Trion 60 manual Section Iii Operation & Service, Grounding, Check Out for System Start-up

convenient location near the door. Those located inside are wired in series with the electrical interlocks and used as a safety measure to control the primary power to the high voltage power supplies from inside the duct. Those located outside control the duct lights.

Grounding

An earth ground must be provided to the Model 60 cabinet and control. All ground connections must be in contact with bare metal and securely affixed. Ground conductor size and connection means will be in accordance with all applicable electrical code standards.

9. Check Out for System Start-up

When the installation has been completed, assure that the equipment is ready for start-up by checking the following:

A.Ensure all construction debris is removed from the ionizing-collecting cells, drain basin and ductwork.

B.The drain line from the Trion drain basin is clear and completely connected to its point of termination.

C.Supply line power is available and electrical wiring is completed to the following components:

1.Controller

2.Electrical Interlocks

3.Ionizing-Collecting Cells

4.The System Fan

5.Duct Lights, Indicating Lights and Switches

SECTION III OPERATION & SERVICE

WARNING

RISK OF ELECTRIC SHOCK

These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

FOR THE MAINTENANCE ENGINEER

1. Introduction and Principle of Operation

The Trion electronic air cleaner is technically known as an electrostatic precipitator. In this type of equipment, all airborne particles, even of microscopic size, are electrically charged (positively) as they pass through a high voltage ionizer. These charged particles are then attracted and adhere to a series of parallel collecting plates, which form the negative elements of an electrostatic field.

The ionizer consists of charged stainless steel spiked blades spaced between grounded electrodes. The collecting section consists of parallel plates arranged so

that each alternate plate is charged while the intermediate plates are electrically grounded.

Periodically, depending on the type and concentration of contamination in the air, the contaminate is washed from the plates by manually cleaning the cells while in place or removing them from the unit and then cleaning. Two major functional components comprise the air cleaner:

(1)Ionizing-collecting cells to ionize and collect airborne particulate matter.

(2)Power supply(s) to supply high voltage direct current to the ionizing-collecting cells.

Normally, systems are designed for collection efficiencies in the range of 90 percent or more. Collecting a contaminant at these efficiencies, especially when there are high concentrations can result in large accumulations in a relatively short period. Therefore, maintenance must encompass two areas; the operation of the equipment for efficient collection and the systematic removal of the collected contaminant.

2. General Description

The ionizing-collecting cells (contaminant collecting elements) are housed in the cabinet on unistrut frames. They can be removed from the unit as required, from the backside (downstream airflow side). When installing cells into the cabinet, observe the directional arrows on the cell end plates. The side of the cell containing the spiked ionizer blades always must be located on the air entering side.

The Power Supply(s) convert the 115 volt, 60HZ, single phase AC supply to the high voltage DC needed to power the ionizing-collecting cells. Potential of 13 KVDC are required for the ionizer sections and 6.5 KVDC for the collector sections of the cells.

3. Initial Start-up

A.Inspect the inside of the adjoining ductwork and Trion cabinet to be sure it is clean and free of any debris or construction materials. Especially note the opening in the drain basin for any restrictions. The ducting, where secured to the cabinet collars, should be sealed water tight either with gasketing or caulking.

B.Inspect the ionizing-collecting cells to see that all of the ionizing blades or wires are intact, that no large pieces of foreign material are lodged between the plates, and that the cells are properly installed in the cabinet with the spiked ionizing blades or wires located on the air entering side.

C.Check the high voltage leads to see that they are connected to the proper terminal both at the

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