Roberts Gorden CTHN-200 User Manual
®
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 can catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
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.
Vantage
NP
Negative Pressure
Unitary or Multiburner
Infrared Heater
Installation,
Operation &
Service Manual
CTHN-40
CTHN-60
CTHN-80
CTHN-100
CTHN-125
CTHN-150
CTHN-175
CTHN-200
© 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 152101NA Rev B 04/09
TABLE OF CONTENTS
© 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.
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: Critical Considerations .....................................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: Heater Descriptions...........................................9
5.1 Unitary vs. Multiburner.................................................9
SECTION 6: Major Components.......................................... 10
SECTION 7: General Suspension Details ........................... 11
SECTION 8: Unitary Linear & U-Tube Heater Installation.. 13
8.1 Standard Parts...........................................................13
8.2 Unitary Heater Requirements ....................................16
8.3 Unitary Linear Heater Layouts ................................... 17
8.4 Unitary U-tube Heater Layouts ..................................20
8.5 Burner Tube Installation ............................................22
8.6 Tube Clamp Package Installation..............................22
8.7 Coupling and Tube Assembly....................................23
8.8 Turbulator Installation ................................................24
8.9 Reflector Installation ..................................................25
8.10 Burner Installation....................................................27
8.11 Fan Inlet Plate and Warning Tag............................. 27
8.12 Restrictor Plate Installation.....................................28
8.13 Fan Installation ........................................................ 28
SECTION 9: Multiburner Heater Installation....................... 29
9.1 Standard Parts...........................................................29
9.2 Multiburner System Design Requirements ................33
9.3 Burners Per Pump ..................................................... 34
9.4 Radiant Tube Length.................................................. 35
9.5 Manifold Tube ............................................................ 35
9.6 Multiburner System Layouts and Manifold Tube
Length Rules.............................................................. 35
9.7 Burner Tube Installation ............................................40
9.8 Tube Clamp Package Installation..............................40
9.9 Coupling and Tube Assembly....................................41
9.10 Turbulator Installation.............................................. 42
9.11 Reflector Installation................................................ 43
9.12 Burner Installation....................................................45
SECTION 10: Optional Heater Accessories........................ 46
10.1 Elbow Package Configuration ..................................46
10.2 Reflector Side Extension..........................................48
10.3 Lower Clearance Shield Installation.........................49
10.4 Two-Foot Decorative Grille Installation.....................50
10.5 Protective Grille Installation......................................52
SECTION 11: Venting - General............................................ 53
11.1 General Venting Requirements.................................53
SECTION 12: Venting - Unitary Heater ................................54
12.1 Unvented Operation .................................................54
12.2 Unvented Operation Termination ............................. 54
12.3 Horizontal Venting ................................................... 54
12.4 Vertical Venting........................................................ 54
12.5 Length Requirements .............................................. 54
12.6 Flue Connection Detail ............................................ 55
12.7 Horizontal Ventilation 4" (10 cm) Pipe ..................... 55
12.8 Vertical Ventilation 4" (10 cm) Pipe.......................... 56
12.9 Common Side Wall Venting ..................................... 56
12.10 Common Vertical Venting ..................................... 57
SECTION 13: Venting - Multiburner Systems ..................... 58
13.1 General Requirements............................................. 58
13.2 Manifold Tube Requirements ................................... 58
13.3 Venting the Pump .................................................... 58
13.4 EP-100 Pump Models .............................................. 59
13.5 EP-200 Pump Series ............................................... 59
13.6 EP-300 Pump Series ............................................... 59
13.7 Installation Precautions............................................ 59
SECTION 14: Outside Combustion Air Supply .................. 61
14.1 Length Requirements .............................................. 61
14.2 Vertical Non-Pressurized Outside Air Supply for
Single Heater Installation ......................................... 61
14.3 Horizontal Non-Pressurized Outside Air Supply for
Single Heater Installation ......................................... 61
14.4 Vertical Non-Pressurized Outside Air Supply for
Double Heater Installation........................................ 62
14.5 Horizontal Non-Pressurized Outside Air Supply for
Double Heater Installation........................................ 62
14.6 Pressurized Outside Air Supply ............................... 63
SECTION 15: Wiring.............................................................. 64
15.1 Internal Wiring ......................................................... 64
15.2 Internal Wiring ......................................................... 64
15.3 Ladder Diagram....................................................... 65
15.4 External Wiring (Unitary Heaters Only) ................... 65
15.5 Line Voltage Thermostat Wiring
(Unitary Heaters Only) ............................................ 66
15.6 Low Voltage Thermostat Wiring
(Unitary Heaters Only) ............................................ 66
15.7 System Control Methods and External Multiburner
Wiring...................................................................... 67
SECTION 16: Gas Piping.......................................................74
SECTION 17: Operation and Maintenance.......................... 76
17.1 Checking the Gas Line............................................. 76
17.2 Unitary Heater Sequence of Operation................... 76
17.3 Multiburner System Operation.................................. 77
17.4 Maintenance............................................................. 79
17.5 Maintenance Checklist ............................................. 79
SECTION 18: Troubleshooting............................................. 81
18.1 Troubleshooting Flow Chart - Unitary ...................... 82
18.2 Troubleshooting Flow Chart - Multiburner................ 86
18.3 Manifold Gas Pressure Setting ................................ 88
SECTION 19: Replacement Parts List................................. 89
SECTION 20: General Specifications.................................. 92
20.1 Material Specifications............................................. 92
20.2 Heater Specifications............................................... 92
20.3 Suspension Specifications ...................................... 92
20.4 Controls Specifications............................................ 92
SECTION 21: The ROBERTS GORDON
Limited Warranty ........................................... 95
®
VANTAGE® NP
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.............................. 10
Figure 14: Critical Hanger Placement ..................................... 12
Figure 15: Linear Heater Assembly Overview......................... 17
Figure 16: Unitary Linear Layout Overview............................. 18
Figure 17: Unitary Linear Layout Overview (Continued) ......... 19
Figure 18: U-tube Assembly Overview.................................... 20
Figure 19: Unitary U-tube Layout Overview ............................ 21
Figure 20: Typical CTHN Multiburner System Installation....... 33
Figure 21: Flag Layout ............................................................36
Figure 22: Modified In-Series Layout ......................................36
Figure 23: T Layout................................................................. 37
Figure 24: Fork Layout ............................................................ 38
Figure 25: Herringbone Layout ...............................................39
Figure 26: Reflector Joint Detail ..............................................48
Figure 27: Fan Termination .....................................................54
Figure 28: Tailpipe Connection Points..................................... 58
Figure 29: Roof Venting of Pump ............................................59
Figure 30: Side Wall Venting Configurations........................... 60
Figure 31: General System Control Wiring (Multiburner) ........67
Figure 32: External Wiring Diagram EP-100 and EP-201
120 V 1 Ø Pump (Multiburner) ...............................68
Figure 33: External Wiring Diagram EP-100, EP-201 and
EP-301 230 V 1 Ø Pump (Multiburner) .................. 69
Figure 34: External Wiring Diagram EP-203 or EP-303
208 - 230 V (or 460 V) 3 Ø Pump (Multiburner)..... 70
Figure 35: One Zone Operation without Control Panel
(Multiburner) ..........................................................72
Figure 36: Two Zone Operation without Control Panel
(Multibu
Figure 37: Gas Connection with Flexible Gas Hose ...............75
Figure 38: Vacuum Differential Reading..................................78
rner) ..........................................................73
LIST OF TABLES
Table 1: Contents of CTHN Burner Carton .............................13
Table 2: Contents of Core and Extension Packages ..............14
Table 3: Component Package Guide ......................................14
Table 4: Common CTHN-Series Components........................15
Table 5: Unitary Heater Design Requirements .......................16
Table 6: Contents of CTHN Burner Carton .............................29
Table 7: Contents of Core and Extension Packages ..............30
Table 8: Component Package Guide ......................................30
Table 9: Common CTHN-Series Components........................31
Table 10: Multiburner Design Requirements...........................34
Table 11: Nu mber of Burners Allowed Per Pump ...................34
SECTION 1: HEATER S AFETY
Logo Label
Rating Plate Label
Bottom
Panel
Top Panel
Gas Connection Label
Description Part Number
Logo Label 91013213
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,
including the aluminum reflector and the various
FIGURE 1: Top and Bottom Panel Label Placement
venting components, have sharp edges. To prevent
injury, the use of work
gloves is recommended. The use of gloves will also
prevent the transfer of body oils from the hands to the
surface of the reflector.
Before installation, check that the local distribu
tion
conditions, nature of gas and pressure, and
adjustment 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 prevent 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 1, Figure 1
through Page 2, Figure 2.
1
CTHN-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Clearances to Combustibles Label
Control Side Panel
Control Side Panel (Inside) Wiring Label
Description Part Number
Clearances to Combustibles Label 91013419
Wiring Label 91015601
Vent Length Label 91039500
Thermostat Connection Label 91037902
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 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 requirements.
• To furnish all needed materials not furnished as
standard equipment.
• To plan location of supports.
• To provide access to burners on all sides for
burner servicing and removal.
• To provide the owner with a copy of this
Installation, Operation and Service Manual.
• To never use heater as a support for a ladder or
other access equipment and never hang or
suspend anything from heater.
• To ensure there is adequate air circulation around
the heater and to supply air for combustion,
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 an 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 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.
SECTION 2: INSTALLER R ESPONSIBILITY
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.
3
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