INSTALLATION OPERATION, AND MAINTENANCE

INSTALLATION
OPERATION, AND
MAINTENANCE
INSTRUCTIONS
Residential Duct Mount
Electronic Air Cleaner
Part Numbers: P102-12, P102-14A, P102-14B, P102-20
IMPORTANT: Read entire instructions before installing the air cleaner.
IF YOU NEED HELP call toll free: 1-800-267-8305
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,2
Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Power Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Air Proving Switch (APS) . . . . . . . . . . . . . . . . . . . . . 2
High Voltage Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Collecting Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Prefilters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Carbon Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electronic Air Cleaner Installation . . . . . . . . . . . . . 2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SYSTEM CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ozone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Dust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cell and Prefilter Cleaning . . . . . . . . . . . . . . . . . . . . 5
Carbon Filter Replacement . . . . . . . . . . . . . . . . . . . 5
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Testing Air Proving Switch (APS) . . . . . . . . . . . . . 5
Replacing an Air Proving Switch (APS) . . . . . . . . 6
Testing for High Voltage at Power Board . . . . . . 6
Replacing Performance Light . . . . . . . . . . . . . . . . . 6
Replacing a Power Board . . . . . . . . . . . . . . . . . . . . . 6
Testing the 24-V Transformer . . . . . . . . . . . . . . . . . 6
Replacing the 24-V Transformer . . . . . . . . . . . . . . . 7
Testing Voltage of Power Board . . . . . . . . . . . . . . . 7
Testing Cell for Bad Contacts . . . . . . . . . . . . . . . . . 8
Removing Power Box . . . . . . . . . . . . . . . . . . . . . . . . 8
Removal of High Voltage Contact Tray . . . . . . . . 8
Replacing a Tungsten Ionizing Wire . . . . . . . . . . . 9
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 10
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all local electrical codes during installation. All wiring
must conform to local and national electrical codes. Improper wiring or installation may damage air cleaner.
Recognize safety information. This is the safety alert sym. When the safety alert symbol is present on equipbol
ment or in the instruction manual, be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety alert
Manufacturer reserves the right to discontinue, or
change at any time, specifications or designs
without notice and without incurring obligations.
symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING
signifies a hazard which could result in personal injury or
death. CAUTION is used to identify unsafe practices which
would result in minor personal injury or property damage.
Before beginning any installation or modification, be certain that the main line electrical disconnect switch is in
the OFF position. Electric shock could result. Tag disconnect switch with suitable warning labels.
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance
functions of cleaning and replacing filters. All other operations should be performed by trained service personnel. When
working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit,
and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves.
GENERAL
The electronic air cleaner is designed to remove
atmospheric and household dust, pollen, mold spores, bacteria, insecticide dust, animal dander, coal dust, cooking smoke
and grease, and tobacco smoke particles down to
0.01 micron.
First the prefilter removes all large visible particles such
as lint or hair. Then the electronic air cleaner ionizes the particles in the air (the particles are given a strong positive electrical charge). The particles are then attracted to grounded
plates and collected. Pollutants are held onto the plates like
a magnet until cleaning when they are washed away. Optional carbon filter(s) then remove the odors from the air.
The electronic air cleaner is available in 4 different
models and 3 different airflow capacities: 1200, 1400, and
2000 cfm. See Table 1. The electronic air cleaner is adaptable to all residential forced air furnace or cooling systems.
It must be installed in the return air duct, as close to the blower
compartment as possible. This location provides the most
even airflow across the collecting cells and allows the electronic air cleaner to keep the system motor and blower clean.
Regular maintenance (cleaning of cells and filters) is required by the home owner.
COMPONENTS
See Fig. 1 for a description of the electronic air cleaner.
Cabinet — The cabinet is constructed of heavy gage galvanized steel. Holes are provided in the cabinet for easy mounting in the ductwork or air-handling equipment. See Fig. 2
for cabinet dimensions.
REPLACEMENT COMPONENTS DIVISION
R CARRIER CORPORATION 1/99
PRINTED IN U.S.A.
LITERATURE NUMBER EAC-50SI
CATALOG NUMBER 570-562
Table 1 — Specifications
PART NUMBER
House Size Area
Airflow
Duct Size
Unit Weight
Input Voltage
Power Consumption
Options Available
P102-12
< 2400 ft2
< 222.96 m2
up to 1200 CFM
up to 2039 m3/hr
16 x 20 in.
405 x 510 mm
28 lbs
12.9 kg
120 V 60 Hz
30 Watts
Activated Carbon Filters
P102-14A
< 3000 ft2
< 278.70 m2
up to 1400 CFM
up to 2379 m3/hr
16 x 25 in.
405 x 635 mm
30 lbs
13.5 kg
120 V 60 Hz
30 Watts
Activated Carbon Filters
Power Box — The removable power box contains the power
switch, performance indicator light, safety interlock switch,
high voltage power board, and air proving switch.
P102-20
> 3000 ft2
> 278.70 m2
up to 2000 CFM
up to 3398 m3/hr
20 x 25 in.
510 x 635 mm
38 lbs
17.5 kg
120 V 60 Hz
30 Watts
Activated Carbon Filters
INSTALLATION
Location — The electronic air cleaner must be installed in
the return air duct, as close to the blower compartment as
possible. This location provides the most even airflow across
the collecting cells and allows the electronic air cleaner to
keep the system motor and blower clean. See Fig. 3. When
choosing location, there must be adequate room to wire the
air cleaner and remove prefilters, cells, and power box.
NOTE: Be sure to notify home owner not to install any device within 2 ft from the top of the air cleaner after installation is complete. Regular servicing of the electronic air cleaner
is required. A 2 ft clearance is required to remove filters for
cleaning.
INSTALLATION LOCATION WITH HUMIDIFIER — If a
separate humidifier is purchased, it should be installed in the
furnace warm air duct. However, a humidifier may be installed in the return air duct without causing problems to the
air cleaner. Care must be taken to ensure that the humidifier
does not leak, as this may cause arcing at the electronic air
cleaner and mineral deposits on the collecting cells.
An atomizing-type humidifier should only be installed downstream of the electronic air cleaner. If the atomizing-type humidifier is installed upstream, high humidity, salts, and minerals may decrease the efficiency of the collecting cells and
cause service problems.
If the atomizing-type humidifier must be installed upstream, the following precautions should be taken:
1. Atomizing-type humidifier must be installed as far from
the electronic air cleaner as possible.
2. The collecting cells on the electronic air cleaner must be
washed frequently to prevent a mineral deposit build up.
INSTALLATION LOCATION WITH AIR CONDITIONER
— Whenever possible, the electronic air cleaner should be
installed upstream of the cooling coil. This location will clean
the air before it reaches the evaporator coil.
Air Proving Switch (APS) — An integrated air proving
switch automatically cycles the electronic air cleaner on and
off with the furnace fan. The APS will detect airflow (fan
on) and energize the electronic air cleaner.
High Voltage Tray — The high voltage tray contains the
contacts and wires to supply high voltage to the collecting
cells.
Collecting Cells — The collecting cells consist of an ionizing section and a plate section. The arrow on the cell must
point toward the furnace fan.
Prefilters — The prefilters are constructed from aluminum mesh and prevent lint and other large particles from
entering the collecting cells.
Carbon Filters — The carbon filters are used to remove
odors. They are not washable and should be replaced every
six months. No more than 3 carbon filters should be used at
the same time.
POWER BOX
P102-14B
2400-3000 ft2
222.96-278.70 m2
up to 1400 CFM
up to 2379 m3/hr
20 x 20 in.
510 x 510 mm
33 lbs
15.3 kg
120 V 60 Hz
30 Watts
Activated Carbon Filters
HIGH VOLTAGE
TRAY (HIDDEN)
CABINET
PREFILTERS
Electronic Air Cleaner Installation — Perform the following to install the electronic air cleaner:
1. Remove the existing furnace filter. Thoroughly clean the
blower compartment and ductwork where the air cleaner
is to be installed.
2. Open access door. Slide the prefilters and collecting cells
out of the cabinet.
3. Place cabinet in ductwork. Holes are provided to attach
cabinet to ductwork or equipment. If the adjoining ductwork is flanged, install the screws so that the screw heads
are inside the cabinet. This will help prevent damage to
prefilters and optional carbon filters during removal for
cleaning. Never put screws or rivets into the removable
power box.
COLLECTING
CELLS
CARBON
FILTERS
Fig. 1 — Electronic Air Cleaner
2
7 1/8"
20"
PERFORMANCE
INDICATOR
(NORMALLY ON)
POWER SWITCH
3 7/8"
H
HANDLE
AIR PROVING
SWITCH
PREFILTERS
CARBON FILTERS
A
F
E
F
AIR FLOW
B
D
ACCESS DOOR
LEFT TO RIGHT
OR
RIGHT TO LEFT
COLLECTOR
CELLS
F
C
7 1/2"
G
UNIT
P102-12
P102-14A
P102-14B
P102-20
A
21
(530)
21
(530)
257⁄8
(660)
257⁄8
(660)
B
17
(435)
17
(435)
22
(560)
22
(560)
C
231⁄4
(590)
26
(660)
211⁄4
(540)
26
(660)
DIMENSIONS — in. (mm)
D
E
131⁄8
203⁄4
(335)
(530)
135⁄8
24
(345)
(610)
18
183⁄4
(460)
(475)
18
231⁄2
(460)
(595)
F
11⁄4
(30)
1
(25)
11⁄4
(30)
11⁄4
(30)
G
233⁄4
(605)
261⁄2
(675)
213⁄4
(550)
261⁄2
(675)
Fig. 2 — Dimensions
HI BOY FURNACE
LO BOY FURNACE
RETURN AIR
RETURN AIR
RETURN AIR
RETURN AIR
ELECTRONIC
AIR CLEANER
ELECTRONIC
AIR CLEANER
NOTE: 22 in. ( 560 mm) clearance required for cleaning air cleaner.
6-in. (150 mm) clearance around power box for removal.
Fig. 3 — Electronic Air Cleaner Installation Location
3
H
23⁄8
(60)
21⁄8
(55)
23⁄8
(60)
23⁄8
(60)
Wiring — Wiring should be performed by qualified personnel only. All wiring must comply with all applicable codes
and standards. The voltage of the power source must match
the voltage indicated on the electronic air cleaner. The electronic air cleaner should operate ONLY when the fan is running. Make sure the electronic air cleaner is properly grounded.
When the air duct does not fit the air cleaner opening, a
gradual transition is recommended to reduce air turbulence through the air cleaner and to increase its efficiency. There should not be more than 20 degrees of expansion used on each side of the transition fitting. Do not
reduce ductwork to a smaller air cleaner or it will increase the velocity of airflow.
4. If the air cleaner is installed adjacent to an elbow or angle
fitting, turning vanes are recommended to improve air distribution across the collecting cells.
5. After electronic air cleaner has been secured, seal seams
airtight with duct tape or caulking to prevent dust from
entering the system.
6. Replace prefilters and collecting cells. Make sure arrow
on cell is pointing towards the fan. The cell handle may
need to be repositioned if the airflow is in a different direction than the left to right set up. The handle should
face the door. Close access door.
Electrical shock can cause injury or death. Be certain
main line disconnect switch is off before wiring.
Wire the electronic air cleaner directly to the 120-v power
source. The APS will power the electronic air cleaner when
there is sufficient airflow to activate the sensor. See Fig. 4
and 5.
NOTE: The power switch will be lit even if there is no
airflow.
PERFORMANCE
INDICATOR
(NORMALLY ON)
N
H
APS
4
3
2
1
SW2
SW1
120 VAC
0.5 A
GND
POWER
BOARD
H.V. ADJ.
GND
LAMP
120 VAC
AIR PROVING SWITCH
POWER
INTERLOCK
LT1
HV1
CLR
T
6200-6500 VDC ON CONTACTS
1
2
Fig. 4 — Electronic Air Cleaner Wiring — P102-12 and P102-14A Units
POWER
120 VAC
0.5 A
SW2
SW1
4
3
2
1
APS
INTERLOCK
GND
AIR PROVING SWITCH
PERFORMANCE
INDICATOR
(NORMALLY ON)
TR1
LAMP
24V
XFMER
GND
POWER
BOARD
H.V. ADJ.
2
HV1
CLR
R2
HV2
BLK
T
CONTACTS 1 & 4 - 7200-7800 VDC
1
LT1
3
BLK
4
CONTACTS 2 & 3 - 4800-5200 VDC
Fig. 5 — Electronic Air Cleaner Wiring — P102-14B and P102-20 Units
4
SYSTEM CHECK
Perform the following system check before operation.
1. Make sure all electronic air filter components are in place
and that access door is closed.
2. Turn electronic air cleaner power switch to ON. Ensure
system blower fan is operating. Both power switch light
and the performance indicator light should be lit. The power
switch light indicates the electronic air cleaner has unit
voltage. The performance indicator light shows that the
electronic air cleaner is operating.
NOTE: There may be some arcing or snapping sounds from
the cells or some odor of ozone. This is normal when the
unit is new. In about 2 weeks, as the sharp edges of the
collecting cells become smoother, the arcing and odor will
disappear.
3.
4.
5.
6.
7.
OPERATION
The electronic air cleaner will run as long as there is airflow through the ducts. The electronic air cleaner will not
run if the blower fan is off.
For proper operation of the electronic air cleaner, these
steps should be followed:
• run your heating/cooling system fan continuously and on
low speed if available
• remove furniture or carpets which block return air
grilles throughout your house, so that air moves freely to
the furnace
• check for proper operation of the blower fan on the
furnace
• ensure that the prefilters are cleaned on a regular basis.
detergent is recommended.) Allow detergent to run down
both sides of plates and ionizing wires. Let stand for
5 minutes.
Rinse cells with hot water (maximum 120 F [49 C]).
If dirt remains, let cells soak in solution of DAX detergent and water for 30 minutes.
Tilt cells on a 45 degree angle on their short side and
allow to dry completely (approximately 8 to 10 hours). A
hair dryer may be used to speed up drying time.
Wash prefilters. Do not wash in the same water as collecting cells. Spray prefilters with DAX detergent, rinse,
and let dry.
Place cells and prefilters back into cabinet. Close access
door and turn unit on. If the performance indicator light
does not come on or arcing occurs, turn the electronic air
cleaner off and allow the furnace fan to dry the cells
completely.
Damage to cells may occur if improperly handled or
washed. Do not wash cells in a dishwasher. Never use
any object to clean between the cell plates as this may
cause damage to plates or ionizing wires. Never place
cell in oven to dry. The edges of the cell may be sharp
— handle with care.
Carbon Filter Replacement — If the air cleaner has
optional carbon filters, they should be replaced every 3 to
6 months. Carbon filters remove odors from the air. Filters
are NOT washable. To replace filters, perform the
following:
1. Turn off power switch on electronic air cleaner.
2. Turn off furnace fan.
3. Open electronic air cleaner access door.
4. Remove cells from electronic air cleaner.
5. Pull out the used carbon filters. If the carbon filters do not
slide out easily, tilt them at a 45 degree angle and they
will fall out.
6. Put new carbon filters into electronic air cleaner. Space
filters evenly across face of air cleaner. Never put more
than 3 carbon filters in the electronic air cleaner as this
may cause a problem with airflow.
7. Reinstall cells. Close access door.
8. Turn on power to furnace fan and electronic air cleaner.
Ozone — The electronic air cleaner emits less than
0.005 ppm of ozone. Ozone may be noticeable in extremely
dry environments and can be prevented with proper
humidification.
Dust — After installation of the electronic air cleaner, you
may notice some white dust on table tops and shelves. Most
heavy particles (such as lint) settle quickly and do not get
filtered through the electronic air cleaner. To reduce lint and
dust, use continuous fan operation and keep return vents unrestricted to create an efficient airflow.
Lint dust, which is too heavy to remain airborne, will be
cleaner as the darker, staining particles have been removed
by the electronic air cleaner. Lint will be more noticeable
against dark furnishings. The electronic air cleaner does not
produce more lint or dust.
SERVICE
MAINTENANCE
It is very important that the scheduled maintenance be done
by the home owner. If cells and filters are not cleaned and
changed on a regular basis, the electronic air cleaner will not
operate effectively.
Electronic air cleaners use high voltage. Use extreme
caution when performing service on electronic air cleaner.
Only trained personel should perform service. Electric
shock can cause injury or death.
Make sure to turn electronic air cleaner off before
performing any maintenance or removing any
components.
Testing Air Proving Switch (APS) — The APS sensor
must protrude through the plastic bushing to work effectively. The sensor is very sensitive and operation may be affected by cold basement temperatures, an air exchanger, or
a fresh air duct connected to the cold air return just upstream
of the electronic air cleaner.
The APS uses a Triac in its output circuit which affects
the voltage sine wave. Using a regular digital voltmeter will
give a false reading. To check the output from the APS, use
a true RMS (root mean square) meter to measure the output
at terminals 1 and 4 of the APS. The output should be between 105 and 115 VAC, depending on the airflow across
the sensor.
Cell and Prefilter Cleaning — The collecting cells and
prefilters must be cleaned on a regular basis for the air cleaner
to function at its peak efficiency. The frequency of cleaning
will vary from one house to another. On average, the cells
should be cleaned every 3 months. To clean cells:
1. Remove door, cells, and prefilters.
2. Place cells in a laundry tub. Rinse cells with hot
water and spray completely with a non-chlorine, noncorrosive, non-abrasive liquid household detergent. (DAX
5
7. High voltage can be adjusted with high voltage potentiometer if required.
A neon lamp may be used to test the output of the
APS. Place the leads of the lamp across terminals 1 and 4 of
the APS, or across the 120 v input of the single output power
board. If the lamp lights, the voltage is sufficient for
operation.
When the electronic air cleaner is turned on without airflow, the APS sensor heats up and, after 30 seconds, opens
the circuit to turn off the power board. When the fan starts
up (the sensor is cooled), the circuit will close, the power
board is turned on, and the performance light will come on.
The light on the power switch will be lit even when the
APS is open.
If the power board fails to come on with the blower on,
check that the sensor is properly set down, through the plastic bushing, in front of the power box. To check the APS for
proper operation, turn the unit on and activate. The power
board should come on immediately, and then turn off in
30 seconds as the sensor heats up. To check sensor, blow
directly on it lightly. This should activate the power board
within 10 seconds. Service the sensor carefully; the sensor
leads are 120 V.
Replacing Performance Light — Before replacing performance light, turn off power to the electronic air cleaner at
the source. Perform the following procedure:
1. Remove the power box cover.
2. Disconnect the performance light wiring connected to the
LAMP terminals on the power board.
3. Push the light out through the front of the power box.
4. Push the new light into the power box.
5. Connect the wiring to the LAMP terminals on the power
board. See Fig. 4 and 5.
6. Replace cover.
7. Return power to electronic air cleaner. Test light.
Replacing a Power Board — Before replacing power
board, turn off power to the electronic air cleaner at the source.
Perform the following procedure:
1. Remove the power box cover.
2. Disconnect wiring from the LAMP, HV1, and 120 VAC
power board terminals (P102-12 and P102-14A) or LAMP,
HV1, HV2, and 24 v terminals (P102-14B and P102-20)
and ground. See Fig. 4 and 5.
3. Remove the two hex nuts from the power board.
4. Release the power board from the two plastic board spacers by pinching the end of the spacers and pulling the
board out.
5. Push new board onto spacers. Make sure spacers click
into place to hold down board.
6. Screw on two hex nuts saved from Step 3. Ensure the
star washer is in place over the steel spacer for proper
grounding.
7. Reconnect wiring to LAMP, HV1, and 120 VAC (P102-12
and P102-14A) terminals or LAMP, HV1, HV2, and
24 v terminals (P102-14B and P102-20) and ground on
the new power board.
8. Replace power box cover.
9. Return power to electronic air cleaner. Test power board.
NOTE: Although the power board has been set before shipping, it may be necessary to reset the voltage to the correct
load for optimum efficiency. Refer to Testing Voltage at Power
Board section for more information.
Replacing an Air Proving Switch (APS) — Before replacing the APS, turn off the power to the electronic air cleaner.
Perform the following procedure to replace the APS:
1. Disconnect wiring from terminals 1, 2, 3, and 4 on the
APS. See Fig. 4 and 5.
2. Release circuit board from plastic spacers by pinching end
of spacer and pulling board out.
3. Install new APS on plastic spacers. Ensure sensor protrudes slightly through plastic bushing.
4. Connect wiring to terminals on APS. See Fig. 4 and 5.
Wiring from power source is connected to terminals 2
and 3. Wiring to power board is connected to terminals 1
and 4.
5. Test the new APS. See procedure on page 5.
Testing for High Voltage at Power Board — A high
voltage meter capable of measuring up to 10,000 VDC is
required to test the voltage. Perform the following procedure to test for high voltage at the electronic air cleaner power
board:
1. The air cleaner should be on with the door closed. The
unit fan should be running. The electronic air cleaner should
be on at least 5 minutes to allow voltage to stabilize.
2. Remove cover from power box.
3. Connect the ground of the high voltage meter to an unpainted surface in the power box.
4. Check terminals HV1 and HV2 (where applicable) on the
power board to determine if voltage is present.
5. If no voltage present, remove both cells from the air cleaner
and replace door.
a. Check the voltage at HV1 and HV2 (where applicable) again.
b. If voltage is present, the problem is with one of the
cells or the copper contact on the high voltage tray.
c. With a flashlight, look into the cabinet to check condition of the copper contacts.
d. If the contacts are not bent, replace one cell and retest voltage. If cell is OK, test the other cell. If the
problem is with a cell, see troubleshooting guide.
e. Check the APS to make sure that it is functioning
correctly.
f. Check the transformer to make sure power is being supplied to the electronic air cleaner.
6. If there is voltage present but the performance light does
not come on, replace light.
Testing the 24-V Transformer (P102-14B and P102-20
Only) — To test the 24-v transformer, perform the following procedure:
1. The electronic air cleaner should be on. The unit fan should
be running. The electronic air cleaner door should be closed.
2. Remove power box cover.
3. Disconnect the leads of the 24-v transformer from the power
board. See Fig. 5.
4. Measure voltage across leads with a voltmeter. Voltage
should read 24 to 27 VAC.
5. If no voltage present, check the operation of the APS.
6. Before replacing transformer, check the resistance of the
power board input. Input should read above 40 Kohm. If
resistance is below 40 Kohm, the power board may be
the cause of the transformer failure.
7. Reconnect leads to power board.
8. Replace power box cover.
6
Replacing the 24-V Transformer (P102-14B and
P102-20 Only) — Before replacing 24-v transformer, turn
off power to the electronic air cleaner at the source. Perform
the following procedure:
1. Remove power box cover.
2. Disconnect the secondary leads from the transformer to
the 24 v terminals on the power board. See Fig. 5.
3. Cut the primary leads (to the APS) close to the
transformer.
4. Remove the two hex head nuts from the transformer studs.
5. Remove transformer.
6. Place new transformer over studs and re-install two hex
head nuts to lock into place.
7. Connect secondary leads (white) to the 24 v terminals
on the power board.
8. Wire nut primary leads from APS (cut in step 3) to primary leads from transformer.
9. Replace power box cover.
10. Turn on power to electronic air cleaner and test.
HIGH VOLTAGE
PROBE GROUND
PROBE
Testing Voltage of Power Board — Voltage on the power
board may drop below required level when installation area
is too damp, too cold, or if there is a leakage of water from
a humidifier. Voltage on power board may be too high when
installation area is too dry or too hot. By adjusting the
HV ADV potentiometer, the voltage can be set to optimum
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 electronic 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 electronic air cleaner and wait 5 minutes
before checking voltages to allow voltages on cells to
stabilize.
5. Measure the voltages at HV1 and HV2 (where applicable) on the power board. See Fig. 6.
6. Adjust the HV ADV potentiometer until the voltage reading matches the voltage in Table 2.
7. Turn off the electronic air cleaner.
8. Remove the high voltage meter.
9. Replace the power box cover.
10. Turn on electronic air cleaner.
Fig. 6 — Testing Voltage at Power Board
SAFETY
INTERLOCK
GROUNDED
AREA
PROBE
Table 2 — Power Board Voltage Settings
UNIT
P102-12,
P102-14A
P102-14B,
P102-20
MAXIMUM VOLTAGES MAXIMUM VOLTAGE ON
ON PLATES (K VDC)
IONIZER (K VDC)
6.2 - 6.5 (HV1)
6.2 - 6.5 (HV1)
4.8 - 5.2 (HV1)
7.2 - 7.8 (HV2)
TESTING VOLTAGE AT CELL — To test the voltage at the
cell, perform the following procedure:
1. Open the door to the air cleaner. Air cleaner will shut off.
2. Insert a thin shafted screwdriver 2 to 3 inches into the
hole in the round end plate insulator. See Fig. 7.
3. Attach the ground of the high voltage meter on to a grounded
area of the cell.
4. Place the tip of the high voltage probe on the shaft of the
screwdriver. Press down the safety interlock. Power to
electronic air cleaner will come on.
SCREWDRIVER
Fig. 7 — Testing Voltage at Cell
7
5. Wait until the voltage stabilizes then take a reading. Adjust the HV ADV potentiometer until the voltage reading
matches the voltage in Table 2. If the voltage fails to stabilize or jumps up and down by more than 100 v, there
may be a bad contact in the cell or a bad contact between
the cell contacts and the high voltage contacts on the contact tray.
6. Let up on the safety interlock. Remove high voltage meter.
7. Remove screwdriver and close access door.
SET APPROXIMATE VOLTAGE WITHOUT HIGH VOLTAGE METER — A high voltage meter should be used. If
one is not available, this method can be used. This will only
set an approximate voltage. After 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 ADV potentiometer fully clockwise. Electronic air cleaner may arc or snap at this point.
3. Turn the HV ADV potentiometer counterclockwise slowly
until the arcing and snapping stops.
4. Replace power box cover.
3. Press safety interlock switch to start electronic air cleaner.
There should be an initial 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 still
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 copper contact down.
If an arc is not seen and there is a bad contact, then the
problem may be the internal contact of the cell. With an
ohmmeter, check continuity between the top disc contact
and the first plate. The reading should be close to 0 ohms.
If not, bend the contact to touch the plate. On dual voltage units (three disc contacts), there are two internal contacts, one on each side. Test each contact.
4. Let up on safety interlock.
5. Remove screwdrivers.
6. Close access door.
Removing Power Box — To remove the power box, perform the following procedure:
1. Turn the main furnace switch off or disconnect the power
source.
2. Remove the power box cover.
3. Disconnect the source wires to the electronic air cleaner.
Cap off the wires so the furnace can still be operated.
4. Disconnect high voltage leads from power board.
5. Remove three nuts holding the power box to the cabinet.
Do not remove the nut at the center front located between
the switch and the light. This nut holds the high voltage
tray onto the power box.
Testing Cell for Bad Contacts — To test a cell for bad
contacts, perform the following procedure:
1. Open access door to air cleaner.
2. Place a screwdriver between plates of the cell, or place a
small screwdriver into the hole in the end plate insulator
and short with another screwdriver to cell end plate. See
Fig. 8.
Removal of High Voltage Contact Tray — To
remove the high voltage contact tray, perform the following
procedure:
1. Turn off power to electronic air cleaner.
2. Remove cells, prefilters, and carbon filters from electronic air cleaner.
3. Remove the high voltage wires from the power board.
4. With an 11⁄32-in. nut driver, remove the nut located at the
front and center of the power box. Lower the tray into the
cabinet area while feeding the high voltage wires down
through the plastic wire bushing. The wire with clear or
no sleeving is connected to terminal HV1 on the power
board. The wire with black sleeving is connected to terminal HV2 on the power board.
5. To remove the tray, slide the tray forward and release the
tab at the rear end of the cabinet.
6. To reinstall high voltage contact tray, reverse above
procedure.
SCREWDRIVER
Fig. 8 — Bad Contact Test
8
Replacing a Tungsten Ionizing Wire — Replacement
wires are cut to the correct length and have eyelets at each
end for easy replacement. To replace an ionizing wire, perform the following procedure:
1. Turn off power to electronic air cleaner.
2. Remove cell from electronic air cleaner.
3. Remove all parts of broken wire, as well as spring and
S-hook. If necessary, cell may be used temporarily with
one wire missing until a replacement is received.
4. Using needle nose pliers, place spring hook in the hole of
the ionizing bar near cell top.
5. Place eyelet of wire over the S-hook and place S-hook
into hole on ionizing bar on other side of cell. Keep wire
tight to ensure S-hook remains in hole.
6. Using the needle nose pliers, grab the end of the spring
and stretch towards loop in wire. Place eyelet in wire over
spring hook and release spring. See Fig. 9.
7. Install cell in electronic air cleaner.
8. Return power to electronic air cleaner.
9. Test cell for proper operation.
SPRING
IONIZING
BAR
WIRE
Fig. 9 — Replacing an Ionizing Wire
9
TROUBLESHOOTING
Refer to Table 3 for troubleshooting information.
Table 3 — Troubleshooting
PROBLEM
Unit does not function correctly. Power light and performance indicator light are
off.
Power light is off and performance indicator light is on.
Unit does not function correctly. Power light is on and
performance indicator light
is off.
PROBABLE CAUSE
Fan is not on.
Wiring improperly connected.
Defective power switch.
REMEDY
Turn furnace fan on.
Check wiring.
Check power switch for continuity with multimeter. Replace if
defective.
Defective safety interlock.
Remove door and press safety interlock with a screwdriver. If
lights come on, bend interlock lever towards front and close door.
Power (120 v) is not provided to device. Check power wiring with multimeter.
Defective power light.
Replace power switch.
Short in cells. Due to:
1. Broken ionizing wire(s).
2. Large particles wedged between cell
plates.
3. Cells washed recently and are still
wet.
4. Round end plate insulator is burnt or
melted.
5. Cell plates are bent.
Defective performance indicator light.
Defective power board.
Air proving switch sensor is burnt out.
Off board 24-v transformer is not
working.
Cell makes loud hissing
Internal cell contacts are not touching
noise or causes radio
plates.
interference.
Copper contacts on high voltage tray
not making good connection
on cell.
Cells arcing excessively
Cells wet from washing.
(power light and performance Particle lodged in cell or broken ionizing
indicator light on)
wire.
Ducts were not cleaned prior to installation of electronic air cleaner.
Cell plates are bent.
Voltage is too high.
Humidifier (if installed) is leaking water
on air cleaner.
Contacts on high voltage tray are
broken or bent upward.
Cells arcing excessively at
top of cell near copper contacts (power light and performance indicator light on)
Cells not collecting dirt
Arrow on cell(s) not pointing towards
(power light and performance fan blower.
indicator light on)
Furnace fan is on ‘‘Automatic’’
setting (air cleaner not on
continuously)
Not enough voltage on collecting cells.
Ozone odor
Cell plates are bent.
Loose or broken ionizing wires.
Dirty cells.
Electronic air cleaner is on when system fan is not running. Air switch not
activated, or electronic air cleaner wired
incorrectly.
Incoming voltage is higher than
120 v.
Air cleaner is oversized for house. Not
enough airflow to cover surface area
of cells.
Home is extremely dry.
More dust after installation
Lint dust too heavy to remain airborne.
than before
Gaps around electronic air cleaner.
10
1. Remove wire or wire fragments, spring and S-hook. Replace.
2. Shake large particles out or wash cell.
3. Allow cells to dry completely.
4. Replace end plate insulator.
5. Straighten plates with pliers.
Determine whether high voltage is present by testing power box. If
present, replace indicator light.
Adjust high voltage potentiometer on power board clockwise. If
high voltage is not present, replace power board.
Remove power box and connect with 120 v. Lightly blow on air
switch at the bottom of power box. If light does not come on,
replace switch.
Verify output of transformer. Replace if necessary.
Test contact and repair.
With needle-nose pliers, gently pull contacts down or replace
contacts.
Allow cells to dry completely.
Wash cell. Shake particle out of cell. Replace wire, if necessary.
Clean ducts.
Remove cells and adjust to original spacing using needle nose
pliers.
Adjust high voltage potentiometer on power board
counter-clockwise.
Repair humidifier. If possible, move humidifier to different location.
If possible, pull down contacts with needle-nose pliers or remove
high voltage tray and replace contacts.
Reposition cells.
Use ‘‘Fan On’’ furnace fan setting for continuous fan operation.
Adjust high voltage potentiometer clockwise on power board.
Straighten with needle-nose pliers.
Replace wires.
Wash cells.
Check operation and wiring of air switch and electronic air cleaner.
Adjust high voltage potentiometer counterclockwise on power
board.
Use correct size of electronic air cleaner.
Repair or install central humidifier.
Keep fan running continuously. Ensure that return air grilles are
not obstructed.
Seal or use duct tape around electonic air cleaner cabinet.
ELECTRONIC AIR CLEANER
LIMITED FIVE-YEAR WARRANTY
FIVE-YEAR WARRANTY — This CARRIER CORPORATION product is warranted to be free from defects in
material and workmanship under normal use and maintenance for a period of five years from the date of original
installation. A new or remanufactured part to replace the defective part will be provided without charge for the part
itself, through a qualified servicing CARRIER CORPORATION dealer or service, PROVIDED the deflective part
is returned to our distributor. The replacement part assumes the unused portion of the warranty.
THIS WARRANTY DOES NOT INCLUDE ANY ADDITIONAL LABOR ALLOWANCE OR OTHER COSTS , incurred for diagnosis, repairing, removing, installing, shipping, servicing, or handling of either defective parts or
replacement parts. SUCH COSTS MAY BE COVERED BY a separate warranty provided by the installer.
LIMITATIONS OF WARRANTIES — ALL IMPLIED WARRANTIES (INCLUDING IMPLIED WARRANTIES OF
MERCHANTABILITY) ARE HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED
WARRANTY IS GIVEN. THE EXPRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND
MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON
WHATSOEVER.
CARRIER WILL NOT BE RESPONSIBLE FOR:
1. Normal maintenance as outlined in the installation and servicing instructions or owners manual including cleaning and/or replacement of filters, media or electronic cells.
2. Damage or repairs required as a consequence of faulty installation or application by others.
3. Failure to start due to voltage conditions, blown fuses, open circuit breakers or other damages due to the
inadequacy or interruption of electrical service.
4. Damage or repairs needed as a consequence of any misapplication, abuse, improper servicing, unauthorized
alteration, or improper operations.
5. Damage as a result of floods, winds, fires, lightning, accidents, corrosive atmosphere, or other conditions
beyond the control of CARRIER CORPORATION.
6. Parts not supplied or designated by CARRIER CORPORATION.
7. CARRIER CORPORATION products installed outside the continental U.S.A., Alaska, Hawaii, and Canada.
8. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the exclusion of incidental or consequential damages, so
the above limitation may not apply to you.
Model No.
Unit Serial No.
Date of Installation
Installed by
Name of Owner
Address of Installation
11
Your Assurance of Quality
ALL Totaline products are backed by Carrier Corporation,
the world’s largest manufacturer of air conditioning,
heating, and refrigeration products.
Manufacturer reserves the right to discontinue, or
change at any time, specifications or designs
without notice and without incurring obligations.
REPLACEMENT COMPONENTS DIVISION
R CARRIER CORPORATION 1/99
PRINTED IN U.S.A.
LITERATURE NUMBER EAC-50SI
CATALOG NUMBER 570-562