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5.0

 Maintenance 

 

Troubleshooting Guide

LS 

Series

43

Check to make sure gas pressure is within minimum and 

maximum inputs, as indicated on burner rating plate. 

Is gas pressure OK?

Were the gas lines purged of air?

Is the heater properly 

grounded? Is the heater’s 

polarity correct?

With micrometer, check 

amperage at flame rod. Is it 

greater than 1.0 microamps?

Check to make sure flame 

sensor wire is OK.  If so, 

then replace circuit board.

Sensing rod is faulty or flame 

is weak. Check to make sure 

heater is operating at proper 

gas pressure as indicated on 

burner rating plate and then, if 

needed, replace sensing rod.

Replace gas valve.

Yes

Correct problem.

Correct problem.

No

No

Yes

Yes

No

Purge gas line.

No

Yes

Confirm manifold pressure is 

correct and/or gas orifice is not 

plugged and is the correct size.

Содержание LS-10-25

Страница 1: ...s or in the absence of such thermostats in a conspicuous location Do not use this heater in indoor living or sleeping quarters ect Installation of a tube heater system in residential indoor living spaces may result in property damage serious injury asphyxiation or death LS Series Installation Manual The LS Series Infra Red Tube Heater is a positive pressure single stage radiant heater system This ...

Страница 2: ...r U Bend Accessory Configuration 17 Burner Control Box Suspension 19 Reflector Assembly 20 Baffle Assembly and Placement 22 Final Heater Assembly 23 Venting 24 Sidewall Venting 25 Rooftop Venting 26 Optional Unvented Operation 28 Combustion Air Requirements 28 Gas Supply 30 Electrical Requirements and Diagrams 33 4 0 Operation 37 Lighting Procedures 37 Sequence of Operation 38 Diagnostics 39 5 0 M...

Страница 3: ...raight Length U Tube Length Standard Weight lbs Recommended Mounting Height Combustion Chamber Black Coated Radiant Emitter Tube s Black Coated Residential Certification LS 10 25 N or LP 25 000 12 1 N A 70 lbs 7 to 11 Titan Alum Yes LS 10 30 N or LP 30 000 12 1 N A 70 lbs 8 to 11 Titan Alum Yes LS 10 40 N or LP 40 000 12 1 N A 70 lbs 10 to 14 Titan Alum No LS 15 40 N or LP 40 000 16 10 N A 85 lbs ...

Страница 4: ...labels must be maintained on the tube heater and should be replaced if they become illegible Contact either your local distributor or the product manufacturer for obtaining replacement signs or labels It is important to provide warnings to alert individuals to potential hazards and safety actions In locations used for the storage of combustible materials ANSI Z83 20b and CSA 2 34 require a placard...

Страница 5: ...TP44 C1 C2 C3 3 3 1 1 1 2 1 5 8 1 5 8 Relay Filter 24 Volt In 120 Volt In None N A None 3T plug 832 2x4 Box Gas In Extra VL Orifice 7 8 FC Flare 83 None N A 66 TUBE COMBINATION KIT PARTS Combustion Radiant Clamp Hangers RCS Reflector Endcap Baffle ID Electric Special 1 Special 2 Tag For Internal Use Only TP 26A TP 26A TP 21B TP 19B TP 82 TP 20C TP 105 TP 651 4 R TP 26E TP 26D TP 21O TP 19B SS TP 8...

Страница 6: ...lowing symbols and signal words when there is a hazard related to safety or property damage CAUTION 2 0 Safety Warning Symbols Applications LS Series 2 0 Safety Warning indicates a potentially hazardous situation which if not avoided could result in death or injury Caution indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury Notice indicates a p...

Страница 7: ...e scaffolding or other objects Provisions shall be made to assure accessibility to suspended tube heaters for recurrent maintenance purposes Standards Certifications and Government Regulations Installation of this tube heater must conform with all applicable local state and national specifications regulations and building codes Contact the local building inspector and or fire marshall for guidance...

Страница 8: ... of gas fired tube heaters for approval of the proposed installation In locations used for the storage fo 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 A critical safety factor to conside...

Страница 9: ...9 8 10 48 with 1 side shield 0 29 8 6 48 with 2 side shields 0 16 16 6 48 20 ft from burner 0 7 7 6 30 Chart 1 1 Clearance to Combustibles in Inches see Figure 1 1 for Mounting Angles Heaters mounted on an angle between 0 to 45 must maintain clearances posted for 0 or 45 whichever is greater NOTE Use high BTU output when determining clearances The minimum end clearance is 12 in Figure 1 1 Mounting...

Страница 10: ...een evaluated Does the design meet the needs of the space Have recommended mounting heights been observed Have all clearance to combustible situations been observed Is the supply burner end of the heater located where more heat is required Is it best to offset the heaters and or rotate the reflectors towards the heat zone Are extra guards side shields U or L reflector covers required Does the heat...

Страница 11: ...overage Area Straight Config LxW Coverage Area U Tube Congfig LxW Recommended Mounting Height ft Distance Between Heaters ft Dimension A Distance Between Heater Rows ft Dimension B Maximum Distance Between Heaters and Wall ft Dimension C Figure 3 3 Mounting Height Dimensions see chart 3 1 for dimensions Dimension A Dimension B Distance between heater rows Dimension C Maximum distance between heate...

Страница 12: ...rs P N TP 1079 may be necessary The spacing between the burner control box mounting brackets and the first hanger should be approximately 2 4 The space between the first two hangers placed on the first tube should be approximately 8 10 The space between hangers thereafter one per tube should be approximately 9 8 Hanger Placement and Suspension 12 Improper suspension of the tube heater may result i...

Страница 13: ...entifying the titanium treated combustion chamber s is located on the swaged end of the tube s Tube Clamp Refer to page 18 for U bend configuration dimensions Model Dimension Straight Configuration Suspension Points Control Box Stabilizer Shipping Weight Chain Set Qty Straight Chain Set Qty w TF1B Optional Brass Knuckle P N BK Optional Single Mount Bracket 10 ft 12 1 145 2 2 70 lbs 4 5 2 1 15 ft 1...

Страница 14: ...urely attached NOTE Threaded rod and turnbuckles may be used 6 Attach hangers to chains Adjust chain lengths until radiant tubing is level and equal weight distribution is achieved Chains must be straight up and down Do not install chains at an angle as this can result in tube warpage or separation Figure 3 5 Mounting the Hangers 3 Wood Beam 3 Concrete Beam 4 Beam Clamp 4 Screw Hook 4 Screw hook w...

Страница 15: ...ng with a 1 double loop chain and S hook 45 30 15 U Tubes can be mounted at a 15 30 or 45 degree angle with two suspension points using two optional Brass Knuckle P N BK fittings 1 double loop chains and S hooks U Tubes can be mounted from a single suspension point using an optional Single Mounting Bracket P N SMB with five S hooks and 1 double loop chains Figure 3 7 Angled Hanger Mounting Options...

Страница 16: ... 23 for tube installation sequence 2 Slide tube clamps onto radiant tubes see figure 3 9 Figure 3 8 Attach Hangers Figure 3 9 Attach Tube Clamps Hanger Welded seam faces down Swaged End Tube Clamp Radiant Tube NOTE If the tube clamp comes apart the spacer must be re assembled with the spacer s concave surface facing against the radiant tube surface Concave surface 16 3 0 Installation Radiant Tube ...

Страница 17: ...y be installed incorrectly 4 Center tube clamps over the seam where two radiant tube sections connect If necessary rotate tube clamps so they will not interfere with the reflector end caps during expansion and contraction of the heater 5 Tighten tube clamp bolts to secure When proper compression is obtained 40 60 ft lbs torque the tube seam will create a visible mark on the tube clamp NOTE Excessi...

Страница 18: ...and Elbow Dimensions Chart 3 4 Overall Dimensions for Heaters Configured With U Bend P N DB TF1B Elbow can be set in both directions Tube Clamp Tube Clamp Dimension A Dimension B P N DB TF1B 3 P N DB E6 3 8 Tube Length Dimension B Notes 10 ft N A N A 15 ft N A N A 20 ft 13 0 156 N A 30 ft 17 8 212 Requires P N DB 5EA SUB Model BTU Range Dimension A 25 000 N A 30 000 N A 40 000 10 ft 50 000 10 ft 1...

Страница 19: ...pension anchor to hanging point 3 Attach S hook and 1 double loop chain P N THCS to anchor Check that it is securely connected 4 Attach chain assemblies and S hooks to mounting brackets on the burner control box Adjust chain lengths until level and in straight alignment with radiant tubes Burner sight glass will be visible from the floor Figure 3 14 Burner Control Box Assembly Side View 1 2 3 4 Bu...

Страница 20: ...ould overlap approximately 4 inches 3 To prevent the reflectors from shifting secure the reflector sections together using sheet metal screws except at the expansion joint see p 23 NOTE Installer to supply sheet metal screws 4 Attach reflector end caps with polished finish inward to each end of the reflector run Secure with clips Reflectors and reflector accessories direct infra red energy to the ...

Страница 21: ...sories Reflector Accessory Description Part Number Reflectors cannot be rotated when used with a reflector elbow RE U shaped reflector RU or side shield SSE Refer to the Clearance to Combustible chart on page 9 for minimum distances to combustibles when side shield extension s are used Additional accessory options are listed in the Detroit Radiant Products Company Tube Heater Accessory Guide or on...

Страница 22: ... and proper fin direction 80 towards exhaust end and 100 towards burner end Figure 3 19 2 Rotate baffle assembly so that it is in the vertical position 3 Slide baffle assembly into the last radiant tube section furthest from burner control box NOTE It may be necessary to cut the heat baffle into two sections when the heater is configured with a U or L shaped accessory fitting In this case place as...

Страница 23: ...s Chart 3 6 Secured Joints and Baffle Location for Reflectors 15 Foot Burner Control Box with 16 Burner Tube Key Expansion Joint on Reflectors Secured Joint on Reflectors Titanium Treated Combustion Chamber w Clamp Aluminized Radiant Tube with Clamp Baffle Location 20 Foot 30 Foot ...

Страница 24: ... B149 2 Installation Codes for Gas Burning Appliances The heating system may operate either vented or un vented page 28 Venting can terminate through the sidewall horizontal or the roof vertical and be individually or commonly vented Venting Requirements This appliance must be vented in residential installations 3 in single wall 26 gauge min galvanized steel vent pipe or Dura Connect single wall f...

Страница 25: ...tion criteria if roof pitch exceeds 9 12 Sidewall Venting Guidelines Vent Pipe Angle To prevent moisture from entering the heater system slope the vent pipe down toward the outlet 1 4 in per foot of length Do not pitch the heater Vent must be a minimum of 36 in below or extend beyond any combustible overhang Vent Cap Single wall Vent field supplied Storm Collar Adjustable Roof Flashing 3 in Double...

Страница 26: ...om the sidewall of the building Vent must be a minimum of 36 in below or extend beyond any combustible overhang Consult the NFPA ANSI Z223 1 Gas Vent Termination criteria if roof pitch exceeds 9 12 Canada Vents must terminate a minimum of 3 ft from a window or door that may be opened and non mechanical air supply inlet or combustion air inlet into the building Vents must terminate a minimum of 6 f...

Страница 27: ...not operate individually Figure 3 23 Common Rooftop Venting Side View Figure 3 24 Common Sidewall Venting Top View Double Wall B Vent Consult the NFPA ANSI Z223 1 Gas Vent Termination criteria if roof pitch exceeds 9 12 4 in Rooftop Vent Cap Roof Dual Exhaust Assembly P N DB Y Heater Firestop Spacer 4 in Double Wall B Vent 24 in Min Heater Heater Dual Exhaust Assembly P N DB Y Sidewall 4 in Sidewa...

Страница 28: ... Use of combustion air intake WARNING This appliance must be vented in residential installations Unvented tube heaters in residential spaces may result in property damage serious injury or death Use unvented operation in commercial and industrial installations with proper ventilation rates only Optional Unvented Operation Figure 3 25 Minimum End Clearances 12 in Min Combustion Air Requirements Com...

Страница 29: ...Air Supply for Single Heater Intake Side View Figure 3 27 Horizontal Outside Air Supply for Single Heater Intake Side View Figure 3 28 Vertical Outside Air Supply for Common Intake Side View Roof Intake Cap Roof 18 in Minimum Wall Roof Burner Control Box Flexible Air Inlet Boot Flexible Air Inlet Boot Flexible Air Inlet Boot 4 Pipe 4 Pipe Roof Intake Cap 18 in Minimum 6 Pipe 4 Intake Pipe NOTE Com...

Страница 30: ... 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 Air Intake Duct Size Max Intake Length Duct Size Max Intake Length General No ...

Страница 31: ...le It may not be concealed within or run through any wall floor 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 system to electrically ground the heater 1 Install a sediment trap drip leg if condensation may occur at any point of the gas supply line This will decrease the poss...

Страница 32: ...tighten mating pipe connections 5 Final assembly must be tested for gas leaks according to NFPA 54 and all local codes and or Standards When using a stainless steel flexible gas connector do not attach the connector nuts directly to the gas pipe supply Connector nuts must be installed to an approved adapter Testing for gas leaks with an open flame or other sources of ignition may lead to a fire or...

Страница 33: ...rip that accepts three 3 1 4 insulated female spade terminals or a 36 yellow 24V control wire Do not supply 120V to the 24V connection The 120V supply connection is factory wried with a three prong pig tail Refer to LS Series field wiring diagram Figure 3 1 NOTE A relay transformer may be used in lieu of the factory installed 24VAO option 120 Volt 60 Hz GRD 3 wire 120V or 24V thermostat connection...

Страница 34: ... Standard and in Canada refer to the most current revisions to the CSA C22 1 Part I Standard Wiring Figure 3 1 Field Wiring Diagrams A 120V Single Multiple Line Voltage Heater s LS Series Burner Control Box B 24V Thermostat Control requires optional combination relay transformer P N R8285B A transformer relay is used in conjunction with most low voltage thermostats when wiring tube heaters NOTE Th...

Страница 35: ...agrams A LS Series Ladder Diagram TP 351A with Thermo Cutoff B LS Series Block Diagram TP 351A with Thermo Cutoff SIC1 LINE1 NEUT GND NEUT TH PROBE VALVE BK BK BK BK G BR W BK BK W W N R BK O BK BK 120VAC L1 Blower Indicator Lights Pressure Switches Ignitor Ignition Module Gas Valve Flame Rod BK Thermo Cutoff BK W R BK BK BK Ground Neutral Valve Neutral TH Line1 SIC1 Probe W BK BK BK BK BR W G 120...

Страница 36: ...urner Ignitor Flame Rod Terminal Block Thermostat Terminal NO NC COM Relay Gas Valve BK W BK Pressure Switches Indicator Lights BK Thermo Cutoff BK BK MARK 17DU 117 OR 35 75 Ignition Module O 120 V 24V Additional wire is needed on thermostats that require constant power To 120V Gounded Outlet LS Series Burner Control Box w 24VAO To 120V Gounded Outlet To 120V Gounded Outlet L1 N COM 24V COM 24V CO...

Страница 37: ...the lowest setting 3 Turn OFF all electrical power to the appliance 4 Turn manual shutoff clockwise to OFF 5 Wait five 5 minutes to clear out any gas If you smell gas STOP Follow the safety information found on page 1 If you smell gas and on safety label afixed to the heater If you do not smell gas proceed to step 6 6 Turn manual shutoff knob counterclockwise to ON 7 Turn ON all electrical power t...

Страница 38: ...s If flame sense is not established within 8 5 seconds the heater will attempt two 2 additional ignition sequences before proceeding to soft lockout Soft lockout automatically retries after one 1 hour or the control can be reset by briefly interrupting the power source Running Circuit After ignition the flame rod monitors burner flame If sense of flame is lost the control immediately acts to reign...

Страница 39: ...ight 1 Indicates valve is energized Light 2 Indicates pressure switches are closed Operational Indicator Lights Operational Indicator LIghts The externally located operational indicator lights are provided to assist in throubleshooting of the heater Refer to the following pages for additional troubleshooting ...

Страница 40: ...ater 120V Find the source of the electrical problem between panel and heater No Yes Remove obstruction and lubricate fan No Yes Does the switch light energize Yes Is the light burnt out If so replace No No Yes Remove obstruction No No No No Yes Yes Replace ignitor Does valve light energize Yes Does the burner ignite at all No The circuit board and or wiring harness may be faulty and needs to be re...

Страница 41: ...om dirt and obstructions The 4 air intake pipe does not exceed 20 feet and or 2 elbows There is not a negative pressure experienced at the area of air intake i e attic space high winds very tight building If any of the above are occuring please address the problem Is resistance through the ignitor 50 400 Ω Replace ignitor No Consult factory Yes Yes No The heater is equipped with two safety pressur...

Страница 42: ...he 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 within minimum and maximum inputs as indicated on the burner rating plate Is gas pressure OK Pressure switch may be faulty or there is a restriction in the exhaust Does the heater stay ON until a call for heat ends Troubleshooting ends The heat...

Страница 43: ... amperage at flame rod Is it greater than 1 0 microamps Check to make sure flame sensor wire is OK If so then replace circuit board Sensing rod is faulty or flame is weak Check to make sure heater is operating at proper gas pressure as indicated on burner rating plate and then if needed replace sensing rod Replace gas valve Yes Correct problem Correct problem No No Yes Yes No Purge gas line No Yes...

Страница 44: ...r Box TP 83 24 in Stainless Steel Flexible Gas Connector TP 12 Glo Bar Ignitor Box Cover TP 84 1 2 in Female Male Flare Fitting TP 13 8 x 1 2 in Self Drilling Screw TP 105 Aluminum Reflector End Cap TP 14 Sight Glass Gasket TP 106 Reflector End Cap Clips 8 pcs TP 15 Sight Glass TP 112 60 in Aluminum Reflector TP 16 Sight Glass Washer TP 113 Reflector Tension Spring TP 17 Sight Glass Kit TP 114 Pla...

Страница 45: ...E N O Burner Pressure Switch 25 MBH TP 1060D N C Exhaust Pressure Switch 25 30 MBH TP 264D N O Burner Pressure Switch 30 MBH TP 1060F N C Exhaust Pressure Switch 40 50 MBH TP 264F N O Exhaust Pressure Switch 40 50 MBH TP 1070 Burner TP 301 Burner Control Box Center Panel TP 1076 5 ft x 3 in Coated Aluminized Tube TP 302 End Panel Left TP 1077 3 in Tube Clamp TP 302A End Panel Left with 24VAO Optio...

Страница 46: ...re necessary Do not operate unit Periodically 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 the heater Contact service personnel Periodically inspect the integrity of the heater venting and combustion air system Check for obstructions leaks damage fatigue or corrosion Do not o...

Страница 47: ...d 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...

Страница 48: ...nd Cap TP 1077 3 Tube Clamp TP 106 Reflector End Cap Clips TP 33B 1 2 Shut Off Valve Ball Valve Inlet Tap TP 83 24 Stainless Steel Flexible Gas Connector Kit Contents Check List 48 LS Series Kit Contents LS Series Installation Operation and Maintenance Manual F N LIOLS TP 1078 3 Reflector Center Support RCS 2008 Detroit Radiant Products Co 21400 Hoover Road Warren MI 48089 Phone 586 756 0950 Fax 5...

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