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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.

Model 

Number

Gas Type 

(select 

one)

BTU/H 

(High 

Fire)

BTU/H 

(Low 

Fire)

Length

Unit 

Weight 

(lbs.)

Recommended 

Mounting 

Height*

Radiant 

Surface 

Area (sq. 

ft.)

36” 

Baffle 

Sections

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

Specifications

Chart 1.1

 •

 HL2-DS Specifications

3

HL2-DS 

Series

1.0

 Introduction

 

 Overview 

 Heater Components 

 Specifications

*  Typical or recommended mounting heights are provided as a guideline. Actual conditions may dictate 

variations from this data.

Summary of Contents for HL2-DS-30-65

Page 1: ...a commercial tube heater system in residential indoor spaces may result in property damage serious injury asphyxiation or death TheHL2 DSSeriesInfraredTubeHeaterisapositivepressure two stageradianthea...

Page 2: ...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 Electrica...

Page 3: ...ded 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 content...

Page 4: ...co com parts Serial No 0914XXXXXXXXXX 0001 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 Diag...

Page 5: ...codes and regulations Post this tag adjacent to the heater s thermostat or controls before operating the heater INSTALLER READ AND POST THIS NOTICE LL001 XM 07 18 CDS This product can expose you to ch...

Page 6: ...ath or injury 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...

Page 7: ...ional Fuel Gas Code ANSI Z223 1 NFPA 54 Copies of the Standards can be viewed or purchased at www nfpa org Not For Use in Indoor Living Spaces Installing this unit in residential indoor living spaces...

Page 8: ...upply Clearances to Combustibles 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 b...

Page 9: ...e 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 responsibilit...

Page 10: ...ning 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 sp...

Page 11: ...ounting heights Chart 3 1 Recommended Mounting Heights and Coverages for HL2 DS Series Heaters Figure 3 2 Mounting Height Dimensions see Chart 3 1 for dimensions Max Input BTU h Typical or Recommended...

Page 12: ...he burner box and place the empty carton at the burner end of the first tube and reflector assembly 3 Disconnect the pressure switch hose Glo Bar connector and electrode wire from their respective con...

Page 13: ...her The exhaust end reflector will slightly overlap the burner end reflector The tube and reflector assemblies are in the correct position when the reflector screw holes are aligned see Fig 3 7 7 Remo...

Page 14: ...w in each 9 Using the four 4 screws provided and a nut driver attach the reflectors together so that the screws are hand tight Do not overtighten as this will not allow for the expansion and contracti...

Page 15: ...Hanging Chain Bracket 3 0 Installation Heater Assembly Instructions Insert the bolt in the nutsert and secure see Fig 3 8 With one person positioned at each end of the heater carefully flip the unit o...

Page 16: ...referenced in the Safety section and these instructions 1 Mark locations for hanging points 2 Prepare mounting surface If necessary weld blocks and drill holes 3 Fasten beam clamp screw hook or other...

Page 17: ...o add additional support structures at the ceiling level for the connection of these side suspensions Apply longitudinal forward backward bracing field supplied at each reflector hanging bracket The d...

Page 18: ...e 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 simultaneou...

Page 19: ...e absence of local codes with the latest edition of the National Fuel Gas Code NFPA 54 CAUTION NOTICE The total input to the appliance must fall within 5 of the rated input as indicated on the rating...

Page 20: ...he 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 metal...

Page 21: ...the pipe threads require sealing compounds 4 Form the 1 2 x 24 stainless steel flexible gas connector into a smooth C shape allowing approximately 12 inches between the flexible connector s end nuts s...

Page 22: ...High 3 5 5 0 14 0 76 2 52 000 Low 1 7 49 5 HL2 DS 30 100 100 000 High 3 5 5 0 14 0 95 2 65 000 Low 1 8 61 9 Chart 3 3 Propane Gas Consumption Assumes an average heating value of 1050 BTU SCF and a Spe...

Page 23: ...eet 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...

Page 24: ...PSI Before leak testing close the field installed manual shut off valve shown on Figure 3 14 on the supply line to isolate the gas valve from the pressure NOTE All factory installed gas connections ha...

Page 25: ...st 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 field connections Internal Wiring Di...

Page 26: ...et 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...

Page 27: ...OPTIONAL 24V COMMON CHECK THERMOSTAT INSTRUCTIONS TO SEE IF NEEDED 24V 120V G W B G W B G W B Field Wiring 1 When controlling multiple heaters with a single control device one ERK or ERK HE per heater...

Page 28: ...oceeding to soft lockout Low Fire Running Circuit After ignition the flame rod monitors burner flame If sense of flame is lost the control closes the gas valve within one second and a new trial sequen...

Page 29: ...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 flame sense etc the heater will enter a Soft Lockout period f...

Page 30: ...should be replaced or repaired Find source of electrical problem between the external transformer and thermostat Is there 24 V on the secondary side of the external transformer Is there 24 V to the t...

Page 31: ...ust be replaced Repair wiring between power in and transformer The fan is faulty and must be replaced The internal transformer is faulty and must be replaced Is the power across the TH terminal and gr...

Page 32: ...rating plate Is gas pressure OK Does the burner stay on for approx 8 seconds and then shut off Does the burner come on and turn off immediately 1 or 2 seconds Check to make sure gas pressure is withi...

Page 33: ...f 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 fire mode and the troubles...

Page 34: ...damage from fire 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 off gas supply to...

Page 35: ...ty of the gas connection to the heater Check for leaks damage fatigue or corrosion Do not operate if repairs are necessary and turn off gas supply to the heater Contact service personnel Reflector To...

Page 36: ...TP 10D 3 x 3 4 Metal Conduit TP 204 Gas Orifice consult factory 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 Press...

Page 37: ...l 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 Transform...

Page 38: ...ts Company has made a diligent effort to provide product information and illustrate the products in this literature accurately however such information and illustrations are for the sole purpose of id...

Page 39: ...39 HL2 DS Series 7 0 Maintenance Notes Notes...

Page 40: ...igns 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 thermo...

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