Brant Radiant Heaters DX2 Series Manual
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Brant Radiant Heaters DX2 Series Manual

Gas-fired infrared tube heater
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Brant Radiant Heaters, Ltd.
DX2 Series
Gas-Fired Infrared Tube Heater
WARNING: 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.
AVERTISSEMENT: Une installation, un réglage, une modification, une
réparation ou un entretien incorrect peut entraîner des dommages matériel,
des blessures ou la mort. lisez attentivement les instructions d'installation,
de fonctionnement et d'entretien avant de procéder à l'installation ou à
l'entretien de cet équipement.
This heater must be installed and serviced by trained gas installation and service personnel only.
Failure to comply could result in personal injury, asphyxiation, death, fire or property damage.
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.
Not for residential use! Do not use this heater in the home, sleeping quarters, attached
garages, etc. Installation of a commercial tube heater system in residential indoor spaces
may result in property damage, serious injury, asphyxiation or death.
Cet appareil de chauffage doit être installé et entretenu par l'installation à gaz formée et le personnel de
service seulement. L'échec de se soumettre pourrait aboutir à la blessure personnelle, l'asphyxie, la mort,
le feu ou des dégâts de propriété.
Dans des emplacements utilisés pour le stockage de matériels combustibles, les signes doivent être
postés pour spécifier la hauteur d'entassement permise maximale pour maintenir les dégagements exigés
de l'appareil de chauffage au combustibles. Les signes doivent ou être postés adjacents aux thermostats
d'appareil de chauffage ou en absence de tels thermostats, dans un emplacement remarquable.
Pas pour utilisation résidentielle! N'utilisez pas cet appareil de chauffage dans la maison, des
chambres à coucher, des garages attachés, etc. L'installation d'un système d'appareil de chauffage
de tube commercial dans des espaces intérieurs résidentiels peut aboutir aux dégâts de
propriété, la blessure grave, l'asphyxie ou la mort.
For Your Safety
If you smell gas:
• Open windows.
• Do not touch electrical switches.
• Extinguish any open flame.
• Do not try to light any appliances.
• Immediately call your gas supplier from a
neighbours phone.
INSTALLER: Present this manual to the end user.
Model#:
WARNING
!
AVERTISSEMENT
!
Keep these instructions in a clean and dry place for future reference.
Serial #:
(located on rating label)
Pour Votre Sécurité
Si vous sentez le gaz:
• Fenêtres ouvertes.
• Ne touchez pas d'échanges électriques.
• Éteignez n'importe quelle flamme ouverte.
• N'essayez pas d'éclairer d'appareils.
• Appelez immédiatement votre fournisseur de gaz
d'a les voisins téléphonent.
LIODX2-REV-05-23

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Summary of Contents for Brant Radiant Heaters DX2 Series

  • Page 1 Brant Radiant Heaters, Ltd. DX2 Series Gas-Fired Infrared Tube Heater WARNING: 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. AVERTISSEMENT: Une installation, un réglage, une modification, une réparation ou un entretien incorrect peut entraîner des dommages matériel,...

  • Page 2: Table Of Contents

    Series Contents 1.0 Introduction ..............3 Overview .

  • Page 3: Introduction

    Refer to the last page for a list of the kit contents for your model heater. Materials not included in the heater kit contents (e.g., screws, vent material, terminals, etc.) are the responsibility of the installer. Notify your product representative or Brant Radiant Heaters Ltd. of any discrepancy or missing kit contents prior to installing unit.

  • Page 4: Product Specifications

    Introduction • Series Product Specifications Product Specifications Chart 1.1 • DX2 Series Specifications DX2-20-50 N or P 50,000 21’-8” 13’-0” 9’ to 15’ Alum Alum 20.2 DX2-20-60 N or P 60,000 21’-8” 13’-0” 10’ to 15’ Alum Alum 20.2 DX2-20-75...

  • Page 5: Safety

    Series Safety • • Warning Symbols Applications Safety WARNING This heater must be installed and serviced by a trained gas installation and service personnel only! Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury or death. Read and understand the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.

  • Page 6: Safety Labels And Their Locations

    ANSI Z83.20b - 2011 CSA 2.32b - 2011 Low - Intensity Infrared Htr. - 120V HEATER INPUT - FOR INDOOR USE ANS Z83.20b - 2011 CSA - 2011 Low - Intensity Infrared Htr. BRANT RADIANT HEATERS LIMITED SERIAL NO. 0 DEGREES 34 SCOTT AVE., PARIS, ONTARIO #19 D.M.S...
  • Page 7 Series Safety • Safety Labels and Their Locations PRESSURE VALVE SWITCH Operational Indicator Lights F/N: LLV3EP6 PRESSURE VALVE SWITCH Left Panel (Fan Compartment) Primary Combustion Radiant 16” Burner Tube Chamber Tube(s) F/N: LLTB026 Yellow Titanium Alloy Tag (150,000 BTU/H models and greater) Lighting /Shut Down Instructions Label...

  • Page 8: Standards, Certifications And Government Regulations

    Safety • Series Standards, Certifications and Government Regulations Standards, Certifications and Government Regulations Installation of this tube heater must comply with all applicable local, state and national specifications, regulations and building codes. Contact the local building inspector and/or fire marshal for guidance. In the absence of local codes, the installation must conform to the latest edition of: United States: National Fuel Gas Code, ANSI Z223.1 (NFPA 54).
  • Page 9 Series Safety • Standards, Certifications and Government Regulations Chart 2.2 • Standards and Code Installation Guidelines • Building Location Building Guidelines Location Guidelines: High Altitude Installation of this tube heater is approved, without modifications, for elevations up to 6,000 feet (1,829 m) MSL (sea level) in the United States. Contact the factory for installations above these elevations.

  • Page 10: Clearances To Combustibles

    CSA 2.34 require you to post a sign “specifying the maximum permissible stacking height to maintain the required clearances from the heater to the combustibles” near the heaters thermostat or, in absence of such thermostats, in a conspicuous location. Contact Brant Radiant Heaters Ltd. or an authorized dealer for Clearance Safety Limit Signs(P/N: BR-SIGN).
  • Page 11 Series Safety • Clearances to Combustibles When installing the tube heating system, the minimum clearances to combustibles for your model tube heater and system configuration must be maintained. Refer to Chart 2.4 below to determine the required distances for your model. Chart 2.4 •...

  • Page 12: Installation

    Installation Series • Design Considerations and Prechecks Installation WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury or death. Read and understand the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment. Only trained, qualified gas installation and service personnel may install or service this equipment.
  • Page 13 Series Installation • Design Considerations When heated, materials high in hydrocarbons (solvents, paint thinner, mineral spirits, formaldehydes, etc.) can evaporate. This may result in odors or fumes being emitted into the environment. To correct this problem, clean the area and/or introduce additional ventilation. The heaters themselves, when installed and serviced in accordance with the installation manual, do not emit foul odors into the environment.

  • Page 14: Recommended Mounting Heights And Coverages

    Factory recommended mounting heights are listed as a guideline. If infrared heaters are mounted too low or too high, they may result in discomfort or lack of heat. Brant Radiant Heaters Ltd. generally recommends observing the recommended mounting heights to optimize comfort conditions. However, certain applications such as spot heating, freeze protection, outdoor patio heating or very high ceilings may result in the heaters being mounted outside of the factory recommended mounting heights.

  • Page 15: Hanger Placement And Suspension

    Series Installation • Hanger Placement and Suspension Hanger Placement and Suspension WARNING Improper suspension of the tube heater may result in collapse and being crushed. Always suspend from a permanent part of the building structure that can evenly support the total force and weight of the heater. Failure to maintain minimum clearances to combustibles may result in fire and/or explosion, property damage, serious injury or death.
  • Page 16 Installation Series • Hanger Placement and Suspension Figure 3.4 • Heater Mounting Layout Suspension Point NOTE: A label identifying the combustion chamber(s) is located on the swaged end of the tube(s). Suspension Point Radiant Emitter Tube(s) Suspension Point Burner Control Box Radiant Emitter Suspension Points Tube(s)
  • Page 17 Series Installation • Hanger Placement and Suspension Prepare mounting surface, if necessary weld blocks, drill holes (see figure 3.5). NOTE: The burner control box and radiant tubes should be in straight alignment and level. Fasten beam clamp, screw hook or other type of suspension anchor to hanging point. IF USING CHAINS: Attach and close S-hook (P/N: S-HOOK) and #1 double-loop chain (P/N: THCS) to anchor.
  • Page 18 Installation Series • Hanger Placement and Suspension Figure 3.6 • U-Tube Hanger Mounting Options Single Mounting Bracket Brass Knuckle Exhaust U-Tubes can be mounted from a single suspension U-Tubes can be mounted at a point using a Single Mounting Bracket (P/N: SMB) 15, 30 or 45 degree angle with two with five S-hooks and #1 double-loop chains.

  • Page 19: Radiant Tube Assembly

    Series Installation • Radiant Tube Assembly Radiant Tube Assembly To install the radiant tubes: Place tubes in hangers with the welded seam facing downward and the swaged end of the tube towards the exhaust end of the heater system (see figure 3.8). Refer to page 26 for tube installation sequence.

  • Page 20: Optional Elbow Or U-Bend Accessory Configuration

    Installation Series • Radiant Tube Assembly • Optional Elbow or U-Bend Accessory Configuration Slip-fit the radiant tube sections together until tightly connected (install the swaged end of each tube towards exhaust end). NOTE: If it is difficult to mate the tubes, they may be installed incorrectly. Center tube clamps over the seam where two radiant tube sections connect.
  • Page 21 Series Installation • Optional Elbow or U-Bend Accessory Configuration Figure 3.12 • Elbow and U-Bend Clearances Elbow can be set in both directions Dimension A Tube Clamp Tube Clamp U-Bend can be set in both directions Dimension A Tube Clamp 12”...

  • Page 22: Burner Control Box Suspension

    Installation Series • Burner Control Box Suspension Burner Control Box Suspension Suspending the burner control box must be done in accordance with applicable codes listed in the Safety section and these instructions. The burner control box must be in straight alignment with all radiant tubes and level. Contact your local distributor or the factory to see if your application allows for the rotation of the burner control box.

  • Page 23: Reflector Assembly

    Series Installation • Reflector Assembly Reflector Assembly To install the reflectors (see figure 3.16): Attach the reflector center supports onto radiant tubes. Slide each reflector section through the hangers and adjust the reflector tension spring into the V-groove on the top of the reflector. The reflectors should overlap approximately 4 inches. To prevent the reflectors from shifting, secure the reflector sections together using sheet metal screws, except at the expansion joint (see Chart 3.6).
  • Page 24 Installation Series • Reflector Assembly Chart 3.5 • Common Optional Accessories Reflector Accessory Description Part Number 90° bend, highly polished aluminum reflector elbow Elbow Reflector* designed to fit atop one elbow accessory fitting. 180° bend, highly polished aluminum reflector U-Reflector* U-bend designed to fit atop one U-bend accessory fitting.Reference figure 3.6 Highly polished side shield extension used to direct...

  • Page 25: Baffle Assembly And Placement

    Series Installation • Baffle Assembly and Placement Baffle Assembly and Placement Different models and inputs utilize specific baffle lengths. Remove all enclosed baffle sections from box and retain with applicable heater. Reference shipping label for proper baffle size. To assemble the baffles: NOTE: Baffles may be inserted into the tube while being assembled. Determine the number of baffles needed for your model number.

  • Page 26: Final Heater Assembly

    Installation Series • Final Heater Assembly Final Heater Assembly Chart 3.6 Tube Installation Sequence, Baffle Location and Secured Joints for Reflectors NOTE: When securing joints on reflectors which are rotated on an angle from horizontal, secure joint only on top side of reflector to allow for sufficient heater expansion and contraction.

  • Page 27: Venting

    Series Installation • Venting Venting The heating system must be vented as described here to properly direct flue gases from the unit to the outside atmosphere. The venting can terminate vertically through the roof (up) or horizontally through a sidewall (sideways). Follow these guidelines and all applicable codes for all models prior to installing the vent material.
  • Page 28 General Venting Requirements General Venting Requirements The venting system for DX2 Series heaters may terminate horizontally through a sidewall or vertically through the roof, and may be individually or commonly vented. Configuration of the vent termination determines the category type. All model heaters must be installed in accordance to the requirements of this section, as well as the requirements of its category determination, as described in this manual.
  • Page 29 Installation Series • Vertical Venting (Category I) When possible, avoid venting through an unconditioned space. Venting through an unconditioned space promotes condensation. When venting through an unconditioned space is unavoidable, or if the unit is installed in an area that is prone to condensation, insulate venting runs greater than 5 feet to minimize the production of condensation.
  • Page 30 Series Installation • Vertical Venting (Category I) Figure 3.21 • Rooftop Venting - Side View Vent Cap 24 in. Min.* Roof* Storm Collar Adjustable Roof Flashing Double-Wall B Vent 1 in. Minimum Clearance - Use Attic Insulation Shield (Field Supplied) Fire Stop Spacer Heater B to C Adapter...
  • Page 31 Series Installation • Horizontal Venting (Category III) Horizontal Venting (Category III) An appliance that operates with a positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent is said to be “Category III”. The heater is considered a Category III appliance if the venting system meets all of the following criteria: •...
  • Page 32 Installation • Series Horizontal Venting (Category III) Vent Locations and Clearances: • Vent must terminate a minimum of 4 feet below, 4 feet horizontally from, or 1 foot above any window or door that may be opened or gravity air inlet into the building. •...
  • Page 33 Series Installation • Common Venting (Category I) Common Venting (Category I) The common vent system and all attached appliances must be Category I and must be on the same control device. The vent connector should be routed in the most direct route from the units to the common vent. Where two or more vent connectors enter a common gas vent or chimney flue, the smaller connector shall enter at the highest level consistent with the available head room or clearance to combustible material.
  • Page 34 Installation Series • Common Venting (Category III) Common Venting (Category III) • A staggered arrangement or a dual exhaust assembly (P/N: Y) must be used when joining two heaters to a common vent so that by-products of one heater do not flow into the adjoining vent of the other heater.

  • Page 35: Optional Unvented Operation

    Series Installation • Optional Unvented Operation • Combustion Air Requirements Optional Unvented Operation WARNING Not for residential use. The use of unvented tube heaters in residential indoor spaces may result in property damage, serious injury or death. Use unvented operation in commercial and industrial installations with proper ventilation rates only.
  • Page 36 Installation Series • Combustion Air Requirements Non-contaminated outside air for combustion must be ducted to the heater if any of the following apply: • Chemicals such as chlorinated or fluorinated hydrocarbons (typical sources are refrigerants, solvents, adhesives, degreasers, paints, paint removers, lubricants, pesticides, etc.). •...

  • Page 37: Gas Supply

    Series Installation • • Combustion Air Requirements Gas Supply Guidelines: Chart 3.7 • Limitations for Length and Size of Combustion Air Intake Duct Single Heater Intake Dual Heater Intake Air Intake Duct Size Max. Intake Length Duct Size Max. Intake Length 4 in.
  • Page 38 Installation Series • Gas Supply • Test and confirm that inlet pressures are correct. Refer to the heater rating plate for gas type and the required minimum and maximum pressures (see Chart 3.8). The gas supply pipe must be of sufficient size to provide the required capacity and inlet pressure to the heater (if necessary, consult the local gas company).
  • Page 39 The DX2 Series heater is equipped to connect to the Type 1 rubber gas connector (Included). Do not connect the main gas line directly to the heaters gas inlet without the use of the flexible connector.
  • Page 40 Installation Series • Gas Supply When connecting piping to the unit, the use of a thread joint compound is required. The thread compound (pipe dope) shall be resistant to the action of propane gas or any other chemical constituents of the gas to be conducted through piping.
  • Page 41 Series Installation • Gas Supply WARNING Testing for gas leaks with an open flame or other sources of ignition may lead to a fire or explosion and cause serious injury or death. Test in accordance with NFPA or local codes. Figure 3.31 •...
  • Page 42 Series This page intentionally left blank.

  • Page 43: Leak Testing

    Installation Series • Leak Testing Leak Testing WARNING Testing for gas leaks with an open flame or other sources of ignition may lead to a fire or explosion and cause serious injury or death. Test in accordance with NFPA or local codes. WARNING Gas pressures to the appliance controls must never exceed 14 inches W.C.

  • Page 44: Electrical Requirements

    Line polarity must be observed when making field connections. NOTICE The DX2 series comes standard requiring a 120 VAC connection to the thermostat. An optional 24 VAC internal relay (24VAOX) may be factory installed if the heater is to be controlled via a 24 VAC thermostat.

  • Page 45: Thermostat

    NOTE: Different thermostats operate according to their particular features. Refer to thermostat specifications for details. The DX2 Series comes standard requiring a 120 VAC connection to the thermostat. An optional 24 VAC internal relay (24VAOX) may be factory installed if the heater is to be controlled via a 24 VAC thermostat.

  • Page 46: Wiring

    Installation • Series Wiring Wiring WARNING Electric Shock Field wiring to the tube heater must be connected and grounded in accordance with national, state, provincial, local codes and to the guidelines in the Tube Heater Manual. In the United States refer to the most current revisions to the ANSI/NFPA 70 Standard and in Canada refer to the most current revisions to the CSA C22.1 Part I Standard.
  • Page 47 Series Installation • Wiring Before field wiring this appliance - Check existing wiring; replace if necessary. Note: If any of the original wire supplied with the appliance must be replaced, it must be replaced with wiring material having a rating of at least 600V, 105° C. Figure 3.34 •...
  • Page 48 • Series Installation Wiring Figure 3.35 • Alternative Wiring Diagrams A. TP-351A Ladder Diagram - Internal Relay Option (24VAOX) Relay 120VAC Blower Indicator Lights 24VAC Gas Valve Thermostat Terminal Pressure Switch Igniter IGNITION MODULE B. TP-351A Block Diagram - Internal Relay Option (24VAOX) Burner Terminal Block Relay...

  • Page 49: Unit-Start-Up (Commissioning)

    Series Installation • Unit Start-up (Commissioning) • Pre-Start Up Checks Unit Start-up (Commissioning) WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury, or death. This heater must be installed and serviced by a trained gas installation and service personnel only. CAUTION Shock Hazard.

  • Page 50: High Altitude Operation

    Installation • Series High Altitude Operation High Altitude Operation WARNING Explosion hazard. This heater must be converted by a trained gas installation and service personnel only. Failure to comply could result in personal injury, asphyxiation, death, and fire or property damage. High altitude operation of this tube heater is approved, without modification, for elevations up to 6,000 feet (1,829 m) above MSL (sea level) in Canada and the United States.

  • Page 51: Operation

    Series Operation • Operating Instructions Operation WARNING This appliance does not have a pilot ignition. It is equipped with an ignition device which automatically lights the burner. Do not attempt to light the system by hand. BEFORE OPERATING, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle to the floor.

  • Page 52: Sequence Of Operation

    Operation • Series Sequence of Operation WARNING This heater must be installed and serviced by trained gas installation and service personnel only. Do not bypass any safety features or the heater’s built in safety mechanisms will be compromised. Sequence of Operation Starting Circuit: Upon a call for heat, the fan is energized.

  • Page 53: Diagnostics

    Series Operation • • Diagnostics Operational Indicator Lights Diagnostics Lockout: The controls will automatically lockout the heater system when an external or system fault occurs. There are two types of lockout: Soft Lockout: The heater will attempt to light three times. In the event of a failed attempt to light, (gas pressure, valve, no flame sense etc.), the heater will enter a soft lockout period for 15 minutes and then attempt to light three more times before entering Hard Lockout mode.

  • Page 54: Troubleshooting Guide

    Troubleshooting Guide Series Troubleshooting Guide Turn up thermostat Is the power to the Does the fan Is the blower heater 120 V? blower turn on? obstructed? Find the source of the electrical Remove obstruction problem between panel and heater. and lubricate fan. Is the inlet or the outlet of the unit obstructed (i.e., Does the switch...
  • Page 55 Series Troubleshooting Guide Bypassing any switch is intended for testing purposes only. Do not leave switch bypassed NOTICE during normal operation or the heater’s built-in safety mechanisms will be compromised. Process Start Corrective Is 120 V coming Correct Question Question Action to the fan? wiring.
  • Page 56 Troubleshooting Guide Series Continued from page 54 After igniter is Test for 120 V at valve opening period (usually 30 to 45 seconds warmed up, does after power to heater). Is there 120 V to valve for 8 seconds? gas valve open? Replace circuit board and/or wiring harness.
  • Page 57 Series Troubleshooting Guide Check to make sure gas pressure is within minimum and maximum inputs, as indicated on burner rating plate. Replace gas valve. Is gas pressure OK? Correct problem. Confirm manifold pressure is Were the gas lines purged of air? correct and/or gas orifice is not plugged and is the correct size.

  • Page 58: Maintenance

    Series Maintenance • Routine Inspection Maintenance WARNING Personal injury or death may result if maintenance is not performed by properly trained gas installer or service personnel. Contact the installing distributor or place of purchase for service. Do not operate heating system if repairs are necessary. Allow heater to cool prior to servicing.
  • Page 59 Series Maintenance • Maintenance Log Maintenance Log Date Maintenance Performed Replacement Parts Required...

  • Page 60: Heater Components And Parts List

    • Series Maintenance Heater Components and Parts List Heater Components and Parts List Figure 6.1 • Burner Assembly Components 302, 302A 383A 304, 804 351A 352A 222A 380, 202 3014 RH-1, RH-3 3072 or 201B 240, 241 208B Chart 6.1 • Parts List Part No.
  • Page 61 • Series Maintenance Heater Components and Parts List Figure 6.2 • Tube & Reflector Components 20C, 20D 26A, 26D 21B, 220 26A, 26B, 26E Part No. Description Part No. Description TP-113 Reflector Tension Spring TP-301 Center Divider Panel TP-201B Mid-High BTU Burner (Tan) TP-302 End Panel, Left TP-202...
  • Page 62 This page intentionally left blank.

  • Page 63: Limited Warranty

    Limitation of Liability. To the extent allowable under applicable law, Brant Radiant Heaters Limited’s liability for consequential and incidental damages is expressly disclaimed. Brant Radiant Heaters Limited’s liability in all events is limited to and shall not exceed the purchase price paid.

  • Page 64: Kit Contents Check List

    • 5 years - Combustion and radiant tubes • Outdoor approval with OD-Kit • 10 years - Stainless steel burner • Industrial/Commercial approval © 2023 Brant Radiant Heaters, Ltd. 34 Scott Avenue, • Paris, ON, Canada N3L 3R1 Phone: (519) 442-7823 Fax: (519) 442-7321 www.brantradiant.com • sales@brantradiant.com...

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