Trion 60 manual General Description, System Design and Floor Layout

SECTION I DESIGN

FOR THE SYSTEM DESIGN ENGINEER

1. General Description

Model 60 equipment consists of factory-assembled components to be “built-up” in the field into a completed unit. Depending on the system requirements, the installation may consist of a single unit or a multi-section unit. A multi-section unit is simply two or more single units placed side-by-side.

The factory-assembled components are designed to be mounted on a field prepared pad in the form of a drain basin, typically constructed of poured concrete.

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

A. Framework – Support members, complete with sheet metal panels on the top and sides, to receive and locate the ionizing-collecting cells.

B.Ionizing-Collecting Cells – The elements used to remove and collect the contaminants from the air stream.

C.Control/Power Supply Box(s) – Located in the control enclosure and converts 115VAC to the high voltage DC required to energize the ionizing- collecting cells.

The programmable logic controller (PLC) electrically sequences the washing operation. The Pulse Width Modulated (PWM) power supplies, providing the necessary high voltage for the air cleaner and the controls initiating and sequencing the wash cycle are furnished in a NEMA 12 enclosure designed for remote mounting. The distance between the controller and unit must be determined as the interconnecting high voltage leads are furnished to the specified length. Consult factory for distances greater than 50 ft. Cables are not to be spliced at any point along their length. In addition, the enclosure is a central junction for the primary wiring.

D.Accessories – Electrical interlocks, lights and switches for safety and monitoring.

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, will cause possible failures in the unit and will void any and all warranties on our equipment.

2. System Design and Floor Layout

The arrangement of the supplied components and the general layout 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 area of the unit. 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 sheet metal panels – should be gasketed, caulked or otherwise made water and airtight.

When there is a danger of rain, snow or debris being drawn into the system with outside air, the make-up 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.

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 therefore pass through the air cleaner. 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 collecting elements to prevent electrical arc over and shorting.

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.

A foundation and drain basin design must be provided to carry off the wash water used to clean the ionizing- collecting cells. It is suggested that a new concrete basin be poured prior to the scheduled shipment of the hardware. Refer to Figure 3, Recommended Foundation and Drain Basin Layout Drawing.

Serious consideration should be given to any deviation from the suggested design, which would result in improper drainage, leakage, air bypass and mounting.

In addition to the governing plumbing codes, the following points should be considered in the construction of the basin.

A.) Drain lines must be of adequate size to carry off the required amount of detergent/wash water used. Refer to the piping schematic drawing, Figure 4.

B.) Drain lines must be suitably trapped and vented to prevent line gases from entering the air handling system.

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