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Pub. No. 18-HE17D7-4
Installer’s Guide
CHECKOUT PROCEDURE
ON/OFF SWITCH “ON,” OPERATING LIGHT “OFF.”
All voltage measurements indicated can be made with a
high voltage DC probe and a general purpose volt ohm
meter, for example: Simpson 260 or equivalent.
For testing the power pack, the air flow monitor may be discon-
nected from the system, eliminating the need for air flow through
the sensor tube.
1.
Turn On/Off switch to the “OFF” position and remove the
power pack from cabinet.
2.
Check collecting cells for foreign object between plates,
broken ionizing wires, cracked insulator, bowed or bent
plates. Wash cells if required paying particular attention to
cleaning all ionizing wires and the extended portions of the
front frame.
3.
Using the method described in the section “Cell Test,” check
the voltage of both collecting cells. The voltage should be
6100 to 6800 VDC. With the ozone reduction jumper in the
NORMAL position, if the voltage is below 6100 VDC, dis-
connect collecting cells.
4.
Check voltage at power pack cell contact. Open circuit
voltage should be 6100 to 6800 VDC.
5.
If voltage at cell contact is 6100 VDC or above, problem is
in collecting cells. Recheck in accordance with Step #2.
6.
If voltage at cell contact is below 6100 VDC, problem is in
power pack. Turn off power and remove back panel from
power pack.
7.
Check all wiring points and connectors inside the power
pack for tightness.
DC. POWER SUPPLY SPECIFICATIONS
AND REPLACEMENT
The power supply is a Solid State, High Frequency AC to DC
power source and is not designed for individual component part
Support
Ionizing
Wire
Figure 12. Replacing Ionizing Wire
REPLACING AN IONIZING WIRE
If an ionizing wire should break, it can be replaced as follows:
1.
Remove all pieces of broken wire. Make sure supports at
each end are in good condition and not bent out of shape.
2.
Hook the new wire onto the support at one end.
3.
Hold your finger against the support at the other end Figure
12) and hold the ionizing wire between thumb and forefinger
as shown or use needle nose pliers. Press on spring and on
wire loop until it slips over the end of the support.
4.
Make sure wire is securely
anchored at each end.
In some cases the green light will remain OFF during this initial
activation of the air cleaner. This would indicate that the cell(s)
are not completely dry. The green light should turn ON once the
drying is complete.
Ionizing
Wire
Ionizing
Wire
Pencil
Eraser
Pencil
Eraser
Figure 11. Cleaning Ionizing Wires
FUSE REPLACEMENT
The fuse is located in the fuse holder inside the power pack
next to the female power plug. See Figure 10.The fuse protects
the power supply components against damaging electrical
current. This fuse has a rating of 1 amp, 250 Volts.
To check or replace a fuse:
Disconnect the power cord from the door and remove the
power door from the air cleaner.
On the inside of the door, remove four screws holding the
power pack to the door and remove the power pack.
Separate the power tray from the cover.
NOTE: When reassembling the power tray and cover,
ensurethat tray wiring is positioned to avoid interference
Check the fuse located next to the female power plug.
Replace the fuse if needed (1 amp, 250 volt fuse).
After servicing the fuse, reassemble the cover and power
tray. When reassembling, be sure that power switch
plate is on the outside of the cover and the tab on the
power switch plate slides into the opening on the
cover. Be sure also that tab on bottom of power tray
is on the outside of the cover. See Figure 10.
Position power unit on door and reattach using four
screws previously removed. Replace power cord.
