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Make-Up Air Unit for Distribution Center - A Case Study

Key Facts
- 100% Outside Air Heating
- Airflow CFM: 69,000
- Capacity MBH: 6,900
- Fuel: Natural Gas
Options
- Filtered Inlet Hoods with 1" Aluminum Filters
- Metal Bird Screens
- Discharge Temperature Controls
- Low Temperature Limit Switch
Overview
Problem
The distribution warehouse is a large facility located in Belton, MO. Trucks are able to drive up to the warehouse to have their truck loaded.
Also, inside the distribution center is a food production sector. This sector is kept at approximately 35 degrees Fahrenheit. This is to create a large walk-in cooler type atmosphere.
After the food preparation is complete the area is thoroughly cleaned before the following shift.
This leaves a small window of opportunity to complete the sanitation and cleaning duty. Furthermore, without the proper airflow leads to an extended amount of time for cleaned surfaces to dry.
Wet surfaces in a cold room will lead to issues such as ice buildup or bacteria growth. Excess water is also a safety hazard that could potentially lead to employee injury.
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We’ll be happy to help explain which model and make is best for your application.
Solution
To solve the problem of drying a wet room before the next shift, 5 AbsolutAire direct-fired make-up air units were installed. This allowed the facility to be cleaned and then quickly filled with very hot air. The rapid flow of the air allowed the room to dry quickly.
Since heat was being pushed so quickly into the room the safety precautions were taken. On each make-up air unit a low temperature limit switch was installed. In the event of a burner failure the unit is able to be turned off.
Another safety feature was 1” aluminum filters that were mounted in the inlet hoods. This was a precaution for birds and other contaminants from entering the clean rooms.
Conclusion
Installed 5 direct fired make-up air units proved effective. The facility is cleaned on a regular basis and very hot air is pumped into the room to ensure it’s dry before the following shift.
The result is more productivity from staff due to less downtime waiting for the room to dry. The longevity of cooling equipment is not affected since it is cleaned. Lastly, employees are safe working in a clean and dry environment.
Since heat was being pushed so quickly into the room the safety precautions were taken. On each make-up air unit a low temperature limit switch was installed. In the event of a burner failure the unit is able to be turned off.
Another safety feature was 1” aluminum filters that were mounted in the inlet hoods. This was a precaution for birds and other contaminants from entering the clean rooms.
Contact Us
At R. Williamson & Associates we are here to help you achieve success. As a official distributor of Berner Air Curtains, we will make sure you receive the best option for a customized air curtain.
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