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QTD2 Series
Installation Manual
The QTD2 Series Infrared Tube Heater is a negative pressure, two-stage radiant heater system. This
manual provides specific information related to the QTD2 Series model. All persons involved with the
installation, operation, and maintenance of the heater system must read and understand the information
in this manual.
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, injury, or death. Read the installation, operation, and maintenance
instructions thoroughly before installing or servicing this equipment.
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.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
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.
For Your Safety
If you smell gas:
• Open windows.
• Do not touch any electrical switch.
• Extinguish any open flame.
• Do not use any phone in your building. • If you cannot reach your gas supplier, call the fire department.
INSTALLER: Present this manual to the end user.
Keep these instructions in a clean and dry place for future reference.
Model#: ___________________ Serial #: _________________________
WARNING
!
• Do not try to light any appliance.
• Immediately call your gas supplier from a neighbor's phone.
• Follow the gas supplier's instructions.
(located on rating label)
LIOQTD2 - Rev. 26416
Print: LIOQTD2-1c-01/17 (DRP)
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Table of Contents
Related Manuals for Detroit Radiant Products QTD2-60N
Summary of Contents for Detroit Radiant Products QTD2-60N
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Page 1: Installation Manual
QTD2 Series Installation Manual The QTD2 Series Infrared Tube Heater is a negative pressure, two-stage radiant heater system. This manual provides specific information related to the QTD2 Series model. All persons involved with the installation, operation, and maintenance of the heater system must read and understand the information in this manual. -
Page 2: Table Of Contents
QTD2 Series Introduction • Table of Contents Contents 1.0 Introduction ............. . 3 Overview . -
Page 3: Introduction
Refer to page 44 for a list of the kit contents for your series 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 Detroit Radiant Products of any discrepancy or missing kit contents prior to installing the heater. -
Page 4: Safety Labels And Their Locations
ANSI Z83.20b-2011 • CSA2.34B-2011 RADIANT TUBE HEATER HEATER BUILD TYPE (Located on top panel) AGA 7-89 RESIDENTIAL RADIANT TUBE HEATER Rear Panel DETROIT RADIANT PRODUCTS COMPANY FOR COMMERCIAL / INDUSTRIAL USE. 21400 HOOVER ROAD - WARREN, MI 48089 FOR INDOOR USE ONLY. MADE IN U.S.A. - Page 5 QTD2 Series Introduction • Safety Labels and Their Locations F/N: LLLOGO13 Electrical Label Logo Label (Located inside service panel) 120V NEUTRAL EARTH - 120V HEATER INPUT - DANGER FIRE HAZARD. Always maintain published clearance to combustibles. In locations used for the storage of combustible materials, signs must be posted.
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Page 6: Safety
QTD2 Series Safety • Warning Symbols • Applications Safety Read and understand all safety information and warnings in this manual prior to installation, operation, and maintenance of this heater. Warnings indicate a potentially hazardous situation which, if not avoided, could result in injury or death. WARNING Improper installation, adjustment, alteration, service, or maintenance can cause property damage, serious injury, or death. -
Page 7: Standards, Certifications And Government Regulations
QTD2 Series Safety • Standards, Certifications, and Regulations • Clearance to Combustibles Standards, Certifications, and Government Regulations Installation of this radiant tube heater must conform 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 8 QTD2 Series Safety • Clearance to Combustibles When installing the radiant heating system, the minimum clearances to combustibles for your series radiant tube heater and system configuration must be maintained. These distances are shown in Chart 2.1 on page 9 and on the burner control box. If you are unsure of the potential hazards, consult your local fire marshal, fire insurance carrier, or other qualified authorities on the installation of gas fired radiant tube heaters for approval of the proposed installation.
- Page 9 QTD2 Series Safety • Clearance to Combustibles WARNING Failure to comply with the stated clearances to combustibles may result in personal injury, property damage, and/or death. Failure to mount the appliance level may result in personal injury, property damage, and/or death. Chart 2.1 •...
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Page 10: Installation
QTD2 Series Installation • 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 11: Recommended Mounting Heights And Coverages
QTD2 Series Installation • Recommended Mounting Heights and Coverages • Heater Packaging Chart 3.1 • Recommended Mounting Heights and Coverages Input Recommended Approximate Coverage Area Model No. BTU/h Mounting Height (ft.) (LxW) QTD2-60 [N,P] 60,000 8 to 12 30 x 40 QTD2-80 [N,P] 80,000 10 to 14... -
Page 12: Hanging The Heater
QTD2 Series Installation • Hanging the Heater Hanging the Heater NOTICE High humidity or saltwater atmospheres will accelerate heater corrosion and reduce useful life. Do not install the heater in locations where water (in the form of rain, drips, or spray) could fall onto the gas ignition components. -
Page 13: Heater Assembly
QTD2 Series Installation • Heater Assembly Heater Assembly Assembly prior to hanging: With this method, the use of two saw horses or a raised table or bench surface is beneficial (the emitter assembly and reflector box may also be used). Lay the emitter assembly across the horses or bench with the exchanger connection hanging bracket extended out over the edge (See Detail ‘A’) NOTE: Use of the foam shipping blocks will help protect the emitter coating and reflectors. -
Page 14: Installing The Reflector Assembly
QTD2 Series Installation • Installing the Reflector Assembly Installing the Reflector Assembly NOTE: Prior to installing the reflector, relocate the saw horses to support the burner control box and the tubes beneath the u-end reflector. Align the reflector end cap holes (2) with the corresponding U-end end studs (see Detail ‘C’-Step 1). NOTE: Do not remove the existing nuts on studs. -
Page 15: Preparing Points For Hanging
QTD2 Series Installation • Preparing Points for Hanging Preparing Points for Hanging Transfer the heater’s three hanging locations to the ceiling where the unit is to be installed and mark hanging points. Prepare mounting surface. If necessary attach additional support blocks and drill holes (Figure 3.5). Fasten beam clamp, screw hook or other type of suspension anchor to hanging point. -
Page 16: Hanging The Pre-Assembled Unit
QTD2 Series Installation • Hanging the Pre-Assembled Unit Hanging the Pre-Assembled Unit Raise the assembled unit from assembly station to prepared hanging location. NOTE: This can be done manually or with a winch system. Attach two chains to exchanger connection hanging bracket (TP-6079). Secure S-hooks. Attach the third chain located furthest from the gas and electrical connections to the reflector end assembly (TP-6089A) and secure S-hook. - Page 17 QTD2 Series Installation • Hanging the Pre-Assembled Unit • Final Check List Figure 3.7 • Hanging the Heater (Side View) 13” 88.5” 8” 2” Mount Heater Level - Front to Back - Figure 3.8 • Hanging the Heater Figure 3.9 •...
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Page 18: Venting
QTD2 Series Installation • Venting Venting When venting the QTD2 Series tube heater, it 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). -
Page 19: Unvented Operation
QTD2 Series Installation • Replacing Existing Equipment Replacing Existing Equipment If the heater is replacing existing equipment and using an existing vent system, inspect the venting for proper size and horizontal pitch as directed in these instructions and the latest edition of the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) or CSA B149.1 Installation Code. -
Page 20: Sidewall Venting
QTD2 Series Installation • Sidewall Venting Sidewall Venting Guidelines: Vent Pipe Angle • To prevent moisture from entering the heater system, slope the vent pipe downward toward the outlet 1/4 in. per foot of length. Do not pitch the heater. •... - Page 21 QTD2 Series Installation • Vent Termination Vent Termination United States: • Vent must terminate a minimum of 4 ft. (1.2 m) below, 4 ft. (1.2 m) horizontally from, or 1 ft. (30 cm) above any window or door that may be opened or gravity air inlet into the building. •...
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Page 22: Rooftop Venting
QTD2 Series Installation • Rooftop Venting Rooftop Venting Guidelines: Vent Locations and Clearances • Separate air intake duct from vent pipe a minimum of 4 ft. (1.2 m) by placing vent pipes higher than adjacent air intake duct. • Venting may utilize standard B-vent cap. •... - Page 23 QTD2 Series Installation • Common Venting Common Venting • When joining two heaters to a common vent, a staggered arrangement or a dual exhaust assembly (P/N: YSM) must be used so by-products of one heater do not flow into the adjoining vent of the other heater.
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Page 24: Combustion Air Requirements
QTD2 Series Installation • Combustion Air Requirements Combustion Air Requirements Combustion air may be supplied to the heater by indoor or outdoor means. If using combustion air intake from indoors, the required volume of the space must be a minimum of 50 ft per 1000 BTU/h (4.8 m /kW) unless the building is of unusually tight construction. - Page 25 QTD2 Series Installation • Combustion Air Requirements Figure 3.15 • Horizontal Outside Air Supply for Single Heater Intake • Side View Air Inlet Connection(Flexible boot and band clamps are recommended) Wall Air Intake Cap 4” pipe Burner Figure 3.16 • Vertical Outside Air Supply for Common Heater Intake •...
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Page 26: Gas Supply Installation Instructions
QTD2 Series Installation • Gas Supply Installation Instructions Guidelines: Chart 3.4 • 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 27 QTD2 Series Installation • Gas Supply Installation Instructions NOTICE The total input to the appliance must fall within +/- 5% of the rated input as indicated on the rating plate. Otherwise the heat exchanger may prematurely fail. IMPORTANT! The heating system will expand and contract during operation. Allowances for expansion must be made between the connection to the heater and the gas supply.
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Page 28: Installation Of The Gas Line To The Heater
QTD2 Series Installation • Installation of the Gas Line to the Heater The gas outlet must be in the same room as the appliance is installed, and must be accessible. 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. - Page 29 Gas Consumption* Model Input (Inches W.C.) (Inches W.C.) (CFH) QTD2-80N 80,000 76.2 QTD2-60N 60,000 57.1 * Assumes an average heating value of 1050 BTU/SCF and a Specific Gravity of 0.60. Chart 3.6 • Propane Gas Consumption Manifold Minimum Inlet Pressure...
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Page 30: Leak Testing
QTD2 Series Installation • Leak Testing Chart 3.9 • Maximum capacity for Schedule 40 Metallic pipe, in CFH 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” Pipe Length Prop Prop Prop Prop Prop Prop 10 feet 1050 1600 1046 3050 1993 20 feet 1100 2100 1373... -
Page 31: Electrical Requirements And Wiring
QTD2 Series Installation • Electrical Requirements and Wiring • Field Wiring Supply Voltage Electrical Requirements and Wiring WARNING Shock hazard. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C. -
Page 32: Thermostat Connection
QTD2 Series Installation • Thermostat Connection Thermostat Connection NOTE: Different thermostats operate according to their particular features. Refer to the thermostat’s specifications for details. Prior to connecting the thermostat wire to the heater, check to make sure the wires will be long enough to allow for the heater to freely expand and contract without causing undue strain on the wires or terminal. - Page 33 QTD2 Series Installation • Internal Wiring Diagram 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 temperature rating of at least 105° C. Figure 3.21 •...
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Page 34: Operation
QTD2 Series Operation • Start-Up and Shutdown Procedure 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 35: Sequence Of Operation
QTD2 Series Operation • 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 control device sends 24V through the post purge timer energizing the fan relay. -
Page 36: Maintenance
QTD2 Series Maintenance • Troubleshooting Guide Maintenance Troubleshooting Guide Turn up thermostat/controller. Is the power at the Does the fan heater 120V? blower turn on? Find the source of the electrical problem between panel and heater. Is there 120V on the Check the power across the primary side of the Find the source of the... - Page 37 QTD2 Series Maintenance • 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. Start Corrective Process Question Action Question Is there 120V on the Is there 120V on the The blower assembly common side of the...
- Page 38 QTD2 Series Maintenance • Troubleshooting Guide Continued from page 36. Test for 24V at valve during the opening period (usually 7 to 10 seconds after power to heater). Is there 24V to valve for 15 seconds? Replace circuit board. Do the burners Do the burners stay on for approx.
- Page 39 QTD2 Series Maintenance • Troubleshooting Guide Is the inlet gas pressure within minimum and Replace gas valve. maximum inputs, as indicated? Correct problem. With microampmeter, check Is the heater properly grounded? DC amperage at flame rods. Is the heater’s polarity correct? Is it 1.0 microamps? Check to make sure gas pressure is Check to make sure both flame...
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Page 40: Heater Components And Parts List
QTD2 Series Maintenance • Heater Components and Parts List Replacement Parts Figure 5.1 • Burner Assembly Components 6105 3014 6121 6170 6116 6107 6155 6106 6119 6048 6104 6196 6174 6140, 6141 6175 6051 6121A 6187 6096 6044B 6126 6024 6044A 6130A, 828A... - Page 41 QTD2 Series Maintenance • Heater Components and Parts List Chart 5.1 • Parts List Part No. Description Part No. Description TP-15A Sight Glass Mica Shield TP-6104 Gas Orifice (Specify Size) TP-68B 1/2” Strain Relief Bushing TP-6105 Burner Box Top Cover TP-826 40VA Transformer TP-6106...
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Page 42: Routine Inspection
QTD2 Series Maintenance • Routine Inspection Routine Inspection 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. -
Page 43: Limited Warranty Terms And Conditions
Prompt Disposition: Detroit Radiant Products Company will make a good faith effort for prompt correction or other adjustment with respect to any product which proves to be defective within limited warranty. For any product believed to be defective within limited warranty, first write or call dealer from whom the product was purchased. -
Page 44: Kit Contents Check List
• 3 years - Radiant tubes. • Commercial approval. • 5 years - Combustion burner. • See page 43 for terms and conditions. © 2017 Detroit Radiant Products Co. 21400 Hoover Road • Warren, MI 48089 Phone: (586) 756-0950 Fax: (586) 756-2626 www.detroitradiant.com • sales@drp-co.com...
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