Setting The Power Level; Fault Codes - American Standard IFD AIR CLEANER Service Manual

Service Manual

SETTING THE POWER LEVEL

All electronic air cleaners produce a small amount of
ozone that is within established limits. Some customers
may notice an odor especially at high altitudes and low air
flow rates.
The average person can detect the odor of ozone in the
range of 3 to 10 parts per billion (ppb) The air cleaner will
contribute 5 ppb of ozone to the indoor air on the
NORMAL setting. The U.S. Food and Drug Administration
recommends indoor ozone concentrations should not
exceed 50 ppb.
One or more of the RED LED's will come on indicating the
Power setting. Repeatedly press the Reset button to cycle
through the Power setting options until the desired setting
is displayed.
To exit the set-up mode, press and hold BOTH the Power
and filter Reset button for a minimum of 5 seconds. The
current settings will be saved.
7
RED LED POWER SETTINGS
Lowest
R3
DIRTY
DIRTY
R2
R1
Y4
Y3
Y2
Y1
G3
G2
G1
CLEAN
CLEAN
*Factory Setting

FAULT CODES

The air cleaner LED's will display a fault indication, three
yellow or three red LED's, when a fault has been detected.
A log of the last three faults is recorded and can be
accessed by going into the set-up mode. The unit will
repetitively check the system to determine if the fault
persists. The fault indication will be displayed as long as
the fault condition remains.
If the fault is no longer present, the system will return to
normal operation and no longer display the fault indication.
Even if the fault has been cleared, a log of the last 3 faults
is recorded.
THREE YELLOW LEDs FLASHING
These LEDs flashing on and off means that the Pre-Filter
or the Collector cells need to be cleaned. The air cleaner
control has detected ten consecutive automatic High Voltage
Shut Down (HVSD) cycles. An automatic HVSD cycle is
normally activated by the control system when an internal
electrical arc occurs.
8
Medium Normal*
R3 R3
DIRTY
R2 R2
R1
R1
Y4 Y4
Y3
Y3
Y2 Y2
Y1
Y1
G3 G3
G2
G2
G1 G1
CLEAN
LitePort DATA
When the air cleaner has detected a fault and it is flashing it's
three RED LEDs on and off it will also be sending the fault data
to the pre-filter LED causing it to flash on and off. This fault data
can be read using a LitePort Optical Coupler. To activate the
LitePort data port during normal operation remove 24VAC power
from the electronic air cleaner. Push and hold in the reset button
while applying the 24VAC power to the electronic air cleaner. The
LitePort data will then be outputted via the prefilter LED. The
LitePort data will now be continuously outputted until the 24 VAC
power is remover from the electronic air cleaner.
THREE RED LEDs & THE Pre-filter LED FLASHING
This means service is needed. For these THREE RED LEDs to
be flash on and off the control must have detected the SAME
FAULT, see Fault Code Table on page 9, THREE TIMES in a row
after an automatic High Voltage Shut Down cycle.
FAULT CODES RETRIEVAL
To retrieve the last three faults that the Air Cleaner Control
has detected enter the Set Up Mode of operation.
Press and hold the Power/On
for a minimum of five seconds. When the control enters the
SET UP MODE of operation some of the Green, Yellow and
Red LEDs will be on. The color and number of LEDs that are
on indicates how the control is presently programmed. (See
SET UP CHARTS on a previous page). To enter the Fault
Codes section press and hold the Reset Button for ten
seconds. After ten seconds the main LED display will go out
for one second and then some of the LEDs may began to
flash on and off. If no fault has been detected then only the
first Green LED will be flashing on and off. The flashing Green
LED or LEDS identifies the fault number being reported out.
One Green Led flashing on and off means the last fault
detected is being reported out, two Green LEDs flashing
means the second fault detected is being reported out and
three Green LEDs flashing means the last fault stored in the
control memory is being reported out. The last three faults
detected will be stored in the control's memory and the last
fault detected will be the first fault reported out.
You are now in the Fault Log report section and the last fault
detected is now being reported out.
To step through the faults press the Power/On
to get the second fault and again pressing the Power/On
button will take you to the last fault stored in the control's
memory. Push the Power/On
will again display the last fault detected.
To exit the Set-up mode, press and hold both thePower/On
and Filter reset buttons for a minimum of 5 seconds.
FAULT CODES
When a fault is being reported out check the position number
of any of the Yellow and Red LEDs flashing on and off.
Compare this combination of flashing LEDs position numbers
to the Fault Code chart to see which fault has been detected.
The number one Yellow LED will always be out in the Fault
Code report section.
button and the Reset button
button again
button again and the control
SF