Drive slide bar until tight.
End of slide bar should be
within tolerance listed below.
• Repeat Step 6.3 A - D until all tubes are assembled. See Page 19, Step 6.3.2.
Tighten slide bar as shown below.
10' ± 1'
(3 m ± .25 m)
Total Overall
Tube Length
7' 6" ± 1'
(2.3 m ± .25 m)
Model
Tube Length
Min im um
BH-4010' (3 m)
BH-6020' (6 m)
BH-8020' (6 m)
BH-10030' (9 m)
BH-11530' (9 m)
BH-12540' (12 m)
BH-14040' (12 m)
BH-15050' (15 m)
BH-17550' (15 m)
BH-20060' (18 m)
SECTION 6: HEATER INSTALLATION
Step 6.3.2 Coupling and Tube Assembly (Continued)
19
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
T
w
i
s
t
Pull String
Ta b
Fold tab around outside
of tube nearest to the vent to
hold turbulator in place.
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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-slipoverlap 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.
This section of three reflectors joined together must
be affixed to the tube with at least one reflector support
with tight screws.
Reflector
End Cap
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.
First Reflector
6"
(16 cm)
Overlap must be a
minimum of
6
" (16 cm).
Loose screws
loosened 1/16"
(.16 cm) to allow
slippage.
2 A
Slip Overlap
Reflector
Support
2 B
Slip Overlap
Reflector
Tight
Screws
3 B
Non-Slip Overlap
U-clip
(2 Clips per
Non-slip Overlap
Inside a Hanger)
Reflector
3 A
Non-Slip Overlap
Wire Form
Reflector Support
Strap
Tight
Sheet Metal
Screw
DescriptionPart Number
Reflector Support Package03050010
Wire Form91908004
Reflector Support Strap03050000
Screw #8 x 3/4"94320812
U-Clip Package91107720
Reflector End Cap027508XX
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.
To ensure proper expansion and contraction
movement of the reflectors, a combination of U-clips
and reflector supports are used. The positioning of
reflector supports and U-clips depend on the
individual installation. The following rules must be
observed.
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 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 6, Figure 7 through Page 7, Figure 9. When using a U-tube configuration,
the following additional rules must be adhered to:
• A minimum of 10' (3 m) on BH-60/80 and a
minimum of 15
150/175/200 is required between the burner and
the U-tube.
• The correct turbulator (See Page 20, 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 26, Figure 19.
'
(4.5 m) on BH-100/115/125/140/
24
FIGURE 18: U-Tube Heater Assembly Overview
U-tube
18" (46 cm)
Center to Center
U-clips
Reflector
End Caps
12
Burner
Reflector
Turbulator
(With Select
Models)
Tube Clamp
Package
Burner
Tube
Tube
U-tube
Support Bracket
Reflector
Support
Couplings
U-tube, Standard
Nut
Lock Washer
Lock Washer
Nut
U-bolt
12
12
U-tube,
Opposite 45°
Vent Adapter
1
U-tube,
45°
2
Tight U-bolt
4" (10 cm) u-bolt,
secured to burner tube
with 1/4" (.6 cm)
lockwashers and
1/4"(.6 cm) -20 hex nuts.
Loose U-bolt
4" (10 cm) u-bolt,
secured to bracket with
1/4" (.6 cm) lockwashers
and 1/4" (.6 cm)-20 hex
nuts on top and bottom to
allow for tube expansion
and contraction.
SECTION 7: OPTIONAL HEATER ACCESSORIES
25
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
LEGEND
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" (2.3 m)
Distance First Hanger
e = 10
'
(3.0 m)
Distance Between Hangers
f = 5' (1.5 m)
Distance Between Last Full Tube
Hanger and Half Tube Hanger
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.
U-tube
Burner
Reflector
Tube 10
' (3.0 m)
Tube/Reflector
Hanger
Coupling
Assembly
Tube 5' (1.5 m)**
c
b
de
g
h
40' (12.2 m) Tube Length
c
b
d
f
g
h
30' (9.1 m) Tube Length**
20
'
(6.1 m) Tube Length*
g
c
b
h
e
c
b
de
f
g
h
50' (15.2 m) Tube Length* **
Vent Adapter
(Not Shown)
FIGURE 19: U-Tube Heater Layout Overview
26
FIGURE 20: U-Tube Layout Overview (Continued)
g
c
b
de
h
e
f
g
c
b
de
h
ee
g
c
b
de
h
e
60' (18.3 m) Tube Length
70
' (21.3 m) Tube Length**
80
' (24.4 m) Tube Length
Tube
90° Elbow
Coupling
DescriptionPart Number
Elbow Package02718702
90° Elbow01335801
Coupling01312700
Reflector End Cap02750800
Reflector Joint Piece02750900
U-Clip Package91107720
Minimum Distance Required
Between Burner and Elbow
Model
Minimum
Distance
BH-4010' (3 m)
BH-6010' (3 m)
BH-8010' (3 m)
BH-10015' (4.5 m)
BH-11515' (4.5 m)
BH-12515' (4.5 m)
BH-14015' (4.5 m)
BH-15015' (4.5 m)
BH-17515' (4.5 m)
BH-20015' (4.5 m)
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Shield
DescriptionPart Number
Deco Grille Shield01365900
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" sheet metal screw be installed per
reflector extension to prevent it
from blowing over.
A
Reflector Side
Extension
Cut relief notches for tube
and reflector hangers.
Insert screw
here.
DescriptionPart Number
Reflector Side Extension01370412
Distance "A"Extension
MinimumMaximumPart No.Width
2" (4 cm)6" (15 cm)013704088" (20 cm)
6" (15 cm)10" (26 cm)0137041212" (30 cm)
10" (26 cm)14" (37 cm)0137041616" (40 cm)
Step 7.5.2 Frame Shield Installation
Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles
32
7.6 Protective Grille Installation
Silicone Cap
Grille
Finger
DescriptionPart Number
Grille Section08050001
Grille End Cap08050002
Silicone Cap91915951-6P
Bend up 90°.
Pull outward.
Grille
GrilleEndCap
A
B
C
D
Grille
Grille
End Cap
Reflector
FinalGrille
Section
40"
(101cm)
Step 7.6.1 Silicone Cap Installation
Step 7.6.2 Grille End Cap Installation
SECTION 7: OPTIONAL HEATER ACCESSORIES
Step 7.6.3 Grille Installation
33
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 8: VENTING
combustible wall must have an approved thimble
to conform with the above listed codes.
Vent pipe must be sloped downward away from the
heater 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 37, Section 8.9. When venting vertically, a maximum of
four heaters can be commonly vented. See Page 38, 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 35, Section 8.2 for further information. Unvented
operation also requires compliance with the
clearances to combustibles given on Page 8, Figure
12.
The bottom of the vent or air intake terminal shall not
be located less than 1' (0.3 m) above grade level.
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 National Fuel Gas Code
NFPA 54/ANSI Z223.1 - latest revision.
Canada: Refer to Natural Gas and Propane
Installation Code CSA B149.1 - latest revision.
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
34
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 gases.
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' (0.9 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' (0.3 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' (0.9 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.
SECTION 8: VENTING
WARNING
Combustion by-products contain a chemical
known to the State of California to cause
cancer and birth defects or other
reproductive harm.
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 Tjernlund VH1-4 (P/N
90502100) or equivalent, insulated vent terminal.
Follow the manufacturer's instructions for proper
installation.
FIGURE 22: Tube Termination
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.
For 6" (15 cm) common vents in either combustible
or noncombustible walls, use Tjernlund VH1-6 (P/N
90502101) or equivalent, insulated vent terminal.
Follow the manufacturer's instructions for proper
installation.
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 38, Section 8.10.
A vent shall not extend less than 2' (0.6m) 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.
35
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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.
Vent Adapter
SIDE VIEW
DescriptionPart Number
Vent Cap 4" (10 cm)90502300
8.7 Horizontal Ventilation 4'' (10 cm) Pipe
8.8 Vertical Ventilation 4'' (10 cm) Pipe
36
8.9 Common Side Wall Venting
4" (10 cm) Single Wall Pipe
Outside Wall
Vent Adapter
Sweeping 'T'
Connection
Sweeping 'Y'
Connection
Outside Wall
6" (15 cm) Single Wall Pipe
Vent Terminal
Tjernlund VH1-6 or Equivalent
Outside Wall
4" (10 cm) Single Wall Pipe
Vent Adapter
Vent Terminal
Tjernlund VH1-6 or Equivalent
Vent Adapter
Vent Adapter
TOP VIEW
4" (10 cm) Single Wall Pipe
6" (15 cm) Single Wall Pipe
DescriptionPart Number
Vent Terminal 6" (15 cm)90502101
SECTION 8: VENTING
Requirements:
• Maximum of two 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.
37
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
8.10 Common Vertical Venting
Requirements:
• Maximum of four heaters can be commonly
vented through the roof.
• Heaters must be of the same BTU output.
• Heaters must be controlled by a common
thermostat.
• Connections to a common stack must be
positioned to avoid direct opposition between
streams of combustion gases.
38
SECTION 8: VENTING
Band Clamp
(Recommended)
Flex Hose
(Recommended)
Vent Cap
Roof
4" (10 cm)
Single Wall Pipe
Burner
18" (46 cm)
Min.
DescriptionPart Number
Vent Cap 4" (10 cm)90502300
Band Clamp
(Recommended)
Flex Hose
(Recommended)
Vent Cap
Wall
4" (10 cm)
Single Wall Pipe
Burner
DescriptionPart Number
Vent Cap 4" (10 cm)90502300
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 35, 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
8.11.3 Horizontal Outside Air Supply for Single Heater Installation
39
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Sweeping 'T'
Connection
6" (15 cm) Single Wall Pipe
Vent Cap
4" (10 cm)
Single Wall Pipe
Band Clamp
(Recommended)
BurnerBurner
Flex Hose
(Recommended)
Flex Hose
(Recommended)
Roof
DescriptionPart Number
Vent Cap 6" (15 cm)90502302
Sweeping 'Y'
Connection
Vent Cap
Outside Wall
4" (10 cm) Single Wall Pipe
(Seal All Joints)
6" (15 cm) Single Wall Pipe
Flex Hose
(Recommended)
Band Clamp
(Recommended)
Burner
Burner
DescriptionPart Number
Vent Cap 6" (15 cm)90502302
8.11.4 Vertical Outside Air Supply for Double Heater Installation
Requirements:
• Heaters must be controlled by a common thermostat.
8.11.5 Horizontal Outside Air Supply for Double Heater Installation
Requirements:
• Heaters must be controlled by a common thermostat.
40
SECTION 9: GAS PIPING
WARNING
Fire Hazard
Tighten gas hose fittings to connect gas
supply according to Figure 23.
Gas hose can crack when twisted.
Gas hose moves during normal operation.
Use only 36" (91 cm) long connector of 1/2" or
3/4" nominal ID.
Connector supplied with heater for U.S.
models (not with Canadian models).
Failure to follow these instructions can result
in death, injury or property damage.
WARNING
Explosion Hazard
Leak test all components of gas piping
before operation.
Gas can leak if piping is not installed properly.
Do not high pressure test gas piping with
burner connected.
Failure to follow these instructions can result
in death, injury or property damage.
SECTION 9: GAS PIPING
Install the gas hose as shown in Figure 23. 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 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 23.
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.
Gas lines must meet applicable codes:
United States: The Flexible Stainless Steel Gas
Hose (US models) supplied with the heater is certified per the Standard for Connectors for Gas Appliances, ANSI Z21.24/CSA 6.10 - latest revision.
Canada: The Rubber Type 1 Gas Hose (Canadian
models) optional with the heater is certified as being
in compliance with the Standard for Elastomeric
Composite Hose and Hose Couplings for Conducting
Propane and Natural Gas, CAN/CGA 8.1 - Latest
revision.
• 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.
41
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
90° Pipe Elbow
(Not Included)
Shut-Off Valve (included with gas hose) must be parallel to burner gas inlet. The 3" (8 cm)
displacement shown is for the cold condition.
This displacement may reduce when the
system is fired.
CORRECT POSITIONS
Vertical (as shown left)
Alternate
positions
okay
Flexible Gas Hose
36" (91 cm) length
3" (8 cm)
max. displacement
Side View
Heater Movement
12"
(30 cm)
45°
Burner Assembly
(Shown Without Blower Assembly)
Pipe Nipple
Rear View
45°
CAUTION
Product Damage Hazard
Hold gas nipple securely with pipe wrench
when attaching gas hose.
Failure to follow these instructions can result
in product damage.
INCORRECT POSITIONS (WRONG INSTALLATION)
Heater Movement
Heater Movement
Heater MovementHeater Movement
DescriptionPart Number
1/2" Flexible Stainless Steel Gas Hose (US Models)91412200
3/4" Flexible Stainless Steel Gas Hose (US Models)91412204
1/2" Rubber Type 1 Gas Hose (Canadian Models)91412206
3/4" Rubber Type 1 Gas Hose (Canadian Models)91412207
FIGURE 23: Gas Connection with Flexible Gas Hose
42
SECTION 10: WIRING
DANGER
Electrical Shock Hazard
Disconnect electric before service or
maintenance.
Heater must be connected to a properly
grounded electrical source.
Failure to follow these instructions can
result in death or electrical shock.
L1
L2
Gnd.
NH
Gnd.
NH
Gnd.
Additional
Burners
120 V-60 Hz
Supply Circuit
Line Voltage Thermostat
Burner 1Burner 2
Maximum 5 Burners
Per Thermostat
10.1 Line Voltage Thermostat Wiring
SECTION 10: WIRING
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 44, Section 10.2. Heaters must be grounded in
accordance with applicable codes: United States:
Refer to National Electrical Code
®
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.
43
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
R
C
W
G
Y
1
2
3
4
5
6
COIL
L1
L2
Gnd.
N
H
Gnd.
N
H
Gnd.
Additional
Burners
120 V-60 Hz
Supply Circuit
LowVoltage Thermostat
Burner 1
Burner 2
Maximum 8 Burners
Per Relay
Black
SPST Transformer Relay
Black
Red
White
COIL
FRONT VIEWBACK VIEW
DescriptionPart Number
SPST Transformer Relay90417600
Low Voltage Thermostat90425100
10.2 Low Voltage Thermostat Wiring
44
10.3 Internal Wiring
Pressure Switch
BLUE
BLUE
BLUE 24 V A/C
BLACKFlame Sense
YELLOWGround
BROWN Main Valve
Electrode
BLACK
BLACK
BLACK
BROWN
YELLOW
YELLOW
YELLOW
GREEN
GREEN
GREEN
WHITE
WHITE
DSI Ignition Module
NO
C
Gas Valve
Burner Ground
Blower Connection
Motor/Blower
Electrical Connection
120 V-60 Hz
L1
L2
L
G
N
Transformer
SECTION 10: WIRING
45
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Power
Valve
Sense
Ground
Spark
Transformer
Blower
Pressure
Switch
Ignition Module
Gas Valve
Power Supply
120 V - 60 Hz
Gap
Electrode
120 V
24 V
Conduit Hole
BX or Romex Connector
Burner Box
Internal Wire Bundle
Green
White
Black
L1
L2
Gnd.
Connect wires together with
suitable approved wire connections.
Green to Gnd.
White to L2
Black to L1
Electrical Cord or
Flexible Conduit
10.4 Ladder Diagram
10.5 Electrical Connection to the Burner
46
SECTION 11: OPERATIONAND MAINTENANCE
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
Edges are sharp.
WARNING
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Burn Hazard
Allow heater to cool
before service or
maintenance.
Tubing may still be hot
after operation.
Explosion Hazard
Turn off gas supply to
heater before service
or maintenance.
DANGER
Electrical Shock Hazard
Disconnect electric
before service or
maintenance.
Heater must be
connected to a properly
grounded electrical
source.
SECTION 11: OPERATION AND MAINTENANCE
raising it again to desired temperature, or by
This heater is equipped with a direct spark ignition
system.
11.1 S e quence 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.
7. After lockout, the control can be reset by turning
down thermostat for five seconds, and then
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.
11.4 Pre-Season Maintenance and Annual
Inspection
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.
47
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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 49, Section 11.5 for suggested
items to inspect.
48
11.5 Maintenance Checklist
SECTION 11: OPERATIONAND MAINTENANCE
Installation Code and Annual Inspections:
All installation and service of ROBERTS GORDON
equipment must be performed by a contractor
qualified in the installation and service of equipment
sold and supplied by Roberts-Gordon and conform to
all requirements set forth in the ROBERTS
GORDON
®
manuals and all applicable governmental
To help facilitate optimum performance and safety,
®
Roberts-Gordon recommends that a qualified
contractor conduct, at a minimum, annual
inspections of your ROBERTS GORDON
®
equipment
and perform service where necessary, using only
replacement parts sold and supplied by RobertsGordon.
authorities pertaining to the installation, service and
operation of the equipment.
The Vicinity of the HeaterDo not store or use flammable objects, liquids or vapors near the heater.
Immediately remove these items if they are present.
See Page 4, 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 4, Section 3.
ReflectorSupport reflector with reflector hanger and support strap.
Reflector must not touch tube.
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 22, Section 6.5.1.
Clean outside surface with a damp cloth.
Vent PipeVenting 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 34, Section 8.
Outside Air InletInlet 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.
TubesMake sure there are no cracks.
Make sure tubes are connected and suspended securely.
See Page 13, Section 6.
Make sure there is no sagging, bending or distortion.
Clean or replace as required.
Gas LineCheck for gas leaks. See Page 41, 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
49
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Burner Cup and OrificeClear of obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
ElectrodeReplace if there are cracked ceramics, excessive carbon residue, or erosion
of the electrode.
The electrode gap should be 1/8" (3.2 mm).
ThermostatThere should be no exposed wire or damage to the thermostat.
See Page 43, Section 10.
Suspension PointsMake sure the heater is hanging securely. Look for signs of wear on the chain
or ceiling.
See Page 14, Figure 14.
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 31, Section 7.5and Page 33, Section 7.6
Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 32, 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 31, Section 7.4.
Make sure shield is installed correctly and secured in place if necessary.
See Page 31, Section 7.4.
Wall TagIf wall tag is present, make sure it is legible and accurate. Please contact
Roberts-Gordon LLC or your ROBERTS GORDON
®
independent distributor,
if you need a wall tag. See Page 3, Section 2.1
50
SECTION 12: TROUBLESHOOTING
DANGER
Electrical Shock Hazard
Disconnect electric before service or
maintenance.
Heater must be connected to a properly
grounded electrical source.
Failure to follow these instructions can
result in death or electrical shock.
Fire Hazard
Keep all flammable
objects, liquids and
vapors the minimum
required clearances to
combustibles away
from heater.
Some objects will catch
fire or explode when
placed close to heater.
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
Edges are sharp.
WARNING
Failure to follow these instructions can result in death, injury or property damage.
Burn Hazard
Allow heater to cool
before service or
maintenance.
Tubing may still be hot
after operation.
Explosion Hazard
Turn off gas supply to
heater before service
or maintenance.
SECTION 12: TROUBLESHOOTIN G
51
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Replace pressure switchYES
NO
Replace transformer.
YES
NO
Remove obstruction.YES
NO
YES
NO
Replace blower.
NO
YES
NO
YESNO
YES
YES
NO
NO
YES
Is there spark at the igniter?
YES
NO
NOIs the blower obstructed?
Remove obstruction.
NO
NO
YES
Replace ignition module.
With the blue and yellow
wires still removed, is the
voltage at the transformer
black and white leads 120 V?
YES
Is there power 120 V at
the burner?
Turn up thermostat.
Does the blower turn on?
Remove the blue and yellow
wires from the transformer.
Is there 24 V at the
transformer secondary?
Reconnect transformer
wires. Place a jumper wire
across the pressure switch.
Is there a spark?
Check wiring between the
power cord, blower motor
and transformer.
Replace igniter and
ignition wire as needed.
Carefully reset spark gap
to 1/8"
Are the air hoses to the
pressure switch secure and
leak free?
Repair, replace, or tighten
hoses as necessary.
Is the vent pipe or the inlet of
the burner obstructed?
Is the igniter gap
set at 1/8"?
Unplug burner and check
igniter and ignition wire. Are
they damaged?
Blower bearings may have
failed. Replace blower.
Check relay wiring
(if applicable) and wiring
to the burner.
Check thermostat wiring
and replace thermostat if
necessary.
Place a jumper across the
thermostat terminals.
Does the blower turn on?
Unplug burner. Does the
blower turn freely?
12.1 Troubleshooting Flow Chart
52
SECTION 12: TROUBLESHOOTIN G
53
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
10.5"
Natural
Propane
6
5
4
3
2
1
0
1
2
3
4
5
6
3.5"
6
5
4
3
2
1
0
1
2
3
4
5
6
Top View of Heater
Manometer
12.2 Manifold Gas Pressure Setting
54
SECTION 13: REPLACEMENT PARTS
Carbon Monoxide Hazard
WARNING
Use only genuine ROBERTS GORDON® replacement parts per this installation, operation and
service manual.
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Explosion Hazard
DANGER
Electrical Shock Hazard
Fire Hazard
SECTION 13: REPLACEMENT PARTS
55
BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
Blower Outlet Gasket
REAR VIEW
TOP VIEW
DSIIgnition Module
Blower Assemby
Electrode
Burner Cup Assembly
Gas Valve
Pressure Switch
Transformer
Mica Window Assembly
Tube Gasket
56
SECTION 13: REPLACEMENT PARTS
DescriptionPart Number
Mica Window Assembly02553203
Electrode Gasket02558501
Tube Gasket02568200
Burner Cup Assembly03020100
Gas Valve (Natural)90032500
Gas Valve (LP)90032502
Electrode90427400
DSI Ignition Module90439500K
Transformer90436900K
Pressure Switch
Vent Connection Size: 4" (10 cm)
Outside Air Connection Size: 4" (10 cm)
Refer to figure above for dimensional information.
58
GAS INLET PRESSURE:
Natural Gas:
for BH-40, 60, 80, 100,
115, 125, 140, 1504.6" wc Minimum
for BH-175, 2005.0" wc Minimum
LP Gas:11.0" wc Minimum
ELECTRICAL RATING (ALL MODELS):
120 V - 60 Hz, 1 A
14.0" wc Maximum
14.0" wc Maximum
SECTION 15: THE ROBERTS GORDON® GORDONRAY® BH WARRANTY
®
SECTION 15: THE ROBERTS GORDON
GORDONRAY
®
BH WARRANTY
ROBERTS-GORDON LLC WILL PAY FOR:
Within 36 months from date of purchase by buyer or 42
months from date of shipment by Roberts-Gordon LLC
(whichever occurs first), replacement parts will be
provided free of charge for any part of the product which
fails due to a manufacturing or material defect.
Roberts-Gordon LLC will require the part in question to be
returned to the factory. Roberts-Gordon LLC will, at its sole
discretion, repair or replace after determining the nature of
the defect and disposition of part in question.
®
ROBERTS GORDON
Replacement Parts are warranted
for a period of 12 months from date of shipment from
Roberts-Gordon LLC or the remaining ROBERTS
GORDON
®
GORDONRAY® BH warranty.
ROBERTS-GORDON LLC 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
ROBERTS GORDON
®
GORDONRAY® BH in any
way.
• Use of the ROBERTS GORDON
®
GORDONRAY®
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 Roberts-Gordon.
• Failure to install or maintain the
ROBERTS GORDON
®
GORDONRAY® BH as
directed in the Installation, Operation and Service
Manual.
• Relocation of the ROBERTS GORDON
GORDONRAY
• Use of the ROBERTS GORDON
®
BH after initial installation
®
®
GORDONRAY®
BH in a corrosive atmosphere containing
contaminants.
• Use of the ROBERTS GORDON
®
GORDONRAY®
BH in the vicinity of a combustible or explosive
material.
• Any defect in the ROBERTS GORDON
GORDONRAY
®
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 ROBERTS GORDON® GORDONRAY® BH is not
installed by an contractor qualified in the installation and
service of gas fired 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 ROBERTS GORDON
®
GORDONRAY® BH is moved or transferred. This warranty
is non-transferable.
Roberts-Gordon LLC is not permitted to inspect the
damaged equipment and/or component parts.
READ YOUR INSTALLATION, OPERATION AND
SERVICE MANUAL.
If you have questions about your equipment, contact your
installing professional. Should you need Replacement
Parts or have additional questions, call or write:
Roberts-Gordon LLC
1250 William Street
P. O . B o x 4 4
Buffalo, New York 14240-0044
716.852.4400
On the web at: www.rg-inc.com
Roberts-Gordon LLC'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.
Roberts-Gordon LLC 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 ROBERTS GORDON
®
GORDONRAY® 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.
Roberts-Gordon LLC 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 Roberts-Gordon
LLC any other warranty, obligation or liability.
LIMITATIONS ON AUTHORITY OF
REPRESENTATIVES:
No representative of Roberts-Gordon LLC, 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 Roberts-Gordon LLC's duly
authorized Executive Officer.
Model#:_______________________ Serial #:___________________________ Fuel:____________ Installation Date:__________
Type of Installation (check one):
o Automotive o Manufacturing o Warehouse o Recreational o Aircraft
o Public Building o Office o Retail o Agricultural o Other______________
Mail or Fax to:
Roberts Gordon LLC •1250 William Street, P.O. Box 44 • Buffalo, NY 14240-0044 • Phone: 716-852-4400 • Fax: 716-852-0854
Toll Free: 800-828-7450 • www.rg-inc.com
Installation Code and Annual Inspections: All installation and service of ROBERTS GORDON® equipment must be performed by a
contractor qualified in the installation and service of equipment sold and supplied by Roberts-Gordon and conform to all
requirements set forth in the ROBERTS GORDON
®
manuals and all applicable governmental authorities pertaining to the
installation, service and operation of the equipment.
To help facilitate optimum performance and safety, Roberts-Gordonrecommends that a qualified contractor conduct, at a
minimum, annual inspections of your ROBERTS GORDON
®
equipment and perform service where necessary, using only
replacement partssold and supplied by Roberts-Gordon.
These products are not forresidential use.
This product is intended to assist licensed professionals in the exercise of their professional judgment.
herein my be reproduced or
copied in any form or by any means – graphic, electronic, or mechanical, including photcopying, recording, taping, or informationstorage and retrieval systems – without written permission of Roberts Gordon LLC. Printed in
the U.S.A.
Infrared Heating
Maintain clearance
to the side and
clearance below
the heater from vehicles
and combustible materials.
www.rg-inc.com Printed in U.S.A. P/N 91037912 Rev. H
Attach this information to a wall near the ROBERTS GORDON
®
heater.
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.
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.
1. Set the thermostat to off or the lowest setting.
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.
IF THE HEATER WILL NOT OPERATE, TO ENSURE YOUR SAFETY,
FOLLOW THESE INSTRUCTIONS TO SHUT DOWN YOUR HEATER
Fire Hazard
Keep all flammable objects, liquids and vapors the minimum
required clearances to combustibles away from heater.
Some objects will catch fire or explode when placed close to
heater.
Failure to follow these instructions can result in death, injury
or property damage.
TO TURN OFF THE HEATER
Service Telephone: +44 (0)121 506 7709
Service Fax: +44 (0)121 506 7702
E-mail: uksales@rg-inc.com
E-mail: export@rg-inc.com
Roberts-Gordon LLC
1250 William Street
P.O. Box 44
Buffalo, NY 14240-0044 USA
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
WARNING
Roberts-Gordon Europe Limited
Unit A, Kings Hill Business Park
Darlaston Road, Wednesbury
West Midlands WS10 7SH UK
Telephone: +44 (0)121 506 7700
Fax: +44 (0)121 506 7701
®
Installation Code and Annual Inspections:
All installation and service of ROBERTS GORDON® equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Roberts-Gordon and
conform to all requirements set forth in the ROBERTS GORDON
®
manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help
facilitate optimum performance and safety, Roberts-Gordonrecommends that a qualified contractor conduct, at a minimum, annual inspections of your ROBERTS GORDON
®
equipment and
perform service where necessary, using only replacement partssold and supplied by Roberts-Gordon.
Further Information: Applications, engineering and detailed guidance onsystems design, installation and equipment performance is available through ROBERTS GORDON® representatives.
Please contact us for any further information you may require, including the Installation, Operation and Service Manual.