
Direct Gas-Fired Make-up Air Units
Direct gas-fired make-up air units feature burners that are 92% efficient and capable of up to 30:1 turndown. The burner construction consists of a cast aluminum manifold with stainless steel mixing and end plates, drastically reducing burner maintenance in the field. These units can be configured with a wide variety of heating/cooling capacities and air volumes.
OVERVIEW

DGX
Model DGX is a highly configurable direct gas-fired heating and cooling system. The unit incorporates a modular design to maximize configuration flexibility. In addition, constant volume, 100% outdoor air, recirculation, and VAV airflow arrangement are available. The DGX can be configured with a forward-curved, backward-curved or mixed flow plenum supply fan allowing for either belt-driven or drive arrangements.
- 800 to 48,000 cfm and 4 in. wg
- Up to 4,800,000 BTU/hr.
- Cooling options: packaged direct expansion (DX), split direct expansion (DX), chilled water, or evaporative cooling
- ETL listed

TSU
Model TSU is a configurable, direct gas-fired heating make-up air unit. In addition, constant volume 100% outdoor air operation, recirculation, and VAV airflow arrangements are also available.
- 33,000 to 64,000 cfm and 3 in. wg
- Up to 7,000,000 BTU/hr.
- Optional evaporative cooling
- ETL listed

VSU
Model VSU is a vertically configured direct gas-fired heating make-up air unit that offers a wide range of CFMs. The vertical configuration removes the equipment weight loading from the roof and offers a simplified means of installation. Ground level filters, dampers, and controls greatly simplify equipment start-up and maintenance.
- 800 to 64,000 cfm and 3 in. wg
- Up to 7,000,000 BTU/hr.
- ETL listed
- Catalogs
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Instruction Manuals
- IOM # 486959 - Packaged DX Module (R-454B)
- IOM #471095 - Model TSU Weatherhood
- IOM #474681 - Packaged DX Module
- IOM #482886 - Models DG, DGX, TSU and VSU
- Quick Start Guide #485292 - DG MUA 120 Honeywell Pilot with Micro
- Quick Start Guide #485925 - DG MUA 24 Baso Pilot with Micro
- Quick Start Guide #485927 - DG MUA 120 Baso Pilot with Micro
- Quick Start Guide #694984 - DG MUA Pilot Ignition
- Quick Start Guide #914008 - DG MUA 24 Baso Terminal Strip
- Start-Up Guide
- Specifications
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Drawings
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STATIC MODEL DOWNLOAD3D CAD2D CAD
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TSU
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- Videos
- Other Product Information
- Warranty