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 can catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
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.
using Assembly ........................................41
LIST OF TABLES
Table 1: Contents of CRV-Series Burner Carton.................... 12
Table 2: Common CRV-Series Components .......................... 12
SECTION 1: HEATER SAFETY
Control Side Panel
Rating Plate Label
Logo Label
Clearances to Combustibles LabelControl Side Panel (inside)
Filter Side Panel (inside)
Wiring Label
Internal Ladder Diagram Label
DescriptionPart Number
Logo Label91007901
Rating Plate Label91010401
Clearances to Combustibles Label91009101
Internal Ladder Diagram Label91017301
Wiring Label91017300
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, the
aluminum reflector portion of the heater and the
various venting components, have sharp edges. To
FIGURE 1: Side Panel Label Placement
SECTION 1: HEATER S AFETY
prev
ent 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
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 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 LLC or your
ROBERTS GORDON
®
independent distributor to
obtain replacement signs or labels. See Page 1, Figure 1through Page 2, Figure 2.
1
CRV-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
Top PanelGas Connection Label
Back
Panel
Burner Box
Combination Label
DescriptionPart Number
Gas Connection Label91018125
Burner Box Combination Label91029600
FIGURE 2: Top and Back Panel Label Placement
2
SECTION 2: INSTALLER RESPONSIBILITY
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.
The installer is responsible for the following:
• To ensure the system is designed in accordance
with the parameters of the CRV-Series
Manual (P/N 127500NA).
• To install the heater, as well as the gas and
electrical supplies, in accordance with applicable
specifications and codes. Roberts-Gordon LLC
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
servicing or burner removal.
• To provide the owner with a copy of this
Installation, Operation and Service Manual.
• To never use heater as a support for ladder or
other access equipment and to never hang or
suspend anything from heater.
• To ensure there is adequate air circulation arou
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 lb
(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 LLC
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
CRV-Series heater (e.g. thermostat or 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 7, Figure 11. Write the proper clearance dimensions
in permanent ink according to your model number
and configuration in the open spaces on the tag.
Design
SECTION 2: INSTALLER R ESPONSIBILITY
2.2 Corrosive Chemicals
Roberts-Gordon LLC 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
nd
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 m
ust 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
CRV-SERIES INSTALLATION, OPERATIONAND 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
combustible objects must be away from the heater to
prevent serious fire hazards. Combustibles are
materials that may catch fire and include common
items such as wood, paper, rubber, fabric, etc.
Maintain clearances 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 7, Figure 11 in this manual. Check the
clearances 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,
tri-ply, etc) may be subject to degradation at lower
temperatures. It is the installer’s responsibility to
assure that adjacent materials are protected from
degradation.
• 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.
• 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
suspension requirements on Page 17, Figure 14.
• If the radiant tubes must pass through the building
structu
re, be sure that adequate sleeving and fire
stop is installed to prevent scorching and/or fire
hazard.
4
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, elbows, tees and crosses.
B
C
D
A
A
B
C
D
A
B
C
D
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from
where the combustion chamber and the tube connect.
FIGURE 3: STANDARD REFLECTOR
ModelABCDABCD
CRV-B-24204820115112251
CRV-B-44204820115112251
CRV-B-64204820115112251
CRV-B-84204820115112251
CRV-B-94366036119215392
CRV-B-10 4 366036119215392
CRV-B-124366036119215392
CRV-B-12A4366036119215392
.
FIGURE 4: ONE SIDE REFLECTOR
ModelABCDABCD
CRV-B-24125620113114351
CRV-B-44125620113114351
CRV-B-64125620113114351
CRV-B-84125620113114351
CRV-B-941260421131153107
CRV-B-1041260421131153107
CRV-B-1241260421131153107
CRV-B-12A41260421131153107
SECTION 3: CLEARANCESTO C OMBUSTIBLES
(inches)(centimeters)
(inches)(centimeters)
FIGURE 5: TWO SIDE REFLECTORS
(inches)(centimeters)
ModelABCDABCD
CRV-B-24125612113114331
CRV-B-44125612113114331
CRV-B-64125612113114331
CRV-B-84125612113114331
CRV-B-94126012113115331
CRV-B-104126012113115331
CRV-B-124126012113115331
CRV-B-12A4126012113115331
5
CRV-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
C
A
B
D
C
A
B
D
C
A
B
D
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, elbows, tees and crosses.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from
where the combustion chamber and the tube connect.
FIGURE 6: UNIVERSAL SHIELD, POSITION 1
ModelABCDABCD
CRV-B-2412121211313131
CRV-B-4412121211313131
CRV-B-6412121211313131
CRV-B-8412121211313131
CRV-B-9818241821466146
CRV-B-10 8 18241821466146
CRV-B-12818241821466146
CRV-B-12A818241821466146
(inches)(centimeters)
FIGURE 7: UNIVERSAL SHIELD, POSITION 2
(inches)(centimeters)
ModelABCDABCD
CRV-B-24244824116112261
CRV-B-44244824116112261
CRV-B-64244824116112261
CRV-B-84244824116112261
CRV-B-94364836119212292
CRV-B-104364836119212292
CRV-B-124364836119212292
CRV-B-12A4364836119212292
FIGURE 8: UNIVERSAL SHIELD, POSITION 3
(inches)(centimeters)
ModelABCDABCD
CRV-B-24125630113114377
CRV-B-44125630113114377
CRV-B-64125630113114377
CRV-B-84125630113114377
CRV-B-981260422131153107
CRV-B-1081260422131153107
CRV-B-1281260422131153107
CRV-B-12A81260422131153107
6
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, elbows, tees and crosses.
A
B
C
D
C
A
B
D
A
B
C
D
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from
where the combustion chamber and the tube connect.
FIGURE 9: 2-FOOT DECO GRILLE
ModelABCDABCD
CRV-B-24124812113112231
CRV-B-44124812113112231
CRV-B-64124812113112231
CRV-B-84124812113112231
CRV-B-94185618114614346
CRV-B-104185618114614346
CRV-B-124185618114614346
CRV-B-12A4185618114614346
SECTION 3: CLEARANCESTO C OMBUSTIBLES
(inches)(centimeters)
FIGURE 10: BARRIER SHIELD
(inches)(centimeters)
ModelABCDABCD
CRV-B-2412121211313131
CRV-B-4412121211313131
CRV-B-6412121211313131
CRV-B-8412121211313131
CRV-B-9- UNAPPROVED -- UNAPPROVED -
CRV-B-10- UNAPPROVED -- UNAPPROVED -
CRV-B-12- UNAPPROVED -- UNAPPROVED -
CRV-B-12A- UNAPPROVED -- UNAPPROVED -
FIGURE 11: PROTECTIVE GRILLE
(inches)(centimeters)
ModelABCDABCD
CRV-B-24204820115112251
CRV-B-44204820115112251
CRV-B-64204820115112251
CRV-B-84204820115112251
CRV-B-94366036119215392
CRV-B-104366036119215392
CRV-B-124366036119215392
CRV-B-12A4366036119215392
7
CRV-SERIES INSTALLATION, OPERATIONAND 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
Tube
Hot rolled, heat treated or
coated aluminized tube
supplied in 10' (3 m) lengths.
45° Elbow
90° Elbow
End Vent
Coupling Assembly
with Lock
Flex Gas Line
with shut-off cock
Combustion Chamber
Tee
Reflector
(Aluminum or
Stainless Steel)
Alternate overlap as
shown on Page 22, Section 7.4.3. Minimum
overlap is 6" (16 cm).
Reflector with Hole
(Aluminum or
Stainless Steel)
Alternate overlap as
shown on Page 22, Section 7.4.3. Minimum
overlap is 6" (16 cm).
Tube Adapter
Cross
SECTION 5: MAJOR COMPONENTS
The figures in this section provide a general overview
of component placement in a CRV-Series system.
The location of some components such as supports
and couplings is crucial for proper installation.
Assemble the heater components as shown on Page 15, Figure 13.
FIGURE 12: Major Component Descriptions
Optional reflector configurations are shown on Page
5, Figure 3 through Page 7, Figure 11. Install
appropriate suspension hardware, beam clamps,
chain or rod at predetermined locations. Adjustments
of chain length will provide uniform pitch.
9
CRV-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
Universal Shield with Holes
Reflector Joint
Reflector Side
Extension Bracket
Barrier Shield
Reflector Side Extension
Condensate
Valve
Assembly
Reflector End Cap
(Aluminum or Stainless
Steel)
Punch out center section to
accommodate tube.
S-Hook
Deco Grille
Turn b uc kl e
Protective Grille
Universal Shield
Tube and Reflector Hanger
with Clamp Package
Position this hanger no more
than 4" (10 cm) away from the
burner.
Tube and Reflector Hanger
Suspend system from these
hangers.
Reflector Support Strap &
Wire Form
Bracket Assembly
FIGURE 10: Major Component Descriptions (Continued)
10
FIGURE 10: Major Component Descriptions (Continued)
91409300Tube, Hot Rolled Steel 4" (10 cm) dia 10' (3 m)
91409403Tube, Non-Heat Treated Aluminized 4" (10 cm)
dia 10' (3 m)
91409408Tube, Heat Treated Aluminized 4" (10 cm) dia 10' (3 m)
91409420Tube, Non-Heat Treated Aluminized 6" (15 cm)
dia 10' (3 m)
9141030DTube, Coated 4" (10 cm) dia 10' (3 m)
E0009105Tube, Heat Treated Aluminized 6" (15 cm) dia 10' (3 m)
Part No.Description
91418200Tube Adapter, Aluminized
6" (15 cm) dia x 4" (10 cm) dia
02722100Adapter, 4" (10 cm) Cast Iron
91240010Tube Hanger, 6" (15 cm)
91308001High Temperature Pipe Compound, 1lb. can
Part No.Description
Venting Accessories
01324401Outside Air Supply Takeoff, 4" (10 cm)
01326801Outside Air Filter Housing
90707501Air Supply Blower/Power Venter
91409601Outside Air Flex Duct, 4" (10 cm)
(Box of 8 - 8' [2.4 m] sections)
Part No.Description
Reflectors and Related Accessories
01329910Reflector Side Extension Support
03050010Reflector Support Package (Tubing)
02712700Reflector Side Extension, 2 Clips, 2 Screws
02716400Reflector Support Package (Schedule 40 Pipe)
02750303Reflector, Aluminum
027503SSReflector, Stainless Steel
02750304Reflector, Aluminum with Hole
027503SHReflector, Stainless Steel with Hole
02750800Reflector End Cap, Aluminum
027508SSReflector End Cap, Stainless Steel
027508SHReflector End Cap, Stainless Steel with Hole
02750900Reflector Joint
027509SSReflector Joint, Stainless Steel
027127SSReflector Side Extension, Stainless Steel
03090100Tube and Reflector Hanger
02790300Tube and Reflector Hanger, Cast Iron
91907302S-Hook
91903201Turnbuckle
91903300Spring Hook
91903202Turnbuckle with Eyebolt
02712100Universal Shield Support
02751800Universal Shield with Holes
02751801Universal Shield
027518SSUniversal Shield, Stainless Steel
Part No.Description
Control Packages and Accessories
10001501Water Resistant Sensor
02770002System Control
10080142Modem, Plug-In Chip
10080410Cable Package, PC Connection
10080430RS-485 Converter with 9V Power Supply
10080440TCP/IP Communication Module
10081500
05023000Load Relay Package
90417600Transformer Relay - SPST (12 A)
90436300Transformer Relay - DPST (12 A)
9042300024 V Low Voltage Thermostat (Marked 1-5)
90424300Thermostat Guard
Part No.Description
Deco Grille (2' x 4' [.6 m x 1.2 m])
01365900Shield Frame
01370408Reflector Side Extension 8" x 48" (20.3 cm x 122 cm)
01370412Reflector Side Extension 12" x 48" (30.5 cm x 122 cm)
01370416Reflector Side Extension 16" x 48" (40.6 cm 122 cm)
91407000Grille, Aluminum 2' x 4' (.6 m x 1.2 m)
Part No.Description
Protective Grille
08050001Protective Grille, 40" (1 m)
08050002Protective Grille End Cap
There are references in this manual to various trademarks. All
trademarks mentioned herein, whether registered or not, are the
property of their respective owners. Roberts-Gordon is not
sponsored by or affiliated with any of the trademark or registered
trademark owners, and make no representations about them,
their owners, their products or services.
Roberts-Gordon LLC is not sponsored by or affiliated with
BACnet®.
13
CRV-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
SECTION 6: DESIGN REQUIREMENTS
The CRV-Series system’s design is related to the
system operation and performance required by the
building being heated. Every effort should be made
to follow the dimensions on the layout drawing. If
deviations are necessary, either contact the
company responsible for the layout design, your
ROBERTS GORDON
®
independent distributor,
or consult the CRV-Series Design Manual
(P/N 127500NA).
14
FIGURE 13: Heater Assembly Overview
End
Vent
Combustion
Chamber
Tu be &
Reflector
Hanger
Burner
Reflector
Tu be
Coupling
Reflector
End Cap
Reflector
Support
Flexible
Boot
Reflector
with Hole
Pump
Exhaust
to Outside
Pressure Switch
S
Zone 1 Sensor or Thermostat**
Relay*
System Control
or ROBERTS GORDON
®
ULTRAVAC
™
Controller
U-Clips
* May not be needed with certain pumps and controllers. Refer to wiring diagram in the appropriate
controller's Installation, Operation and Service Manual for details.
**System Control requires thermostats. ROBERTS GORDON
®
ULTRAVAC
™
requires zone sensors
and additional control equipment. See the appropriate controller installation manual for details.