| Direct Fired systems are flexible units for space heating, make-up air, and ventilation applications. When more air is exhausted from a building than is supplied by the mechanical systems, the building is under a "negative" condition and air will leak into the building through cracks, windows and doors. A negative condition results in the following: |
| • |
Flues and stacks will experience a backdraft and cause dangerous contaminants to remain in the occupied space. In the case of flues, the products of combustion may condense and corrode the equipment. |
| • |
The exhaust system sees a greater static pressure which reduces the capacity of each fan, resulting in an inadequate removal of contaminants and wasted horsepower. |
| • |
Drafts and cross currents will increase, causing an uncomfortable or unhealthy work environment. |
 |
 |
|
| Direct Firing eliminates the need for heat exchangers, resulting in 100% efficiency. All products of combustion are introduced into the supply air stream at concentrations well below code requirements. As natural gas is an abundant, clean and low cost fuel that is readily available, this system is very cost effective to operate. To learn more about Direct Fired Systems click here. |
|
|
| The Benefits and Features of Direct Fired Systems from Applied Air |
|
| • |
The heavy gauge galvanized steel outer panels are designed to eliminate rust for longer life. |
| • |
Blowers tested to AMCA standards assure proper airflow for efficient operation. |
| • |
The ETL approved, single speed, natural gas fired unit offers adjustable burner profile plates and control system for modulation down to 4% of full input. This delivers the precise amount of gas to the burner, maintaining the exact temperature setting with the lowest possible gas usage. |
| • |
The 140 point final test procedure for every Applied Air Direct Fired unit means fewer start-up problems. |
| • |
For maximum flexibility, units can be installed indoors or outdoors, vertically or horizontally, or include evaporative cooling modules. |
| • |
Direct Fired units are 100% efficient. |
|
|
