Trion Air Boss ATS Info for System Design Engineer

DESIGN - FOR THE SYSTEM DESIGN ENGINEER

1. Introduction

ATS units are Air Treatment Systems designed to efficiently remove a variety of contaminants from an air stream. These contaminants may range from those found in a normal kitchen ventilation air to weld fumes or oils and effluents from various manufacturing processes. A range of units is available to clean specific air volumes.

Each unit is made up of mechanical and electronic “dirt” collecting modules and efficient, trouble free operation is absolutely dependant upon the periodic removal of the collected contaminate from the cleaning elements. Unit design simplifies this requirement.
When properly installed, operated and maintained, the ATS unit will effectively and efficiently perform its designed task.
 

2. General Description

The standard major components supplied with each ATS unit are as follows:

• Base unit consisting of 5 modular sections: 1) impinger, 2) electronic air cleaner, 3) bag type media filter, 4) activated carbon adsorber and 5) blower/motor.
   

• Washer control including high voltage power supplies to be mounted remotely.
   

• Detergent system to be located remotely.
   

• Wash water supply line strainer.
   

• The impinger section contains impinger panels to collect grease and liquid particulate, oscillating front and rear wash manifolds and metal mesh prefilters (and afterfilters when specified).

The electronic air cleaner section contains the ionizing collecting cells to remove very fine particles; oscillating front and rear wash manifolds and metal mesh prefilters and afterfilters.
When a factory installed fire suppression system is specified, both the impinger and electronic air cleaner sections include spray nozzles. Fire control is usually required in kitchen exhaust and similar applications.

The media section contains bag type filters providing safety filtration from the electronic air cleaner in the event of any accumulated blow-off or contaminant penetration in the event of an electrical outage.

For odor control, the adsorber section contains the activated carbon panels in a vee bank configuration.

With the exception of the wash manifolds and the blower/motor, all the major components slide in and out of the housing for ease of service.

To provide access to the system components (except the blower section), gasketed doors with push button latches and lift off hinges are located 90 degrees to the direction of airflow on one side of the cabinet. Access preference should be noted when unit is ordered. Access to the blower section is obtained by removing the bolts retaining the discharge end panel.
The power supplies providing the necessary high voltage for the electronic air cleaner and the controls initiating and sequencing the wash cycle are housed in NEM 12 enclosure designed for remote mounting.. in addition, the enclosure is a central junction for the primary wiring.
The standard 16-gallon detergent system is furnished as a completely assembled unit to be piped directly to the wash water supply, into the wash manifold headers.
Note: 30 or 55 gallon detergent tanks are available as an option.

Note: Trion Tridex Detergent is specially formulated for use with Trion electronic air cleaners. Use of other cleaners and detergents, not specifically approved by Trion, can cause possible failures in the unit and will void any warranties on our equipment.

The strainer is to be installed in the wash water supply line. Factory installed solenoid valves are located in the piping inside the impinger and the electronic air cleaner sections.
An optional chemical free suppression system may be specified to be included with the ATS unit if it is a requirement of the application. The system available from the factory must be completed at the installation site by a qualified and authorized fire control contractor. In addition to final hook up, he will complete tie in with other existing systems, test, finally inspect and if necessary, coordinate his work with local or other designated fire inspectors. The fire suppression system includes strategically located spray nozzles and an electrical fire detection device to signal a control head that opens a valve to discharge a chemical cylinder. An auxiliary mechanical “pull” is also supplied to be installed at a remote location to manually activate the system. The general contractor should coordinate his work with that required by the fire control contractor. Refer to fire control system outline drawing. Fig 7
The following are standard options that may be specified on the basic systems:
1. without carbon section
2. without media section*
3. without carbon and media sections
4. without blower section
5. additional electronic air cleaner section (double pass unit)
6. 30 or 55 gallon detergent system
7. perforated plate in lieu of the metal mesh filters
8. fire suppression system
*a carbon section without a media section is not recommended by TRION
 

Safety note: factory designed access to all electrically charged high voltage components contain electrical interlocks for the safety of operating personnel. Any additional access that may be provided in the system, where there is access to high voltage, must be equipped with such interlocks. Interlocks are readily available from the factory.

Water wash drain lines from the cabinet drain basin should be trapped or otherwise sealed against the system pressure (in accordance with local codes). Wash water to the unit must meet the volume required for the specific unit involved, and between 35PSIG min. – 50 PSIG max. at full flow to provide proper spray patterns from the wash nozzles. The wash water MUST be hot water (140° recommended) and installed as close as possible to the unit and detergent system.

Note: THE HOT WATER TANK IS NOT PROVIDED BY TRION.

When applicable, the detergent system, the wash water inlet piping and the drain lines must be protected from freezing temperatures.

Each installation varies according to needs, but the water wash control must be located indoors, out of the weather, and as close to the air cleaner as practical. Ideal mounting height is at eye level for ease in reading the instrumentation, and to facilitate service. The instructions furnished for manually operating the fire extinguishing system shall be posted conspicuously near the control in the kitchen or well-occupied work area.

For ease in maintenance and component removal, adequate space, 39” minimum required, must be provided in front of all access doors, motors, pump and accessory equipment. Special consideration should be given in this respect for installations where the unit is suspended overhead. Catwalks or platforms should be provided.
 

3. System Design and Layout

(Refer to, or request, submittal drawings for dimensions and data pertaining to a specific unit that is not included in this manual)

The arrangement of the supplied components and the general lay out of the system will vary according to application, adjoining equipment and available space. However, there are several basic factors pertaining to all installations that must be considered:

To maintain the selected cleaning efficiency, it is important to assure that the total air volume (capacity in CFM) is uniformly distributed across the entire face are of the unit. The metal mesh filters, perforated plate or mist suppressors, provide some resistance to effect even air distribution. However since most air ducts are designed to handle air velocities greater than the rated velocity of the air cleaner, it is necessary to properly transition any attached ducting. If possible, a contraction ratio of 1 in 3 (approximately 20°) should be maintained. If space prohibits, turning vanes, air baffles or other means may be utilized. Ducting – where attached to the cabinet collars – should be gasketed, caulked or otherwise made watertight. The bottom of the air entering duct should be reasonably flat and sloped toward the impinger drain pan for a length of 18 inches. This will assure that any wash water splash back is returned to the drain basin. The ducting and duct connections should be designed in accordance with applicable code requirements.

When there is danger of rain, snow or debris being drawn into the system with outside air, the makeup air intake should be protected with rain louvers, hooding and hardware cloth to prevent the rain snow or debris from entering the electronic air cleaner.

Some contaminants to be collected, such as oils in vaporous state, must be condensed into particulate form prior to entering the ionizing collecting cells in order to maintain the anticipated efficiency. Gases, vapors or any non-particulate cannot be precipitated and will there fore pass through the collecting elements. Any condensing that takes place downstream from the air cleaner defeats the purpose. By the same token, heavy concentrations of water vapor or other matter that becomes highly conductive when condensed must be prevented from entering and/or condensing in the electronic air cleaner to prevent electrical arc over and shorting. The impinger module aids in this process and will adequately handle light concentrations, however, it is recommended to insulate upstream ducting conveying warm air that is subjected to cold temperatures on applications such as kitchen exhaust.