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Kitchen Ventilation Kitchen Ventilation
Ductwork Ductwork
Make-Up Air Make-Up Air
HVAC Unit HVAC

Direct Fired Heaters

  1. Heaters
  2. Direct Fired Heater

Modular Direct Drive Fired Heaters(F-D)

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.

  • Air Volume: 1,000 – 21,000 cfm
  • Maximum SP: 4" wg. at standard air density

Features

DU-H
  • 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

Options

  • Electrical Cabinet LED Lights
  • 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
  • DDC Control capability for BACnet MS/TP, LonWorks, Johnson N2, and Modbus Protocol
  • Z83.18 Recirculating Configuration

Certifications

The FD 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 FD is ETL Listed under file number 103371695COL-001 and complies with ANSI Z83.4-Second Edition and CSA 3.7-2006 Standards.

Recirculating Model FD is ETL listed under file number 3035352-002 and complies with ANSI Z83.18 Standard – Fourth Edition.

This product may be covered by one or more of the following patent number(s): (United States) 6629523, or other U.S. and foreign patents pending.

ETL Listed

Manuals

  • Blower Reorientation
  • Operation and Installation Manual
  • Operation & Installation Manual - MUA Controls
  • Operation & Installation Manual for Recirculating Heaters

Drawings

  • Duct Hanger Drawing
  • Exploded Parts Detail
  • Isolator Detail Drawings
    • Floor Springs
    • Hanging Springs
  • Submittal Drawings
    • Recirculating
    • Non-Recirculating

Controls And Control Options

  • DDC Operation & Installation Manual
  • DDC Application Guide
  • Recirculating Heater Controls

Written Specification

  • Written Specification
  • Written Specification (Word Document)

Additional Information

  • Accessories
  • Center of Mass Calculator
  • Formulas
  • Frequently Asked Heater Questions
  • Motor Information
  • Performance Data

  • F1-D.250-G10Direct Gas Fired Heated Make Up Air Unit with 10" Blower
  • F1-D.250-G10DDirect Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch.
  • F1-D.500-G10Direct Gas Fired Heated Make Up Air Unit with 10" Blower
  • F1-D.500-G10DDirect Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch.
  • F1-D.250-15DDirect Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive Fan
  • F1-D.500-15DDirect Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive Fan
  • F1-D.250-16ZDirect Gas Fired Heated Make Up Air Unit with 16" Direct Drive Fan
  • F1-D.500-16ZDirect Gas Fired Heated Make Up Air Unit with 16" Direct Drive Fan
  • F1-D.250-18ZDirect Gas Fired Heated Make Up Air Unit with 18" Direct Drive Fan
  • F1-D.500-18ZDirect Gas Fired Heated Make Up Air Unit with 18" Direct Drive Fan
  • F2-D.250-G15Direct Gas Fired Heated Make Up Air Unit with 15" Blower
  • F2-D.500-G15Direct Gas Fired Heated Make Up Air Unit with 15" Blower
  • F2-D.750-G15Direct Gas Fired Heated Make Up Air Unit with 15" Blower
  • F2-D.250-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan
  • F2-D.250-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan
  • F2-D.500-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan
  • F2-D.500-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan
  • F2-D.750-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan
  • F2-D.750-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan
  • F2-D.250-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan
  • F2-D.500-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan
  • F2-D.750-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan
  • F3-D.500-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 12" Burner.
  • F3-D.750-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 18" Burner.
  • F3-D.1000-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 24" Burner.
  • F3-D.500-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 12" Burner.
  • F3-D.750-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 18" Burner.
  • F3-D.1000-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 24" Burner.
  • F3-D.500-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 12" Burner.
  • F3-D.750-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 18" Burner.
  • F3-D.1000-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 24" Burner.
  • F4-D.1000-920Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 24" Burner.
  • F4-D.1500-920Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 30" Burner.
  • F4-D.1000-28ZDirect Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 24" Burner.
  • F4-D.1500-28ZDirect Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 30" Burner.
  • F4-D.1000-30DDirect Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 24" Burner.
  • F4-D.1500-30DDirect Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 30" Burner.
  • F5-D.2000-925Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 48" Burner
  • F5-D.2500-925Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 60" Burner
  • F5-D.2000-36DDirect Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 48" Burner
  • F5-D.2500-36DDirect Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 60" Burner

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Moving air with superior ventilation products.

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