TDG-3-108 Air Curtain

Climate Control • 3 Motors • 108" Wide • Direct Gas

TDG-3-108 Air Curtain
TDG-3-108 Air Curtain | Made in the USA

108” Climate Control (TDG) direct gas heated air curtain. Maintain the interior building temperatures with climate control air curtains. Save on utilities & energy costs with air doors. Designed for openings up to 12 feet high.

Direct Gas
Max Install Height

At a Glance

Single Incremental Widths

6' to 12'

MAX Installation Height


Heavy Duty Motors


Key Design Features

  • All weight bearing structural support is 14-gauge stainless steel. Case equipped with stainless steel access panels for inspection, cleaning or removal of motor blower assembly.
  • Heavy duty 3/4 HP motors. 1630 rpm each.
  • Direct gas heater equipped with a temperature sensor that controls the heater output by way of modulating gas valve. An airflow switch along with a motor contactor will ensure that the burner will not fire without the fans spinning. In case of flame failure, the flame safety relay energizes the alarm lockout relay shutting down the entire system. The system will only restart if the flame safety relay is manually reset.
  • Units equipped with proof of closure on the main gas valve, as well as high and low gas pressure switches.
  • Direct gas fired panels are mounted to the unit and contain a 24-volt control transformer, flame safety relay, temperature sensor, air flow sensor and modulating gas valve controls.
  • Top and bottom access panels to replace or service motors or blowers without lowering entire unit or bottom half of unit. The motor/blower plate comes out as an entire piece.
  • Control panel included

Recommended Controls

  • HAND / OFF / AUTO switch
  • Magnetic Door Switch for activation
  • Built-in time delay relay
  • Thermostat

360 View

360 View | TDG-3-108 | Air Curtain | 108” Climate Control TDG Direct Gas Heated
TDG-3-108 | Performance Table
MODELNozzle Width (In.)Max. FPM
at Nozzle
Max. CFM
at Nozzle
Avg. FPM
at Nozzle
at Nozzle
Outlet Velocity UniformityNumber
of Motors
Motor HPHeater Output
mbtu / Hour
Max. Output Temp. (˚F)Weight

Cost Savings Calculator

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Air Curtain Selector

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