Roberts Gorden BH-100, BH-80, BH-150, BH-140, BH-125, BH-40, BH-60, BH-115, BH-175, BH-200 User Manual
Specifications and Main Features
Frequently Asked Questions
User Manual
FOR YOUR SAFETY
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.
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.
WARNING
GordonRay®BH
The Economical Unitary
Infrared Heater
Installation, Operation &
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.
Failure to follow these instructions can
result in death, injury or property
damage.
BH-40
BH-60
BH-80
BH-100
BH-115
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.
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.
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, such
as the reflector portion of the heater and the various 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 local distribution
conditions, nature of gas and pressure, and
adjustment of the appliance are compatible.
This heater must be applied and operated under the
general concepts of reasonable use and installed
using best building practices.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety. Children should
be supervised to ensure that they do no play with the
appliance.
For additional copies of the Installation, Operation
and Service Manual, please contact Roberts-Gordon
LLC.
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 2, Figure 1through Page 3, Figure 2.
1.3 California Proposition 65
In accordance with California Proposition 65
requirements, 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 3, Figure 2 for label
location. Avoid placing label on areas with extreme
heat, cold, corrosive chemicals or other elements. To
order additional labels, please contact RobertsGordon LLC or your ROBERTS GORDON
®
independent distributor.
1. 1 M a np ow e r R equirements
To p r e vent personal injury and damage to the heater,
two persons will be required for installation.
1 of 59
BH-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
DescriptionPart Number
Logo Label91031100
Vent Length Label91039500
Gas Connection Label91018123
BH-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
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 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.
• To furnish all needed materials not furnished as
standard equipment.
• To plan location of supports.
• To provide access 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 su
pply 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 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
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 6, Figure 3 through Page 9, 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 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
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 p
ublic garages, aircraft hangars,
etc. may be applicable.
4 of 59
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
combustible 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 clearances to combustibles at all times
for safety.
Clearances for all heater models are located on the
burner of the heater and on Page 6, Figure 3 through Page 9, Figure 12 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 (50° C) above
room temperature. Building materials with a low
heat tolerance (su
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
ch as plastics, vinyl siding,
on Page 15, Figure 14.
SECTION 3: CLEARANCESTO COMBUSTIBLES
• 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.
5 of 59
BH-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
C
BD
A
C
BD
A
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.
FIGURE 3: Standard Reflector
Model ABCDABCD
BH-406275227166913369
BH-606356235168915889
BH-806386538169716697
BH-100640704016102178102
BH-115/125646764616117194117
BH-140/150650795016127201127
BH-175/200852825221133209133
FIGURE 4: One Side Reflector
Model ABCDABCD
BH-406952441623133112
BH-606 9 62471623158120
BH-806969541623176138
BH-1006976591623194150
BH-115/1256982651623209166
BH-140/1506985691623216176
BH-175/2008988732123224186
(inches)(centimeters)
(inches)(centimeters)
FIGURE 5: Two Side Reflectors
6 of 59
(inches)(centimeters)
Model ABCDABCD
BH-406155215163913339
BH-606236523165916659
BH-806257125166418164
BH-1006 277727166919669
BH-115/1256328332168221182
BH-140/1506358735168922189
BH-175/200840914021102232102
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
B
D
C
A
C
D
B
A
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 6: 45° Tilt Reflector
Model ABCDABCD
BH-408850462121127117
BH-608 8 59542121150138
BH-808865602121166153
BH-10010873642621186163
BH-115/12510877692621196176
BH-140/15012883743121211188
BH-175/20012885793121216201
FIGURE 7: U-Tube, Standard Reflector
Model ABCDABCD
BH-40
BH-606356230168915877
BH-806386837169717394
BH-100640753916102191100
BH-115/125646784316117199110
BH-140/150650834716127211120
BH-175/200854875121138221130
SECTION 3: CLEARANCESTO COMBUSTIBLES
(inches)(centimeters)
(inches)(centimeters)
- UNAPPROVED -- UNAPPROVED -
FIGURE 8: U-Tube, 45°
(inches)(centimeters)
Model ABCDABCD
BH-40
BH-608 8 59422121150107
BH-808865462121166117
BH-1008873522121186133
BH-115/1258877612121196155
BH-140/1508883662121211168
BH-175/2008885702121216178
- UNAPPROVED -- UNAPPROVED -
7 of 59
BH-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
B
A
C
D
C
BD
A
C
BD
A
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 9: U-Tube, Opposite 45° Reflector
Model ABCDABCD
BH-40
BH-6085459222113815056
BH-8086065222115316656
BH-100106473222616318656
BH-115/125107077222617819656
BH-140/150127483223118821156
BH-175/200127685223119421656
- UNAPPROVED -- UNAPPROVED -
FIGURE 10: 2-Foot Deco Grille and Protective Grille
Model ABCDABCD
BH-406275227166913369
BH-606356235168915889
BH-806386538169716697
BH-100640704016102178102
BH-115/125646764616117194117
BH-140/150650795016127201127
BH-175/200852825221133209133
(inches)(centimeters)
(inches)(centimeters)
FIGURE 11: Lower Clearance Shield*
*When installed in the first 10' (3 m).
8 of 59
(inches)(centimeters)
Model ABCDABCD
BH-40634273416876987
BH-6063933391610084100
BH-8064038401610297102
BH-100650445016127112127
BH-115/125654485416138122138
BH-140/150655505516140127140
BH-175/200
- UNAPPROVED -- UNAPPROVED -
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
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 12: Venting
SECTION 3: CLEARANCESTO COMBUSTIBLES
(inches)(centimeters)
ModelAEFAEF
BH-40141818364646
BH-60141818364646
BH-80202418516146
BH-100202418516146
BH-115/125202418516146
BH-140/150203018517746
BH-175/200203018517746
9 of 59
BH-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.
®
,
10 of 59
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 17, 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
BH-125/150/175/200. For
installation, see Page 21, Step 6.4
Vent Adapter
FIGURE 13: Major Component Descriptions
SECTION 5: MAJOR COMPONENTS
11 o f 59
BH-SERIES INSTALLATION, OPERATIONAND SERVICE MANUAL
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.
13 of 59
BH-SERIES INSTALLATION, OPERATIONAND 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 6: HEATER INSTALLATION
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.
Expansion and contraction of the tube dictates that
the minimum suspension lengths must be
maintained. See tableon Page 15, Figure 14.
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 it 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.
Typical installation configurations are shown on Page 15, Figure 14.