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Series LTA/LTX/LTXR Infrared Heater
Installation, Operation and Service Instructions
FOR YOUR SAFETY
If you smell gas:
1. Open windows
2. Don't touch electrical switches
3. Extinguish any open flame
4. Immediately call your gas supplier
CONSIGNES DE SECURITE
Si vous sentez une odeur de gaz:
1. Ouvrez les fenetres
2. Ne touchez pas aux interupteurs
electriques
3. Eteignez tout flamme nue
4. Contactez immediatment votre
fournisseur de gaz
Read and thoroughly understand these Instructions before attempting any installation.
Improper installation, adjustment, alteration, service or maintenance can cause injury, death or property
damage. Read the installation, operation and service instructions thoroughly before installing or servicing
Retain this Manual for reference.
this equipment.
23-428 Millen Road, Stoney Creek, Ontario L8E 3N9
www.superiorradiant.com
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
CONSIGNES DE SECURITE
Il est interdit d'utiliser des liquides
inflammables ou degageant des vapeurs
inflammables, a proximites de tout appareil
Installer
Owner
WARNING
FOR YOUR SAFETY
fonctionnent au gaz.
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Summary of Contents for Superior Radiant LTA Series
- Page 1 Series LTA/LTX/LTXR Infrared Heater Installation, Operation and Service Instructions FOR YOUR SAFETY FOR YOUR SAFETY If you smell gas: Do not store or use gasoline or other 1. Open windows flammable vapors and liquids in the 2. Don’t touch electrical switches vicinity of this or any other appliance.
- Page 2 CAUTION: FIRE OR EXPLOSION HAZARD Maintain clearance to combustible constructions as further specified in this manual. Failure to do so could result in a serious fire hazard. Heaters should not be located in hazardous atmospheres containing flammable vapors or combustible dusts. Signs should be provided in storage areas specifying maximum safe stacking height.
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Page 3: Table Of Contents
Table of Content INTRODUCTION.................................. 4 .................................. 4 NSTALLATION ODES General Installation and Gas Codes ............................ 4 Aircraft Hangar Installation .............................. 4 Public Garage Installation .............................. 4 Parking Structures................................. 4 Gas Supply Lines ................................... 5 Electrical .................................... 5 Venting .................................... 5 GENERAL SPECIFICATIONS .............................. 6 .................................... 6 AS UPPLY Inlet Pressure .................................. 6 Manifold Pressure ................................. 6 ... -
Page 4: Introduction
Superior Radiant offers its 15 years of infrared expertise in a cost effective unitary heater design as culmination of that commitment. Series LTA/LTX/LTXR models are field assembled, low intensity infrared heaters that are easy to install and maintain, and which were engineered with significant input from our customers. -
Page 5: Gas Supply Lines
Introduction Gas Supply Lines Gas supply pipe sizing must be in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 in the US and CAN/CGA B149.1 and B149.2 Installation Codes in Canada. A 1/8" inch NPT plugged tap must be installed in the gas line connection immediately upstream of the burner farthest from the gas supply meter to allow checking of system gas pressure. -
Page 6: General Specifications
General Specifications General Specifications Gas Supply Inlet Pressure Natural Gas: Minimum 5.0" W.C. Propane Gas: Minimum 11.5" W.C. Maximum 14.0" W.C. Maximum 14.0" W.C. Manifold Pressure Natural Gas: 3.5" W.C. (High Rate) Propane Gas: 10.5" W.C. 2.4" W.C. (Low Rate) 6.2"... -
Page 7: Dimensional Charts
Dimensional Charts 18" 6" 16" 24" 14" 36" 12" 15" 12" 10' - 4" 9" Figure 1: Overall Dimensional Information ELBOW BAFFLE SECTION 16" WHEN INSTALLING, ORIENT BAND CLAMP LOCK BOLTS TO TOP, AT 10 O'CLOCK OR 2 O'CLOCK POSITION 4', 6' OR 8' COUPLING REFLECTOR... -
Page 8: Configurations
Configurations Heat Exchanger Length High Rate Low Rate Baffle (ft.) Model (BTU/Hr) (BTU/Hr) Length (ft.) Minimum Maximum LTA/LTX/LTXR-40 40,000 30,000 LTA/LTX/LTXR-60 60,000 45,000 LTA/LTX/LTXR-80 80,000 60,000 LTA/LTX/LTXR-100 100,000 75,000 Three 4’ lengths Table 1: Configuration Information Note: Baffles are always placed in the last section of radiant tube except for the 100,000 BTU Burner. Baffles are either aluminized or stainless steel sections 6 ft. -
Page 9: Clearance To Combustibles
Clearance to Combustibles A general clearance of 18” (0.5 m) in every direction is recommended for servicing only around each Burner, Vacuum Pump, and End Vent Cap air supply (at the far end of each Radiant Branch) also to ensure adequate air flow in and around the Heating System. In addition to this it is very important to observe the minimum clearance to combustibles at all times to avoid any possibility of property damage or personal injury. - Page 10 Clearance to Combustibles Table 2: Minimum Clearance to Combustibles Model No.: LTA/LTX/LTXR Reflector Configurations Horizontal 2" 2" 2" 2" 4" 4" 4" 6" 31" 31" 31" 36" 4" 4" 4" 6" 45° Reflector Tilt 3" 3" 3" 4" 3" 3" 3"...
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Page 11: Installation
Installation Installation Sequence Generally, there is no unique sequence for installation of the burner or heat exchanger. A review of the job site will usually indicate a logical installation order. However, time and expense can be saved if installation is begun at the most critical dimension, watching for interference from overhead doors, cranes, auto lifts etc. - Page 12 Installation Figure 5: Installation Configuration for 80,000 BTU Model Series LTA/LTX/LTXR Page 12 Nov./21/12...
- Page 13 Installation Figure 6: Installation Configuration for 80,000 BTU Model Series LTA/LTX/LTXR Page 13 Nov./21/12...
- Page 14 Installation A general ordered sequence for installation is provided below for reference. Reflector End Cap Reflector Support Reflector Overlap Loose Approx. 8" Screws Vent Adapter Fasten Endcap Tight Bend Tab with Screws Screws over End Install Baffle of Tube as required in last section Loose of tube...
- Page 15 Installation Truss I-Beam Concrete Beam I-Beam Eye Bolt 12" Anchor Min. Beam Clamp 24" Min. Note: Close all "S" Hooks, 12" Turnbuckles, "J" Bolts. 3/8" Min. Threaded Turnbuckle "S" Hook Figure 8: Suspension Mechanism • Install the tube and reflector support hanger on the chain with “S-hooks” refer to Figure 8 & Figure 9.
- Page 16 Installation NSTALLATION • Always use all the hangers supplied. As a rule the combustion tube (first tube) utilizes 2 hangers and thereafter 1 hanger per 10' section. It is required that the first hanging point be 2" to 8" from the burner mounting flange, and tube weld seam must face down, refer to Figure 10 for more details.
- Page 17 Installation • Tighten the cradle loops of the first hanger with the “J-Bolt” found in the burner box, to snugly hold the combustion tube from rotating see Figure 12. Note: For all coupling joints, ensure that the tube joint is in the center of the coupling length, and that the overlap joint of the coupling is above the centerline of the tube.
- Page 18 Installation EATER AND AFFLE NSTALLATION • Locate the burner gasket provided, bolt the burner in place on the tube flange with provided hardware. Burner must never be installed in a tilted position. The sense electrode of the burner cup should be in the 12 o’clock position (Figure 13). Note: Tube Burner MUST NEVER...
- Page 19 Installation • A general overall view of the tubes and reflector hangers are shown in Figure below Locate Tube and Reflector Hangers every 10' thereafter. 10' Tube *Note: (30' system shown Vent here, the same principle Adapter should be followed for 40', 50' systems or more) Bend Tab Refer to Installation Sequence...
- Page 20 Installation EFLECTOR NSTALLATION • Slide a reflector section into place within the support hanger, (Figure 16). Slide Reflector through the Hanger and Reflector Support as shown. Figure 16: Reflector Installation • Install reflector support brackets, one at each reflector overlap position, and one in the middle of each 10' foot reflector length.
- Page 21 Installation Note: Reflectors should overlap adjacent reflectors 4" to 6" inches. Be sure not to tile reflector sections; that is, reflector sections must be either above both adjacent reflector sections, or below both adjacent reflector sections. Refer to Figure 18. Reflector Support Reflector Overlap...
- Page 22 Installation • Secure every second reflector overlap together with a minimum of 2 - #8 x 3/8" inch long screws (not supplied), and secure reflector to the reflector bracket at this point by tightening down #8 x 1¼" inch screws supplied with reflector brackets (Figure 19). The remaining reflector overlap joints and reflector brackets are left loose to accommodate system movement.
- Page 23 Installation “U-T ” I LBOW AND NSTALLATION • If required by the heater layout, install 90° elbows or U-tube where indicated. Refer to Figure 21 for details. Note: Elbows or U-bends are typically installed without reflectors. To reduce the above clearance to combustibles distance use miter reflectors (see Figure 22) and refer to Clearance to Combustibles information.
- Page 24 Installation ITERED EFLECTOR NSTALLATION • If used, install the Mitered Reflector as shown below (Figure 22). Assemble Corner Bracket to Mitered Reflectors as shown Fasten Mitered Reflectors with 4 #8 x 3/8" Screws Mitered Reflector Sections should overlap standard Reflectors. Figure 22: Mitered Reflector Installation Series LTA/LTX/LTXR Page 24...
- Page 25 Installation & B EFLECTORS OTTOM HIELDS • If used, install side shields (reflectors) and/or bottom shield as required. Refer to Figure 23 and Figure 24 for details. • Side shields are 124" inches long. Fasten one side shield per reflector with #8 x 3/8" inch screws. Use three side shield brackets per side shield.
- Page 26 Installation OTTOM HIELD EFLECTOR NSTALLATION • Bottom shields need not overlap. Each 5' feet section is held with two support brackets (see Figure 24). Tighten Screw Tubing Section #8 x 3/8" screws Support Bracket Bottom Shield Figure 24: Bottom Shield Installation Series LTA/LTX/LTXR Page 26 Nov./21/12...
- Page 27 Installation RILLE PTIONAL Series LTA/LTX/LTXR heaters are approved for the addition of Deco-Grille either directly to the heater reflector or as part of a T-Bar installation where the heater is above the ceiling structure. Refer to Figure 25 and Figure 26 below for details. Deco-Grille Panel Reflector Deco-Grille Cross Strap...
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Page 28: Venting / Combustion Air Ducting
Venting / Combustion Air Ducting General Requirements • Refer to the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) in the US and CAN/CGA B149.1 and B149.2 Installation Codes in Canada, as well as all local requirements for general venting guidance. -
Page 29: Vented Operation
Venting / Combustion Air Ducting Vented Operation In all cases, be sure vent pipes and outside air supply ducts are sealed with approved sealant, such as high temperature RTV silicone. Double wall venting (B vent) may not require sealant. Horizontal Venting •... -
Page 30: Common Horizontal Venting
Venting / Combustion Air Ducting SINGLE HEATER MULTIPLE HEATERS FOR VERTICAL VENTING REFER TO ANSI Z223.1 AND CAN/CGA B149.1 FOR VERTICAL VENTING REFER TO AND B149.2 FOR FAN ASSISTED ANSI Z223.1 AND CAN/CGA B149.1 APPLIANCES. AND B149.2 FOR FAN ASSISTED TYPE B-VENT APPLIANCES. -
Page 31: Combustion Air Supply (Optional)
Venting / Combustion Air Ducting Combustion Air Supply (Optional) • An outside combustion air supply is strongly recommended if the building space encloses a negative pressure due to exhaust etc. or if the building contains materials which would expose the heater to halogenated hydrocarbon atmospheres. -
Page 32: Outdoor Installation
Outdoor Installation (LTXR M UTDOOR NSTALLATION ODELS When a heater is to be mounted outdoors it must be installed in such a way that wind will have minimum effect on its movement. This consideration is intended to eliminate undue stress on the gas flex connector. In all cases a fresh air hood must be used in conjunction with a vent terminal of the approved type, and all connections must be sealed with a high temperature sealant that can withstand 400°F. -
Page 33: Gas Piping
Gas Piping General Requirements • The gas meter and service must be sufficiently large to supply gas to the connected building gas load including the heating equipment and any other gas fired equipment. Additionally, the gas distribution piping must be designed according to local and national ordinances. Generally (low pressure) systems designed with a maximum ½"... -
Page 34: Electrical Wiring
Electrical Wiring General Requirements Heaters are normally controlled by line voltage or low voltage (24V) thermostats. Line voltage thermostats are wired directly while low voltage thermostats use a relay. In all cases, heaters must be grounded in accordance with the National Electric Code, ANSI/NFPA 70 in the US, and the Canadian Electric Code, CSA C22.1 in Canada, and must comply with all local requirements. - Page 35 Electrical Wiring LTXR Models only The following wiring diagram is for LTXR models ONLY. 24V Thermostat is Mounted Externally STAT Hi Fire Lamp Yellow Green SWITCH Channel Module 53X-24 BLOWER Yellow Brown Low Fire Lamp 120V 120V Orange 120L Black Green Blue Yellow...
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Page 36: Burner Operation
Burner Operation Starting Sequence of Operation • Turn the thermostat up. When the thermostat calls for heat, the blower motor will energize. • When the motor approaches nominal running RPM, the air-proving switch closes and activates the ignition module. • The ignition module, after a pre-purge period of approximately 30 seconds, energizes the igniter. Additionally, the gas valve is energized for this ignition trial period of 15 seconds. -
Page 37: Troubleshooting
Troubleshooting Blower Motor Fails to Run • Is the thermostat calling for heat? Is there 115V at the burner receptacle? • Check blower side door for seal. Repair as necessary. • Check blower for obstructions. Replace blower if necessary. No Gas Supply •... -
Page 38: Troubleshooting Chart
Troubleshooting Chart Troubleshooting Chart Series LTA/LTX/LTXR Page 38 Nov./21/12... -
Page 39: Replacement Parts
Replacement Parts ITEM # PART # DESCRIPTION ITEM # PART # DESCRIPTION CE057 INDICATOR LIGHT LG004 BURNER CUP BURNER CUP ASSEMBLY (C/W ELECTRODES) CE015 IGNITION MODULE LG005 CG056 WHITE ROGERS - NAT. GAS CH011 SIGHT GLASS ASSEMBLY CG070 WHITE ROGERS - LPG. CE025 AIR SWITCH - MODELS LTA/LTX/LTXR - 40,000 BTU CE058... -
Page 40: Warranty
Warranty SERIES LTA, LTX, and LTXR INFRARED HEATERS WARRANTY The manufacturer warrants to the original owner that the product will be free of defects in material and workmanship as described below. Warranty Period Series Component Years Years Years Years Burner & Controls Hot Rolled Heat Exchanger w/o Post Purge Aluminized Heat Exchanger w/o Post Purge Hot Rolled Heat Exchanger with Post Purge...
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