Roberts Gorden Linear Heater User manual

SECTION 6: HEATER INSTALLATION
15
FIGURE 15: Linear Heater Assembly Overview
Tube
Reflector
Reflector End Cap
Reflector Support
Burner
Coupling
U-Clips
Burner Tube
Tube and Reflector Hanger
Tube Clamp
Pac age
Vent Adapter
Turbulator
(With Select Models)

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
16
FIGURE 16: Linear Heater Layout Overview
a = 14" (36 cm)
reflector width (not shown)
b = 2" (5 cm)
end cap to burner
c = 2" (5 cm)
end cap to hanger
d= 7
' 6" (2.3 m)
distance first hanger
e= 10 ' (3 m)
distance between hangers
f = 12.5" (32 cm)
burner height
g = 11" (28 cm)
burner length
Vent Adapter
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling Assembly
LEGEND
g
c
b
d
f
g
c
b
de
f
g
c
b
de
f
e
g
c
b
de
f
e e
g
c
b
de
f
e e e
10' (3 m) Tube Length
20' (6.1 m) Tube Length
30' (9.1 m) Tube Length
40' (12.2 m) Tube Length
50' (15.2 m) Tube Length

SECTION 6: HEATER INSTALLATION
17
FIGURE 17: Linear Heater Layout Overview (Continued)
Step 6.1 Burner Tube Installation
g
c
b
de
f
e e e e
g
c
b
de
f
e e e e e
g
c
b
de
f
e e e e e e
60' (18.3 m) Tube Length
70' (21. 3 m) Tube Length
80' (24.4 m) Tube Length
7' 6" ± 1'
(229 cm ± 25 cm)
NOTE:
Tubing requires a downward
slope of 1/2" (13 mm)
per 20' (6 m) away
from burner.
S-Hoo
Burner Tube
Hanger
Offset mounting
hole must be
to the top.
Weld seam
must be to the
bottom of the tube.
Description Part Number
Burner Tube 03051XXX
S-Hook 91907302
Tube/Reflector Hanger 03090100

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
18
Step 6.2 Tube Clamp Package Installation
Step 6.3 Couplingand Tube Assembly
Bolt
Tube Clamp
Flat
Washer
Nut
(Torque 120 in/lb
13.56 Nm)
Description Part Number
Tube Clamp Package01318901
Tube Clamp 01396801
Bolt 97113940
Flat Washer 95211600
Nut 92113900
Tube
Tube
Orient coupling so that
the impact bloc is in the
2:00 or 10:00 ocloc
positions.
Closed
Open
Tab
3" (8 cm) to
4" (10 cm)
Slide Bar/Coupling Loc
Coupling
Wide End
Coupling
Tube
Slide Bar/Coupling Loc
AClose coupling
with tab. BStart slide bar/coupling lock onto coupling.
CInsert tubes into coupling. DTighten coupling to join tubes.
Description Part Number
Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube 91409XXX

SECTION 6: HEATER INSTALLATION
19
Step 6.3.1 Couplingand Tube Assembly (Continued)
Step 6.3.2 Couplingand Tube Assembly (Continued)
Incorrect slide bar
position
Correct slide bar
dimensions
± 2" (5 cm)
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
Minimum
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)

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
20
Step 6.4 Turbulator Installation
T
w
i
s
t
Pull String
Tab
Fold tab around outside
of tube nearest to the vent to
hold turbulator in place.
Turbulator
Section
Turbulator
Adapter
Description Part Number
Turbulator Adapter 2.5' (76.2 cm) 03051503
Turbulator Section 2' (61 cm) 03051504
Turbulator Section 2.5' (76.2 cm)(Stainless) 03051505
Tube 91409XXX
Turbulator must be installed in the last
standard section of tube. Turbulator is
not required on the BH-125/150/175/200.
Turbulator Installation
Model Tube Section
BH-40 1st 10' (3 m) Section
BH-60 2nd 10' (3 m) Section
BH-80 2nd 10' (3 m) Section
BH-100 3rd 10' (3 m) Section
BH-115 3rd 10' (3 m) Section
BH-125 N/A
BH-140 4th 10' (3 m) Section
BH-150 N/A
BH-175 N/A
BH-200 N/A
Turbulator section 2.5'
(76.2 cm) (stainless) used in
BH-40 heaters must be in the
section of turbulator nearest
to the burner.

SECTION 6: HEATER INSTALLATION
21
Step 6.5 Reflector Installation
WARNING
Fire Hazard
Support reflector with reflector hanger
and support strap.
Reflector must not touch tube.
Failure to follow these instructions can result
in death, injury or property damage.
Hanger
Burner Tube
Reflector
Description Part Number
Tube/Reflector Hanger 03090100
Burner Tube 03051XXX
Reflector 02750303
NOTE: All tube surfaces must be covered
by a reflector, except for a U-tube.

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
22
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.
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.
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
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

SECTION 6: HEATER INSTALLATION
23
Step 6.6 Burner Installation
Loc
Washer
Gas et
Burner
Bolt
(Torque 120 in/lb
13.56 Nm)
S-hoo
Burner Tube
Extra chain min.
12" (30 cm)
Description Part Number
Bolt 94273914
Burner 071XXXXX
Lock Washer 96411600
Gasket 02568200

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
24
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
' (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 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.
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
25
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
Pac age Burner
Tube
Tube
U-tube
Support Brac et
Reflector
Support
Couplings
U-tube Standard
Nut
Loc Washer
Loc Washer
Nut
U-bolt
12
12
U-tube
Opposite 45°
Vent Adapter
1
U-tube
45°
2Tight U-bolt
4" (10 cm) u-bolt,
secured to burner tube
with 1/4" (.6 cm)
loc washers and
1/4"(.6 cm) -20 hex nuts.
Loose U-bolt
4" (10 cm) u-bolt,
secured to brac et with
1/4" (.6 cm) loc washers
and 1/4" (.6 cm)-20 hex
nuts on top and bottom to
allow for tube expansion
and contraction.

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
26
FIGURE 19: U-Tube Heater Layout Overview
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
df
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)

SECTION 7: OPTIONAL HEATER ACCESSORIES
27
FIGURE 20: U-Tube Layout Overview (Continued)
7.2 Elbow Package Configuration
Step 7.2.1 Elbow Installation
g
c
b
de
h
ef
g
c
b
de
h
e e
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
Description Part Number
Elbow Package 02718702
90° Elbow 01335801
Coupling 01312700
Reflector End Cap 02750800
Reflector Joint Piece 02750900
U-Clip Package 91107720
Minimum Distance Required
Between Burner and Elbow
Model Minimum
Distance
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)

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
28
Step 7.2.2 Elbow Installation
Step 7.2.3 Reflector Joint Installation
Step 7.2.4 Reflector Joint Installation
Tube
Coupling
Reflector
Reflector
Joint
Flatten Edge
1" (2.5 cm)
Maximum
Scribe
Contour
Cut away contour
with tin snips.
Punch/drill six 3/32" (2 mm) holes.

SECTION 7: OPTIONAL HEATER ACCESSORIES
29
Step 7.2.5 Reflector Joint Detail
FIGURE 21: Reflector Joint Detail
Install reflector
end cap.
Attach reflector joint
with six #8 sheet
metal screws.
Reflector
Reflector
Joint

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
30
7.3 Reflector Side Extension
Step 7.3.1 Bracket Installation
Step 7.3.2 Side Reflector Installation
Reflector Side
Extension Brac et
(2 per Reflector)
Use additional supports
in high air movement
applications.
Tube and Reflector Hanger
ReflectorTube
Reflector Support
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
Retainer Clip
(2 per Side)
Cut relief notches for
supports and hangers.
Reflector Side Extension
#8 x 3/8 (3.9 x 9.5 mm) Sheet Metal Screw

SECTION 7: OPTIONAL HEATER ACCESSORIES
31
7.4 Lower Clearance Shield Installation
Step 7.4.1 Shield Support Strap Assembly
7.5 Two-Foot Decorative Grille Installation
Step 7.5.1 Grille Installation
12"
(30 cm)
Reflector
Lower Clearance Shield
17"
(43 cm)
Washers
Screws
Locknuts
Align Pilot Holes
Description Part Number
Lower Clearance Shield Package 01397501
Shield Support Strap 01397500
Lower Clearance Shield 8' (2.4 m) 02793000
Locknut #8 92311400
Flat Washer #8 95310800
Screw #8 x 3/8'' 93511406
Suspended Ceiling Frame
Tube
2' x 4' (.6 m x 1.2 m) Aluminum Grille
Reflector
Tube and Reflector
Hanger
Description Part Number
Aluminum Grille 2' x 4' (61 x 122 cm) 91407000

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
32
Step 7.5.2 Frame Shield Installation
Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles
Shield
Description Part Number
Deco Grille Shield 01365900
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.
Description Part Number
Reflector Side Extension 01370412
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)

SECTION 7: OPTIONAL HEATER ACCESSORIES
33
7.6 Protective Grille Installation
Step 7.6.1 Silicone Cap Installation
Step 7.6.2 Grille End Cap Installation
Step 7.6.3 Grille Installation
Silicone Cap
Grille
Finger
Description Part Number
Grille Section 08050001
Grille End Cap 08050002
Silicone Cap 91915951-6P
Bend up 90°.
Pull outward.
GrilleGrille End Cap
AB
CD
Grille
Grille
End Cap
Reflector
Final Grille
Section
40"
101 cm)

BH-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
34
SECTION 8: VENTING
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
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.
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.
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.