Space-Ray LTU40-L5, Installation And Operation Instructions Manual

Page 1: ...trical switch DO NOT DO NOT DO NOT DO NOT use any telephone in your building IMMEDIATELY IMMEDIATELY IMMEDIATELY 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 DO NOT DO NOT DO NOT DO NOT store or use gasoline or other store or use gasoline or other store or use gasoline or other s...

Page 2: ... and Shutdown Instructions 25 17 0 Sequence of Operation 25 18 0 Control Component Location 26 19 0 Cleaning And Annual Maintenance 27 20 0 Troubleshooting Guide 28 21 0 Replacing Parts 31 21 1 Removal of Spark Electrode 31 21 2 Removing main burner and Gas Valve 32 21 3 Air Switch Pressure Check 32 21 4 Ignition System Checks 33 21 5 Motor And Blower Wheel Check 34 22 0 Installation Data 34 23 0 ...

Page 3: ...uipment Do not hang anything from the heater Supply all installation materials necessary that are not included with the heater Check the nameplate to make sure that the burner is correct for the gas type in the building and the installation altitude 3 0 GENERAL INFORMATION This heater is a self contained infrared radiant tube heater for use in locations where flammable gases or vapors are not gene...

Page 4: ...sidential dwel r use in residential dwel r use in residential dwellings lings lings lings This heater is for Indoor Installation and Covered Patio Installation only and can be used in either Vented or Unvented mode The term Unvented actually means Indirect Vented While the products of combustion are expelled into the building national codes require ventilation in the building to dilute these produ...

Page 5: ... are posted on the c c c control box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materia...

Page 6: ...Current Current Rating Rating Rating Rating Natural or Propane MPT Male 3 4 Round 4 Round 120 Volt 60Hz 1 Phase 2 6 Amp Fuse Fuse Fuse Fuse Rating Rating Rating Rating Ignition System direct sp Ignition System direct sp Ignition System direct sp Ignition System direct spark ark ark ark Spark Module 2 Amp 250V for 24V Circuit 30 second pre purge period 6 0 PACKING LIST A A A A Control Draft Inducer...

Page 7: ...19cm 3 3 4 10cm 3 1 2 9cm 6 15cm Bird Screen Side View Front View 7 0 DIMENSIONS LTU 40 75 30 SERIES 15 38cm 5 1 2 14cm 202 513cm 88 224cm 11 1 2 29cm 82 208cm 5 1 4 13cm 18 1 2 47cm 7 1 2 19cm Side View Bottom View Tube Support Hanger Bracket QTY 3 Emitter Tube Reflector 15 FT Body Section Plastic Vacuum Air Tube 1 4 O D Tube Strain Relief Bushing Motor Leads Sight Glass 1 2 MPT Gas Connection 8 ...

Page 8: ...nger bracket U bolt clamp 5 16 Hex nuts 3 OD x 15 tube Mounting flange 12 radial holes Mounting flange 12 radial holes U bend Suspension chain with turnbuckle Reflector foot end 5 1 2 88 82 11 1 2 Reflector control end Reflector Typical overlap 3 control box to reflector control box to chain Suspension chain Control box reflector 3 5 1 2 Side View ...

Page 9: ...vide sufficient lengths or swing joints to compensate for expansion See Figures b and c 5 Heaters subject to vibration must be provided with vibration isolating hangers 6 Heaters must not be supported by gas or electric supply lines and must be suspended from a permanent structure with adequate load capacity Space Ray recommends that the tube sections be suspended using chains with turnbuckles Thi...

Page 10: ...e at the flange end the slide tube support hanger bracket between marks on tubes and tighten the U bolt hex nuts Follow instructions in Section 10 1 for the field assembly of the heater 88 reference Remove end reflectors from packaging Slide tube support hanger bracket between marks on tubes and tighten the U bolt hex nuts 1 2 Lift this end 6 reference 82 reference ...

Page 11: ... the control box end 88 82 Suspension Chain 18 1 2 18 1 2 18 1 2 1 Trapeze Method Trapeze Method Trapeze Method Trapeze Method Individual Suspension Method Individual Suspension Method Individual Suspension Method Individual Suspension Method 2 Lift the tube section and suspend it into place When lifting caution should be used to avoid damaging the assembly Make sure that the long axis of heater i...

Page 12: ...with 1 4 20 locknuts The control box must be mounted with the perforated fresh air plate on top facing the ceiling 6 Attach the draft inducer assembly to the left hand draft inducer tube flange and secure with 1 4 20 locknuts A flue restrictor plate is attached to the draft inducer weld studs DO NOT DISCARD RESTRICTOR PLATE DO NOT DISCARD RESTRICTOR PLATE DO NOT DISCARD RESTRICTOR PLATE DO NOT DIS...

Page 13: ... clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to slide under the clamp during hea slide under the clamp during hea slide under the clamp during hea slide under the clamp during heater operation ter operation ter operation te...

Page 14: ...k that the gas fuel on the burner rating plate matches the fuel for the application 3 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 4 Check that the calculated supply pressure with all gas appliances and heaters operating will not drop below the minimum supply pressure required for these heaters Check in...

Page 15: ...on a tubular type infrared heater per the standard for Connectors A gas connector certified for use on a tubular type infrared heater per the standard for Connectors for Gas Appliances ANSI Z21 24 CSA 6 10 is supplied for installation in US only The gas connector is 36 long for Gas Appliances ANSI Z21 24 CSA 6 10 is supplied for installation in US only The gas connector is 36 long for Gas Applianc...

Page 16: ...d should not require adjustment The combination gas valve is factory set and should not require adjustment If full rate adjustment is required remove the cover screw Using a small screwdriver turn the adjustment screw clockwise to increase or counterclockwise to decrease the gas pressure to the burner Replace the cover screw NOTE NOTE NOTE NOTE The step opening pressure of this gas valve is not ad...

Page 17: ...ently live electrical circuit one that is not controlled by a light switch 4 The power supply to the unit should be protected with a fused disconnect switch or circuit breaker A service switch as required by local codes shall be located in the vicinity of the heater check local codes for allowable distances and should be identified as Heater Service Switch All electrical wiring must be located in ...

Page 18: ... pressostat Robinet à gaz Écartement d électrode 4 7Êmm Haute tension Armoire de commande Moteur d amorce d aspiration S il faut remplacer un fil de l appareil d origine utiliser exclusivement des fils à température de service nominale d au moins 105C 18 AWG UL CSA 600ÊV Type TEW Pour raccorder le circuit d alimentation au radiateur utiliser des fils de calibre 14 AWG ou plus à température de serv...

Page 19: ... HEATER PER THERMOSTAT WIRE LEGEND ENGLISH FRANCAIS BK BLACK NOIR W WHITE BLANC R RED ROUGE BL BLUE BLEU G GREEN VERT V VIOLET VIOLET A AMBER AMBRE 42706990 Rev D 1 2012 If any of the original wire as supplied with the appliance must be replaced It must be replaced with wiring material having a temperature rating of at least 105oC 18 AWG UL CSA 600V Type TEW When connecting the supply circuit to t...

Page 20: ...g the supply circuit to the heater wiring material having a minimum size of 14 AWG and a temperature rating of at least 90ºC shall be used 3 A replaceable 2 amp fuse 1 1 4 long is located inside the control box D D D D L L L LOW OW OW OW VOLTAGE VOLTAGE VOLTAGE VOLTAGE 24 24 24 24V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS MULTIPLE HEATERS MU...

Page 21: ...m the heater Subtract 15 ft for each elbow within 15 ft of the heater 4 Joints between sections of piping shall be fastened by sheet metal screws or other approved means and should be sealed to prevent leakage of flue gas into building Aluminum or Teflon tape suitable for 550ºF 3M Company tapes 433 or 363 or silicone sealant is recommended 5 Avoid locating elbows in the first 5 of vent pipe whenev...

Page 22: ...izontal vent pipe shall rise not less than 1 4 inch per foot from the start of the vent system to the vent terminal The heater must be installed level All portions of the vent pipe shall be supported to prevent sagging 6 spacing is recommended 4 A minimum clearance of 6 inches must be maintained between the outside wall and vent cap 18 clearance will provide stability under high wind conditions 5 ...

Page 23: ...al codes All common vent pipe should be insulated flue pipe or double wall Type B vent 3 Avoid unnecessary bends Limit to two 2 90º elbows 4 The entire length of vent connector shall be readily accessible for inspection cleaning and replacement 5 Groups of heaters with a common vent must be controlled by a common thermostat If any heater connected to a common vent system for multiple If any heater...

Page 24: ...Venting Multiple Heater Venting Multiple Heater Venting Multiple Heater Venting Number of Heaters Number of Heaters Number of Heaters Number of Heaters 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 LTU 40 4 4 5 5 6 LTU 50 4 4 5 5 6 LTU 60 4 5 6 6 7 LTU 75 4 5 6 6 7 COMMON VENT DIAMETER COMMON VENT DIAMETER COMMON VENT DIAMETER COMMON VENT DIAMETER If a size is not available use the next larger size THE ...

Page 25: ...he perforated fresh air plate must be maintained at all times In larger open areas of buildings infiltration normally is adequate to provide air for combustion 15 1 DIRECT OUTSIDE AIR FOR COMBUSTION Outside combustion air should be supplied directly to the heater when the building is subject to negative pressure or when contaminants or high humidity are present in the building air These contaminan...

Page 26: ...ng Table ing Table and use the diameter indicated based on the number of heaters per duct Flue vent termination must be 1 ft 30cm higher than combustion air inlet cap Perforated Cover Remove The combustion air inlet should be not less than 3 ft 0 9m either vertically or horizontally from the flue vent termination Combustion Air Cap Leslie VersaCap Type B 4 Diameter Single Wall Pipe Flashing 1 2 12...

Page 27: ...f the gas and electrical supply NOTE NOTE NOTE NOTE T T T The lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructio...

Page 28: ...ht Red 6 Monitoring Light Amber 7 Access Panel 8 Restrainter Nipple 5 Long 9 Terminal Block and Shield 10 Air Switch 11 Gas Valve 12 Orifice 13 Main Burner 14 Burner Clamp 15 Spark Electrode 16 Ignition Cable 17 Ignition Module 18 Transformer 120 24 VAC NOTE NOTE NOTE NOTE Access panel Access panel Access panel Access panel on on on only ly ly ly opens opens opens opens to to to to 90 90 90 90 ...

Page 29: ... 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 Check that the gas lines are not bearing the weight of the heater See also Section 11 0 Control Control C...

Page 30: ...e Are they clear and unobstructed Check the pressure at the air switch Is it higher than the minimum required Is the red wire from transformer securely connected to air switch terminal C Move the red wire to air switch terminal C Replace the red monitoring light Is one wire of the red light connected to air switch terminal NO No Yes Replace transformer Are the black and white wires to the transfor...

Page 31: ... it 24 vac No Yes Move the white wire to the transformer terminal Is the fuse OK on ignition module Yes No Replace the fuse Yes Is there a spark across igniter sensor gap Yes No Is the ground wiring between the ignition module and the control box OK No Yes Adjust the electrode tip into the flame Is the ceramic insulator OK on the spark electrode No Yes Replace the spark electrode Is the spark gap ...

Page 32: ...eck the spark gap Is it 3 16 No Yes Adjust the spark gap to 3 16 Has all the air been purged from the gas supply lines No Yes Purge the gas supply line Check the inlet pressure to the gas valve Is it between minimum and maximum for the gas type No Yes Adjust supply gas pressure Restart troubleshooting Check the manifold gas pressure during startup Is it zero inches Yes No Replace gas valve After a...

Page 33: ...son Refer to the Replacement Parts Guide in Section 23 0 for all replacement parts 21 1 REMOVAL OF SPARK ELECTRODE A 1 3 2 4 6 5 Access panel only opens to 90 3 16 1 Disconnect electrical supply and open access panel 2 Pull out the ignition cable hooked to spark electrode 3 Remove two mounting screws 4 Take out the spark electrode Check that the spark gap is 3 16 5 Check spark electrode Spark elec...

Page 34: ...Tube 0 16 WC Connector Tee Digital or Inclined Water Manometer scale 0 2 w c Temporary 1 4 ID Silicone plastic tubing for pressure test Control Box Air sensing tube bracket 1 Open hinged access panel 2 Add tubing to connect the air switch with the connector tee and the existing tubing 3 Connect plastic tubing of a digital or inclined water manometer with a 0 2 scale onto the connector tees 4 Turn ...

Page 35: ...al to gas valve d Replace spark module if fuse and power are OK IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS Fenwal 35 Fenwal 35 Fenwal 35 Fenwal 35 6087J1 6087J1 6087J1 6087J1 034 module only 034 module only 034 module only 034 module only The LED LED LED LED located on the ignition module will flash ON ON ON ON for second then OF...

Page 36: ...eel turns freely and is not rubbing housing Blower wheel may have worked loose from shaft and jammed against housing d Check for blower wheel damage replace if necessary If no damage readjust blower wheel on shaft retighten set screw e If all above does not correct replace motor 22 0 INSTALLATION DATA Date of Installation of Heaters in System Serial No Model L L L LTU TU TU TU N Natural Gas L Prop...

Page 37: ...tor Spacer 4 per motor 4 4 42740000 Motor Plate 1 5 03723000 Blower Wheel 1 6 43221000 Draft Inducer Gasket 1 7 42744000 Sensing Tube Draft Inducer 1 8 42742000 Sensing Tube Bracket 1 9 42739000 Blower Housing Sub Assembly 1 10 40504020 4 O D Flue Pipe Starting Collar 1 11 42741040 Restrictor Plate 1 I D 40 000 Btu hr 1 12 42741030 Restrictor Plate 1 1 8 I D 50 000 Btu hr 1 13 42741020 Restrictor ...

Page 38: ...r Nipple 5 long 1 33 30333070 Valve VR8205P 2408 3 W C Natural Gas 1 34 30333080 Valve VR8205P 2416 10 W C Propane Gas 1 35 42701000 Orifice Fitting Test Gauge Connection 1 37 03259xxx xxx xxx xxx Orifice for LTU 40 75 State Mo State Mo State Mo State Model Gas Type for Size del Gas Type for Size del Gas Type for Size del Gas Type for Size 1 38 42700000 Main Burner 1 39 30148000 Universal Bushing ...

Page 39: ... Gaz MAXIMUM MINIMUM MANIFOLD PRESSURE Pression a l echappement INPUT Btu Hr Consommation Btu Hr ORIFICE SIZE Dimensions bec Veilleuse MODEL NO No de Modelè Installation in 1 Aircraft hangars must be in accordance with the standard for Aircraft Hangars ANSI NFPA 409 latest edition 2 Public garages must be in accordance with the standard for parking structures ANSI NFPA 88a latest edition or with t...

Page 40: ...r control end 7 42761010 Reflector foot end 8 44028141 15 Tube Replacement Kit 3 OD ALC w one 12 radial hole flange for LTU40 for LTU40 for LTU40 for LTU40 75 75 75 75 9 42764000 U Bend 3 OD x 3 3 4 centerline radius 10 02254010 Set Screw 5 16 24 x 1 2 2 per heater 9 10 7 5 5 6 8 8 3a 2 4 3 1 1 1 Note 1 Screws Nuts and Washers are standard hardware items and can be purchased at any local hardware ...

Page 41: ...stible materials 43344990 July 2012 Installation Code and Annual Inspections Installation and Service of Space Ray equipment must be performed by a qualified contractor and conform with all requirements set forth in the Space Ray Installation and Operating Instructions and any National and Local codes pertaining to the installation service and operation of the equipment Annual inspection is recomm...