Roberts Gorden CTH2-40 User 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.
Installer
Please take the time to read and understand
these instructions prior to any installation.
Installer must give a copy of this manual to the owner.
Owner
Keep this manual in a safe place in order to provide
your serviceman with necessary information.
WARNING
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in
your building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas
supplier after leaving the building.
Follow the gas supplier’s
instructions.
8. If you cannot reach your gas
supplier, call the Fire Department.
Fire Hazard
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
Some objects will catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
®
Vantage
II
Gas-Fired, Low Intensity
Unitary Heater
Installation, Operation &
Service Manual
CTH2-40
CTH2-60
CTH2-80
CTH2-100
CTH2-125
CTH2-150
CTH2-175
© 2009 Roberts-Gordon LLC
Roberts-Gordon LLC
1250 William Street
P.O . B o x 44
Buffalo, New York 14240-0044
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
www.rg-inc.com
www.radiantheaters.com
P/N 130100NA Rev. L 0409
© 2009
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 M an p o wer Requirements .............................................1
1.2 Safety Labels and Their Placement ............................. 1
SECTION 2: Installer Responsibility ..................................... 3
2.1 Wall Tag .......................................................................3
2.2 Corrosive Chemicals....................................................3
2.3 National Standards and Applicable Codes ..................3
SECTION 3: Clearances to Combustibles............................. 4
3.1 Required Clearances to Combustibles......................... 4
SECTION 4: National Standards and Applicable Codes .....8
4.1 Gas Codes...................................................................8
4.2 Aircraft Hangars........................................................... 8
4.3 Public Garages ............................................................8
4.4 Electrical ......................................................................8
4.5 Venting.........................................................................8
4.6 High Altitude ................................................................8
SECTION 5: Major Components............................................9
5.1 Standard Parts List .................................................... 10
SECTION 6: Heater Installation............................................12
6.1 Burner Tube Installation ............................................17
6.2 Tube Clamp Package Installation..............................17
6.3 Coupling and Tube Assembly....................................18
6.4 Turbulator Installation ................................................19
6.5 Reflector Installation .................................................. 20
6.6 Burner Installation...................................................... 22
SECTION 7: Optional Heater Accessories..........................23
7. 1 U - Tube Configuration..................................................23
7.2 Elbow Package Configuration.....................................27
7.3 Reflector Side Extension ............................................ 29
7.4 Lower Clearance Shield Installation ........................... 30
7. 5 Two-Foot Decorative Grille Installation.......................30
7.6 Protective Grille Installation........................................32
SECTION 8: Venting..............................................................33
8.1 General Venting Requirements..................................33
8.2 Unvented Operation................................................... 33
8.3 Horizontal Venting...................................................... 34
8.4 Vertical Venting.......................................................... 34
8.5 Unvented Operation Tube Termination ...................... 34
8.6 Length Requirements ................................................34
8.7 Horizontal Ventilation 4" (10 cm) Pipe........................34
8.8 Vertical Ventilation 4" (10 cm) Pipe............................35
8.9 Common Sidewall Venting......................................... 35
8.10 Common Vertical Venting ........................................36
8.11 Outside Combustion Air Supply ...............................37
SECTION 9: Gas Piping........................................................39
SECTION 10: Wiring.............................................................. 41
10.1 Line Voltage Thermostat Wiring............................... 41
10.2 Low Voltage Thermostat with One Burner ............... 41
10.3 Low Voltage Thermostat Wiring with Multiple
Burners .................................................................... 42
10.4 Internal Wiring ......................................................... 42
10.5 Ladder Diagram....................................................... 43
10.6 Electrical Connection to the Burner ......................... 43
SECTION 11: Operation and Maintenance.......................... 44
11.1 S eq uence of Operation ............................................ 44
11.2 To Sh ut Off Heater.................................................... 44
11.3 To Start Heater ......................................................... 44
11.4 Pre-Season Maintenance and Annual Inspection..... 45
11.5 Maintenance Checklist ............................................. 45
SECTION 12: Troubleshooting............................................. 47
12.1 Honeywell SmartValve
12.2 Troubleshooting Flow Chart ..................................... 49
12.3 Manifold Gas Pressure Setting ................................ 51
SECTION 13: Replacement Parts ........................................ 52
SECTION 14: General Specifications.................................. 55
14.1 Material Specifications............................................. 55
14.2 Heater Specifications............................................... 55
14.3 Suspension Specifications....................................... 55
14.4 Controls Specifications ............................................ 55
SECTION 15: The ROBERTS GORDON
Warranty......................................................... 57
®
II Troubleshooting .............. 48
®
VANTAGE® II
Printed in U.S.A.
TABLE OF FIGURES
Figure 1: Top and Bottom Panel Label Placement .................... 1
Figure 2: Side and Back Panel Label Placement ...................... 2
Figure 3: Standard Reflector .....................................................4
Figure 4: One Side Reflector.....................................................5
Figure 5: Two Side Reflectors ................................................... 5
Figure 6: 45° Tilt Reflector ........................................................5
Figure 7: U-Tube, Standard Reflector........................................6
Figure 8: U-Tube, 45° ................................................................ 6
Figure 9: U-Tube, Opposite 45° Reflector ................................. 6
Figure 10: 2-Foot Deco Grille and Protective Grille ...................7
Figure 11: Lower Clearance Shield ...........................................7
Figure 12: Venting .....................................................................7
Figure 13: Major Component Descriptions................................9
Figure 14: Critical Hanger Placement .....................................13
Figure 15: Linear Heater Assembly Overview ........................14
Figure 16: Linear Heater Layout Overview.............................. 15
Figure 17: Linear Heater Layout Overview (Continued).......... 16
Figure 18: U-Tube Heater Assembly Overview ......................24
Figure 19: U-T
Figure 20: U-Tube Heater Layout Overview (Continued) ........26
Figure 21: Reflector Joint Detail.............................................. 28
Figure 22: Tube Termination ...................................................34
Figure 23: Gas Connection with Flexible Gas Hose ...............40
ube Heater Layout Overview ............................25
LIST OF TABLES
Table 1: Contents of the Burner Carton..................................10
Table 2: Contents of Core and Extension Packages.............. 10
Table 3: Component Package Guide......................................11
SECTION 1: HEATER S AFETY
Logo Label
Rating Plate Label
Bottom
Panel
Top Panel
Gas Connection Label
Description Part Number
Logo Label 91013200
Rating Plate Label 91010401
Gas Connection Label 91018122
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.
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 during installation,
operation and service. Thin sheet metal parts,
FIGURE 1: Top and Bottom Panel Label Placement
including the aluminum reflector portion of the heater
and the various venting components, ha
ve 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.
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 are legible.
Please contact Roberts-Gordon or your ROBERTS
GORDON
®
independent distributor to obtain
replacement signs or labels. See Page 1, Figure 1
through Page 2, Figure 2.
1
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
Clearances to Combustibles Label
Control Side Panel
Control Side Panel (Inside) Wiring Label
Description Part Number
Clearances to Combustibles Label 91013415
Wiring Label 91013300
Thermostat Connection Label 91037902
Vent Length Label 91039500
Lighting Instruction Plate Label 91029602
Lighting Instruction Plate Label
Thermostat
Connection
Label
Vent Length Label
Back Panel
FIGURE 2: Side and Back Panel Label Placement
2
SECTION 2: INSTALLER R ESPONSIBILITY
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.
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
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.
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
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
stion, venti-
®
Controller).
on the burner and in the Installation, Operation and
Service Manual. See Page 4, Figure 3 through Page
7, 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
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.
3
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
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.
SECTION 3: CLEARANCES TO COMBUSTIBLES
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 4, Figure 3 through
Page 7, 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 appliance.
• The stated clearances to combustibles represents
a surface temperature of 90° F (32°C) above room
temperature. Building materials with a low heat tolerance (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.
• 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 conspicu ous
location.
• 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.
• Hang heater in accordance to the minimum suspension 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 13, Figure 14
.
FIGURE 3: STANDARD REFLECTOR
Model A B C D A B C D
CTH2-40 6 27 53 27 16 69 135 69
4
CTH2-60 6 35 63 35 16 89 161 89
CTH2-80 6 38 66 38 16 97 168 97
CTH2-100 6 40 71 40 16 102 181 102
CTH2-125 6 46 77 46 16 117 196 117
CTH2-150 6 50 80 50 16 127 204 127
CTH2-175 8 52 82 52 21 133 209 133
(inches) (centimeters)
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
A
C
D
B
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 4: ONE SIDE REFLECTOR
Model A B CDABCD
CTH2-40 6 9 53 44 16 23 135 112
CTH2-60 6 9 63 47 16 23 161 120
CTH2-80 6 9 70 54 16 23 178 138
CTH2-100 6 9 77 59 16 23 196 150
CTH2-125 6 9 83 65 16 23 211 166
CTH2-150 6 9 86 69 16 23 219 176
CTH2-175 8 9 88 73 21 23 224 186
FIGURE 5: TWO SIDE REFLECTORS
Model A B CDABCD
CTH2-40 6 15 53 15 16 39 135 39
CTH2-60 6 23 66 23 16 59 168 59
CTH2-80 6 25 72 25 16 64 183 64
CTH2-100 6 27 78 27 16 69 199 69
CTH2-125 6 32 84 32 16 82 214 82
CTH2-150 6 35 88 35 16 89 224 89
CTH2-175 8 40 91 40 21 102 232 102
SECTION 3: CLEARANCES TO C OMBUSTIBLES
(inches) (centimeters)
(inches) (centimeters)
FIGURE 6: 45° TILT REFLECTOR
(inches) (centimeters)
Model A B CDABCD
CTH2-40 8 8 51 46 21 21 130 117
CTH2-60 8 8 60 54 21 21 153 138
CTH2-80 8 8 66 60 21 21 168 153
CTH2-100 10 8 74 64 26 21 188 163
CTH2-125 10 8 78 69 26 21 199 176
CTH2-150 12 8 84 74 31 21 214 188
CTH2-175 12 8 85 79 31 21 216 201
5
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
A
C
D
B
B
C
D
A
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 7: U-TUBE, STANDARD REFLECTOR
Model A B CDABCD
CTH2-40
CTH2-60 6 35 63 30 16 89 161 77
CTH2-80 6 38 69 37 16 97 176 94
CTH2-100 6 40 76 39 16 102 194 100
CTH2-125 6 46 79 43 16 117 201 110
CTH2-150 6 50 84 47 16 127 214 120
CTH2-175 8 54 87 51 21 138 221 130
FIGURE 8: U-TUBE, 45°
Model A B CDABCD
(inches) (centimeters)
- UNAPPROVED -
- UNAPPROVED -
(inches) (centimeters)
CTH2-40
CTH2-60 8 8 60 42 21 21 153 107
CTH2-80 8 8 66 46 21 21 168 117
CTH2-100 8 8 74 52 21 21 188 133
CTH2-125 8 8 78 61 21 21 199 155
CTH2-150 8 8 84 66 21 21 214 168
CTH2-175 8 8 85 70 21 21 216 178
FIGURE 9: U-TUBE, OPPOSITE 45° REFLECTOR
Model A B CDABCD
CTH2-40
CTH2-60 8 54 60 22 21 138 153 56
CTH2-80 8 60 66 22 21 153 168 56
CTH2-100 10 64 74 22 26 163 188 56
CTH2-125 10 70 78 22 26 178 199 56
CTH2-150 12 74 84 22 31 188 214 56
6
CTH2-175 12 76 85 22 31 194 216 56
- UNAPPROVED - - UNAPPROVED -
(inches) (centimeters)
- UNAPPROVED - - UNAPPROVED -
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
A
C
D
B
A
C
D
B
Radiant Tubes
Vent
Pipes
Unvented
Vented
A
E
F
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 A B CDABCD
CTH2-40 6 27 53 27 16 69 135 69
CTH2-60 6 35 63 35 16 89 161 89
CTH2-80 6 38 66 38 16 97 168 97
CTH2-100 6 40 71 40 16 102 181 102
CTH2-125 6 46 77 46 16 117 196 117
CTH2-150 6 50 80 50 16 127 204 127
CTH2-175 8 52 82 52 21 133 209 133
FIGURE 11: LOWER CLEARANCE SHIELD*
(inches) (centimeters)
Model A B CDABCD
CTH2-40 6 34 27 34 16 87 69 87
CTH2-60 6 39 33 39 16 100 84 100
CTH2-80 6 40 38 40 16 102 97 102
CTH2-100 6 50 44 50 16 127 112 127
CTH2-125 6 54 48 54 16 138 122 138
CTH2-150 6 55 50 55 16 140 127 140
SECTION 3: CLEARANCES TO C OMBUSTIBLES
CTH2-175
*When installed in the first 10' (3 m).
FIGURE 12: VENTING
CTH2-40 14 18 18 36 46 46
CTH2-60141818364646
CTH2-80 20 24 18 51 61 46
CTH2-100 20 24 18 51 61 46
CTH2-125 20 24 18 51 61 46
CTH2-150 20 30 18 51 77 46
CTH2-175 20 30 18 51 77 46
- UNAPPROVED - - UNAPPROVED -
(inches) (centimeters)
Model A E F A E F
7
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
SECTION 4: NATIONAL STANDARDS AND
APPLICABLE CODES
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.
8
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).
SECTION 5: MAJOR COMPONENTS
Burner with Tube Gasket
Must be installed with the
flame observation
window facing down.
Reflector
(Aluminum or
Stainless
Steel)
Alternate overlap as
shown on overview and
on Page 15, Figure 16.
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.
Burner Tube
Supplied in 10'
(3 m) lengths. Burner
tube is always the first
tube after the burner.
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 19,
Section 6.4.
Vent Adapter
FIGURE 13: Major Component Descriptions
SECTION 5: MAJOR COMPONENTS
9
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
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) 1 1 1 1 1 1 1
02568200 Gasket (Burner to Burner Tube) 1 1 1 1 1 1 1
130100NA 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) 2 2 2 2 2 2 2
*91412200 Flexible Stainless Steel Gas Hose - 1/2" NPT (US Models Only) 1 1 1 1 1
*91412204 Flexible Stainless Steel Gas Hose - 3/4" NPT (US Models Only) - - - - - 1 1
03051503 Turbulator Adapter 1 1 1 1 - - -
03051504 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 39, Section 9
.
Table 2: Contents of 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 2312341234
02750303
Standard Reflector, 8' (3.5 m)
02750800 End Cap 2 222222- -------
03090100 Tube and Reflector Hanger 3 45234512341234
91907302 S-Hook 3 45234512341234
03050010 Reflector Support Package (Strap, Wire Form, Screws) 2 35123523462346
91107720 U-Clip Package 1 11111111111111
90502700 Vent Adapter 1 111111- -------
01318901 Tube Clamp Package 1 111111- -------
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
'
10
Part Number
CP20HRS
CP30HRS
CP40HRS
CP10ALUM
CP20ALUM
CP30ALUM
CP40ALUM
EXP10HRS
EXP20HRS
EXP30HRS
EXP40HRS
EXP10ALUM
EXP20ALUM
EXP30ALUM
EXP40ALUM
Table 3: Component Package Guide
SECTION 5: MAJOR COMPONENTS
Model
Tubi ng Length Core Packages
Minimum Standard Aluminized
CTH2-40 10’ (3m) - CP10ALUM
CTH2-60 20’ (6m) CP20HRS CP20ALUM
CTH2-80 20’ (6m) CP20HRS CP20ALUM
CTH2-100 30’ (9m) CP30HRS CP30ALUM
CTH2-125 40’ (12m) CP40HRS CP40ALUM
CTH2-150 50’ (15m) CP30HRS + EXP20HRS CP30ALUM + EXP20ALUM
CTH2-175 60’ (18m) CP30HRS + EXP30HRS 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.
11
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
WARNING
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.
SECTION 6: HEATER INSTALLATION
Typical installation configurations are shown in
Figure 14.
Expansion and contraction of the tube dictates that
the minimum suspension lengths in the table on
Page 13, Figure 14 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.
12
FIGURE 14: Critical Hanger Placement
Hanger
Side View
Must Be Within 4" (10 cm) Front View
S-hooks
Reflector
Hanger
45° Angle
* Allows for thermal expansion of system
Typical Suspension Details
Rod 3/8"
Beam Clamp
Concrete Beam
Wood Beam
Washers
Locknut
Screw Hook
3/8"
24" min.*
(61 cm)
X*
Anchor
S-hooks
Chain Size
3/16"
Minimum
Turnbuckle
Not Included
Description Part Number
S-Hook 91907302
Tube/Reflector Hanger 03090100
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)
SECTION 6: HEATER I NSTALLATION
13
CTH2-SERIES INSTALLATION, OPERAT ION AND SERVICE MANUAL
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)
FIGURE 15: Linear Heater Assembly Overview
14
FIGURE 16: Linear Heater Layout Overview
g
c
b
d
f
g
c
b
de
f
g
c
b
de
e
f
g
c
b
de
e e
f
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling
Assembly
Vent Adapter
LEGEND
a = 14" (36 cm)
reflector width (not shown)
b = 2" (5 cm)
end cap to burner
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
g = 17.5" (44 cm)
burner length
10' Tube Length
20' Tube Length
30' Tube Length
40' Tube Length
SECTION 6: HEATER I NSTALLATION
15
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