Page 1
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HL2-DS Series
Installation Manual
The HL2-DS Series Infrared Tube Heater is a positive pressure, two-stage radiant heater system designed
for unvented use outdoors. This manual provides specic information related to the HL2-DS series
models. All persons involved with the installation, operation, and maintenance of the heater system must
read and understand the information in this manual.
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, injury, or death. Read the installation, operation, and maintenance
instructions thoroughly before installing or servicing this equipment.
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,
re, 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.
For Your Safety
If you smell gas:
• Do not try to light any appliance. • Immediately call your gas supplier from a neighbor’s phone.
• Do not touch any electrical switch. • Follow the gas supplier’s instructions.
• Do not use any phone in your building. • If you cannot reach your gas supplier, call the re department.
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)
LIOHL2DS-Rev. 12917
Print: 1M-10/18 (CDS)
Replaces: 5c-04/18 (WHI)
Page 2
HL2-DS Series
Contents
1.0 Introduction.............................................................................3
Overview..........................................................................3
Heater Components ..............................................................3
Specications.....................................................................3
Safety Labels and Their Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.0 Safety ...................................................................................6
Applications ......................................................................6
Standards, Certications, and Government Regulations ..........................7
Clearances to Combustibles ......................................................8
3.0 Installation .............................................................................10
Design Considerations and Prechecks...........................................10
Recommended Mounting Heights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Heater Assembly Instructions....................................................12
Heater Placement and Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Sway Bracing for High Air Movement and Outdoor Applications .................17
Outdoor Unvented Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Gas Supply Installation Instructions..............................................19
Installation of the Gas Line to the Heater .........................................21
Leak Testing .....................................................................24
Electrical Requirements and Wiring Diagrams....................................25
Field Wiring Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Thermostat Connection..........................................................27
4.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Sequence of Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.0 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Routine Maintenance and Inspection.............................................34
Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.0 Parts .................................................................................36
Burner Assembly Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Tube and Reector Components.................................................37
Limited Warranty Terms and Conditions..........................................38
Kit Contents Check List ..........................................................40
2
Page 3
HL2-DS Series
1.0 Introduction • Overview • Heater Components • Specications
1.0 Introduction
Overview
The intent of this manual is to provide information regarding general safety, installation, operation,
and maintenance of this radiant tube heater. You must read and understand all instructions and
safety warnings before installing or servicing the radiant tube heater.
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 components included with your
radiant tube heater. Refer to page 40 for a list of the kit contents for your series heater. Materials not
included in the heater kit contents (e.g., screws, terminals, etc.) are the responsibility of the installer.
Notify your product representative or Detroit Radiant Products of any discrepancy or missing kit
contents prior to installing unit.
Specications
Chart 1.1 • HL2-DS Specications
Radiant
Gas Type
Model
Number
HL2-DS-30-65 Nat. or Prop. 65,000 50,000 16’-4” 170 9’ to 16’ 20.2 4
HL2-DS-30-80 Nat. or Prop. 80,000 52,000 16’-4” 170 9’ to 16’ 20.2 4
HL2-DS-30-100 Nat. or Prop. 100,000 65,000 16’-4” 170 9’ to 16’ 20.2 4
* Typical or recommended mounting heights are provided as a guideline. Actual conditions may dictate
variations from this data.
(select
one)
BTU/H
(High
Fire)
BTU/H
(Low
Fire) Length
Unit
Weight
(lbs.)
Recommended
Mounting
Height*
Surface
Area (sq.
ft.)
Sections
36”
Bae
3
Page 4
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LLTCL016b-1M-08/17 (CDS)
1.0 Introduction • Safety Labels and Their Locations
HL2-DS Series
WARNING
Read and understand all safety information and warnings in this manual before
installation, operation, and maintenance of the radiant tube heater system.
Safety Labels and Their Locations
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.
Back Panel
Top Panel
LOW-INTENSITY INFRARED HEATER
RADIATEUR À INFRAROUGE À FAIBLE INTENSITÉ
MODEL NUMBER
SERIAL NUMBER
NUMÉRO DE MODÈLE
NUMÉRO DE SÉRIE
HL2-DS-30-80N YYMMREPCSHIPPE#### 09/17
MAX. HEAT INPUT
MANIFOLD PRESSURE
MAX. DEBIT CALORIFIQUE
PRESSION A LA TUBULURE D'ALIMENTATION
BTU/h
80,000
MAXIMUM INLET PRESSURE
MIN. HEAT INPUT
PRESSION D'ALIMENTATION MAXIMALE
MIN. DEBIT CALORIFIQUE
14.0
BTU/h
52,000
MINIMUM INLET PRESSURE FOR PURPOSE OF ADJ.
TYPE OF GAS
PRESSION D'ALIMENTATION EN GAS MIN. ADMISE
TYPE DE GAZ
NATURAL
VENT CATEGORY
ORIFICE SIZE
DIM DE L'INJECTEUR
ÉVENT CATÉGORIE
CATEGORY I
THIS DESIGN COMPLIES WITH STANDARD(S):
COMPLES DE CETTE CONCEPTION AVEC LA NORME:
ANSI Z83.20-2016 • CSA 2.34-2016 Low-Intensity Infrared Heater
FOR U.S.A. THIS HEATER IS APPROVED FOR ALTITUDES OF 0-2000 FT.
IN CANADA FOR ALTITUDES OF 4-4500 FT (0-1,370M) ABOVE SEA LEVEL
AU CANADA POUR ALTITUDE DE 0 A 4500 PIEDS (0-0,370M) D’ALTITUDE
DETROIT RADIANT PRODUCTS COMPANY
21400 HOOVER ROAD - WARREN, MI 48089
(586) 756-0950 www.reverberray.com
F/N: LLTB018 (Natural Gas)
F/N: LLTB019 (Propane Gas)
FIRE HAZARD. Always maintain published clearances to combustibles.
In locations used for the storage of combustible materials, signs must be
posted. Consult manual for additional guidelines.
CLEARANCES TO COMBUSTIBLES (in inches)
MODEL NO.
MOUNTING ANGLE*
TOP
6
0°
HL2-DS-30-65/
HL2-DS-30-80
9
30°
6
0°
HL2-DS-30-100
9
30°
SIDE VIEW END VIEW
EndEnd
* Heaters mounted on an angle between 1° and
30° must maintain clearances posted for 0° or
30°; whichever is greater.
** This heater must be installed at least 79” above
the floor/ground level (as applicable).
SIDE(S)
FRONT
25
36
25
4525 10
END VIEW
0° Mounting
Side Side
Below
ENDS
BEHIND
25
12
10
12
12
12
30° Mounting
Top
Front
Max.
30˚ Angle
This heater must be installed in accordance with the manufacturer’s
instruction and local codes, if any. In absence of local codes, follow the
latest edition of the National Fuel Gas Code, NFPA 54 (ANSI Z223.1) or
the CAN/CCA B149 installation codes.
Hot while in operation. DO NOT Touch. Keep children, clothing, and
BELOW**
combustible materials away. DO NOT store combustible materials under
60
this heater while in operation.
47
77
Keep burner and control compartment clean. See installation and
64
operating instructions accompanying heater.
APPLICATION: Minimum mounting height 79” above finished floor.
If this appliance is installed in one or more of the following locations, then the installation
Top
must be in accordance with the latest edition of the applicable standard(s):
• Aircraft Hangers - ANSI / NFPA 409
• Parking Structure - ANSI / NFPA 88A
Back
• Repair Garages - ANSI / NFPA 88B
Below
LOW-INTENSITY INFRARED HEATER
112671
VERSION
VOLTAGE
VAC
INCHES W.C.
1203.5
AMPS
INCHES W.C.
1.2
PHASE
INCHES W.C.
5.0
SINGLE
FREQUENCY
Hz
D.M.S.
22
60
MIN. MOUNTING ANGLE
MIN. ANGLE DE SUPPORT
0°
MAX. MOUNTING ANGLE
MAX. ANGLE DE SUPPORT
30°
HEATER BUILD TYPE
C1
FOR OUTDOOR USE ONLY
MADE IN U.S.A.
RADIATEUR À INFRAROUGE À FAIBLE INTENSITÉ
MODEL NUMBER
NUMÉRO DE MODÈLE
MAX. HEAT INPUT
MAX. DEBIT CALORIFIQUE
MIN. HEAT INPUT
MIN. DEBIT CALORIFIQUE
TYPE OF GAS
TYPE DE GAZ
VENT CATEGORY
ÉVENT CATÉGORIE
COMBUSTION CHAMBER
THIS DESIGN COMPLIES WITH STANDARD(S):
COMPLES DE CETTE CONCEPTION AVEC LA NORME:
ANSI Z83.20-2016 • CSA2.34-2016 RADIANT TUBE HEATER
Detroit Radiant Products Company
21400 Hoover Road Warren MI 48089
(586) 756-0950 www.reverberray.com
MODEL NO.
HL2-DS-30-65/
HL2-DS-30-80
HL2-DS-30-100
* Heaters mounted on an angle between 0° and
30° must maintain clearances posted for 0° or
30°, whichever is greater.
** This heater must be installed at least 79” above
the floor/ground level (as applicable).
SERIAL NUMBER
NUMÉRO DE SÉRIE
HL2-DS-30-80N
80,000
52,000
NATURAL
N/A - UNVENTED
TP-877
YYMMREPCSHIPPE####
MANIFOLD PRESSURE
PRESSION A LA TUBULURE D'ALIMENTATION
BTU/h
MAXIMUM INLET PRESSURE
PRESSION D'ALIMENTATION MAXIMALE
BTU/h
MINIMUM INLET PRESSURE FOR PURPOSE OF ADJ.
PRESSION D'ALIMENTATION EN GAS MIN. ADMISE
ORIFICE SIZE
DIM DE L'INJECTEUR
SAMPLE
FIRE HAZARD. Always maintain published clearances to combustibles.
In locations used for the storage of combustible materials, signs must be
posted. Consult manual for additional guidelines.
CLEARANCES TO COMBUSTIBLES (in inches)
MOUNTING ANGLE*
TOP
6
0°
9
30°
6
0°
9
30°
SIDE VIEW END VIEW
EndEnd
INCHES W.C.
14.0
INCHES W.C.
INCHES W.C.
5.0
D.M.S.
18
MIN. MOUNTING ANGLE
MIN. ANGLE DE SUPPORT
MAX. MOUNTING ANGLE
MAX. ANGLE DE SUPPORT
HEATER BUILD TYPE
THIS HEATER IS TO BE UN-VENTED ONLY
FOR OUTDOOR USE ONLY.
MADE IN U.S.A.
SIDE(S)
BEHIND
FRONT
25
25
10
36
25
4525 10
END VIEW
0° Mounting
Top
Side Side
Below
VOLTAGE
AMPS
PHASE
FREQUENCY
VERSION
09/17
1203.5
4.8
SINGLE
Max.
30˚ Angle
112671
60
ENDS
Front
VAC
Hz
0°
30°
C1
12
12
12
12
30° Mounting
Rating Plate
BELOW**
60
47
77
64
Top
Back
Below
F/N: LLTCL018
LLTCL016a-1x-05/17 (CDS)
Clearances to Combustibles Label
This heater must be installed in accordance with the manufacturer’s
instruction and local codes, if any. In absence of local codes, follow the
latest edition of the National Fuel Gas Code, NFPA 54 (ANSI Z223.1) or
the CAN/CCA B149 installation codes.
Hot while in operation. DO NOT Touch. Keep children, clothing, and
combustible materials away. DO NOT store combustible materials under
this heater while in operation.
Keep burner and control compartment clean. See installation and
operating instructions accompanying heater.
APPLICATION: Minimum mounting height 79” above finished floor.
If this appliance is installed in one or more of the following locations, then the installation
must be in accordance with the latest edition of the applicable standard(s):
• Aircraft Hangers - ANSI / NFPA 409
• Parking Structure - ANSI / NFPA 88A
• Repair Garages - ANSI / NFPA 88B
F/N: LLTCL016a
Safety Label
Bottom Panel
HL2-DS-30-80N
HL2-40-125N
HL2-125
Production Code:
9.14
Version:
Data on this label is for the model shown on this label. If your heater has been converted,
this information is not accurate. Please contact the factory for assistance.
BURNER COMPONENTS:
Gas Valve:
Circuit Board:
Wire Harness:
N.O. Switch:
N.O. VL Orifice:
N.C. Switch:
N.C. VL Orifice:
Diff Switch:
Diff VL Orifice:
Igniter:
Burner:
16” Tube:
Ind. Lights:
HEATER
TYPE:
C1
For parts replacement information, contact factory at 586-756-0950 or visit www.drp-co.com/parts.
(Specify TP-#’s)
36E96-224-N
Micro60-24
3 PCS Harness
None
None
None
None
SAMPLE
IS22010051F5169
Grey (+ / -)
Norton
Low-Mid
4” Gen.
Yellow - 120V
C1 C2 C3
Orifice Type:
Gas:
3
TP-204#
Air:
1 1/2”
TP-44#31 5/8”
840
Diag. Light:
851
Term. Block:
852
Transformer:
N/A
Fan:
Alt. Fan:
N/A
Alt. Fan Usage:
Relay:
264E
Filter:
24 Volt In:
50
120 Volt In:
3072
Gas In:
380
Extra VL Orifice:
828
3
1 5/8”
Serial No.: 0914XXXXXXXXXX 0001
None
Stock:
Add-On:
N/A
On Circuit Board
None
40 VA
Fasco Lg.
50Hz - 120V
When Specified
None
None
3 T-plug
2 x 4 Box
7/8” FC Flare
None
Internal Use Only:
Electric:
Tag:
LLWT038
None
Special 1:
Special 2:
F/N: LLLOGO032
4
N/A
826
55A
55B
N/A
N/A
832
66
83
Burner Control Box
Micro60
Component Label
Plug-Wh.
under the top panel)
(located
Page 5
HL2-DS Series
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1. Turn off gas & electricity.
2. Remove cover by lifting top
cover upward and outward.
CAUTION: HOT SURFACE.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
- INSTALLER: READ AND POST THIS NOTICE -
Left Panel
(Fan Compartment)
1.0 Introduction • Safety Labels and Their Locations
LED CODE FAULT STATUS FAULT CODE DELAY
Initial flash on power up,
then steady off
Steady on Module failure / Internal fault No delay
1 flash Ignition failure 3 minutes
2 flashes
4 flashes Erroneous flame signal No delay
No flash on 117V start-up Transformer fault No delay
NOTE: Lockout LED CODE appears on completion of the soft lockout operation.
No fault, normal operation No delay
APS air flow fault
NOTE: fan/intake/exhaust
F/N: LLTB007(3)
(Axed under the lid)
1-30 seconds
Avoid Serious Injury, Death, or Property Damage.
Maintain Clearances to Combustible to Prevent the Risk of Fire.
Clearances to combustibles must be maintained at
all times in order to prevent the ignition of
combustible materials. 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’s thermostats or, in the absence of such thermostats, in a
conspicuous location. Clearances are provided on the heater’s
safety label and in the heater’s Installation, Operation, and
Maintenance manual. Product installation and operation must
comply with applicable standards, codes, and regulations. Post
this tag adjacent to the heater’s thermostat or controls before
operating the heater.
F/N: LL001 - Clearance Safety Tag
(Ax adjacent to heater’s thermostat)
Right Panel
(Valve Compartment)
WARNING
California Proposition 65
This product can
expose you to
chemicals including
!
lead and carbon
monoxide, which are known to the
State of California to cause birth
defects or other reproductive harm.
For more information go to
www.P65Warnings.ca.gov.
LL001-XM-07/18 (CDS)
16” Burner Tube
F/N: LLV2EP15
F/N: LLV2EP9
F/N: LLV3EP4
White Crescent
24V
- 24V HEATER OUTPUT -
HIGH
LOW
24V OUT
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1. Turn off gas & electricity.
2. Remove cover by lifting top
cover upward and outward.
CAUTION: HOT SURFACE.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
F/N: LLTB026
5
Page 6
2.0 Safety • Warning Symbols • Applications
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HL2-DS Series
2.0 Safety
Read and understand all safety information and warnings in this manual prior to installation, operation,
and maintenance of this tube heater. Warnings indicate a potentially hazardous situation which, if not
avoided, could result in death or injury.
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, serious injury, or death. Read and understand the installation,
operation, and maintenance instructions thoroughly before installing or servicing this
equipment. Only trained qualied gas installation and service personnel may install or
service this equipment.
Warning Symbols
Safety is the most important consideration during installation, operation, and maintenance of the
heater. You will see the following symbols and signal words when there is a hazard related to safety or
property damage.
Warning indicates a potentially hazardous
situation which, if not avoided, could result in
death or injury.
Caution indicates a potentially hazardous
CAUTION
NOTICE
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.
Applications
This is not an explosion proof heater. This heater may not be used in a Class 1 or Class 2 Explosive
Environment. Consult your local re marshal, insurance carrier, and other authorities for approval if the
proposed installation is in question.
Patio
This patio heater is specically designed to provide heated comfort in a non-residential outdoor
environment. When properly integrated into a patio design, the heaters generally increase the comfort
levels.
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Page 7
HL2-DS Series
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!
2.0 Safety • Standards, Certications, and Government Regulations
Standards, Certications, and Government Regulations
Installation of this tube heater must conform with all applicable local, state, and national specications,
regulations, and building codes. Contact the local building inspector and/or re marshal 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).
Copies of the Standards can be viewed or purchased at www.nfpa.org.
WARNING
Not For Use in Indoor Living Spaces. Installing this unit in residential indoor living spaces or
sleeping quarters, such as bedrooms or basements, may result in property damage, serious injury,
or death. This unit is approved for unvented commercial/industrial outdoor use only.
WARNING
California Proposition 65
This product can expose you to chemicals including lead and carbon monoxide, which are known to
the State of California to cause birth defects or other reproductive harm.
For more information, go to www.P65Warnings.ca.gov.
7
Page 8
2.0 Safety • Clearances to Combustibles
!
!
HL2-DS Series
Clearances to Combustibles
A critical safety factor to consider before installation is the clearances to combustibles. Clearance to
combustibles
reector, and the combustible item
tube heater. The following is a partial list of items to maintain clearances from:
Combustible items: Moving Objects:
• Wood • Overhead doors
• Paper • Vehicle lifts
• Fabric • Cranes
• Chemicals • Hoists
Hazards:
For maximum safety the building must be evaluated for hazards before installing the heating system.
Examples include, but are not limited to:
is dened as the minimum distance you must have between the tube surface, or
. Considerations must also be made for moving objects around the
• Paint
• Parked vehicles
• Gasoline
• Storage racks
• 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
• Vehicle parking areas
• Vehicles with lifts or cranes
• Storage areas with stacked materials
• Lights
• Sprinkler heads
• Overhead doors and tracks
• Dirty, contaminated environment
WARNING
Placement of explosive objects, ammable objects, liquids, and vapors
close to the heater may result in explosion, re, property damage, serious
injury, or death. Do not store or use explosive objects, liquids, and vapor
in the vicinity of the heater.
CAUTION
Children and adults should be alerted to the hazards of high surface temperatures and should stay
away to avoid burns or clothing ignition.
Young children should be carefully supervised when they are in the same space as the heater.
Clothing or other ammable materials should not be hung from the heater or placed on or near the
heater.
Any guard or other protective device removed for servicing the heater must be replaced prior to
operating the heater.
Installation and repair should be done by a qualied service person. The heater should be inspected
before use and at least annually by a qualied service person. More frequent cleaning may be required
as necessary. It is imperative that the control compartment, air passageways, and burner(s) of the
heater be kept clean.
When installing the tube heating system, the minimum clearances to combustibles for your series tube
heater and system conguration must be maintained. These distances are shown in Chart 2.1 on page 9
and on the burner control box. If you are unsure of the potential hazards, consult your local re marshal,
re insurance carrier, or other qualied authorities on the installation of gas red tube heaters for
approval of the proposed installation.
8
Page 9
HL2-DS Series
!
2.0 Safety • Clearances to Combustibles
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’s thermostat or in a conspicuous
location.
The stated clearance to combustibles represents a surface temperature of 90°F (50°C) above room
temperature. Building materials with a low heat tolerance (such as plastics, vinyl siding, canvas, tri-ply,
etc.) may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure
that adjacent materials are protected from degradation.
WARNING
Failure to comply with the stated clearances to combustibles may result
in personal injury, property damage, and/or death.
Chart 2.1 • Clearances to Combustible Materials in Inches (see Figure 2.1)
Mounting
Model Number
HL2-DS-30-65 [N, P]
HL2-DS-30-80 [N, P]
HL2-DS-30-100 [N, P]
Heaters mounted on an angle between 0° and 30° must maintain clearances posted for 0° or 30°; whichever is
*
greater.
Angle*
0° 25 25 6 60 12
30° 36 10 9 47 12
0° 25 25 6 60 12
30° 36 10 9 47 12
0° 25 25 6 77 12
30° 45 10 9 64 12
Sides
Front Behind To p Below End
Figure 2.1 • Mounting Angles
0° Mounting Angle
To p
To p
30° Mounting Angle
Side Side
Below
Front
Behind
Below
9
Page 10
3.0 Installation • Design Considerations and Prechecks
!
HL2-DS Series
3.0 Installation
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, serious injury, or death.
Read and understand, the installation, operation, and maintenance instructions
thoroughly before installing or servicing this equipment.
Only trained, qualied gas installation and service personnel may install or service this
equipment.
Design Considerations and Prechecks
Placement of infrared heaters is inuenced by many factors. All installation manuals, along with national,
state, 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, and reectors. Inspect and evaluate the mounting conditions, gas
supply, and wiring.
When designing an infrared radiant heating system for a patio, consider the following:
• What expectations does the end user have for coverage and comfort level of the space?
• Does the design meet the needs of the space?
• Have recommended mounting heights been observed?
• Have all clearances to combustible situations been observed?
• Is the supply (burner) end of the heater located where more heat is required?
• Is it best to oset the heaters?
IMPORTANT: Fire sprinkler heads must be located at an appropriate distance from the heater. This
distance may exceed the published clearances to combustibles as posted on the heater. Certain
applications may require the use of high temperature sprinkler heads or relocation of the heaters.
Sprinkler systems containing propylene glycol or other ammable substances are not to be used in
conjunction with this heater without careful consideration for and avoidance of potential re or
explosion hazards. For further information consult NFPA 13.
The comfort level of a person or space may be diminished with wind velocities above 5 mph. The use of
adequate wind barrier(s) may be required (see page 18).
10
Page 11
HL2-DS Series
Figure 3.1 • Heater Dimensions
3.0 Installation • Recommended Mounting Heights
59.4”
3.25”
18.25”
END VIEW
9.5”
SIDE VIEW
11.75”
90.5” 45.6”
195.5”
Chart 3.1 • Recommended Mounting Heights and Coverages for HL2-DS Series Heaters
Distance
Max.
Input
(BTU/h)
Typical or
Recommended
Mounting Height*
Coverage Area
Straight Cong.
(LxW)
Between
Heaters (ft.)
Dim. A
65,000 9’ - 16’ 26’ x 12’ 10’ - 20’ 20’ - 40’ 16’
Distance
Between
Heater Rows
Dim. B
Max. Distance
Between
Heaters and
Wall - Dim. C
80,000 9’ - 16’ 26’ x 12’ 10’ - 20’ 20’ - 40’ 16’
100,000 9’ - 16’ 26’ x 12’ 10’ - 20’ 20’ - 40’ 16’
* Factory recommended mounting heights are listed as a guideline. If infrared heaters are mounted too
low or too high, they may result in discomfort due to excessive heat or lack of heat. Detroit Radiant
Products Company 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.
Figure 3.2 • Mounting Height Dimensions (see Chart 3.1 for dimensions)
Dim. A
Dim. B
Dim. A
Dim. C
Dim. C
NOTE: Dimensions A, B, & C are based upon heaters hung at the factory recommended mounting height.
11
Page 12
3.0 Installation • Heater Assembly Instructions
!
HL2-DS Series
Heater Assembly Instructions
WARNING
At least two people are required to assemble and hang this heater. Failure to follow
these instructions can result in property damage, serious injury, or death.
Read and understand the installation, operation, and maintenance instructions
thoroughly before installing or servicing this equipment.
Only trained, qualied gas installation and service personnel may install or service this
equipment.
Remove the lids from the two (2) tube and reector boxes and set end to end in assembly area. Place
1
one (1) tube and reector assembly on each box, with the “U” end on the outside and the tubes
facing upward (see Fig. 3.3).
Open the burner carton, remove the burner box, and place the empty carton at the burner end of the
2
rst tube and reector assembly.
Disconnect the pressure switch hose, Glo-Bar connector, and electrode wire from their respective
3
connections on the burner tube. Remove the conduit nut from the end of the conduit and set aside.
Holding the burner box on its side so as to keep the Glo-Bar clear, place the burner tube through the
reector, lining the swaged end up with the combustion tube (see Fig. 3.3). Rotate the burner box at
so the lid is facing downward. Carefully slide the burner tube into the combustion tube, and the
conduit and wires through the conduit hole in the reector. Screw the nut onto the conduit and
securely fasten.
Figure 3.3 • Assembly Layout
Conduit
Glo-Bar
Combustion
Tube
Reector
Burner Tube
Box Lid
Exhaust
Downturn
Burner End Tubes and Reector
Box Lid
U-End Tubes and Reector
Burner
Box
12
Page 13
HL2-DS Series
Figure 3.4 • Service Access Panel Connections
Burner Box
Pressure Switch Hose
3.0 Installation • Heater Assembly Instructions
Service Access Panel
Glo-Bar
Electrode
Wire
Rotate the service access panel up so the Glo-Bar compartment is accessible. Re-connect the
4
Glo-Bar, pressure switch hose, and electrode wire, leaving the Glo-Bar connector just outside of the
conduit (see Fig. 3.4). Carefully rotate the service access panel back to its closed position.
Ensure that swedged end of the burner tube is completely inserted into the combustion tube, then
5
secure with one (1) included sheet metal screw.
Align both tube and reector assemblies, then carefully slide the assemblies together, guiding the
6
radiant tubes into one another. The exhaust end reector will slightly overlap the burner end
reector. The tube and reector assemblies are in the correct position when the reector screw
holes are aligned (see Fig. 3.7).
Remove the screw holding the exhaust downturn and set aside. Insert the bae into the exhaust
7
tube, locking each bae together as they are inserted. Once in the tube, ensure the baes are in
the vertical position and ush with the end of the tube (see Fig. 3.5). Reattach the exhaust downturn
and secure with one (1) sheet metal screw.
Figure 3.5 • Bae Placement Figure 3.6 • Bae Assembly
Bae
Radiant Tube
13
Page 14
3.0 Installation • Heater Assembly Instructions
Secure both radiant tube sections together with one (1) included self-tapping screw in each.
8
Using the four (4) screws provided and a nut driver, attach the reectors together so that the screws
9
HL2-DS Series
are hand tight. Do not overtighten as this will not allow for the expansion and contraction of the
reectors.
Figure 3.7 • Tube and Reector Assembly
Sheet
Metal
Screw
Reector Overlap with
Reector Screw Holes
Aligned
14
Page 15
HL2-DS Series
10
Insert the bolt in the nutsert and secure (see Fig. 3.8).
11
With one person positioned at each end of the heater, carefully ip the unit over and set back down
3.0 Installation • Heater Assembly Instructions
onto the cartons. Using the supplied bolts attach the hanging brackets to the top of the unit (see Fig.
3.8).
Figure 3.8 • Mounting Bracket Placement
Bolt
Lock Washer
Flat Washer
Bolt
Flat Washer
Hanging
Bracket
Hanging
Chain
Bracket
Hanging
Bracket
15
Page 16
!
3.0 Installation • Heater Placement and Suspension
HL2-DS Series
Heater Placement and Suspension
WARNING
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 clearances to combustibles may result in re 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.
Suspension of the heater must conform to applicable codes referenced in the Safety section and these
instructions.
Mark locations for hanging points.
1
Prepare mounting surface. If necessary, weld blocks and drill holes.
2
Fasten beam clamp, screw hook, or other type of suspension anchor to hanging point.
3
Attach and close stainless steel S-hook and 1/0 stainless steel bulldog chain to anchor. Check that it
4
is securely attached. NOTE: Threaded rod may be used.
Attach stainless steel S-hooks to turnbuckles and hanging bolts inserted through the hanging
5
brackets. Adjust chain lengths until heater is level and equal weight distribution is achieved.
Once heater is level, insert egg crate assemblies by sliding into the reector, 2 from each end (see Fig.
6
3.10).
Attach the end panel brackets to the reector on the burner box end and U-end to secure egg crates.
7
Figure 3.9 • Mounting the Hangers
Turnbuckle
Bolt, Nut, Flat Washer,
and Lock Washer
1/0 Stainless Steel
Bulldog Chain
1/0 Stainless Steel
Bulldog Chain
16
Page 17
HL2-DS Series
3.0 Installation • Sway Bracing for High Air Movement and Outdoor Applications
Figure 3.10 • Egg Crate Installation
Egg Crate
End Panel Bracket End Panel Bracket
Egg CrateEgg Crate Egg Crate
Sway Bracing for High Air Movement and Outdoor Applications
For high air movement and outdoor applications, install side restraints (eld supplied) to reduce side to
side swaying (Fig. 3.11). Side restraints should be installed so that they are angled at 45° ± 10° and
should be placed at every designated suspension point. It may be necessary to add additional support
structures at the ceiling level for the connection of these side suspensions. Apply longitudinal (forward/
backward) bracing (eld supplied) at each reector hanging bracket. The desired suspension material
shall have a minimum work load rating of 200 pounds.
Figure 3.11 • Heater with Sway Bracing Installation
1/0 Stainless Steel
Bulldog Chain
Longitudinal
Bracing
(Field Supplied)
Side Restraints
(Field Supplied)
Stainless Steel
S-Hook
Turnbuckle
Side Restraint
Longitudinal Bracing
1/0 Stainless Steel
Bulldog Chain
17
Page 18
3.0 Installation • Outdoor Unvented Operation
!
HL2-DS Series
Outdoor Unvented Operation
WARNING
This appliance must be used outdoors only! Use of this heater indoors may result in
property damage, serious injury, or death.
This is an unvented, outdoor appliance. If the use of wind barriers is required, consider the
following:
• Where wind barriers are used, natural or mechanical means must be provided to supply and
exhaust a minimum of 4 cfm/1000 BTU/h input of installed heaters.
NOTE: Gravity or mechanical means may be used to accomplish the air displacement. Local
codes may require that the mechanical exhaust system be interlocked with the electrical supply
line to the heaters, enabling both to function simultaneously.
• When the space requires mechanical ventilation, the exhaust openings for removing the ue
products must be located above the level of the heater(s).
Figure 3.12 • Minimum End Clearances
12 in. Min.
All heaters
12 in. Min.
Unvented
heaters
18
Page 19
HL2-DS Series
!
!
3.0 Installation • Gas Supply Installation Instructions
Gas Supply Installation Instructions
The gas supply to the unit heater must be connected and tested in accordance with national, state,
provincial, and local codes along with guidelines in this manual. In the United States refer to the latest
edition of the ANSI Z223.1 (NFPA54) Standard.
Supply gas piping to the unit should conform with the local and national requirements for type and
volume of gas handled, and pressure drop allowed in the line. Avoid pipe sizes smaller than 1/2”.
WARNING
Improperly connected gas lines may result in serious injury and death,
explosion, poisonous fumes, toxic gases, or asphyxiation. Connect gas lines
in accordance to national, state, provincial, and local codes.
Gas pressure to the appliance controls must never exceed ½” PSI (14” W.C.). Damage to the controls
may result.
CAUTION
Gas lines should be purged of air as described in ANSI Z223.1 (NFPA 54) or CSA-B149.1– latest
version. Installation of the piping must also conform with the local building codes or, in the
absence of local codes, with the latest edition of the National Fuel Gas Code (NFPA 54).
NOTICE
The total input to the appliance must fall within +/- 5% of the rated input as indicated on the
rating plate. Otherwise the heat exchanger may prematurely fail.
IMPORTANT! Before connecting the gas supply to the burner control box:
• Verify that the heater’s gas type (as listed on the rating plate) matches that of your application and
the installation complies with national and local codes and requirements of the local gas company.
• Unless otherwise noted on the rating plate, this infrared heater is designed and oriced to operate
on standard BTU gas. Contact the factory if utilizing non-standard BTU gas.
• Check that the gas piping and service has the capacity to handle the total gas consumption of all
heaters being installed, as well as any other gas appliances being connected to the supply line.
• Check that the main gas supply line is of proper diameter to supply the required fuel pressures.
• If utilizing used pipe, verify that its condition is clean and comparable to a new pipe. Test all gas
supply lines in accordance with local codes.
19
Page 20
3.0 Installation • Gas Supply Installation Instructions
!
!
HL2-DS Series
To connect the gas:
WARNING
Failure to install, operate, or service this appliance in the approved manner may result in
property damage, injury, or death. Only trained, qualied gas installation and service
personnel may install or service this equipment.
The HL2-DS series heater is equipped to connect to the corrugated stainless steel tube (CSST) exible
gas connector (Included). Do not connect the main gas line directly to the heaters gas inlet without
the use of the exible connector. All piping must be installed in accordance with the requirements
outlined in the National Fuel Gas Code ANSI/Z223.1 (latest edition) or CSA-B149.1. Support all gas
piping with pipe hangers, metal strapping, or other suitable material. Do not rely on the heater to
support the gas pipe.
When connecting piping to the unit, the use of a thread joint compound is required. The thread
compound (pipe dope) shall be resistant to the action of liqueed petroleum gas or any other chemical
constituents of the gas to be conducted through piping. Use of Teon
®
tape is not permitted.
WARNING
Always use two (2) opposing wrenches to tighten mating pipe connections
to prevent excessive torque on the gas valve and manifold pipe. Excessive
torque can damage the valve and/or misalign the orice, resulting in re,
explosion, serious injury, or death.
Connect the main gas supply line with an approved exible connector or, if the authority having
jurisdiction requires rigid piping, the use of approved swing joints may be used. If swing joints are utilized,
the heater must be allowed to freely expand and contract without causing undue stress on the gas pipe.
The heater shall not be connected to the building piping system with rigid pipe or semi-rigid metallic
tubing, including copper. When using such material, an intermediate connection device that allows for the
heater expansion must be used.
The gas outlet must be in the same room as the appliance is installed, and must be accessible. It may not
be concealed within or run through any wall, oor, or partition. When installing the heater in a corrosive
environment (or near corrosive substances), use a gas connector suitable for the environment. Do not use
the gas piping to electrically ground the heater.
20
Page 21
HL2-DS Series
!
3.0 Installation • Installation of the Gas Line to the Heater
Installation of the Gas Line to the Heater
Install a sediment trap / drip leg in the supply line at the lowest spot prior to the gas ball valve. The
1
trap length shall be at least three inches long. Ideally, the trap would be installed as close as possible
to the shut o. NOTE: For high pressure gas above 14” W.C., a high pressure regulator and ball valve
must be utilized and located upstream of the ex connector.
Install manual shut o ball valve with optional 1/8” NPT Test connection towards the supply line. The
2
manual shut o ball valve must be located within 6 feet of the appliance’s service access door.
Install the 5/8 inch are to ½” NPT adapter piece downstream of the gas valve as shown in Figures
3
3.13-3.14. This piece is typically included with the exible gas connector, loosely installed on one of
the are nuts. NOTE: Keep are surfaces clean and free of sealing compounds. Only the pipe
threads require sealing compounds.
Form the 1/2” x 24” stainless steel exible gas connector into a smooth C-shape, allowing
4
approximately 12 inches between the exible connector’s end nuts (see Figure 3.13). The connector
must reach from the gas supply to the appliance without stretching, kinking, or twisting.
Attach the exible connector to the 5/8” are adapter on the gas line and the other end to the 5/8”
5
are on the heaters inlet pipe. DO NOT connect the connector are nuts directly to pipe threads.
Use only the adapters provided. DO NOT kink, twist, or over-torque the connector when installing.
CAUTION
When using a stainless steel exible gas connector, do not attach the connector nuts directly to the
gas pipe supply. Connector nuts must be installed to an approved adapter.
Figure 3.13 • Gas Connection (Flexible Gas Connection Shown)
NOTE: Do not exceed 14 Inches W.C. to the appliance.
Ball Valve / Inlet Tap
Adapter
Ball Valve / Inlet Tap
45°
45°
Horizontal
Remove cap to clean
sediment trap
12”
2” max displacement
Heater Movement
Adapter
Drip Leg/
Sediment Trap
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1. Turn off gas & electricity.
2. Remove cover by lifting top
cover upward and outward.
CAUTION: HOT SURFACE.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
Burner
Control Box
Burner Control Box
Stainless Steel Gas Connector,
formed into smooth C-Shape
In Canada, the infrared heater shall only be connected with a Type I hose connector that is (a) certied
as being in compliance with the
Conducting Propane and Natural Gas, CAN/CGA 8.1
Standard for Elastomeric Composite Hose and Hose Couplings for
; and (b) of a length of 36 ± 6 in (90 ± 15 cm).
21
Page 22
3.0 Installation • Installation of the Gas Line to the Heater
HL2-DS Series
Refer to Chart 3.2 for natural gas and Chart 3.3 for propane to determine the cubic feet per hour (CFH)
required for the type of gas and size of unit to be installed. To determine the proper pipe diameter, use the
CFH value and the length of pipe necessary from Chart 3.4. In the case where several units are serviced
by the same main gas line, the total capacity (CFH) and length of main must be adequate to service all
appliances downstream of this main.
Chart 3.2 • Natural Gas Consumption
Max. Inlet
Pressure
(Inches W.C.)
Model
HL2-DS-30-65
HL2-DS-30-80
HL2-
DS-30-100
Manifold
Input
High/Low
65,000 (High) 3.5
50,000 (Low) 2.2 47.6
80,000 (High) 3.5
52,000 (Low) 1.7 49.5
100,000 (High) 3.5
65,000 (Low) 1.8 61.9
Pressure
(Inches W.C)
Min. Inlet
Pressure
(Inches W.C.)
5.0 14.0
5.0 14.0
5.0 14.0
* Assumes an average heating value of 1050 BTU/SCF and a Specic Gravity of 0.60.
Chart 3.3 • Propane Gas Consumption
Model
HL2-DS-30-65
HL2-DS-30-80
HL2-
DS-30-100
Manifold
Input
High/Low
65,000 (High) 10.0
50,000 (Low) 4.8 20 .54
80,000 (High) 10.0
52,000 (Low) 4.8 21 .56
100,000 (High) 10.0
65,000 (Low) 4.8 26 .71
Pressure
(Inches W.C.)
Min. Inlet
Pressure
(Inches W.C.)
11.0 14.0
11.0 14.0
11.0 14.0
Max. Inlet
Pressure
(Inches W.C.)
Consumption
Gas Consumption
(CFH)*
61.9
76.2
95.2
Gas
Gallons
(CFH)*
26 .71
32 .87
40 1.08
p/ Hour
* Assumes an average heating value of 2500 BTU/SCF and a Specic Gravity of 1.53.
Chart 3.4 allows for a 0.3 inch W.C. pressure drop in the supply pressure from the building main to the inlet
of the unit. Refer to the chart for the appropriate range of inlet pressures for each gas type. When sizing
the inlet gas pipe diameter, make sure that the unit supply pressure can be met after the 0.3 inch W.C.
pressure drop has been subtracted from the main pressure. If the 0.3 inch W.C. pressure drop is too high,
refer to NFPA 54 or the Gas Engineer’s Handbook for other gas pipe capacities.
Install ground joint union with a brass seat and a manual shut-o valve adjacent to the unit for
emergency shut-o and easy servicing of controls. A 1/8” NPT plugged tap that is accessible for a test
gauge connection is also recommended, as illustrated in Figure 3.14.
A sediment trap must be installed in the supply line in the lowest spot prior to connecting to the heater.
The trap length shall be at least three inches long. Ideally, the trap would be installed as close as
possible to the shut-o, as shown in Figure 3.14.
22
Page 23
HL2-DS Series
3.0 Installation • Gas Supply Installation Instructions
Figure 3.14 • Recommended Hardware • Manual Shut O and Sediment Trap
In Canada, infrared heater shall only be
connected with a Type I hose connector
that is (a) certied as being in compliance
with the
Composite Hose and Hose Couplings for
Conducting Propane and Natural Gas, CAN/
CGA 8.1
± 15 cm).
Standard for Elastomeric
; and (b) of a length of 36 ± 6 in (90
1/2” x 24” 304 Stainless Steel Gas
Connector formed into smooth
C-Shape
Shut O
Flow of Gas
1/8-in. NPT Test
Connection (Plugged)
Ground Joint
Union
Sediment
Tra p
To Unit
3-in.
Minimum
Chart 3.4 • Maximum Capacity for Schedule 40 Metallic pipe, in CFH
Pipe
Length
10 feet 132 86 278 182 520 340 1050 686 1600 1046 3050 1993
20 feet 92 60 190 124 350 229 730 477 1100 719 2100 1373
30 feet 73 48 152 99 285 186 590 386 890 582 1650 1078
40 feet 63 41 130 85 245 160 500 327 760 497 1450 948
50 feet 56 37 115 75 215 141 440 288 670 438 1270 830
60 feet 50 33 105 69 195 127 400 261 610 399 1150 752
70 feet 46 30 96 63 180 118 370 242 560 366 1050 686
80 feet 43 28 90 59 170 111 350 229 530 346 990 647
90 feet 40 26 84 55 160 105 320 209 490 320 930 608
100 feet 38 25 79 52 150 98 305 199 460 301 870 569
125 feet 34 22 72 47 130 85 275 180 410 268 780 510
150 feet 31 20 64 42 120 78 250 163 380 248 710 464
175 feet 28 18 59 39 110 72 225 147 350 229 650 425
200 feet 26 17 55 36 100 65 210 137 320 209 610 399
1/2” 3/4” 1” 1-1/4” 1-1/2” 2”
Nat Prop Nat Prop Nat Prop Nat Prop Nat Prop Nat Prop
The HL2-DS series heater is equipped to receive a gas supply line nipple of ½”NPT Schedule 40
metallic pipe. All piping must be installed in accordance with the requirements outlined in the National
Fuel Gas Code ANSI/Z223.1 (latest edition) or CSA-B149.1. Support all gas supply piping with pipe
hangers, metal strapping, or other suitable material. Do not rely on the heater to support the gas pipe.
23
Page 24
!
!
!
3.0 Installation • Gas Supply Installation Instructions • Leak Testing
When connecting piping to the unit, the use of a thread joint compound is required. The thread
compound (pipe dope) shall be resistant to the action of liqueed petroleum gas or any other
chemical constituents of the gas to be conducted through the piping. Use of Teon
permitted.
HL2-DS Series
®
tape is not
WARNING
Always use two (2) opposing wrenches to tighten mating pipe connections
to prevent excessive torque on the gas valve and manifold pipe. Excessive
torque can damage the valve and/or misalign the orice, resulting in re,
explosion, serious injury, or death.
Leak Testing
WARNING
Use a soap solution or equivalent for leak testing. Never test for leak with an open
ame. Failure to comply could result in personal injury, property damage, or death.
Always leak test nal gas assembly for gas leaks according to the procedures outlined in NFPA 54 and
all local codes and/or Standards.
For leak testing on pressures below ½” PSI
Before leak testing, close the eld installed manual shut o valve shown on Figure 3.14 on the supply
line to isolate the gas valve from the pressure.
NOTE: All factory installed gas connections have passed an approved leak test.
For leak testing on pressures above ½” PSI
When leak testing with pressures above ½” PSI (14” W.C.), the unit must be isolated from the supply
pipe. Close the eld installed manual shut o valve, disconnect the supply line to the unit, and
temporarily cap the supply line for testing purposes.
WARNING
Gas pressures to the appliance controls must never exceed 14” W.C. (1/2” PSI). Supply
pressures greater than 14” W.C. can damage the controls, resulting in personal injury,
property damage, or death.
24
Page 25
BK
LIGHT
LIGHT
LIGHT
HL2-DS/HL3/AG2 SERIES
LLWT106
HL2-DS Series
!
3.0 Installation • Electrical Requirements and Wiring Diagram • Internal Wiring Diagram
Electrical Requirements and Wiring Diagrams
WARNING
Shock hazard. Disconnect power supply before making wiring connections to prevent
electrical shock and equipment damage.
Any original factory wiring that requires replacement must be replaced with wiring
material having a temperature rating of at least 105°C minimum voltage.
All eld installed wiring to the tube heater must be must be done in accordance with the national,
state, provincial, local codes, and to the guidelines in this manual. In the United States, refer to the
most current revisions to the Electrical Code ANSI/NFPA 70. The unit must be electrically grounded
according to these codes. Line polarity must be observed when making eld connections.
Internal Wiring Diagram
Before wiring this appliance, check the existing wiring; replace if necessary. If any of the original wire
supplied with the appliance must be replaced, it must be replaced with copper wiring material having
a rating of at least 300 V, 105°C.
Figure 3.15 • Internal Wiring Diagram
L2L1
W
G
BK
G
Y
W
BK
BK
INDICATOR
GAS VALVE
TRANSFORMER
120V
BK
G
24V
BL
BL
GY
BK
BLOWER
G
BK
BK
LOW FIRE HIGH FIRE P.S.
INDICATOR
G
BK
BKBK
INDICATOR
PRESSURE
W
TERMINAL*
R
BL
SWITCH
G
IGNITER
BK
BK
T'STAT
O
BK
FLAME
SENSOR
IGN/120
L1
IGN/240
L2
IGN/FS
IGNITION
PS
MODULE
TH
24V
VAL
GND
PRPK O
C
G
*W/YELLOW CORD
R
O
BL
W GBK
25
Page 26
!
!
!
3.0 Installation • Field Wiring Supply Voltage
HL2-DS Series
WARNING
Incorrect or improper wiring may result in shock, injury, or death. Field wiring to the heater
must be connected and grounded in accordance with national, state, provincial, local
codes, and to the guidelines in this manual. Refer to the most current revisions to the
ANSI/NFPA 70 Standard.
All eld wiring to the HL2-DS series heater must be done in accordance with the national, state,
provincial, local codes, and the guidelines in this manual. In the United States, refer to the most current
revisions to the Electrical Code ANSI/NFPA 70. The unit must be electrically grounded according to
these codes.
Field Wiring Supply Voltage
Before proceeding with electrical connections, ensure that the supply voltage, frequency, phase, and
current capacity meet the requirements specied on the rating plate. A dedicated line voltage supply
with properly sized wire should run directly from the main electrical panel to the heater. The power to
the unit must be protected with a circuit breaker appropriate for the load. The unit must be electrically
grounded in accordance with local codes, or in their absence, with the latest edition of the National
Electrical Code, ANSI / NFPA 70 and/or the Canadian Electrical Code CSA C22.1, latest edition.
CAUTION
The power supply to the heater must be within +/- 5% of the voltage rating as indicated on the
rating plate of the appliance. If input power does not meet these specications, contact your utility
company.
The heater comes equipped with a supply cord to connect the main power supply. It is located at the
rear of the heater’s burner box, and utilizes a grounding prong. This plug must be connected into an
appropriate outlet receptacle that is properly installed and grounded in accordance to local codes
and ordinances.
The grounding receptacle must be installed within 5 feet of the heater’s service panel, and located in
the space occupied by the appliance. When plugging in the heater, make sure the supply cord is
protected from damage, and keep all cords away from the heater’s surfaces and out of the clearance
to combustible zones (see page 9). When routing the electrical supply for the unit, ensure that it does
not interfere or obstruct the heater’s service panel. Keep any electrical supply cord away from any
heated surfaces.
WARNING
Electric Shock Hazard
Do not force the three-prong plug into the grounded outlet, modify the plug, or use an
adapter. Never operate this appliance if the cord or plug is damaged.
26
Page 27
HL2-DS Series
R
W1
W2
CONTROL DEVICE
TYP. TWO-STAGE T-STAT OR
SWITCH
G
W
B
3.0 Installation • Thermostat Connection • Thermostat Location
Thermostat Connection
NOTE: Dierent thermostats operate according to their particular features. Refer to thermostat
specications for details.
HL2-DS series heaters may be controlled by a thermostat or switch. The control voltage is 24 VAC and
the burner control box is equipped with a 60” yellow 24 VAC control wire. Do not supply 120 VAC to the
24 VAC connection.
Figure 3.16 • Field Wiring Diagram - Controlling a single heater with a single control device
Starting Amp Draw: 4.8 Amps
Running Amp Draw: 1.1 Amps
Figure 3.17 • Field Wiring Diagram - Controlling multiple heaters with a single control device
Starting Amp Draw: 4.8 Amps
Running Amp Draw: 1.1 Amps
CONTROL DEVICE
TYP. TWO STAGE T-STAT OR
TRANSFORMER
L1
L2
Field Wiring:
1
When controlling multiple heaters with a single control device, one ERK or ERK-HE per heater is
required.
2 An external 24 VAC transformer (.2 Amp) per heater is required (supplied by installer).
3 Maintain electrical polarity when hooking up multiple heaters.
4 Allow heaters to be switched by zones for heating exibility.
5 Do not attempt to install transformer inside of heater.
SWITCH
R
W1
W2
C
120V
G W B
OPTIONAL 24V COMMON
CHECK THERMOSTAT
INSTRUCTIONS TO SEE
IF NEEDED
24V
RELAY BOX
P/N: ERK
(1 PER HEATER)
W1
C
W2
G W B G W B
RELAY BOX
P/N: ERK
(1 PER HEATER)
W1
C
W2
RELAY BOX
P/N: ERK
(1 PER HEATER)
W1
C
W2
27
Page 28
4.0 Operation • Sequence of Operation
HL2-DS Series
4.0 Operation
Sequence of Operation
Standby: The circuit board continually checks for internal faults, circuit integrity, and relay contact
positioning.
Starting Circuit: Upon a call for heat, the control veries that the dierential switch is in the proper
position (open). The control energizes the fan. Once operational static pressure is achieved, the
dierential switch will close initiating the ignition sequence. The glo-bar is powered and the gas
valve opens after 45 seconds. If the ame is not sensed, the heater will attempt to re-ignite for a
total of three (3) trials for ignition before proceeding to soft lockout.
Low Fire Running Circuit: After ignition, the ame rod monitors burner ame. If sense of ame is lost,
the control closes the gas valve within one second and a new trial sequence (identical to the
starting sequence) is initiated. If ame sense is not established within 8.5 seconds, the heater will
attempt two (2) additional ignition sequences before proceeding to soft lockout. The control can
be reset by briey interrupting the power source.
High Fire Running Circuit: The second stage on the gas valve is powered directly from the second
stage of the thermostat. In order for two stage to ow to a higher output, single stage must be
energized as well. The thermostat determines which stage to maintain for the desired
temperature.
Shut Down: When the thermostat is satised, the fan will enter a two (2) minute post-purge cycle.
28
Page 29
HL2-DS Series
4.0 Operation • Diagnostics
Diagnostics
Lockout:
The controls will automatically lockout the heater system when an external or system fault occurs. There
are two types of lockout:
Soft Lockout: The heater will attempt to light three times. In the event of a failed attempt to light, (gas
pressure, valve, no ame sense, etc.), the heater will enter a Soft Lockout period for 30
minutes and then attempt to light three more times before entering Hard Lockout
mode.
Hard Lockout: If proof of ame is not established, a component failure occurs, or blockages are
evident, the heater will enter Hard Lockout. If lockout occurs, the control can be reset
by briey interrupting the power source. Refer to Chart 4.1 below for a description of
LED codes.
Figure 4.1 • External LED Operation Indicator Lights
NOTE: Hard lockout LED CODE will appear upon completion of the soft lockout sequence of operation.
Light 3 (green)
Indicates Pressure
Switch Closes
Operational Indicator Lights
Light 1 (amber)
Indicates Low
Fire Mode
Light 2 (amber)
Indicates High
Fire Mode
Chart 4.1 • LED Fault Code Status (Located on Circuit Board Inside Control Box)
LED Code Fault Status Fault Code Delay*
Initial ash on power up, then
steady o
Steady ON Module failure / Internal fault No Delay
1 ash Ignition failure 3 minutes
2 ash
4 ashes Erroneous ame signal No Delay
No ash on 117 V startup Transformer fault No Delay
* Some LED codes have a time delay before the LED will ash.
No fault, normal operation No Delay
APS (Air Proving Switch)
Fan / Intake / Exhaust
1 - 30 seconds
29
Page 30
5.0 Troubleshooting Guide
5.0 Troubleshooting Guide
Turn up thermostat.
HL2-DS Series
Does the fan
blower turn on?
Ye s
Find the source of the
electrical problem
between panel and
external transformer.
External transformer
is faulty and must be
replaced.
Is the power at the
No
heater 120 V?
Ye s
No
Find the source of the electrical problem between panel and heater.
No
Is there 120 V on the
primary side of the
external transformer?
No
Check the power across the
green and white wires of the
yellow control cord.
Is there 24 V power?
Ye s
Is there 24 V on the
No
secondary side of the
external transformer?
Ye s
Is there
24 V to the
thermostat?
No
Find source of electrical problem between
the external transformer and thermostat.
Ye s
Ye s
The thermostat or
wiring is faulty and
should be replaced
or repaired.
Does the green pressure
switch light illuminate?
Ye s
Does the igniter
warm up and
glow red?
Ye s
No
No
Is the igniter
physically
damaged?
Is the green light burnt out?
Yes
Replace igniter.
If so, replace.
Check voltage at igniter
sequence (usually 5 to 15
No
seconds after power to
No
No
heater). Is it 120 V?
Yes
Is the resistance through
the igniter 50-400 Ω?
Ye s
Replace circuit board.
Is the inlet or the outlet
of the unit plugged or
obstructed?
Remove obstruction.
No
No
Ye s
Continued on page 32
Consult factory.
30
Page 31
HL2-DS Series
5.0 Troubleshooting Guide
NOTICE
Start
Question
Is the power across
the 24 V terminal and
ground on the
circuit board 24 V?
during normal operation or the heater’s built-in safety mechanisms will be compromised.
No
Bypassing any switch is intended for testing purposes only. Do not leave switch bypassed
Key
Process
Question
Ye s
Is the power across
the TH terminal and
ground on the circuit
Corrective
Action
board 24 V?
No
The low re relay is faulty
and must be replaced.
Check circuit board for
Ye s
ashing fault code. Is the
circuit board sending
Is the pressure
switch stuck in the
closed position?
120 V to the fan?
No
Ye s
Remove
obstruction.
Ye s
Ye s
Replace switch.
Is the fan
obstructed?
No
Is there 120 V on the
primary side of the
internal transformer?
No
Repair wiring between
power in and transformer.
Check for loose wiring or
restrictions in hose connec-
tions to pressure switch.
Are they OK?
No
Replace wiring or hose
connections.
Ye s
Ye s
The internal
transformer is
faulty and must
be replaced.
*A
fter 1-30 seconds of
non-operation has passed,
is there a ash code for
APS fault (2 ashes)?
The circuit board is
faulty and must be
No
Consult factory.
No
replaced.
Ye s
The fan is faulty and must be replaced.
Replace the pressure switch after
verifying:
• Bae(s) are in the radiant tube furthest
from the burner.
• Heater, fan blowers ,squirrel cage, intake
and exhaust are clean and free from dirt
and obstructions.
• There is not a negative pressure
experienced at the area of air intake (e.g.;
high winds, attic space, tightly sealed
building).
*Refer to LED diagnostic Fault Code Chart; p.29.
31
Page 32
5.0 Troubleshooting Guide
Continued from page 30.
HL2-DS Series
After igniter is warmed up, does gas
valve open (low light illuminates)?
Ye s
Does the
burner light?
No
in the ON position?
Ye s
Does the burner
stay on?
Ye s
No
Does the burner stay on
for approx. 8 seconds
Does the burner come
No
Is the ball valve/
shut-o valve
No
Turn on.
and then shut o?
No
on and turn o
immediately
(1 or 2 seconds)?
Test for 24 V at valve opening period (usually 30 to 45 seconds
after power to heater). Is there 24 V to valve for 8 seconds?
No
Replace circuit board.
Check to make sure gas pressure is within
Ye s
minimum and maximum inputs, as indicated on
the heater’s rating plate. Is gas pressure OK?
No
Correct problem.
Ye s
Check to make sure gas pressure
Ye s
is within minimum and maximum
inputs, as indicated on the heater’s
rating plate. Is gas pressure OK?
Ye s
Ye s
Ye s
Pressure
switch may
be faulty or
there is a
restriction in
the exhaust.
Does the heater
stay ON until a
call for heat ends?
Ye s
Troubleshooting ends.
The heater can shut down due to:
No
• Improper grounding.
• High winds.
• Dirty environment.
• Improperly positioned baes.
• Fluctuating gas pressure.
No
Correct problem.
32
Page 33
HL2-DS Series
5.0 Troubleshooting Guide
NOTICE
Check to make sure gas pressure is within minimum and
maximum inputs, as indicated on the heater’s rating plate.
during normal operation or the heater’s built-in safety mechanisms will be compromised.
Is gas pressure OK?
No
Bypassing any switch is intended for testing purposes only. Do not leave switch bypassed
Correct problem.
Were the gas lines purged of air?
Ye s
No
Purge gas line.
Is the heater properly
grounded? Is the heater’s
polarity correct?
Ye s
With micro-ammeter, check amperage
at ame rod (or pins on circuit board).
Is it greater than 1.0 µA (micro-amp)?
Ye s
Replace gas valve.
Check to make sure ame
Ye s
sensor wire is OK and then
replace circuit.
No
Correct problem.
Sensing rod is faulty or ame is weak.
Check to make sure heater is operating
at proper gas pressure as indicated on the
heater’s rating plate and then, if needed,
No
replace sensing rod.
If the heater does not enter High Fire mode, check the following:
Check the power across the green
and black wires of the yellow
control cord. Is there 24 V?
No
NOTE: To conrm that the heater is not in high re
mode, check the manifold pressure. If it is 3.5” (natural
gas) or 10” (propane), the indicator light is faulty and
should be replaced. If approximately 2.0” to 2.5”
(natural gas) or 5.0” to 6.5” (propane), the heater is in low
re mode and the troubleshooting steps described here
should be followed.
Repair or replace the faulty
wiring or thermostat.
Ye s
Measure the voltage across
the red wire on the relay
board and ground on the
circuit board. Is there 24 V?
Ye s
The valve is
faulty and must
be replaced.
No
The high re relay is faulty
and must be replaced.
33
Page 34
6.0 Maintenance • Routine Maintenance and Inspection
!
HL2-DS Series
6.0 Maintenance
WARNING
Personal injury or death may result if maintenance is not performed by properly
trained gas installer or service personnel. Contact the installing distributor or place
of purchase for service. Do not operate heating system if repairs are necessary.
Allow heater to cool prior to servicing.
Disconnect power to heater before servicing.
Use protective glasses when maintaining the heater.
Routine Maintenance and Inspection:
At least once per year, the heating system should be inspected and serviced by trained gas
installation and service personnel only. This inspection should be performed at the beginning of the
heating season to ensure that all heater components are in proper working order and that the heating
system operates at peak performance. Particular attention should be paid to the following items.
• Clearances to Combustibles: Inspect the area near the unit to be sure there is no combustible
material located within the minimum clearance requirements listed in this manual. Under no
circumstances should combustible material be located within the clearances specied in this
manual. Failure to provide proper clearance could result in personal injury or equipment damage
from re.
• Gas Connection: Inspect the integrity of the gas connection to the heater. Check for leaks,
damage, fatigue or corrosion. Do not operate if repairs are necessary and turn o gas supply to
the heater. Contact service personnel.
To check gas tightness of the safety shut-o valves, turn o the manual valve upstream of the appliance
combination control. Remove the hex head plug on the inlet side of the combination control and
connect a manometer to that tapping.
Turn the manual valve on the apply pressure to the combination control. Note the pressure reading on
the manometer, then turn the valve o. Any loss of pressure indicates a leak. If leak is detected, use a
soap solution to check all threaded connection. If no leak is found, combination control is faulty and
must be replaced before putting appliance back in service.
• Blower Motor: Annual oiling of the blower motor with SAE 20 oil will extend bearing life
signicantly. Ensure that the squirrel cage in the blower is kept clean. If dirt becomes a
problem, installation of outside air intake ducts for combustion is recommended.
Check lubrication instructions on motor. If oiling is required, add three or four drop of SAE 20
electric motor oil.
• After three years or 25,000 hour (for light-duty operation).
• Annually after three years or 8,000 hours (for medium-duty operation).
• Annually after one year or 1,500 hours (for heavy-duty operation).
Never over-oil the motor or premature failure may occur.
NOTICE
34
Page 35
HL2-DS Series
6.0 Maintenance • Routine Maintenance and Inspection
• Heat exchangers: Check the integrity of the heat exchangers. Replace if there are signs of
structural failure. Check for corrosion and/or buildup within the tube exchanger passageways.
• Burner: Check for proper ignition, burner ame and ame sense. Flame should extend directly
outward from burner without oating or lifting.
• Wiring: Check electrical connections for tightness and/or corrosion. Check wires for damage.
• Gas Connection: Inspect the integrity of the gas connection to the heater. Check for leaks,
damage, fatigue or corrosion. Do not operate if repairs are necessary and turn o gas supply to
the heater. Contact service personnel.
• Reector: To maintain eective infrared heating, always keep both sides of the reector clean.
Maintenance can vary signicantly depending on the environment. Dirt and dust can be
vacuumed or wiped with a soap and water solution. Use metal polish if the reectors are severely
dirty.
Contact service personnel if repairs are necessary. Do not operate unit.
Maintenance Log
Date Maintenance Performed Replacement Parts Required
35
Page 36
7.0 Parts • Heater Components and Parts List
HL2-DS Series
7.0 Parts
Figure 7.1 • Burner Assembly
Components
802B
70
1428
828
1018
55A
851B
3252
826
33B
31B
301
68A
886
212
264B
207
31B
219
223
204
1S
17
804B
3072
14
15
16
5
202
9C
10D
205
206
383A
50A
321
221
222
222A
83
84
76
TP-840A, 841A
208A
303B
Chart 7.1 • Parts List
Part No. Description Part No. Description
TP-1S Control Box Cover - Stainless Steel TP-83 24” Stainless Steel Flexible Gas Connector
TP-5 Flange Gasket TP-84 1/2” Female/Male Flare Fitting
TP-9C 3/4” Conduit Coupling and Nut TP-202 16” HSI Burner Tube with Flange
TP-10D
TP-14 Sight Glass Gasket TP-205 Glo-Bar™ Holder
TP-15 Sight Glass TP-206 Glo-Bar™ Holder Spring Clip
TP-16 Sight Glass Washer TP-207 Pressure Switch Mounting Bracket
TP-17
TP-31B
TP-33B 1/2” Shut-O Ball Valve / Inlet Tap TP-219 Di. Vinyl Sensing Tube (Burner)
TP-50A Glo-Bar™ Ignitor TP-221 Glo-Bar™ Holder Gasket
TP-55A Fan Blower TP-222 Flame Rod
TP-65I 36” Interlocking Turbulator Bae TP-222A Flame Rod Wire
TP-68A Strain Relief Bushing TP-223 Gas Manifold
TP-70 Control Box Cover Gasket (per foot**) TP-264B Dierential Pressure Switch
TP-76 Rubber Grommet TP-301 Burner Control Box Center Panel
3” x 3/4” Metal Conduit
Sight Glass Kit
Control Box Mounting Bracket
TP-204 Gas Orice (consult factory)
TP-208A Gas Valve Mounting Bracket
TP-212 1/2” x 3” Pipe Nipple
36
Page 37
HL2-DS Series
Figure 7.2 • Tube and Reector Components
7.0 Parts • Heater Components and Parts List
801
809
880
885
879A
875
884
65I
7079
877
883 811A
881
877
876
809
803
7075
Chart 7.1 • Parts List (cont.)
Part No. Description Part No. Description
TP-303B End Panel, Right - Black TP-876 7’ Unswedged Tube
TP-321 Ignition Plate Gasket TP-877 7’ Swedged Tube
TP-383A Glo-Bar™ Ignitor Plate TP-879A Mounting Bracket Assembly
TP-801 Reector Front Panel TP-880 Burner End Reector
TP-802B End Panel, Left - Black TP-881 U-End Reector
TP-803 Reector U-End Panel TP-883 Exhaust Downturn
TP-804B Burner Control Box Outer Shell - Black TP-884 Service Access Panel
TP-809 Support Bracket TP-885 Mounting Bracket
TP-811A Egg Crate Assembly (4 Per Heater) TP-886 Air Intake Hood with Birdscreen
TP-826 40 VA Transformer TP-1018 Di. Switch Silicone Sensing Tube (Exhaust)
TP-828 Amber Operational Indicator Light TP-1428 Green Operational Indicator Light
TP-840A Two-Stage Natural Gas Valve Assembly TP-3072 Burner (Green)
TP-841A Two-Stage Propane Gas Valve Assembly TP-3252 Wire Harness
TP-851B 35-66 Diagnostic Circuit Board TP-7075 U-Bend
TP-875 5’ Swedged Tube TP-7079 Mounting Bracket Assembly Support (Qty. 2)
37
Page 38
7.0 Maintenance • Limited Warranty Terms and Conditions
HL2-DS Series
Limited Warranty Terms and Conditions
Three-Year Limited Warranty: The heaters covered in this manual are warranted by Detroit Radiant Products Company to the
original user against defects in workmanship or materials under normal use for three years after date of purchase. Any part
which is determined to be defective in material or workmanship and returned to an authorized service location, as Detroit
Radiant Products Company designates, shipping costs prepaid, will be, as the exclusive remedy, repaired or replaced at Detroit
Radiant Products Company’s option. For limited warranty claim procedures, see PROMPT DISPOSITION below. This limited
warranty gives purchasers specic legal rights which vary from jurisdiction to jurisdiction.
Additional Limited Warranty: In addition to the above mentioned three-year warranty, Detroit Radiant Products Company
warrants the original purchaser an additional extension on the heat exchangers and burners. This extension excludes
electrical/purchased components.
General Conditions: The Company will not be responsible for labor charges for the analysis of a defective condition of the
heater or for the installation of replacement parts. The warranties provided herein will not apply if the input of the heater
exceeds the rated input at time of manufacturing or if the heater in the judgment of the Company has been subjected to
misuse, excessive dust, improper conversion, negligence, accident, corrosive atmospheres, excessive thermal shock,
excessive vibration, physical damage to the heater, alterations by unauthorized service personnel, operation contrary to the
Company’s instructions or if the serial number has been altered, defaced, or removed. The Company shall not be liable for any
default or delay in the performance of these warranties caused by contingency beyond its control, including war, government
restriction or restraints, strikes, re, ood, short or reduced supply of raw materials, or parts.
Limitation of Liability: To the extent allowable under applicable law, Detroit Radiant Products Company’s liability for
consequential and incidental damages is expressly disclaimed. Detroit Radiant Products Company’s liability in all events is
limited to and shall not exceed the purchase price paid.
Warranty Disclaimer: Detroit Radiant Products Company has made a diligent eort to provide product information and
illustrate the products in this literature accurately; however, such information and illustrations are for the sole purpose of
identication, and do not express or imply a warranty that the products are merchantable, or t for a particular purpose, or that
the products will necessarily conform to the illustrations or descriptions. Except as provided below, no warranty or armation
of fact, expressed or implied, other than as stated in the “LIMITED WARRANTY” above is made or authorized by Detroit Radiant
Products Company.
Product Suitability: Many jurisdictions have codes and regulations governing sales, construction, installation, and/or use of
products for certain purposes, which may vary from those in neighboring areas. While Detroit Radiant Products Company
attempts to assure that its products comply with as many codes, it cannot guarantee compliance, and cannot be responsible
for how the product is installed or used. Before purchase and use of a product, review the product applications, and all
applicable national and local codes and regulations, and be sure that the product, installation, and use will comply with them.
Certain aspects of disclaimers are not applicable to consumer products:
e.g., (a) some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you: (b) also, some jurisdictions do not allow a limitation on how long an implied
warranty lasts, consequently the above limitation may not apply to you: and (c) by law, during the period of this limited warranty,
any implied warranties of implied merchantability or tness for a particular purpose applicable to consumer products
purchased by consumers, may not be excluded or otherwise disclaimed.
Prompt Disposition: Detroit Radiant Products Company will make a good faith eort for prompt correction or other
adjustment with respect to any product which proves to be defective within limited warranty. For any product believed to be
defective within limited warranty, rst write or call dealer from whom the product was purchased. Dealer will give additional
directions. If unable to resolve satisfactorily, write to Detroit Radiant Products Company at 21400 Hoover Road, Warren,
Michigan 48089, listing dealer’s name, address, date and number of dealer’s invoice, and describe the nature of the defect.
Title and risk of loss pass to buyer on delivery to common carrier. If product was damaged in transit to you, le claim with
carrier.
38
Page 39
HL2-DS Series
Notes
7.0 Maintenance • Notes
39
Page 40
7.0 Parts • Kit Contents Check List
!
!
Kit Contents Check List
Chart 7.2 • Kit Contents for HL2-DS Series
HL2-DS Series Kit Contents
TP-83
1/2” x 24” 304 Stainless Steel
Flexible Gas Connector
HL2DS-HANG*
Hanging Kit
HL2-DS Series
TP-885
Hanging Bracket (x2)
HL2DS-ASSY
Assembly Kit
TP-33B 1/2” Shut-O Valve
(Ball Valve & Inlet Tap)
LIOHL2DS
HL2-DS
Series
Installation,
Operation,
and
Maintenance
Manual
Detroit Radiant Products Company
HL2-DS Series Manual
The HL2-DS Series Infrared Tube Heater is a positive pressure, two-stage radiant heater system. This
manual provides specic information related to the HL2-DS series models. All persons involved with
the installation, operation, and maintenance of the heater system must read and understand the
information in this manual.
For Your Safety
If you smell gas:
• Do not try to light any appliance. • Immediately call your gas supplier from a neighbor’s phone.
• Do not touch any electrical switch. • Follow the gas supplier’s instructions.
• Do not use any phone in your building. • If you cannot reach your gas supplier, call the re department.
INSTALLER: Present this manual to the end user.
Keep these instructions in a clean and dry place for future reference.
Model#: ______________________Serial #: _____________________________
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, injury, or death. Read the installation, operation, and maintenance
instructions thoroughly before installing or servicing this equipment.
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,
re, 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,
hed garages, etc. Installation of a commercial tube heater system in
attac
residential indoor spaces may result in property damage, serious injury,
asphyxiation, or death.
(located on rating label)
Part No. Description Quantity
TP-33B 1/2” Shut-O Valve and Inlet Tap 1
TP-83 1/2” x 24” 304 Stainless Steel Flexible Gas Connector 1
TP-885 Hanging Bracket 2
HL2DS-ASSY
#10 x 1/2” Screw (5), #8 x 1/2” S.S. Self-Tapping Screw (4), 3/8-16 x 3/8” Bolt,
Flat Washer, End Panel Bracket (2)
1
3/8-16 x 3/8” Bolt (6), Flat Washer (6), Split Washer (6), Stainless Steel Bolts
HL2DS-HANG*
(4), Stainless Steel Keps Nuts (4), Stainless Steel S-Hooks (12), Zinc-Plated
1
Turnbuckle (4), #2 Stainless Steel Bulldog Chain (6)
Filled By:
* HL2DS-HANG Kit is not included when optional hanging bracket kit (P/N: DS-BKT20 or DS-BKT33) is ordered.
Approvals
• CSA
• Outdoor Approval
Limited Warranty
• 3 year - Burner box components
• 5 years - Combustion and radiant tubes
• 10 years - Stainless steel burner
• See page 38 for terms and conditions.
LIOHL2DS-Rev. 12917
Print: 1X-08/17 (DRPC)
Phone: (586) 756-0950 Fax: (586) 756-2626
www.detroitradiant.com • sales@drp-co.com
Printed in U. S. A.
© 2018 Detroit Radiant Products Co.
21400 Hoover Road • Warren, MI 48089
40
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