XTS Series - 4-4 Tube Tube Heater Heater Installation, Installation, Operation, Operation, Maintenance Maintenance and Parts and Manual Parts Manual! ARNIN: 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. XTS Series For complete installation instructions, see eneric IOM this piece was inserted within. Also available at www.reverberray.com. Project: Date: Location: City: State: Zip: Customer Name: Local Representative: Contractor: Engineer: Address: City: State: Zip: Phone #: Serial #: Model #: Date of Installation: Notes: Table of Contents Page Models 1 arnings Clearances to Combustibles Product Summary 3 Mechanical Instructions 3 Heater Requirements 4 Theory of Operation 4 iring Diagrams 5-7 Flowchart 8-9 Parts Listing 10-11 Series Kit Contents 1 Models V.6/03 Qty. Model # Model requires 5EA-Sub Accessory Package. arranty registration options: 1. Register online at www.reverberray.com/warranty.. Fill out this page and fax to Detroit Radiant Products Co. 3. Fill out this page and mail to Detroit Radiant Products Co. Typical Mount Height as Type (circle one) TU's Straight Length U-Tube Length eight Combustion Chamber(s) Radiant Emitter Tube "Type" Tube Pkg #1 "Type" Tube Pkg. # XTS 0-50 N or LP 50,000 1'-7" 13'-0" 10 # 9' - 14' Aluminized 4" Hot-rolled 0-4 Alum-HRT N/A 5 XTS 0-60 N or LP 60,000 1'-7" 13'-0" 10 # 10' - 15' Aluminized 4" Hot-rolled 0-4 Alum-HRT N/A 5 XTS 0-75 N or LP 75,000 1'-7" 13'-0" 10 # 11' - 18' Aluminized 4" Hot-rolled 0-4 Alum-HRT N/A 5 XTS 30-50 N or LP 50,000 31'-3" 17'-10" 10 # 10' - 15' Aluminized 4" Hot-rolled 30-4 Alum-HRT N/A 4 XTS 30-60 N or LP 60,000 31'-3" 17'-10" 160 # 11' - 18' Aluminized 4" Hot-rolled 30-4 Alum-HRT N/A 4 XTS 30-75 N or LP 75,000 31'-3" 17'-10" 160 # 1' - 0' Aluminized 4" Hot-rolled 30-4 Alum-HRT N/A 4 XTS 30-100 N or LP 100,000 31'-3" 17'-10" 160 # 13' - 3' Aluminized 4" Hot-rolled 30-4 Alum-HRT N/A 5 XTS 40-50 N or LP 50,000 40'-11' '-8" 190 # 11' - 18' Aluminized 4" Hot-rolled 40-4 Alum-HRT N/A XTS 40-60 N or LP 60,000 40'-11' '-8" 190 # 11' - 18' Aluminized 4" Hot-rolled 40-4 Alum-HRT N/A XTS 40-75 N or LP 75,000 40'-11' '-8" 190 # 1' - 0' Aluminized 4" Hot-rolled 40-4 Alum-HRT N/A XTS 40-100 N or LP 100,000 40'-11' '-8" 190 # 13' - 3' Aluminized 4" Hot-rolled 40-4 Alum-HRT N/A 4 XTS 40-15 N or LP 15,000 40'-11' '-8" 190 # 14' - 5' Aluminized 4" Hot-rolled 40-4 Alum-HRT N/A 4 XTS 40-150 N or LP 150,000 40'-11' '-8" 190 # 15' - 7' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT N/A 4 XTS 50-100 N or LP 100,000 50'-7' 7'-6" 35 # 15' - 7' Aluminized 4" Hot-rolled 40-4 Alum-HRT 10-4-HRT XTS 50-15 N or LP 15,000 50'-7' 7'-6" 35 # 15' - 7' Aluminized 4" Hot-rolled 40-4 Alum-HRT 10-4-HRT 4 XTS 50-150 N or LP 150,000 50'-7' 7'-6" 35 # 16' - 30' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 10-4-HRT 4 XTS 50-175 N or LP 175,000 50'-7' 7'-6" 35 # 17' - 35' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 10-4-HRT XTS 50-00 N or LP 00,000 50'-7" 7'-6" 35# 18' - 40' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 10-4-HRT XTS 60-15 N or LP 15,000 60'-3' 3'-4" 65 # 16' - 30' Aluminized 4" Hot-rolled 40-4 Alum-HRT 0-4-HRT XTS 60-150 N or LP 150,000 60'-3' 3'-4" 65 # 17' - 35' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 0-4-HRT XTS 60-175 N or LP 175,000 60'-3' 3'-4" 65 # 17' - 35' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 0-4-HRT XTS 60-00 N or LP 00,000 60'-3' 3'-4" 65 # 18' - 40' Titan/Alum 4" Hot-rolled 40-4 Ti-Al-HRT 0-4-HRT Printed in U.S.A. Detroit Radiant Products Co. 1400 Hoover Rd., arren, MI 48089 T. (586) 756-0950 F. (586) 756-66 Form# LIOXTS-3M-3/04 (LES) Replaces Form# LIOXTS-5M-3/03 affle Pieces
XTS Series V.6/03 arnings and Clearances to Combustibles! ARNIN! T FOR RESIDENTIAL USE! Do not use in the home, sleeping quarters, attached garages, etc.! ARNIN! 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.! ARNIN! 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.! ARNIN! 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.! ARNIN! Failure to comply with the stated clearances to combustibles could result in personal injury, death and/or property damage.! ARNIN! 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. CLEARANCES TO COMUSTILES (IN.) MODEL. MOUNTIN SIDE ANLE FRONT EHIND TOP ELO XTS (0,30,40)-50 [N,P] 0 9 9 6 47 45 39 8 10 47 /1 side shield 0 9 8 6 47 / side shields 0 9 9 6 47 0 ft from burner 0 7 7 6 30 XTS (0,30,40)-60 [N,P] 0 9 9 6 47 45 39 8 10 47 /1 side shield 0 9 8 6 47 / side shields 0 9 9 6 47 0 ft from burner 0 7 7 6 30 XTS (0,30,40)-75 [N,P] 0 9 9 6 60 45 39 8 10 60 /1 side shield 0 9 8 6 60 / side shields 0 9 9 6 60 0 ft from burner 0 7 7 6 30 XTS (0,30,40,50)-100 [N,P] 0 14 14 6 66 45 39 8 10 66 /1 side shield 0 9 8 6 66 / side shields 0 16 16 6 66 0 ft from burner 0 7 7 6 30 XTS (30,40,50,60)-15 [N,P] 0 0 0 6 76 45 58 8 10 76 /1 side shield 0 4 8 6 76 / side shields 0 0 0 6 76 0 ft from burner 0 7 7 6 30 XTS (40,50,60)-150 [N,P] 0 4 4 6 81 45 58 8 10 81 /1 side shield 0 4 8 6 81 / side shields 0 3 3 6 81 0 ft from burner 0 11 11 6 44 XTS (50,60)-175 [N,P] 0 34 34 6 9 45 63 8 10 9 /1 side shield 0 50 8 6 9 / side shields 0 30 30 6 9 0 ft from burner 0 11 11 6 44 XTS (50,60)-00 [N,P] 0 41 41 6 94 45 63 8 10 94 /1 side shield 0 54 8 6 94 / side shields 0 30 30 6 94 0 ft from burner 0 11 11 6 44 SIDE FRONT TOP ELO TOP ELO SIDE EHIND FRONT SIDE TOP ELO TOP ELO EHIND 0º MOUNTIN ANLE 0º /1 SIDE SHIELD SIDE 45º MOUNTIN ANLE 0º / SIDE SHIELDS
XTS Series Mechanical Instructions This supplement is designed to address the specifics of the XTS Series - See page 1 for specific product features. Product Summary XTS Series heaters are available from 0 to 60 foot, 50,000 to 00,000 TU s, natural or LP gas. XTS Series are positive pressure, single stage heaters and feature hot rolled blackened steel for it s radiant pipes. Specific Mechanical Instructions e sure to identify the aluminized (50-15) or titanium (150-00) combustion chamber and place as the first tube section. 150,000-00,000 TU/H models require the aluminized tube to be placed directly following the first tube section. See Tube Installation Sequence chart at the bottom of this page for an illustration. Do not use the hot rolled steel radiant tubing as the first tube (combustion chamber). Note: elded seam must be positioned downward. 175,000-00,000 TU/H Models must be installed with a stainless steel tube clamp at the second joint of the exchanger between the first and second radiant tubes. Note baffle quantities for your model and place baffles in the last tubes (farthest from the burner) as shown below and on pages 13-14 of the generic manual. Tube Installation Sequence Aluminized (50-75 MTU/H) Combustion Chamber Hot-rolled Aluminized (50-100 MTU/H) Combustion Chamber Hot-rolled Aluminized or Titanium (50-15 MTU/H) (150 MTU/H) Combustion Chamber Hot-Rolled or Aluminized (50-15 MTU/H) (150 MTU/H) Aluminized or Titanium (100-15 MTU/H) (150-00 MTU/H) Combustion Chamber Hot-rolled or Aluminized (100-15 MTU/H) (150-00 MTU/H) Aluminized or Titanium (15 MTU/H) (150-00 MTU/H) Combustion Chamber Hot-rolled or Aluminized (15 MTU/H) (150-00 MTU/H) = urner location = affle location 3
XTS Series V.6/03 Electrical Requirements 10 Volt - 60 HZ Starting Current 4.8 Amps Running Current 1.1 Amps as Requirements Manifold Pressure Nat. 3.5 LP. 10.0 Minimum Inlet Pressure Nat. 5.0 LP. 11.0 Maximum Inlet Nat. 14.0 LP. 14.0 Ventilation Requirements Consult the generic supplement for venting instructions and unvented operation. For unvented operation, there must be a positive air displacement of at least 4.0 CFM per 1000 TU/H for natural gas or 4.5 CFM per 1000 TU/H for LP gas. VE- 4 termination cap must also be used. Maximum vent length for all models is 0 ft. Approved & Required Vent Caps Sidewall Single 4 Duravent sidewall vent kit (4-DSK). 4 Vent terminal (SD-4). Sidewall Dual (Sharing common t-stat) 6 Duravent sidewall vent kit (6-DSK). 6 Vent terminal (SD-6). Roof Single Approved 4 rooftop raincap (RVC-4). Theory of Operation Starting Circuit hen voltage is applied to and (see diagram on right), a circuit is completed from via the blower motor to. 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 differential pressure switch to close. Another circuit is completed from to the hot surface ignition control and back to. There is a five second delay, then the glo-bar is powered. After the glo-bar has been powered for 45 seconds, the control 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 Dual (Sharing common t-stat) Approved 6 rooftop raincap (RVC-6). Important: Do not use sidewall caps for roof venting and do not use roof caps for sidewall venting. 4
Internal iring Diagrams Standard iring LADDER DIARAM - MARK17DU-117 LIHTS S-S 10VAC LOER AS VALVE PRESSURE SITCH O R INITOR R PROE SIC1 LINE1 TH VALVE ND INITION MODULE LOCK DIARAM - MARK17DU-117 LIHTS S-S O URNER PRESSURE SITCH INITOR R FLAME ROD 10VAC LOER M C P 1 3 R PROE SIC1 LINE1 TH VALVE ND MARK 17DU-117 INITION MODULE M C P 1 3 OFF AS VALVE 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 105 C. 5
XTS Series V.6/03 Field iring Diagrams T-stat HEATER URNER OX Multiple (if applicable) 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. RD NC COM HEATER URNER OX Multiple (if applicable) HEATER URNER OX Multiple (if applicable) HOT (lack) RAL (hite) HEATER URNER OX Multiple (if applicable) 10V Connection(s) for Single/Multiple Line Voltage Heaters COMMON REQUIRED FOR THEMOSTATS THAT REQUIRE CONSTANT POER. FIELD IRIN FOR INTERNAL RELAY OPTION THE INTERNAL RELAY ALLOS FOR LO VOLTAE T-STAT OPERATION OF LINE VOLTAE HEATERS PANEL ROUND COMMON C N 4v URNER OX ITH INTERNAL RELAY OPTION PANEL ROUND R N 4v URNER OX ITH INTERNAL RELAY OPTION 4v DIITAL T-STAT EXTERNAL TRANSFORMER 4V PANEL ROUND EXTERNAL TRANSFORMER IS NEEDED HEN USIN THE INTERNAL RELAY OPTION. A 40VA TRANSFORMER IS SUFFICIENT TO OPERATE 10 APPLIANCES 10 V N 4v URNER OX ITH INTERNAL RELAY OPTION 10 Volt Power (Observe Polarity) Alternative Field iring Diagram for 4VAO (Internal Relay Option). HITE 4V T-stat 115V TO HEATER RANCH #1 R HITE Common required for thermostats that require constant power. 4V 4V Y OTHERS 115V TO HEATER RANCH # R885 Relay Transformer POLE # POLE #1 R COIL Y C 115V A Transformer Relay is used in conjunction with most low voltage T-stats when wiring tube heaters. TE: The Transformer Relay selected must be able to handle the combined start-up amperage per relay branch. 4V T-Stat & Connection 6
Alternative iring Diagrams For 4VAO (Internal Relay Option), and Retail Super Centers. LOCK DIARAM - MARK17DU-117 ITH LIHTS TERMINAL LOCK O URNER T-STAT TERMINAL 4V 10VAC A C D PRESSURE SITCH INDICATOR LIHTS M C P 1 3 R INITOR PROE SIC1 LINE1 TH VALVE ND R MARK 17DU-117 INITION MODULE FLAME ROD M 1 C LOER OFF P 3 LLT39 AS VALVE 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 105 C. For Obsolete Dual Switch Line Voltage, and 4VAO. LOCK DIARAM - MARK17DU-117 ITH LIHTS TERMINAL LOCK O URNER T-STAT TERMINAL 4V 10VAC A C D PRESSURE SITCH INDICATOR LIHTS M C P 1 3 R INITOR PROE SIC1 LINE1 TH VALVE ND R MARK 17DU-117 INITION MODULE FLAME ROD M 1 C LOER OFF P 3 LLT3 AS VALVE 7
Turn up Thermostat XTS Troubleshooting Flow Chart Does the fan blower turn on? Is the power at the heater 10V? Find the source of the electrical problem. Is the blower obstructed? Remove obstruction & lubricate fan. Is there 10V coming to the fan? Correct wiring. The fan is faulty and must be replaced. Does the ignitor warm up and glow red? Is the ignitor physically damaged? Check voltage at ignitor during the ignition sequence (usually 30-45 seconds after power to heater). Is it 10V? Replace ignitor. Is the resistance through the ignitor 45-400S? ARNIN: y-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. Is the inlet or the outlet of the unit obstructed? ie: ice, birds nest, dirt, etc. Remove obstruction. Temporarily place jumpers across the pressure switch and check for 10V going from switch to circuit board. (e sure to reinstall the cover.) Is there 10V entering the circuit board? Check for loose wiring or restrictions in hose connections to the pressure switch. Are they ok? The heater is equipped with a safety pressure switch. The differential pressure switch in the valve compartment is a normally open switch. Temporarily place jumpers across the terminals of the switch. (e sure to reinstall the cover.) Does the ignitor glow red? Repair wiring or hose connections. Replace the pressure switch after verifying the following: affle(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 0 feet and/or elbows. There is not a negative pressure experienced at the area of air intake (ie: attic space, high-winds, very tight building). Faulty wiring. Repair or replace wiring. Replace circuit board. If any of the previous were occurring, please address the problem. 8
ARNIN: y-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. Possibly, the circuit board and/or wiring harness is faulty. These should be replaced. Test for 10V at valve during valve opening period (usually 30-45 seconds after power to the heater). Is there 10V to valve? After ignitor is warmed up, does gas valve open? Correct problem. Replace gas valve. Check to make sure gas pressure is within minimum and maximum inputs, as indicated on AA burner rating label. Is gas pressure OK? Correct problem. Check to make sure gas pressure is within minimum and maximum inputs, as indicated on AA burner rating label. Is gas pressure OK? Is the gas cock in an ON position? Does the burner light? Make sure gas lines were purged of air. 9 ith voltmeter, check DC voltage at flame rod. Is it greater than 30 Volts DC? Is the heater properly grounded? Is the heater s polarity correct? Does the burner stay on for approx. 8 seconds and then shut off? Does the burner stay on? Correct problem. Does the burner come on and then turn off immediately (1 or seconds). Does heater stay on until call for heat ends? Check to make sure flame sensor wire is OK and 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 AA burner rating label and then replace sensing rod if needed. Correct problem. The pressure switch may be faulty or there is a restriction in the exhaust. Check to make sure that the pressure is within minimum and maximum inputs as indicated on the AA burner rating label. Is gas pressure OK? The following can cause the heater to shut down: Improper grounding High winds Taking combustion air from the attic Dirty environment affle not located properly Fluctuating gas pressure Troubleshooting ends.
XTS Series V.6/03 Parts reakdown Emitter Tube(s) Combustion Chamber 70 40 44 1 31 68A 33 55A 351A 35A 31 08 1 76 09 1304 3 09P 04 401 PS 00A 01 18 403 1 5 17 19 17 0 05 50 106 9 10 105 0C 1 8 0 1 11 1 6A 6 65I 6C 10
asic Parts List XTS SERIES PARTS LISTIN TP# ITEM TP# ITEM TP-1 CONTROL OX COVER TP-00A URNER (50 TO 100 MTU/H) TP-5 FLANE ASKET TP-01 URNER (15 TO 00 MTU/H) TP-9 CONDUIT COUPLIN TP-0 16'' URNER TUE ITH FLANE TP-10 CONDUIT 4" X 1/" TP-04 AS ORIFICE - CONSULT FACTORY TP-11 LO-AR INITOR OX TP-05 LO-AR HOLDER TP-1 LO-AR INITOR OX COVER TP-08 "Z" MOUNTIN RACKET TP-17 SIHT LASS KIT TP-09 36E36A-46 AS VALVE - NAT AS ASSY TP-19 IRE HANER / SPRIN CLIP TP-09P 36E36A-40 AS VALVE - LP AS ASSY TP-0C 10" ALUMINUM REFLECTOR TP-1 1/" X 3" PIPE NIPPLE TP-0D 10" STAINLESS STEEL REFLECTOR TP-17 PRESSURE AR FITTIN TP-1 4" TUE CLAMP TP-18 EXHAUST PRESSURE SENSE TUE (VINYL) TP-6A 10 FT. ALUM. RADIANT/COMUSTION TUE TP-0 4" STAINLESS STEEL UTT CLAMP TP-6 10 FT. TITANIUM COMUSTION TUE TP-1 LO-AR HOLDER ASKET TP-6C 10FT. UNCOATED HOT ROLLED RADIANT TUE TP- FLAME ROD TP-31 CONTROL OX RACKET TP-3 AS MANIFOLD TP-33 1/" AS COCK TP-330 DIVIDER ROMMET TP-44 AIR ORIFICE /SCREEN - CONSULT FACTORY TP-331 REEN SELF TAP ROUND SCRE TP-50 LO-AR INITOR TP-351A MARK 17-DU POTTED OARD TP-55A FAN LOER TP-35A IRE HARNESS FOR TP-351A TP-65I INTERLOCKIN 33" AFFLE SECTION TP-401 DIVIDER PANEL TP-66 " X 4" OUTLET OX TP-40 LEFT END PANEL TP-67 " X 4" OUTLET OX COVER TP-403 RIHT END PANEL TP-68A STRAIN RELIEF USHIN TP-404 CONTROL OX TP-70 CONTROL OX COVER ASKET (PER FOOT) TP-PS N.O. Pressure Switch (Select switch below TU Dependent) TP-76 RUER ROMMET (TP-64) DIFFERENTIAL PRESSURE SITCH - 50 TO 100 MTU/H TP-8 REFLECTOR CENTER SUPPORT (TP-64E) DIFFERENTIAL PRESSURE SITCH - 15 TO 150 MTU/H TP-105 REFLECTOR END CAP (TP-64D) DIFFERENTIAL PRESSURE SITCH - 175 MTU/H TP-106 REFLECTOR CLIP (TP-64F) DIFFERENTIAL PRESSURE SITCH - 00 MTU/H TP-111 5' ALUM. TUE, PAINTED ITH ONE CLAMP TP-11 5' REFLECTOR TP-1 ASKET FOR AIR ORIFICE & AIR COLLAR 6 TOTAL NEEDED TO COVER OUTER EDES OF A URNER OX (TP-70). 11
KIT CONTENTS AND PRODUCT FEATURES Kit contents for the XTS Series are shown below. Reference the proper column for your particular models length. FILLED Y: XTS SERIES KIT CONTENTS TP# DESCRIPTION 0 FOOT 30 FOOT 40 FOOT 50 FOOT 60 FOOT 70 FOOT TP-19 4" Hangers 3 4 5 6 7 N/A TP-1 4" Tube Clamps 3 4 5 6 N/A TP-33 1/" as Cock 1^ 1^ 1^ 1^ 1^ N/A TP-8 4" Refl. Cntr. Sprt. 1 1 1 1 1 N/A TP-105 Refl. Endcaps N/A TP-106 Refl. Endcap Clips 8 8 8 8 8 N/A IOM Install / Op Manual 1 1 1 1 1 N/A XTS SERIES ag of 4 Reflector Reflector 4 Hanger 4 utt Clamp as Cock 4 Reflector Center endcap clips End Caps TP-19 TP-1 1/ TP-33 Support - TP-8 TP- 106 TP-105 TES: ^as cock is installed onto heater at the factory. One 4 stainless steel butt clamp is provided for each 175,000 & 00,000 TU model. Place as shown in IOM. eneric IOM (LIOT) AND Series Insert (LIOXTS) Product Features APPROVALS IAS, CSA, AA. Commercial approval. URNER SIHT LASS For burner inspection. COMUSTION AIR INLET & VENT 4 Male duct. ENAMELED CONTROL OX Outside air collar (4 ) attached. Totally enclosed components. AS CONNECTION 1/ gas cock attached. CONTROLS 100% safety shut off. Moisture and corrosion resistant ignition module. Differential pressure sensing switch. Silicon carbide hot surface igniter. Flame rod sensing. Pre-purge controls. EMMITER & COMUSTION TUES 16ga. 4 O.D. hot rolled steel radiant tubes. Coated aluminized combustion chamber (50-15 MTU/H models). Coated titanium combustion chamber (150-00 MTU/H models). RADIANT SURFACE AREA (SQ. FT.) 0 models - 0. 50 models - 50.6 30 models - 30.4 60 models - 60.7 40 models - 40.5 ARRANTY 1 year - urner 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 heater. Turbulator baffle included. Made in U.S.A. Visit www.reverberray.com TF1 Package & REP Packages Optional TF1 allows for configuration into a U-shaped heater. Please consult TF1 Spec. Sheet for details. Optional Reflector and 90 o elbow Package (REP) are used for L shaped system. Please consult accessory list and eneral Manual for further information. 1