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Detroit Radiant Products FA series Installation Operation & Maintenance

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Detroit Radiant Products Company
FA Series
The FA Series heater is a gas-fi red unit heater . This manual provides specifi c information related to the
FA Series models . 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, serious injury or death . Read and understand the installation,
operating and maintenance instruction 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,
and fi re or property damage .
Do not store or use gasoline or other fl ammable vapors and liquids in the vicinity of
this or any appliance .
Do not use this heater in indoor living or sleeping quarters! Installation of this unit in
a residential indoor living space 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 fl ame .
• Do not use any phone in your building .
INSTALLER: Present this manual to the end user.
Keep these instructions in a clean and dry place for future reference .
Model#: ___________________ Serial #: _________________________
Manual
WARNING
!
• Immediately call your gas supplier from a neighbor's phone .
• Follow the gas supplier's instructions .
• If you cannot reach your gas supplier, call the fi re department .
(located on rating label)
Installation, Operation,
Maintenance and Parts
LIOFA-Rev . 00413
Print: 1M-8/13_r3-4/15 (CDS)

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  • Page 1 Installation, Operation, Maintenance and Parts The FA Series heater is a gas-fi red unit heater . This manual provides specifi c information related to the FA Series models . 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

    Series Table of Contents Contents 1.0 Introduction ............3 Overview .

  • Page 3: Introduction

    The intent of this manual is to provide information regarding safety, design guidelines, installation, operation and maintenance of the FA Series gas-fi red unit heater . You must read and understand the instructions and all safety warnings before installing the gas-fi red unit heater . This manual is property of the owner, and must stay with the owner or unit after installation is complete .

  • Page 4: Initial Installation Considerations And Pre-Checks

    Introduction Series • Initial Installation Considerations and Pre-Checks Initial Installation Considerations and Pre-Checks 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 .

  • Page 5: Product Specifications

    Product Specifications Product Specifications The FA Series unit heater is a single input warm air heater with an average thermal efficiency of 80%, unless otherwise indicated on the rating label . All units are to be supplied with single-phase 60 Hz 120VAC power .

  • Page 6: Safety Labels And Their Locations

    COTÉ ACCÉDEZ INCH INCH INCH INCH INCH INCH DETROIT RADIANT PRODUCTS COMPANY FOR COMMERCIAL / INDUSTRIAL USE. 21400 HOOVER ROAD - WARREN, MI 48089 FOR INDOOR USE ONLY. MADE IN U.S.A. (586) 756-0950 - www.drp-co.com Rating Label (Inside of Panel)
  • Page 7 Series Introduction • Safety Labels and Their Locations F/N: LLUH007 FA Vent Length Notice F/N: LLUHCL001 For Your Safety F/N: LLWUH001 - Wiring Diagram Service Access Door View (Inside View) F/N: LLUH001 - LED Status...

  • Page 8: Safety

    . Commercial / Industrial The FA Series unit heater is designed and certified for use in industrial and commercial buildings, such as warehouses, manufacturing plants, aircraft hangars, and vehicle maintenance shops . For maximum safety, the building must be evaluated for potential problems before installing the heater system . This unit is certified for use as furnished by the manufacturer .

  • Page 9: Standards, Certifications And Government Regulations

    Series Safety • Standards, Certifications and Government Regulations Standards, Certifications and Government Regulations Installation of this gas-fired heater must conform with all applicable local, state and national specifications, regulations and building codes . Contact the local building inspector and/or Fire Marshall for guidance .
  • Page 10 Safety Series • Standards, Certifications and Government Regulations Chart 2.2 • Standard and Code Installation Guidelines • Building Location Building Guidelines Location High Guidelines Altitude Installation of this heater is approved, without modifications, for elevations up to 2,000 feet (610 m) above MSL (sea level) in the United States . For elevations above 2,000 feet, the heater input must be derated .

  • Page 11: Clearance To Combustibles

    Series Safety • Clearance to Combustibles Clearance to Combustibles Clearance to combustibles is defined as the minimum distance that must exist between the specified feature of the heater, and any combustible items . It also pertains to the distance that must be maintained from moving objects around the unit heater .

  • Page 12: Installation

    Installation Series • Louver Installation Installation Louver Installation For 0° Mounting: Guide the plunger side of the louver into the larger of the two holes (as shown in Figure 3 . 1 ) . The louver arch must face up . When the plunger is in the hole, press the louver in;...

  • Page 13: Hanging The Unit Heater

    Series Installation • Recommended Mounting Heights Hanging the Unit 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 14: Recommended Mounting Heights

    Installation Series • Recommended Mounting Heights • Gas Supply Installation Instructions Recommended Mounting Heights Chart 3.1 • Recommended Mounting Heights* Typical Approximate Average Air Model Mounting Height Heat Throw Temperature Rise FA-100 12 to 14 ft . 43 ft . 50°F FA-125 14 to 16 ft .
  • Page 15 Series Installation • Gas Supply Installation Instructions The gas supply to the unit heater must be connected and tested in accordance with national, state, provincial, and local codes along with guidelines in this manual . In the United States refer to the latest edition of the ANSI Z223 .
  • Page 16 175’ 200’ The FA Series heater is equipped to receive a gas supply line nipple of either ½”NPT or ¾”NPT Schedule 40 metallic pipe . All piping must be installed in accordance with the requirements outlined in the National Fuel Gas Code ANSI/Z223 . 1 (latest edition) or CSA-B149 . 1 and B149 .2 . Support all gas supply piping with pipe hangers, metal strapping, or other suitable material .

  • Page 17: Leak Testing

    Series Installation • Gas Supply Installation Instructions • Leak Testing Figure 3.1 • Recommended Hardware – Manual Shut Off and Sediment Trap Flow of Shut Off To Unit Ground Joint Union Gas Supply Line 1/8-in . NPT Test Connection (Plugged) 3-in .

  • Page 18: Electrical Requirements And Wiring Diagrams

    Installation Series • Electrical Requirements and Wiring Diagrams • Internal Wiring Diagrams Electrical Requirements and Wiring Diagrams 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 19: Field Wiring Supply Voltage

    Series Installation • Field Wiring Supply Voltage Field Wiring Supply Voltage Before proceeding with electrical connections, ensure that the supply voltage, frequency, phase and current capacity meet the requirements specified on the rating plate . A dedicated line voltage supply with properly sized wire should run directly from the main electrical panel to the heater .
  • Page 20 Installation Series • Field Wiring Figure 3.3 • Field Wiring Flexible Conduit BX or Romex Connector Junction Box Ground Green White to L2 (Ground) (Neutral) Black to L1 (Hot) Connect wires together with UL approved wire connectors . Green to Ground Black to L1 White to L2 Note: A UL Listed switch may be installed in the 2x4 junction box for use as a service disconnect .

  • Page 21: Thermostat Connection

    NOTE: Different thermostats operate according to their particular features . Refer to the thermostat’s specifications for details . Each FA Series heater requires a single stage thermostat rated for 24VAC to operate . The heater comes standard with a terminal strip for making the thermostatic connections, located on the back panel .

  • Page 22: Thermostat Location

    Installation Series • Thermostat Location Thermostat Location The location of the thermostat should be determined by the desired heating requirements and be mounted on an inside wall five (5) feet above the finished floor . Locate the thermostat in a conspicuous location, away from where it could be influenced by heat from the unit or other sources, as this may cause the unit to short cycle .

  • Page 23: Venting

    Replacing Existing Equipment Venting The FA Series unit heater must be vented as described here to properly direct the 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 24: General Venting Requirements

    General Venting Requirements General Venting Requirements The venting system for the FA 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 25 Series Installation • General Venting Requirements General Vent Requirements Figure 3.5 • Vent Cap 24 in . Min . * Roof* Storm Collar Adjustable Roof Flashing 1 in . Minimum Clearance Double-Wall B Vent 1 in . Minimum Clearance Fire Stop Spacer Heater B to C Adapter Clean Out Tee Fitting...

  • Page 26: Vertical Venting (Category I)

    An appliance that operates with a non-positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent is said to be ‘Category I’ . The FA Series heater is considered a Category I appliance if the venting system meets all of the following criteria: •...

  • Page 27: 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 FA Series heater is considered a Category III appliance if the venting system meets all of the following criteria: •...
  • Page 28 Installation Series • Vent Locations and Clearances • Sidewall Venting Requirements Vent Locations and Clearances: • Category III venting systems may NOT be common vented, and no other gas units are allowed to be vented into it . • 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 29: Common Venting (Category I)

    Series Installation • Common Venting (Category I) • Common Rooftop Venting Common Venting (Category I) The common vent system and all attached appliances must be Category I . 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 30: Concentric Venting

    Installation Series • Concentric Venting • Combustion Air Requirements Concentric Venting Contact the factory for concentric venting requirements . Combustion Air Requirements Combustion air may be supplied to the heater by indoor or outdoor means . Follow these guidelines and all applicable codes for all models prior to installing the combustion air duct work . Local codes may vary .

  • Page 31: Separated Combustion Systems

    Separated Combustion Systems Separated Combustion Systems All FA Series heaters come with a factory-installed combustion air adapter for attaching air intake ducts to the heater . Attach the air intake duct material to the adapter with three (3) non-corrosive sheet metal screws . If necessary, drill pilot holes prior to attaching the air intake ducts . The diameter of the intake ducts must not be smaller than the factory installed adapter .
  • Page 32 Installation • Separated Combustion Systems Combustion Air Sidewall Intake - Side View Figure 3.9 • Outside Exhaust Listed Wall Thimble Terminal Cap (P/N: SWD-4 or SWD-6) Clean-out 6 in . 12 in . Min . Min . 3 ft . Min .

  • Page 33: Room Air Combustion Systems

    Series Installation • Room Air Combustion Systems Room Air Combustion Systems When operating this unit as a room air combustion appliance, the factory installed air intake collar may be removed and the required air for combustion can be taken into the appliance from the space, so long as it is not a confined space .

  • Page 34: Unit Start-Up (Commissioning)

    Installation Series • 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 35: Verify Proper Inlet Pressure

    Series Installation • Verifying Inlet Pressure Verify Proper Inlet Pressure Before starting up the unit, smell all around the unit heater for gas . Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor . When turning the gas shut off valve, only use your hand .

  • Page 36: Verify Manifold Pressure

    Installation Series • Verifying Manifold Pressure Remove the pressure gauge tube and the 1/8 inch NPT hose connector . Replace the inlet pressure tap plug on the gas control valve . Leak check the re-installed pressure tap plug using a soap solution or equivalent method as described in ANSI Z223 .

  • Page 37: Prior To Leaving The Job Site

    Series Installation • Prior to Leaving the Job Site While waiting for the unit to stabilize, observe the characteristics of the flame . The flame should be stable and should not lift form any burner . The burner color should be light blue, and not create excessive noise .

  • Page 38: High Altitude Operation

    . The FA Series heater is factory configured for altitudes from 0 – 2,000 ft above sea level . If the unit heater is being installed at an elevation above 2,000 ft, the input rate will have to be de-rated to ensure proper operation .
  • Page 39 Series Installation • High Altitude Operation Chart 3.6 • High Altitude Conversion Kits for Elevations of 4,501 to 7,000 Feet Kit Number Orifice Size Number of Model Orifices Natural Gas Propane Natural Gas Propane FA-100 HKN-44_4 HKP-55_4 44 DMS 55 DMS FA-125 HKN-44_5 HKP-55_5...

  • Page 40: Operation

    Operation Series • Sequence of Operation 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 . Sequence of Operation Standby: The ignition control continually checks for internal faults, circuit integrity and relay contact positioning .

  • Page 41: Shutdown Procedures

    Series Operation • Shutdown Procedures Shutdown Procedures:  Set the thermostat to the lowest setting .  Turn OFF all electrical power to the appliance if service is to be performed .  Turn manual shut off knob clockwise to OFF . Do not force . If the heater’s internal diagnostic LED displays any of the signals listed in Charts 4 .

  • Page 42: Troubleshooting Guide

    Series Troubleshooting Guide Troubleshooting Guide Limit switch is open or pressure Turn on control Find source of switch is stuck closed . Find device for heat. electrical problem . faulty switch and repair . Does the draft Does the heater have 120 VAC Does the air circulating inducer motor at the main power connection?
  • Page 43 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 . Corrective Process Start Remove Action Question Question obstruction . Check fuse on circuit board and Is there 24 VAC internal controls transformer .
  • Page 44 Series Troubleshooting Guide Continued from page 42 . Is the gas supply Check inlet pressure to the heater . Is it within Do the burners ignite? valve to the heater in the minimum and maximum allowable range the “on” position? as per the rating plate? Turn on gas supply Adjust inlet pressure .
  • Page 45 Series Troubleshooting Guide Does the heater’s gas Check manifold pressure . Are Were the gas lines type match the gas you reading within the specified purged of all air? supplied? pressures per the rating plate? Contact local Adjust pressure or Purge gas lines .

  • Page 46: Maintenance

    Maintenance Series Maintenance To check gas tightness of the safety shut off valves, turn off the manual valve upstream of the appliance combination control . Remove the hex head plug on the inlet side of the combination control and connect a manometer to that tapping . Turn the manual valve on to apply pressure to the combination control .
  • Page 47 Series Maintenance Check lubrication instructions on motor . If oiling is required, add three or four drops of SAE 20 electric motor oil: • After three years or 25,000 hours (for light-duty operation) . • Annually after three years or 8,000 hours (for medium-duty operation) . •...

  • Page 48: Heater Assembly Components And Parts List

    Maintenance • Series Heater Components and Parts List FA Series Cabinet 3 (FA-100 & FA-125) Parts Listing Figure 5.1 • Heater Assembly Components 3105 3112 3102 3150, 4150, 3111, 3831, 3841, 3843 4111, 3833, 3101 3821, 3823 2461, 2462, 2113...
  • Page 49 Series Maintenance • Heater Components and Parts List • Chart 5.1 FA Series Cabinet 3 (FA-100 & FA-125) Parts List Part No. Description Part No. Description CKP_54_4 Propane Conversion Kit (FA-100) UF-552 Spark Igniter Boot CKP_54_5 Propane Conversion Kit (FA-125)
  • Page 50 Maintenance • Series Heater Components and Parts List FA Series Cabinet 4 (FA-150, FA-175 & FA-200) Parts Listing Figure 5.2 • Heater Assembly Components 4112 4105 5150 4102 5111 4831, 4832, 4101 4841, 4821, 4822 4842, 4461, 4462, 2113 400, 410...
  • Page 51 Series Maintenance • Heater Components and Parts List • Chart 5.2 FA Series Cabinet 4 (FA-150, FA-175 & FA-200) Parts List Part No. Description Part No. Description CKP_54_6 Propane Conversion Kit (FA-150) UF-551 Spark Igniter Wire CKP_54_7 Propane Conversion Kit (FA-175)
  • Page 52 Maintenance • Series Heater Components and Parts List FA Series Cabinet 5 (FA-225 & FA-250) Parts Listing Figure 5.3 • Heater Assembly Components 5105 4112 5102 5150 5831, 5111 5841 5101 5821 5461 2113 729, 739, 5103 401, 411 5106...
  • Page 53 Series Maintenance • Heater Components and Parts List • Chart 5.3 FA Series Cabinet 5 (FA-225 & FA-250) Parts List Part No. Description Part No. Description CKP_54_9 Propane Conversion Kit (FA-225) UF-425 Limit Switch, Tube Temperature CKP_1 .45_9 Propane Conversion Kit (FA-250)

  • Page 54: Maintenance Log

    Maintenance Series • Maintenance Log Maintenance Log Date Maintenance Performed Replacement Parts Required...

  • Page 55: Limited Warranty Terms And Conditions

    . Dealer will give additional directions . If unable to resolve satisfactorily, write to Detroit Radiant Products Company at 21400 Hoover Road, Warren, Michigan 48089, listing dealer’s name, address, date and number of dealer’s invoice, and describe the nature of the defect .

  • Page 56: Kit Contents

    Installation, Operation, Maintenance and Parts The FA Series heater is a gas-fired unit heater. This manual provides specific information related to the FA Series models. All persons involved with the installation, operation and maintenance of the heater system must read and understand the information in this manual.

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