Trion HE Plus 1400, HE Plus 2000 warranty Unit Components, Secondary Circuit Power Supply

Unit Components

Cabinet

Mounts to existing ductwork; houses the Ionizing-Collecting Cells and Pre-filters.

Ionizing-Collecting Cells

Collect the dust, dirt and other particulates in the air. They contain the ionizing and collecting sections. The cells must be installed with the ionizing wires on the air intake side. A spring contact is located on the top of each cell and must be in the position to make contact with the contact board assemblies on the bottom of the Power Tray Assembly.

Pre-filters

Trap large particulates before they enter the Ionizing-Collecting Cell.

Power Tray Assembly

Contains the indicating lights, solid-state power supply, contact boards and electrical controls including the ON/OFF switch and safety interlock switch. A power cord at the rear of the 120 volt Power Tray allows the unit to be connected to a standard 120 volt outlet. A wiring compartment is provided on all models at the rear of the Power Tray allowing the option to permanently wire the unit directly to the HVAC System Control.

Air Flow Sensor (AFS)

Controls the operation of the unit by sensing the movement of air within the duct. This helps to reduce power usage.

The AFS is designed to provide an efficient and reliable method of controlling the operation of the air cleaner when

the installer is unable to wire the unit directly into the HVAC System Blower Control Circuit. The AFS utilizes a thermistor, which when electrically powered, heats up to approximately 130° F. The AFS stabilizes at this temperature and while the

HVAC System Blower is in operation, air flows through the ductwork, creating a vacuum effect that pulls cooler air over the hot surface of the thermistor. This air movement cools down the thermistor which allows the AFS to register that the HVAC System blower is moving air and the Electronic Air Cleaner must be powered to provide air cleaning.

Air Cleaner Model Identification

The model number and part number for your Electronic Air Cleaner can be found on the data label located on the inside of the Front Panel Assembly.

	Troubleshooting
	For Qualified HVAC
SECONDARY CIRCUIT POWER SUPPLY	Installer Only

If the Red CELL ENERGIZED light remains out with the Ionizing-Collecting Cells removed from the cabinet, the power supply is defective. Specific problems in the Power Tray Assembly can be isolated by using a Multimeter and High Voltage Probe to check the output voltages.

To check the secondary circuit, a high voltage meter is required. See the section entitled RECOMMENDED SERVICE TOOLS (pg. 20). To check for proper operation, it is imperative that the procedure be followed as outlined below:

1.Make sure the HVAC system is operating, the air cleaner ON/OFF switch is ON, and air cleaner input voltage is correct (120V, 50-60Hz for 120V units and 240V, 50-60Hz for 240V units).

2.Remove Front Panel Assembly from air cleaner.

3.Remove Power Tray Assembly Cover.

4.Check the high voltage contact board assembly for damage or carbon tracking.

CAUTION:

The cell contacts must be visually checked for corrosion, excessive dirt build-up, and electrical arc tracking (Carbon path from stainless steel spring to grounded metal). Clean or replace as required.

5.Replace both Ionizing-Collecting Cells in the air cleaner cabinet.

6.Make test connections from the High Voltage Probe to the Multimeter in accordance with the probe’s instruction manual. The Multimeter should be set for reading DC voltage at 20 volt full scale.

7.Attach the High Voltage Probe ground lead to the air cleaner cabinet. While depressing the safety interlock switch lever, touch the ionizer wire support with end of the High Voltage Probe. The meter reading should be 6.2 kVDC + .2 kVDC.

8.If no voltage is measured, remove the first Ionizing-Collecting cell and check the second cell by repeating step #7. The meter should read 6.2 kVDC + .2 kVDC.

9.If proper voltage is measured, the first cell is shorted. Refer to COMMON TROUBLESHOOTING TECHNIQUES (pg. 9).

2 23