Brant Radiant Heaters HL2 Series User manual

!
WARNING
Pour Votre Sécurité
Si vous sentez le gaz:
• Fenêtres ouvertes.
• Ne touchez pas d’échanges électriques.
• Éteignez n’importe quelle flamme ouverte.
• N’essayez pas d’éclairer d’appareils.
• Appelez immédiatement votre fournisseur de gaz
d’a les voisins téléphonent.
Brant Radiant Heaters, Ltd.
LIOHL2-REV-00 06-15
HL2 Series
Gas-Fired Infrared Tube Heater
WARNING: Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or death. Read the
installation, operating and maintence instructions thoroughly before
installing or servicing this equipment.
AVERTISSEMENT: Une installation, un réglage, une modification, une
réparation ou un entretien incorrect peut entraîner des dommages matériel,
des blessures ou la mort. lisez attentivement les instructions d’installation,
de fonctionnement et d’entretien avant de procéder à l’installation ou à
l’entretien de cet équipement.
INSTALLER: Present this manual to the end user. Keep these instructions in a clean and dry place for future reference.
Model#: Serial #:
(located on rating label)
This heater must be installed and serviced by trained gas installation and service personnel only.
Failure to comply could result in personal injury, asphyxiation, death, fire or property damage.
In locations used for the storage of combustible materials, signs must be posted to specify the
maximum permissible stacking height to maintain the required clearances from the heater to the
combustibles. Signs must either be posted adjacent to the heater thermostats or in the absence
of such thermostats, in a conspicuous location.
Not for residential use! Do not use this heater in the home, sleeping quarters, attached
garages, etc. Installation of a commercial tube heater system in residential indoor spaces
may result in property damage, serious injury, asphyxiation or death.
Cet appareil de chauffage doit être installé et entretenu par l’installation à gaz formée et le personnel de
service seulement. L’échec de se soumettre pourrait aboutir à la blessure personnelle, l’asphyxie, la mort, le
feu ou des dégâts de propriété.
Dans des emplacements utilisés pour le stockage de matériels combustibles, les signes doivent être postés
pour spécifier la hauteur d’entassement permise maximale pour maintenir les dégagements exigés de
l’appareil de chauffage au combustibles. Les signes doivent ou être postés adjacents aux thermostats
d’appareil de chauffage ou en absence de tels thermostats, dans un emplacement remarquable.
Pas pour utilisation résidentielle! N’utilisez pas cet appareil de chauffage dans la maison, des chambres
à coucher, des garages attachés, etc. L’installation d’un système d’appareil de chauffage de tube
commercial dans des espaces intérieurs résidentiels peut aboutir aux dégâts de propriété, la
blessure grave, l’asphyxie ou la mort.
!
AVERTISSEMENT
For Your Safety
If you smell gas:
• Open windows.
• Do not touch electrical switches.
• Extinguish any open flame.
• Do not try to light any appliances.
• Immediately call your gas supplier from a
neighbours phone.

3
HL2 Series
Contents
1.0 Introduction .....................................................................4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Heater Components..........................................................4
Product Specifications........................................................5
2.0 Safety ..........................................................................6
Safety Labels and Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warning Symbols............................................................8
Applications ................................................................8
Standards, Certifications and Government Regulations..............................9
Clearance to Combustibles ....................................................11
3.0 Installation ......................................................................13
Design Considerations and Prechecks...........................................13
Recommended Mounting Heights and Coverages..................................15
Hanger Placement and Suspension .............................................16
Radiant Tube Assembly.......................................................20
Optional Elbow or U-Bend Accessory Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Burner Control Box Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Reflector Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Baffle Assembly and Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Final Heater Assembly .......................................................27
Venting ...................................................................28
Combustion Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Separated Combustion Systems ...............................................36
Combustion Air Supply - Room Air ..............................................37
Optional Unvented Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Gas Supply Installation Instructions .............................................39
Leak Testing................................................................44
Electrical Requirements.......................................................45
Thermostat.................................................................46
Wiring.....................................................................47
Unit-Start-Up (Commissioning) .................................................50
High Altitude Operation .......................................................51
4.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Sequence of Operation .......................................................53
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5.0 Troubleshooting Guide............................................................56
6.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Routine Inspection...........................................................60
Heater Components and Parts List..............................................62
7.0 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
8.0 Kit Contents Check List ...........................................................68

4
HL2 Series
1.0 Introduction
Tube Hanger
Reflector
Reflector Center Support
10’ Primary/
Secondary
Combustion
Chamber(s)
Baffles
Reflector End Cap with Clips*
Tube Clamp
Burner Control Box
Flexible Type 1 Rubber Hose
Radiant
Tube(s)
Figure 1.1 • Heater Components *
Igniter/Sensor Box
Chains are not provided in kit.
Optional accessory. P/N: THCS
16” Burner Tube
* Not all items illustrated may be provided with your heater.
Refer to kit contents on last page of the Series Manual.
Tube Hanger
Reflector
Tension
Spring*
Overview
The intent of this manual is to provide information regarding general safety, installation, operation and maintenance
of the tube heater. You must read, and understand, the instructions and safety warnings in this manual before
installing the tube heater. Additional literature on this and other products is available
at www.brantradiant.com.
Heater Components
Prior to installation, verify that the heater’s gas type and voltage (as listed on the rating plate) match that of your
application. Also verify that you have received all heater contents included with your tube heater. Reference last
page for a list of the kit contents for your model heater. Materials not included in the heater kit contents (e.g.,
screws, vent material, terminals, etc.) are the responsibility of the installer. Notify your product representative or
Brant Radiant Heaters Ltd. of any discrepancy or missing kit contents prior to installing unit.
1.0 Introduction • Overview • Heater Components

5
HL2 Series
Model Number Gas Type (select one) BTU/H (High Fire) BTU/H (Low Fire) Straight Length U-Tube Length Standard Weight (lbs.) Stainless Steel Weight (lbs.) Recommended Mounting Height Combustion Chamber (Black Coated) Radiant Emitter Tube(s) (Black Coated) Radiant Surface Area (sq. ft.) 36” Baffle Sections
HL2-20-65 N or LP 65,000 50,000 21’-7” 13’-0” 120 N/A 9’ to 14’ Alum Alum 20.2 5
HL2-20-75 N or LP 75,000 50,000 21’-7” 13’-0” 120 145 10’ to 15’ Alum Alum 20.2 5
HL2-20-80 N or LP 80,000 65,000 21’-7” 13’-0” 120 N/A 8’ to 14’ Alum Alum 20.2 5
HL2-20-100 N or LP 96,000 65,000 21’-7” 13’-0” 120 N/A 11’ to 18’ Alum Alum 20.2 5
HL2-30-65 N or LP 65,000 50,000 31’-3” **17’-8” 160 N/A 10’ to 15’ Alum Alum 30.4 4
HL2-30-75 N or LP 75,000 50,000 31’-3” **17’-8” 160 195 11’ to 18’ Alum Alum 30.4 4
HL2-30-80 N or LP 80,000 65,000 31’-3” **17’-8’ 160 N/A 8’ to 14’ Alum Alum 30.4 5
HL2-30-100 N or LP 100,000 65,000 31’-3” **17’-8” 160 195 12’ to 20’ Alum Alum 30.4 5
HL2-30-125 N or LP 125,000 95,000 31’-3” **17’-8” 160 N/A 13’ to 23’ Alum Alum 30.4 5
HL2-40-65 N or LP 65,000 50,000 40’-11” 22’-8” 190 N/A 11’ to 18’ Alum Alum 40.5 2
HL2-40-75 N or LP 75,000 50,000 40’-11” 22’-8” 190 235 11’ to 18’ Alum Alum 40.5 2
HL2-40-80 N or LP 80,000 65,000 40’-11” 22’-8” 190 N/A 8’ to 14’ Alum Alum 40.5 4
HL2-40-100 N or LP 100,000 65,000 40’-11” 22’-8” 190 235 12’ to 20’ Alum Alum 40.5 4
HL2-40-125 N or LP 125,000 95,000 40’-11” 22’-8” 190 235 13’ to 23’ Alum Alum 40.5 4
HL2-40-150 N or LP * 150,000 100,000 40’-11” 22’-8” 190 235 14’ to 25’ Titan Alum 40.5 4
HL2-40-175 N or LP * 175,000 125,000 40’-11” 22’-8” 190 N/A 15’ to 27’ Titan Alum 40.5 4
HL2-50-100 N or LP 100,000 65,000 50’-7” **27’-4” 235 N/A 15’ to 27’ Alum Alum 50.6 2
HL2-50-125 N or LP 125,000 95,000 50’-7” **27’-4” 235 290 15’ to 27’ Alum Alum 50.6 4
HL2-50-150 N or LP * 150,000 100,000 50’-7” **27’-4” 235 290 15’ to 27’ Titan Alum 50.6 4
HL2-50-175 N or LP * 175,000 125,000 50’-7” **27’-4” 235 N/A 16’ to 30’ Titan Alum 50.6 2
HL2-50-200 N or LP * 200,000 145,000 50’-7” **27’-4” 235 N/A 17’ to 35’ Titan Alum 50.6 2
HL2-60-150 N or LP 150,000 100,000 60’-3” 32’-4” 265 330 16’ to 30’ Titan Alum 60.7 2
HL2-60-175 N orLP * 175,000 125,000 60’-3” 32’-4” 265 N/A 16’ to 30’ Titan Alum 60.7 2
HL2-60-200 N or LP * 200,000 145,000 60’-3” 32’-4” 265 N/A 17’ to 35’ Titan Alum 60.7 2
HL2-70-175 N or LP * 175,000 125,000 69’-11” **37’-2” 300 N/A 19’ to 42’ Titan Alum 70.9 2
HL2-70-200 N or LP * 200,000 145,000 69’-11” **37’-2” 300 N/A 19’ to 42’ Titan Alum 70.9 2
* Model requires stainless steel tube clamp (P/N: TP-220) to be located at the seam between the primary
combustion chamber and the secondary combustion tube downstream of the burner control box.
** Model requires 5EA-SUB accessory package when installing in a ‘U’ configuration (P/N: TF1B).
Titan = Black coated titanium stabilized aluminized steel.
Alum = Black coated aluminized treated steel.
Product Specifications
Chart 1.1 • HL2 Series Specifications
1.0 Introduction • Product Specifications

6
HL2 Series
LLTCL001-1M-8/13 (CDS)
!
!
DANGER
WARNING
Improper installation, adjustment, alteration,service
or maintenance can cause property damage, injury
or death.
This is NOT an explosion-proof heater. Where there is the
possibility of exposure to flammable vapors or dusts, consult
the local fire marshall, your insurance carrier or authorities for
approval of the proposed installation. Do NOT install in
residential or explosive environments.
This heater must be installed and serviced by trained gas
installation and service personnel only. The installation of this
heater must conform with local building codes or, in the
absence of such codes, the National Fuel Gas Code (NFPA
54).
GAS CONNECTION
Allowances must be made for the system to expand. A
flexible gas connection of approved type is required. The
connector shall be of Type 1 hose per Exhibit “A” Section B.4.,
and Figure 1 and 2. Consult manual for further instructions.
Read and understand the installation, operating
and maintenance instructions thoroughly before
installing or servicing this equipment.
Des installation réglage, modification, maintenance
ou entretien inappropriés peuvent causer des
dommages matériels, des blessures ou la mort.
Ceci nest PA S un radiateur antidéflagrant. En présence possible de
vapeurs ou de poussires inflammables, consulter le commissaire
des incendies local, votre compagnie dassurance ou les autorités
compétentes pour lapprobation de linstallation projetée. NE
CNIENT PAS aux applications résidentielles ou  tout
environnement sujet  explosion.
Ce radiateur  ga ne doit tre installé et entretenu que par du
personnel formé et qualifié  cette fin. installation de ce radiateur
doit tre conforme aux codes locaux du btiment ou, en labsence
de tels codes, du National Fuel Gas Code (NFPA 54)
RACCORDEMENT AU GAZ
Prévoir du jeu pour la dilatation du systme. n raccordement par
tube flexible approuvé pour le ga est nécessaire. e raccord
flexible devra tre de type 1 tel quindiqué au schéma A, section
B.4., et aux figures 1 et 2 Se référer au manuel pour plus
dinformation.
ire et comprendre les directives dinstallation, de
fonctionnement et dentretien avant dinstaller ou
dentretenir cet équipement
.
!
WARNING. To ensure system performance and
safety, this unit must be properly vented.
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or
death.
Des installation, réglage, modification,maintenance ou
entretien inappropriés peuvent causer des dommages
matériels, des blessures ou la mort.
This heater can be installed in various configurations as specified in the
manual.
AIRCRAFT HANGARS. This heater must be installed in accordance
with the latest edition of the Standard for Aircraft angars, ANSINFPA
4.
PUBLIC GARAGES. This heater must be installed in accordance with
the latest edition of the Standard for Paring Structures, ANSINFPA
A, or the Code for Repair Garages, ANSINFPA A or the Canadian
Natural Gas and Propane Installation Code, CSA B14.1. as per
Clause 1.1.4.
VENTING. This heaters venting system must comply with the following
requirements
 Do not exceed 2 feet vent length or place more than two (2) 
elbows in the venting system.
 se 4-DS ent it for single sidewall venting
 Common vented models (with -fitting) must be wired on the same
control.
 A minimum ventilation rate of 4. cfm1
Btu is required for unvented operation.
Ce radiateur peut tre installé dans différentes configurations tel que
spécifié dans le manuel.
HANGARS À AVIONS. Ce radiateur doit tre installé en conformité avec
a dernire édition de la norme Standard for Aircraft angars, ANSINFPA
4.
GARAGES PUBLICS. Ce radiateur doit tre installé en conformité avec
la dernire édition de la norme Standard for Paring Structures,
ANSINFPA , ou du Code for Repair Garages, ANSINFPA A ou, au
Canada, du Code dinstallation du ga naturel et du propane,
CSA B14.1., article 1.1.4.
ÉVACUATION. e systme dévacuation de ce radiateur doit
satisfaire aux exigences suivantes
 Ne pas dépasser 2 pi en longueur de conduit ou utiliser plus de 2
coudes   dans le systme dévacuation.
 tilise lensemble dévacuation RTP-4 pour une évacuation murale
unique.
 es modles avec évacuation commne (avec raccord en  ) doivent
tre reliés  une mme commande.
 n taux de ventilation minimal de 4 pcm1 Btu est nécessaire
pour un fonctionnement sans systme dévacuation
AVERTISSEMENT. Pour assurer le rendement et le
fonctionnement sécuritaire du systme, cet appareil
doit tre ventilé de faon appropriée.
65,000* - 75,000*
W1 side shield
W2 side shields
2 ft. from burner
50,000* - 60,000*
W1 side shield
W2 side shields
2 ft. from burner
105,000* - 125,000*
W1 side shield
W2 side shields
2 ft. from burner
80,000* - 100,000*
W1 side shield
W2 side shields
2 ft. from burner
155,000* - 175,000*
W1 side shield
W2 side shields
2 ft. from burner
130,000* - 150,000*
W1 side shield
W2 side shields
2 ft. from burner
180,000* - 200,000*
W1 side shield
W2 side shields
2 ft. from burner

45




45




45




45




45




45




45



152.4
152.4
152.4
152.4
.2
11.4
11.4
11.4
11.4
.2
1
1
1
1
.2
1.
1.
1.
.1.
.2
2.
2.
2.
2.
111.
25.
25.
25.
25.
111.
2.
2.
2.
2.
111.
CLEARANCE TO COMBUSTIBLES
FIRE HAZARD. Always maintain published clearance to combustibles. In locations
used for the storage of combustible materials, signs must be posted. Consult manual
for additional guidelines.
MODEL
BTU/h RANGE MOUNTING ANGLE FRONTSIDE BEHIND TOP BELOW
SIDE SIDE
TOP
BELOW
0° MOUNTING ANGLE
FRONT BEHIND
BELOW
45° MOUNTING ANGLE
TOP
BELOW
BEHINDFRONT
0° W/1 SIDE SHIELD
TOP
SIDE SIDE
BELOW
0° W/2 SIDE SHIELDS
TOP
IMPORTANT:. se high BT output when determining clearances. inimum end clearance for all models
is 12 inches. aximum mounting angle is 45. eep cover in place.
22.
.1
.
22.
1.
22.
.1
.
22.
1.
5.
14.
1.
5.
1.
5.
.1
.
4.
1.
.4
1
12
.2
2.
1
14.
1.
5.4
2.
14.1
1
1.2
.2
2.
cm in.


2




2


14

2
1

2
5
42
2

24
11
2
42
5

5

4

41
11
11

54
22.
2.
2.
22.
1.
22.
2.
2.
22.
1.
5.
2.
2.
5.
1.
5.
2.
2.
4.
1.
.4
2.
2.
.2
2.
1
2.
2.
5.4
2.
14.1
2.
2.
.2
2.
cm in.









14


2


24

2


2

1

11



4
11


41
11

15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
cm in.

1




1






1
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1
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1
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
1




1

cm in.
4
4

4
4















44
1
1
1
1
2
2
44
44
4
2
2
4
4
4
RISQUE D’INCENDIE. Toujours respecter les dégagements prescrits de tout matériau
combustible. Dans les endroits servant au stocage de matériaux combustibles, des
écriteaux doivent en avertir. Se référer au manuel pour des directives supplémentaires.
*IMPORTANT: Déterminer les dégagements en fonction de la capacité nette de Btu maximale. e
dégagement minimal  lextrémité est de 12 po pour tous les modles. angle dinclinaison maximal est de
45. Garder le couvercle en place.
(cm & in.)
!
CAUTION
MODEL /MODELE NO. INPUT BTU/H FOR USE WITH
NATURAL GAS
RADIATEUR A INFRAROUGE A FAIBLE INTENSITE
VOLTS A.C.
STARTING AMPS.
RUNNING AMPS.
120~60Hz
4.8
1.1
MANIFOLD PRESSURE
MIN. INLET PRESSURE
ORIFICE SIZE
3.5” WC
5.0” WC
#3 D.M.S
HEATER TYPE
VERSION
MIN. MOUNTING ANGLE:
COMBUSTION CHAMBER:
4” BC ALUMINUM
FOR INDOOR USE
BRANT RADIANT HEATERS LIMITED
34 SCOTT AVE., PARIS, ONTARIO
TEL: [phone] WWW.BRANTRADIANT.COM
ANSI Z83.20b - 2011 CSA 2.32b - 2011 Low - Intensity Infrared Htr.
ANS Z83.20b - 2011 CSA - 2011 Low - Intensity Infrared Htr.
SERIAL NO.
0870 XXXX XXXX 0001
RE-VERBER-RAY LOW INTENSITY INFRARED HEATER
FOR INDOOR INSTALLATION ONLY. NOT FOR USE IN RESIDENTIAL DWELLING.
INSTALLATION À L’EXTÉRIEUR SEULEMENT. NE PAS INSTALLER DANS UN LOGEMENT.
MAX. MOUNTING ANGLE:
0 DEGREES
45 DEGREES
FOR STAINLESS STEEL UPGRADES THE
COMBUSTION TUBE IS UPGRADED TO 409
STAINLESS STEEL.
C1
10/11
HL2-40-125N 125,000/95,000
SAMPLE
MODEL /MODELE NO. INPUT BTU/H FOR USE WITH
NATURAL GAS
RADIATEUR A INFRAROUGE A FAIBLE INTENSITE
VOLTS A.C.
STARTING AMPS.
RUNNING AMPS.
120~60Hz
4.8
1.1
MANIFOLD PRESSURE
MIN. INLET PRESSURE
ORIFICE SIZE
3.5” WC
5.0” WC
#3 D.M.S
HEATER TYPE
VERSION
MIN. MOUNTING ANGLE:
COMBUSTION CHAMBER:
4” BC ALUMINUM
FOR INDOOR USE
BRANT RADIANT HEATERS LIMITED
34 SCOTT AVE., PARIS, ONTARIO
TEL: [phone] WWW.BRANTRADIANT.COM
ANSI Z83.20b - 2011 CSA 2.32b - 2011 Low - Intensity Infrared Htr.
ANS Z83.20b - 2011 CSA - 2011 Low - Intensity Infrared Htr.
SERIAL NO.
0870 XXXX XXXX 0001
RE-VERBER-RAY LOW INTENSITY INFRARED HEATER
FOR INDOOR INSTALLATION ONLY. NOT FOR USE IN RESIDENTIAL DWELLING.
INSTALLATION À L’EXTÉRIEUR SEULEMENT. NE PAS INSTALLER DANS UN LOGEMENT.
MAX. MOUNTING ANGLE:
0 DEGREES
45 DEGREES
FOR STAINLESS STEEL UPGRADES THE
COMBUSTION TUBE IS UPGRADED TO 409
STAINLESS STEEL.
C1
10/11
HL2-40-125N 125,000/95,000
Air Metering Orifice
DO NOT REMOVETP-114
TP-3014 1 - 1/2"
Safety Labels and Their Locations
Back Panel
Top Panel
Bottom Panel
Rating
Plate
Tube Safety Label
F/N: LLTCL001
F/N: LLLOGO1
Product safety signs or labels should be replaced by the product user when they no longer are legible.
Contact either your local distributor or the product manufacturer for obtaining replacement signs or labels.
F/N: LLAC
Air Metering Orifice
SAMPLE
Air Metering Orifice
SAMPLE
Air Metering Orifice
T REM
SAMPLE
T REM
OV
SAMPLE
OV
E
SAMPLE
E
TP-114
SAMPLE
TP-114
TP-3014
SAMPLE
TP-3014
SAMPLE
LLTCL001-1M-8/13 (CDS)
!
!
!
CAUTION
DANGER
WARNING
Improper installation, adjustment, alteration,service
or maintenance can cause property damage, injury
or death.
This is NOT an explosion-proof heater. Where there is the
possibility of exposure to flammable vapors or dusts, consult
the local fire marshall, your insurance carrier or authorities for
approval of the proposed installation. Do NOT install in
residential or explosive environments.
This heater must be installed and serviced by trained gas
installation and service personnel only. The installation of this
heater must conform with local building codes or, in the
absence of such codes, the National Fuel Gas Code (NFPA
54).
GAS CONNECTION
Allowances must be made for the system to expand. A
flexible gas connection of approved type is required. The
connector shall be of Type 1 hose per Exhibit “A” Section B.4.,
and Figure 1 and 2. Consult manual for further instructions.
Read and understand the installation, operating
and maintenance instructions thoroughly before
installing or servicing this equipment.
Des installation réglage, modification, maintenance
ou entretien inappropriés peuvent causer des
dommages matériels, des blessures ou la mort.
Ceci n’est PAS un radiateur antidéflagrant. En présence possible de
vapeurs ou de poussières inflammables, consulter le commissaire
des incendies local, votre compagnie d’assurance ou les autorités
compétentes pour l’approbation de l’installation projetée. NE
CONVIENT PAS aux applications résidentielles ou à tout
environnement sujet à explosion.
Ce radiateur à gaz ne doit être installé et entretenu que par du
personnel formé et qualifié à cette fin. L’installation de ce radiateur
doit être conforme aux codes locaux du bâtiment ou, en l’absence
de tels codes, du National Fuel Gas Code (NFPA 54)
RACCORDEMENT AU GAZ
Prévoir du jeu pour la dilatation du système. Un raccordement par
tube flexible approuvé pour le gaz est nécessaire. Le raccord
flexible devra être de type 1 tel qu’indiqué au schéma ‘A’, section
B.4., et aux figures 1 et 2 Se référer au manuel pour plus
d’information.
Lire et comprendre les directives d’installation, de
fonctionnement et d’entretien avant d’installer ou
d’entretenir cet équipement.
!
WARNING. To ensure system performance and
safety, this unit must be properly vented.
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or
death.
Des installation, réglage, modification,maintenance ou
entretien inappropriés peuvent causer des dommages
matériels, des blessures ou la mort.
This heater can be installed in various configurations as specified in the
manual.
AIRCRAFT HANGARS. This heater must be installed in accordance
with the latest edition of the Standard for Aircraft Hangars, ANSI/NFPA
409.
PUBLIC GARAGES. This heater must be installed in accordance with
the latest edition of the Standard for Parking Structures, ANSI/NFPA
88A, or the Code for Repair Garages, ANSI/NFPA 30A or the Canadian
Natural Gas and Propane Installation Code, CSA B149.1. as per
Clause 1.1.4.
VENTING. This heater’s venting system must comply with the following
requirements:
• Do not exceed 20 feet vent length or place more than two (2) 90°
elbows in the venting system.
• Use 4-DSK Vent Kit for single sidewall venting;
• Common vented models (with Y-fitting) must be wired on the same
control.
• A minimum ventilation rate of 4.0 cfm/1000
Btu/H is required for unvented operation.
Ce radiateur peut être installé dans différentes configurations tel que
spécifié dans le manuel.
HANGARS À AVIONS. Ce radiateur doit être installé en conformité avec
a dernière édition de la norme Standard for Aircraft Hangars, ANSI/NFPA
409.
GARAGES PUBLICS. Ce radiateur doit être installé en conformité avec
la dernière édition de la norme Standard for Parking Structures,
ANSI/NFPA 88, ou du Code for Repair Garages, ANSI/NFPA 30A ou, au
Canada, du Code d’installation du gaz naturel et du propane,
CSA B149.1., article 1.1.4.
ÉVACUATION. Le système d’évacuation de ce radiateur doit
satisfaire aux exigences suivantes:
• Ne pas dépasser 20 pi en longueur de conduit ou utiliser plus de 2
coudes à 90° dans le système d’évacuation.
• Utilisez l’ensemble d’évacuation RTVP-4 pour une évacuation murale
unique.
• Les modèles avec évacuation commne (avec raccord en Y ) doivent
être reliés à une même commande.
• Un taux de ventilation minimal de 4 pcm/1000 Btu/H est nécessaire
pour un fonctionnement sans système d’évacuation
AVERTISSEMENT. Pour assurer le rendement et le
fonctionnement sécuritaire du système, cet appareil
doit être ventilé de façon appropriée.
65,000* - 75,000*
W/1 side shield
W/2 side shields
20 ft. from burner
50,000* - 60,000*
W/1 side shield
W/2 side shields
20 ft. from burner
105,000* - 125,000*
W/1 side shield
W/2 side shields
20 ft. from burner
80,000* - 100,000*
W/1 side shield
W/2 side shields
20 ft. from burner
155,000* - 175,000*
W/1 side shield
W/2 side shields
20 ft. from burner
130,000* - 150,000*
W/1 side shield
W/2 side shields
20 ft. from burner
180,000* - 200,000*
W/1 side shield
W/2 side shields
20 ft. from burner
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
0º
45º
0º
0º
0º
152.4
152.4
152.4
152.4
76.2
119.4
119.4
119.4
119.4
76.2
193
193
193
193
76.2
167.6
167.6
167.6
.167.6
76.2
233.7
233.7
233.7
233.7
111.8
205.7
205.7
205.7
205.7
111.8
238.8
238.8
238.8
238.8
111.8
CLEARANCE TO COMBUSTIBLES
FIRE HAZARD. Always maintain published clearance to combustibles. In locations
used for the storage of combustible materials, signs must be posted. Consult manual
for additional guidelines.
MODEL
BTU/h RANGE MOUNTING ANGLE
FRONT
SIDE
BEHIND
TOP BELOW
SIDE SIDE
TOP
BELOW
0° MOUNTING ANGLE
FRONT BEHIND
BELOW
45° MOUNTING ANGLE
TOP
BELOW
BEHINDFRONT
0° W/1 SIDE SHIELD
TOP
SIDE SIDE
BELOW
0° W/2 SIDE SHIELDS
TOP
IMPORTANT:. *Use high BTU output when determining clearances. Minimum end clearance for all models
is 12 inches. Maximum mounting angle is 45°. Keep cover in place.
22.9
99.1
73.7
22.9
17.8
22.9
99.1
73.7
22.9
17.8
50.8
147.3
106.7
50.8
17.8
35.6
99.1
73.7
40.6
17.8
86.4
160
127
76.2
27.9
61
147.3
106.7
58.4
27.9
104.1
160
137.2
76.2
27.9
cm in.
9
39
29
9
7
9
39
29
9
7
14
39
29
16
7
20
58
42
20
7
24
11
23
42
58
30
50
63
34
63
41
11
11
30
54
22.9
20.3
20.3
22.9
17.8
22.9
20.3
20.3
22.9
17.8
50.8
20.3
20.3
50.8
17.8
35.6
20.3
20.3
40.6
17.8
86.4
20.3
20.3
76.2
27.9
61
20.3
20.3
58.4
27.9
104.1
20.3
20.3
76.2
27.9
cm in.
9
9
8
8
9
7
8
8
8
14
7
9
23
8
8
24
7
20
8
8
20
7
16
8
11
30
8
8
34
11
8
8
41
11
30
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
15.2
25.4
15.2
15.2
15.2
cm in.
6
10
6
6
6
6
10
6
6
6
6
6
6
10
6
6
6
6
6
10
6
6
6
6
10
6
6
6
10
6
6
6
6
10
6
cm in.
47
47
30
47
47
60
30
60
60
60
76
76
30
30
66
66
76
66
66
76
44
81
81
81
81
92
92
44
44
94
92
92
94
94
94
RISQUE D’INCENDIE. Toujours respecter les dégagements prescrits de tout matériau
combustible. Dans les endroits servant au stockage de matériaux combustibles, des
écriteaux doivent en avertir. Se référer au manuel pour des directives supplémentaires.
*IMPORTANT: Déterminer les dégagements en fonction de la capacité nette de Btu maximale. Le dégage-
ment minimal à l’extrémité est de 12 po pour tous les modèles. L’angle d’inclinaison maximal est de 45°.
Garder le couvercle en place.
(cm & in.)
1.0 Introduction • Safety Signs and Labels

7
HL2 Series
Radiant
Tube(s)
Primary Combustion
Chamber
16” Burner Tube
Yellow Titanium Alloy Tag
(150,000 BTU/H models and greater)
HEATER IS EQUIPPED WITH AN HL-RB (RELAY BOARD)
REQUIRED FOR GROUPING MULTIPLE HEATES ON ONE
THERMOSTAT. HEATERS MUST BE WIRED ACCORDING TO
INSTALLATION INSTRUCTIONS
LED STATUS FAULT
One flash on .........Normal opertion
120V pwr up.
No flash on ..........24 volt transformer
120V pwr up.
Steady on ................Module
1 Flash ....................Ignition
2 Flash ...................Burner Ignition
3 Flash ...................Exhaust Switch
4 Flash ................Gas valve/flame rect.
LED STATUS FAULT
One flash on .........Normal opertion
120V pwr up.
No flash on ..........24 volt transformer
120V pwr up.
Steady on ................Module
1 Flash ....................Ignition
2 Flash ...................Burner Ignition
3 Flash ...................Exhaust Switch
4 Flash ................Gas valve/flame rect.
HEATER IS EQUIPPED WITH AN HL-RB (RELAY BOARD)
REQUIRED FOR GROUPING MULTIPLE HEATES ON ONE
THERMOSTAT. HEATERS MUST BE WIRED ACCORDING TO
INSTALLATION INSTRUCTIONS
HIGH
FIRE
HL
LOW
FIRE
F/N: LLV3EP2
Orange Crescent
(This label is on
models with a
relay board
installed only).
F/N: LLV3EP4
White Crescent
Left Panel
(Fan Compartment)
F/N: LLV2EP9
24V LOW
24V OUT
HIGH
- 24V HEATER OUTPUT -
(This label is located on models with a relay board installed only).
1.0 Introduction • Safety Signs and Labels

8
HL2 Series
2.0 Safety
Warning indicates a potentially hazardous situation
which, if not avoided, could result in death or injury.
Caution indicates a potentially hazardous situation
which, if not avoided, could result in minor or
moderate injury.
Notice indicates a potentially hazardous situation
which, if not avoided, could result in property
damage.
NOTICE
WARNING
!
!
CAUTION
!
WARNING
!
!
WARNING
!
!
Warning Symbols
Safety is the most important consideration during installation, operation and maintenance of the tube
heater. You will see the following symbols and signal words when there is a hazard related to safety or
property damage.
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, serious injury or death. Read and understand, the installation,
operating and maintenance instructions thoroughly before installing or servicing this
equipment. Only trained, qualified gas installation and service personnel may install or
service this equipment.
Applications
This is not an explosion proof heater. No tube heater may be used in a Class 1 or Class 2 Explosive
Environment. Consult your local fire Marshall, insurance carrier and other authorities for approval if the
proposed installation is in question.
Commercial / Industrial
Unless otherwise indicated, tube heaters are designed and certified for use in industrial and commercial
buildings, such as warehouses, manufacturing plants, aircraft hangars and vehicle maintenance shops.
For maximum safety the building must be evaluated for potential problems before installing the heating
system. A critical safety factor to consider before installation is the clearance to combustibles.
Not For Residential Use. Installation of a commercial tube heater system in residential indoor spaces
may result in property damage, serious injury or death.
2.0 Safety • Warning Symbols • Applications

9
HL2 Series 2.0 Safety • Standards, Certifications and Government Regulations
Building
Type Installation of this tube heater in public garages must conform to the following codes:
United States: Standard for Parking Structures NFPA 88A (latest edition) or the
Code for Motor Fuel Dispensing Facilities and Repair Garages NFPA 30A (latest
edition).
Canada: Refer to CAN/CGA B149.1-10: Installation Codes for Gas Burning Appliances
and applicable Standards for Public Garages.
Guidelines:
• Heaters must not be installed less than 8 ft. (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.
Installation of this tube heater in aircraft hangars must be in accordance with the
following codes:
United States: Refer to Standard for Aircraft Hangars, ANSI/NFPA 409
(latest edition).
In Canada: Refer to Standard CAN/CGA B149.1-10 and applicable Standards for
Aircraft Hangars.
Guidelines:
• In aircraft storage and servicing areas, heaters shall be installed at least 10 ft. (3 m)
from above the upper surface of wings or of the engine enclosures of the highest
aircraft that 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 areas adjoining the aircraft storage area (e.g., shops, offices) the bottom of heaters
shall be installed no less than 8 ft. (2.4 m) above the floor.
• Suspended or elevated heaters shall be located in spaces where they shall not be
subject to damage by aircraft, cranes, movable scaffolding or other objects.
Provisions shall be made to assure accessibility to suspended tube heaters for recurrent
maintenance purposes.
Standards, Certifications and Government Regulations
Installation of this tube heater must comply with all applicable local, state and national specifications,
regulations and building codes. Contact the local building inspector and/or fire marshall for guidance.
In the absence of local codes, the installation must conform to the latest edition of:
United States: National Fuel Gas Code, ANSI Z223.1 (NFPA 54).
Canada: CAN/CGA B149.1-10, Canadian Electrical Code C22.1
Public
Garages
Aircraft
Hangars
Chart 2.1 • Standards and Code Installation Guidelines • Building Type
Codes and Guidelines

10
HL2 Series
2.0 Safety • Standards, Certifications and Government Regulations
Applicable authorities governing the manufacturing or installation of this infrared heater include
(but are not limited to) the following organizations:
The tube heater must be electrically grounded in accordance with the following codes:
United States: Refer to National Electrical Code®, ANSI/NFPA 70 (latest edition).
Wiring must conform to the latest edition of National Electrical
Code®, local ordinances, and any special diagrams furnished.
Canada: Refer to Canadian Electrical Code CSA C22.1 Part 1 (latest edition).
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 edition), National Fuel
Gas Code.
Canada: Refer to CAN/CGA B149.1 Installation Codes for Gas Burning
Appliances.
High
Altitude
Electrical
Venting
Building
Location Guidelines
Chart 2.2 • Standards and Code Installation Guidelines • Building Location
Installation of this tube heater is approved, without modifications, for elevations up to
6,000 feet (1,829 m) MSL (sea level) in the United States. Contact the factory for
installations above these elevations.
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.
Guidelines:
Building
Aspect Codes and Guidelines
Chart 2.3 • Standards and Code Installation Guidelines • Building Aspect
Non-
Standard
BTU Gas Unless otherwise noted on the rating plate, this infrared heater is designed and orificed to
operate on standard BTU gas. Contact the factory if utilizing non-standard BTU gas.
Guidelines:
• IAS - International Approval Services.
• AGA - American Gas Association.
• IRSC- Infrared Heater Safety Council.
• NFPA - National Fire Protection Association.
• ANSI Z83.20b - American National Standards Institute.
• NFPA 54/ANSI Z223.1 - National Fuel Gas Code.
• CSA - Canadian Standards Association.
• OSHA - Occupational Safety & Health Administration.

11
HL2 Series
Clearance to Combustibles
• Paint
• Parked vehicles
• Gasoline
• Storage racks
Combustible items: Moving Objects:
• Wood • Overhead doors
• Paper • Vehicle lifts
• Fabric • Cranes
• Chemicals • Hoists
A critical safety factor to consider before installation is the clearances to combustibles. Clearance to
combustibles is defined as
the minimum distance you must have between the tube surface, or reflector,
and the combustible item
. Considerations must also be made for moving objects around the tube heater.
The following is a partial list of items to maintain clearances from:
• Vehicle parking areas
• Vehicles with lifts or cranes
• Storage areas with stacked materials
• Lights
• Sprinkler heads
• Overhead doors and tracks
• Dirty, contaminated environment
• Gas and electrical lines
• Combustible and explosive materials
• Chemical storage areas
• Areas of high chemical fume concentrations
• Provisions for accessibility to the heater
• Adequate clearances around air openings
• Combustion and ventilating air supply
Hazards:
For maximum safety the building must be evaluated for hazards before installing the heating system.
Examples of hazards include, but are not limited to:
If you are unsure of the potential hazards, consult your local fire Marshall, fire insurance carrier or other
qualified authorities on the installation of gas fired tube heaters for approval of the proposed installation.
Safety Signs and Labels
It is important to provide warnings to alert individuals to potential hazards and safety actions. ANSI
Z83.20b and CSA 2.34 require you to post a sign “specifying the maximum permissible stacking height to
maintain the required clearances from the heater to the combustibles” near the heaters thermostat or in
absence of such thermostats in a conspicuous location. Contact Brant Radiant Heaters Ltd. or an
authorized dealer for Clearance Safety Limit Signs(P/N: BR-SIGN).
Safety warning labels must be maintained on the tube heater. Illustrations of the safety labels, and their
locations, are pictured in the Series Manual. In locations used for the storage of combustible materials,
signs must be posted to specify the maximum permissible stacking height to maintain the required
clearances from the heater to combustibles. Signs must either be posted adjacent to the heater
thermostats or in the absence of such thermostats in a conspicuous location.
WARNING
!
Placement of explosive objects, flammable objects, liquids and vapors close to the
heater may result in explosion, fire, property damage, serious injury or death. Do not
store or use explosive objects, liquids and vapor in the vicinity of the heater.
2.0 Safety • Clearance to Combustibles

12
HL2 Series
When installing the tube heater system, clearances to combustibles for the model tube heater and
configuration must be maintained. Refer to Chart 2.4 below to determine the required distances for your model.
Chart 2.4 • Clearance to Combustibles in Inches (cm) (see Figure 2.1 for Mounting Angles)
Figure 2.1 • Mounting Angles
*
Heaters mounted on an angle between 0° to 45° must maintain clearances posted for 0° or 45°; whichever is greater.
45° Mounting Angle
0° Mounting Angle
with 1 Side Shield
(P/N: SSE)
0° Mounting Angle
with 2 Side Shields
(P/N: SSE)
Front Behind
Below
Top
Front Behind
Below
Top
Side Side
Below
Top
0° Mounting Angle
Side Side
Below
Top
2.0 Safety • Clearance to Combustibles
Model Number Mounting Angle* Sides Front Behind Top Below
HL2 (20, 30, 40) - 65, 75 [N, P] 0° 9(23) 9(23) 6(15) 60 (152)
45° 39 (99) 8(20) 10 (25) 60 (152)
with 1 side shield 0° 29 (74) 8(20) 6(15) 60 (152)
with 2 side shields 0° 9(23) 9(23) 6(15) 60 (152)
20 ft. from burner 0° 7(18) 7(18) 6(15) 30 (76)
HL2 (20, 30, 40) - 80, 100 [N, P] 0° 14 (35) 14 (35) 6(15) 66 (168)
45° 39 (99) 8(20) 10 (25) 66 (168)
with 1 side shield 0° 29 (74) 8(20) 6(15) 66 (168)
with 2 side shields 0° 16 (41) 16 (41) 6(15) 66 (168)
20 ft. from burner 0° 7(18) 7(18) 6(15) 30 (76)
HL2 (30, 40, 50) - 125 [N, P] 0° 20 (51) 20 (51) 6(15) 76 (193)
45° 58 (147) 8(20) 10 (25) 76 (193)
with 1 side shield 0° 42 (107) 8(20) 6(15) 76 (193)
with 2 side shields 0° 20 (51) 20 (51) 6(15) 76 (193)
20 ft. from burner 0° 7(18) 7(18) 6(15) 30 (76)
HL2 (40, 50, 60) - 150 [N, P] 0° 24 (61) 24 (61) 6(15) 81 (206)
45° 58 (147) 8(20) 10 (25) 81 (206)
with 1 side shield 0° 42 (107) 8(20) 6(15) 81 (206)
with 2 side shields 0° 23 (58) 23 (58) 6(15) 81 (206)
20 ft. from burner 0° 11 (28) 11 (28) 6(15) 44 (112)
HL2 (40, 50, 60, 70) - 175 [N, P] 0° 34 (86) 34 (86) 6(15) 92 (234)
45° 63 (160) 8(20) 10 (25) 92 (234)
with 1 side shield 0° 50 (127) 8(20) 6(15) 92 (234)
with 2 side shields 0° 30 (76) 30 (76) 6(15) 92 (234)
20 ft. from burner 0° 11 (28) 11 (28) 6(15) 44 (112)
HL2 (50, 60, 70) - 200 [N, P] 0° 41 (104) 41 (104) 6(15) 94 (239)
45° 63 (160) 8(20) 10 (25) 94 (239)
with 1 side shield 0° 54 (137) 8(20) 6(15) 94 (239)
with 2 side shields 0° 30 (76) 30 (76) 6(15) 94 (239)
20 ft. from burner 0° 11 (28) 11 (28) 6(15) 44 (112)

13
HL2 Series 3.0 Installation • Design Considerations and Prechecks
3.0 Installation
WARNING
!
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, serious injury or death.
Read and understand, the installation, operating and maintenance instructions
thoroughly before installing or servicing this equipment.
Only trained, qualified gas installation and service personnel may install or service
this equipment.
Design Considerations and Prechecks
Placement of infrared heaters is influenced by many factors. Aside from safety factors, considerations
such as the number of heater or vent elbows that are allowed, maximum vent lengths, ducting of
combustion air and combining exhaust vents are a few examples. This installation manual, along with
national, provincial and local codes address these issues. It is critical that you read, understand and
follow all guidelines and instructions.
To ensure a properly designed heating system, a layout should be developed for the correct placement of
the burner control box, tubes, vents and combustion air intake ducts. Inspect and evaluate the mounting
conditions, vent locations, gas supply and wiring.
When designing an infrared radiant heating system, consider the following:
• Has the building’s heat loss been evaluated?
• Does the design meet the needs of the space?
• Have recommended mounting heights been observed?
• Have all clearance to combustibles situations been observed?
• Is the supply (burner) end of the heater located where more heat is required?
• Is it best to offset the heaters and/or rotate the reflectors towards the heat zone?
• Are extra guards, side shields, ‘U’ or ‘L’ reflector covers required?
• Does the heater require outside fresh air for combustion?
• Is the environment harsh or contaminated (requiring outside air for combustion)?
• Are chemicals or vapors a concern (requiring outside air for combustion or additional ventilation)?
IMPORTANT: Fire sprinkler heads must be located at an appropriate distance from the heater to avoid an
inadvertent discharge. This distance may exceed the published clearance to combustibles. Certain
applications may require the use of high temperature sprinkler heads or the relocation of the heaters.
Fire sprinkler systems containing propylene glycol, antifreeze or other potentially flammable substances
shall not to be used in conjunction with this heater without careful consideration for and avoidance of
inadvertent discharge hazards. For further information consult NFPA 13. Always observe applicable
provinces and local codes.
CAUTION
!

14
HL2 Series
Design Scenario:
A tube heater system is being installed in a 90’ (L) x 50’ (W) x 14’ (H) space. Two overhead doors are located
at one end and an equipment storage area on one side. The calculated heat load is 400,000 BTU/h.
Figure 3.1 • Poor Design
Figure 3.2 • Good Design
Doors and
tracks
Too Cold Too Hot
Equipment storage
50’
80’ - 200,000 BTU
(2 total)
Doors and
tracks
90’
Doors and
tracks
Doors and
tracks
Equipment storage
Sidewall Vent (2 total)
• Two burners (200,000 BTU each) are placed at one end, opposite the area of highest demand
(e.g., overhead doors).
• Recommended mounting heights are not observed (see Chart 3.1).
• Produces an uneven heat distribution.
• Four burners (100,000 BTU each) are placed in each corner. Burner (hotter) ends direct heat to areas of
highest heat demand.
• Recommended mounting heights have been observed.
• Distributes heat more evenly.
Gas Supply
50’
90’ Gas Supply
40’ - 100,000 BTU
(4 total)
Poor Design
Good Design
When heated, materials high in hydrocarbons (solvents, paint thinner, mineral spirits, formaldehydes, etc.)
can evaporate. This may result in odors or fumes being emitted into the environment. To correct this
problem, clean the area and/or introduce additional ventilation. The heaters themselves, when installed
and serviced in accordance with the installation manual, do not emit foul odors into the environment.
Better Heat Distribution
3.0 Installation • Design Considerations

15
HL2 Series
Factory recommended mounting heights are listed as a guideline. If infrared heaters are mounted too low
or too high, they may result in discomfort or lack of heat. Brant Radiant Heaters Ltd. generally
recommends observing the recommended mounting heights to optimize comfort conditions. However,
certain applications such as spot heating, freeze protection, outdoor patio heating or very high ceilings
may result in the heaters being mounted outside of the factory recommended mounting heights.
Dimension C
Maximum
distance
between
heater
and wall
Chart 3.1 • Recommended Mounting Heights and Coverages in Inches
Note: This chart is provided as a guideline. Actual conditions may dictate variation from this data.
Model
BTU Range
Coverage Area Straight Config. (LxW)
Coverage Area U-Tube Config. (LxW)
Recommended Mounting Height (ft.)
Distance Between Heaters (ft.) Dimension A Distance Between Heater Rows (ft.) Dimension B
Maximum Distance Between Heaters and wall (ft.) Dimension C
Figure 3.3 • Mounting Height Dimensions (see Chart 3.1 for dimensions)
Dimension A
Dimension B
Distance between
heater rows
Dimension C
Maximum distance between heater and wall
Dimension A
Note: Dimensions A, B & C are based upon heaters hung at the factory recommended mounting height.
20 ft. 50-65 MBH 10’ - 16’ 20’ x 12’ 12’ x 12’ 10’ - 20’ 20’ - 40’ 16’
75-100 MBH 12’ - 20’ 22’ x 15’ N/A 20’ - 30’ 30’ - 50’ 18’
30 ft. 50-65 MBH 10’ - 16’ 30’ x 14’ 17’ x 13’ 10’ - 20’ 20’ - 40’ 17’
75-125 MBH 12’ - 20’ 33’ x 18’ 18’ x 15’ 20’ - 30’ 30’ - 50’ 20’
40 ft. 50-65 MBH 10’ - 16’ 40’ x 16’ 22’ x 14’ 10’ - 20’ 20’ - 40’ 20’
75-125 MBH 12’ - 20’ 44’ x 21’ 23’ x 17’ 20’ - 30’ 30’ - 50’ 20’
150-175 MBH 16’ - 30’ 45’ x 26’ 24’ x 20’ 30’ - 40’ 40’ - 60’ 25’
50 ft. 100-125 MBH 15’ - 25’ 55’ x 24’ 28’ x 19’ 20’ - 30’ 30’ - 50’ 25’
150-200 MBH 16’ - 30’ 56’ x 30’ 29’ x 23’ 30’ - 40’ 40’ - 60’ 25’
60 ft. 125 MBH 16’ - 25’ 66’ x 27’ 33’ x 21’ 20’ - 30’ 30’ - 50’ 25’
150-200 MBH 17’ - 40’ 67’ x 34’ 34’ x 26’ 30’ - 40’ 40’ - 60’ 25’
70 ft. 175-200 MBH 17’ - 40’ 78’ x 38’ 39’ x 29’ 30’ - 40’ 40’ - 60’ 30’
3.0 Installation • Recommended Mounting Heights and Coverages

16
HL2 Series
WARNING
!
Suspension of the heater must conform to applicable codes referenced in the Safety section and
these instructions.
Lay all radiant tubing out in the following order. Position tubes in approximate location (see figure 3.4).
• 10 ft. primary combustion chamber.
• If applicable, the secondary 10 ft. aluminized treated steel combustion chamber (150-200 MBH
models only). Refer to the Specifications Chart in the Series Manual to determine if a second
combustion chamber is required for your model heater.
• Radiant emitter tubes.
Important! 150,000-200,000 BTU/h models must use the 10 ft. titanium alloy treated combustion
chamber as the first tube downstream of the burner control box. The combustion chamber has a
yellow identification sticker located on the swaged end of the tube.
Stainless Steel Heaters must use the 304 Series stainless steel combustion chamber as the
first tube downstream of the burner control box.
2 Mark locations for hanging points.
NOTE: If the available hanging points do not allow for the recommended spacing then additional
hangers (P/N: TP-19B) may be necessary.
• The spacing between the burner control box mounting brackets and the first hanger should be
approximately 2’-4”(0.7 m).
• The space between the first two hangers placed on the first tube, should be approximately
8’-10” (2.7 m).
• The space between hangers thereafter, one per tube, should be approximately 9’-8” (3 m).
Hanger Placement and Suspension
Improper suspension of the tube heater may result in collapse and being crushed. Always
suspend from a permanent part of the building structure that can evenly support the total
force and weight of the heater.
Failure to maintain minimum clearance to combustibles may result in fire and/or explosion,
property damage, serious injury or death. Always maintain minimum clearances and post
clearance safety limit signs or the clearance safety tag where needed.
1
3.0 Installation • Hanger Placement and Suspension

17
HL2 Series
16” Burner
Tube
Chart 3.2 • Heater Mounting Requirements and Weights
Figure 3.4 • Heater Mounting Layout
10 ft. Primary Combustion Chamber
NOTE: Type varies depending on
model, refer to the Specification
Chart.
Radiant Emitter Tube
NOTE: If applicable use a Secondary
Combustion Chamber. Refer to the
Specifications Chart.
28 in.
(71 cm)
8.8 ft.
(2.7 m) 9.7 ft.
(2.9 m) 9.7 ft.
(2.9 m)
Burner Control Box
Radiant Emitter
Tube(s)
Suspension
Point
Burner Control Box
Suspension Points
Suspension
Point
Suspension Point
Igniter/Sensor Box
NOTE: A yellow band identifying the
combustion chamber(s) is located in the
middle of the tube(models 150-200 MBH).
Remove paper band before starting up heater.
Stainless Steel Tube Clamp
(150-200 MBH models only)
* Refer to page 22 for U-bend configuration dimensions.
** Model requires 5EA-SUB accessory package when installing in a U-shaped configuration.
Model Dimension* Straight Configuration Suspension Points Control Box Stabilizer Shipping Weight Chain Set Qty. Straight Chain Set Qty. w/TF1B Optional Brass Knuckle (P/N:BK) Optional Single Mount Bracket
HL2-20 21’-8” / 260” 3 2 120 lbs. 5 6 3 2
HL2-30 31’-4” / 376” 4 2 160 lbs. 6 8 4 3**
HL2-40 41’-0” / 492” 5 2 190 lbs. 7 8 5 3
HL2-50 50’-8” / 608” 6 2 235 lbs. 810 6 4**
HL2-60 60’-4” / 724” 7 2 265 lbs. 910 7 4
HL2-70 70’-0” / 840” 8 2 300 lbs. 10 12 8 5**
3.0 Installation • Hanger Placement and Suspension

18
HL2 Series
S-Hook and #1
Double-Loop Chain
3 Prepare mounting surface, if necessary weld blocks, drill holes (see figure 3.5).
NOTE: The burner control box and radiant tubes should be in straight alignment and level.
4 Fasten beam clamp, screw hook or other type of suspension anchor to hanging point.
Attach and close S-hook (P/N: S-HOOK) and #1 double-loop chain (P/N: THCS) to anchor. Check
that it is securely attached. NOTE: Threaded rod and turnbuckles may be used.
6 Attach hangers to chains. Adjust chain lengths until radiant tubing is level and equal weight distribution
is achieved. Chains must be straight up and down. Do not install chains at an angle as this can result
in tube warping or separation.
Figure 3.5 • Mounting the Hangers
3 Wood Beam
3 Concrete Beam
4 Beam Clamp
4 Screw Hook
4
Screw Hook
with Locknut
and Washer
Threaded Rod
and Turnbuckle
6 Threaded Rod
6 Chain
3 I-Beam
4 Beam Clamp
6 Chain 6 Chain
3 I-Beam
5
5
5
3.0 Installation • Hanger Placement and Suspension

19
HL2 Series
For 45 degree hanging angle use two
S-hooks and two #1 double-loop chains. For variety of hanging angles, use the Brass Knuckle (P/N: BK) fitting with a #1 double-
loop chain and S-hook.
45°30°15°
U-Tubes can be mounted at a
15, 30 or 45 degree angle with two
suspension points, using two Brass Knuckle
(P/N: BK) fittings, #1 double-loop chains and S-hooks.
U-Tubes can be mounted from a single suspension
point using a Single Mounting Bracket (P/N: SMB)
with five S-hooks and #1 double-loop chains.
Figure 3.6 • U-Tube Hanger Mounting Options
Figure 3.7 • Angled Hanger Mounting Options
Exhaust
End
Single Mounting
Bracket Brass Knuckle
3.0 Installation • Hanger Placement and Suspension

20
HL2 Series
Radiant Tube Assembly
To install the radiant tubes:
Place tubes in hangers with the welded seam facing downward and the swaged end of the tube
towards the exhaust end of the heater system (see figure 3.8).
Refer to page 27 for tube installation sequence. Place the combustion chamber as the first tube
connected to the burner control box. Models 150-200 MBH utilize a titanium combustion chamber with
yellow identification tag.
2 Slide tube clamps onto radiant tubes (see figure 3.9).
Figure 3.8 • Attach Hangers
Figure 3.9 • Attach Tube Clamps
Hanger
Welded seam
faces down
Swaged End
Tube Clamp
Radiant Tube
IMPORTANT! 150,000 to 200,000 BTU/h models must be
installed with a stainless steel tube clamp (P/N: TP-220) located at
the seam between the primary combustion chamber and the
second tube section downstream of the burner control box.
NOTE: If the tube clamp comes
apart, the spacer must be
re-assembled with the spacer’s
concave surface facing against
the radiant tube surface.
Concave surface
1
3.0 Installation • Radiant Tube Assembly