Min. Mount Height. Min. Mount Height. Length Weight

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1 *! ARNING: This heater must be installed and serviced by trained gas installation and service personnel only! Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment. Protect yourself and others by observing all safety information. Retain instructions for future reference. LS Series * For complete installation instructions, see Generic IOM this piece was inserted within. Also available at Project: Date: Location: City: State: Zip: Customer Name: Local Representative: Contractor: Engineer: Address: City: State: Zip: Phone#: Install Date: Serial#: Notes: Table of Contents Page Models 1 arnings 2 Clearances to Combustibles 2 Product Summary 3 Mechanical Instructions 3 Heater Requirements 4 Theory of Operation 4 iring Diagrams 5-7 Flowchart 8-9 Parts Listing Series Kit Contents 12 Commercial Models (Approved for commercial use) Qty. Model # Residential Models (Approved for both commercial and residential use) arranty registration options: 1. Register online at 2. Fill out this page and fax to Detroit Radiant Products Co. 3. Fill out this page and mail a copy to Detroit Radiant Products Co. Min. Mount Height Gas Type U-Tube Combustion Radiant Emitter "Type" Tube Pkg (circle one) BTU's Length Length eight Chamber Tube #1 LS N or LP 25,000 12'-3" N/A 70# 8 ft. Titanium Coated N/A 10-3 Titanium 3 LS N or LP 30,000 12'-3" N/A 70# 8 ft. Titanium Coated N/A 10-3 Titanium 3 LS N or LP 40,000 12'-3" N/A 70# 10 ft. Titanium Coated N/A 10-3 Titanium 3 LS N or LP 40,000 17'-0" N/A 85# 8 ft. Titanium Coated Aluminized 15-3 Titanium 3 LS N or LP 50,000 17'-0" N/A 85# 10 ft. Titanium Coated Aluminized 15-3 Titanium 3 LS N or LP 40,000 22'-0" 13'-0" 100# 8 ft. Titanium Coated Aluminized 20-3 Titanium 3 LS N or LP 50,000 22'-0" 13"-0" 100# 9 ft. Titanium Coated Aluminized 20-3 Titanium 3 LS N or LP 50,000 31'-3" *17'-8" 120# 9 ft. Titanium Coated Aluminized 30-3 Titanium 3 Min. Mount Height Qty. Model # Gas Type (circle one) BTU's Length U-Tube Length eight Combustion Chamber Radiant Emitter Tube "Type" Tube Pkg #1 LS N or LP 25,000 12'-3" N/A 70# 8 ft. Titanium Coated N/A 10-3 Titanium 3 LS N or LP 30,000 12'-3" N/A 70# 8 ft. Titanium Coated N/A 10-3 Titanium 3 LS N or LP 15,000 17'-0" N/A 85# 8 ft. Titanium Coated Aluminized 15-3 Titanium 3 LS N or LP 40,000 22'-0" 13'-0" 100# 8 ft. Titanium Coated Aluminized 20-3 Titanium 3 LS N or LP 50,000 31'-3" *17'-8" 120# 9ft. Titanium Coated Aluminized 30-3 Titanium 3 *Model requires 5EA-Sub accessory package. Printed in U.S.A Detroit Radiant Products Hoover Rd., arren, MI T. (586) F. (586) Form# LIOLS-1M-3/04 (LES) Replaces Form# LIOLS-2M-10/02 Baffle Pieces Baffle Pieces

2 LS Series arnings and Clearances to Combustibles! ARNING! Only certain models are for residential use. Certified under American Gas Association (AGA) requirement for residential radaint tube heaters No Do not use in the home or sleeping quarters.! ARNING! This heater must be installed and serviced by trained gas installation and service personnel only. Read and understand these instructions thoroughly before attempting to install, operate or service this heater. Failure to comply could result in personal injury, asphyxiation, death, fire, and/or property damage. Retain these instructions for future reference.! ARNING! This is not an explosion-proof heater. here there is the possibility of exposure to flammable vapors, consult the local fire marshal, the fire insurance carrier and other authorities for approval of the proposed installation. LS CLEARANCES TO COMBUSTIBLES (IN.) * MODEL. MOUNTING ANGLE SIDE FRONT BEHIND TOP LS (10) - 25,30 0º º /1 side shield 0º /2 side shields 0º ft from burner 0º NA NA NA NA LS (10,15,20) º º /1 side shield 0º /2 side shields 0º ft from burner 0º NA NA NA NA LS (15) º º /1 side shield 0º /2 side shields 0º ft from burner 0º NA NA NA NA LS (20,30) º º /1 side shield 0º /2 side shields 0º ft from burner 0º *See cover page for models certified for residential use. BELO! ARNING! In locations used for the storage of 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 thermostats or in the absence of such thermostats in a conspicuous location.! ARNING! Failure to comply with the stated clearances to combustibles could result in personal injury, death and/or property damage. TOP SIDE SIDE BELO 0º MOUNTING ANGLE TOP FRONT BEHIND TOP FRONT BEHIND BELO 0º /1 SIDE SHIELD TOP SIDE SIDE! ARNING! This heater should be installed so that the minimum clearances to vehicles, as marked on the heater, will be maintained. If vehicle lifts are present, ensure that these clearances will be maintained from the highest raised vehicle. BELO 45º MOUNTING ANGLE BELO 0º /2 SIDE SHIELDS 2

3 LS Series Mechanical Instructions This supplement is designed to address the specifics of the LS Series - See page 12 for specific product features. Product Summary LS Series commercial/residential tube heaters are available from 10 to 30 foot, 25,000 through 50,000 BTU s, natural or LP gas. LS Series are positive pressure, single stage heaters and feature aluminized steel for it s radiant pipes. Specific Mechanical Instructions LS MODELS 25,000 thru 50,000 BTUH IMPORTANT APPROVED VENT PACKAGES Figure 1 3-DSK RTVP-3 Be sure to identify the titanium combustion chamber and place as the first tube section. Do not use the aluminized steel radiant tubing as the first tube (combustion chamber). Radiant Tube Reflector For residential installations it is required that the appliance be vented. Venting must be 3 in. diameter (4 in. diameter for common venting). Refer to the flue venting guidelines, figure 1 and on page 19 of the General Manual. For residential installations mounted below 8 feet, it is required that Protective Guards (part # PG) are installed on heater (see figure 2). Protective Guard (part # PG) Figure 2 LS BAFFLE INSTRUCTIONS ITH TURBULATOR FINS Insert assembled baffles with HEAT Baffle preceeding the PRESSURE Baffles (fig. 1). Allow for turbulator fins so that the key hole is inserted first. All baffles must be placed vertically in the last radiant tube/heat exchanger (fig.2). Figure 1 If the heater is installed with a U or Elbow fitting all baffle must still remain. There may be some instances where the baffle will be cut into two sections. Place as much baffle as possible downstream of the U or Elbow and the remainder of the baffle just before the U or Elbow fitting. 1st 2nd 3rd Key Hole HEAT BAFFLE PRESSURE BAFFLE 3' Figure 2 IMPORTANT: TE FIN DIRECTION & BAFFLE ASSEMBLY 100º 80º TOP VIE LAST RADIANT TUBE Key Hole HEAT BAFFLE Turbulator fins PRESSURE BAFFLE END VIE SIDE VIE CROSS SECTION ITH BAFFLE Figure 3 3

4 LS Series Electrical Requirements 120 Volt - 60 HZ. Hot surface ignition. Starting Current 4.8 Amps. Running Current 1.1 Amps. 24V controls optional (24VAO). Gas Requirements Manifold Pressure Nat. 3.5 LP Minimum Inlet Pressure Nat. 5.0 LP Maximum Inlet Nat LP Ventilation Requirements Residential models must be vented. Consult the generic supplement for venting instructions and unvented operation. For unvented operation (commercial use only), there must be a positive air displacement of at least 4.0 CFM per 1000 BTU/H for natural gas or 4.5 CFM per 1000 BTU/H for LP gas. VE-4 termination cap must also be used. Maximum vent length for all models is 20 ft. Approved & Required Vent Caps Sidewall Single 3 Duravent sidewall vent kit (3-DSK). 3 Vent terminal (SD-3). Sidewall Dual (Sharing common t-stat) 4 Duravent sidewall vent kit (4-DSK). 4 Vent terminal (SD-4). Theory of Operation Starting Circuit hen voltage is applied to L1 and L2 (see diagram on right), a circuit is completed from L1 via the blower motor to L2. The blower fan is mounted in the control box and rated to supply sufficient air for combustion. Air pressure generated by the blower will cause the normally open burner pressure switch No. 1 to close. Another circuit is completed from L1 to the module ignition control and back to L2. There is a five second delay, then the glo-bar is powered. After the glo-bar has been powered for 45 seconds, the control module causes the gas valve to open and initiates the ignition trial. Power to the glo-bar is shut off during the last two or three seconds of the ignition trial. Running Circuit After ignition, the flame rod monitors the flame. As long as a flame is present, the valve is held open. If the flame is lost, the control acts to close the valve within one second, and a new trial sequence identical to that at start-up is initiated. If proof of flame is not established within 8.5 seconds, the unit will lock out. If lockout occurs, the control can be reset by briefly interrupting the power source. Roof Single Approved 3 rooftop raincap (RTVP-3). Roof Dual (Sharing common t-stat) Approved 4 rooftop raincap (RTVP-4). Important: Do not use sidewall caps for roof venting and do not use roof caps for sidewall venting. 4

5 Internal iring Diagrams LADDER DIAGRAM - MARK17DU-117 ITH THERMO L1 120VAC L2 BLOER INDICATOR LIGHTS THERMO SITCH GAS VALVE PRESSURE SITCHES O R IGNITOR BR PROBE SIC1 LINE1 TH NEUT VALVE NEUT GND G IGNITION MODULE IF ANY OF THE ORIGINAL IRE AS SUPPLIED ITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED ITH IRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105 C. BLOCK DIAGRAM - MARK17DU-117 ITH THERMO TERMINAL BLOCK PRESSURE SITCHES BURNER L1 INDICATOR LIGHTS O THERMO SITCH IGNITOR BR FLAME ROD 120VAC L2 BLOER M 1 C 2 P 3 M 1 C 2 P 3 R MARK 17DU-117 IGNITION MODULE PROBE SIC1 LINE1 TH NEUT VALVE NEUT GND G GAS VALVE 5

6 LS Series Field iring Diagrams G R Common required for thermostats that require constant power. HEATER L2 L1 115V HITE TO HEATER BRANCH #1 VIOLET 24V 24V BY OTHERS HITE 115V TO HEATER BRANCH #2 HEATER HEATER BLACK TE: This Transformer Relay will handle up to 3 tube heaters per branch (6 tube heaters total) or up to 8 DR heaters per branch (16 DR heaters total) POLE #2 POLE #1 G Y RED/YELLO RED COIL R C B L2 L1 115V TE: Brown and Yellow wires on the R8285 transformer relay are normally not used. R 8285 Transformer Relay - Used in conjunction with any low voltage T-stat (i.e. XL411, T8600) when wiring tube heaters or line voltage DR heaters 24V T-Stat & Connection - Relay Tranformer Required FIELD IRING INSTRUCTIONS T-stat HEATER TE: Up to 4 line voltage tube heaters can be wired to most T-stats. Heaters on same vent must share the same t-stat. GRD NC COM HEATER HEATER L1 L2 120V Connection(s) FIELD IRING FOR MULTIPLE LINE VOLTAGE HEATERS 6

7 Alternative iring Diagrams MARK17DU-117 ITH THERMO TERMINAL BLOCK PRESSURE SITCHES BURNER T-STAT TERMINAL 24V L1 INDICATOR LIGHTS O THERMO SITCH IGNITOR BR FLAME ROD 120VAC L2 BLOER M 1 C 2 P 3 M 1 C 2 P 3 R MARK 17DU-117 IGNITION MODULE PROBE SIC1 LINE1 TH NEUT VALVE NEUT GND G GAS VALVE BLOCK DIAGRAM FOR INTERNAL RELAY OPTION THE INTERNAL RELAY ALLOS FOR LO VOLTAGE T-STAT OPERATION OF LINE VOLTAGE HEATERS COMMON REQUIRED FOR THEMOSTATS THAT REQUIRE CONSTANT POER. COMMON C N 24v ITH INTERNAL RELAY OPTION R 24v DIGITAL T-STAT EXTERNAL TRANSFORMER 24V N 24v ITH INTERNAL RELAY OPTION 120 V EXTERNAL TRANSFORMER IS NEEDED HEN USING THE INTERNAL RELAY OPTION. A 40VA TRANSFORMER IS SUFFICIENT TO OPERATE 10 APPLIANCES L2 L1 N 24v ITH INTERNAL RELAY OPTION FIELD IRING FOR INTERNAL RELAY OPTION 7

8 LS Series Troubleshooting Flow Chart Turn up thermostat Does the fan turn on? Does the switch light energize? Does the ignitor warm up and glow red? Does valve light come on? Is the light burnt out? If so, replace. Is the power at the heater 120V? Find the source of the electrical problem. Is the ignitor physically damaged? Is the inlet or the outlet of the unit obstructed (i.e. ice, birds nest, dirt)? Remove obstruction. Replace ignitor. Does burner ignite at all? Is the blower obstructed? Remove obstruction & lubricate fan. Check voltage at ignitor during ignition sequence (usually seconds after power to the heater). Is it 120V? Replace circuit board. Check for loose wiring or resistance in hose connection to pressure switch. Are they ok? Is there 120V coming to the fan? Correct wiring. The circuit board and/or wiring harness may be faulty and need to be replaced. Repair wiring. Is resistance through the ignitor S. Replace ignitor. Replace faulty light. The fan is faulty and must be replaced. Replace burned out light. Replace thermal fuse. The heater is equipped with 2 safety pressure switches. The burner switch in the blower compartment is a normally open switch and the exhaust switch in the gas valve compartment is a normally closed switch. Temporarily place jumpers across the terminals of each switch, one at a time. (Be sure to reinstall the cover.) Does the light energize? Temporarily place jumpers across the thermal fuse (be sure to reinstall the cover). Does the light energize? Replace the appropriate switch after verifying the following: * Baffle(s) is in the tube(s) farthest from the burner. * Heater, fan blower, squirrel cage, intake and exhaust are clean and free from 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). Does valve open? Check to make sure pressure is within min. & max. inputs as indicated on AGA burner rating label. Are both ok? Correct problem. Replace valve. 8

9 After ignitor is warmed up, does gas valve open? Test for 120V at valve during valve opening period (usually seconds after power to the heater). Is there 120V to valve? Check to make sure gas pressure is within minimum and maximum inputs, as indicated on AGA burner rating label. Is gas pressure ok? Possibly, the circuit board and/or wiring harness is faulty. These should be replaced. Correct problem. Replace gas valve. * ARNING: By-passing any pressure switch is for testing purposes only. Do not leave switch by-passed during normal operation or heater s built-in safety mechanisms will be compromised. Does the burner ignite? Is the gas cock in an ON position? Check to make sure gas pressure is within minimum and maximum inputs, as indicated on AGA burner rating label. Is gas pressure ok? Correct problem. Make sure gas lines were purged of air. Does the burner stay on? Does heater stay on until call for heat ends? The following can cause the heater to shut down: * Improper grounding. * High winds. * Taking combustion air from the attic. * Dirty environment. * Baffle not located properly. * Fluctuating gas pressure. Troubleshooting ends. Does the burner stay on for approx. 8 seconds and then shut off? Does the burner come on and then turn off immediately (1 or 2 seconds). Is the heater properly grounded? Is the heater s polarity correct? Check to make sure that the pressure is within minimum and maximum inputs as indicated on the AGA burner rating label. Is gas pressure ok? Correct problem. Correct problem. Exhaust pressure switch may be faulty or there is a restriction in the exhaust. Certain models have a separate glo-bar ignitor and flame rod sensor located next to the glo-bar. Other models have a glo-bar ignitor only, which acts as both an ignitor and flame sensor. Does model in question have glo-bar ignitor only? Consult factory for proper parts. ith voltmeter, check DC voltage at flame rod. Is it greater than 30 Volts DC? Sensing rod is faulty or flame is weak. Check to make sure heater is operating at proper gas pressure as indicated on AGA burner rating label and then replace sensing rod if needed. Check to make sure flame sensor wire is ok and then replace circuit board. 9

10 D 264E 1064B 264F A B A 31B 68A 55A B P F 1060D A LS Series - 3 Tube Heater Installation, Operation, Maintenance and Parts Manual LS Series Parts Breakdown Emitter Tube Combustion Tube C 10

11 Basic Parts List LS SERIES PARTS LISTING TP# ITEM TP# ITEM TP-1 CONTROL BOX COVER TP-264D N.O. BURNER PRESS. SITCH (30MBTU/H) TP-5 FLANGE GASKET TP-264E N.O. BURNER PRESS. SITCH (25MBTU/H) TP-9 CONDUIT COUPLING TP-264F N.O. BURNER PRESS. SITCH (40 MBTU/H) TP-10 CONDUIT 4" X 1/2" TP-301 DIVIDER PANEL / P.S. MOUNTING TABS TP-11 GLO-BAR IGNITOR BOX TP V INDICATOR LIGHT TP-12 GLO-BAR IGNITOR BOX COVER TP-329 1/4" NEUTRAL TERMINAL BLOCK TP-17 SIGHT GLASS KIT TP-330 DIVIDER GROMMET TP-20C 120" ALUMINUM REFLECTOR TP-331 GREEN SELF TAP GROUND SCRE TP-31B CONTROL BOX BRACKET TP-333 3' BLACK 120V PLUG TP-33B 1/2" GAS COCK TP-334 YELLO 24V CONTROL IRE TP-44 AIR ORIFICE /SCREEN - CONSULT FACTORY TP-351A MARK 17DU-117 POTTED CIRCUIT BOARD TP-50 GLO-BAR IGNITOR TP-352A LONG IRING HARNESS FOR 17DU-117 TP-55A FAN BLOER (40, 50, 60 MBTU/H) TP-1002 LEFT END PANEL / LIGHT HOLES TP-68A STRAIN RELIEF BUSHING TP-1003 RIGHT END PANELS - HOLES TP-70 CONTROL BOX COVER GASKET (PER FOOT**) TP-1004 CONTROL BOX TP-76 RUBBER GROMMET TP-1015 FAN BLOER (25, 30 MBTU/H) TP-83 STAINLESS STEEL FLEX CONNECTOR TP-1033 THERMAL FUSE TP-105 REFLECTOR END CAP TP-1060D EXHAUST PRESS. SITCH (25,30 MBTU/H) TP-106 REFLECTOR CLIP TP-1060F EXHAUST PRESS. SITCH (40,50 MBTU/H) TP-112 5' REFLECTOR TP-1064B N.O. BURNER PRESS. SITCH (50 MBTU/H) TP-122 GASKET FOR AIR ORIFICE & AIR COLLAR TP-1062 EXHAUST PRESSURE TUBE (VINYL) TP-204 GAS ORIFICE - CONSULT FACTORY TP /4" ATMOSPHERIC & PRESSURE TUBES (VINYL) TP-205 GLO-BAR HOLDER TP-1070 BURNER (25 TO 50 MBTU/H) TP-208 "Z" MOUNTING BRACKET TP-1077 TUBE CLAMP TP E36A-246 GAS VALVE - NAT GAS ASSY TP-1078 REFLECTOR CENTER SUPPORT TP-209P 36E36A-240 GAS VALVE - LP GAS ASSY TP-1079 IRE HANGER / SPRING CLIP TP-212 1/2" X 3" PIPE NIPPLE TP '' BURNER TUBE ITH FLANGE TP-217 PRESSURE BARB FITTING TP FT. TITANIUM COMBUSTION TUBE TP-221 GLO-BAR HOLDER GASKET TP FT. STAINLESS RADIANT TUBE TP-222 FLAME ROD TP " S.S. INTERLOCKING 33" PRESSURE BAFFLE ITH TABS TP-222A FLAME ROD IRE TP " S.S. INTERLOCKING 33" HEAT BAFFLE SECTION TP-223 GAS MANIFOLD ** 6 TOTAL NEEDED TO COVER OUTER EDGES OF A (TP-70). 11

12 KIT CONTENTS AND PRODUCT FEATURES Kit contents for the LS Series are shown below. Reference the proper column for your particular models length. FILLED BY: LS SERIES KIT CONTENTS TP# DESCRIPTION 10 FOOT 15 FOOT 20 FOOT 30 FOOT TP " TUBE CLAMPS TP " HANGERS TP " REFL. CNTR. SPRT TP-105 REFL. ENDCAPS TP-106 REFL. ENDCAP CLIPS TP-33B 1/2" GAS COCK TP-83 24" SS FLEX LINE IOM INSTALL / OP MANUAL Reflector Center Support TP SS Flex Connect TP-83 3 Hanger TP Butt Clamp TP /2 Gas Cock TP-33B Reflector End Caps TP- 105 Bag of Reflector endcap clips TP-106 General IOM (LIOGT) AND Series Insert (LIOLS) Product Features APPROVALS IAS, CGA, AGA, CSA. Certain models are residentially certified to AGA No Outdoor Approval with OD-KIT. BURNER SIGHT GLASS For burner inspection. COMBUSTION AIR INLET & VENT 4 air inlet duct. 3 vent duct. CONTROLS 100% safety shut off. Moisture and corrosion resistant ignition module. Dual differential pressure switches. Silicon carbide hot surface igniter. Flame rod sensing. Pre-purge controls. Indicator lights. ENAMELED CONTROL BOX Outside air collar (4 ) attached. Totally enclosed components. EMMITER & COMBUSTION TUBES 16ga. 3 O.D. titanium coated combustion chamber. 16ga. 3 O.D. aluminized steel radiant tubes. OPTIONAL FEATURES 24VAO - Used when operating heater with 24V thermostat. Includes internal relay, power cord and indicator lights. External transformer required. GAS CONNECTION 1/2 gas cock included. 24 x 1/2 flex connector included. RADIANT SURFACE AREA (SQ. FT.) 10 models models models ARRANTY* 1 year - Burner box components. 3 years-combustion and radiant tubes. 5 years-stainless steel burner. * See cover for warranty registration information. OTHER One reflector center support per reflector. Stainless steel turbulator baffle included. Stainless steel upgrades (burner box and reflectors only) are available. Silicone sealed control box available. Made in U.S.A. Visit for additional information & parts. 12

Typical Mount Height. Combustion Chamber

Typical Mount Height. Combustion Chamber ! WARNING: This heater must be installed and serviced by trained gas installation and service personnel only! Improper installation, adjustment, alteration, service or maintenance can cause property damage,