Extension Packages ..............1 1

Table 3: Component Package G u ide......................................1 2

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SECTION 1: HEATER SAFETY

Your Safety is Important to Us!

1.1 Manpower Requirements

This symbol is used throughout

the manual to notify you of possi-

ble fire, electrical or burn hazards.

To prevent personal injury and damage to the heater,

two persons will be required for installation.

Please pay special attention when

reading and following the

1.2 Safety Labels and Their Placement

warnings in these sections.

Product safety signs or labels should be replaced by

the product user when they are no longer legible.

Please contact Roberts-Gordon or your ROBERTS

GORDON^®independent distributor to obtain

replacement signs or labels. See Page 2, Figure 1

through Page 3, Figure 2.

Installation, service and annual inspection of heater

must be done by a contractor qualified in the installa-

tion and service of gas-fired heating equipment.

Read this manual carefully before installation, opera-

tion or service of this equipment.

This heater is designed for heating nonresidential

indoor spaces. Do not install in residential spaces.

These instructions, the layout drawing, local codes

and ordinances, and applicable standards that apply

to gas piping, electrical wiring, venting, etc. must be

thoroughly understood before proceeding with the

installation.

1.3 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 2, Figure 1 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.

Protective gear is to be worn during installation,

operation and service. Thin sheet metal parts, includ-

ing the aluminum reflector portion of the heater and

the various venting components, have sharp edges.

To prevent 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.

Before installation, check that the local distribution

conditions, nature of gas and pressure, and adjust-

ment of the appliance are compatible.

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

knowledge, unless they have been given supervision

or instruction concerning use of the appliance by a

person 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.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 1: Top and Bottom Panel Label Placement

Logo Label

Rating Plate Label

Bottom

Panel

Proposition 65 Label

Top Panel

Description

Logo Label

Rating Plate Label

Gas Connection Label

Proposition 65 Label

Part Number

91013200

91010401

91018122

91070015

Gas Connection Label

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SECTION 1: HEATER SAFETY

FIGURE 2: Side and Back Panel Label Placement

Control Side Panel

Clearances to Combustibles Label

Control Side Panel (Inside)

Wiring Label

Vent Length Label

Thermostat

Connection

Label

Back Panel

Lighting Instruction Plate Label

Description

Clearances to Combustibles Label

Wiring Label

Low Voltage Connection Label

Vent Length Label

Lighting Instruction Plate Label

Part Number

91013415

91013300

91039700

91039500

91029602

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 2: INSTALLER RESPONSIBILITY

on the burner and in the Installation, Operation and

Service Manual. See Page 5, Figure 3 through Page

8, Figure 12. Write the proper clearance dimensions

in permanent ink according to your model number

and configuration in the open spaces on the tag.

The installer is responsible for the following:

• To install the heater, as well as the gas and electri-

cal supplies, in accordance with applicable specifi-

cations and codes. Roberts-Gordon recommends

the installer contact a local Building Inspector or

Fire Marshal for guidance.

2.2 Corrosive Chemicals

• To use the information given in a layout drawing

and in the manual together with the cited codes

and regulations to perform the installation.

CAUTION

• To install the heater in accordance with the

clearances to combustibles.

• To furnish all needed materials not furnished as

standard equipment.

Product Damage Hazard

• To plan location of supports.

Do not use heater in area containing

corrosive chemicals.

• To provide access to burners for servicing on all

sides for burner removal.

Refer to appropriate Material Safety Data

Sheets (MSDS).

• To provide the owner with a copy of this installa-

tion, operation and service manual.

Failure to follow these instructions can result

in product damage.

• To never use heater as support for a ladder or

other access equipment and never hang or sus-

pend anything from heater.

Roberts-Gordon cannot be responsible for ensuring

that all appropriate safety measures are undertaken

prior to installation; this is entirely the responsibility of

the installer. It is essential that the contractor, the

sub-contractor, or the owner identifies the presence

of combustible materials, corrosive chemicals or

halogenated hydrocarbons* anywhere in the

premises.

• To ensure there is adequate air circulation around

the heater and to supply air for combustion, venti-

lation and distribution in accordance with local

codes.

• To safely and adequately install heater using

materials with a minimal working load of 75 lbs

(33 kg).

• To ensure the heater is placed in a approved

application.

* Halogenated Hydrocarbons are a family of chemical

compounds characterized by the presence of halogen

elements (fluorine, chlorine, bromine, etc.). These com-

pounds are frequently used in refrigerants, cleaning

agents, solvents, etc. If these compounds enter the air

supply of the burner, the life span of the heater compo-

nents will be greatly reduced. An outside air supply must

be provided to the burners whenever the presence of

these compounds is suspected. Warranty will be invalid if

the heater is exposed to halogenated hydrocarbons.

2.1 Wall Tag

A laminated wall tag is available for the heater as a

permanent reminder of the safety instructions and

the importance of the required clearances to com-

bustibles. Please contact Roberts-Gordon or your

ROBERTS GORDON^®independent distributor to

obtain the wall tag. Affix the tag by peeling off the

backing of the adhesive strips on the rear surface

and position the tag on a wall near the heater (e.g.

thermostat or ROBERTS GORDON^®Controller).

2.3 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.

A copy of the wall tag (P/N 91037912) is illustrated on

the back cover. For an immediate solution, you may

affix this copy on the wall near the heater.

Know your model number and installed configuration.

Model number and installed configuration are found

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SECTION 3: CLEARANCES TO COMBUSTIBLES

WARNING

3.1 Required Clearances to Combustibles

Clearances are the required distances that combusti-

ble objects must be away from the heater to prevent

serious fire hazards. Combustibles are materials that

may catch on fire and include common items such as

wood, paper, rubber, fabric, etc. Maintain clear-

ances to combustibles at all times for safety.

Fire Hazard

Clearances for all heater models are located on the

burner of the heater and on Page 5, Figure 3 through

Page 8, Figure 12 in this manual. Check the clear-

ances on each burner for the model heater being

installed to make sure the product is suitable for your

application and the clearances are maintained. Read

and follow the safety guidelines below:

Keep all flammable objects, liquids and

vapors the minimum required clearances 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.

• Keep gasoline or other combustible materials

including flammable objects, liquids, dust or

vapors away from this heater or any other appli-

ance.

• In locations used for the storage of combustible

materials, signs must be posted to specify the

maximum permissible stacking height to maintain

required clearances from the heater to the com-

bustibles. Signs must be posted adjacent to the

heater thermostat. In the absence of a thermostat,

signs must be posted in a conspicuous

location.

• The stated clearances to combustibles represents

a surface temperature of 90° F (50°C) above room

temperature. Building materials with a low heat tol-

erance (such as plastics, vinyl siding, canvas, tri-

ply, etc) may be subject to degradation at lower

temperatures. It is the installer’s responsibility to

assure that adjacent materials are protected from

degradation.

• Consult local Fire Marshal, Fire Insurance Carrier

or other authorities for approval of proposed instal-

lation when there is a possibility of exposure to

combustible airborne materials or vapors.

• Maintain clearances from heat sensitive

equipment and workstations.

• Maintain clearances from vehicles parked below

the heater.

• Hang heater in accordance to the minimum sus-

pension requirements on Page 14, Figure 14

• Maintain clearances from swinging and overhead

doors, overhead cranes, vehicle lifts, partitions,

storage racks, hoists, building construction, etc.

• If the radiant tubes must pass through the building

structure, be sure that adequate sleeving and fire

stop is installed to prevent scorching and/or fire

hazard.

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream

from where the burner and burner tube connect.

FIGURE 3: STANDARD REFLECTOR

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

135

161

168

181

196

204

209

102

117

127

133

102

117

127

133

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream

from where the burner and burner tube connect.

FIGURE 4: ONE SIDE REFLECTOR

Model

(inches)

(centimeters)

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

135

161

178

196

211

219

224

112

120

138

150

166

176

186

FIGURE 5: TWO SIDE REFLECTORS

Model

(inches)

(centimeters)

102

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

135

168

183

199

214

224

232

FIGURE 6: 45° TILT REFLECTOR

Model

(inches)

(centimeters)

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

130

153

168

188

199

214

216

117

138

153

163

176

188

201

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SECTION 3: CLEARANCES TO COMBUSTIBLES

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream

from where the burner and burner tube connect.

FIGURE 7: U-TUBE, STANDARD REFLECTOR

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

- UNAPPROVED -

161

176

194

201

214

221

102

117

127

138

100

110

120

130

FIGURE 8: U-TUBE, 45°

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

- UNAPPROVED -

153

168

188

199

214

216

107

117

133

155

168

178

FIGURE 9: U-TUBE, OPPOSITE 45° REFLECTOR

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

- UNAPPROVED -

138

153

163

178

188

194

153

168

188

199

214

216

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream

from where the burner and burner tube connect.

FIGURE 10: 2-FOOT DECO GRILLE AND PROTECTIVE GRILLE

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

135

161

168

181

196

204

209

102

117

127

133

102

117

127

133

FIGURE 11: LOWER CLEARANCE SHIELD*

Model

(inches)

(centimeters)

CTH2-40

CTH2-60

CTH2-80

100

102

127

138

140

100

102

127

138

140

CTH2-100

CTH2-125

CTH2-150

CTH2-175

112

122

127

- UNAPPROVED -

*When installed in the first 10' (3 m).

FIGURE 12: VENTING

(inches)

(centimeters)

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

Unvented

Vent

Pipes

Radiant Tubes

Vented

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SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

SECTION 4: NATIONAL STANDARDS AND

APPLICABLE CODES

4.1 Gas Codes

4.3 Public Garages

The type of gas appearing on the nameplate

must be the type of gas used. Installation must

comply with national and local codes and

requirements of the local gas company.

Installation in garages must be in accordance

with the following codes:

United States: Refer to Standard for Parking

Structures NFPA 88A - latest revision or the

Code for Motor Fuel Dispensing Facilities and

Repair Garages, NFPA 30A - latest revision.

Canada: Refer to Natural Gas and Propane

Installation Code CSA B149.1 - latest revision.

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.

• Heaters must not be installed less than 8'

(2.4 m) above the floor. Minimum clearances to

combustibles must be maintained from vehicles

parked below the heater.

4.2 Aircraft Hangars

Installation in aircraft hangars must be in

accordance with the following codes:

• When installed over hoists, minimum

clearances to combustibles must be maintained

from the upper most point of objects on the hoist.

United States: Refer to Standard for Aircraft

Hangars, NFPA 409 - latest revision.

Canada: Refer to Natural Gas and Propane

Installation Code CSA B149.1 - latest revision.

4.4 Electrical

In aircraft storage and servicing areas, heaters

shall be installed at least 10' (3 m) above the

upper surface of wings or of engine enclosures

of the highest aircraft which may be housed in

the hangar. The measurement shall be made

from the wing or engine enclosure (whichever is

higher from the floor) to the bottom of the heater.

The heater must be electrically grounded in

accordance with the following codes:

United States: Refer to National Electrical

Code^®, NFPA 70 - latest revision. Wiring must

conform to the most current National Electrical

Code^®, local ordinances and any special

diagrams furnished.

• In shops, offices and other sections of aircraft

hangars communicating with aircraft storage or

servicing areas, heaters shall be installed not

less than 8' (2.4 m) above the floor.

Canada: Refer to Canadian Electrical Code,

CSA C22.1 Part 1 - latest revision.

4.5 Venting

• Suspended or elevated heaters shall be so

located in all spaces of aircraft hangars that they

shall not be subject to injury by aircraft, cranes,

movable scaffolding or other objects. Provisions

shall be made to assure accessibility to

suspended heaters for recurrent maintenance

purposes.

The venting must be installed in accordance with

the requirements within this manual and the

following codes:

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.

4.6 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).

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 5: MAJOR COMPONENTS

FIGURE 13: Major Component Descriptions

Reflector

(Aluminum or

Stainless

Burner with Tube Gasket

Must be installed with the

flame observation

Steel)

window facing down.

Alternate overlap as

shown on overview and

on Page 16, Figure 16.

Minimum overlap is 6" (16 cm).

Burner Tube

Supplied in 10'

Tube

Hot rolled or heat

treated aluminized tube

supplied in 10' (3 m) lengths.

(3 m) lengths. Burner

tube is always the first tube

after the burner.

Coupling Assembly

with Lock

Tube and Reflector Hanger

with Clamp Package

Position this hanger no more

than 4" (10 cm) away from the

burner.

Reflector End Cap

Punch out center

section to

Tube and Reflector Hanger

Suspend system from these

hangers.

accommodate tube.

Vent Adapter

Reflector Support Strap &

Wire Form

Turbulator

Turbulator must

be installed in the last

standard section of tube.

Turbulator is not required on the

CTH2-125/150/175. For

installation see Page 20,

Section 6.4.

Flex Gas Line with

Shut Off Cock

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SECTION 5: MAJOR COMPONENTS

5.1 Standard Parts List

Table 1: Contents of the Burner Carton

Part No.

Description

CTH2-40 CTH2-60 CTH2-80 CTH2-100 CTH2-125 CTH2-150 CTH2-175

030XXXXX Burner Assembly (Rate and Fuel Varies)

02568200 Gasket (Burner to Burner Tube)

130100NA Installation, Operation and Service Manual

94273914 Hex Head Bolts 5/16-18 Rolok

96411600 Split Lock washer

91201708 Pipe Nipple (Black) 1/2” NPT x 4”

91317300 1/4" Quick Disconnect (Wire)

*91412200 Flexible Stainless Steel Gas Hose - 1/2" NPT (US Models Only)

*91412204 Flexible Stainless Steel Gas Hose - 3/4" NPT (US Models Only)

03051503 Turbulator Adapter

03051504 Turbulator Aluminized Steel

03051505 Turbulator Stainless Steel

*Canadian Models: Rubber (Type 1) Gas Hoses available as an accessory. See Page 40, Section 9

Table 2: Contents of Core and Extension Packages

Core Packages

Extension Packages

Hot Rolled Aluminized

Part No.

Description

(3 m)

40'

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

91409300

91409408

03051101

03051601

Tube, Hot Rolled Steel, 10

Tube, HT Aluminized, 10 (3 m)

Burner Tube, ALUMI-THERM^®Steel, 10

Burner Tube, HT ALUMI-THERM^®Steel, 10

(3 m)

01312700 Coupling Assembly

02750303

Standard Reflector, 8

(3.5 m)

02750800 End Cap

03090100 Tube and Reflector Hanger

91907302 S-Hook

03050010 Reflector Support Package (Strap, Wire Form, Screws)

91107720 U-Clip Package

90502700 Vent Adapter

01318901 Tube Clamp Package

Part Number

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Table 3: Component Package Guide

Tubing Length

Core Packages

Model

Minimum

Standard

Aluminized

CP10ALUM

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

10’ (3m)

20’ (6m)

30’ (9m)

40’ (12m)

50’ (15m)

60’ (18m)

CP20HRS

CP30HRS

CP40HRS

CP20ALUM

CP30ALUM

CP40ALUM

CP30HRS + EXP20HRS

CP30HRS + EXP30HRS

CP30ALUM + EXP20ALUM

CP30ALUM + EXP30ALUM

Additional tubing length may be added to heater. Tubing must be heat-treated, aluminized or porcelain

coated. Any additional tubing lengths are considered as vent length for length determination. Maximum

venting length for minimum heater length is 45' (13.7 m) total.

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SECTION 6: HEATER INSTALLATION

Typical installation configurations are shown in

Figure 14.

WARNING

Expansion and contraction of the tube dictates that

the minimum suspension lengths in the table on

Page 14, Figure 14 be maintained.

Severe Injury Hazard

Secure burner to burner tube with bolts and

lockwashers.

Hang heater with materials with a minimum

working load of 75 lbs (33 kg).

Failure to follow these instructions can result

in death, injury or property damage.

WARNING

Cut/Pinch Hazard

Wear protective gear during installation,

operation and service.

Edges are sharp.

Failure to follow these instructions can result

in injury.

To ensure your safety, and comply with the terms of

the warranty, all units must be installed in accor-

dance with these instructions.

The gas or the electrical supply lines must not be

used to support the heater.

Do not locate the gas or electric supply lines directly

over the path of the flue products from the heater.

The heater must be installed in a location that is

readily accessible for servicing.

The heaters must be installed in accordance with

clearances to combustibles as indicated on the rating

plate and in this instruction manual.

The minimum and maximum gas inlet pressures

must be maintained as indicated on the rating plate.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 14: Critical Hanger Placement

Typical Suspension Details

Beam Clamp

Concrete Beam

Wood Beam

Locknut

Anchor

Screw Hook

3/8"

Chain Size

3/16"

Washers

Rod 3/8"

“X”*

Minimum

24" min.*

(61 cm)

S-hooks

Turnbuckle

Not Included

* Allows for thermal expansion of system

S-hooks

Hanger

Side View

Hanger

Reflector

Must Be Within 4" (10 cm)

Front View

45° Angle

Description

S-Hook

Tube/Reflector Hanger

Part Number

91907302

03090100

Run Length

Typical Expansion Minimum “X” Length

10' (3 m) - 50' (15 m)

51' (15 m) - 60' (18 m)

61' (18 m) - 70' (24 m)

1" (3 cm)

2" (5 cm)

3" (8 cm)

12" (305 mm)

18" (457 mm)

24" (609 mm)

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SECTION 6: HEATER INSTALLATION

FIGURE 15: Linear Heater Assembly Overview

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 16: Linear Heater Layout Overview

LEGEND

Burner

Reflector

Tube

10' Tube Length

Tube/Reflector

Hanger

Coupling

Assembly

Vent Adapter

a = 14" (36 cm)

reflector width (not shown)

b = 2" (5 cm)

end cap to burner

20' Tube Length

c = 2" (5 cm)

end cap to hanger

d = 7'6" (229 cm)

distance first hanger

e = 10' (305 cm)

distance between hangers

f = 9.5" (24 cm)

burner height

30' Tube Length

g = 17.5" (44 cm)

burner length

40' Tube Length

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SECTION 6: HEATER INSTALLATION

FIGURE 17: Linear Heater Layout Overview (Continued)

50' Tube Length

60' Tube Length

70' Tube Length

80' Tube Length

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.1 Burner Tube Installation

NOTE:

Tubing requires a downward

slope of 1/2" (1.3 cm)

per 20' (6 m) away

from burner.

Offset mounting

hole must be

to the top.

S-hook

Hanger

Burner Tube

Weld seam

must be to the

bottom of the tube.

7' 6" ± 1'

(229 cm ± 25 cm)

Description

Part Number

Burner Tube

S-Hook

Tube/Reflector Hanger

03051XXX

91907302

03090100

Step 6.2 Tube Clamp Package Installation

Bolt

Tube Clamp

Flat

Washer

Nut

(Torque 120 in/lb

13.56 Nm)

Description

Tube Clamp Package

Tube Clamp

Bolt

Flat Washer

Nut

Part Number

01318901

01396801

97113940

95211600

92113900

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SECTION 6: HEATER INSTALLATION

Step 6.3 Coupling and Tube Assembly

Close coupling

A_{with tab.}

Start Slide bar/Coupling Lock

B _{onto coupling.}

Tab

Slide Bar/Coupling Lock

Wide End

Coupling

Open

3" (8 cm) to

4" (10 cm)

Closed

Insert tubes into coupling.

Tighten coupling to join tubes.

Slide Bar/Coupling Lock

Coupling

Orient coupling so that

the impact block is in the

2:00 or 10:00 o’clock

positions.

Tube

Description

Coupling

Part Number

01329600

Tube

Slide Bar/Coupling Lock

Tube

01329700

91409XXX

Step 6.3.1 Coupling and Tube Assembly (Continued)

Tighten slide bar as shown below.

Drive slide bar until tight.

End of slide bar should be

within tolerance listed below.

± 2" (5 cm)

Correct slide bar

dimensions

Incorrect slide bar

position

• Repeat Step 6.3 A - D until all tubes are assembled. See Page 20, Section 6.3.2.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.3.2 Coupling and Tube Assembly (Continued)

Model

Tube Length Minimum

10' (3 m)

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

20' (6 m)

30' (9 m)

40' 12 m)

50' (15 m)

60' (18 m)

7' 6" 1'

(2.3 m .25 m)

10' 1'

(3 m .25 m)

Total Overall

Tube Length

Step 6.4 Turbulator Installation

Turbulator must be installed in

the last standard section of

tube. Turbulator is not required

on the CTH2-125/150/175.

Turbulator Installation

Turbulator

Section

Model

Tube Section

1st 10' Section

2nd 10' Section

3rd 10' Section

N/A

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

Turbulator

Adapter

Tab

Turbulator Section

N/A

(stainless) used in CTH2-40

heaters must be in the section of

tube nearest to the burner.

Pull String

Fold tab around outside

of tube nearest to the vent to hold turbulator

in place. Where a vent sleeve

is used, do not fold tab.

Description

Part Number

03051503

03051504

03051505

91409XXX

Turbulator Adapter

Turbulator Section

Turbulator Section (stainless)

Tube

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SECTION 6: HEATER INSTALLATION

Step 6.5 Reflector Installation

WARNING

Fire Hazard

Support reflector with reflector hanger

and support strap.

Reflector must not touch tube.

Failure to follow these instructions can result

in death, injury or property damage.

NOTE: All tube surfaces must be covered

by a reflector, except for a U-Tube.

Hanger

Burner Tube

Reflector

Description

Tube/Reflector Hanger

Burner Tube

Part Number

03090100

03051XXX

02750303

Reflector

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.5.1 Reflector, U-Clip and Reflector Support Installation

The pictorial drawings of the heater construction in

tor supports and U-clips depends on the individual

Section 6 are schematic only and provide a general installation. Use either pop rivets or sheet metal

guideline of where hangers, reflector supports and

U-clips are to be installed.

screws instead of u-clips when installing end caps

and joint pieces in areas where impact and high wind

may be a factor. The following rules must be

observed.

To ensure proper expansion and contraction move-

ment of the reflectors, a combination of U-clips and

reflector supports are used. The positioning of reflec-

1. The first reflector after the burner must be affixed in

the middle of the reflector with a reflector support and

tight screws.

Tight

Sheet Metal

Screw

Wire Form

Reflector

End Cap

First Reflector

Reflector Support

Strap

U-clips

2 B

Slip Overlap

Overlap must be a

minimum of " (16 cm).

(16 cm)

Reflector

Support

2. The overlap at the first and second reflector is a slip overlap.

Thereafter, every third reflector joint is a slip overlap. A slip

overlap is achieved by either:

Loose screws

loosened 1/16"

(.16 cm) to allow

slippage.

a.) both reflectors lay inside a hanger.

(No reflector support needed.)

b.) using a reflector support with

loose screws at the reflector

2 A

Slip Overlap

overlap.

3. The remaining reflector overlaps require a non-slip

overlap connection. To affix the reflectors together in

a non-slip overlap either:

3 A

Non-Slip Overlap

a.) use reflector support and tight screws.

b.) if both reflectors lay inside a hanger, u-clips or

sheet metal screws may be used.

Reflector

This section of three reflectors joined together must

be affixed to the tube with at least one reflector support

with tight screws.

Tight

Screws

3 B

Non-Slip Overlap

Description

Part Number

03050010

91908004

03050000

94320812

91107720

027508XX

Reflector Support Package

Wire Form

Reflector Support Strap

Screw #8 x 3/4

U-clip

(2 Clips per

U-Clip Package

Non-slip Overlap

Inside a Hanger)

Reflector End Cap

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SECTION 6: HEATER INSTALLATION

Step 6.6 Burner Installation

Burner

Gasket

S-hook

Burner Tube

Burner must be installed

with the flame observation

window facing down.

Lock

Washer

Bolt

(Torque 120 in/lb

13.56 Nm)

Description

Bolt

Burner

Part Number

94273914

030XXXXX

96411600

Lock Washer

Gasket

02568200

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 7: OPTIONAL HEATER ACCESSORIES

WARNING

Cut/Pinch Hazard

Wear protective gear during installation,

operation and service.

Edges are sharp.

Failure to follow these instructions can result

in injury.

7.1 U-Tube Configuration

Heaters (except CTH2-40) are approved for optional

U-Tube configurations.

The U-Tube may be installed in either a standard hor-

izontal position, a 45° position or in an opposite 45°

position as shown on Page 7 , F igure 7 through Figure

9. When using a U-Tube configuration, the following

additional rules must be adhered to:

• A minimum of 10' (3 m) on CTH2-60/80 and a min-

imum of 15' (4.5 m) on CTH2-100/125/150/175 is

required between the burner and the U-Tube.

• The correct turbulator (See Page 20, Figure 6.4

must be installed in the last standard section of

tube.

)

• The burner must never be operated in a tilted posi-

tion.

• The heater must be properly supported at all loca-

tions. See Page 26, Figure 19

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SECTION 7: OPTIONAL HEATER ACCESSORIES

FIGURE 18: U-Tube Heater Assembly Overview

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 19: U-Tube Heater Layout Overview

LEGEND

Burner

Reflector

Tube 10'

Tube 5' **

20' Tube Length*

Tube/Reflector

Hanger

Coupling

Assembly

U-Tube

a = 14" (36 cm)

reflector width (not shown)

b = 2" (5 cm)

end cap to burner

30' Tube Length

c = 2" (5 cm)

end cap to hanger

d = 7'6" (229 cm)

distance first hanger

e = 10' (305 cm)

distance between hangers

f = 5' (153 cm)

distance between last full tube

hanger and half tube hanger

g = 17.5" (44 cm)

burner length

40' Tube Length

h = 9.5" (24 cm)

burner height

*Requires the last reflector

before the U-Tube to be cut

in half for use on both sides.

**Requires the last tube before

the U-Tube to be cut in half for

use on both sides.

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SECTION 7: OPTIONAL HEATER ACCESSORIES

FIGURE 20: U-Tube Heater Layout Overview (Continued)

50' Tube Length* **

60' Tube Length

70' Tube Length**

80' Tube Length

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

7. 2 E l b o w Pa c k a ge Configuration

Step 7.2.1 Elbow Installation

Tube

Coupling

Minimum Distance Required Between

Burner and Elbow

Model

MinimumDistance

Description

Elbow Package

90° Elbow

Part Number

02718702

01335801

01312700

02750800

02750900

91107720

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

10' (3 m)

15' (4.5 m)

90° Elbow

Coupling

Reflector End Cap

Reflector Joint Piece

U-Clip Package

Step 7.2.2 Elbow Installation

Tube

Coupling

Step 7.2.3 Reflector Joint Installation

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SECTION 7: OPTIONAL HEATER ACCESSORIES

Step 7.2.4 Reflector Joint Installation

Step 7.2.5 Reflector Joint Detail

FIGURE 21: Reflector Joint Detail

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

7.3 Reflector Side Extension

Step 7.3.1 Bracket Installation

Tube

Reflector

Tube and Reflector Hanger

Reflector Support

Reflector Side

Extension Bracket

(2 per Reflector)

Use additional supports

in high air movement

applications.

Description

Part Number

02712700

01368000

02751200

94118106

Reflector Side Extension Package

Reflector Side Extension

Retainer Clips

Sheet Metal Screws

Order Separately

Reflector Side Extension

01329910

Step 7.3.2 Side Reflector Installation

#8 x 3/8 (3.9 x 9.5 mm) Sheet Metal Screw

Cut relief notches for

supports and hangers.

Retainer Clip

(2 per Side)

Reflector Side Extension

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SECTION 7: OPTIONAL HEATER ACCESSORIES

7.4 Lower Clearance Shield Installation

Step 7.4.1 Shield Support Strap Assembly

Reflector

12"

(30 cm)

17"

(43 cm)

Align Pilot Holes

Lower Clearance Shield

Locknuts

Washers

Screws

Description

Part Number

Lower Clearance Shield Package

Shield Support Strap

Lower Clearance Shield 8'

Locknut #8

Flat Washer #8

Screw #8 x 3/8"

01397501

01397500

02793000

92311400

95310800

93511406

7.5 Two-Foot Decorative Grille Installation

Step 7.5.1 Grille Installation

Description

Part Number

Aluminum Grille 2' x 4' (.6m x 1.2 m)

91407000

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 7.5.2 Frame Shield Installation

Description

Part Number

Deco Grille Shield

01365900

Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles

Distance "A"

Extension

Part No.

Minimum

Maximum

6" (15 cm)

10" (26 cm)

14" (37 cm)

Width

2" (4 cm)

6" (15 cm)

10" (26 cm)

01370408

01370412

01370416

8" (20 cm)

12" (30 cm)

16" (40 cm)

Description

Part Number

Reflector Side Extension

01370412

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SECTION 7: OPTIONAL HEATER ACCESSORIES

7.6 Protective Grille Installation

Step 7.6.1 Silicone Cap Installation

Silicone Cap

Description

Grille Section

Grille End Cap

Silicone Cap

Part Number

08050001

08050002

Grille

Finger

91915951-6P

Step 7.6.2 Grille End Cap Installation

Grille

Grille End Cap

Bend up 90°.

Pull outward.

Step 7.6.3 Grille Installation

Reflector

40"

(101 cm)

Final Grille

Section

Grille

End Cap

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 8: VENTING

Vent pipe must be sloped downward away from the

burner 1/2'' (1 cm) for every 20' (6 m).

WARNING

The heater may be individually vented or common

vented. When venting horizontally, a maximum of two

heaters can be commonly vented. See Page 36,

Section 8.9. When venting vertically, a maximum of

four heaters can be commonly vented. See Page 3 7 ,

Section 8.1 0.

The heater may also be installed unvented in certain

circumstances according to building ventilation

codes. Refer to the above codes and Page 34,

Section 8.2 for further information. Unvented

operation also requires compliance with the

clearances to combustibles given on Page 8, Figure

12.

Carbon Monoxide Hazard

Heaters installed unvented must be interlocked

with sufficient building exhaust.

Heaters must be installed according to the

installation manual.

The bottom of the vent or air intake terminal shall not

Failure to follow these instructions can result

in death or injury.

be located less than 1' (.3 m) above grade level.

The vent shall not terminate less than 7' (2.1 m)

above grade where located adjacent to public

walkways.

WARNING

Vent terminal must be installed at a height sufficient

to prevent blockage by snow and building materials

protected from degradation by flue gasses.

Secure all joints with #8 x 3/8 sheet metal screws.

Seal all joints with high temperature silicone sealant.

Vent terminal must be beyond any combustible

overhang.

Cut/Pinch Hazard

Wear protective gear during installation,

operation and service.

8.1.1 United States Requirements

Vent must terminate at least 3' (.9 m) above any

forced air inlet located within 10' (3.1 m).

Edges are sharp.

Vent must terminate at least 4' (1.2 m) below, 4'

(1.2 m) horizontally from, or 1' (.3 m) above any door,

operable window, or gravity air inlet into any building.

Failure to follow these instructions can result

in injury.

8.1.2 Canadian Requirements

8.1 General Venting Requirements

The vent shall not terminate within 6' (1.8 m) of a

mechanical air supply inlet to any building.

This heater must be vented in accordance with the

rules contained in this manual and with the following

national codes and any state, provincial or local

codes which may apply:

The vent shall not terminate within 3' (.9 m) of a

window or door that can be opened in any building,

any non-mechanical air supply inlet to any building,

or of the combustion air inlet of any other appliance.

United States: Refer to National Fuel Gas Code

NFPA 54/ANSI Z223.1 - latest revision.

8.2 Unvented Operation

Canada: Refer to Natural Gas and Propane

Sufficient ventilation must be provided in the amount

of 4 cfm per 1000 Btu/h firing rate (United States); 3

cfm per 1000 Btu/h firing rate (Canada).

Installation Code CSA B149.1 - latest revision.

Exhaust end of heater will accept a 4' (10 cm) vent

pipe using the vent adapter (P/N 90502700). To

prevent leakage of condensation, install the vent

adapter with the seam on top and seal the joint using

a high temperature silicone sealant.

Use of optional outside combustion air is not

recommended with unvented heaters.

If exhaust fans are used to supply ventilation air, an

interlock switch must be used to prevent the heater

from coming on when the fans are off. This may be

done using a pressure switch.

Any portion of vent pipe passing through a

combustible wall must have an approved thimble

to conform with the above listed codes.

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SECTION8:VENTING

8.3 Horizontal Venting

FIGURE 22: Tube Termination

In noncombustible walls only, vent terminal

(P/N 02537801-1P) may be used.

For 4'' (10 cm) vents in either combustible or

noncombustible walls, use Tjernlund VH1-4 (P/N

90502100) or equivalent insulated vent terminal.

Follow the manufacturer's instructions for proper

installation.

For 6'' (15 cm) common vents in either combustible

or noncombustible walls, use Tjernlund VH1-6 (P/N

90502101) or equivalent insulated vent terminal.

Follow the manufacturer's instructions for proper

installation.

8.6 Length Requirements

The maximum vent length allowed is 45' (13.7 m).

The maximum outside air supply duct length allowed

is 45' (13.7 m).

The total vent length, plus outside air duct length,

plus any extensions to minimum heat exchanger

lengths, cannot exceed 65' (19.8 m).

8.4 Vertical Venting

For 4'' (10 cm), an approved vent cap

(P/N 90502300) must be used.

For 6'' (15 cm) common vent, an approved vent cap

(P/N 90502302) must be used.

Vent length should be limited to less than 20' (6 m). If

using vent lengths greater than 20' (6 m),

condensation will form in the vent pipe. Insulation

and additional sealing measures (high temperature

silicone at all seams) are required. Optional heat

exchanger beyond minimum lengths is considered as

vent length for length determination.

For common vertical venting of more than two

heaters, See Page 3 7 , S ection 8.1 0.

A vent shall not extend less than 2' (.6m) above the

highest point where it passes through a flat roof of a

building.

Subtract 15' (4.6 m) of maximum allowed vent or duct

length per vent elbow if more than two are used.

8.5 Unvented Operation Tube Termination

Turndown type vent terminal with a screen must be

installed at the exhaust end of the tube. Vent terminal

design shall not incorporate backdraft flap.

8.7 Horizontal Ventilation 4" (10 cm) Pipe

SIDE VIEW

Combustible or

Non-Combustible Wall

Non-Combustible Wall Only

Vent Adapter

18" (46 cm)

Min.

4" (10 cm)

Single Wall Pipe

Vent Terminal

4" (10 cm) Single Wall Pipe

Vent Terminal

Description

Vent Terminal (Comb. Wall)

Vent Terminal

Part Number

90502100

02537801-XX

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

8.8 Vertical Ventilation 4" (10 cm) Pipe

Description

Part Number

Vent Cap 4" (10 cm)

90502300

Step 8.9 Common Sidewall Venting

TOP VIEW

Vent Terminal

Tjernlund VH1-6 or Equivalent

Outside Wall

Sweeping 'T'

Connection

6" (15 cm) Single Wall Pipe

Vent Adapter

4" (10 cm) Single Wall Pipe

Vent Terminal

Tjernlund VH1-6 or Equivalent

Outside Wall

6" (15 cm) Single Wall Pipe

Sweeping 'Y'

Connection

4" (10 cm) Single Wall Pipe

Description

Vent Terminal 6" (15 cm)

Part Number

90502101

Vent Adapter

Requirements:

• Maximum of two heaters can be commonly

vented through a side wall.

• Heaters must be of the same BTU output.

• Heaters must be controlled by a common

thermostat.

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SECTION8:VENTING

8.10 Common Vertical Venting

Requirements:

• Maximum of four heaters can be commonly vented

through the roof.

• Heaters must be of the same BTU output.

• Heaters must be controlled by a common

thermostat.

• Connections to a common stack must be posi-

tioned to avoid direct opposition between streams

of combustion gases.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

8.11 Outside Combustion Air Supply

mended with unvented heaters.

IMPORTANT: If the building has a slight negative

pressure or corrosive contaminants, such as haloge-

nated hydrocarbons, are present in the air, an outside

combustion air supply to the heater is required. Seal

all combustion air pipe joints.

The air supply duct may have to be insulated to pre-

vent condensation on the outer surface. The outside

air terminal must not be more than 1' (31 cm) above

the vent terminal.

8.11.1 Length Requirements

Use of optional outside combustion air is not recom-

Follow the constraints listed on Page 35, Section 8.6.

8.11.2 Vertical Outside Air Supply for Single Heater Installation

Description

Part Number

Vent Cap 4" (10 cm)

90502300

8.11.3 Horizontal Outside Air Supply for Single Heater Installation

4" (10 cm)

Single Wall Pipe

Vent Cap

Flex Hose

(Recommended)

Burner

Band Clamp

(Recommended)

Description

Part Number

Vent Cap 4" (10 cm)

90502300

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SECTION8:VENTING

8.11.4 Vertical Outside Air Supply for Double Heater Installation

Vent Cap

Roof

6" (15 cm) Single Wall Pipe

Sweeping 'T'

Connection

Flex Hose

(Recommended)

Burner

4" (10 cm)

Single Wall Pipe

Flex Hose

(Recommended)

Band Clamp

(Recommended)

Description

Part Number

Vent Cap 6" (15 cm)

90502302

Requirements:

• Heaters must be controlled by a common thermostat.

8.11.5 Horizontal Outside Air Supply for Double Heater Installation

6" (15 cm) Single Wall Pipe

Flex Hose

(Recommended)

Vent Cap

Burner

Sweeping 'Y'

Connection

4" (10 cm) Single Wall Pipe

(Seal All Joints)

Burner

Band Clamp

(Recommended)

Description

Vent Cap 6" (15 cm)

Part Number

90502302

Requirements:

• Heaters must be controlled by a common thermostat.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 9: GAS PIPING

There is an expansion of the tube with each firing

cycle. This will cause the burner to move with respect

to the gas line. This can cause a gas leak resulting in

an unsafe condition if the gas connection is not made

in strict accordance with Figure 23.

WARNING

Meter and service must be large enough to handle all

the burners 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 supplier

will usually help in planning the gas piping.

Fire Hazard

Tighten gas hose fittings to connect gas

supply according to Figure 23.

Gas lines must meet applicable codes:

United States: The Flexible Stainless Steel Gas

Hose (US models) supplied with the heater is certi-

fied per the Standard for Connectors for Gas Appli-

ances, ANSI Z21.24/CSA 6.10 - latest revision.

Canada: The Rubber Type 1 Gas Hose (Canadian

models) optional with the heater is certified as being

in compliance with the Standard for Elastomeric

Composite Hose and Hose Couplings for Conducting

Propane and Natural Gas, CAN/CGA 8.1 - Latest

revision.

Gas hose can crack when twisted.

Gas hose moves during normal operation.

Use only 36" (91 cm) long connector of 1/2" or

3/4" nominal ID.

Connector supplied with heater for U.S.

models (not with Canadian models).

Failure to follow these instructions can result

in death, injury or property damage.

• Check the pipe and tubing ends for leaks

before placing heating equipment into ser-

vice. When checking for gas leaks, use a soap

and water solution; never use an open flame.

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.

Install the gas hose as shown in Figure 23. The gas

hose accommodates expansion of the heating

system and allows for easy installation and service of

the burner. Before connecting the burners to the

supply system, verify that all high pressure testing of

the gas piping has been completed.

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SECTION 9: GAS PIPING

FIGURE 23: Gas Connection with Flexible Gas Hose

CORRECT POSITIONS

CAUTION

Product Damage Hazard

Shut-Off Valve (included with gas hose) must

Hold gas nipple securely with pipe wrench

when attaching gas hose.

be parallel to burner gas inlet. The 3" (8 cm)

displacement shown is for the cold condition.

This displacement may reduce when the

system is fired.

Failure to follow these instructions can result

in product damage.

Vertical

(as shown left)

3" (8 cm)

max. displacement

12"

(30 cm)

45°

Side View

Alternate

positions

okay

Horizontal

Flexible Gas Hose

36" (91 cm) length

End View

Heater Movement

INCORRECT POSITIONS (WRONG INSTALLATION)

Heater Movement

Description

Part Number

91412200

91412204

91412206

91412207

1/2" Flexible Stainless Steel Gas Hose (US Models)

3/4" Flexible Stainless Steel Gas Hose (US Models)

1/2" Rubber Type 1 Gas Hose (Canadian Models)

3/4" Rubber Type 1 Gas Hose (Canadian Models)

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 10: WIRING

Management System. Section 1 0 .1 below illustrates

the connection for heaters controlled by a line voltage

thermostat. NOTE: In order to use line voltage ther-

mostats, the low voltage terminal located at the back

of each burner must be connected as shown in the

detail. For a single heater on a low voltage thermo-

stat, See Section 1 0 .2 below. To control multiple

heaters on one low voltage thermostat, See Page 43,

Section 1 0 .3. NOTE: In order to control multiple heat-

ers on one low voltage thermostat, the low voltage

terminals on each heater must be connected as

shown in detail. Heater must be grounded in accor-

dance with applicable codes: United States: refer to

National Electrical Code^®NFPA 70 - latest revision

Canada: refer to Canadian Electrical Code, CSA

C22.1 Part I - latest revision.If any of the original

internal wiring must be replaced, it must be replaced

with wiring materials having a temperature rating of at

least 105° C and 600 V.

DANGER

Electrical Shock Hazard

Disconnect electric before service.

Heater must be properly grounded.

Failure to follow these instructions can result

in death or electrical shock.

Heaters can be controlled using several methods.

Normally thermostats are used to control the heaters

but they can also be controlled by an Energy

10.1 Line Voltage Thermostat Wiring

Line Voltage

Thermostat

Gnd.

120 V-60 Hz

Supply Circuit

Low Voltage

Terminal Detail

On All Burners

Gnd.

10.2 Low Voltage Thermostat with One Burner

120 V-60 Hz

Supply Circuit

Gnd.

Low Voltage

Thermostat

Low Voltage

Terminal Detail

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SECTION10:WIRING

10.3 Low Voltage Thermostat Wiring with Multiple Burners

Transformer Relay

FRONT VIEW

BACK VIEW

Low Voltage Thermostat

COIL

Black

Purple

Black

Burner 1

Burner 2

White

Red

Low Voltage

Terminal Detail

on all Burners

120V-60 Hz

supply circuit

Gnd.

Burner 3

Burner 4

Gnd.

When using 1-2 burners, use SPST

Transformer Relay.

When using 3-4 burners, use SPDT

Gnd.

Red/Yellow

Transformer Relay.

10.4 Internal Wiring

SMART

VALVE

120V-60Hz

supply circuit

TRANSFORMER

WHITE

N.O.

YELLOW

ORANGE

BLUE

PURPLE

TO THERMOSTAT

WHITE

BLACK

YELLOW

COM

Gnd.

GREEN

PRESSURE

SWITCH

N.O.

COM

BLACK

DOOR

SWITCH

BLACK

WHITE

BLACK

WHITE

GREY

TERMINAL

BUSHING

IGNITER

FLAME

MOTOR/BLOWER

SENSOR

GREEN

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

10.5 Ladder Diagram

TRANSFORMER

WHITE

BLACK

BLUE

ORANGE

VALVE

THERMOSTAT

WHITE

PRESSURE

SWITCH

YELLOW

PURPLE

HOT SURFACE IGNITER

WHITE

BLACK

GREY

FLAME

SENSOR

DOOR

SWITCH

MOTOR

WHITE

BLACK

10.6 Electrical Connection to the Burner

Electrical Cord or

Flexible Conduit

BX or Romex Connector

Burner

Ground

Connect wires together

with suitable approved

wire connectors.

Junction Box

Green to Ground

White to L2

Black

White

Green

Black to L1

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SECTION 11: OPERATION AND MAINTENANCE

WARNING

DANGER

Electrical Shock Hazard

Explosion Hazard

Burn Hazard

Cut/Pinch Hazard

Turn off gas supply to Allow heater to cool

heater before service. before service.

Wear protective gear

during installation,

operation and service.

Disconnect electric

before service.

Heater must be

connected to a properly

grounded electrical

source.

Tubing may still be hot

after operation.

Edges are sharp.

Failure to follow these instructions can result in death, electric shock, injury or property damage.

This heater is equipped with a hot-surface ignition

system.

6. If the flame extinguishes during operation, the

igniter module will provide multiple trial

sequences described in step 5. If ignition is not

re-established, the module/SmartValve^®II will

lockout for one hour or until reset.

11.1 Sequence of Operation

1. Turn the thermostat up. When the thermostat

calls for heat, the SmartValve^®II will energize.

After a short period, power is supplied to the

blower motor.

7. After lockout, reset by turning down thermostat

for five seconds, and then raising it again to

desired temperature, or by disconnecting power

and then reconnecting.

2. When the motor approaches nominal running

RPM, the pressure switch closes and signals

the ignition module/SmartValve^®II.

11.2 To Shut Off Heater

3. The ignition module/SmartValve^®II then ener-

gizes the hot-surface igniter for a timed warm-up

period (approximately 45 to 60 seconds). After

the warm-up period, the gas valve is energized.

Set thermostat to lowest setting.

Turn OFF electric power to heater.

Turn OFF manual gas valve in the heater supply line.

11.3 To Start Heater

4. If a flame is detected, the gas valve remains

open and the igniter is de-energized. When the

call for heat is satisfied and the system control

mechanism de-energizes the burner line voltage

supply, the gas is turned off.

Turn gas valve and electric power OFF and wait five

minutes for unburned gases to vent from heater.

Turn ON main gas valve.

Turn ON electric power.

Set thermostat to desired temperature. Burner

should light automatically.

5. If no flame is detected by the flame sensing rod,

the igniter is de-energized and the module/

SmartValve^®II will close and a purge period

begins. After the purge, the module/SmartValve^®

II acts to power the igniter for a second warm-up

period and a second trial for ignition period. If

flame is still not established, a third purge,

warm-up, and trial cycle begins. After four trials,

the module/SmartValve^®II will lockout for one

hour or until reset.

11.4 Pre-Season Maintenance and Annual

Inspection

To ensure your safety and years of trouble-free oper-

ation of the heating system, service and annual

inspections must be done by a contractor qualified in

the installation and service of gas-fired heating

equipment.

Turn off gas and electric supplies before performing

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

service or maintenance. Allow heater to cool before

servicing.

Installation Code and Annual Inspections:

All installation and service of ROBERTS GORDON^®

equipment must be performed by a contractor

qualified in the installation and service of equipment

sold and supplied by Roberts-Gordon LLC and

conform to all requirements set forth in the

ROBERTS GORDON^®manuals and all applicable

governmental authorities pertaining to the

installation, service, operation and labeling of the

equipment.

Before every heating season, a contractor qualified in

the installation and service of gas-fired heating

equipment must perform a thorough safety inspec-

tion of the heater.

For best performance, the gas, electrical, thermostat

connections, tubing, venting, suspensions and over-

all heater condition should be thoroughly inspected.

To help facilitate optimum performance and safety,

Roberts-Gordon LLC recommends that a qualified

contractor conduct, at a minimum, annual

inspections of your ROBERTS GORDON^®

equipment and perform service where necessary,

using only replacement parts sold and supplied by

Roberts-Gordon LLC

NOTE: Gas flow and burner ignition are among the

first things that should be inspected.

Please see Page 46, Section 1 1 .5 for suggested

items to inspect.

11.5 Maintenance Checklist

The Vicinity of the Heater Do not store or use flammable objects, liquids or vapors near the heater.

Immediately remove these items if they are present.

See Page 5, Section 3.

Vehicles and Other

Objects

Maintain the clearances to combustibles.

Do not hang anything from, or place anything on, the heater.

Make sure nothing is lodged underneath the reflector, in between the tubes or

in the decorative or protective grilles (included with select models).

Immediately remove objects in violation of the clearances to combustibles.

See Page 5, Section 3.

Reflector

Vent Pipe

Support reflector with reflector hanger and support strap.

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.

Make sure reflectors are correctly overlapped. See Page 22, Section 6.5.1.

Clean outside surface with a damp cloth.

Venting must be intact. Using a flashlight, look for obstructions, cracks on the

pipe, gaps in the sealed areas or corrosion.

The area must be free of dirt and dust. Clean as required.

Remove any carbon deposits or scale using a wire brush.

See Page 34, Section 8.

Outside Air Inlet

Tubes

Inlet must be intact. Look for obstructions, cracks on the pipe, gaps in the

sealed areas or corrosion.

The area must be free of dirt and dust. Clean and reinstall as required.

Make sure there are no cracks.

Make sure tubes are connected and suspended securely.

See Page 13, Section 6.

Make sure there is no sagging, bending or distortion.

Clean or replace as required.

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SECTION 11: OPERATION AND MAINTENANCE

Gas Line

Check for gas leaks. See Page 40, Section 9.

Burner Observation

Window

Make sure it is clean and free of cracks or holes.

Clean and replace as required.

Blower Scroll, Wheel and

Motor

Compressed air or a vacuum cleaner may be used to clean dust and dirt.

Burner Cup and Orifice

Clear of obstructions (even spider webs will cause problems).

Carefully remove any dust and debris from the burner.

Replace if cracked or broken.

Hot-Surface Igniter

Thermostat

There should be no exposed wire or damage to the thermostat.

See Page 42, Section 1 0.

Suspension Points

Make sure the heater is hanging securely. Look for signs of wear on the chain

or ceiling. See Page 14, Figure 14.

Decorative and Protective The grille must be securely attached.

Grille (optional)

Check that the side reflector extensions are installed correctly and secured in

place if necessary. (Decorative grille only.)

See Page 31, Section 7 .5 and Page 33, Section 7 .6.

Make sure shield is installed correctly and secured in place if necessary.

(Decorative grille only.) See Page 32, Section 7 .5.2.

Lower Clearance Shield

(optional)

The lower shield must be securely attached. Inspect shield support straps

and lower clearance shield anchor points. See Page 31, Section 7 .4.

Make sure shield is installed correctly and secured in place if necessary.

See Page 31, Section 7 .4.

Wall Tag

If wall tag is present, make sure it is legible and accurate. Please contact

Roberts-Gordon LLC or your ROBERTS GORDON^®independent distributor,

if you need a wall tag. See Page 4, Section 2.1.

Safety Labels

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 2, Figure 1 through Page 3, Figure 2.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 12: TROUBLESHOOTING

DANGER

Electrical Shock Hazard

Disconnect electric before service.

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

objects, liquids and

vapors the minimum

required clearances to

combustibles away

from heater.

Turn off gas supply to Allow heater to cool

heater before service. before service.

Wear protective gear

during installation,

operation and service.

Tubing may still be hot

after operation.

Edges are sharp.

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.

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SECTION12:TROUBLESHOOTING

12.1 Honeywell SmartValve^®II Troubleshooting

This heater is supplied with the Honeywell Smart-

Valve^®II control system. This system is equipped with

a diagnostic function that will assist in performing

troubleshooting. The LED (Light Emitting Diode) indi-

cator at the top of the SmartValve^®II control will flash

in various patterns to indicate status. The LED status

indication chart provided below gives a summary of

possible faults.

WARNING

Electrical Shock Hazard

LED Status Indicates

Do not disconnect ground leads inside heater.

Off

No power to the control

Do not interchange grounded and ungrounded

leads on transformer or ignition module.

Bright-Dim

Normal Operation.This indication

shows whenever the system is pow-

ered, unless some abnormal event

has occurred.

Failure to follow these instructions can result

in death or electrical shock.

Page 52, Section 12.3 will provide the information

needed to test the manifold gas pressure setting.

Page 50, Section 12.2 will guide you through several

troubleshooting steps to determine possible prob-

lems with the systems.

2 Flashes

Pressure switch remains closed lon-

ger than 30 seconds after a call for

heat begins (pressure switch stuck

closed). The SmartValve^®II checks

the status of the pressure switch con-

tacts and must see a change in the

contact with every firing cycle. Placing

a jumper at the switch out of

sequence will result in a fault, with the

LED indicator flashing 2 times.

3 Flashes

Pressure switch remains open longer

than 30 seconds after combustion air

blower is energized. Check for correct

blower operation, blower intake

obstructions, pressure switch tubing

and wiring.

4 Flashes

5 Flashes

6 Flashes

Limit string open, 2" white jumper wire

on valve is loose.

Flame signal sensed out of proper

sequence.

System Lockout. Flame sensing cir-

cuit is not functioning properly. Per-

form the checks following the "Does

the burner stay lit?" bubble in the trou-

bleshooting flow chart on Page 50,

Section 12.2.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

12.2 Troubleshooting Flow Chart

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SECTION12:TROUBLESHOOTING

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

12.3 Manifold Gas Pressure Setting

Orifice

Top View of Heater

Manometer

10.5"

3.5"

Natural

Propane

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SECTION 13: REPLACEMENT PARTS

WARNING

DANGER

Electrical Shock Hazard

Explosion Hazard

Carbon Monoxide Hazard

Fire Hazard

Use only genuine ROBERTS GORDON^®replacement parts per this installation, operation and

service manual.

Failure to follow these instructions can result in death, electric shock, injury or property damage.

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Blower Inlet Gasket

Motor and Blower Assembly

Door Switch

Burner Cup

Assembly

Orifice

Mica Window

Assembly

Air Adapter

Collar

Gas Valve

Hot Surface

Igniter

Pressure Switch

SmartValve II

Flame Sensor

Jumper Wire

Tube Gasket

Thermostat

Connection

Transformer

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SECTION 13: REPLACEMENT PARTS

Description

Part Number

90068300

90068302

02568200

03050900

90708600-P

91911700

90436800

03020100

90436603K

02553203

90439300

90436900K

91317900

03090900

Gas Valve (Natural)

Gas Valve (LP)

Tube Gasket

Blower Inlet Gasket

Motor and Blower Assembly

Air Adapter Collar

Door Switch

Burner Cup Assembly

Hot Surface Igniter

Mica Window Assembly

Flame Sensor

Transformer

Thermostat Connection

Jumper Wire

Pressure Switch:

(175)

(100)

(80,150)

(40, 60, 125)

90439802K

90439803K

90439810K

90439805K

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 14: GENERAL SPECIFICATIONS

14.1 Material Specifications

14.1.1 Reflectors

14.3 Suspension Specifications

Hang heater with materials with a minimum working

load of 75 lbs (33 kg). See Page 14, Figure 14.

.024 Aluminum

14.4 Controls Specifications

(optional .024 Stainless Steel Type 304)

Time switches, thermostats, etc. can be wired into

the electrical supply. External controls supplied as an

optional extra.

14.2 Heater Specifications

14.2.1 Ignition

Honeywell^®SmartValve^®II combines gas valve and

hot surface electronic ignition control. Fully auto-

matic, four-try, 100% shut-off, prepurge, auto reset,

LED indicator status.

General Specifications for the heaters are as follows:

End View

Side View

Minimum Length "A"

Reflector

13.5"

(34 cm)

9.5"

(24 cm)

Burner Tube

Turbulator

(Select Models)

17.5"

(44 cm)

Recommended

Minimum Mounting Height*

Heat Input Rate

Length “A”

Model

CTH2-40

CTH2-60

CTH2-80

CTH2-100

CTH2-125

CTH2-150

CTH2-175

(Btu/h) x (1000)

Minimum

10' (3m)

Space

Spot

8'-10' (2.4 - 3m)

10'-12' (3 - 3.6m)

12'-15' (3.6 - 4.5m)

15'-20' (4.5 - 6m)

20'-25' (6 - 7.6m)

25' (7.6m)

8' (2.3m)

9' (2.7m)'

11' (3.3m)

12' (3.7m)

15' (4.6m)

20' (6.1m)

23' (7m)

20' (6m)

100

125

150

175

30' (9m)

40' (12m)

50' (15m)

60' (15m)

*See Page 5, Section 3 for clearances to combustibles.

GAS PRESSURE AT MANIFOLD:

GAS INLET PRESSURE:

Natural Gas:

3.5" wc

LP Gas:

PIPE CONNECTION:

1/2" NPT (for 40, 60, 80, 100, 125)

3/4" NPT (for 150 & 175)

DIMENSIONS:

Vent Connection Size:

Outside Air Connection Size: 4" (10 cm)

Refer to figure above for dimensional information.

10.5" wc

for 40,60,80,100,125,150

for 175

4.6" wc Minimum

5.0" wc Minimum

14.0" wc Maximum

11.0" wc Minimum

14.0" wc Maximum

LP Gas:

4" (10 cm)

ELECTRICAL RATING (ALL MODELS):

120 V - 60 Hz., 1.0 A (run) 5.0 A (Start)

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SECTION 15: THE ROBERTS GORDON^®VANTAGE^®II WARRANTY

Roberts-Gordon is not permitted to inspect the damaged

controller and/or component parts.

ROBERTS-GORDON WILL PAY FOR:

Within 36 months from date of purchase by buyer or 42

months from date of shipment by Roberts-Gordon LLC

(whichever occurs first), replacement parts will be provided

free of charge for any part of the product which fails due to

a manufacturing or material defect.

READ YOUR INSTALLATION, OPERATION AND

SERVICE MANUAL

If you have questions about your controller, contact your

installing professional. Should you need Replacement

Parts or have additional questions, call or write:

Roberts-Gordon LLC will require the part in question to be

returned to the factory. Roberts-Gordon LLC will, at its sole

discretion, repair or replace after determining the nature of

the defect and disposition of part in question.

ROBERTS GORDON^®Replacement Parts are warranted

for a period of 12 months from date of shipment from

Roberts-Gordon LLC or the remaining ROBERTS

GORDON^®VANTAGE^®II warranty.

Roberts-Gordon LLC

1250 William Street

P. O. B ox 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

ROBERTS-GORDON WILL NOT PAY FOR:

Service trips, service calls and labor charges.

Shipment of replacement parts.

www.radiantheaters.com

Claims where the total price of the goods have not

been paid.

Damage due to:

• Improper installation, operation or maintenance.

Roberts-Gordon LLC's liability, and your exclusive

remedy, under this warranty or any implied warranty

(including the implied warranties of merchantability

and fitness for a particular purpose) is limited to

providing replacement parts during the term of this

warranty. Some jurisdictions do not allow limitations on

how long an implied warranty lasts, so this limitation may

not apply to you. There are no rights, warranties or

conditions, expressed or implied, statutory or otherwise,

other than those contained in this warranty.

• Misuse, abuse, neglect, or modification of the

ROBERTS GORDON^®VANTAGE^®II in any way.

• Use of the ROBERTS GORDON^®VANTAGE^®II for

other than its intended

purpose.

• Incorrect gas or electrical supply, accident, fire, floods,

acts of God, war, terrorism, or other casualty.

• Improper service, use of replacement parts or acces-

sories not specified by Roberts-Gordon.

• Failure to install or maintain the ROBERTS GORDON^®

VANTAGE^®II as directed in the Installation, Operation

and Service manual.

• Relocation of the ROBERTS GORDON^®VANTAGE^®II

after initial installation

• The use of the ROBERTS GORDON^®VANTAGE^®II in

Roberts-Gordon LLC shall in no event be responsible

for incidental or consequential damages or incur

liability for damages in excess of the amount paid by

you for the ROBERTS GORDON^®VANTAGE^®II. Some

jurisdictions do not allow the exclusion or limitation of

incidental or consequential damages, so this limitation or

exclusion may not apply to you. This warranty gives you

specific legal rights, and you may also have other rights

which vary from jurisdiction to jurisdiction.

a corrosive atmosphere containing contaminants.

• The use of the ROBERTS GORDON^®VANTAGE^®II in

the vicinity of a combustible or explosive material.

• Any defect in the ROBERTS GORDON^®VANTAGE^®II

arising from a drawing, design, or specification sup-

plied by or on behalf of the consumer.

Roberts-Gordon shall not be responsible for failure to

perform under the terms of this warranty if caused by

circumstances out of its control, including but not limited to

war, fire, flood, strike, government or court orders, acts of

God, terrorism, unavailability of supplies, parts or power.

No person is authorized to assume for Roberts-Gordon

any other warranty, obligation or liability.

• Damage incurred during shipment. Claim must be filed

with carrier.

LIMITATIONS ON AUTHORITY OF

REPRESENTATIVES:

No representative of Roberts-Gordon LLC, other than an

Executive Officer, has authority to change or extend these

provisions. Changes or extensions shall be binding only if

confirmed in writing by Roberts-Gordon LLC's duly

authorized Executive Officer.

WARRANTY IS VOID IF:

The ROBERTS GORDON^®VANTAGE^®II is not installed

by a contractor qualified in the installation and service of

gas fired heating equipment.

You cannot prove original purchase date and required

annual maintenance history.

The data plate and/or serial number are removed,

defaced, modified or altered in any way.

The ownership of the ROBERTS GORDON^®VANTAGE^®II

is moved or transferred. This warranty is nontransferable.

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