Rapid Engineering BH-40, BH-80, BH-60, BH-125, BH-100 Installation, Operation & Service Manual

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. Leave the building.

6. Immediately call your local gas
supplier after leaving the building.
Follow the gas suppliers
instructions.

7. If you cannot reach your gas
supplier, call the Fire Department.

WARNING

™

The Economical Unitary

Infrared Heater

Installation, Operation &

Service Manual

BH-40

Fire Hazard

Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.

Some objects will catch fire or explode
when placed close to heater.

Failure to follow these instructions can
result in death, injury or property
damage.

WARNING

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.

Installation must be done by a contractor qualified
in the installation and service of gas-fired heating
equipment or your gas supplier.

BH-60
BH-80

BH-100

BH-115
BH-125
BH-140
BH-150
BH-175

BH-200

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.

© Copyright 2005 Roberts-Gordon

Rapid Engineering

1100 Seven Mile Road, NW
Comstock Park, MI 49321
Telephone: [phone]
Fax: [phone]
Toll Free: 800.536.3461

www.rapidengineering.com

P/N RPBH70101NA Orig 11/05

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

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.

© 2005

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

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.

SECTION 1: HEATER SAFETY

1

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

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

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.

Failure to follow these instructions can result in
property damage.

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.

2

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

SECTION 3: CRITICAL CONSIDERATIONS

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.

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.

3

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

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

Model ABCDABCD

A

BD

C

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 6 46 76 46 16 117 194 117

BH-140/150 6 50 79 50 16 127 201 127

BH-175/200 8 52 82 52 21 133 209 133

FIGURE 2: One Side Reflector

Model ABCDABCD

A

BD

C

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

(inches) (centimeters)

(inches) (centimeters)

FIGURE 3: Two Side Reflectors

Model ABCDABCD

A

BD

C

BH-100 6 277727166919669

BH-115/125 6 32 83 32 16 82 211 82

BH-140/150 6 358735168922189

BH-175/200 8 40 91 40 21 102 232 102

4

(inches) (centimeters)

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

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

Model ABCDABCD

A

BD

C

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 8 77 69 26 21 196 176

BH-140/150 12 8 83 74 31 21 211 188

BH-175/200 12 8 85 79 31 21 216 201

FIGURE 5: U-Tube, Standard Reflector

Model ABCDABCD

A

B

C

D

BH-40

BH-60 6 35 62 30 16 89 158 77

BH-80 6 38 68 37 16 97 173 94

BH-100 6 40753916102191100

BH-115/125 6 46 78 43 16 117 199 110

BH-140/150 6 50 83 47 16 127 211 120

BH-175/200 8 54 87 51 21 138 221 130

SECTION 3: CRITICAL CONSIDERATIONS

(inches) (centimeters)

(inches) (centimeters)

- UNAPPROVED - - UNAPPROVED -

FIGURE 6: U-Tube, 45°

A

B

C

D

(inches) (centimeters)

Model ABCDABCD

BH-40

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

- UNAPPROVED - - UNAPPROVED -

5

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.

FIGURE 7: U-Tube, Opposite 45° Reflector

(inches) (centimeters)

Model ABCDABCD

A

B

C

D

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

BH-40

- UNAPPROVED - - UNAPPROVED -

FIGURE 8: 2-Foot Deco Grille, 1-Foot Deco Grille and Protective Grille

(inches) (centimeters)

Model ABCDABCD

A

C

BD

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 6 46 76 46 16 117 194 117

BH-140/150 6 50 79 50 16 127 201 127

BH-175/200 8 52 82 52 21 133 209 133

FIGURE 9: Lower Clearance Shield*

Model ABCDABCD

A

BD

C

BH-100 6 50445016127112127

BH-115/125 6 54 48 54 16 138 122 138

BH-140/150 6 55 50 55 16 140 127 140

BH-175/200

*When installed in the first 20’ (6 m).

6

(inches) (centimeters)

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

- UNAPPROVED - - UNAPPROVED -

SECTION 3: CRITICAL CONSIDERATIONS

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

A

Unvented

Radiant Tubes

Vented

E

Vent
Pipes

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

7

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 4: NATIONAL STANDARDS AND
APPLICABLE CODES

4.1 Gas Codes

The type of gas appearing on the nameplate
must be the type of gas used. Installation must
comply with national and local codes and
requirements of the local gas company.

United States: Refer to National Fuel Gas Code,
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.

8

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
FIGURE 11: Major Component Descriptions

SECTION 5: MAJOR COMPONENTS

Burner with Tube Gasket

Must be installed with the
flame observation window
facing down.

Burner Tube

Supplied in 10

' (3 m) lengths.

Burner tube is always the first
tube after the burner.

Reflector (Aluminum or
Stainless Steel)

Alternate overlap as shown on
overview and on Page 14,
Figure 14. Minimum overlap is
6” (16 cm).

Tube

Hot Rolled or Heat Treated
Aluminized Tube supplied in
10' (3 m) lengths.

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

Flex Gas Line with
Shut Off Cock

Coupling Assembly with Lock

Reflector End Cap

Punch out center section to
accommodate heat exchanger
tube.

Vent Adapter

Turb ul ato r

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

9

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

5.1 Standard Parts List

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 (Rate and Fuel Varies) 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, Operation and Service Manual 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 - - -------

*Canadian models: Rubber (Type 1) Gas Hoses available as an accessory. See Page 39.

Table 2: Contents of Core and Extension Packages

Core Packages Extension Packages

Hot Rolled Aluminized Hot Rolled Aluminized

Part No. Description

91409300

91409408

03051101

03051601

Tube, Hot Rolled Steel, 10

Tube, HT Aluminized, 10

Burner Tube, ALUMI-THERM

Burner Tube, HT ALUMI-THERM® Steel, 10' (3 m)

'

(3 m)

'

(3 m)

®

Steel, 10' (3 m)

01312700 Coupling Assembly 1 2 3 - 1 2 3 1 2 3 4 1 2 3 4

02750303

Standard Reflector, 8

'

(3.5 m)

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

'

30

'

40

'

10

'

20

'

30

'

40

'

10

'

20

'

30

'

40

'

10

'

20

'

30

'

40

20

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

(12m)

(3m)

(6m)

(9m)

'

(12m)

123----1234----

----123----1234

-11--11--------

1--11----------

346234623462346

10

CP20HRS

CP30HRS

CP40HRS

CP10ALUM

CP20ALUM

CP30ALUM

EXP10HRS

CP40ALUM

EXP20HRS

EXP30HRS

EXP40HRS

EXP10ALUM

EXP20ALUM

EXP30ALUM

EXP40ALUM

Table 3: BH-Series Component Package Guide

SECTION 5: MAJOR COMPONENTS

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

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).

11

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 6: HEATER INSTALLATION

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.

To ensure your safety, and comply with the terms of
the warranty, all units must be installed in
accordance with these instructions.

FIGURE 12: Critical Hanger Placement

Typical Suspension Details

Beam Clamp

Rod (3/8")

24" min.*

(61 cm)

(9.5 mm)

X*

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.

Concrete Beam

Anchor

Screw Hook
(3/8")
(9.5 mm)

Chain size

3/16" (4.7 mm)

minimum

S Hooks

Locknut

Wood Beam

Washers

Side View

Must Be Within 4" (10 cm) Front View

Description Part Number

S-Hook 91907302
Tube/Reflector Hanger 03090100

Turnbuckle

Not Included

S Hooks

Hanger

Reflector

* Allows for thermal expansion of system

Hanger

45° Angle

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”

12

FIGURE 13: Linear Heater Assembly Overview

SECTION 6: HEATER INSTALLATION

U-Clips

Vent Adapter

Turbulator

Tube

(With Select Models)

Reflector End Cap

Reflector

Burner

Burner Tube

Package

Tube Clamp

Reflector Support

Coupling

Tube and Reflector Hanger

13

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 14: Linear Heater Layout Overview

LEGEND

Burner

Reflector

Tube

Tube/Reflector
Hanger

Coupling Assembly

Vent Adapter

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

g

f

10' Tube Length

g

f

' Tube Length

20

b

g

f

' Tube Length

30

g

b

c

d

b

c

de

c

de

b

c

de

e

e e

f

' Tube Length

40

f

' Tube Length

50

b

c

g

de

e e e

14

FIGURE 15: Linear Heater Layout Overview (Continued)

b

c

g

f

60' Tube Length

f

70

' Tube Length

g

de

b

c

g

de

b

c

de

e e e e

e e e e e

e e e e e e

SECTION 6: HEATER INSTALLATION

f

80

' Tube Length

Step 6.1 Burner Tube Installation

7' 6" ± 1 ft
(229 cm ± 25 cm)

Note:
Tubing requires a downward
slope of 1/2" (13 mm) per
20

' (6 m) away from burner.

Description Part Number

Burner Tube 03051XXX
S-Hook 91907302
Tube/Reflector Hanger 03090100

15

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.2 Tube Clamp Package Installation

Description Part Number
Tube Clamp Package 01318901

Tube Clamp 01396801
Bolt 97113940
Flat Washer 95211600
Nut 92113900

Tube Clamp

Flat

Washer

Bolt

Nut

(torque 120 in/lb

13.56 Nm)

Step 6.3 Coupling and Tube Assembly

Close coupling

A

with tab.

Open

Closed

Insert tubes into coupling.

C

Orient coupling so that

the impact block is in the

2:00 or 10:00 oclock

positions

Tube

Tab

Tube

Start slide bar/coupling lock

B

onto coupling.

Slide Bar/Coupling Lock

3" (8 cm) to
4" (10 cm)

Tighten coupling to join tubes.

D

Tube

Description Part Number

Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube 91409XXX

Wide end

Coupling

Slide Bar/Coupling Lock

Coupling

16

Step 6.3.1 Coupling and Tube Assembly (Continued)

Tighten slide bar as shown below.

Drive Slide Bar until tight.
End of Slide Bar should be
within tolerance listed below.

± 2" (5 cm)

Correct Slide Bar

dimensions

SECTION 6: HEATER INSTALLATION

Incorrect Slide Bar

position

• Repeat Step 6.3 A - D until all tubes are assembled. See Page 17, Step 6.3.2.

Step 6.3.2 Coupling and Tube Assembly (Continued)

7' 6" ± 1'

(229 cm ± 25 cm)

10' ± 1'

(305 cm ± 25 cm)

Tube Length

Model

BH-40 10' (3 m)
BH-60 20' (6 m)
BH-80 20' (6 m)
BH-100 30' (9 m)
BH-115 30' (9 m)
BH-125 40' (12 m)
BH-140 40' (12 m)
BH-150 50' (15 m)
BH-175 50' (15 m)
BH-200 60' (18 m)

Mi nimum

Total Overall
Tube Length

17

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.4 Turbulator Installation

Turbulator

' Section

2.5

Turbulator
Adapter

Turbulator section 2.5'
(stainless) used in BH-40
heaters must be in the section of
turbulator nearest to the burner.

Ta b

Turbulator must be installed in the last
standard section of tube. Turbulator is
not required on the BH-125/150/175/200.

T

w

i

s

t

Pull String

Fold tab around outside
of tube nearest to the vent to hold turbulator
in place. Where a vent sleeve
is used, do not fold tab.

Turbulator Installation

Model Tube Section

BH-40 1st 10' Section
BH-60 2nd 10' Section
BH-80 2nd 10' Section
BH-100 3rd 10' Section
BH-115 3rd 10' Section
BH-125 N/A
BH-140 4th 10' Section
BH-150 N/A
BH-175 N/A
BH-200 N/A

Description Part Number

Turbulator Adapter 2.5' 03051503
Turbulator Section 2 03051504
Turbulator Section 2.5' (Stainless) 03051505
Tube 91409XXX

Step 6.5 Reflector Installation

Hanger

Burner Tube

NOTE: All tube surfaces must

be covered by a reflector,
except for a U-tube.

Description Part Number

Tube/Reflector Hanger 03090100
Burner Tube 03051XXX
Reflector 02750303

18

Reflector

Step 6.5.1 Reflector, U-Clip and Reflector Support Installation

The pictorial drawings of the heater construction in
Section 6 are schematic only and provide a general
guideline of where hangers, reflector supports and
U-clips are to be installed.

and reflector supports are used. The positioning of
reflector supports and U-clips depend on the
individual installation. The following rules must be

observed.
To ensure proper expansion and contraction
movement of the reflectors, a combination of U-clips

1. The first reflector after the burner must be affixed in
the middle of the reflector with a reflector support and
tight screws.

Reflector
End Cap

Wire Form

SECTION 6: HEATER INSTALLATION

Tight

Sheet Metal

Screw

First Reflector

U-Clips

Overlap must be a

minimum of 6" (16 cm).

2. The overlap at the first and second reflector is a slip overlap.
Thereafter, every third reflector joint is a slip overlap. A slip
overlap is achieved by either:
a.) both reflectors lay inside a hanger.

(No reflector support needed.)

b.) using a reflector support with

loose screws at the reflector
overlap.

3. The remaining reflector overlaps require a non-slip
overlap connection. To affix the reflectors together in
a non-slip overlap either:
a.) use reflector support and tight screws.
b.) if both reflectors lay inside a hanger, u-clips or

sheet metal screws may be used.

6"

(16 cm)

2 A

Slip Overlap

Reflector Support

Strap

2 B

Slip Overlap

3 A

Non-Slip Overlap

Reflector
Reflector

Support

Loose screws
loosened 1/16"
(2 mm) to allow
slippage.

Reflector

This section of three reflectors joined together must
be affixed to the tube with at least one reflector support
with tight screws.

Description Part Number
Reflector Support Package 03050010

Wire Form 91908004
Reflector Support Strap 03050000

Screw #8 x 3/4 94320812
U-Clip Package 91107720
Reflector End Cap 027508XX

Tight

screws

3 B

Non-Slip Overlap

U-Clip

(2 clips per
non-slip overlap
inside a hanger)

19

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 6.6 Burner Installation

Extra chain min.

12" (30 cm)

S-Hook

Burner Tube

Burner

Gasket

Description Part Number

Bolt 94273914
Burner RP71XXXXX
Lock Washer 96411600
Gasket 02568200

Lock
Washer

Bolt
(Torque 120 in/lb

13.56 Nm)

20

SECTION 7: OPTIONAL HEATER ACCESSORIES

SECTION 7: OPTIONAL HEATER ACCESSORIES

7.1 U-Tube Configuration

Heaters (except BH-40) are approved for optional
U-Tube configurations.
The U-Tube may be installed in either a standard
horizontal position, a 45° position or in an opposite
45° position as shown on Page 5, Figure 5 through
Page 6, Figure 7. When using a U-Tube
configuration, the following additional rules must be
adhered to:

FIGURE 16: U-Tube Heater Assembly Overview

U-Tube

Support Bracket

Reflector

Support

Burner

Vent Adapter

• A minimum of 10' (3 m) on BH-60/80 and a
'

minimum of 15

(4.5 m) on BH-100/115/125/140/
150/175/200 is required between the burner and
the U-Tube.

• The correct turbulator (See Page 18, Step 6.4)
must be installed in the last standard section of
the tube.

• The burner must never be operated in a tilted
position.

• The heater must be properly supported at all
locations. See Page 22, Figure 17.

Tube Clamp

Package

U-Tube, Standard

12

U-Tube,
45°

2

1

U-Tube,
Opposite 45°

12

Turbulator

(With Select

Models)

Burner

Tube

Tight U-Bolt

12

4" (10 cm) U-Bolt,

secured to Burner Tube

with 1/4" (6 mm)

Lockwashers and

1/4-20 Hex Nuts

Tube

Couplings

Loose U-Bolt

4" (10 cm) U-Bolt,

secured to Bracket with

1/4" (6 mm) Lockwashers

and 1/4-20 Hex Nuts on

top and bottom to

allow for tube expansion

and contraction

U-Bolt

Nut
Lock Washer
Lock Washer
Nut

Reflector

U-Clips

Reflector

End Caps

U-Tube

18" (457 mm)

Center to Center

21

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 17: U-Tube Heater Layout Overviews

LEGEND

Burner

b

c

g

e

Reflector

Tube 10

Tube 5' **

Tube/Reflector
Hanger

Coupling
Assembly

U-Tube

a = 14" (36 cm)
reflector width (not shown)

b = 2" (5 cm)
end cap to burner

c = 2" (5 cm)
end cap to hanger

'

6" (229 cm)

d= 7
distance first hanger

'

(305 cm)

e = 10
distance between hangers

f = 5

'

(153 cm)
distance between last full tube
hanger and half tube hanger

'

Vent Adapter
(not shown)

h

'

Tube Length*

20

b

c

g

d

f

h

30' Tube Length**

b

c

g

de

h

40' Tube Length

g = 12.5" (32 cm) burner length

h = 11" (28 cm) burner height

* Requires the last reflector
before the U-Tube to be cut in
half for use on both sides.

** Requires the last tube before
the U-Tube to be cut in half for
use on both sides.

22

b

c

g

de

f

h

50' Tube Length* **

FIGURE 18: U-Tube Layout Overviews (Continued)

b

c

g

h

g

h

de

60' Tube Length

b

c

de

SECTION 7: OPTIONAL HEATER ACCESSORIES

e

e

f

70

' Tube Length**

b

c

g

de

h

80

' Tube Length

7.2 Elbow Package Configuration
Step 7.2.1 Elbow Installation

Tube

Description Part Number
Elbow Package 02718702

90° Elbow 01335801
Coupling 01312700
Reflector End Cap 02750800
Reflector Joint Piece 02750900

U-Clip Package 91107720

Coupling

90° Elbow

e e

Minimum Distance Required
Between Burner and Elbow

Model

BH-40 10' (3 m)
BH-60 10' (3 m)
BH-80 10' (3 m)
BH-100 15' (4.5 m)
BH-115 15' (4.5 m)
BH-125 15' (4.5 m)
BH-140 15' (4.5 m)
BH-150 15' (4.5 m)
BH-175 15' (4.5 m)
BH-200 15' (4.5 m)

Minimum

Distance

23

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 7.2.2 Elbow Installation

Step 7.2.3 Reflector Joint Installation

Reflector

Tube

Coupling

Scribe
Contour

Step 7.2.4 Reflector Joint Installation

Reflector
Joint

Flatten Edge

1" (2.5 cm)
Maximum

Cut away contour
with tin snips.

24

Punch/drill six 3/32" (2 mm) holes.

Step 7.2.5 Reflector Joint Detail

Install reflector
end cap.

FIGURE 19: Reflector Joint Detail

SECTION 7: OPTIONAL HEATER ACCESSORIES

Attach reflector joint
with six #8 sheet
metal screws.

Reflector
Joint

Reflector

25

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

7.3 Reflector Side Extension
Step 7.3.1 Bracket Installation

Tube

Description Part Number
Reflector Side Extension Package 02712700

Reflector Side Extension 01368000
Retainer Clips 02751200
Sheet Metal Screws 94118106

Order Separately

Reflector Side Extension Bracket 01329910

Reflector

Tube and Reflector Hanger

Reflector Support

Reflector Side

Extension Bracket

(2 per reflector)

Use additional supports

in high air movement

applications.

Step 7.3.2 Side Reflector Installation

#8 x 3/8" Sheet Metal Screw

Cut relief notches for
supports and hangers.

Retainer Clip
(2 per side)

26

Reflector Side Extension

7.4 Lower Clearance Shield Installation

Washers

Screws

Locknuts

Step 7.4.1 Shield Support Strap Assembly

12"

17.1"

(434 mm)

Align Pilot Holes

(300 mm)

SECTION 7: OPTIONAL HEATER ACCESSORIES

Reflector

Lower Clearance Shield

7.5 Two-Foot Decorative Grille Installation
Step 7.5.1 Grille Installation

Reflector

Tube

Description Part Number
Lower Clearance Shield Package 01397501

Shield Support Strap 01397500
Lower Clearance Shield 8' 02793000
Locknut #8 92311400
Flat Washer #8 95310800
Screw #8 x 3/8 93511406

Tube and Reflector
Hanger

Suspended Ceiling Frame

' x 4' (61 x 122 cm) Aluminum Grille

2

Description Part Number

Aluminum Grille 2 ft x 4 ft 91407000

27

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Step 7.5.2 Frame Shield Installation

Shield

Description Part Number

Deco Grille Shield 01365900

Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles

NOTE: If the Decorative Grille system is to
be installed in an area with considerable
air movement, it is recommended that one
#8 x 3/8 (3.9 x 9.5 mm) sheet metal screw
be installed per reflector extension to
prevent it from blowing over.

A

Cut Relief Notches for Tube
and Reflector Hangers

Insert Screw
here

Reflector Side
Extension

Distance "A" Extension

Minimum Maximum Part No. Width

2” (4 cm) 6” (15 cm) 01370408 8” (20 cm)

6” (15 cm) 10” (26 cm) 01370412 12” (30 cm)

10” (26 cm) 14” (37 cm) 01370416 16” (40 cm)

28

Description Part Number

Reflector Side Extension 01370412

7.6 One-Foot Decorative Grille Installation

Spread apart brackets
and install
Decorative Grille.

#8 Sheet Metal Screws

Joint Piece

Reinforcement

Slip joint piece into
support bracket
and fasten to
bracket on one side
of the joint only.

Joint Piece

Step 7.6.1 One-Foot Decorative Grille Bracket

#8 Sheet Metal Screws

SECTION 7: OPTIONAL HEATER ACCESSORIES

In order to maintain reflector shape, do
not fasten brackets together. Do not
fasten bracket to adjoining reflectors.
Maintain same slipjoint position as
reflectors.

Decorative Grille Bracket

Description Part Number

Bracket 01363003

Step 7.6.2 Decorative Grille

Description Part Number

Decorative Grille 8' x 1' 91406700

Cut relief notches for
supports and hangers.

2" (51 mm)
Minimum
Bracket
Overlap

Step 7.6.3 Joint Piece and Reinforcement

Description Part Number

Joint Piece 01365903
Reinforcement 01365902

29

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Fasten end piece
to brackets using two
#8 sheet metal screws
and replace reflector end cap.

Insert end piece

between grille and

brackets.

End Piece

Reflector
End Cap

Step 7.6.4 End Piece and Reflector End Cap

Step 7.6.5 90° Elbow

Inside

Corner

Grille Brackets

Joint Piece

Decorative Grille

Brackets

Cut grille bracket at
reflector joint piece.

Description Part Number

End Piece 01365901

Insert
End Piece
between
grille and
brackets.

Joint Piece

30

7.7 Protective Grille Installation
Step 7.7.1 Silicone Cap Installation

Silicone Cap

SECTION 7: OPTIONAL HEATER ACCESSORIES

Grille
Finger

Step 7.7.2 Grille End Cap Installation

A

Grille

C

Pull outward

Step 7.7.3 Grille Installation

Description Part Number

Grille Section 08050001
Grille End Cap 08050002
Silicone Cap 91915951-6P

B

Grille End Cap

D

Bend up 90°

40"

(101 cm)

Reflector

Final Grille
Section

Grille

Grille
End Cap

31

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 8: VENTING

WARNING

Carbon Monoxide Hazard

Heaters installed unvented must
be interlocked with sufficient
building exhaust.

Heaters must be installed
according to the installation
manual.

Failure to follow these
instructions can result in death
or injury.

8.1 Venting

This heater must be vented in accordance with the
rules contained in this manual and with the following
national codes and any state, provincial or local
codes which may apply: United States: Refer to
ANSI Z223.1 (NFPA 54) - latest revision; Canada:
Refer to CAN/CGA-B149.1 and B149.2 - latest
revision.
Exhaust end of heater will accept a 4” (10 cm) vent
pipe using the vent adapter (P/N 90502700). To
prevent leakage of condensation, install the vent
adapter with the seam on top and seal the joint using
a high temperature silicone sealant.

Any portion of vent pipe passing through a
combustible wall must have an approved thimble
(P/N 90505600) to conform with the above listed
codes.

Vent pipe must be sloped downward away from the
burner 1/2” (1 cm) for every 20' (6 m).

The heater may be individually vented or common
vented. When venting horizontally, a maximum of two
heaters can be commonly vented. See Page 35,
Section 8.9. When venting vertically, a maximum of
four heaters can be commonly vented. See Page 36,
Section 8.10.

The heater may also be installed unvented in certain
circumstances according to building ventilation
codes. Refer to the above codes and Page 32,
Section 8.2 for further information. Unvented
operation also requires compliance with the
clearances to combustibles given on Page 7, Figure

10.

The bottom of the vent or air intake terminal shall not
be located less than 1' (.3 m) above grade level.

The vent shall not terminate less than 7' (2.1 m)
above grade where located adjacent to public
walkways.

Vent terminal must be installed at a height sufficient
to prevent blockage by snow, and building materials
protected from degradation by flue gasses.

Secure all joints with #8 x 3/8 sheet metal screws.
Seal all joints with high temperature silicone sealant.

Vent terminal must be beyond any combustible
overhang.

8.1.1 United States Requirements

Vent must terminate at least 3' (.9 m) above any
forced air inlet located within 10' (3.1 m).

Vent must terminate at least 4' (1.2 m) below, 4'
(1.2 m) horizontally from, or 1' (.3 m) above any door,
operable window, or gravity air inlet into any building.

8.1.2 Canadian Requirements

The vent shall not terminate within 6' (1.8 m) of a
mechanical air supply inlet to any building.
The vent shall not terminate within 3' (.9 m) of a
window or door that can be opened in any building,
any non-mechanical air supply inlet to any building,
or of the combustion air inlet of any other appliance.

8.2 Unvented Operation

Sufficient ventilation must be provided in the amount
of 4 cfm per 1000 Btu/h firing rate (United States); 3
cfm per 1000 Btu/h firing rate (Canada).
Use of optional outside combustion air is not
recommended with unvented heaters.

If exhaust fans are used to supply ventilation air, an
interlock switch must be used to prevent the heater
from coming on when the fans are off. This may be
done using a pressure switch.

8.3 Horizontal Venting

In noncombustible walls only, vent terminal
(P/N 02537801-1P) may be used.

For 4” (10 cm) vents in either combustible or
noncombustible walls, use P/N 90502100 (Tjernlund
VH1-4) or equivalent, insulated vent terminal. Follow
the manufacturer's instructions for proper installation.

For 6” (15 cm) common vents in either combustible or
noncombustible walls, use P/N 90502101 (Tjernlund
VH1-6) or equivalent, insulated vent terminal. Follow
the manufacturer's instructions for proper installation.

32

8.4 Vertical Venting

For 4” (10 cm) common vent, an approved vent cap
(P/N 90502300) must be used.

For 6” (15 cm) common vent, an approved vent cap
(P/N 90502302) must be used.
For common vertical venting of more than two
heaters, See Page 36, Section 8.10.

A vent shall not extend less than 2' (.6m) above the
highest point where it passes through a flat roof of a
building.

8.5 Unvented Operation Tube Termination

Turndown type vent terminal with a screen must be
installed at the exhaust end of the tube. Vent terminal
design shall not incorporate backdraft flap.

FIGURE 20: Tube Termination

SECTION 8: VENTING

8.6 Length Requirements

The maximum vent length allowed is 45' (13.7 m).
The maximum outside air supply duct length allowed
is 45' (13.7 m).
The total vent length, plus outside air duct length,
plus any extensions to minimum heat exchanger
lengths, cannot exceed 65' (19.8 m).

Vent length should be limited to less than 20' (6 m). If
using vent lengths greater than 20' (6 m),
condensation will form in the vent pipe. Insulation
and additional sealing measures (high temperature
silicone at all seams) are required. Optional heat
exchanger beyond minimum lengths is considered as
vent length for length determination.
Subtract 15' (4.6 m) of maximum allowed vent or duct
length per vent elbow if more than two are used.

33

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

8.7 Horizontal Ventilation 4 in (10 cm) Pipe

SIDE VIEW

Combustible or

Non-Combustible Wall

Vent Adapter

4" Single Wall Pipe

Vent Terminal

Description Part Number

Vent Terminal (Comb. Wall) 90502100
Vent Terminal 02537801-XX
Wall Thimble 90505600

8.8 Vertical Ventilation 4 in (10 cm) Pipe

SIDE VIEW

18" (46 cm)

Min.

Vent Adapter

4" Single Wall Pipe

4" (10 cm) Type "B" vent pipe

Roof

Flashing

Non-Combustible Wall Only

18" Min.

Vent Terminal

4" (10 cm) Type "B" vent cap

Vent Adapter

(If Applicable)

4" (10 cm) Single Wall Pipe

Description Part Number

Vent Cap 4” (10 cm) 90502300

Approved

Thimble

Roof

The last section of vent pipe
passing through the roof or
wall may be Type "B" vent pipe.
All other vent materials in the
building must be single wall
vent pipe.

34

8.9 Common Side Wall Venting

TOP VIEW

Vent Terminal

Tjernlund VH1-6 or Equivalent

Outside Wall

Outside Wall

SECTION 8: VENTING

Vent Adapter

6" Single Wall Pipe

4" Single Wall Pipe

6" Single Wall Pipe

Sweeping 'Y'

Connection

Description Part Number

Vent Terminal 6” (15 cm) 90502101

Vent Adapter

Requirements:

• Maximum of 2 heaters can be commonly vented
through a side wall.

• Heaters must be of the same BTU output.

• Heaters must be controlled by a common
thermostat.

Sweeping 'T'

Connection

Vent Adapter

Vent Terminal

Tjernlund VH1-6 or Equivalent

Outside Wall

Vent Adapter

4 in Single Wall Pipe

4" Single Wall Pipe

35

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

8.10 Common Vertical Venting

SIDE VIEW

Type "B" vent cap
(7" or 8") may be used.
(These are not available
from Rapid Engineering.)

Type "B" Vent Pipe

Vent Adapter

4" (10 cm)

Single Wall Pipe

TOP VIEW

18" (46 cm)

Min.

The last section of vent pipe
passing through the roof or
wall may be Type "B" vent pipe.
All other vent materials in the
building must be single wall
vent pipe.

D

Roof

Flashing

Roof

Approved

Thimble

(If Applicable)

Single Wall Pipe

D Area must equal sum

of open area of

individual vents.

Vent Adapter

4" (10 cm)

Single Wall Pipe

Requirements:

• Heaters must be controlled by a common
thermostat.

• Connections to a commom stack must be
positioned to avoid direct opposition between
streams of combustion gases.

36

SECTION 8: VENTING

8.11 Outside Combustion Air Supply

IMPORTANT: If the building has a slight negative

8.11.1 Length Requirements

Follow the constraints listed on Page 33, Section 8.6.
pressure or corrosive contaminants, such as
halogenated hydrocarbons, are present in the air, an
outside combustion air supply to the heater is
required. Seal all combustion air pipe joints.

Use of optional outside combustion air is not
recommended with unvented heaters.

The air supply duct may have to be insulated to
prevent condensation on the outer surface. The
outside air terminal must not be more than 1' (31 cm)
above the vent terminal.

8.11.2 Vertical Outside Air Supply for Single Heater Installation

Vent Cap

18" (46 cm)

Min.

Roof

4" (10 cm)

Single Wall Pipe

(Recommended)

Description Part Number

Vent Cap 4” (10 cm) 90502300

Flex Hose

(Recommended)

Band Clamp

8.11.3 Horizontal Outside Air Supply for Single Heater Installation

4" (10 cm)
Single Wall Pipe

Vent Cap

Wall

Flex Hose

(Recommended)

Band Clamp

(Recommended)

Burner

Burner

Description Part Number

Vent Cap 4” (10 cm) 90502300

37

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

8.11.4 Vertical Outside Air Supply for Double Heater Installation

Roof

Vent Cap

6" (15 cm) Single Wall Pipe

Flex Hose

Sweeping 'T'

Connection

(Recommended)

Band Clamp

(Recommended)

Description Part Number

Vent Cap 6” (15 cm) 90502302

4" (10 cm)

Single Wall Pipe

Requirements:

• Heaters must be controlled by a common thermostat.

8.11.5 Horizontal Outside Air Supply for Double Heater Installation

6" (15 cm) Single Wall Pipe

BurnerBurner

Flex Hose

(Recommended)

Vent Cap

Description Part Number

Vent Cap 6” (15 cm) 90502302

Requirements:

• Heaters must be controlled by a common thermostat.

38

Outside Wall

Flex Hose

(Recommended)

Burner

Sweeping 'Y'

Connection

4" (10 cm) Single Wall Pipe

(Seal All Joints)

Burner

Band Clamp

(Recommended)

SECTION 9: GAS PIPING

WARNING

Fire Hazard

Tighten gas hose fittings to connect gas supply
according to Figure 20.

Gas hose can crack when twisted.

Gas hose moves during normal operation.

Failure to follow these instructions can result in death,
injury or property damage.

Install the gas hose as shown in Figure 21. The gas
hose accommodates expansion of the heating system
and allows for easy installation and service of the
burner. Before connecting the burners to the supply

FIGURE 21: Gas Connection with Flexible Gas Hose

SECTION 9: GAS PIPING

system, verify that all high pressure testing of the gas
piping has been completed.
There is an expansion of the tube with each firing
cycle, this will cause the burner to move with respect
to the gas hose. This can cause a gas leak resulting
in an unsafe condition if the gas connection is not
made strictly in accordance with Figure 21.
Meter and service must be large enough to handle all
the burners being installed plus any other connected
load. The gas hose which feeds the system must be
large enough to supply the required gas with a
maximum pressure drop of 1/2" w.c. When gas piping
is not included in the layout drawing, the local gas
supplier will usually help in planning the gas piping.

• Do not high pressure test the gas piping with
the burner connected. Failure to follow these
instructions can result in property damage.

• Check the pipe and tubing ends for leaks
before placing heating equipment into
service. When checking for gas leaks, use a
soap and water solution; never use an open
flame.

Shut-Off Valve

(Included With Gas Hose)

2" (5 cm)

12"

(30 cm)

Flexible

Gas Hose

Description Part Number

1/2” Flexible Stainless Steel Gas Hose (US Models) 91412200
3/4” Flexible Stainless Steel Gas Hose (US Models) 91412203
1/2” Rubber (Type 1) Gas Hose (Canadian Models) 91412206
3/4” Rubber (Type 1) Gas Hose (Canadian Models) 91412207

Shut-Off Valve must be parallel to
burner gas inlet. The 2" (5 cm)
displacement shown is for the cold
condition. This displacement may
reduce when the system is fired.

Side View

90° Pipe Elbow
(Not Included)

Burner Assembly
(Shown Without Blower Assembly)

Rear View

45°

Hold gas nipple securely
with pipe wrench when
attaching the gas hose.

Failure to follow these
instructions can result in
product damage.

0°

45°

Pipe Nipple

39

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 10: WIRING

WARNING

Electrical Shock Hazard

Disconnect electrical power and gas supply before
servicing.

This appliance must be connected to a properly
grounded electrical source.

Failure to follow these instructions can result in
death or electrical shock.

10.1 Line Voltage Thermostat Wiring

Line Voltage Thermostat

120 V-60 Hz

Supply Circuit

Heaters can be controlled using several methods.
Normally thermostats are used to control the heaters
but they can also be controlled by an Energy
Management System. Section 10.1 illustrates the
connection for heaters controlled by a line voltage
thermostat.

For heaters on a low voltage thermostat, See Page
41, Section 10.2. Heaters must be grounded in
accordance with applicable codes: United States:

®

refer to National Electrical Code

ANSI/NFPA 70 ­latest revision; Canada: refer to Canadian Electrical
Code CSA C22.1 Part I - latest revision.

If any of the original internal wiring must be replaced,
it must be replaced with wiring materials having a
temperature rating of at least 105°C and 600 volts.

L1

L2

Gnd.

N H

Gnd.

Burner 1 Burner 2

Additional

Burners

N H

Gnd.

Maximum 5 Burners

Per Thermostat

40

10.2 Low Voltage Thermostat Wiring

SECTION 10: WIRING

SPDT Transformer Relay

P/N 90417600

Black

Black

120 V-60 Hz
Supply Circuit

L1
L2

Gnd.

Burner 1

Description Part Number

SPDT Transformer Relay 90417600
Low Voltage Thermostat 90425100

FRONT VIEW BACK VIEW

R

1

4

COIL

White

3

2

6

COIL

5

Red

C

G

W

Y

N H

Gnd.

Burner 2

Low Voltage Thermostat

Additional

Burners

N H

Gnd.

Maximum 8 Burners

Per Relay

10.3 Internal Wiring

DSI Ignition Module

Pressure Switch

BLUE

WHITE

GREEN

WHITE

BLACK

N

BLACK

NO

C

Transformer

G

L

BLUE 24 V A/C

BLACK Flame Sense

YELLOW Ground

BROWN Main Valve

BLUE

BROWN

YELLOW

YELLOW

YELLOW

GREEN

Blower Connection

Electrode

BLACK

GREEN

Gas Valve

Burner Ground

Electrical Connection

L2

120 V-60 Hz

L1

Motor/Blower

41

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

10.4 Ladder Diagram

Transformer

Pressure

Switch

Gap

Power Supply
120 V - 60 Hz

Blower

120 V

24 V

Ground

Power

Sense
Spark

Valve

Electrode

Ignition Module

Gas Valve

42

10.5 Electrical Connection to the Burner

Connect Wires together with
suitable approved wire connections.

L1

L2

Green to Gnd.
White to L2

Gnd.

Black to L1

Conduit Hole

Green

White

SECTION 10: WIRING

Black

Internal Wire Bundle

Burner Box

Electrical Cord or
Flexible Conduit

BX or Romex Connector

43

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 11: OPERATION AND MAINTENANCE

This heater is equipped with a direct spark ignition
system.

11.1 Sequence of Operation

1. Turn the thermostat up. When the thermostat
calls for heat, the blower motor will energize.

2. When the motor approaches nominal running
RPM, the pressure switch closes and activates
the ignition module.

3. After a 45 second prepurge, the ignition module
then opens the gas valve and energizes the
spark igniter.

4. When the flame is established, the sparking
sequence ceases.

5. If the flame is not established during the ignition
sequence, the ignition module closes the gas
valve and purge begins. Module will try 2
additional times for ignition (with purges in
between trials). If ignition is not established, the
module will lockout.

6. If the flame extinguishes during operation, the
ignition module will attempt the multiple trial
sequence described in step 5. If ignition is not
re-established, the module will lockout for one
hour or until reset.

11.4 Pre-Season Maintenance and Annual
Inspection

WARNING

Turn off gas and electrical supplies before performing
service or maintenance.

Failure to follow these instructions can result in
death, injury or property damage.

To ensure your safety and years of trouble-free
operation of the heating system, service and annual
inspections must be done by a contractor qualified in
the installation and service of gas-fired heating
equipment.
Turn off gas and electric supplies before performing
service or maintenance. Allow heater to cool before
servicing.
Before every heating season, a contractor qualified in
the installation and service of gas-fired heating
equipment must perform a thorough safety
inspection of the heater.
For best performance, the gas, electrical, thermostat
connections, tubing, venting, suspensions and
overall heater condition should be inspected
thoroughly.
NOTE: Gas flow and burner ignition are among the
first things that should be inspected.
Please see Page 45, Section 11.5 for suggested
items to inspect.

7. After lockout, the control can be reset by turning
down thermostat for five seconds, and then
raising it again to desired temperature, or by
disconnecting power and then reconnecting.

8. When thermostat is satisfied, all power to the
unit is shut off.

11.2 To Shut Off Heater

Set thermostat to lowest setting.
Turn OFF electric power to heater.
Turn OFF manual gas valve in the heater supply line.

11.3 To Start Heater

Turn gas valve and electric power OFF and wait five
minutes for unburned gases to vent from heater.
Turn ON main gas valve.
Turn ON electric power.
Set thermostat to desired temperature.
Burner should light automatically.

44

SECTION 11: OPERATION AND MAINTENANCE

11.5 Maintenance Checklist

All

™

replacement

WARNING

Turn off gas and electrical supplies before performing
service or maintenance.

Failure to follow these instructions can result in
death, injury or property damage.

Installation Code and Annual Inspections:

installations and service of RAPID
performed by a contractor qualified in the installation and
service of gas-fired heating equipment and conform to all
requirements set forth in the RAPID
applicable governmental authorities pertaining to the
installation, service and operation of the equipment.

To help facilitate optimum performance and safety, Rapid
Engineering recommends that a qualified contractor
annually inspect your RAPID
service where necessary, using only RAPID
parts.

™

products must be

™

manuals and all

™

products and perform

The Vicinity of the Heater Do not store or use flammable objects, liquids or vapors near the heater.

Immediately remove these items if they are present.

See Page 3, Section 3.

Vehicles and Other
Objects

Maintain the clearances to combustibles.

Do not hang anything from, or place anything on, the heater.

Make sure nothing is lodged underneath the reflector, in between the tubes or
in the decorative or protective grilles (included with select models).

Immediately remove objects in violation of the clearances to combustibles.

See Page 3, Section 3.

Reflector Make sure there is no dirt, sagging, cracking or distortion.

Do not operate if there is sagging, cracking or distortion.

Make sure reflectors are correctly overlapped. See Page 19, Section 6.5.1.

Clean outside surface with a damp cloth.

Vent Pipe Venting must be intact. Using a flashlight, look for obstructions, cracks on the

pipe, gaps in the sealed areas or corrosion.

The area must be free of dirt and dust.

Remove any carbon deposits or scale using a wire brush.

See Page 32, Section 8.

Outside Air Inlet Inlet must be intact. Look for obstructions, cracks on the pipe, gaps in the

sealed areas or corrosion.

The area must be free of dirt and dust. Clean and reinstall as required.

45

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Tubes Make sure there are no cracks.

Make sure tubes are connected and suspended securely.

See Page 12, Section 6.

Make sure there is no sagging, bending or distortion.
Clean or replace as required.

Gas Line Check for gas leaks. See Page 39, Section 9.

Burner Observation
Window

Blower Scroll, Wheel and

Make sure it is clean and free of cracks or holes.

Clean and replace as required.

Compressed air or a vacuum cleaner may be used to clean dust and dirt.

Motor

Burner Cup and Orifice Clear of obstructions (even spider webs will cause problems).

Carefully remove any dust and debris from the burner.

Electrode Replace if there are cracked ceramics, excessive carbon residue, or erosion

of the electrode.

The electrode gap should be 1/8” (3.2 mm).

Thermostat There should be no exposed wire or damage to the thermostat.

See Page 40, Section 10.

Suspension Points Make sure the heater is hanging securely. Look for signs of wear on the chain

or ceiling.

See Page 12, Figure 12.

Decorative and Protective
Grille (optional)

The grille must be securely attached.

Check that the side reflector extensions are installed correctly and secured in
place if necessary. (Decorative grille only.)

See Page 27, Section 7.5 and Page 31, Section 7.7

Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 28, Section 7.5.2.

Lower Clearance Shield
(optional)

The lower shield must be securely attached. Inspect shield support straps
and lower clearance shield anchor points.

See Page 27, Section 7.4.

Make sure shield is installed correctly and secured in place if necessary.

See Page 27, Section 7.4.

46

SECTION 12: TROUBLESHOOTING

12.1 Troubleshooting Flow Chart

SECTION 12: TROUBLESHOOTING

Remove obstruction.

YES

NO

blower turn freely?

Unplug burner. Does the

YES

the burner?

Is there power 120 V at

NO

YESNO

Check relay wiring

failed. Replace blower.

Blower bearings may have

Replace blower.

to the burner.

(if applicable) and wiring

Remove obstruction.YES

NO

the burner obstructed?

Is the vent pipe or the inlet of

YES

NO

set at 1/8"?

Is the igniter gap

Repair, replace, or tighten

NO

Are the air hoses to the

pressure switch secure and

Carefully reset spark gap

hoses as necessary.

leak free?

to 1/8"

YES

wires from the transformer.

Remove the blue and yellow

NO

With the blue and yellow

wires still removed, is the

Is there 24 V at the

transformer secondary?

voltage at the transformer

black and white leads 120 V?

YES

YES

Reconnect transformer

Replace pressure switchYES

wires. Place a jumper wire

Replace transformer.

across the pressure switch.

NO

Is there a spark?

Replace ignition module.

NO

YES

thermostat terminals.

Does the blower turn on?

Place a jumper across the

NO Is the blower obstructed?

Turn up thermostat.

Does the blower turn on?

Check thermostat wiring

and replace thermostat if

NO

YES

necessary.

YES

Unplug burner and check

igniter and ignition wire. Are

NO

Is there spark at the igniter?

they damaged?

Replace igniter and

ignition wire as needed.

NO

and transformer.

Check wiring between the

power cord, blower motor

47

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

Check for the proper

the burner.

orifice and air plate inside

YESYES

Is the gas outlet pressure

Adjust the valve pressure.

NO

(10.5" for LP)?

3.5" for Natural Gas

YES

Is there gas outlet

the ignition period?

pressure available during

YES

during ignition time?

terminals. Is there 24 V

Measure voltage on valve

NO

NO

Replace gas valve.

YES

NO

Turn valve ON.

Is the knob on the gas

valve in the ON position?

YES

the ignition module OK?

Are the wires connecting

proper polarity.

Electrode leads are

and reconnect leads for

reversed. Disconnect power

Ye s

electrode terminal and

sensing lead wire from

Perform the flame current

check. Remove low voltage

insert a 0-50 DC microamp

Ye s

No

in good condition?

Inspect the ignition/flame

sense electrodes. Are they

No

below 0?

sensor wire and sensor

meter in series with the

probe. Does the meter read

Clean or replace electrode.

is less than 5 microamps,

reposition the electrode in

If the flame current reading

reading.

If repositioning and/or

the flame to get a higher

cleaning electrode does not

result in a suitable current

reading, replace electrode.

NO

YES

YES

purged of air?

Were the gas lines

min., LP should be 11")

ignition correct? (Natural 4.6"

Is the inlet gas pressure during

NO

Does the burner light? Purge lines.

48

NO

YES

NO

YES

at

800-536-3461

Contact Rapid Engineering

NO

TROUBLESHOOT ENDS.

If problems persist, contact your

local RAPID distributor.

NO

Are the wires

Replace/correct wires. Replace ignition module.

Contact gas company.

Check gas line stop cock.

and electrode OK?

connecting the module

NO

YES

Replace/correct wires.

YES

Does the burner stay on?

Check the thermostat and

check the continuity of the

NO

when the call for heat

Does the burner turn off

ground wire.

ends?

12.2 Manifold Gas Pressure Setting

Top View of Heater

SECTION 12: TROUBLESHOOTING

Manometer

6

5

4

3

2

1

0

1

2

3

4

5

6

Natural

3.5"

6

5

4

3

2

1

0

1

2

3

4

5

6

Propane

10.5"

49

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 13: REPLACEMENT PARTS
Use only genuine RAPID

™

replacement parts.
Use of parts not specified by Rapid Engineering voids warranty.
Failure to follow these instructions can result in property damage.

Blower Assemby

DSI Ignition Module

Blower Outlet Gasket

Tube Gasket

Electrode

Mica Window Assembly

Burner Cup Assembly

REAR VIEW

TOP VIEW

Pressure Switch

Transformer

50

Gas Valve

SECTION 13: REPLACEMENT PARTS

Description Part Number

Mica Window Assembly 02553203
Electrode Gasket 02558501
Tube Gasket 02568200
Burner Cup Assembly 03020100
Gas Valve (Natural) 90032500
Gas Valve (LP) 90032502
Electrode 90427400
DSI Ignition Module 90439500
Transformer 90436900K
Pressure Switch

(200) 90439801K
(115, 140, 175) 90439802K
(150) 90439803K
(60, 80, 100, 125) 90439805K

(40) 90439808K
Motor/Blower Assembly 90709700
Blower Outlet Gasket 90709801

51

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 14: GENERAL SPECIFICATIONS

14.1 Material Specification

14.1.1 Reflectors

.024 Aluminum
(Optional .024 Stainless Steel Type 304)

14.2 Heater Specifications

14.2.1 Ignition

Fully automatic spark ignition with safety shut-off.

14.3 Suspension Specifications

Hang heater with materials with a minimum working
load of 75 lbs (33 kg). See Page 12, Figure 12.

14.4 Controls Specifications

Time switches, thermostats, etc. can be wired into
the electrical supply. External controls supplied as an
optional extra.

General Specifications for BH-Series heaters are as follows:

End View

12.5"

(32 cm)

12.5"

(32 cm)

Heat Input Rate Length “A”

Side View

11"

(28 cm)

Reflector

Burner Tube

Turbulator (select models)

Minimum Length A

Recommended

Minimum Mounting Height*

Model (Btu/h) x (1000) Minimum Space Spot

BH-40 40 10' (3 m) 8-10' (2.4 - 3 m) 8'(2.4 m)

BH-60 60 20' (6 m) 10-12' (3 - 3.6 m) 9' (2.7 m)

BH-80 80 20' (6 m) 12-15' (3.6 - 4.5 m) 11' (3.3 m)

BH-100 100 30' (9 m) 12-15' (3.6 - 4.5 m) 12' (3.7 m)

BH-115 115 30' (9 m) 15-20' (4.5 - 6 m) 15' (4.6 m)

BH-125 125 40' (12 m) 15-20' (4.5 - 6 m) 15' (4.6 m)

BH-140 140 40' (12 m) 20-25' (6 - 7.6 m) 20' (6.1 m)

BH-150 150 50' (15 m) 20-25' (6 - 7.6 m) 20' (6.1 m)

BH-175 175 50' (15 m) 25' (7.6 m) 23' (7 m)

BH-200 200 60' (18 m) 25' (7.6 m) 25' (7.6 m)

*See Page 3, Section 3 for clearances to combustibles.

GAS PRESSURE AT MANIFOLD:

Natural Gas: 3.5" wc
LP Gas: 10.5" wc

PIPE CONNECTION:

1/2” NPT (for BH-40, 60, 80, 100, 115 & 125)
3/4” NPT (for BH- 140, 150,175 & 200)

DIMENSIONS:

Vent Connection Size: 4” (10 cm)
Outside Air Connection Size: 4” (10 cm)
Refer to figure above for dimensional information.

52

GAS INLET PRESSURE:
Natural Gas:

for BH-40, 60, 80, 100,
115, 125, 140, 150 4.6" wc Minimum
for BH-175, 200 5.0" wc Minimum

14.0" wc Maximum

LP Gas: 11.0" wc Minimum

14.0" wc Maximum

ELECTRICAL RATING (ALL MODELS):

120 V - 60 Hz, 1 A

SECTION 15: THE RAPID™ BH WARRANTY

SECTION 15: THE RAPID

™

BH WARRANTY

RAPID ENGINEERING WILL PAY FOR:

Within 42 months from date of shipment from Rapid
Engineering, replacement parts will be provided free of
charge for any part of the product which fails due to a
manufacturing or material defect.

Rapid Engineering will require the part in question to be
returned to the factory. Rapid Engineering will, at its
sole discretion, repair or replace after determining the
nature of the defect and disposition of part in question.

RAPID
of 18 months from date of shipment from Rapid
Engineering or the remaining RAPID

™

Replacement Parts are warranted for a period

™

BH warranty.

RAPID ENGINEERING WILL NOT PAY FOR:

Service trips, service calls and labor charges.
Shipment of replacement parts.
Claims where the total price of the goods have not

been paid.

Damage due to:

• Improper installation, operation or maintenance.

• Misuse, abuse, neglect, or modification of the

™

RAPID

• Use of the RAPID

BH in any way.

™

BH for other than its intended

purpose.

• Incorrect gas or electrical supply, accident, fire,
floods, acts of God, war, terrorism, or other casualty.

• Improper service, use of replacement parts or
accessories not specified by Rapid Engineering.

™

• Failure to install or maintain the RAPID

BH as
directed in the Installation, Operation and Service
manual.

™

• Relocation of the RAPID

™

• Use of the RAPID

BH in a corrosive atmosphere

BH after initial installation

containing contaminants.

™

• Use of the RAPID

BH in the vicinity of a

combustible or explosive material.

™

• Any defect in the RAPID

BH arising from a drawing,
design, or specification supplied by or on behalf of
the consumer.

• Damage incurred during shipment. Claim must be
filed with carrier.

WARRANTY IS VOID IF:

The RAPID™ BH is not installed by an electrician qualified
in the installation and service of control systems for
heating equipment.

You cannot prove original purchase date and required
annual maintenance history.

The data plate and/or serial number are removed,
defaced, modified or altered in any way.

The ownership of the

RAPID

This warranty is nontransferable.

Rapid Engineering is not permitted to inspect the
damaged controller and/or component parts.

™

BH is moved or transferred.

READ YOUR INSTALLATION, OPERATION AND
SERVICE MANUAL.

If you have questions about your controller, contact your
installing professional. Should you need Replacement
Parts or have additional questions, call or write
Rapid Engineering:

Rapid Engineering

1100 Seven Mile Road, NW
Comstock Park, MI 49321

616.784.0500

On the web at: www.rapidengineering.com

Rapid Engineering's liability, and your exclusive
remedy, under this warranty or any implied warranty
(including the implied warranties of merchantability
and fitness for a particular purpose) is limited to
providing replacement parts during the term of this
warranty. Some jurisdictions do not allow limitations on

how long an implied warranty lasts, so this limitation may
not apply to you. There are no rights, warranties or
conditions, expressed or implied, statutory or otherwise,
other than those contained in this warranty.

Rapid Engineering shall in no event be responsible for
incidental or consequential damages or incur liability
for damages in excess of the amount paid by you for
the RAPID

™ BH. Some jurisdictions do not allow the

exclusion or limitation of incidental or consequential
damages, so this limitation or exclusion may not apply to
you. This warranty gives you specific legal rights, and you
may also have other rights which vary from jurisdiction to
jurisdiction.

Rapid Engineering shall not be responsible for failure to
perform under the terms of this warranty if caused by
circumstances out of its control, including but not limited to
war, fire, flood, strike, government or court orders, acts of
God, terrorism, unavailability of supplies, parts or power.
No person is authorized to assume for Rapid Engineering
any other warranty, obligation or liability.

LIMITATIONS ON AUTHORITY OF
REPRESENTATIVES:

No representative of Rapid Engineering, other than an
Executive Officer, has authority to change or extend these
provisions. Changes or extensions shall be binding only if
confirmed in writing by
authorized Executive Officer.

Rapid Engineering's duly

53



Attach this information to a wall near the RAPID

Read the Installation, Operation, and Service Manual thoroughly before installation, operation, or service.

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.

Write the largest clearance dimensions with permanent ink according to your model number and configuration in the open spaces below.

heater.

OPERATING INSTRUCTIONS

1. STOP! Read all safety instructions on this information sheet.

2. Open the manual gas valve in the heater supply line.

3. Turn on electric power to the heater.

4. Set the thermostat to desired setting.

TO TURN OFF THE HEATER

1. Set the thermostat to off or the lowest setting.

IF THE HEATER WILL NOT OPERATE, TO ENSURE YOUR SAFETY,

FOLLOW THESE INSTRUCTIONS TO SHUT DOWN YOUR HEATER

1. Set the thermostat to off or the lowest setting.

2. Turn off electric power to the heater.

3. Turn off the manual gas valve in the heater supply line.

4. Call your registered installer/contractor qualified in the installation

and service of gas-fired heating equipment.

Some objects can catch fire or explode when placed close
to heater.

Keep all flammable objects, liquids and vapors the required
clearances to combustibles away from heater.

Failure to follow these instructions can result in death,
injury or property damage.

WARNING

Fire Hazard

Maintain ???? cm clearance

to the side and

???? cm clearance below

the heater from vehicles

and combustible materials.

Rapid Engineering

1100 Seven Mile Road, NW
Comstock Park, MI 49321
Telephone: [phone]
Fax: [phone]
Toll Free: 800.536.3461

Installation Code and Annual Inspections: All installations and service of RAPID products must be performed by a contractor qualified in the installation and service of gas-fired heating equipment and
conform to all requirements set forth in the RAPID manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment.

To help facilitate optimum performance and safety, Rapid Engineering recommends that a qualified contractor annually inspect your RAPID products and perform service where necessary, using only
RAPID replacement parts.

© 2005 ROBERTS GORDON® 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 wr itten permission of Roberts-Gordon.

www.rapidengineering.com Printed in U.S.A. P/N 91037920 Orig