Space-Ray LRDL15 Assembly, Installation And Operation Instructions
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Space-Ray LRDL15 Assembly, Installation And Operation Instructions

Overhead radiant tube heaters
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INSTALLATION AND OPERATION INSTRUCTIONS
OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and understood before
installing, operating or servicing this heater. This heater is intended for use with either Natural Gas or Propane
Gas. It must be installed by a qualified service person or a licensed contractor in accordance with state and local
codes.
▲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. For assistance or additional information, consult a qualified installer, service agency or
the gas supplier.
INSPECT all combustion air openings into the building and, if necessary, clear if they become blocked.
FOR YOUR SAFETY: If the heater is installed without a flue, exhaust fans MUST be operating on an appropriate
cycle when heaters are operating to avoid a high concentration of carbon monoxide. When used without fresh
air, this heater may give off carbon monoxide, an odorless and poisonous gas. CARBON MONOXIDE POISONING
MAY LEAD TO DEATH. Early signs of carbon monoxide poisoning resemble the flue with headaches, dizziness and
nausea. If you experience these signs, GET FRESH AIR IMMEDIATELY! Have the heaters serviced as soon as
possible and check the ventilation into the building.
!INSTALLER: This manual is the property of the owner. Please present this manual to the owner when you leave
the job site.
IF YOU SMELL GAS:
! DO NOT try to light any appliance.
! DO NOT touch any electrical switch; DO NOT use any
telephone in your building.
! IMMEDIATELY call your gas supplier from a neighbor's
telephone. Follow the gas supplier's instructions. If you
cannot reach your gas supplier, call the fire department.
!IMPORTANT: SAVE THIS MANUAL FOR FUTURE REFERENCE.
Phone 01473 830551 Fax: 01473 832055 E-mail:
Double Linear
OVERHEAD RADIANT TUBE HEATERS
Models:
LRDL15, LRDL25, LRDL30, LRDL35, LRDL40, LRDL45
Single Stage Pull Through System (Negative Pressure)
FOR YOUR SAFETY
Gas Fired Products (UK) Ltd.
Chapel Lane, Claydon, Ipswich, Suffolk IP6 0JL, England
DO NOT store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
info@spaceray.co.uk www.spaceray.com.uk
Form #44201117
Dec 2021

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Summary of Contents for Space-Ray LRDL15

  • Page 1 Double Linear OVERHEAD RADIANT TUBE HEATERS Models: LRDL15, LRDL25, LRDL30, LRDL35, LRDL40, LRDL45 Single Stage Pull Through System (Negative Pressure) OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and understood before installing, operating or servicing this heater. This heater is intended for use with either Natural Gas or Propane Gas.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SECTION DESCRIPTION PAGE 1.0) SAFETY ..............................2 2.0) INSTALLER RESPONSIBILITY ......................2 3.0) GENERAL INFORMATION ........................2 4.0) MINIMUM CLEARANCES TO COMBUSTIBLES ................. 4 5.0) SPECIFICATIONS ..........................5 6.0) PACKING LIST ............................. 7 7.0) DIMENSIONS – LINEAR TUBE CONFIGURATIONS ................9 7.1) HEATER ASSEMBLY OVERVIEW - LINEAR TUBE CONFIGURATIONS .........

  • Page 3: Safety

    1.0) SAFETY This heater is a self-contained infrared radiant tube heater. Safety information required during installation and operation of this heater is provided in this manual and the labels on the product. The installation, service and maintenance of this heater must be performed by a contractor qualified in the installation and service of gas fired heating equipment.
  • Page 4 Although these heaters may be used in many applications other than space heating (e.g., process heating), Space-Ray will not recognize the warranty for any use other than space heating. This heater is not an explosion proof heater. Where the possibility of exposure to volatile and low flash point materials exists, it could result in property damage or death.

  • Page 5: Minimum Clearances To Combustibles

    NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height to maintain the required clearances from the heater to combustibles.” Space-Ray recommends posting these signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.

  • Page 6: Specifications

    PN 4260360Z PN 4260360Z Fan Air Restrictor Plate PN 4260361C PN 4260361C Electrical Supply 230V~50Hz 125W Fuse Externally Dimensions LRDL15: 10.763m x 0.34m Weight LRDL15: 31kg Gas Connection R - ½ Flue Size Ø150mm Note: Ø125 mm (5”) allowable Table 3...
  • Page 7 Table 5 MODEL LRDL35-N LRDL35-L Heat Input 2 x 34.5 kW Hs 31.1 kW Hi Appliance Type (II A2, B 2H3P Appliance Category 2H3P Adjusted for 2H G20 20mbar 3P G31 37mbar Setting Pressure 12.5mbar 25mbar Injector No. 15 Ø3.1mm Burner Baffle Plate PN 42760360E PN 42760360E...

  • Page 8: Packing List

    Reflector Panel (3035 long) 43319050 Reflector Panel (1511 long) 43320000 Reflector End Panel 44152248 Turbulator (65mm x 572mm) 44534030 Tee Section - (Ø 76.2) 42679279 Hanger Clamp - (Ø 76.2) 02326010 M10 Eyebolt LRDL15, 25 Fig. 3 Form #44201117 Dec 2021...
  • Page 9 LRDL30/35 LRDL40/45 The appliances are supplied as follows:- Table 10 PART NO. MODEL LRDL30 LRDL35 LRDL40 LRDL45 Carton (containing the following) Fastenings Pack Burner Box Assembly 44438530 Fan – #DSA-524-202 – (Ø 101.6) 44438540 Fan – #DSA-524-202 – (Ø 101.6) 44438270 Fan - #DSA-524-202 - (Ø...

  • Page 10: Dimensions - Linear Tube Configurations

    7.0) DIMENSIONS – LINEAR TUBE CONFIGURATIONS Fig. 5 Form #44201117 Dec 2021...
  • Page 11 Fig. 5a LRDL30/35/40/45 with OPTIONAL 3m EXTENSION Form #44201117 -10- Dec 2021...

  • Page 12: Heater Assembly Overview - Linear Tube Configurations

    7.1) HEATER ASSEMBLY OVERVIEW - LINEAR TUBE CONFIGURATIONS Fig. 6 Form #44201117 Dec 2021 -11-...
  • Page 13 Fig. 6a Form #44201117 -12- Dec 2021...
  • Page 14 Fig. 7 Form #44201117 Dec 2021 -13-...
  • Page 15 Fig. 7a Form #44201117 -14- Dec 2021...
  • Page 16 Fig. 8 Form #44201117 Dec 2021 -15-...
  • Page 17 Fig. 8a Form #44201117 -16- Dec 2021...

  • Page 18: Typical Suspension Methods

    The appliance should be located with respect to building construction and other equipment to permit access to the appliance for servicing etc. Space-Ray recommends that the body sections be suspended using chains with turnbuckles. This will allow slight adjustments after assembly and heater expansion/ contraction during operation.

  • Page 19: Burner Box Support Details

    Fig. 9 8.1) BURNER BOX SUPPORT DETAILS The burner box must be supported with welded chain (Ø 3mm x 65 links per m) or Ø 8mm min mild steel drop rods and suitable brackets after overall heater suspension is complete. This is to prevent burner from sagging which may cause the tube to burn out.

  • Page 20: Fan Support Details

    8.2) FAN SUPPORT DETAILS The fan assembly must be supported with suitable welded chain chain (Ø 3mm x 65 links per m) or Ø 8mm min mild steel drop rods and suitable brackets after overall heater suspension is complete. Attach the tube hanger clamp (split ring) to the branch outlet of the tee section as shown. Attach the chains or drop rods to the M10 eyebolt of the tube hanger clamp.
  • Page 21 See heater dimensions and assembly overview (Sections 7 ) for each Linear model configurations. During field assembly of the heater body sections, the recommended procedure is as follows: 1. Determine the actual layout of the system first before hanging heater sections. Consideration must also be taken for flue pipe, fresh air ducting, gas piping, clearances to combustibles, etc.

  • Page 22: Tube Coupling Details

    9.1) TUBE COUPLING DETAILS Join the tube sections together and secure with tube couplings as described below. Note: The heater tube section should be provided a slope of 0.25 degree up to the fan. 1. Place the compression coupling over the end of the tube. 2.

  • Page 23: Inserting Turbulators

    8. Check to ensure that the hardware is completely closed and the band is seated on the reaction block and interference pins as illustrated above. Once all the heater body sections are attached, make sure that the heater system is sloped up to the fan. If it is not, slight adjustments can be made using the turnbuckles.
  • Page 24 Fig. 14 Table 11 Linear Model Heaters MODEL Turbulator Sections Fan End LRDL 15 65mm x 572mm LRDL 25 65mm x 572mm LRDL 30 90mm x 610mm LRDL 35 90mm x 610mm 90mm x 610mm LRDL 40 90mm x 610mm LRDL 45 Form #44201117 Dec 2021...

  • Page 25: Attaching Burner Box Assembly

    9.3) ATTACHING BURNER BOX ASSEMBLY Fig. 15 Fig. 16 Place a Torctite Coupling over the end of the Radiant Tube (refer to Section 9.1 “Tube Coupling Details”). Assemble the Burner Box to the Radiant Tube ensuring that it engages fully into the Torctite Coupling and is positioned vertically.

  • Page 26: Attaching Fan Assembly

    9.4) ATTACHING FAN ASSEMBLY Fig. 17 Place a Torctite Coupling over each end of the Radiant Tubes and the ends of the Tee Section. (refer to Section 9.1 “Tube Coupling Details”). Assemble the Fan Assembly to the Tee Section outlet and position the fan outlet pointing upwards for flueless applications.

  • Page 27: Gas Connections And Regulations

    10.0) GAS CONNECTIONS AND REGULATIONS IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER Connect to the supply tank or manifold in accordance with state or local building codes. Authorities having jurisdiction should be consulted before the installation is made. Check that the gas fuel on the burner rating plate matches the fuel for the application. Check that the gas supply piping has the capacity for the total gas consumption of the heaters and any other equipment connected to the line.
  • Page 28 Fig. 19 Fig. 20 Fig. 21 Radiant tube heaters will expand and contract during operation. Therefore it is essential to provide a flexible metallic hose, which must conform, to national or Local Regulations, to connect the appliance to the gas supply. Minimum size to be ½" (12.7mm x 1m long) bore. The gas pipe, flexible hose and connections must be self-supporting.

  • Page 29: Instructions For Pressure Test Gauge Connection

    11.0) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION CHECKING GAS PRESSURES Switch off the gas and electricity and gas supply to the appliance. NOTE: Turn off manual shutoff at gas line otherwise gas comes out. Connect a manometer to the test nipple protruding from the rear panel of the Control Box (adjacent to the Air Inlet Adaptor).
  • Page 30 2. After testing pressure and adjusting the regulator, turn off all electrical power to the system, remove manometer tubes, turn OUTLET test screw clockwise to seal pressure port. Tighten to 1.0 Nm torque minimum. Turn on system power. Fig. 22a Fig.

  • Page 31: Electrical Connections

    12.0) ELECTRICAL CONNECTIONS The electrical wiring to this heater must be installed in accordance with the latest or current National Regulations and any Local Regulations, which apply. Electrical supply 230V~50Hz 230W Current rating 1.1A Fuse externally The two Control Boxes are operated from the same switching power as indicated in Figure 24 and 25. The Fan is operated from one of the two burners Fan outlet connections.
  • Page 32 Multiple Heaters per Thermostat connection diagram Fig. 25 Notes: The method of connection to the electrical supply must facilitate complete isolation and should preferably be via a fused double pole isolator having a constant separation of at least 3mm in all poles and supplying the appliance ONLY.

  • Page 33: Venting And Fresh Air For Combustion

    13.0) VENTING AND FRESH AIR FOR COMBUSTION These appliances may be installed with an exhaust flue fitted or without an exhaust flue fitted. A. FLUELESS (UNFLUED) The installation room should have a volume of at least 10m kW of installed nominal heat input of the radiant heater.
  • Page 34 VENTILATION BY NATURAL AIR CHANGE Gas-fired radiant heaters may be operated without any special exhaust system if the exhaust gases are discharged to the outside atmosphere by a sufficient natural air change in the installation room. Furthermore, no provision for thermal or mechanical ventilation is required in the following particular cases: Buildings with natural air change greater than 1.5 volumes per hour Buildings with a density of operating heat input not greater than 5W/m AIR SUPPLY...
  • Page 35 Fig. 27 13.1 Type A Outside (ducted) combustion air supply. When installed in a dusty or polluted atmosphere, the heater should be fitted with a ducted supply of clean fresh air. A length of 100mm flexible ducting should be installed between the Control Box Air Inlet and any rigid ducting and be secured to the Air Inlet with hose clips.

  • Page 36: Heater Operation

    14.0) HEATER OPERATION 14.1) SEQUENCE OF OPERATION The chart below shows the sequence of operation for the normal operating cycle. Fig. 29 If the flame is not sensed during sequence T3 then the heater will go to lockout. It is essential that all new pipework installations are purged and tested for soundness with a suitable leak detection fluid prior to attempting to ignite any appliance.

  • Page 37: Cleaning And Annual Maintenance

    If the appliance fails to ignite after a second sequence switch off the electrical supply to the appliance and call the service engineer. If gas failure occurs after successful ignition the appliance will attempt one re-ignition before going to lockout condition. To shut down the appliance for short periods of time, switch off the electricity supply to the appliance.
  • Page 38 • Gas lines: Make sure that the gas lines are not leaking. Check the gas connection to the heater for any signs of damage, fatigue or corrosion. If there are any signs of damage to the gas connection or leaks found in the gas piping, immediately stop using the heater until the gas pipe and connections have been repaired or replaced.

  • Page 39: Troubleshooting Guide

    16.0) TROUBLESHOOTING GUIDE Form #44201117 -38- Dec 2021...
  • Page 40 Form #44201117 Dec 2021 -39-...

  • Page 41: Replacing Parts

    17.0) REPLACING PARTS Only use genuine Space-Ray replacement parts. Parts are available from the factory for replacement by a qualified contractor. Refer to the Replacement Parts Guide in Section 20.0) for all replacement parts. IMPORTANT: Disconnect gas and electricity supplies to the appliance before carrying out any repair work. This work can be carried out at high level using a purposes designed access tower, but it is preferable that this work should be carried out at ground level.

  • Page 42: Removing Main Burner

    17.2) REMOVING MAIN BURNER Fig. 31 1. Unscrew the two M4 x 25 setscrews from the Burner Bracket and remove the Burner Clamp. 2. Unscrew the Burner from the Injector Fitting 3. Lift the burner out of the Control Box. 4.

  • Page 43: Removing Ignition Control

    17.4) REMOVING IGNITION CONTROL Fig. 33 1. Remove the screws securing the cover panel to the Ignition Control Module. 2. Disconnect the 12 way Molex electrical connector and the white HT ignition spark/flame sensor lead from the Ignition Control. 3. Slide out the Ignition Control. 17.5) REMOVING AIR SWITCH Fig.

  • Page 44: Removing Gas Valve And Manifold Assembly

    17.6) REMOVING GAS VALVE AND MANIFOLD ASSEMBLY Fig. 35 1. Remove the screws securing the cover panel to the Ignition Control Module and disconnect the 12 way Molex electrical connector. 2. Disconnect the white HT ignition spark/flame sensor lead from the ignition module. 3.

  • Page 45: Removing Air Inlet Plate

    17.8) REMOVING AIR INLET PLATE Fig. 37 1. Disconnect tubing from both brass pressure test fittings. 2. Remove brass nut from pressure test fitting. 3. Disassemble components from the control box. 17.9) REMOVING THE FAN Fig. 38 1. Disconnect the electrical wires from the fan (see Section 12.0) for connection details. 2.

  • Page 46: Conversion Instructions

    18.0) CONVERSION INSTRUCTIONS CONVERSION FROM CAT. 2H (Natural Gas) TO CAT. 3P (LPG) Remove the Injector from the Injector Fitting (see Section 17.3) and replace it with the alternative Injector supplied with conversion kit. Check that the size reference marked on the Injector agrees with that listed in the Specifications table (Section 5.0) for the appliance model in question.

  • Page 47: Replacement Parts Guide

    20.0) REPLACEMENT PARTS GUIDE The following is a list of replacement parts which may be required during the life of the appliance. CONTROL COMPONENTS Description Item No. Part No. Qty. 02330010 Vinyl Cap 02331010 Plug, Liquid Tight Hole Inlet – Male Pin #PX0575 4262151 Outlet –...
  • Page 48 Part No. Qty. 4262036 Label Neon 4262035 Label, Fan/Power Supply 42604200 Label, Warning - GB/IE 43344120GB Label, Clearances to Combustibles 42848130GB Label, Nameplate 4260440 Label, Operating Instructions - GB 4262000 Label, Space-Ray Logo 44201117 Installation/Operation Manual Form #44201117 Dec 2021 -47-...
  • Page 49 Fan Assembly Part No. LRDL15 Fan Assembly – Models LRDL15 44438050 Description Qty. Item No. Part No. 30742150 Fan – Torin #DSF133-042 4260132 Gasket (130 BC) 4260361C Air Orifice Plate – 50.8mm ID (130 BC) 4250649 3" Connector (130 BC) with 3 air holes...
  • Page 50 Fan Assembly Part No. LRDL40 LRDL45 44438270 44438260 Fan Assembly – Models LRDL40, 45 Description Item No. Part No. Qty. Qty. Fan – Torin #DSA-524-202 30742200 4260516 Gasket (146.1 BC) 42603618G Air Orifice Plate - 66.7mm ID (146.1 BC) 4260505 4"...

  • Page 51: End Of Life Disposal Of This Appliance

    21.0) END OF LIFE DISPOSAL OF THIS APPLIANCE This product contains steel, aluminum and electronics and should be recycled at the end of its life cycle to save these materials. Please dispose of this equipment at your applicable collection point for the recycling of metals and electronic equipment waste.

This manual is also suitable for:

Lrdl25Lrdl30Lrdl35Lrdl40Lrdl45

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