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Installation
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For Qualified HVAC Installer Only
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Secondary Circuit Power Supply (continued)
10. If no voltage is present, remove the second cell. Install cell number one and measure
voltage as described in step #7. If voltage is present, the second cell, which is now out
of the cabinet, is shorted. Refer to the section entitled COMMON TROUBLE-
SHOOTING TECHNIQUES (page 9).
11. If no voltage is present, remove both Ionizing-Collecting Cells and measure the power
supply output. While depressing the safety interlock switch lever, touch the end of the
high voltage probe to either the front or rear contact board assembly. The meter should
read 6.2 KVDC or higher.
12. If no voltage is present, check the transformer. Set the Multimeter for reading AC
voltage at 200 volts full scale and attach meter test leads to the junction of the
transformer secondary leads and the circuit board. The meter should read 24 volts +/–
4 volts.
13. If there is no voltage from the transformer, replace the transformer and power supply
board.
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Introduction
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This Electronic Air Cleaner is a two-stage electrostatic precipitator. The air cleaner is
designed to remove airborne particulates, including dust, dirt, smoke, pollen, virus, spores,
bacteria, and mold from indoor air.
Air movement through the unit is provided by the heating, air conditioning, or ventilating
system blower. As dirty air enters the air cleaner, the air passes through Metal Mesh
Prefilters. The Prefilters prevent lint, pet hair, and other large particulates from entering the
air cleaner. It is important that these filters be in place to prevent excessive dirt loading of
the air cleaner Ionizing-Collecting Cells. These filters extend the time interval between
scheduled maintenance of the air cleaner, which allows the Ionizing-Collecting Cells to
provide clean air for a longer period between washings.
The pre-filtered air then passes through two-stage Forever Filter
®
Ionizing-Collecting Cells.
In the first stage, all airborne particulate, even submicron size, are electronically charged
(positive) as they pass through the ionizer section. The ionization field is a result of a
corona discharge emanating from the fine, tightly strung wires suspended between two
adjacent flat plates. In the second stage, the charged particulate passes through an
intense electrical field established between alternately charged and grounded parallel
collector plates. Here, the charged (positive) particulate is attracted to the ground
(negative) plates and removed from the air stream.
