AE14-5 Series Installation Manual

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13
TROUBLESH OOTING
IO-AE14-5
Voltage on the power board may drop below required level
when installaon area is too damp, too cold, or if there is a
leakage of water from a humidier. Voltage on power board
may be too high when installaon area is too dry or too hot,
or home is in close proximity to hydro towers or situated in
remote farm land areas. By adjusng the HV Adj. potenom-
eter, the voltage can be set to opmum level. A high voltage
meter capable of measuring 10,000 VDC is required. To test
and adjust voltage level, perform the following procedure:
1. Turn the air cleaner OFF.
2. Remove the power box cover.
3. Connect the ground of the high voltage meter to an
unpainted surface in the power box.
4. Turn ON the air cleaner and wait 5 minutes before
checking voltages to allow voltages on cells to stabilize.
The cells and ionizing wires must be clean.
5. Measure the voltages at HV1 and HV2 on the
power board.
6. Adjust the HV Adj. potenometer unl the voltage
reading matches the voltage in Table 3. Adjusng the
potenometer clockwise decreases the voltage and
turning counter-clockwise increases the voltage.
7. Turn OFF the air cleaner.
8. Remove the high voltage meter.
9. Replace the power box cover.
10. Turn ON the air cleaner.
Seng Approximate Voltage without High Voltage Meter
A high voltage meter should be used to set the high
voltage. If one is not available, this method can be used.
This will only set an approximate voltage. Aer using this
method, the voltage should be reset with a high voltage
meter as soon as possible.
1. Remove power box cover.
2. Turn the HV Adj. potenometer fully counter-clockwise.
The air cleaner may arc or snap at this point.
3. Turn the HV Adj. potenometer clockwise unl the
arrow is at the half way point.
4. Replace power box cover.
⑥ Tesng for Voltage at The Cell
1. Open access door to air cleaner.
2. The cells must be in the air cleaner for this test
and the system fan should be on high speed.
3. Turn the air cleaner ON and press the safety
interlock switch lever.
4. Place a plasc handled screwdriver into the
direcon arrow slot. Do not apply excessive force.
5. If there is a good snap, then there is high voltage at the cell.
⑦ Tesng Cell for Bad Contacts
1. Open access door to air cleaner.
2. The cells must be in the air cleaner for this test and the
system fan should be on high speed.
3. Turn the air cleaner ON and press the safety interlock
switch lever.
4. Place a plasc handled screwdriver into the direcon
arrow slot. Do not apply excessive force.
5. There should be an inial snap when the plates are
shorted, then no sound. If a hissing occurs, then there
is a bad contact. Look along the top of the cell, with the
short sll in place. If there is a small arc between the
cell top and copper contact, then that is the bad contact.
Pull cell out and gently pull the copper contact down.
6. If an arc is not seen and there is a bad contact, then the
problem may be an internal contact in one of the cells.
7. Let up on safety interlock.
8. Close access door.
⑧ Tesng Cell with an Ohmmeter
To test the cell for a dead short or a bad contact, an
ohmmeter can be used.
Always discharge the cell with a screw driver before
tesng with an ohmmeter.
1. With the ohmmeter set on its lowest scale, take a
reading between the top center contact of the cell
and the ionizing ngers on the boom of the cell.
You should have connuity. If you do not, then there
is a bad contact between the center contact and the
top set of ionizing ngers.
2. Test the resistance between the top center contact
and the cell frame. You should read innite resistance.
If not, you have a short in the ionizing secon.
3. Take a reading between the two outside contacts on
the top of the cell. You should have connuity. If you
do not, then there is a bad contact between one of the
contacts to the live cell plate. Test each top outside
contact to the last plate in the cell to determine which
contact is not mang properly.
4. Test the resistance between the outside contacts
and the cell frame. You should read innite resistance.
If not, you have a short in the collecng secon.