Detroit-radiant-products-company LD3 Series User Manual

WARNING!Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, opera

10LD3 SeriesWARNING!Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury or death. Read and

11LD3 SeriesFactory recommended mounting heights are listed as a guideline. If infrared heaters are mounted too low or too high, they may result in di

WARNING!12LD3 SeriesSuspension of the heater must conform to applicable codes referenced in the Safety section and these instructions.1 Lay all radian

2’ 4”16” Burner Tube10 ft. 4” to 3” O.D. Tapered or 10 Ft. 4” O.D. Titanium Treated Combustion Chamber 3” O.D. Aluminized Steel Radiant Emitter Tube(

14LD3 Series7 S-Hook and #1 Double-Loop Chain5 Prepare mounting surface, if necessary weld blocks, drill holes (see figure 3.3). NOTE: The burn

15LD3 SeriesFor 45 degree hanging angle use two S-hooks and two #1 double-loop chains.For variety of hanging angles, use an optional Brass Knuckle (P

16LD3 SeriesRadiant Tube AssemblyTo install the radiant tubes:1 Place tubes in hangers with the welded seam facing downward and the swaged end of the

17LD3 SeriesOptional Elbow or U-Bend Accessory ConfigurationA 90 degree elbow or 180 degree U-bend accessory fitting may be installed in the radiant tub

* The LV3-5EA-SUB add-on may only be ordered at the time of heater production. 12.5”12.5”90 Degree 4” ElbowP/N: E616”16”6”20”10”20”180 Degree 4” U

19LD3 SeriesBurner Control Box SuspensionSuspending the burner control box must be done in accordance with applicable codes listed in the Safety secti

2LD3 SeriesContents1.0 Introduction ...3 Overview . . . . . . . . . . . . . . .

20LD3 SeriesReflector AssemblyTo install the reflectors (see Figure 3.14):1 Attach the reflector center supports onto radiant tubes. 2 Slide each reflec

Side shield extension (P/N: SSE)Directs infrared rays downward, away from sidewalls and combustibles. Elbow reflector (P/N: RE)Used over a 90-degree el

50,000 BTU/h Models22LD3 SeriesFinal Heater AssemblyChart 3.6 • Tube Installation Sequence and Secured Joints for Reflectors40,000 BTU/h Models3.0 Inst

23LD3 SeriesVentingThe LD3 Series tube heater must be vented as described here to properly direct flue gases from the unit to the outside atmosphere. T

24LD3 SeriesGeneral Venting RequirementsThe venting system for LD3 Series heaters may terminate horizontally through a sidewall or vertically through

25LD3 Series3.0 Installation • General Venting RequirementsFigure 3.16 • General Venting RequirementsWhen possible, avoid venting through an unconditi

26LD3 Series3.0 Installation • Vertical Venting (Category I)Vertical Venting (Category I)An appliance that operates with a non-positive vent static pr

27LD3 Series3.0 Installation • Horizontal Venting (Category III)Figure 3.17 • Rooftop Venting - Side View*Consult the NFPA ANSI Z223.1 Gas Vent Termin

28LD3 Series3.0 Installation • Vent Locations and Clearances • Sidewall Venting RequirementsVent Locations and Clearances:• Category III venting syst

29LD3 Series3.0 Installation • Common Venting (Category I) • Common Rooftop VentingCommon Venting (Category I)The common vent system and all attached

1.0 Introduction3LD3 SeriesOverviewThe intent of this manual is to provide information regarding safety, design guidelines, installation, operation an

30LD3 SeriesCombustion Air RequirementsCombustion air may be supplied to the heater by indoor or outdoor means. Follow these guidelines and all applic

31LD3 SeriesSeparated Combustion Systems (Outside Combustion Air)All LD3 Series heaters come with a factory-installed combustion air adapter for attac

32LD3 Series3.0 Installation • Separated Combustion Systems • Combustion Air SupplyCombustion Air Supply - Room AirCombustion air may be supplied to t

33LD3 SeriesWhen using an unvented configuration (commercial & industrial use only), consider the following: • A factory vent cap/diffuser (P/N

34LD3 Series3.0 Installation • Gas SupplyWARNING!Improperly connected gas lines may result in serious injury and death, explosion, poisonous fumes, to

35LD3 Series3.0 Installation • Gas SupplyIMPORTANT! Before connecting the gas supply to the burner control box: • Verify that the heater’s gas type

36LD3 Series3.0 Installation • Gas SupplyBall Valve w/ 1/8” NPT Inlet TapNEUTRALEARTHHOT- 120V HEATER INPUT -120VG W1 W2 R12”CAUTION!When usin

37LD3 SeriesRefer to Chart 3.7 for natural gas and Chart 3.8 for propane to determine the cubic feet per hour (CFH) required for the type of gas and s

38LD3 SeriesLeak TestingUse a soap solution or equivalent for leak testing. Leak testing solution must be non-corrosive, and be rinsed off immediately

39LD3 SeriesElectrical Requirements and Wiring DiagramsAll field installed wiring to the tube heater must be done in accordance with the national, stat

WARNING!4LD3 Series1.0 Introduction • Safety Signs and Labels Safety Signs and LabelsProduct safety signs or labels should be replaced by the product

40LD3 Series3.0 Installation • Field Wiring Supply Voltage • Thermostat ConnectionField Wiring Supply VoltageBefore proceeding with electrical connect

41LD3 Series3.0 Installation • Thermostat ConnectionThe thermostat terminal designations are as follows:R: 24VAC PowerW1: Call for Heat - Low FireW2:

42LD3 Series3.0 Installation • Unit Start-up (Commissioning) • Pre-Start Up ChecksUnit Start-up (Commissioning)Pre-Start Up ChecksVerify that the inst

43LD3 SeriesVerify Proper Inlet PressureBefore starting up the unit, smell all around the heater for gas. Be sure to smell next to the floor because so

44LD3 Series3.0 Installation • Verifying Manifold Pressure14 Replace the inlet pressure tap plug on the gas control valve.15 Leak check the re-instal

45LD3 Series9 After five minutes, observe the pressure rating on the pressure gauge. The target manifold gas supply pressure for:• Natural gas is 3.5

46LD3 SeriesHigh Altitude OperationHigh altitude operation of this tube heater is approved, without modification, for elevations up to 6,000 feet (1,82

47LD3 Series4.0 Operation • Operating Instructions4.0 OperationWARNING!BEFORE OPERATING, smell all around the appliance area for gas. Be sure to smel

48LD3 SeriesSequence of Operation Standby: The ignition module (circuit board)continually checks for internal faults, circuit integrity and relay cont

49LD3 SeriesFigure 4.1 • Operational Indicator LightsLight 3 Indicates High Fire OperationLight 1Indicates Pressure Switch ClosesOperational Indicator

5LD3 SeriesSERVICE ACCESS PANEL1.0 Introduction • Safety Signs and LabelsSERVICE ACCESS PANELIGNITER & FLAME SENSE COMPARTMENT 1. Disconnect gas &

50LD3 Series5.0 Maintenance • Troubleshooting GuideYesContinued on page 525.0 MaintenanceDoes the heater have 120 VAC at the main power connection?Tur

51LD3 Series5.0 Maintenance • Troubleshooting GuideBypassing any switch is intended for testing purposes only. Do not leave switch bypassed during no

52LD3 SeriesDoes the burner light?Is the gas supply valve to the heater in the ‘ON’ position?Were the gas lines purged of air?Continued from page 505.

53LD3 Series5.0 Maintenance • Troubleshooting GuideCheck to make sure gas pressure is within minimum and maximum inputs, as indicated on the heater’s

54LD3 SeriesFigure 5.1 • Burner Assembly Components5.0 Maintenance • Heater Components and Parts ListFigure 5.2 • Tube & Reflector Components21B151

55LD3 Series5.0 Maintenance • Heater Components and Parts ListChart 5.1 • Tube & Reflector ComponentsPart No. Description Part No. DescriptionTP-5

56LD3 Series5.0 Maintenance • Routine InspectionWARNING!Personal injury or death may result if maintenance is not performed by properly trained gas in

57LD3 Series• Vent pipe system: Check the outside termination and the connections at the heater. Inspect the vent exhausts for leakage, damage, fatig

58LD3 Series5.0 Maintenance • Limited WarrantyLimited Warranty Terms and ConditionsOne-Year Limited Warranty. Radiant Tube Heaters covered in this man

59LD3 SeriesNotes5.0 Maintenance

6LD3 SeriesWarning SymbolsSafety is the most important consideration during installation, operation and maintenance of the tube heater. You will see t

60LD3 Series5.0 Maintenance • Kit Contents Check ListKit Contents Check ListChart 5.2 • Kit Contents for LD3 Series - Reference the column for your mo

Standards, Certifications and Government RegulationsInstallation of this tube heater must conform with all applicable local, state and national specific

Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or clothing ignition.Young child

Model NumberMounting Angle*SidesFront Behind Top Below40,000 BTU/h MODELSLD3 (15, 20) - 40 [N, P]0° 15 15 6 4545° 58 8 10 45 with 1 side shield 0° 4