Roberts Gorden Vantage CTH2V-60, Vantage CTH2V-80, Vantage CTH2V-150, Vantage CTH2V-40, Vantage CTH2V-175 Installation, Operation & Service Manual

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.

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 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.

Model CTH2V

Gas-Fired, Low Intensity

Unitary Heater

Installation, Operation &

Service Manual

CTH2V-40
CTH2V-60
CTH2V-80

CTH2V-100

© 2017 Roberts-Gordon LLC

CTH2V-125
CTH2V-150
CTH2V-175

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 service technician with necessary information.

Roberts-Gordon LLC

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

www.robertsgordon.com

P/N 131200NA Rev B 11/17

© 2017

Roberts-Gordon LLC

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

TABLE OF CONTENTS

SECTION 1: Heater Safety...................................................... 1

1.1 Manpower Requirements .............................................1

1.2 Safety Labels and Their Placement ............................. 1

1.3 California Proposition 65 ..............................................1

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

2.1 Wall Tag....................................................................... 4

2.2 Corrosive Chemicals.................................................... 4

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

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

3.1 Required Clearances to Combustibles.........................5

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

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

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

4.3 Public Garages ............................................................9

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

4.5 Venting.........................................................................9

4.6 High Altitude ................................................................ 9

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

5.1 Standard Parts List .................................................... 12

SECTION 6: Heater Installation............................................ 15

SECTION 7: Optional Heater Accessories..........................26

7. 1 U - Tube Configuration.................................................. 26

7.2 Elbow Package Configuration.....................................30

7.3 Reflector Side Extension ............................................32

7. 4 L o wer Clearance Shield Installation ........................... 33

7. 5 Two-Foot Decorative Grille Installation .......................33

7.6 Protective Grille Installation ........................................ 35

SECTION 8: Venting.............................................................. 36

8.1 General Venting Requirements..................................36

8.2 Unvented Operation...................................................36

8.3 Horizontal Venting......................................................37

8.4 Vertical Venting..........................................................37

8.5 Unvented Operation Tube Termination ...................... 37

8.6 Length Requirements ................................................37

8.7 Horizontal Ventilation 4" (10 cm) Pipe........................37

8.8 Vertical Ventilation 4" (10 cm) Pipe ............................38

8.10 Common Vertical Venting ........................................39

8.11 Outside Combustion Air Supply ...............................40

SECTION 9: Gas Piping........................................................42

SECTION 10: Wiring ..............................................................44

10.1 Line Voltage Thermostat Wiring ...............................44

10.2 Low Voltage Thermostat

10.3 Low Voltage Thermostat Wiring with

Multiple Burners....................................................... 45

10.4 Internal Wiring..........................................................45

with One Burner ............... 44

10.5 Ladder Diagram ....................................................... 46

10.6 Electrical Connection to the Burner ......................... 46

SECTION 11: Operation and Maintenance.......................... 47

11.1 S e q uence of Operation ............................................ 47

11.2 To Shut Off Heater.................................................... 47

11.3 To Start Heater ......................................................... 47

11.4 Pre-Season Maintenance and Annual Inspection..... 47

11.5 Maintenance Checklist ............................................. 48

SECTION 12: Troubleshooting............................................. 50

12.1 Troubleshooting Flow Chart..................................... 51

12.2 Manifold Gas Pressure Setting ................................ 53

SECTION 13: Replacement Parts ........................................ 54

SECTION 14: General Specifications .................................. 56

14.1 Material Specifications............................................. 56

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

14.3 Suspension Specifications....................................... 56

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

SECTION 15: The ROBERTS GORDON

CTH2V Warranty............................................. 57

®

VANTAGE

®

Prin ted in U.S.A.

TABLE OF FIGURES

Figure 1: Top and Bottom Panel Label Placement ....................2

Figure 2: Side and Back Panel Label Placement...................... 3

Figure 13: Major Component Descriptions -

Standard Reflector ................................................. 10

Figure 14: Major Component Descriptions -

High Efficiency Reflector ........................................ 11

Figure 15: Critical Hanger Placement ..................................... 16

Figure 16: Linear Heater Assembly Overview ........................ 17

Figure 17: Linear Heater Layout Overview.............................. 18

Figure 18: Linear Heater Layout Overview (Continued) .......... 19

Figure 19: U-Tube Heater Assembly Overview ......................27

Figure 20: U-Tube Heater Layout Overview ............................28

Figure 21: U-Tube Heater Layout Overview (Continued) ........ 29

Figure 22: Reflector Joint Detail .............................................. 31

Figure 23: T

Figure 24: Gas Connection with Flexible Gas Hose ...............43

Figure 25: Burner Exploded View ........................................... 55

ube Termination ...................................................37

SECTION 1: HEATER S AFETY

SECTION 1: HEATER SAFETY

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

warnings in these sections.
Installation, service and annual inspection of heater
must be done by a contractor qualified in the installa­tion and service of gas-fired heating equipment.

Read this manual carefully before installation, opera­tion or service of this equipment.

This heater is designed for heating nonresidential
indoor spaces. Do not install in residential spaces.
This heater is not certified to meet the requirements
of NFPA30A-2012 Section 7.6.6. (maximum tube
temperature of 750 °F (399 °C)). Do not install this
heater in facilities where compressed natural gas
(CNG) or liquid natural gas (LNG) are present. 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.
Protective gear is to be worn d

uring installation,
operation and service in accordance to the
Occupational Safety and Hazard Administration
(OSHA). Gear must be in accordance to NFPA 70E,
latest revision when working with electrical
components. Thin sheet metal parts have sharp
edges. To prevent injury, the use of work gloves is
recommended. The use of gloves will also prevent
the transfer of body oils from the hands to the surface
of the reflector.

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 shou

ld
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.

1.1 Manpower Requirements

To p r event personal injury and damage to the heater,
two persons will be required for installation.

1.2 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 or your ROBERTS

®

GORDON

independent distributor to obtain
replacement signs or labels. See Page 2, Figure 1
through Page 3, Figure 2.

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, corro­sive chemicals or other elements. To order additional
labels, please contact Roberts-Gordon LLC or your
ROBERTS GORDON

®

independent distributor.

1

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Logo Label

Rating Plate Label

Bottom
Panel

Top Panel

Gas Connection Label

Proposition 65 Label

Description Part Number

Logo Label 91013221
Rating Plate Label 91010401
Gas Connection Label 91018122
Proposition 65 Label 91070016
Burner Status Label 91033301

FIGURE 1: Top and Bottom Panel Label Placement

2

FIGURE 2: Side and Back Panel Label Placement

Clearances to Combustibles Label

Control Side Panel

Control Side Panel (Inside)

Wiring Label

Level

droit

Level

droit

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

P/N 91013436 Orig.

Level

droit

Level
droit

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

CTH2V/HEV-40
CTH2V/HEV-60
CTH2V/HEV-80
CTH2V/HEV-100
CTH2V/HEV-125
CTH2V/HEV-150
CTH2V/HEV-175

P/N 91013436 Orig.

P/N 91030310 Rev A

POWER SUPPLY
120V 60 HZ

L1

L2

GAS

VALVE

GRN

BLK

WHT

MOTOR/BLOWER

GRN

BLK

BLK

BLK

BUSHING

TERMINAL

3

1

4

5

TRANSFORMER

GRN

IGNITION
MODULE

YEL

BRN

BLUE

YEL

PURPLE

YEL

WHT

PRESSURE SWITCH

PLUG

3

1

R1

R1

YEL

24V STAT

BY OTHERS

BLUE

BUSHING

TERMINAL

LED

+

ELECTRODE

DOOR

SWITCH

YEL

CR

W

NOTES:

NO TERMINAL BUSHING
ON HARSH ENVIRONMENTS,
THERMOSTAT CONNECTIONS
MADE INTERNAL

SEE NOTE 1

TH
C1
V1
C2
S1
V2
GND

BLK

N.O.

COM

P/N 91030310 Rev A

POWER SUPPLY
120V 60 HZ

L1

L2

GAS

VALVE

GRN

BLK

WHT

MOTOR/BLOWER

GRN

BLK

BLK

BLK

BUSHING

TERMINAL

3

1

4

5

TRANSFORMER

GRN

IGNITION
MODULE

YEL

BRN

BLUE

YEL

PURPLE

YEL

WHT

PRESSURE SWITCH

PLUG

3

1

R1

R1

YEL

24V STAT
BY OTHERS

BLUE

BUSHING

TERMINAL

LED

+

ELECTRODE

DOOR

SWITCH

YEL

CR

W

NOTES:

NO TERMINAL BUSHING
ON HARSH ENVIRONMENTS,
THERMOSTAT CONNECTIONS
MADE INTERNAL

SEE NOTE 1

TH
C1
V1
C2
S1
V2
GND

BLK

N.O.

COM

Description Part Number

Lighting Instruction Plate Label 91029602
Wiring Label 91030310
Clearances to Combustibles Label 91013436
Vent Length Label 91039500
Thermostat Connection Label 91037930

Lighting Instruction Plate Label

Thermostat
Connection
Label

Vent Length Label

Back Panel

THERMOSTAT
CONNECTION

R

CW

CONNEXION DU

THERMOSTAT

(24V AC)

P/N 91037930 Rev A

THERMOSTAT
CONNECTION

R

CW

CONNEXION DU

THERMOSTAT

(24V AC)

P/N 91037930 Rev A

SECTION 1: HEATER S AFETY

3

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 2: INSTALLER RESPONSIBILITY

The installer is responsible for the following:

• To install the heater, as well as the gas and electri­cal supplies, in accordance with applicable specifi­cations and codes. Roberts-Gordon recommends
the installer contact a local Building Inspector or
Fire Marshal for guidance.

• To use the information given in a layout drawing
and in the manual together with the cited codes
and regulations to perform the installation.

• To install the heater in accordance with the
clearances to combustibles.

• To furnish all needed materials not furnished as
standard equipment.

• To plan location of supports.

• To provide access to burners for servicing on all
sides for burner removal.

• To provide the owner with a copy of this installa­tion, operation and service manual.

• To never use heater as support for a ladder or

other access equipment and never hang or sus-
pend anything from heater.

•To ensure there is adequate air circulation around

the heater and to supply air for combu

stion, venti­lation 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.

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 com­bustibles. 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).

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

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.

2.2 Corrosive Chemicals

CAUTION

Product Damage Hazard

Do not use heater in area containing
corrosive chemicals.

Refer to appropriate Material Safety Data
Sheets (MSDS).

Failure to follow these instructions can result
in product damage.

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.

* Halogenated Hydrocarbons are a family of chemical
compounds characterized by the presence of halogen
elements (fluorine, chlorine, bromine, etc.). These com­pounds 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 compo­nents 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.

2.3 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.

4

SECTION 3: CLEARANCES TO COMBUSTIBLES

WARNING

Fire Hazard

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.

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.

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 gasoline or other combustible materials
including flammable objects, liquids, dust or
vapors away from this heater or any other appli-
ance.

• The stated clearances to combustibles represents
a surface temperature of 90° F (32°C) above room
temperature. Building materials with a low heat tol-
erance (such as plastics, vinyl siding, canvas, tri­ply, etc) may be subject to degradation at lower
temperatures. It is the installer’s responsibility to
assure that adjacent materials are protected from
degradation.

• Maintain clearances from heat sensitive
equipment and workstations.

• Maintain clearances from vehicles parked below
the heater.

• Maintain clearances from swinging and overhead
doors, overhead cranes, vehicle lifts, partitions,
storage racks, hoists, building construction, etc.

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.

SECTION 3: CLEARANCES TO COMBUSTIBLES

• 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 com­bustibles. Signs must be posted adjacent to the
heater thermostat. In the absence of a thermostat,
signs must be posted in a conspicuous
location.

• Consult local Fire Marshal, Fire Insurance Carrier
or other authorities for approval of proposed instal­lation when there is a possibility of exposure to
combustible airborne materials or vapors.

• Hang heater in accordance to the minimum sus-
pension requirements

• 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.

on Page 16, Figure 15

.

FIGURE 3: LEVEL REFLECTOR

Model ABCDABCD

CTH2V-40 6 27 53 27 16 69 135 69

CTH2V-60 6 356335168916189

CTH2V-80 6 38 66 38 16 97 168 97

CTH2V-100 6 40 71 40 16 102 181 102

CTH2V-125 6 46 77 46 16 117 196 117

CTH2V-150 6 50 80 50 16 127 204 127

CTH2V-175 8 52 82 52 21 133 209 133

(inches) (centimeters)

5

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

A

C

D

B

A

C

D

B

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: LEVEL SIDE REFLECTOR

Model ABCDABCD

CTH2V-40 6 9 53 44 16 23 135 112

CTH2V-60 6 9 63 47 16 23 161 120

CTH2V-80 6 9 70 54 16 23 178 138

CTH2V-100 6 9 77 59 16 23 196 150

CTH2V-125 6 9 83 65 16 23 211 166

CTH2V-150 6 9 86 69 16 23 219 176

CTH2V-175 8 9 88 73 21 23 224 186

FIGURE 5: TWO SIDE REFLECTORS

Model ABCDABCD

CTH2V-40 6 15 53 15 16 39 135 39

CTH2V-60 6 23 66 23 16 59 168 59

CTH2V-80 6 25 72 25 16 64 183 64

CTH2V-100 6 27 78 27 16 69 199 69

CTH2V-125 6 32 84 32 16 82 214 82

CTH2V-150 6 35 88 35 16 89 224 89

CTH2V-175 8 40 91 40 21 102 232 102

(inches) (centimeters)

(inches) (centimeters)

FIGURE 6: 45° TILT REFLECTOR

(inches) (centimeters)

Model ABCDABCD

CTH2V-40 8 8 51 46 21 21 130 117

CTH2V-60 8 8 60 54 21 21 153 138

CTH2V-80 8 8 66 60 21 21 168 153

CTH2V-100 10 8 74 64 26 21 188 163

CTH2V-125 10 8 78 69 26 21 199 176

CTH2V-150 12 8 84 74 31 21 214 188

CTH2V-175 12 8 85 79 31 21 216 201

6

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

A

C

D

B

B

C

D

A

A

C

D

B

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, LEVEL REFLECTOR

Model ABCDABCD

CTH2V-40

CTH2V-60 6 35 63 30 16 89 161 77

CTH2V-80 6 38 69 37 16 97 176 94

CTH2V-100 6 40 76 39 16 102 194 100

CTH2V-125 6 46 79 43 16 117 201 110

CTH2V-150 6 50 84 47 16 127 214 120

CTH2V-175 8 54 87 51 21 138 221 130

FIGURE 8: U-TUBE, 45°

Model ABCDABCD

SECTION 3: CLEARANCES TO COMBUSTIBLES

(inches) (centimeters)

- UNAPPROVED -

- UNAPPROVED -

(inches) (centimeters)

CTH2V-40

- UNAPPROVED - - UNAPPROVED -

CTH2V-60 8 8 60 42 21 21 153 107

CTH2V-80 8 8 66 46 21 21 168 117

CTH2V-100 8 8 74 52 21 21 188 133

CTH2V-125 8 8 78 61 21 21 199 155

CTH2V-150 8 8 84 66 21 21 214 168

CTH2V-175 8 8 85 70 21 21 216 178

FIGURE 9: U-TUBE, OPPOSITE 45° REFLECTOR

(inches) (centimeters)

Model ABCDABCD

CTH2V-40

CTH2V-60 8 54 60 22 21 138 153 56

CTH2V-80 8 60 66 22 21 153 168 56

CTH2V-100 10 64 74 22 26 163 188 56

CTH2V-125 10 70 78 22 26 178 199 56

CTH2V-150 12 74 84 22 31 188 214 56

CTH2V-175 12 76 85 22 31 194 216 56

- UNAPPROVED - - UNAPPROVED -

7

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

A

C

D

B

A

C

D

B

Radiant Tubes

Vent
Pipes

Unvented

Vented

A

E

F

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 ABCDABCD

CTH2V-40 6 27 53 27 16 69 135 69

CTH2V-60 6 35 63 35 16 89 161 89

CTH2V-80 6 38 66 38 16 97 168 97

CTH2V-100 6 40 71 40 16 102 181 102

CTH2V-125 6 46 77 46 16 117 196 117

CTH2V-150 6 50 80 50 16 127 204 127

CTH2V-175 8 52 82 52 21 133 209 133

FIGURE 11: LOWER CLEARANCE SHIELD*

(inches) (centimeters)

Model ABCDABCD

CTH2V-40 6 34 27 34 16 87 69 87

CTH2V-60 6 39 33 39 16 100 84 100

CTH2V-80 6 40 38 40 16 102 97 102

CTH2V-100 6 50 44 50 16 127 112 127

CTH2V-125 6 54 48 54 16 138 122 138

CTH2V-150 6 55 50 55 16 140 127 140

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

FIGURE 12: VENTING

8

CTH2V-175

- UNAPPROVED - - UNAPPROVED -

(inches) (centimeters)

Model A E F A E F

CTH2V-40 14 18 18 36 46 46

CTH2V-60 14 18 18 36 46 46

CTH2V-80 20 24 18 51 61 46

CTH2V-100202418516146

CTH2V-125 20 24 18 51 61 46

CTH2V-150203018517746

CTH2V-175 20 30 18 51 77 46

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

SECTION 4: NATIONAL STANDARDS AND APPLICABLE C ODES

4.1 Gas Codes

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.

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.

4.2 Aircraft Hangars

Installation in aircraft hangars 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 - latest revision.

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.

• 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.

• 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.

4.3 Public Garages

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.

• 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.

• When installed over hoists, minimum
clearances to combustibles must be maintained
from the upper most point of objects on the hoist.

4.4 Electrical

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.

Canada: Refer to Canadian Electrical Code,
CSA C22.1 Part 1 - latest revision.

4.5 Venting

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).

9

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Burner with Tube
Gasket

Must be installed
with the flame

observation window
facing down.

Standard
Reflector
(Aluminum or
Stainless
Steel)

Alternate overlap as
shown on overview and on
Page 18, Figure 17. Minimum
overlap is 6" (16 cm).

Tube and Reflector Hanger
with Clamp Package

Position this hanger no more
than 4" (10 cm) away from the
burner.

Coupling Assembly
with Lock

Reflector End Cap

Punch out center
section to
accommodate tube.

Tube and Reflector Hanger

Suspend system from these
hangers.

Flex Gas Line with
Shut Off Cock

Tube

Hot rolled or heat
treated aluminized tube
supplied in 10' (3 m) lengths.

Reflector Support Strap &
Wire Form

Turbulator

Install turbulator
as specified in the
"Turbulator Installation" chart.
See Page 22, Step 6.4.
Turbulator is not required on the
CTH2V-125/150/175.

Vent Adapter

Burner Tube

Supplied in 10' (3 m) lengths.
Burner tube is always the first
tube after the burner.

SECTION 5: MAJOR COMPONENTS

FIGURE 13: Major Component Descriptions - Standard Reflector

10

FIGURE 14: Major Component Descriptions - High Efficiency Reflector

Burner with Tube
Gasket

Must be installed with
the flame observation
window facing down.

High Efficiency Reflector
(Aluminum)

Alternate
overlap as
shown on
overview
and
on Page 18, Figure 17.
Minimum overlap is 6" (16 cm).

Tube and Reflector Hanger
with Clamp Package-EF

Position this hanger no more
than 4" (10 cm) away from
the burner.

Coupling Assembly
with Lock

Reflector End Cap-EF

Punch out center
section to
accommodate tube.

Tube and Reflector Hanger-EF

Suspend system from these
hangers.

Flex Gas Line with
Shut Off Cock

Tube

Hot rolled or heat
treated aluminized tube
supplied in 10' (3 m) lengths.

Reflector Support Strap &
Wire Form

Turbulator

Install turbulator
as specified in the
"Turbulator Installation" chart.
See Page 22, Step 6.4.
Turbulator is not required on the
CTH2V-125/150/175.

Vent Adapter

Burner Tube

Supplied in 10' (3 m) lengths.
Burner tube is always the first
tube after the burner.

SECTION 5: MAJOR COMPONENTS

11

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

5.1 Standard Parts List Table 1: Contents of the Burner Carton

Part No. Description CTH2V-40 CTH2V-60CTH2V-80CTH2V-

100

031XXXXX Burner Assembly (Rate and Fuel Varies) 1 1 1 1 1 1 1

02568200 Gasket (Burner to Burner Tube) 1 1 1 1 1 1 1

131200NA Installation, Operation and Service Manual 1 1 1 1 1 1 1

94273914 Hex Head Bolts 5/16" - 18 Rolok 4 4 4 4 4 4 4

96411600 Split Lock washer 4 4 4 4 4 4 4

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

91317300 1/4" Quick Disconnect (Wire) 3 3 3 3 3 3 3

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

*91412203 Flexible Stainless Steel Gas Hose - 3/4" NPT (US Models Only) - - - - - 1 1

03051501 Turbulator Adapter 1 1 1 1 - - -

03051502 Turbulator Aluminized Steel 2 4 4 2 - - -

03051505 Turbulator Stainless Steel 1 - - - - - -

*Canadian Models: Rubber (Type 1) Gas Hoses available as an accessory.

See Page 42, Section 9

.

CTH2V-

125

CTH2V-

150

CTH2V-

175

Table 2: Contents of Standard Core and Extension Packages

Core Packages Extension Packages

Hot Rolled Aluminized Hot Rolled Aluminized

Part No. Description

91409300

91409408

03051101

03051601

Tube, Hot Rolled Steel, 10

'

(3 m)

Tube, HT Aluminized, 10' (3 m)

Burner Tube, ALUMI-THERM® Steel, 10' (3 m)

Burner Tube, HT ALUMI-THERM® Steel, 10' (3 m)

01312700 Coupling Assembly 1 2 3 - 1 2 3 1 2 3 4 1 2 3 4

02750303

Standard Reflector, 8

'

(3.5 m)

02750800 End Cap 2 2 2 2 2 2 2 - - - - - - - -

03090100Tube and Reflector Hanger 345234512341234

91907302S-Hook 345234512341234

03050010 Reflector Support Package (Strap, Wire Form, Screws) 2 3 5 1 2 3 5 2 3 4 6 2 3 4 6

91107720 U-Clip Package 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

90502701 Vent Adapter 1 1 1 1 1 1 1 - - - - - - - -

01318901 Tube Clamp Package 1 1 1 1 1 1 1 - - - - - - - -

Part Number

20

'

30

'

40

'

10

'

20

'

30

'

40

'

10

'

20

'

30

'

40

'

10

'

20

'

30

'

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

40

(12m)

123- - - -1234- - - -

----123----1234

-11--11--------

1--11----------

346234623462346

'

12

CP20HRS

CP30HRS

CP40HRS

CP10ALUM

CP20ALUM

CP30ALUM

EXP10HRS

CP40ALUM

EXP20HRS

EXP30HRS

EXP40HRS

EXP10ALUM

EXP20ALUM

EXP30ALUM

EXP40ALUM

Table 3: Contents of High Efficiency Core and Extension Packages

Core Packages Extension Packages

Hot Rolled Aluminized Hot Rolled Aluminized

Part No. Description

91409300

Tube, Hot Rolled Steel, 10

'

(3 m)

'

30

'

40

'

10

'

20

'

20

(6m)

(9m)

(12m)

(3m)

(6m)

30

(9m)

123- - - -1234- - - -

SECTION 5: MAJOR COMPONENTS

'

40

'

10

'

20

'

30

'

40

'

10

'

20

'

30

'

40

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

'

(12m)

91409408

03051101

03051601

Tube, HT Aluminized, 10

'

(3 m)

Burner Tube, ALUMI-THERM® Steel, 10' (3 m)

Burner Tube, HT ALUMI-THERM® Steel, 10' (3 m)

----123----1234

-11--11--------

1--11----------

01312700 Coupling Assembly 1 2 3 - 1 2 3 1 2 3 4 1 2 3 4

02750313

High Efficiency Reflector, 8

'

(3.5 m)

346234623462346

02750802 End Cap, High Efficiency 2 2 2 2 2 2 2 - - - - - - - -

03090102Tube and Reflector Hanger, High Efficiency 345234512341234

91907302S-Hook 345234512341234

03050012 Reflector Support Package (Strap, Wire Form, Screws) 2 3 5 1 2 3 5 2 3 4 6 2 3 4 6

91107720 U-Clip Package 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

90502701 Vent Adapter 1 1 1 1 1 1 1 - - - - - - - -

01318902 Tube Clamp Package - EF 1 1 1 1 1 1 1 - - - - - - - -

Part Number

CP20HRSEF

CP30HRSEF

CP40HRSEF

CP10ALUMEF

CP20ALUMEF

CP30ALUMEF

EXP10HRSEF

EXP20HRSEF

EXP30HRSEF

CP40ALUMEF

EXP40HRSEF

EXP10ALUMEF

EXP20ALUMEF

EXP30ALUMEF

EXP40ALUMEF

13

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Table 4: Component Package Guide

Tubing Length Standard Core Packages

Model

Minimum Hot Rolled Steel Aluminized

CTH2V-40 10’ (3m) - CP10ALUM

CTH2V-60 20’ (6m) CP20HRS CP20ALUM

CTH2V-80 20’ (6m) CP20HRS CP20ALUM

CTH2V-100 30’ (9m) CP30HRS CP30ALUM

CTH2V-125 40’ (12m) CP40HRS CP40ALUM

CTH2V-150 50’ (15m) CP30HRS + EXP20HRS CP30ALUM + EXP20ALUM

CTH2V-175 60’ (18m) CP30HRS + EXP30HRS CP30ALUM + EXP30ALUM

Table 5: Component Package Guide

Tubing Length High Efficiency Core Packages

Model

Minimum Hot Rolled Steel Aluminized

CTH2V-40 10’ (3m) - CP10ALUMEF

CTH2V-60 20’ (6m) CP20HRSEF CP20ALUMEF

CTH2V-80 20’ (6m) CP20HRSEF CP20ALUMEF

CTH2V-100 30’ (9m) CP30HRSEF CP30ALUMEF

CTH2V-125 40’ (12m) CP40HRSEF CP40ALUMEF

CTH2V-150 50’ (15m) CP30HRSEF + EXP20HRSEF CP30ALUMEF + EXP20ALUMEF

CTH2V-175 60’ (18m) CP30HRSEF + EXP30HRSEF CP30ALUMEF + EXP30ALUMEF

Although not recommended, additional tube lengths may be added to the heater. Tubing must be hot-rolled
steel, aluminized (heat-treated) or porcelain coated. Additional tube lengths beyond the specified minimum
tubing length are considered vent pipe for length determination. Maximum vent length allowed is 45' (13.7 m)
total.

14

SECTION 6: HEATER I NSTALLATION

WARNING

Severe Injury Hazard

Secure burner to burner tube with nuts 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.

SECTION 6: HEATER INSTALLATION

Typical installation configurations are shown in
Figure 15.
Expansion and contraction of the tube dictates that
the minimum suspension lengths in the table on
Page 16, Figure 15 be maintained.

To ensure your safety, and comply with the terms of
the warranty, all units must be installed in accor­dance 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.

15

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number

S-Hook 91907302
Tube/Reflector Hanger 030901XX

Run Length Typical Expansion Minimum “X” Length

10' (3 m) - 50' (15 m) ±1" (3 cm) 12" (305 mm)
51' (15 m) - 60' (18 m) ±2" (5 cm) 18" (457 mm)
61' (18 m) - 70' (24 m) ±3" (8 cm) 24" (609 mm)

FIGURE 15: Critical Hanger Placement

16

FIGURE 16: Linear Heater Assembly Overview

Tube

Reflector

Reflector End Cap

Reflector Support

Burner

Coupling

U-Clips

Burner Tube

Tube and Reflector Hanger

Tube Clamp

Package

Vent Adapter

Turbulator

(with Select Models)

SECTION 6: HEATER I NSTALLATION

17

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 17: Linear Heater Layout Overview

18

FIGURE 18: Linear Heater Layout Overview (Continued)

g

c

b

de

e e e

f

50' Tube Length

g

c

b

de

e e e e

f

60' Tube Length

b

f

g

c

de

e e e e e

70' Tube Length

b

b

f

g

c

de

e e e e e

80' Tube Length

b

e

SECTION 6: HEATER I NSTALLATION

19

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number

Burner Tube 03051XXX
S-Hook 91907302
Tube/Reflector Hanger 030901XX

Description Part Number

Tube Clamp Package 013189XX

Step 6.1 Burner Tube Installation

Step 6.2 Tube Clamp Package Installation

20

Step 6.3 Coupling and Tube Assembly

A

Close coupling and slide
opposite end into tab.
Position tab underneath
guide rail.

B

Insert wide end of slide bar/coupling lock into
guide rail on opposite end of tabs. Slide the slide
bar/coupling lock up the guide rail until snug
(approximately 3" (8 cm) to 4" (10 cm)).

C

Insert tubes into coupling
until end of each tube rests

against internal pins.

D

Strike slide bar/coupling lock with mallet or hammer
until tight.

Description Part Number

Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube 91409XXX

• Repeat Step 6.3 A - D until all tubes are assembled. See Page 22, Section 6.3.2.

Tighten slide bar as shown below.

SECTION 6: HEATER I NSTALLATION

Step 6.3.1 Coupling and Tube Assembly (Continued)

21

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

10' ± 1'

(305 cm ± 25 cm)

Total Overall
Tube Length

7' 6" ± 1'

(229 cm ± 25 cm)

Model Tube Length Minimum

CTH2V-40 10' (3 m)
CTH2V-60 20' (6 m)
CTH2V-80 20' (6 m)
CTH2V-100 30' (9 m)
CTH2V-125 40' 12 m)
CTH2V-150 50' (15 m)
CTH2V-175 60' (18 m)

Description Part Number

Turbulator Adapter 03051501
Turbulator Section 03051502
Turbulator Section (stainless) 03051505
Tube 91409XXX

Turbulator Installation

Model Tube Section

CTH2V-40 1st 10' Section
CTH2V-60 2nd 10' Section
CTH2V-80 2nd 10' Section
CTH2V-100 3rd 10' Sec tion
CTH2V-125 N/A
CTH2V-150 N/A
CTH2V-175 N/A

Install turbulator as specified in
the "Turbulator Installation"
charge below. Turbulator is not
required on the CTH2V-125,
150, 175.

Step 6.3.2 Coupling and Tube Assembly (Continued)

Step 6.4 Turbulator Installation

22

Step 6.5 Reflector Installation

Description Part Number

Tube/Reflector Hanger 030901XX
Burner Tube 03051XXX
Reflector - 96" (244cm) 027503XX

NOTE: All tube surfaces must be covered

by a reflector, except for a U-Tube.

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.

SECTION 6: HEATER I NSTALLATION

23

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

1. Slide first reflector after burner a minimum 2” (4 cm) through first hanger and
ensure reflector end cap is securely fastened via U-clips, pop rivets, or sheet
metal screws. Position reflector support with tight screws in middle of first
reflector.

NOTE: High efficiency
reflectors should NOT
be used in applications
exposed to wind.

Description Part Number
Reflector Support Package 030500XX

Wire Form 91908004
Reflector Support Strap 0305000X

Screw #8 x 3/4 94320812
U-Clip Package 91107720
Reflector End Cap 027508XX

Step 6.5.1 Reflector, U-Clip and Reflector Support Installation

The pictorial drawings of the heater construction in
Section 6 are schematic only and provide a general
guideline of where hangers, reflector supports and
U-clips are to be installed.

To ensure proper expansion and contraction move-
ment of the reflectors, a combination of U-clips and

tor supports and U-clips depends on the individual
installation. Use either pop rivets or sheet metal
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.

reflector supports are used. The positioning of reflec-

24

Step 6.6 Burner Installation

NOTE: To ensure proper orientation,
attached burner tube with tube weld
facing downward

Description Part Number

Burner 031XXXXX
Lock Washer 96411600
Gasket 02568200

SECTION 6: HEATER I NSTALLATION

25

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

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 7: OPTIONAL HEATER ACCESSORIES

7.1 U-Tube Configuration

Heaters (except CTH2V-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, Figure 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 CTH2V-60/80 and a
minimum of 15' (4.5 m) on CTH2V-100/125/150/
175 is required between the burner and the U­Tube.

• The correct turbulator (
must be installed in the last standard section of
tube.

• The burner must never be operated in a tilted posi­tion.

• The heater must be properly supported at all loca­tions.

See Page 28, Figure 20

See Page 22, Figure 6.4

.

)

26

FIGURE 19: U-Tube Heater Assembly Overview

Description Part Number
U-Tube Package 03011XXX

180° U-Tube 013359XX
Tube and Reflector Hanger 030901XX
Coupling 01312700
Reflector End Cap 027508XX
U-Tube Support Bracket 030205XX
4" (10 cm) U-Bolts 91912500

Reflector Support Set 030500XX

S-Hook 91907302
Hex Nut 92113000
Lock Washer 96411500

SECTION 7: OPTIONAL H EATER ACCES SORIES

27

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 20: U-Tube Heater Layout Overview

28

FIGURE 21: U-Tube Heater Layout Overview (Continued)

c

b

de

e

f

g

h

70' Tube Length**

c

b

de

e

g

h

60' Tube Length

c

b

de

f

g

h

50' Tube Length* **

c

b

de

e

g

h

80' Tube Length

e

SECTION 7: OPTIONAL H EATER ACCES SORIES

29

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number
Elbow Package 027187XX

90° Elbow 01335801
Coupling 01312700
Reflector End Cap 0275080X
Reflector Joint Piece 0275090X

U-Clip Package 91107720

Minimum Distance Required Between
Burner and Elbow

Model Minimum Distance

CTH2V-40 N/A
CTH2V-60 10' (3 m)
CTH2V-80 10' (3 m)
CTH2V-100 15' (4.5 m)
CTH2V-125 15' (4.5 m)
CTH2V-150 15' (4.5 m)
CTH2V-175 15' (4.5 m)

7. 2 E l b o w P a ck a ge Configuration
Step 7.2.1 Elbow Installation

Step 7.2.2 Elbow Installation

Step 7.2.3 Reflector Joint Installation

30

Step 7.2.4 Reflector Joint Installation

Step 7.2.5 Reflector Joint Detail

SECTION 7: OPTIONAL H EATER ACCES SORIES

FIGURE 22: Reflector Joint Detail

31

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Reflector Side

Extension Bracket

(2 per Reflector)

Use additional supports

in high air movement

applications.

Tube and Reflector Hanger

ReflectorTube

Reflector Support

Description Part Number
Reflector Side Extension Package 0271270X

Reflector Side Extension - 96" (244cm) 0136800X
Retainer Clips 02751200
Sheet Metal Screws94118106

Order Separately

Reflector Side Extension Bracket 01329911

7.3 Reflector Side Extension Step 7.3.1 Bracket Installation

Step 7.3.2 Side Reflector Installation

32

7.4 Lower Clearance Shield Installation

12"

(30 cm)

Reflector

Lower Clearance Shield

17"

(43 cm)

Washers

Screws

Locknuts

Align Pilot Holes

Description Part Number
Lower Clearance Shield Package 01397501

Shield Support Strap 01397500
Lower Clearance Shield 8' (2447cm) 02793000
Locknut #8 92311400
Flat Washer #8 95310800
Screw #8 x 3/8" 93511406

Description Part Number

Aluminum Grille 2' x 4' (.6m x 1.2 m) 91407000

Step 7.4.1 Shield Support Strap Assembly

SECTION 7: OPTIONAL H EATER ACCES SORIES

7.5 Two-Foot Decorative Grille Installation Step 7.5.1 Grille Installation

33

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number

Deco Grille Shield - 24" (61cm) 01365900

Distance "A" Extension

Minimum Maximum Part No. Width

2" (4 cm) 6" (15 cm) 013704XX 8" (20 cm)

6" (15 cm) 10" (26 cm) 013704XX 12" (30 cm)

10" (26 cm) 14" (37 cm) 013704XX 16" (40 cm)

Description Part Number

Reflector Side Extension 013704XX

Step 7.5.2 Frame Shield Installation

Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles

34

7.6 Protective Grille Installation

Silicone Cap

Grille
Finger

Description Part Number

Grille Section 08050001
Grille End Cap 08050002
Silicone Cap 91915951-6P

NOTE: Protective grille available for use with
standard reflector ONLY.

Bend up 90°.

Pull outward.

Grille

Grille End Cap

A

B

C

D

Grille

Grille

End Cap

Reflector

Final Grille
Section

40"

(101 cm)

Step 7.6.1 Silicone Cap Installation

SECTION 7: OPTIONAL H EATER ACCES SORIES

Step 7.6.2 Grille End Cap Installation

Step 7.6.3 Grille Installation

35

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

WARNING

Carbon Monoxide Hazard

Heaters installed unvented must be interlocked
with sufficient building exhaust.

Heaters must be installed according to the
installation manual.

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.

SECTION 8: VENTING

Vent pipe must be sloped downward away from the
burner 1/2'' (1 cm) for every 20' (6 m).

The heater may be individually vented or common
vented. When venting horizontally, a maximum of two
heaters can be commonly vented. See Page 38,
Section 8.9. When venting vertically, a maximum of
four heaters can be commonly vented. See Page 39,
Section 8.10.

The heater may also be installed unvented in certain
circumstances according to building
codes. Refer to the above codes and Page 36,
Section 8.2 for further information. Unvented
operation also requires compliance with the
clearances to combustibles given on Page 8, Figure

12.

The bottom of the vent or air intake terminal shall not
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.

Vent terminal must be installed at a height sufficient
to prevent blockage by snow and building materials
protected from degradation by flue gasses.

ventilation

8.1 General Venting Requirements

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:

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.

Exhaust end of heater will accept a 4
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.

Any portion of vent pipe passing through a
combustible wall must have an approved thimble
to conform with the above listed codes.

' (10 cm) vent

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.

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).

Vent must terminate at least 4' (1.2 m) below, 4'
(1.2 m) horizontally from, or 1' (.3 m) abov
operable window, or gravity air inlet into any building.

8.1.2 Canadian Requirements

The vent shall not terminate within 6' (1.8 m) of a
mechanical air supply inlet to any building.

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.

8.2 Unvented Operation

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).

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 sw

itch.

e any door,

36

SECTION 8: VENTING

4" (10 cm)

Single Wall Pipe

Vent Adapter

Vent Terminal

Combustible or

Non-Combustible Wall

Vent Adapter

18" (46 cm)

Min.

Vent Terminal

4" (10 cm) Single Wall Pipe

Non-Combustible Wall Only

SIDE VIEW

Description Part Number

Vent Terminal (Comb. Wall) 90502100
Vent Terminal 02537801-XX

8.3 Horizontal Venting

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.

8.4 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) m

ust be used.
For common vertical venting of more than two
heaters, See Page 39, Section 8.10.
A vent shall not extend less than 2' (.6m) above the
highest point where it passes through a flat roof of a
building.

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.

FIGURE 23: Tube Termination

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).

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.

Subtract 15' (4.6 m) of maximum allowed vent or duct
length per vent elbow if more than two are used.

8.6.1 Vent Material Recommendations

Vent recommendations:

1. Porcelain coated tubing 4'' (10 cm) O.D.
(P/N 9141030D)

2. Heat treated aluminized tubing 4'' (10 cm) O.D. (P/N 91409408) Heat treated aluminized tubing 6'' (15 cm) O.D. (P/N E0009105)

3. Single wall flue pipe - minimum 26 ga. (Supplied by others)

NOTE: 4" (10 cm) O.D. Porcelain coated tubing (P/N
9141030D), 4" (10 cm) O.D. Heat treated aluminized
tubing (P/N 91409408), and 6" (15 cm) O.D. Heat
treated aluminized tubing (P/N E0009105) are equiv-
alent to single wall flue pipe.

8.7 Horizontal Ventilation 4" (10 cm) Pipe

37

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number

Vent Cap 4" (10 cm) 90502300

Description Part Number

Vent Terminal 6" (15 cm) 90502101

8.8 Vertical Ventilation 4" (10 cm) Pipe

Step 8.9 Common Sidewall Venting

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.

38

8.10 Common Vertical Venting

SECTION 8: 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 posi­tioned to avoid direct opposition between streams
of combustion gases.

39

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Description Part Number

Vent Cap 4" (10 cm) 90502300

Description Part Number

Vent Cap 4" (10 cm) 90502300

Band Clamp

(Recommended)

Flex Hose

(Recommended)

Vent Cap

Wall

4" (10 cm)
Single Wall Pipe

Burner

8.11 Outside Combustion Air Supply

IMPORTANT: If the building has a slight negative
pressure or corrosive contaminants, such as haloge­nated hydrocarbons, are present in the air, an outside
combustion air supply to the heater is required. Seal
all combustion air pipe joints.

Use of optional outside combustion air is not recom­mended with unvented heaters.

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 termination while maintaining a minimum
distance of 3' (93 cm) for both vertical and horizontal
venting.

8.11.1 Length Requirements

Follow the constraints listed on Page 37, Section 8.6.

8.11.2 Vertical Outside Air Supply for Single Heater Installation

8.11.3 Horizontal Outside Air Supply for Single Heater Installation

40

8.11.4 Vertical Outside Air Supply for Double Heater Installation

Description Part Number

Vent Cap 6" (15 cm) 90502302

Description Part Number

Vent Cap 6" (15 cm) 90502302

SECTION 8: VENTING

Requirements:

• Heaters must be controlled by a common thermostat.

8.11.5 Horizontal Outside Air Supply for Double Heater Installation

Requirements:

• Heaters must be controlled by a common thermostat.

41

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

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.

SECTION 9: GAS PIPING

WARNING

Fire Hazard

Tighten gas hose fittings to connect gas
supply according to Figure 23.

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.

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 24.

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 maxi­mum pressure drop of 1/2" wc When gas piping is not
included in the layout drawing, the local gas supplier

will us

ually help in planning the gas piping.

Gas lines must meet applicable codes:

United States: The Flexible Stainless Steel Gas
Hose (US models) supplied with the heater is certi­fied per the Standard for Connectors for Gas Appli­ances, 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.

• Check the pipe and tubing ends for leaks
before placing heating equipment into ser­vice. When checking for gas leaks, use a soap
and water solution; never use an open flame.

Install the gas hose as shown in Figure 24. 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.

42

FIGURE 24: Gas Connection with Flexible Gas Hose

Description Part Number

1/2" Flexible Stainless Steel Gas Hose (US Models) 91412200
3/4" Flexible Stainless Steel Gas Hose (US Models) 91412203
1/2" Rubber Type 1 Gas Hose (Canadian Models) 91412206
3/4" Rubber Type 1 Gas Hose (Canadian Models) 91412207

Description Part Number

High Pressure Regulator - 2 psi 90207600
High Pressure Regulator - 5 psi 90207601

CORRECT POSITIONS

Shut-Off Valve (included
with gas hose) must 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.

3" (8 cm)

12"

(30 cm)

max. displacement

Side View

SECTION 9: GAS P IPING

CAUTION

Product Damage Hazard

Hold gas nipple securely with pipe wrench
when attaching gas hose.

Failure to follow these instructions can result
in product damage.

Vertical

(as shown left)

45°

Alternate
positions
okay

Flexible Gas Hose
36" (91 cm) length

Heater Movement

Horizontal

End View

43

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Line Voltage

Thermostat

Gnd. Gnd.

120 V-60 Hz

Supply Circuit

HN HN

Gnd.

L1
L2

T

Jumper Between R
and W

C

R

W

Gnd.

120 V-60 Hz

Supply Circuit

HN

Gnd.

L1
L2

Low Voltage

Thermostat

T

C

R

W

Low Voltage Thermostat

with Ground

NOTE: Terminals “C” and “R” provide 24 VAC to power thermostat

SECTION 10: WIRING

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

Management System. Section 10.1 below illustrates
the connection for heaters controlled by a line voltage
thermostat. NOTE: In order to use line voltage ther­mostats, 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 thermo­stat, See Section 10.2 below. To control multiple
heaters on one low voltage thermostat, See Page 45,
Section 10.3. 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.

10.2 Low Voltage Thermostat with One Burner

.

44

10.3 Low Voltage Thermostat Wiring with Multiple Burners

NH

Gnd.

NH

Gnd.

L1

L2

Gnd.

120V-60 Hz

supply circuit

Low Voltage Thermostat

RC

W

G

Y

1

2

3

456

COIL COIL

Black

Black

White Red

Transformer Relay

FRONT VIEW BACK VIEW

Burner 1 Burner 2

NH

Gnd.

Burner 3

NH

Gnd.

Burner 4

Purple

Red/Yellow

When using 1-2 burners, use SPST

Transformer Relay.

When using 3-4 burners, use SPDT

Transformer Relay.

2

Jumper Between
R and W

C

R

W

NOTE:

24VAC thermostat
powered by others
when controlling
multiple burners

Description Part Number

Thermostat Relay-SPST 90417600K
Transformer Relay-SPDT 90436300

POWER SUPPLY
120V 60 HZ

L1

L2

GAS

VALVE

GRN

BLK

WHT

MOTOR/BLOWER

GRN

BLK

BLK

BLK

BUSHING

TERMINAL

3

1

4

5

TRANSFORMER

GRN

IGNITION

MODULE

YEL

BRN

BLUE

YEL

PURPLE

YEL

WHT

PRESSURE SWITCH

PLUG

3

1

R1

R1

YEL

24V STAT

BY OTHERS

BLUE

BUSHING

TERMINAL

LED

+

ELECTRODE

DOOR

SWITCH

YEL

CR

W

SEE NOTE 1

TH
C1
V1
C2
S1
V2
GND

BLK

N.O.

COM

SECTION 10: WIRING

er

10.4 Internal Wiring

45

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

120VAC

R1

120VAC

24VAC

RELAY

24V

PRESSURE

TH V2

S1

SPARK

C2

TRANSFORMER

(L1)

GND

(L2)

SWITCH

THERMOSTAT

BLOWER

LINE

NUETRAL

R1

ELECTRODE

GAP

V

BURNER ON

GAS VALVE

DOOR

SWITCH

10.5 Ladder Diagram

10.6 Electrical Connection to the Burner

46

SECTION 11: OPERATION AND MAINTENANCE

Cut/Pinch Hazard

Wear protective gear
during installation,
operation and service.

Edges are sharp.

WARNING

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

Burn Hazard

Allow heater to cool
before service.

Tubing may still be hot
after operation.

Explosion Hazard

Turn off gas supply to
heater before service.

DANGER

Electrical Shock Hazard

Disconnect electric
before service.

Heater must be
connected to a properly
grounded electrical
source.

SECTION 11: OPERATION AND MAINTENANCE

This heater is equipped with a direct spark ignition
system.

11.1 Sequence of Operation

4. Turn the thermostat up. When the thermostat calls for heat, the blower motor will energize.

5. When the motor approaches nominal running RPM, the pressure switch closes and activates the ignition module.

6. After a 45 second prepurge, the ignition module then opens the gas valve and energizes the spark igniter.

7. When the flame is established, the sparking sequence ceases.

8. If the flame is not established during the ignition
sequence, the ignition module closes the gas
valve and purge begins. Module will try 2
additional times for ignition (with purges in
between trials). If ignition is not established, the
module will lockout.

9. If the flame extinguishes during operation, the
ignition module will attempt the multiple trial
sequence described in step 5. If ignition is not
re-established, the module w
hour or until reset.

10.After lockout, the control can be reset by turning down thermostat for five seconds, and then raising it again to desired temperature, or by disconnecting power and then reconnecting.

ill lockout for one

11. When thermostat is satisfied, all power to the unit is shut off.

11.2 To Shut Off Heater

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

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.

11.4 Pre-Season Maintenance and Annual Inspection

To e n s ure you
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
service or maintenance. Allow heater to cool before
servicing.

Before every heating season, a contractor qualified in
the installation and service of gas-fired heating
equipment must perform a thorough safety inspec­tion of the heater.

For best performance, the gas, electrical, thermostat
connections, tubing, venting, suspensions and over-

r safety and years of trouble-free oper-

47

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

all heater condition should be thoroughly inspected.

NOTE: Gas flow and burner ignition are among the
first things that should be inspected.

Please see Page 48, Section 11.5 for suggested
items to inspect.

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.

To help facilitate optimum performance and safety,
Roberts-Gordon LLC recommends that a qualified

11.5 Maintenance Checklist

Installation Code and Annual Inspections:

All installation and service of ROBERTS GORDON
equipment must be performed by a contractor

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

qualified in the installation and service of equipment
sold and supplied by Roberts-Gordon LLC and

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 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 24, Section 6.5.1.

Clean outside surface with a damp cloth.

Vent Pipe 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 du

st. Clean as required.

Remove any carbon deposits or scale using a wire brush.

See Page 36, Section 8.

Outside Air Inlet 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.

Tubes Make sure there are no cracks.

Make sure tubes are connected and suspended securely.

See Page 15, Section 6.

Make sure there is no sagging, bending or distortion.
Clean or replace as required.

Gas Line Check for gas leaks. See Page 42, Section 9.
Burner Observation

Window

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

Clean and replace as required.

48

SECTION 11: OPERATION AND MAINTENANCE

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.

Electrode Replace if there are cracked ceramics, excessive carbon residue, or erosion

of the electrode.

The electrode gap should be 1/8" (3.2 mm).

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

See Page 44, Section 10.

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

or ceiling. See Page 16, Figure 15.

Decorative and Protective
Grille (optional)

The grille must be securely attached.

Check that the side reflector extensions are installed correctly and secured in
place if necessary. (Decorative grille only.)

See Page 33, Section 7.5 and Page 35, Section 7.6.

Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 34, Section 7.5.2.

Lower Clearance Shield
(optional)

The lower shield must be securely attached. Inspect shield s

upport straps

and lower clearance shield anchor points. See Page 33, Section 7.4.

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

See Page 33, 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 ROB­ERTS GORDON

®

independent distributor to obtain replacement signs or

labels. See Page 2, Figure 1 through Page 3, Figure 2.

49

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Fire Hazard

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.

Cut/Pinch Hazard

Wear protective gear
during installation,
operation and service.

Edges are sharp.

WARNING

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

Burn Hazard

Allow heater to cool
before service.

Tubing may still be hot
after operation.

Explosion Hazard

Turn off gas supply to
heater before service.

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.

50

12.1 Troubleshooting Flow Chart

Module Diagnostic Codes:

LED Problem Solution

4 second steady

flash at start of cycle Normal Wait for valve to open

Steady on Microprocessor failure Replace module

within module

Three flashes Ignition lockout Recycle unit: check for

Lockout of module spark and valve opening and

after 3 tries replace:if none, replace module

SECTION 12: TROUBLESHOOTING

51

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

52

12.2 Manifold Gas Pressure Setting

SECTION 12: TROUBLESHOOTING

53

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Carbon Monoxide Hazard

WARNING

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.

Explosion Hazard

DANGER

Electrical Shock Hazard

Fire Hazard

SECTION 13: REPLACEMENT PARTS

See warnings and important information before removing or replacing parts. After any maintenance or repair
work, always test fire the heater in accordance with the start-up instructions on Page 47, Section 11 to help

ensure all safety systems are in working order before leaving the heater to operate. Minor faults may be
traced by using the troubleshooting charts on Page 50, Section 12 through Page 53, Figure 12.2.

54

FIGURE 25: Burner Exploded View

Description

Part Number

1 Gas Valve (Natural)

90032510

1Gas Valve (LP)

90032512

Tube Gasket (Not Shown)

02568200

Blower Inlet Gasket (Not Shown)

03050900

2 Motor and Blower Assembly

90708600-P

Air Adapter Collar

91911704

3 Burner Cup Assembly

03020100

4 Electrode Assembly

90427400

Mica Window Assembly (Not Shown)

02553203

5 Transformer

90436900K

6 Thermostat Connection (3 Pin)

91317904

Jumper Wire (Not Shown)

03090900

7Pressure Switch:

(175)

90439802K

(100)

90439803K

(40, 60, 125)

90439805K

(80, 150)

90439810K

8 24 Vac Relay

90447140

9 DSI Ignition Module

90439500K

10 LED Burner Status Light

91316103

SECTION 13: REPLACEMENT PARTS

55

CTH2V-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Heat Input Rate Length “A”

Recommended

Minimum Mounting Height*

Model (Btu/h) x (1000) Minimum Space Spot

CTH2V-40 40 10' (3m) 8'-10' (2.4 - 3m) 8' (2.4m)

CTH2V-60 60 20' (6m) 10'-12' (3 - 3.6m) 9' (2.7m)'

CTH2V-80 80 20' (6m) 12'-15' (3.6 - 4.5m) 11' (3.3m)

CTH2V-100 100 30' (9m) 12'-15' (3.6 - 4.5m) 12' (3.7m)

CTH2V-125 125 40' (12m) 15'-20' (4.5 - 6m) 15' (4.6m)

CTH2V-150 150 50' (15m) 20'-25' (6 - 7.6m) 20' (6.1m)

CTH2V-175 175 60' (18m) 25' (7.6m) 23' (7m)

SECTION 14: GENERAL SPECIFICATIONS

14.1 Material Specifications

14.1.1 Reflectors

.024 Aluminum
(optional .024 Stainless Steel Type 304)

14.2 Heater Specifications

14.2.1 Ignition

Fully automatic, three-try, direct spark, electronic
ignition control, 100% safety shut-off.

General Specifications for the heaters are as follows:

14.3 Suspension Specifications

Hang heater with materials with a minimum working
load of 75 lbs (33 kg). See Page 16, Figure 15.

14.4 Controls Specifications

Time switches, thermostats, etc. can be wired into
the electrical supply. External controls supplied as an
optional extra.

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

GAS PRESSURE AT MANIFOLD:

Natural Gas: 3.5" wc
LP Gas: 10.5" wc

PIPE CONNECTION:

1/2" NPT (for 40, 60, 80, 100, 125)
3/4" NPT (for 150 & 175)

DIMENSIONS:

Vent Connection Size: 4" (10 cm)
Outside Air Connection Size: 4" (10 cm)
Refer to figure above for dimensional information.

56

GAS INLET PRESSURE:
Natural Gas:

for 40,60,80,100,125,150 4.6" wc Minimum
for 175 5.0" wc Minimum

LP Gas: 11. 0" wc Minimum

ELECTRICAL RATING (ALL MODELS):

120 V - 60 Hz., 1.0 A

14.0" wcMaximum

14.0" wcMaximum

SECTION 15: THE ROBERTS GORDON® VANTAGE® CTH2V WARRANTY

SECTION 15: THE ROBERTS GORDON

®

VANTAGE® CTH2V WARRANTY

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.

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

®

VANTAG E® CTH2V warranty.

ROBERTS-GORDON WILL NOT PAY FOR:

Service trips, service calls and labor charges.
Shipment of replacement parts.
Claims where the total price of the goods have not

been paid.
Damage due to:

• Improper installation, operation or maintenance.

• Misuse, abuse, neglect, or modification of the
ROBERTS GORDON

• Use of the ROBERTS GORDON

®

VANTAG E® CTH2V in any way.

®

VANTAG E® CTH2V
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 acces­sories not specified by Roberts-Gordon.

• Failure to install or maintain the ROBERTS GORDON
VANTAG E® CTH2V as directed in the Installation,
Operation and Service manual.

®

• Relocation of the ROBERTS GORDON

VANTAG E®

CTH2V after initial installation

®

• The use of the ROBERTS GORDON

VANTAG E®
CTH2V in a corrosive atmosphere containing contami­nants.

®

• The use of the ROBERTS GORDON

VANTAG E®
CTH2V in the vicinity of a combustible or explosive
material.

®

• Any defect in the ROBERTS GORDON

VANTAG E®
CTH2V arising from a drawing, design, or specification
supplied by or on behalf of the consumer.

• Damage incurred during shipment. Claim must be filed
with carrier.

WARRANTY IS VOID IF:

The ROBERTS GORDON® VANTAG E® CTH2V is not
installed by a contractor qualified in the installation and
service of gas fired heating equipment.

Yo u 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

®

VANTAG E®
CTH2V is moved or transferred. This warranty is
nontransferable.

Roberts-Gordon is not permitted to inspect the damaged
controller and/or component parts.

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

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

www.robertsgordon.com

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.

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

®

VANTAG E® CTH2V.
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.

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.

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.

57

2017