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Modular Side/Down Discharge Direct Fired Heater

Modular Side/Down Discharge Direct Fired Heater

For Direct Fired Make-Up Air Package Submittal Drawings please click here.
For Direct Fired Make-Up Air Package Performance Data please click here.

  • Air Volume: 1000 - 21000 cfm
  • Maximum SP: 4" wg. @ standard air density

    DIRECT GAS FIRED MAKE-UP AIR
    The Direct Gas Fired Make-Up Air package is designed to deliver tempered make-up air for installations requiring frequent air changes. Units are designed for natural and propane gas applications, and for indoor or outdoor installation.

    STANDARD FEATURES & BENEFITS
  • G90 galvanized construction
  • Easy access doors
  • Lifting points
  • Pre-wired, pre-piped controls
  • Horizontal or down discharge
  • Vibration isolation
  • High efficiency motors
  • Adjustable drive sheaves
  • Fully insulated casing
  • Stainless steel burner
  • 120 volt control transformer with single point electrical connection
  • Redundant gas valves
  • Intermittent spark pilot with timed safety lockout
  • Electronic flame modulation
  • High temperature limit switch
  • Airflow proving switch
  • Economizer inlet thermostat
  • Motor starter
  • Disconnect switch
  • Burner observation port

    AVAILABLE OPTIONS
  • Propane Fuel Application
  • Room Override Thermostat
  • Motorized Intake Damper
  • Remote control panel including summer/winter switch and operating lights
  • Freeze Stat with Bypass Timer
  • Hi/Low Gas Pressure Switches
  • Room Modulating Thermostat
  • High Gas Pressure Regulator
  • Convenience Outlet
  • DX Cooling Coils
  • Evaporative Cooler Intake
  • V-Bank Filter Intake
  • Sloped Filter Intake
  • Auxiliary Starters
  • Inlet Gas Pressure Gauge
  • Indoor Hanging Cradle
  • VAV Packages
  • Roof Curbs
  • Clogged Filter Switch
  • Cooling Thermostat and Interlock
  • Extra Set of V-Belts

    ADDITIONAL FEATURES
    The Direct Gas Fired Heater is ETL Listed for use in tempering make-up air. The make-up air is introduced into the heater intake directly from outside the building. Packages are certified to the ANSI Z83.4a-2001/CSA 3.7a-2001 combined safety standard and are available in sizes up to 2,500,000 BTUH and 21,000 CFM. A unique feature of our unit is the patented self-adjusting burner profile plates, which ensure proper air velocity and pressure drop across the burner for clean combustion. Spring-loaded profile plates react to the momentum of the fresh air stream, therefore, no motors or actuators are needed to drive them, nor do they need to be manually set to a specific position. With this feature, all of our units are designed for variable air volume capabilities.

    Standard features include intermittent spark ignition system with timed safety lockout and redundant gas valves. Units consist of a galvanized enclosure with an elevated gas burner which burns directly in the air stream. The burner consists of non-clogging, stainless steel combustion baffles attached to a aluminum gas supply section. The burner is capable of 100% thermal efficiency with a maximum turndown ratio of 30 to 1. The burner module has a standard horizontal inlet and discharge duct connection, and is located upstream of the blower module. The blower module has a standard horizontal inlet designed to accommodate an outside air inlet hood with standard 2" filters and screen.

    To satisfy a variety of installation requirements, packages are available in a number of configurations which include additions of a v-bank, cooling coil or an evaporative cooler intake module. All modules bolt together to form a rigid common base structure that mounts onto a single curb structure.

    Combination packages that include both exhaust and supply fans mounted on a single roof curb are also available, please contact your sales representative for more information.

    CERTIFICATIONS
    The AD Model has been certified by ITS. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. and Canadian products safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.

    Model AD is ETL Listed under file number J20042560-001 and complies with ANSI Z83.4-Second Edition and CSA 3.7-2006 Standards.
  • Specifiche tecniche
    • Rif. Unicocaptiveaire-025
    • Famiglia di prodottoHVAC
    • Gruppo di famigliaAir Handling Units
    • TipoOggetto (oggetto singolo)
    • Data di pubblicazione2011-12-01
    • Numero di versione1
    Relativo a
    • Progettato inStati Uniti
    • Prodotto inStati Uniti
    Classificazioni
    • Categoria BIMobjectRiscaldamento, ventilazione e condizionamento - Climatizzazione
    • Codice Uniclass 2015Ss_65_40_33_51
    • Descrizione Uniclass 2015Mechanical supply ventilation systems
    • Codice CSI MasterFormat 201423 00 00
    • Titolo CSI MasterFormat 2014Heating, Ventilating, and Air Conditioning (HVAC)
    • Numero OmniClass23-33 00 00
    • Titolo OmniClassHVAC Specific Products and Equipment
    • Codice CSI UniFormat IID30
    • Titolo CSI UniFormat IIHVAC

    Disponibilità Regionale

    Nord America
    Anguilla
    Antigua e Barbuda
    Aruba
    Bahamas
    Barbados
    Belize
    Bermuda
    Canada
    Costa Rica
    Cuba
    Curaçao
    Dominica
    El Salvador
    Giamaica
    Grenada
    Groenlandia
    Guadalupa
    Guatemala
    Haiti
    Honduras
    Isole BES
    Isole Cayman
    Isole Turks e Caicos
    Isole Vergini Americane
    Isole Vergini britanniche
    Martinica
    Messico
    Montserrat
    Nicaragua
    Panamá
    Porto Rico
    Repubblica Dominicana
    Saint Kitts e Nevis
    Saint Martin
    Saint Vincent e Grenadine
    Saint-Barthélemy
    Saint-Pierre e Miquelon
    Santa Lucia
    Sint Maarten
    Stati Uniti
    Trinidad e Tobago