Rapid Engineering BH-40 Manual

WARNING
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to li ht any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in
your buildin .
5. Leave the buildin .
6. Immediately call your local as
supplier after leavin the buildin .
Follow the as suppliers
instructions.
7. If you cannot reach your as
supplier, call the Fire Department.
Fire Hazard
Do not store or use asoline 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
dama e.
WARNING
Installation must be done by a contractor qualified
in the installation and service of as-fired heatin
equipment or your as supplier.
Improper installation, adjustment, alteration, service
or maintenance can result in death, injury or property
dama e. Read the Installation, Operation and Service
Manual thorou hly before installin or servicin
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.
Rapid Engineering
1100 Seven Mile Road, NW
Comstock Park, MI 49321
Telephone: [phone]
Fax: [phone]
Toll Free: 800.536.3461
www.rapidengineering.com
© Copyright 2005 Roberts-Gordon P/N RPBH70101NA Orig 11/05
™
The Economical Unitary
Infrared Heater
Installation, Operation &
Service Manual
BH-40
BH-60
BH-80
BH-100
BH-115
BH-125
BH-140
BH-150
BH-175
BH-200

© 2005
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.
TABLE OF CONTENTS
SECTION 1: Heater Safety...................................................... 1
1.1 Manpower Requirements ............................................. 1
SECTION 2: Installer Responsibility ..................................... 2
2.1 Wall Tag ....................................................................... 2
2.2 Corrosive Chemicals.................................................... 2
2.3 National Standards and Applicable Codes .................. 2
SECTION 3: Critical Considerations...................................... 3
3.1 Required Clearances to Combustibles......................... 3
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 ............................................ 15
6.2 Tube Clamp Package Installation .............................. 16
6.3 Coupling and Tube Assembly.................................... 16
6.4 Turbulator Installation ................................................ 18
6.5 Reflector Installation .................................................. 18
6.6 Burner Installation...................................................... 20
SECTION 7: Optional Heater Accessories.......................... 21
7.1 U-Tube Configuration.................................................. 21
7.2 Elbow Package Configuration..................................... 23
7.3 Reflector Side Extension ............................................ 26
7.4 Lower Clearance Shield Installation ........................... 27
7.5 Two-Foot Decorative Grille Installation ....................... 27
7.6 One-Foot Decorative Grille Installation....................... 29
7.7 Protective Grille Installation ........................................ 31
SECTION 8: Venting.............................................................. 32
8.1 Venting....................................................................... 32
8.2 Unvented Operation................................................... 32
8.3 Horizontal Venting...................................................... 32
8.4 Vertical Venting .......................................................... 33
8.5 Unvented Operation Tube Termination ...................... 33
8.6 Length Requirements ................................................ 33
8.7 Horizontal Ventilation 4 in (10 cm) Pipe ..................... 34
8.8 Vertical Ventilation 4 in (10 cm) Pipe .........................34
8.9 Common Side Wall Venting ....................................... 35
8.10 Common Vertical Venting ........................................ 36
8.11 Outside Combustion Air Supply ............................... 37
SECTION 9: Gas Piping........................................................ 39
SECTION 10: Wiring.............................................................. 40
10.1 Line Voltage Thermostat Wiring............................... 40
10.2 Low Voltage Thermostat Wiring............................... 41
10.3 Internal Wiring.......................................................... 41
10.4 Ladder Diagram....................................................... 42
10.5 Electrical Connection to the Burner ......................... 43
SECTION 11: Operation and Maintenance.......................... 44
11.1 Sequence of Operation ............................................ 44
11.2 To Shut Off Heater.................................................... 44
11.3 To Start Heater ......................................................... 44
11.4 Pre-Season Maintenance and Annual Inspection..... 44
11.5 Maintenance Checklist ............................................. 45
SECTION 12: Troubleshooting............................................. 47
12.1 Troubleshooting Flow Chart ..................................... 47
12.2 Manifold Gas Pressure Setting ................................ 49
SECTION 13: Replacement Parts ........................................ 50
SECTION 14: General Specifications .................................. 52
14.1 Material Specification............................................... 52
14.2 Heater Specifications............................................... 52
14.3 Suspension Specifications....................................... 52
14.4 Controls Specifications ............................................ 52
SECTION 15: The RAPID™ BH Warranty ............................. 53
Printed in U.S.A.

TABLE OF FIGURES
Figure 1: Standard Reflector ..................................................... 4
Figure 2: One Side Reflector..................................................... 4
Figure 3: Two Side Reflectors ................................................... 4
Figure 4: 45° Tilt Reflector ........................................................ 5
Figure 5: U-Tube, Standard Reflector........................................ 5
Figure 6: U-Tube, 45°................................................................ 5
Figure 7: U-Tube, Opposite 45° Reflector ................................. 6
Figure 8: 2-Foot Deco Grille, 1-Foot Deco Grille and
Protective Grille .......................................................... 6
Figure 9: Lower Clearance Shield............................................. 6
Figure 10: Venting ..................................................................... 7
Figure 11: Major Component Descriptions ................................ 9
Figure 12: Critical Hanger Placement ..................................... 12
Figure 13: Linear Heater Assembly Overview ........................ 13
Figure 14: Linear Heater Layout Overview ............................. 14
Figure 15: Linear Heater Layout Overview (Continued) .......... 15
Figure 16: U-Tube Heater Assembly Overview ...................... 21
Figure 17: U-Tube Heater Layout Overviews ......................... 22
Figure 18: U-Tube Layout Overviews (Continued) ..................23
Figure 19: Reflector Joint Detail .............................................. 25
Figure 20: Tube Termination ................................................... 33
Figure 21: Gas Connection with Flexible Gas Hose................ 39

SECTION 1: HEATER SAFETY
1
SECTION 1: HEATER SAFETY
Your 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.
Thin sheet metal parts, the aluminum 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 the local distribution
conditions, nature of gas and pressure, and
adjustment of the appliance are compatible.
1.1 Manpower Requirements
To prevent personal injury and damage to the heater,
two persons will be required for installation.

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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. Rapid Engineering
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 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).
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 Rapid Engineering or
your RAPID™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).
A copy of the wall tag (P/N 91037920) 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 1 through Page
7, Figure 10. 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
Rapid Engineering 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.
CAUTION
Do not use heater in an area containing corrosive
chemicals.
Avoid the use of corrosive chemicals to ensure a
longer life of the burner, tubing and other parts.
ailure to follow these instructions can result in
property damage.

SECTION 3: CRITICAL CONSIDERATIONS
3
SECTION 3: CRITICAL CONSIDERATIONS
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 4, Figure 1 through
Page 7, Figure 10 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.
• Maintain clearances from heat sensitive material,
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 12, Figure 12.
• 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.
WARNING
Fire Hazard
Some objects will catch fire or explode when placed
close to heater.
Keep all flammable objects, liquids and vapours the
required distance away from the heater.
Failure to follow these instructions can result in death,
injury or property damage.

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
4
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 1: Standard Reflector
(inches) (centimeters)
Model ABCDABCD
BH-40 6 27 52 27 16 69 133 69
BH-60 6 35 62 35 16 89 158 89
BH-80 6 38 65 38 16 97 166 97
BH-100 6 40704016102178102
BH-115/125 646 76 46 16 117 194 117
BH-140/150 6 50 79 50 16 127 201 127
BH-175/200 852 82 52 21 133 209 133
C
BD
A
FIGURE 2: One Side Reflector
(inches) (centimeters)
Model ABCDABCD
BH-40 6 9 52 44 16 23 133 112
BH-60 6 9 62471623158120
BH-80 6 9 69 54 16 23 176 138
BH-100 6 9 76 59 16 23 194 150
BH-115/125 6 9 82 65 16 23 209 166
BH-140/150 6 9 85 69 16 23 216 176
BH-175/200 8 9 88 73 21 23 224 186
C
BD
A
FIGURE 3: Two Side Reflectors
(inches) (centimeters)
Model ABCDABCD
BH-40 6 15 52 15 16 39 133 39
BH-60 6 23 65 23 16 59 166 59
BH-80 6 25 71 25 16 64 181 64
BH-100 6 277727166919669
BH-115/125 632 83 32 16 82 211 82
BH-140/150 6 358735168922189
BH-175/200 840 91 40 21 102 232 102
C
BD
A

SECTION 3: CRITICAL CONSIDERATIONS
5
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.
FIGURE 4: 45° Tilt Reflector
(inches) (centimeters)
Model ABCDABCD
BH-40 8 8 50 46 21 21 127 117
BH-60 8 8 59542121150138
BH-80 8 8 65 60 21 21 166 153
BH-100 10 8 73 64 26 21 186 163
BH-115/125 10 877 69 26 21 196 176
BH-140/150 12 8 83 74 31 21 211 188
BH-175/200 12 885 79 31 21 216 201
C
BD
A
FIGURE 5: U-Tube, Standard Reflector
(inches) (centimeters)
Model ABCDABCD
BH-40 - UNAPPROVED - - UNAPPROVED -
BH-60 6 35 62 30 16 89 158 77
BH-80 638 68 37 16 97 173 94
BH-100 6 40753916102191100
BH-115/125 646 78 43 16 117 199 110
BH-140/150 6 50 83 47 16 127 211 120
BH-175/200 854 87 51 21 138 221 130
BD
C
A
FIGURE 6: U-Tube, 45°
(inches) (centimeters)
Model ABCDABCD
BH-40 - UNAPPROVED - - UNAPPROVED -
BH-60 8 8 59422121150107
BH-80 8 8 65 46 21 21 166 117
BH-100 8 8 73 52 21 21 186 133
BH-115/125 8 8 77 61 21 21 196 155
BH-140/150 8 8 83 66 21 21 211 168
BH-175/200 8 8 85 70 21 21 216 178
C
D
B
A

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
6
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.
*When installed in the first 20’ (6 m).
FIGURE 7: U-Tube, Opposite 45° Reflector
(inches) (centimeters)
Model ABCDABCD
BH-40 - UNAPPROVED - - UNAPPROVED -
BH-60 8 54 59 22 21 138 150 56
BH-80 8 60 65 22 21 153 166 56
BH-100 10 64 73 22 26 163 186 56
BH-115/125 10 70 77 22 26 178 196 56
BH-140/150 12 74 83 22 31 188 211 56
BH-175/200 12 76 85 22 31 194 216 56
B
A
CD
FIGURE 8: 2-Foot Deco Grille, 1-Foot Deco Grille and Protective Grille
(inches) (centimeters)
Model ABCDABCD
BH-40 6 27 52 27 16 69 133 69
BH-60 6 35 62 35 16 89 158 89
BH-80 6 38 65 38 16 97 166 97
BH-100 6 40704016102178102
BH-115/125 646 76 46 16 117 194 117
BH-140/150 6 50 79 50 16 127 201 127
BH-175/200 852 82 52 21 133 209 133
C
BD
A
FIGURE 9: Lower Clearance Shield*
(inches) (centimeters)
Model ABCDABCD
BH-40 6 34 27 34 16 87 69 87
BH-60 6 39 33 39 16 100 84 100
BH-80 6 40 38 40 16 102 97 102
BH-100 6 50445016127112127
BH-115/125 654 48 54 16 138 122 138
BH-140/150 6 55 50 55 16 140 127 140
BH-175/200 - UNAPPROVED - - UNAPPROVED -
C
BD
A

SECTION 3: CRITICAL CONSIDERATIONS
7
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.
FIGURE 10: Venting
(inches) (centimeters)
Model A E F A E F
BH-40 14 18 18 36 46 46
BH-60 14 18 18 36 46 46
BH-80 20 24 18 51 61 46
BH-100 20 24 18 51 61 46
BH-115/125 20 24 18 51 61 46
BH-140/150 20 30 18 51 77 46
BH-175/200 20 30 18 51 77 46
Radiant Tubes
Vent
Pipes
Unvented
Vented
AE
F

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
8
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,
ANSI Z223.1 - latest revision (same as NFPA 54).
Canada: Refer to CAN/CGA B149.1 and B149.2:
Installation Codes for Gas Burning Appliances.
4.2 Aircraft Hangars
Installation in aircraft hangars must be in
accordance with the following codes:
United States: Refer to Standard for Aircraft
Hangars, ANSI/NFPA 409 - latest revision.
Canada: Refer to Standard CAN/CGA B149.1
and B149.2.
• 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: 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
CAN/CGA B149.1 and B149.2: Installation
Codes for Gas Burning Appliances.
• 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®, ANSI/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 NFPA 54/ANSI Z223.1 -
latest revision, National Fuel Gas Code.
Canada: Refer to CAN/CGA B149.1 and B149.2:
Installation Codes for Gas Burning Appliances.
4.6 High Altitude
These heaters are approved for installations up
to 2000 ft (US), 4500 ft (Canada) without
modification. Consult factory if US installation is
above 2000 ft (610 m) or Canadian installation
is above 4500 ft (1370 m).

SECTION 5: MAJOR COMPONENTS
9
SECTION 5: MAJOR COMPONENTS
FIGURE 11: Major Component Descriptions
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 14,
Figure 14. 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 heat exchanger
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 18, Step 6.4
Vent Adapter

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
10
5.1 Standard Parts List
*Canadian models: Rubber (Type 1) Gas Hoses available as an accessory. See Page 39.
Table 1: Contents of Burner Carton
Part No. Description BH-40 BH-60 BH-80 BH-100 BH-115 BH-125 BH-140 BH-150 BH-175 BH-200
RP71XXXXXBurner(RateandFuelVaries) 1111111111
90709700 Blower Assembly with Cord 1 1 1 1111111
02568200 Gasket (Burner to Burner Tube) 1 1 1 1111111
90709801 Gasket (Blower to Burner) 1 1 1 1111111
RPBH70101NAInstallation,OperationandServiceManual 1111111111
91201708 Pipe Nipple (Black) 1/2” NPT x 4” 1 1 1 1111111
94273914 Hex Head Bolts 5/16 - 18 Rolok 4 4 4 4444444
96411600 Split Lock washer 4 4 4 4444444
*91412200 Flexible Stainless Steel Gas Hose, 1/2” NPT (US Models Only) 1 1 1 1 1 1 ----
*91412203 Flexible Stainless Steel Gas Hose, 3/4” NPT (US Models Only) - - - - - - 1111
91907302 S-Hooks 2 2 2 2222222
91911700 Outside Air Collar 1 1 1 1111111
94118106 #8 x 3/8 Hex Washer Head (for Outside Air Collar) 3 3 3 3333333
92311800 Keps Nut 4 4 4 4444444
03051503 Turbulator Adapter 1 1 1 1 1 - 1 - - -
03051504 Turbulator 2.5' (76 cm), Aluminized Steel 2 4 4 1 3 - 1 - - -
03051505 Turbulator 2.5' (76 cm), Stainless Steel 1 - - -------
Table 2: Contents of Core and Extension Packages
Core Packages Extension Packages
Hot Rolled Aluminized Hot Rolled Aluminized
Part No. Description 20
'
(6m)
30 '
(9m)
40 '
(12m)
10 '
(3m)
20 '
(6m)
30 '
(9m)
40 '
(12m)
10 '
(3m)
20 '
(6m)
30 '
(9m)
40 '
(12m)
10 '
(3m)
20 '
(6m)
30 '
(9m)
40 '
(12m)
91409300 Tube, Hot Rolled Steel, 10
' (3 m) 123----1234----
91409408 Tube, HT Aluminized, 10
' (3 m) ----123----1234
03051101 Burner Tube, ALUMI-THERM
®
Steel, 10 ' (3 m) -11--11--------
03051601 Burner Tube, HT ALUMI-THERM
®
Steel, 10 ' (3 m) 1--11----------
01312700 Coupling Assembly 1 2 3 - 1 2 3 1 2 3 4 1 2 3 4
02750303 Standard Reflector, 8
' (3.5 m) 346234623462346
02750800 End Cap 2 2 2 2 2 2 2 - - - - - - - -
03090100 Tube and Reflector Hanger 3 4 5 2 3 4 5 1 2 3 4 1 2 3 4
91907302 S-Hook 3 4 5 2 3 4 5 1 2 3 4 1 2 3 4
03050010 Reflector Support Package (Strap, Wire Form, Screws) 2 3 5 1 2 3 5 2 3 4 6 2 3 4 6
91107720 U-Clip Package 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
90502700 Vent Adapter 1 1 1 1 1 1 1 - - - - - - - -
01318901 Tube Clamp Package 1 1 1 1 1 1 1 - - - - - - - -
Part Number
CP20HRS CP30HRS CP40HRS
CP10ALUM CP20ALUM CP30ALUM CP40ALUM
EXP10HRS EXP20HRS EXP30HRS EXP40HRS
EXP10ALUM EXP20ALUM EXP30ALUM EXP40ALUM

SECTION 5: MAJOR COMPONENTS
11
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).
Table 3: BH-Series Component Package Guide
Model Tubing Length Core Packages
Minimum Standard Aluminized
BH-40 10' (3 m) -CP10ALUM
BH-60 20' (6 m) CP20HRS CP20ALUM
BH-80 20' (6 m) CP20HRS CP20ALUM
BH-100 30' (9 m) CP30HRS CP30ALUM
BH-115 30' (9 m) CP30HRS CP30ALUM
BH-125 40' (12 m) CP40HRS CP40ALUM
BH-140 40' (12 m) CP40HRS CP40ALUM
BH-150 50' (15 m) CP30HRS + EXP20HRS CP30ALUM + EXP20ALUM
BH-175 50' (15 m) CP30HRS + EXP20HRS CP30ALUM + EXP20ALUM
BH-200 60' (18 m) CP30HRS + EXP30HRS CP30ALUM + EXP30ALUM

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
12
SECTION 6: HEATER INSTALLATION
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 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 in
Figure 12.
FIGURE 12: Critical Hanger Placement
WARNING
Suspension Hazard
Burner is secured to burner tube
by bolts and lockwashers.
Hang heater with materials
with a minimum working
load of 75 lbs (33 kg).
Failure of the supports
can result in death injury
or property damage.
Description Part Number
S-Hook 91907302
Tube/Reflector Hanger 03090100
Hanger
Side View
Must Be Within 4" (10 cm) Front View
S Hooks
eflector
Hanger
45° Angle
* Allows for thermal expansion of system
Typical Suspension Details
od (3/8")
(9.5 mm)
Beam Clamp Concrete Beam
Wood Beam
Washers
Locknut
Screw Hook
(3/8")
(9.5 mm)
24" min.*
(61 cm) X*
Anchor
S Hooks
Chain size
3/16" (4.7 mm)
minimum
Turnbuckle
Not Included
Run Length Typical Expansion Mininum “X” Length
10' - 50' ±1” (3 cm) 12”
51' - 60' ±2” (5 cm) 18”
61' - 80' ±3” (8 cm) 24”

SECTION 6: HEATER INSTALLATION
13
FIGURE 13: Linear Heater Assembly Overview
Tube
eflector
eflector End Cap
eflector Support
Burner
Coupling
U-Clips
Burner Tube
Tube and eflector Hanger
Tube Clamp
Package
Vent Adapter
Turbulator
(With Select Models)

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
14
FIGURE 14: Linear Heater Layout Overview
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 = 12.5" (32 cm)
burner height
g = 11" (28 cm)
burner length
Vent Adapter
Burner
eflector
Tube
Tube/ eflector
Hanger
Coupling Assembly
LEGEND
g
c
b
d
f
g
c
b
de
f
g
c
b
de
f
e
g
c
b
de
f
e e
g
c
b
de
f
e e e
10' Tube Length
20' Tube Length
30' Tube Length
40' Tube Length
50' Tube Length